A waterproof fabric rain detection device

Abstract

The utility model relates to waterproof detection field discloses a kind of waterproof fabric rain detection devices, including fuselage, height and angle adjusting assembly and clamping assembly. The front end of fuselage is obliquely provided with workbench;Height adjusting assembly is vertically installed in fuselage, and its guide rail is realized by sliding plate and bolt assembly height stepless adjustment and locking of spray system;Angle adjusting assembly is realized by spherical hinge connection universal angle adjustment and locking of spray head;Clamping assembly is located in workbench, and elastic boss is equipped on its clamping base, and it is cooperated with the turnover pressing plate and magnetic attraction lock catch with through hole, the quick, flat clamping and self-locking of fabric can be realized.The utility model solves the problems that the existing device spray condition is not adjustable, sample fixing is easy to produce wrinkle and operation is complicated, and has the advantages of accurate testing, high efficiency, wide applicability and simple operation.

Description

Technical Field

[0001] This utility model relates to the field of waterproof testing, and in particular to a rain testing device for waterproof fabrics. Background Technology

[0002] The waterproof performance of waterproof fabrics is one of the key indicators for measuring their quality, especially in outdoor clothing, tents, bags, and other fields. To verify the waterproof effect of the fabric, it is necessary to test whether there are problems such as water seepage or moisture penetration by simulating real rain conditions (such as continuous water spray). Therefore, waterproof fabric rain test devices have become important equipment in fabric research and development, production, and quality control.

[0003] Currently, devices used for testing the rain performance of waterproof fabrics are typically simple in structure, mainly consisting of a support platform for fixing the fabric and a spray head located above it. For fabric fixation, clamps or similar rigid clamping structures are often used to directly clamp the fabric to the edge of the sample box or support platform. The spray system is often fixed in place, with its height and spray angle not adjustable, only capable of a single vertical spray mode.

[0004] However, existing technologies have the following significant drawbacks in practical applications: First, the method of fixing the fabric with clamps makes it difficult to ensure that the fabric is tensioned evenly and flat. During the fixing process, wrinkles are easily generated at the edges of the fabric, which can lead to water accumulation or abnormal water flow in the area during testing, seriously affecting the accuracy and reliability of the test results. Second, the spray system lacks flexible adjustment functions and cannot simulate real natural conditions such as oblique rainfall at different heights and angles, which greatly limits the testing range and applicability of the device and makes it difficult to meet the evaluation needs of diverse testing standards and practical application scenarios. Utility Model Content

[0005] This invention provides a rain detection device for waterproof fabrics, which solves the problems of easy wrinkling at the edges of fabrics and inflexible adjustment in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is a waterproof fabric rain detection device, comprising: Body, height adjustment assembly, and clamping assembly; The main body of the device serves as its support structure, with a worktable tilted at its front. A height adjustment assembly is vertically mounted on the side of the main body, with its top supporting the spray system. A clamping assembly is mounted on the tilted worktable to tension and secure the waterproof fabric to be tested.

[0007] The height adjustment assembly includes a guide rail, a sliding plate, and a mounting plate. The guide rail is a long strip profile, vertically connected to the machine body, with a long slot along its length on its front side. The sliding plate is a rectangular plate that directly mates with the guide rail and can slide vertically along it; a corresponding slot is also provided on its surface. When the sliding plate moves to the predetermined height, it is fixed in place by a set of bolts passing through the slots between the sliding plate and the guide rail and locking them in place. A mounting plate is fixed to the front of the sliding plate to support the angle adjustment assembly. The angle adjustment assembly includes a ball joint, a ball head, and a spray head. The ball joint is fixed to the surface of the mounting plate facing the worktable. The ball head and the upper end of the spray head are connected as one piece and nested within the ball joint, forming a ball joint connection; a clamping bolt for locking the ball head is screwed into the side of the ball joint. The spray head is connected to an external water pipe and pump system through its top water inlet.

[0008] The clamping assembly includes a clamping base, a rotating shaft, a pressure plate, and a magnetic latch. The bottom of the clamping base is fixed to the inclined surface of the worktable, and a boss is provided on its top surface. This boss is an elastic component with a U-shaped arc surface at its top. The pressure plate is a circular pressure block whose cross-sectional shape is adapted to the U-shaped arc surface of the boss. The pressure plate is rotatably connected to the clamping base via a rotating shaft. A through hole is provided on the pressure plate, which fits precisely onto the boss when the pressure plate is rotated and fastened onto the clamping base. On the clamping assembly, opposite to the rotating shaft, a magnetic latch is provided. This magnetic latch consists of a pair of mutually attracting magnets, which are respectively embedded in corresponding positions on the pressure plate and the clamping base.

[0009] This invention provides a rain testing device for waterproof fabrics. By setting up a spray assembly with adjustable height and angle, it achieves accurate simulation of rainfall height and angle, significantly improving the scientific nature and applicability of the testing conditions. At the same time, it adopts an innovative flip-type elastic clamping mechanism to replace the traditional clamping method, realizing quick and flat clamping of samples. This not only effectively eliminates wrinkles and ensures testing accuracy, but also avoids damage to the samples. The overall structure has significant advantages such as convenient operation, high efficiency, and good reliability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the waterproof fabric rain test device of this utility model; Figure 2 This is a front view of the waterproof fabric rain detection device of this utility model; Figure 3 This is a schematic diagram of the angle adjustment component of the waterproof fabric rain detection device of this utility model; Figure 4 This is a schematic diagram of the clamping component structure of the waterproof fabric rain detection device of this utility model.

[0011] Explanation of reference numerals in the attached figures: Airframe; 110, Worktable; Height adjustment assembly; 210, guide rail; 220, slide plate; 221, fixing bolt; 222, nut; 223, washer; 224, mounting plate; 230, angle adjustment assembly; 231, water inlet; 232, ball socket; 233, ball head; 234, clamping bolt; 235, spray head; Clamping assembly; 310, pivot; 320, pressure plate; 330, clamping base; 340, magnetic latch; 350, boss. Detailed Implementation

[0012] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0013] like Figures 1 to 4 As shown in the figure, this utility model provides a waterproof fabric rain testing device. The main structure of the device includes a body 100, a height adjustment component 200 installed on the body 100, and a clamping component 300 for quickly fixing samples. The body 100 serves as the main support for the entire device and is constructed from robust profiles through welding or assembly to ensure overall stability. A worktable 110 is inclined at the front of the body 100, preferably at an angle of 45° to 60° to the horizontal plane. This inclined design simulates the inclined rain-receiving surface commonly found in outdoor clothing, tents, etc., and also facilitates the natural sliding of water droplets after spraying, making it easier to observe the fabric's waterproof performance and water flow trajectory. The height adjustment component 200 is vertically installed at the rear or side of the body 100, with its top supporting the spraying system. The clamping component 300 is installed on the inclined worktable 110 and is used to tension and fix the waterproof fabric to be tested. In one specific embodiment, the height adjustment assembly 200 includes a guide rail 210, a sliding plate 220, a fixing bolt 221, a nut 222, a washer 223, and a mounting plate 224. The guide rail 210 is a rectangular aluminum profile or steel rail, securely and vertically connected to the body 100 by bolts. The front of the guide rail 210 has evenly spaced elongated slots along its length. The sliding plate 220 is a rectangular plate that directly mates with the guide rail 210, allowing for smooth movement along the vertical direction of the guide rail 210. The sliding plate 220 has corresponding slots on its surface. When the sliding plate 220 moves to a predetermined height, a bolt assembly passes through the slots of the sliding plate 220 and the guide rail 210, and is locked in place by the nut 222, thus firmly fixing the sliding plate 220 in its current position. The bolt assembly preferably includes a fixing bolt 221, a washer 223, and a nut 222. The use of shim 223 increases the contact area, making the locking more reliable and preventing loosening during vibration. This design allows for height adjustment and reliable locking to meet the rainfall height requirements of different testing standards. A mounting plate 224 is fixed to the front of the slide plate 220 to support the angle adjustment assembly 230. The angle adjustment assembly 230 includes a ball socket 232, a ball head 233, a clamping bolt 234, and a spray head 235. The ball socket 232 is fixed to the surface of the mounting plate 224 facing the worktable 110. The ball head 233 is integrally connected to the upper end of the spray head 235 and nested within the ball socket 232, forming a ball joint connection. The clamping bolt 234 is screwed into the side of the ball socket 232. When the spray angle needs to be adjusted, the clamping bolt 234 is loosened, allowing the ball head 233 to rotate omnidirectionally within the ball socket 232, thereby causing the spray head 235 to change angle in space. After the angle is determined, tighten the clamping bolt 234, which presses against the ball head 233 at its end, using friction to lock it firmly in place, ensuring angle stability during spraying. The spray head 235 is connected to the external water pipe and pump system through the water inlet 231 at its top; The clamping assembly 300 is designed to achieve rapid and flat sample clamping, and includes a clamping base 330, a rotating shaft 310, a pressure plate 320, and a magnetic latch 340. The bottom of the clamping base 330 is reliably fixed to the inclined surface of the worktable 110 by welding or bolts. A boss 350 is provided on the top surface of the clamping base 330. This boss 350 is an elastic component, its core made of high-density rubber or polyurethane, and its top profile is designed as a U-shaped arc surface. The pressure plate 320 is a circular pressure block, its cross-sectional shape adapted to the U-shaped arc surface of the boss 350. The pressure plate 320 is rotatably connected to the clamping base 330 via a rotating shaft 310. Specifically, the rotating shaft 310 passes through a shaft hole at one end of the clamping base 330 and the pressure plate 320, allowing the pressure plate 320 to rotate around the rotating shaft 310, achieving a "flip-type" opening and closing. The pressure plate 320 has through holes. When the pressure plate 320 is rotated and fastened onto the clamping base 330, the through hole fits precisely onto the boss 350. Because the boss 350 is elastic, it undergoes compressive deformation when the pressure plate 320 is engaged, preventing indentations or damage to the sample and creating a reliable interference fit for securely fixing the fabric edge. To provide additional locking force in the engaged state and prevent the pressure plate 320 from accidentally springing open due to vibration, a magnetic latch 340 is provided on the clamping assembly 300 on the opposite side of the pivot 310. The magnetic latch 340 consists of a pair of mutually attracting magnets, which are respectively embedded in corresponding positions on the pressure plate 320 and the clamping base 330. The working process of this utility model is as follows: The working process of a waterproof fabric rain test device is divided into a sample fixing stage, a spray adjustment stage, and a post-processing stage. Sample fixing stage: First, the operator lays the waterproof fabric sample to be tested flat on the inclined worktable 110, initially positioning its lower edge. Next, the clamping assembly 300 is operated: the pressure plate 320 is flipped upwards to open, the fabric is placed on the top surface of the clamping base 330, and it is ensured that it covers the elastic boss 350. Then, the pressure plate 320 is rotated around the pivot 310 to close it, so that its through hole fits onto the boss 350; Spray Adjustment Stage: After the sample is fixed, the operator precisely adjusts the spray system according to the test standards or experimental requirements. First, height adjustment is performed: loosen the fixing bolt 221 to allow the slide plate 220 to slide freely along the vertical guide rail 210. After adjusting the spray head 235 to the predetermined height from the sample surface, tighten the fixing bolt 221 again, using the bolt assembly (including washer 223 and nut 222) to securely lock the slide plate 220 onto the guide rail 210. Next, angle adjustment is performed: loosen the clamping bolt 234 on the side of the ball socket 232. At this time, the ball head 233, which is integrated with the spray head 235, can rotate omnidirectionally within the ball socket 232, thereby adjusting the spray head 235 to the required spray angle (e.g., vertically downward or simulating oblique rainfall). After the angle is determined, tighten the clamping bolt 234 again, using friction to lock the ball head 233, ensuring the stability of the spray angle. After all adjustments are completed, the external water pump system is started. Water enters from the inlet 231 and is then evenly sprayed onto the sample surface fixed to the workbench 110 through the spray head 235 to simulate a real rain environment and begin the formal rainproof performance test. Post-processing stage: During the spray test, the operator can visually observe the behavior of water on the fabric surface, such as wetting, spreading, penetrating, or forming water droplets and rolling off. The above-disclosed embodiments are merely specific examples of this utility model. However, the embodiments of this utility model are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A waterproof fabric rain testing device, comprising a body (100) and a worktable (110) disposed on the body (100), characterized in that: It also includes a height adjustment assembly (200), an angle adjustment assembly (230), and a clamping assembly (300); the height adjustment assembly (200) is vertically mounted on the body (100) and includes a guide rail (210) and a slide plate (220). The slide plate (220) is slidably connected to the guide rail (210) and locked in place by a bolt assembly; the angle adjustment assembly (230) is mounted on the mounting plate (224) of the slide plate (220), and includes a ball socket (232), a ball head (233), and a spray head (235). The ball socket (232) is fixed to the mounting plate (224), and the ball head (233) is connected to and nested within the ball socket (232). The side of the ball socket (232) is provided with a useful... The clamping bolt (234) is used to lock the ball head (233); the clamping assembly (300) is installed on the workbench (110) and includes a clamping base (330), a rotating shaft (310), a pressure plate (320) and a magnetic latch (340); the clamping base (330) is fixed to the workbench (110) and has a boss (350) on its top surface; the pressure plate (320) is rotatably connected to the clamping base (330) through the rotating shaft (310), and the pressure plate (320) has a through hole. When the pressure plate (320) is engaged, the through hole is fitted onto the boss (350); the magnetic latch (340) is disposed on the clamping base (330) and the pressure plate (320) and is located on the opposite side of the rotating shaft (310).

2. The waterproof fabric rain detection device according to claim 1, characterized in that: The boss (350) is an elastic component.

3. The waterproof fabric rain detection device according to claim 2, characterized in that: The boss (350) is made of high-density rubber or polyurethane.

4. The waterproof fabric rain detection device according to claim 1, characterized in that: The top profile of the boss (350) is a U-shaped arc surface, and the cross-sectional shape of the pressure plate (320) is adapted to the U-shaped arc surface.

5. The waterproof fabric rain detection device according to claim 1, characterized in that: The bolt assembly includes a fixing bolt (221), a washer (223), and a nut (222); the guide rail (210) and the slide plate (220) are respectively provided with elongated slots for the fixing bolt (221) to pass through.

6. The waterproof fabric rain detection device according to claim 1, characterized in that: The angle between the worktable (110) and the horizontal plane is 45° to 60°.

7. The waterproof fabric rain detection device according to claim 1, characterized in that: The magnetic latch (340) consists of a pair of magnets that attract each other, which are respectively embedded in the corresponding positions of the pressure plate (320) and the clamping base (330).

8. The waterproof fabric rain detection device according to claim 1, characterized in that: The cross-section of the guide rail (210) is rectangular.

9. The waterproof fabric rain detection device according to claim 1, characterized in that: The skateboard (220) is a rectangular board.

10. A waterproof fabric rain detection device according to claim 9, characterized in that: The pressure plate (320) is a circular pressure block.

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