Cloth air tightness measuring device

Abstract

The utility model provides a cloth air tightness measuring device. The cloth air tightness measuring device comprises a measuring main body and a control device, the measuring body comprises a base, a lower clamp, an upper clamp, a lifting device, a gas input device and a pressure gauge. The lower clamp is arranged on the base and provided with a lower clamp opening. And the upper clamp is arranged above the lower clamp. The lifting device is connected with the upper clamp. The gas input device is configured to provide gas to the interior of the lower clamp. The pressure gauge is configured to measure a pressure inside the lower clamp. The control device comprises a microcomputer controller and a test lamp. The microcomputer controller is electrically connected with the lifting device, the gas input device and the pressure gauge. And the test lamp is electrically connected with the microcomputer controller. According to the cloth air tightness measuring device provided by the invention, the manpower of manual operation can be reduced, and the measuring efficiency is improved. The automatic control lifting device can reduce the error that the retaining ring is not clamped, the measurement stability is improved, and the probability that a user is injured is reduced.

Description

Technical Field

[0001] The present disclosure relates to a fabric air tightness measuring device, and more particularly to a device for measuring the air tightness of protective clothing fabrics. Background Art

[0002] When measuring the air tightness of fabrics, it is necessary to ensure the tightness between the fabric to be tested and the clamping device to ensure the accuracy of the measured data. However, most general protective clothing is made of spunbond non-woven fabrics, and its surface is uneven. Therefore, when air pressure is provided during the test, air will escape from the gap between the protective clothing and the clamping device, and the air tightness of the protective clothing cannot be accurately evaluated.

[0003] Therefore, how to ensure that the protective clothing is tightly clamped with the clamping device without air leakage becomes an important issue. Utility Model Content

[0004] In view of this, an object of the present disclosure is to provide a fabric air tightness measuring device that can ensure the tightness between the fabric to be tested and a clamping device.

[0005] The present disclosure provides a fabric air tightness measuring device including a measuring body and a control device. The measuring body includes a base, a lower clamp, an upper clamp, a lifting device, a gas input device and a pressure gauge. The lower clamp is arranged on the base and has a lower clamp opening. The upper clamp is arranged above the lower clamp. The lifting device is connected to the upper clamp and configured to lift the upper clamp. The gas input device is configured to provide gas to the interior of the lower clamp. The pressure gauge is configured to measure the pressure inside the lower clamp. The control device includes a microcomputer controller and a test lamp. The microcomputer controller is electrically connected to the lifting device, the gas input device and the pressure gauge. The test lamp is electrically connected to the microcomputer controller.

[0006] In some embodiments, the upper clamp and the lower clamp are both circular or square in shape, and the upper clamp and the lower clamp are detachable and replaceable.

[0007] In some embodiments, the base further includes a groove for setting and fixing the lower clamp, wherein the shape of the groove includes circle, square, or a combination thereof.

[0008] In some embodiments, the gas input device further includes a pump and a control valve, and the pump is electrically connected to the control valve.

[0009] In some embodiments, the fabric air tightness measuring device further includes a display device, which is disposed on the control device and is electrically connected to the microcomputer controller.

[0010] In some embodiments, the upper clamp includes a first part connected to the lifting device; a second part, which is an annular structure, wherein the second part and the lower clamp jointly clamp the fabric to be tested; and a third part, which connects the first part and the second part, wherein the third part is a columnar structure.

[0011] In some embodiments, the fabric to be tested is protective clothing.

[0012] In some embodiments, the fabric air tightness measuring device further includes an upper silicone pad disposed on the second portion of the upper fixture; and a lower silicone pad disposed on an opening flange at the lower fixture opening of the lower fixture.

[0013] In some embodiments, the shape of the upper silicone pad is the same as the shape of the second portion of the upper clamp, and the size of the upper silicone pad is the same as the size of the second portion of the upper clamp.

[0014] In some embodiments, the shape of the lower silicone pad is the same as the shape of the opening flange of the lower clamp, and the size of the lower silicone pad is the same as the size of the opening flange of the lower clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] When reading the attached drawings, the various aspects of the present disclosure can be fully understood from the following detailed description, and the various embodiments described below can be referred to the attached drawings, and the same numbers in the drawings represent the same or similar elements. In addition, in order to simplify the drawings, some conventional structures and elements will be depicted in a simple schematic manner in the drawings.

[0016] Figure 1 A three-dimensional schematic diagram of a fabric air tightness measuring device is shown according to some embodiments of the present disclosure;

[0017] Figure 2 A schematic diagram showing a configuration of a fabric air tightness measuring device according to some embodiments of the present disclosure;

[0018] Figure 3 A three-dimensional schematic diagram of a lower clamp is shown according to some embodiments of the present disclosure;

[0019] Figure 4 A schematic top view of a base is shown according to some embodiments of the present disclosure;

[0020] FIG. 5A to FIG. 5B According to some embodiments of the present disclosure, a schematic top view of a silicone pad is shown.

[0021]

Explanation of symbols

[0022] 100: Fabric air tightness measurement device

[0023] 200: Measurement subject

[0024] 210: Lifting device

[0025] 220: Top cover

[0026] 230: Upper fixture

[0027] 230a: Part I

[0028] 230b: Part 2

[0029] 230c: Part III

[0030] 232: Silicone pad

[0031] 240: Bracket

[0032] 250: Lower clamp

[0033] 252: Lower silicone pad

[0034] 254: Lower fixture opening

[0035] 256: Open flange

[0036] 260: Gas input device

[0037] 262: Pump

[0038] 264: Control valve

[0039] 268: Pressure gauge

[0040] 270: Base

[0041] 272: Groove

[0042] 280: Fabric to be tested

[0043] 300: Control device

[0044] 310: Microcomputer controller

[0045] 320: Display device

[0046] 320a: Control interface

[0047] 330: Test Light

[0048] S1: Input control signal

[0049] S2: Cylinder control signal

[0050] S3: Pump control signal

[0051] S4: Valve body control signal

[0052] S5: Pressure signal

[0053] S6: Light signal

[0054] S7: Output result signal DETAILED DESCRIPTION

[0055] For ease of description, spatially relative terms (e.g., "under," "below," "below," "above," "above," etc.) may be used herein to describe the relationship between one element or feature shown in the figure and another element or feature. It should be understood that in addition to the directions depicted in the drawings, spatially relative terms also cover the scope of use or operation of the device in different directions. For example, if the device in the drawings is turned over, the elements described as "under" or "below" other elements or features will be oriented to be "on" or "above" other elements or features. Thus, for example, the term "under" can include both above and below orientations. The device can be configured in other orientations and spatially relative descriptors can be used corresponding to this orientation.

[0056] The present disclosure provides a fabric air tightness measurement device 100. Figure 1 and Figure 2 The cloth air tightness measuring device 100 includes a measuring body 200 and a control device 300. The measuring body 200 includes a lifting device 210, a top cover 220, an upper fixture 230, a bracket 240, a lower fixture 250, a gas input device 260 and a base 270.

[0057] A plurality of brackets 240 are disposed on the base 270, and a top cover 220 is disposed on the plurality of brackets 240, forming a frame of the measuring body 200. A lifting device 210 is disposed on the top cover 220, and the lifting device 210 is connected to the upper fixture 230, and the lifting device 210 is used to lift the upper fixture 230. In some embodiments, the lifting device 210 may be a cylinder or other device capable of lifting the upper fixture 230.

[0058] like Figure 1 As shown, the upper fixture 230 is connected to the lifting device 210, and the upper fixture 230 is located above the lower fixture 250. The upper fixture 230 includes a first portion 230a, a second portion 230b and a third portion 230c. The first portion 230a is connected to the lifting device 210. The second portion 230b is connected to the first portion 230a through the third portion 230c, wherein the third portion 230c is a columnar structure. In some embodiments, the first portion 230a is a sheet-like complete circle, and the second portion 230b is annular with an opening.

[0059] The lower clamp 250 includes a lower clamp opening 254 and an opening flange 256. Specifically, the opening flange 256 of the lower clamp 250 and the second portion 230b of the upper clamp 230 jointly clamp the fabric 280 to be tested. In some embodiments, the fabric 280 to be tested may be a protective garment, which may have, for example, a polyethylene (PE) protective coating or a multi-layer polymer protective film.

[0060] The gas input device 260 is configured to provide gas to the interior of the lower fixture 250. Figure 2 As shown, the gas input device 260 includes a pump 262 and a control valve 264 , and the pump 262 and the control valve 264 are electrically connected. The pressure gauge 268 is configured to measure the pressure inside the lower fixture 250 .

[0061] The control device 300 includes a microcomputer controller 310, a display device 320, and a test light 330. The microcomputer controller 310 is electrically connected to the lifting device 210, the gas input device 260, the pressure gauge 268, the display device 320, and the test light 330. The display device 320 is disposed on the control device 300, and the display device 320 further includes a control interface 320a. The user can operate the fabric air tightness measuring device 100 through the control interface 320a of the display device 320, and obtain the measurement results through the display device 320.

[0062] like Figure 2 As shown, when the user places the fabric 280 to be tested between the upper clamp 230 and the lower clamp 250. The user operates the control interface 320a of the display device 320, and the control interface 320a transmits an input control signal S1 to the microcomputer controller 310. The microcomputer controller 310 transmits a cylinder control signal S2 to the lifting device 210, automatically lowering the upper clamp 230. The upper clamp 230 and the lower clamp 250 jointly clamp the fabric 280 to be tested. Next, the microcomputer controller 310 transmits a pump control signal S3 to the pump 262 and a valve body control signal S4 to the control valve 264, so that air enters the interior of the lower clamp 250. The pressure gauge 268 measures the pressure value inside the lower clamp 250 and transmits a pressure signal S5 to the microcomputer controller 310.

[0063] Next, after receiving the pressure signal S5, the microcomputer controller 310 determines whether the pressure signal S5 is qualified. For example, when the pressure signal S5 shows that the pressure difference between the pressure in the lower fixture 250 and the atmospheric pressure at that time is within the pre-set judgment standard, the pressure signal S5 is judged to be qualified. After the microcomputer controller 310 completes the judgment, it transmits the light signal S6 to the test light 330 and the output result signal S7 to the control interface 320a. At this time, the user can observe whether the measurement result is qualified from the display device 320 and the test light 330.

[0064] In some embodiments, the microcomputer controller 310 is set to light up the test light 330 when the measurement result passes. In other embodiments, the microcomputer controller 310 is set to light up the test light 330 when the measurement result fails. In some embodiments, the microcomputer controller 310 is set to light up lights of different colors when the measurement result passes and fails, for example, the test light 330 displays a green light when the measurement result passes and displays a red light when the measurement result fails.

[0065] Since the lifting device 210 is connected to the upper clamp 230, and the microcomputer controller 310 automatically controls the lifting device 210, the user only needs to place the fabric 280 to be tested on the lower clamp 250, and the fabric air tightness measuring device 100 can automatically clamp the fabric 280 to be tested. The fabric air tightness measuring device 100 provided by the present disclosure does not need to manually clamp the fabric 280 to be tested with a buckle, which can reduce manual operation time and labor. In addition, the built-in program of the microcomputer controller 310 automatically determines the measurement result of the fabric 280 to be tested, which can reduce the error of human judgment and increase the stability of the measurement.

[0066] In some embodiments, Figure 1 As shown, both the upper fixture 230 and the lower fixture 250 are circular. Figure 3 A three-dimensional schematic diagram of a square lower clamp 250 is shown. In other embodiments, both the upper clamp 230 and the lower clamp 250 are square. In some embodiments, both the upper clamp 230 and the lower clamp 250 can be disassembled and replaced. The cross-sectional area and shape of the upper and lower clamps must comply with the standards of the test method, and the test method used in this disclosure is BS EN 14325:2018.

[0067] Please refer to Figure 4 The base 270 of the fabric air tightness measuring device 100 includes a groove 272. The groove 272 is used to place and fix the lower fixture 250. As mentioned above, the shape of the lower fixture 250 can be round or square, such as Figure 4 As shown, the shapes of the groove 272 include circular and square. When different upper clamps 230 and lower clamps 250 need to be replaced, the groove 272 can be suitable for circular lower clamps 250 or square lower clamps 250.

[0068] Please refer to FIG. 5A to FIG. 5B, the fabric air tightness measuring device 100 includes an upper silicone pad 232 and a lower silicone pad 252. The upper silicone pad 232 is disposed on the second portion 230b of the upper fixture 230. When the fabric air tightness measuring device 100 is used, the upper silicone pad 232 is located between the second portion 230b and the fabric 280 to be measured. The shape of the upper silicone pad 232 is the same as the shape of the second portion 230b of the upper fixture 230. The size of the upper silicone pad 232 is the same as the size of the second portion 230b of the upper fixture 230. When replacing the upper fixture 230 with a different shape, the upper silicone pad 232 with a different shape also needs to be replaced.

[0069] The upper silicone pad 232 is disposed on the opening flange 256 of the lower clamp opening 254 of the lower clamp 250. When the fabric air tightness measuring device 100 is used, the lower silicone pad 252 is located between the opening flange 256 and the fabric to be tested 280. The size of the lower silicone pad 252 is the same as the size of the opening flange 256 of the lower clamp 250. When the lower clamp 250 of a different shape is replaced, the lower silicone pad 252 of a different shape also needs to be replaced.

[0070] like Figure 5A As shown, the upper silicone pad 232 and the lower silicone pad 252 are both circular. Figure 5B As shown, the upper silicone pad 232 and the lower silicone pad 252 are both square.

[0071] Since the upper silicone pad 232 and the lower silicone pad 252 are plastic, when the upper clamp 230 and the lower clamp 250 clamp the fabric 280 to be tested during the measurement process, air leakage from the gap between the clamp and the fabric 280 to be tested can be prevented.

[0072] The stability test results of protective clothing measured by the cloth air tightness measuring device 100 according to the above embodiment are shown in Table 1. The test method used in Table 1 is BS EN 14325:2018.

[0073]

[0074]

[0075] Table 1

[0076] The stability test results of the cloth air tightness measuring device 100 according to the above embodiment for protective clothing materials with different fabric structures are shown in Table 2. The test method used in Table 2 is BS EN 14325:2018.

[0077]

[0078] Table 2

[0079] It can be seen from Table 1 and Table 2 that the fabric air tightness measuring device 100 disclosed in the present invention has good measurement stability and can provide stable measurement results for protective clothing with different fabric structures.

[0080] The fabric air tightness measuring device disclosed in the present invention can automatically clamp the fabric to be tested, without the need to manually operate the buckle to clamp the fixture, which can reduce the chance of injury to the user. In addition, the fabric air tightness measuring device disclosed in the present invention can reduce the labor of manual operation and increase the measurement efficiency. The automatic control lifting device can also reduce the error of manual operation that causes the buckle to not be clamped, thereby increasing the stability of the measurement. In addition, the measurement result of the fabric to be tested is automatically judged by the built-in program of the microcomputer controller, which can reduce the error of human judgment and increase the stability of the measurement. A silicone pad is arranged between the fixture and the fabric to be tested, and the plasticity of the silicone pad can be used to prevent air from leaking from the gap between the fixture and the fabric to be tested, thereby increasing the stability of the measurement.

[0081] Although the present disclosure has been described in considerable detail with reference to certain embodiments, other embodiments are possible. Therefore, the spirit and scope of the appended claims should not be limited to the description of the embodiments contained herein.

[0082] It is obvious to those skilled in the art that various modifications and changes can be made to the structure of the present disclosure without departing from the scope or spirit of the present disclosure. In view of the foregoing, the present disclosure is intended to cover modifications and changes of the present disclosure that fall within the appended claims.

Claims

1. A cloth air tightness measuring device, characterized in that: include: Measurement subjects include: Base; A lower fixture is disposed on the base and has a lower fixture opening; an upper fixture, disposed above the lower fixture; A lifting device connected to the upper fixture and configured to lift the upper fixture; a gas input device configured to provide gas to the interior of the lower fixture; and a pressure gauge configured to measure the pressure inside the lower fixture; and A control device, configured to control the measurement subject, comprising: a microcomputer controller electrically connected to the lifting device, the gas input device and the pressure gauge; and A test lamp is electrically connected to the microcomputer controller.

2. The cloth air tightness measuring device according to claim 1, characterized in that: The upper clamp and the lower clamp are both round or square in shape, and can be disassembled and replaced.

3. The cloth air tightness measuring device according to claim 2, characterized in that: The base further comprises: The groove is used to set and fix the lower fixture, wherein the shape of the groove includes circle, square, or a combination thereof.

4. The cloth air tightness measuring device according to claim 1, characterized in that: The gas input device further includes a pump and a control valve, and the pump is electrically connected to the control valve.

5. The cloth air tightness measuring device according to claim 1, characterized in that: Further including: The display device is arranged on the control device and is electrically connected to the microcomputer controller.

6. The cloth air tightness measuring device according to claim 1, characterized in that: The upper fixture comprises: The first part is connected to the lifting device; The second part is an annular structure, wherein the second part and the lower clamp jointly clamp a piece of fabric to be tested; and The third part connects the first part and the second part, wherein the third part is a columnar structure.

7. The cloth air tightness measuring device according to claim 6, characterized in that: The fabric to be tested is protective clothing.

8. The cloth air tightness measuring device according to claim 6, characterized in that: Further including: an upper silicone pad, disposed on the second portion of the upper fixture; and The lower silicone pad is arranged on the opening flange of the lower clamp at the opening of the lower clamp.

9. The cloth air tightness measuring device according to claim 8, characterized in that: in, The shape of the upper silicone pad is the same as the shape of the second portion of the upper clamp, and The size of the upper silicone pad is the same as the size of the second portion of the upper clamp.

10. The cloth air tightness measuring device according to claim 8, characterized in that: in, The shape of the lower silicone pad is the same as the shape of the opening flange of the lower clamp, and The size of the lower silicone pad is the same as the size of the opening flange of the lower clamp.

Images