Online gas permeation testing device for protective material

Abstract

The utility model discloses an on-line gas permeation testing device for a protective material, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a pressurizing chamber, one side of the top of the pressurizing chamber is hinged with a connecting cover, the pressurizing chamber and the connecting cover are both internally provided with hollow structures to form a sealed chamber, and the top of the connecting cover is fixedly connected with a transparent cylinder. A vent pipe extending into the transparent cylinder is fixedly connected to the center of the interior of the connecting cover, and the top of the vent pipe is of an n-shaped structure; a pressurizing assembly is arranged on one side of the pressurizing chamber and used for pressurizing the interior of the sealing chamber. By means of the structure, the protective material to be detected is placed between the pressurizing chamber and the connecting cover, gas can penetrate through the protective material to flow into the transparent barrel through the pressurizing assembly, the gas permeability of the protective material can be visually detected by observing the size or number of bubbles in a water body, the overall structure is light and simple, and the detection efficiency is high. The testing device is convenient to move or carry so as to meet online detection requirements, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of performance testing of protective materials, and particularly relates to an on-line gas permeability testing device for protective materials. Background Technique

[0002] Protective materials refer to materials used to protect personnel or items from harm or damage. These materials are widely used in many fields such as medical, chemical, construction, fire protection, transportation, etc., providing strong guarantees for the safety of staff and equipment. With the continuous progress of technology and the continuous expansion of application fields, the types and properties of protective materials are also constantly updated and improved to meet higher-level safety requirements.

[0003] The gas permeability test of protective materials aims to evaluate the gas barrier performance of protective materials. This test is crucial for ensuring the effectiveness of protective materials in actual use, especially in application scenarios where gas penetration or leakage needs to be prevented, such as packaging materials, building sealing materials, medical protective equipment and other fields.

[0004] Currently, the gas permeability test method for protective materials usually requires taking the protective material sample off the production line for offline testing. Since the conditions of the production line may be different from those of the offline test environment, for example, factors such as temperature, humidity, and pressure may not be exactly the same, the offline test may not fully reflect the performance of the protective material during the actual production process, and may lead to a certain deviation between the test result and the actual production situation, affecting the accurate evaluation of the gas permeability performance of the protective material. Therefore, the utility model provides an on-line gas permeability testing device for protective materials to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide an on-line gas permeability testing device for protective materials. Place the protective material to be detected between the pressurization chamber and the connection cover. Through the pressurization component, gas can flow through the protective material and into the inside of the air-permeable pipe. The gas flows from the inside of the air-permeable pipe to the inside of the transparent cylinder. By observing the size or quantity of bubbles in the water body, the gas permeability performance of the protective material can be intuitively detected. The overall structure is light and simple, which is beneficial to the movement or carrying of the testing device to meet the on-line detection requirements and is convenient to use.

[0006] To achieve the above purpose, an on-line gas permeability testing device for protective materials is provided, including a bottom plate. A pressurization chamber is fixedly connected to the top of the bottom plate. One side of the top of the pressurization chamber is hinged with a connection cover. The inside of both the pressurization chamber and the connection cover is set as a hollow structure to form a sealed chamber. A transparent cylinder is fixedly connected to the top of the connection cover. A central part inside the connection cover is fixedly connected with an air-permeable pipe extending into the inside of the transparent cylinder, and the top of the air-permeable pipe is set as an n-shaped structure;

[0007] One side of the pressurizing chamber is provided with a pressurizing component, and the pressurizing component is used to pressurize the inside of the sealing chamber.

[0008] According to the on-line gas permeability testing device for a protective material, the pressurizing component includes an air inlet pipe fixedly connected to the inside of the pressurizing chamber, a hose connected to one end of the air inlet pipe, and a pressurizing ball connected to one end of the hose.

[0009] According to the on-line gas permeability testing device for a protective material, two screws are symmetrically and threadedly connected to the inside of the connecting cover and away from the hinge side. Knobs are fixedly connected to the tops of the two screws. Threaded holes are symmetrically formed in the inner part of the top side of the pressurizing chamber and are in fit connection with the screws, and the two screws are connected to the corresponding threaded holes.

[0010] According to the on-line gas permeability testing device for a protective material, sealing rings are embedded at the bottom of the connecting cover and the top of the pressurizing chamber.

[0011] According to the on-line gas permeability testing device for a protective material, an anti-slip pad is fixedly connected to the bottom of the bottom plate.

[0012] According to the on-line gas permeability testing device for a protective material, a one-way valve is provided inside the end of the air permeating pipe away from the connecting cover.

[0013] The present utility model has the following beneficial effects:

[0014] Compared with the prior art, for the on-line gas permeability testing device for a protective material, the protective material to be detected is placed between the pressurizing chamber and the connecting cover. The pressurizing component can make the gas flow through the protective material and into the air permeating pipe, and the gas flows from the inside of the air permeating pipe into the transparent cylinder. By observing the size or quantity of the bubbles in the water body, the gas permeability of the protective material can be directly detected. The overall structure is light and simple, which is beneficial to the movement or carrying of the testing device to meet the on-line detection requirements and is convenient to use.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0017] Figure 1 is a three-dimensional structural schematic diagram of an on-line gas permeability testing device for a protective material of the present utility model;

[0018] Figure 2This is a schematic front sectional view of an on-line gas permeability testing device for a protective material of the present utility model;

[0019] Figure 3 This is a schematic front view of an on-line gas permeability testing device for a protective material of the present utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Pressurizing chamber; 3. Sealing chamber; 4. Pressurizing assembly; 5. Connecting cover; 6. Transparent cylinder; 7. Air permeable pipe; 8. Screw rod; 9. Knob; 10. Sealing ring; 11. Anti-slip pad; 41. Air inlet pipe; 42. Hose; 43. Pressurizing ball. Specific embodiments

[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1 - 3 , an on-line gas permeability testing device for a protective material in an embodiment of the present utility model includes a base plate 1. A pressurizing chamber 2 is fixedly connected to the top of the base plate 1. One side of the top of the pressurizing chamber 2 is hinged with a connecting cover 5. The interiors of the pressurizing chamber 2 and the connecting cover 5 are both hollow structures to form a sealing chamber 3. A transparent cylinder 6 is fixedly connected to the top of the connecting cover 5. A central portion inside the connecting cover 5 is fixedly connected with an air permeable pipe 7 extending into the transparent cylinder 6, and the top of the air permeable pipe 7 is provided with an n-shaped structure. A pressurizing assembly 4 is provided on one side of the pressurizing chamber 2. The pressurizing assembly 4 is used to pressurize the inside of the sealing chamber 3. The protective material to be tested is placed on the top of the pressurizing chamber 2 and the connecting cover 5 is rotated to cover the top of the pressurizing chamber 2, so as to realize the closing operation between the protective material and the sealing chamber 3. Gas is filled into the sealing chamber 3 through the pressurizing assembly 4. After the gas penetrates through the protective material, it enters the air permeable pipe 7. The gas flows from inside the air permeable pipe 7 into the transparent cylinder 6. By observing the size or quantity of bubbles in the water body, the gas permeability of the protective material can be intuitively detected. The overall structure is light and simple, which is beneficial to the movement or carrying of the testing device to meet the on-line detection requirements and is convenient to use.

[0024] The pressurizing assembly 4 includes an air inlet pipe 41 fixedly connected inside the pressurizing chamber 2, a hose 42 connected to one end of the air inlet pipe 41, and a pressurizing ball 43 connected to one end of the hose 42. By pressing the pressurizing ball 43, gas is injected into the pressurizing chamber 2 through the hose 42 and the air inlet pipe 41, and the gas pressure inside the sealing chamber 3 can be changed to better enable the gas to flow through the protective material and into the air permeable pipe 7.

[0025] On the side of the inside of the connecting cover 5 away from the hinge and symmetrically, two screw rods 8 are threadedly connected. At the top of both screw rods 8, a knob 9 is fixedly connected. Inside the top side of the pressurizing chamber 2, two threaded holes are symmetrically opened and are connected to the screw rods 8 in a matching manner. The two screw rods 8 are connected to the corresponding threaded holes. After the protective material to be detected is placed on the top of the pressurizing chamber 2, the connecting cover 5 is covered on the top of the pressurizing chamber 2. By rotating the knob 9 to drive the connection between the screw rod 8 and the threaded hole, the connection between the connecting cover 5 and the pressurizing chamber 2 can be completed. The operation is simple and convenient for the opening and closing of the connecting cover 5.

[0026] Sealing rings 10 are embedded at the bottom of the connecting cover 5 and the top of the pressurizing chamber 2. After the connecting cover 5 and the pressurizing chamber 2 are fitted together, under the action of the sealing rings 10, the connection can be better sealed. At the same time, the protective material is placed and clamped between the sealing rings 10, which can ensure good sealing between the protective material and the sealing rings 10.

[0027] The bottom of the bottom plate 1 is fixedly connected with an anti-slip pad 11. The anti-slip pad 11 increases the friction between the bottom plate 1 and the placement surface, ensuring the stability of the bottom plate 1 when placed.

[0028] A one-way valve is provided inside the end of the air permeable pipe 7 away from the connecting cover 5. Under the action of the one-way valve, the top of the air permeable pipe 7 can be closed, preventing water from flowing back into the sealing chamber 3 through the air permeable pipe 7 when cleaning the water inside the transparent cylinder 6.

[0029] Working principle: Place the protective material to be detected on the top of the pressurizing chamber 2 and rotate the connecting cover 5 to cover it on the top of the pressurizing chamber 2. By rotating the knob 9 to drive the connection between the screw rod 8 and the threaded hole, the connection between the connecting cover 5 and the pressurizing chamber 2 can be completed, thereby realizing the sealing operation between the protective material and the sealing chamber 3;

[0030] By pressing the pressurizing ball 43, gas is injected into the pressurizing chamber 2 through the hose 42 and the air inlet pipe 41. The gas pressure inside the sealing chamber 3 can be changed to better enable the gas to flow through the protective material and into the air permeable pipe 7. The gas flows from the inside of the air permeable pipe 7 to the inside of the transparent cylinder 6. By observing the size or quantity of the bubbles inside the water, the gas permeability of the protective material can be intuitively detected. The overall structure is light and simple, facilitating the movement or carrying of the testing device to meet the on-line detection requirements and being convenient to use.

[0031] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the technical field, various changes can also be made without departing from the purpose of the present invention.

Claims

1. An online gas permeation testing device for protective materials, characterized in that: The invention comprises a bottom plate (1), the top of the bottom plate (1) is fixedly connected to a pressurized chamber (2), one side of the top of the pressurized chamber (2) is hingedly connected to a connecting cover (5), the inside of the pressurized chamber (2) and the connecting cover (5) are both arranged as hollow structures to form a sealed chamber (3), the top of the connecting cover (5) is fixedly connected to a transparent cylinder (6), the center of the inside of the connecting cover (5) is fixedly connected to a ventilating tube (7) extending to the inside of the transparent cylinder (6), and the top of the ventilating tube (7) is arranged as an n-shaped structure; A pressurizing component (4) is provided on one side of the pressurizing chamber (2), and the pressurizing component (4) is used to pressurize the interior of the sealed chamber (3).

2. The protective material online gas permeation testing device according to claim 1, characterized in that: The pressurizing assembly (4) comprises an air inlet pipe (41) fixedly connected to the inside of the pressurizing chamber (2), a hose (42) connected to one end of the air inlet pipe (41), and a pressurizing ball (43) connected to one end of the hose (42).

3. The on-line gas permeation testing device for protective materials according to claim 2, characterized in that: Two screw rods (8) are symmetrically threadedly connected inside the connection cover (5) and on one side away from the hinge, and knobs (9) are fixedly connected to the tops of the two screw rods (8). Two threaded holes that are matched and connected to the screw rods (8) are symmetrically opened inside the top side of the pressurized chamber (2), and the two screw rods (8) are connected to the corresponding threaded holes.

4. The protective material online gas permeation testing device according to claim 3, characterized in that: A sealing ring (10) is embedded in the bottom of the connecting cover (5) and the top of the pressurizing chamber (2).

5. The on-line gas permeation testing device for protective materials according to claim 4, characterized in that: An anti-slip pad (11) is fixedly connected to the bottom of the base plate (1).

6. The on-line gas permeation testing device for protective materials according to claim 1, characterized in that: A one-way valve is provided inside the end of the air-permeable tube (7) away from the connecting cover (5).

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