A waterproof cloth performance detection device

Abstract

The application discloses a waterproof cloth performance detection device, which comprises a machine table, a moving assembly, a waterproof cloth fixing assembly and a detection assembly. The moving assembly is installed on the machine table, and the waterproof cloth fixing assembly is arranged on the moving assembly and used for fixing the waterproof cloth to be detected. The detection assembly comprises a mounting base, a magnetic block one, a magnetic block two, a sliding plate and a plurality of detection plates with different surface roughnesses. The mounting base is provided with a sliding groove, the sliding plate is movably installed in the sliding groove, and the detection plates are detachably installed on the sliding plate. The magnetic block one is arranged on the groove wall of the sliding groove, the magnetic block two is arranged on the sliding plate, and the magnetic block one and the magnetic block two are arranged to repel each other. A displacement sensor for measuring the moving distance of the sliding plate is arranged in the sliding groove. The anti-skid performance of the waterproof cloth under different roughness conditions is detected by measuring the moving distance of the sliding plate through the displacement sensor. The waterproof cloth performance detection device can simulate various surface roughness conditions and has high measurement precision.

Description

Technical Field

[0001] This invention relates to the field of testing device technology, and specifically to a device for testing the performance of waterproof fabric. Background Technology

[0002] Waterproof fabrics, such as raincoats, tent fabrics, waterproof tarpaulins, and various outdoor protective fabrics, are widely used due to their excellent water-repellent and breathable properties. In practical use, waterproof fabrics are often not stationary but may be laid on surfaces such as slopes, vehicles, or tent frames. Therefore, their surface anti-slip performance is one of the key indicators of product quality. Waterproof fabrics with insufficient anti-slip performance are prone to slipping and misalignment during use, leading to protective failure or safety hazards.

[0003] Currently, there are several testing devices and methods available for testing the anti-slip performance of waterproof fabrics. For example, a common testing method involves fixing the waterproof fabric to be tested on an inclined plane and then letting a standard slider slide down its surface, indirectly evaluating the anti-slip performance by measuring the slider's travel distance or initial sliding velocity. However, such devices typically have the following shortcomings: First, the friction conditions of the test surface are limited. Most existing devices can only provide a contact surface with a fixed roughness, making it difficult to easily change or simulate test conditions with different surface roughnesses. As a result, it is difficult to comprehensively evaluate the anti-slip properties of waterproof fabric in different application scenarios (such as contact with smooth metal, rough wood or fabric surfaces).

[0004] Second, the measurement methods are relatively primitive. Some devices still rely on manual observation of the slider's movement distance, which is not only inefficient but also results in significant human reading errors, making it difficult to achieve automated, high-precision quantitative detection. Summary of the Invention

[0005] The problem to be solved by the present invention is to provide a waterproof fabric performance testing device that can simulate various surface roughness conditions and has high measurement accuracy.

[0006] The technical solution provided by the present invention to solve the above problems is: a waterproof fabric performance testing device, comprising a machine base, a moving component, a waterproof fabric fixing component, and a testing component; The moving component is mounted on the machine base, and the waterproof cloth fixing component is set on the moving component. The waterproof cloth fixing component is used to fix the waterproof cloth to be tested. The testing component includes a mounting base, a magnetic block one, a magnetic block two, a sliding plate, and several testing plates with different surface roughness. The mounting base is provided with a sliding groove, the sliding plate is movably mounted in the sliding groove, and the testing plate is detachably mounted on the sliding plate. The first magnetic block is disposed on the wall of the chute, and the second magnetic block is disposed on the sliding plate. The first magnetic block and the second magnetic block are arranged in a repulsive manner. The groove is equipped with a displacement sensor for measuring the moving distance of the sliding plate. The anti-slip performance of the waterproof cloth under different roughness conditions is detected by measuring the moving distance of the sliding plate by the displacement sensor.

[0007] Preferably, the sliding plate is provided with a mounting groove, the mounting groove is matched with the shape and size of the detection plate, and the sliding plate is detachably installed in the mounting groove.

[0008] Preferably, the sliding plate is further provided with a positioning component for positioning the inspection plate.

[0009] Preferably, the positioning component includes a magnetic cylinder, a positioning post, and a return spring. The sliding plate is provided with a piston hole that mates with the magnetic cylinder and a movable hole that mates with the positioning post. The piston hole and the movable hole are connected. The magnetic cylinder is fixedly connected to the positioning post. The return spring is fitted onto the positioning post. One end of the return spring is fixedly connected to the magnetic cylinder, and the other end is fixedly connected to the bottom of the piston hole. The side of the detection plate is provided with a positioning hole that mates with the positioning post. The magnetic cylinder and the magnetic block are arranged in a repulsive manner.

[0010] Preferably, the positioning component further includes an auxiliary positioning mechanism for positioning the other side of the detection plate.

[0011] Preferably, the auxiliary positioning mechanism includes a piston head, a second positioning post, and a second return spring. The sliding plate has a second piston hole (which mates with the piston head) and a second movable hole (which mates with the second positioning post) at one end away from the first piston hole. The second piston hole and the second movable hole are connected. The piston head is fixedly connected to the second positioning post. The second return spring is fitted onto the second positioning post. One end of the second return spring is fixedly connected to the piston head, and the other end is fixedly connected to the bottom of the second piston hole. The detection plate has a second positioning hole (which mates with the second positioning post) on its side away from the first positioning hole. The first piston hole and the second piston hole are connected through a vent hole.

[0012] Preferably, one end of the vent hole is connected to the piston hole one near the bottom of the hole, and the other end is connected to the piston hole two away from the movable hole two.

[0013] Preferably, the moving component includes a moving frame, a motor, and a lead screw. The machine base is provided with a guide rail that cooperates with the moving frame. Both ends of the moving frame are provided with threaded holes that cooperate with the lead screw. The lead screw is rotatably mounted on the machine base, and the motor is connected to the lead screw via a transmission.

[0014] Preferably, the waterproof cloth fixing assembly includes an electric push rod and a fixing head. One end of the electric push rod is fixedly connected to the moving frame, and the other end is fixedly connected to the fixing head. The waterproof cloth to be tested is fixed to the fixing head by bolts or glue.

[0015] Compared with existing technologies, the advantages of this invention are as follows: By setting multiple detachable and replaceable test plates with different surface roughness, this invention can conveniently simulate various different materials or textures that waterproof fabric may come into contact with during actual use, thereby comprehensively evaluating its anti-slip performance under different working conditions and significantly improving the applicability and flexibility of the test. Simultaneously, repulsive magnetic blocks one and two are respectively set on the groove wall and the sliding plate, utilizing magnetic interaction to form a non-contact stable repulsive force. This not only avoids the mechanical wear and pressure fluctuation problems easily caused by traditional mechanical springs or weight loading methods, but also allows the sliding plate to move smoothly under the friction of the waterproof fabric, thus ensuring the long-term stability of the test conditions and the consistency of the test results. Furthermore, a displacement sensor is configured in the groove to accurately measure the moving distance of the sliding plate, realizing automated and quantitative testing of the anti-slip performance of the waterproof fabric. Compared with manual observation and reading, this greatly improves measurement accuracy and testing efficiency, and reduces human error. Attached Figure Description

[0016] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the detection component of the present invention; Figure 3 This is a cross-sectional view of the detection component of the present invention; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 yes Figure 3 Enlarged view of point B in the middle; Figure 6 This is a schematic diagram of the waterproof fabric fixing assembly of the present invention.

[0018] Attached diagram labels: 1. Machine base, 2. Moving frame, 3. Detection plate, 4. Mounting base, 5. Lead screw, 6. Motor, 7. Sliding plate, 8. Slide groove, 9. Magnetic block one, 10. Magnetic block two, 11. Vent hole, 12. Magnetic cylinder, 13. Piston hole one, 14. Return spring one, 15. Positioning pin one, 16. Positioning hole one, 17. Piston hole two, 18. Piston head, 19. Return spring two, 20. Positioning pin two, 21. Positioning hole two, 22. Electric push rod, 23. Fixed head. Detailed Implementation

[0019] The following will describe in detail the implementation of the present invention with reference to the accompanying drawings and embodiments, so that the process of how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] In the description of this invention, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this invention, "a number" means two or more, unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0024] It should also be understood that the terminology used in this specification of embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the invention. As used in this specification of embodiments of the invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] As shown in the accompanying drawings, a waterproof fabric performance testing device includes a machine base 1, a moving component, a waterproof fabric fixing component, and a testing component. The moving component is installed on the machine base 1, and the waterproof cloth fixing component is set on the moving component. The waterproof cloth fixing component is used to fix the waterproof cloth to be tested. The testing component includes a mounting base 4, a magnetic block 1 9, a magnetic block 2 10, a sliding plate 7, and several testing plates 3 with different surface roughness. The mounting base 4 is provided with a sliding groove 8, the sliding plate 7 is movably installed in the sliding groove 8, and the testing plate 3 is detachably installed on the sliding plate 7. The magnetic block 9 is disposed on the groove wall of the slide 8, and the magnetic block 10 is disposed on the sliding plate 7. The magnetic block 9 and the magnetic block 10 are disposed in a repulsive manner. The groove 8 is equipped with a displacement sensor for measuring the moving distance of the sliding plate 7. The anti-slip performance of the waterproof cloth under different roughness conditions is detected by measuring the moving distance of the sliding plate 7 through the displacement sensor.

[0026] The sliding plate 7 is provided with a mounting groove, which matches the shape and size of the inspection plate 3, and the sliding plate 7 can be detachably installed in the mounting groove. Specifically, the sliding plate 7 is also provided with a positioning component for positioning the inspection plate.

[0027] In this embodiment, the positioning assembly further includes a magnetic cylinder 12, a positioning post 15, and a return spring 14. The sliding plate 7 is provided with a piston hole 13 that cooperates with the magnetic cylinder 12 and a movable hole 1 that cooperates with the positioning post 15. The piston hole 13 and the movable hole 1 are connected. The magnetic cylinder 12 and the positioning post 15 are fixedly connected. The return spring 14 is fitted on the positioning post 15. One end of the return spring 14 is fixedly connected to the magnetic cylinder 12, and the other end is fixedly connected to the bottom of the piston hole 13. The side of the detection plate 3 is provided with a positioning hole 16 that cooperates with the positioning post 15. The magnetic cylinder 12 and the magnetic block 9 are arranged in a repulsive manner.

[0028] The positioning assembly further includes an auxiliary positioning mechanism for positioning the other side of the detection plate 3. Specifically, the auxiliary positioning mechanism includes a piston head 18, a second positioning post 20, and a second return spring 19. The sliding plate 7 has a piston hole 17 cooperating with the piston head 18 and a movable hole 17 cooperating with the second positioning post 20 at one end away from the first piston hole 13. The second piston hole 17 and the movable hole 17 are connected. The piston head 18 is fixedly connected to the second positioning post 20. The second return spring 19 is fitted onto the second positioning post 20. One end of the second return spring 19 is fixedly connected to the piston head 18, and the other end is fixedly connected to the bottom of the second piston hole 17. The detection plate 3 has a second positioning hole 21 cooperating with the second positioning post 20 on the side away from the first positioning hole 16. The first piston hole 13 and the second piston hole 2 are connected through a vent hole 11. Specifically, one end of the vent 11 is connected to the piston hole 13 near the bottom of the hole, and the other end is connected to the piston hole 2 far from the movable hole 2 17.

[0029] In practice, the operator first selects a testing plate with a specific surface roughness based on the testing requirements for the anti-slip performance of the waterproof fabric. Since the sliding plate has mounting grooves that match the shape and size of the testing plate, the operator simply places the testing plate into the groove; at this point, the testing plate is not yet fully fixed. Before testing begins, the moving assembly is in its initial position. The electric push rod is activated, causing the waterproof fabric to be tested to press down until it contacts the testing plate. Then, the motor is started, driving the lead screw to rotate. The lead screw drives the moving frame and its waterproof fabric fixing assembly to move smoothly along the guide rails on the machine platform. As the moving frame moves forward, it moves the sliding plate, causing the magnetic cylinder on the sliding plate to move relative to the magnetic block one on the slide groove wall. During this process, because the sliding plate is movably installed within the slide groove, and the magnetic block one on the slide groove wall and the magnetic block two on the sliding plate are set with the same poles repelling each other, the sliding plate is actually subjected to a force that constantly pushes it away from the magnetic block one. When the waterproof fabric slides on the surface of the testing plate, the friction between them overcomes part of the magnetic repulsion force, causing the sliding plate to move along the slide groove towards the magnetic block one. The greater the friction, the longer the sliding plate is pulled towards the magnetic block one; the smaller the friction, the shorter the distance the sliding plate moves. Since the magnetic block one and the magnetic cylinder are arranged in a repulsive manner, as they gradually approach each other, the repulsive force pushes the magnetic cylinder towards the detection plate. The magnetic cylinder drives the positioning post one, which is fixedly connected to it, to move synchronously. Simultaneously, it compresses the reset spring one fitted on the positioning post one, causing the end of the positioning post one to insert into the positioning hole one, positioning one side of the detection plate. At the same time, since the sliding plate has a vent hole connecting piston hole one and piston hole two, when the magnetic cylinder moves within piston hole one, it changes the air pressure within piston hole one. This pressure change is transmitted to piston hole two through the vent hole, pushing the piston head within piston hole two and the positioning post two, which is fixedly connected to the piston head, to move. The reset spring two is correspondingly compressed, causing the positioning post two to simultaneously insert into the positioning hole two on the other side of the detection plate. In this way, both sides of the testing plate are simultaneously locked by positioning posts one and two, achieving rapid, automatic, and stable dual-sided positioning and ensuring that the testing plate will not shift or tilt during subsequent sliding. After the testing plate is installed, the operator fixes the waterproof fabric sample to be tested to the fixing head using the waterproof fabric fixing assembly. Reliable connection can be ensured by bolt tightening or adhesive bonding. A displacement sensor installed in the sliding groove measures the sliding plate's movement distance in real time and outputs the data to an external processing system. By comparing the sliding plate displacement corresponding to testing plates with different roughness, the operator can quantitatively evaluate the anti-slip performance of the waterproof fabric on different simulated surfaces—the greater the displacement, the greater the friction between the waterproof fabric and the testing plate, and the better the anti-slip performance; conversely, the smaller the displacement, the worse the anti-slip performance.After one test is completed, the moving component moves the waterproof cloth sample back. The sliding plate automatically returns to its initial position under the repulsive force of magnetic block one and magnetic block two. At this time, the magnetic cylinder moves away from magnetic block one again, the repulsive force decreases, and positioning pin one and positioning pin two are dislodged from positioning hole one and positioning hole two respectively. The test plate is automatically released, and the operator can easily replace the test plate with another roughness and repeat the above steps to perform the next test.

[0030] This solution offers several advantages. First, by using magnetic blocks one and two to create a repulsive arrangement, the sliding plate forms a non-contact floating support within the groove, avoiding the fatigue, jamming, and nonlinear force issues of traditional mechanical springs. This ensures the sensitivity and long-term stability of friction force detection, and the sliding plate automatically resets after the external force is removed, requiring no additional power. Second, the installation and removal of the detection plate are extremely simple. Utilizing the repulsive force change between the magnetic cylinder and magnetic block one, along with the elasticity of the reset spring, the positioning column automatically extends and retracts. Simultaneously, the piston holes on both sides are connected through a vent hole, allowing the movement of one magnetic cylinder to drive the synchronous movement of both positioning columns, simultaneously locking or releasing both sides of the detection plate. The entire process requires no tools or manual intervention; replacing a detection plate simply requires pushing in or pulling out the sliding plate, significantly improving detection efficiency. Third, this linkage positioning structure is compact and reliable, utilizing pneumatic power transmission to avoid complex electrical or hydraulic control components, reducing manufacturing costs and failure rates. Fourth, the displacement sensor directly measures the moving distance of the sliding plate. This distance has a clear correlation with the friction between the waterproof fabric and the testing plate. Data acquisition allows for a quantitative evaluation of the anti-slip performance, which is more objective and accurate than traditional manual judgment. Fifth, the moving component uses a transmission method combining a lead screw and a guide rail, ensuring that the waterproof fabric sample moves uniformly and smoothly above the testing plate. This realistically simulates the relative motion between the waterproof fabric and the contact surface in actual use, providing valuable practical guidance. Sixth, the waterproof fabric fixing component uses an electric push rod, allowing for flexible adjustment of the fixing head height and clamping force according to the thickness and material of the waterproof fabric. It can also be fixed using bolts or glue, offering strong adaptability. Seventh, throughout the testing process, the locking and unlocking of the testing plate are automatically linked to the movement state of the sliding plate—when the sliding plate is in the testing position, the positioning pin reliably inserts; when the sliding plate resets, the positioning pin automatically retracts. This ensures that the testing plate will not loosen due to vibration or impact during testing and facilitates easy replacement of the testing plate by operators, achieving a balance between safety and convenience.

[0031] In another embodiment of the present invention, the moving component includes a moving frame 2, a motor 6 and a lead screw 5. The machine base 1 is provided with a guide rail that cooperates with the moving frame 2. The two ends of the moving frame 2 are provided with threaded holes that cooperate with the lead screw 5. The lead screw 5 is rotatably mounted on the machine base 1. The motor 6 is connected to the lead screw 5 in a transmission connection.

[0032] In another embodiment of the present invention, the waterproof cloth fixing assembly includes an electric push rod 22 and a fixing head 23. One end of the electric push rod 22 is fixedly connected to the movable frame 2, and the other end is fixedly connected to the fixing head 23. The waterproof cloth to be tested is fixed to the fixing head 23 by bolts or glue.

[0033] The above description only illustrates the preferred embodiments of the present invention and should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. All modifications made within the scope of the independent claims of this invention are also within the scope of protection of this invention.

Claims

1. A device for testing the performance of waterproof fabric, characterized in that, Includes machine base (1), moving components, waterproof cloth fixing components and detection components; The moving component is installed on the machine base (1), and the waterproof cloth fixing component is set on the moving component. The waterproof cloth fixing component is used to fix the waterproof cloth to be tested. The testing component includes a mounting base (4), a magnetic block one (9), a magnetic block two (10), a sliding plate (7), and several testing plates (3) with different surface roughness. The mounting base (4) is provided with a sliding groove (8). The sliding plate (7) is movably installed in the sliding groove (8). The testing plate (3) is detachably installed on the sliding plate (7). The magnetic block one (9) is set on the groove wall of the slide (8), and the magnetic block two (10) is set on the sliding plate (7). The magnetic block one (9) and the magnetic block two (10) are set in opposition to each other. The groove (8) is equipped with a displacement sensor for measuring the moving distance of the sliding plate (7). The anti-slip performance of the waterproof cloth under different roughness conditions is detected by measuring the moving distance of the sliding plate (7) through the displacement sensor.

2. The waterproof fabric performance testing device according to claim 1, characterized in that, The sliding plate (7) is provided with an installation groove, which matches the shape and size of the detection plate (3). The sliding plate (7) can be detachably installed in the installation groove.

3. The waterproof fabric performance testing device according to claim 2, characterized in that, The sliding plate (7) is also provided with a positioning component for positioning the inspection plate.

4. The waterproof fabric performance testing device according to claim 3, characterized in that, The positioning assembly includes a magnetic cylinder (12), a positioning post (15), and a reset spring (14). The sliding plate (7) is provided with a piston hole (13) that cooperates with the magnetic cylinder (12) and a movable hole that cooperates with the positioning post (15). The piston hole (13) is connected to the movable hole. The magnetic cylinder (12) is fixedly connected to the positioning post (15). The reset spring (14) is fitted on the positioning post (15). One end of the reset spring (14) is fixedly connected to the magnetic cylinder (12), and the other end is fixedly connected to the bottom of the piston hole (13). The side of the detection plate (3) is provided with a positioning hole (16) that cooperates with the positioning post (15). The magnetic cylinder (12) and the magnetic block (9) are mutually repulsive.

5. The waterproof fabric performance testing device according to claim 4, characterized in that, The positioning component also includes an auxiliary positioning mechanism for positioning the other side of the detection plate (3).

6. The waterproof fabric performance testing device according to claim 5, characterized in that, The auxiliary positioning mechanism includes a piston head (18), a second positioning post (20), and a second return spring (19). The sliding plate (7) is provided with a piston hole (17) that cooperates with the piston head (18) and a movable hole (17) that cooperates with the second positioning post (20) at one end away from the piston hole (13). The piston hole (17) and the movable hole (17) are connected. The piston head (18) is fixedly connected to the second positioning post (20). The second return spring (19) is fitted on the second positioning post (20). One end of the second return spring (19) is fixedly connected to the piston head (18), and the other end is fixedly connected to the bottom of the second piston hole (17). The detection plate (3) is provided with a second positioning hole (21) that cooperates with the second positioning post (20) on the side away from the first positioning hole (16). The first piston hole (13) and the second piston hole are connected through a vent hole (11).

7. The waterproof fabric performance testing device according to claim 6, characterized in that, One end of the vent (11) is connected to the piston hole one (13) near the bottom of the hole, and the other end is connected to the piston hole two far (17) away from the movable hole two (17).

8. The waterproof fabric performance testing device according to claim 1, characterized in that, The moving component includes a moving frame (2), a motor (6) and a lead screw (5). The machine base (1) is provided with a guide rail that cooperates with the moving frame (2). The two ends of the moving frame (2) are provided with threaded holes that cooperate with the lead screw (5). The lead screw (5) is rotatably mounted on the machine base (1). The motor (6) is connected to the lead screw (5) in a transmission connection.

9. The waterproof fabric performance testing device according to claim 1, characterized in that, The waterproof cloth fixing assembly includes an electric push rod (22) and a fixing head (23). One end of the electric push rod (22) is fixedly connected to the moving frame (2), and the other end is fixedly connected to the fixing head (23). The waterproof cloth to be tested is fixed to the fixing head (23) by bolts or glue.

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