Flame-retardant testing device for electromagnetic wire

Abstract

The utility model discloses a flame-retardant testing device for an electromagnetic wire, which belongs to the technical field of flame-retardant testing devices and comprises a testing device body, a testing box is arranged on the testing device body, a telescopic cylinder is arranged in the testing box, an igniter is arranged at the output end of the telescopic cylinder, and an adjustable fixing component is arranged at the top of the testing box. The purification and exhaust assembly is clamped to the upper surface of the test box, the adjustable fixing assembly comprises a threaded rod, the threaded rod is in threaded connection to the test box, a fixing plate is rotationally installed at the other end of the threaded rod, and a hand wheel is installed at the other end of the threaded rod. The sample is prevented from being directly discharged into the air to influence the atmospheric quality, meanwhile, the purification material is convenient to replace, the position of the sample can be flexibly adjusted to be aligned with the flame action position of the igniter through the adjustable fixing assembly, the sample can be ensured not to displace or loosen in the test process, and the influence on the test is avoided.

Description

Technical Field

[0001] This utility model relates to a flame retardant testing device for electromagnetic wires, belonging to the technical field of flame retardant testing devices. Background Technology

[0002] As a crucial component of electrical equipment, electromagnetic wire is widely used in motors, transformers, generators, and other fields. Its flame-retardant properties directly affect the safety and reliability of these electrical devices. Under abnormal conditions such as high temperature, short circuit, or overload, electromagnetic wire may overheat and ignite, potentially causing a fire. Therefore, testing and evaluating the flame-retardant properties of electromagnetic wire is essential for ensuring its safe use. Currently, flame-retardant testing devices are mainly used to evaluate the combustion characteristics of materials under flame conditions, including parameters such as burning time, burning length, and whether dripping materials ignite. However, existing flame-retardant testing devices cannot flexibly align the sample position with the flame position of the igniter during testing. Some devices have a purification function, but the replacement design of the purification material is unreasonable, and the replacement process is cumbersome and complex, requiring significant time and manpower.

[0003] For example, in the announcement number CN220690874U, a flame retardant testing device includes a base, a cover fixedly connected to the upper surface of the base, a hinged movable door on the open side of the cover, an insertion port for inserting a flame gun on the side of the cover adjacent to the movable door, an outlet pipe for connecting to a flue gas purification system installed on the upper part of the side of the cover away from the insertion port, a water box for storing water inside the cover installed on the upper surface of the base, a vertically arranged electric push rod on the side of the water box away from the insertion port, the cylinder end of the electric push rod being fixedly connected to the upper surface of the base, a movable curved rod that can be moved into the water box being fixedly connected to the movable end of the electric push rod, and a positioning sleeve for limiting the position of a plastic product sample being fixedly connected to the end of the curved rod away from the electric push rod. This utility model has the following beneficial effects: it facilitates the cleaning of dripping plastic product waste.

[0004] The aforementioned flame retardant testing device cannot flexibly position the sample relative to the flame of the igniter during use, and lacks effective exhaust purification function, resulting in the direct emission of harmful gases into the air, polluting the environment and endangering the health of operators. Utility Model Content

[0005] The purpose of this invention is to provide a flame-retardant testing device for electromagnetic wires in order to solve the above problems. The device can fix the electromagnetic wires to prevent the sample from moving during the test and affecting the test, and can also purify the gas generated during the test, making it easy to replace the purification material.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a flame-retardant testing device for electromagnetic wire, comprising a testing device body, a testing box on the testing device body, a telescopic cylinder inside the testing box, an igniter at the output end of the telescopic cylinder, an adjustable fixing component on the top of the testing box, and a purification exhaust component snapped onto the upper surface of the testing box.

[0007] Preferably, in order to rotate the threaded rod, the adjustable fixing assembly includes a threaded rod that is threadedly connected to the test box, a fixing plate that is rotatably mounted on the other end of the threaded rod, and a handwheel that is mounted on the other end of the threaded rod.

[0008] Preferably, in order to limit the position of the fixing plate, a limiting rod is connected to the fixing plate on both sides of the threaded rod, and the limiting rod is inserted into the test box.

[0009] Preferably, in order to fix the electromagnetic wire, a fixing bracket is snapped onto the fixing plate, a screw is connected to the fixing bracket, a pressure plate is inserted into the screw, a nut is threaded onto the screw, the pressure plate and the fixing bracket are pressed together by the nut, and a placement groove is formed on the fixing bracket and the pressure plate.

[0010] Preferably, in order to install the purified exhaust assembly, the test chamber is provided with mounting holes, and a door is rotatably mounted on the test chamber.

[0011] Preferably, in order to make the exhaust hood more tightly connected, the purified exhaust assembly includes an exhaust hood that is plugged into the mounting hole, and the lower outer side of the exhaust hood is covered with a rubber edge.

[0012] Preferably, in order to purify the gas generated during the test, a placement frame is threadedly connected to the lower end of the exhaust hood, and the placement frame contains gas purification material.

[0013] Preferably, in order to discharge the purified gas, the placement frame and the exhaust hood are provided with exhaust holes arranged in an array.

[0014] The beneficial effects of this utility model are: the adjustable fixing component can flexibly adjust the position of the sample to align with the flame action position of the igniter, ensuring that the sample will not shift or loosen during the test, thus avoiding affecting the test; the purification exhaust component can purify and discharge some harmful gases produced by the test combustion, preventing them from being directly emitted into the air and affecting air quality, while also facilitating the replacement of purification materials. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the present invention from the left side view.

[0016] Figure 2 This is a structural schematic diagram of the present invention from the right side view.

[0017] Figure 3 This is a structural schematic diagram of the present invention from a downward viewing angle.

[0018] Figure 4 This is a partial structural schematic diagram of the present invention.

[0019] Figure 5 This is a schematic diagram of the adjustable fixing component of this utility model.

[0020] Figure 6 This is a schematic diagram of the structure of the exhaust purification component of this utility model.

[0021] In the diagram: 1. Test device body; 2. Test box; 3. Telescopic cylinder; 4. Igniter; 5. Adjustable fixing assembly; 501. Threaded rod; 502. Fixing plate; 503. Handwheel; 504. Limiting rod; 505. Fixing frame; 506. Screw; 507. Nut; 508. Pressure plate; 509. Placement slot; 6. Purification exhaust assembly; 601. Exhaust hood; 602. Rubber edge; 603. Placement frame; 604. Exhaust port; 7. Mounting hole; 8. Box door. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-6 As shown, a flame retardant testing device for electromagnetic wires includes a testing device body 1, a testing chamber 2 on the testing device body 1, a telescopic cylinder 3 inside the testing chamber 2, and an igniter 4 at the output end of the telescopic cylinder 3. The position of the igniter 4 is adjusted by extending and retracting the telescopic cylinder 3. An adjustable fixing component 5 is provided on the top of the testing chamber 2 to ensure that the sample will not shift or loosen during the test. A purification exhaust component 6 is snapped onto the upper surface of the testing chamber 2. Smoke and harmful gases are discharged after being treated by the purification gas material, reducing harm to the environment and operators.

[0024] The adjustable fixing assembly 5 includes a threaded rod 501, which is threadedly connected to the test chamber 2. A fixing plate 502 is rotatably mounted on the other end of the threaded rod 501, and a handwheel 503 is mounted on the other end. Limiting rods 504 are connected to the fixing plate 502 on both sides of the threaded rod 501, and the limiting rods 504 are inserted into the test chamber 2. A fixing frame 505 is snapped onto the fixing plate 502, and a screw 506 is connected to the fixing frame 505. A pressure plate 508 is inserted into the screw 506, and a nut 507 is threaded onto the screw 506. The pressure plate 508 and the fixing frame 505 are pressed together by the nut 507. The fixed frame 505 and the pressure plate 508 are provided with placement slots 509. After separating the fixed frame 505 from the fixed plate 502, the electromagnetic wire sample to be tested is first placed in the placement slot 509 of the fixed frame 505 to ensure that the sample is centered and stable. Tighten the nut 507 on the screw 506 to press the electromagnetic wire sample firmly between the pressure plate 508 and the fixed frame 505, ensuring that the sample will not shift or loosen during the test. Rotate the threaded rod 501 by the handwheel 503 to drive the fixed plate 502 to move along the direction of the limit rod 504, and adjust the height of the fixed frame 505 so that the electromagnetic wire sample is aligned with the flame action position of the igniter 4.

[0025] The test chamber 2 is provided with a mounting hole 7, and a door 8 is rotatably mounted on the test chamber 2. The purification exhaust assembly 6 includes an exhaust hood 601, which is plugged into the mounting hole 7. The lower outer side of the exhaust hood 601 is covered with a rubber edge 602, and a placement frame 603 is threadedly connected to the lower end of the exhaust hood 601. Purification gas material is placed inside the placement frame 603. The purification gas material needs to be replaced after long-term use, otherwise the purification effect will be affected. The placement frame 603 and the exhaust hood 601 are provided with exhaust holes 604 arranged in an array. After the smoke and harmful gases are treated by the purification gas material, they are discharged through the exhaust holes 604, reducing the harm to the environment and operators. The exhaust hood 601 can be manually removed, and the placement frame 603 can be rotated to separate the placement frame 603 from the exhaust hood 601, thereby facilitating the replacement of the purification gas material inside the placement frame 603.

[0026] In use, the fixing frame 505 is separated from the fixing plate 502. First, the electromagnetic wire sample to be tested is placed in the placement slot 509 of the fixing frame 505, ensuring the sample is centered and stable. The nut 507 on the screw 506 is tightened, causing the pressure plate 508 and the fixing frame 505 to press the electromagnetic wire sample firmly, ensuring the sample will not shift or loosen during testing. The threaded rod 501 is rotated via the handwheel 503, causing the fixing plate 502 to move along the direction of the limiting rod 504. The height of the fixing frame 505 is adjusted so that the electromagnetic wire sample is aligned with the flame action position of the igniter 4. The fixing frame 505 is then engaged with the fixing plate 502. The door 8 of the test chamber 2 is closed to ensure a sealed testing environment. The telescopic cylinder 3 is activated, pushing the igniter 4 to the predetermined position, igniting the flame and applying it to the electromagnetic wire. The sample undergoes a flame retardancy test. During the test, a flame is applied to the electromagnetic wire sample, and the combustion of the sample is observed, including the burning time, burning length, and whether the dripping material ignites the material below. Relevant data are recorded to evaluate its flame retardancy performance. During the test, the smoke and harmful gases produced by combustion are discharged through the exhaust hood 601. The rubber edge 602 at the lower end of the exhaust hood 601 is tightly fitted with the mounting hole 7 of the test chamber 2 to ensure that the gas does not leak. The placement frame 603 inside the exhaust hood 601 is filled with gas purification materials such as activated carbon or chemical adsorbents. After the test, the igniter 4 is turned off and the operation of the telescopic cylinder 3 is stopped. The chamber door 8 is opened, the nut 507 is loosened, the pressure plate 508 is removed, and the tested electromagnetic wire sample is taken out. Based on the test results, it is determined whether the flame retardancy performance of the sample meets the relevant standard requirements.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] 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. A flame-retardant testing device for electromagnetic wire, characterized in that: The test device includes a test device body (1), a test box (2) is provided on the test device body (1), a telescopic cylinder (3) is provided inside the test box (2), an igniter (4) is provided at the output end of the telescopic cylinder (3), an adjustable fixing component (5) is provided on the top of the test box (2), and a purification exhaust component (6) is snapped onto the upper surface of the test box (2).

2. The flame-retardant testing device for electromagnetic wires according to claim 1, characterized in that: The adjustable fixing component (5) includes a threaded rod (501), which is threadedly connected to the test box (2). A fixing plate (502) is rotatably installed at the other end of the threaded rod (501), and a handwheel (503) is installed at the other end of the threaded rod (501).

3. The flame-retardant testing device for electromagnetic wires according to claim 2, characterized in that: On the fixed plate (502), and on both sides of the threaded rod (501), there are limit rods (504), which are connected to the test box (2).

4. The flame-retardant testing device for electromagnetic wires according to claim 3, characterized in that: A fixing bracket (505) is snapped onto the fixing plate (502), a screw (506) is connected to the fixing bracket (505), a pressure plate (508) is inserted into the screw (506), a nut (507) is threaded onto the screw (506), the pressure plate (508) and the fixing bracket (505) are pressed together by the nut (507), and a placement groove (509) is provided on the fixing bracket (505) and the pressure plate (508).

5. The flame-retardant testing device for electromagnetic wires according to claim 1, characterized in that: The test box (2) is provided with mounting holes (7), and a box door (8) is rotatably mounted on the test box (2).

6. The flame-retardant testing device for electromagnetic wires according to claim 5, characterized in that: The purification exhaust assembly (6) includes an exhaust hood (601), which is plugged into the mounting hole (7), and the lower outer side of the exhaust hood (601) is covered with a rubber edge (602).

7. The flame-retardant testing device for electromagnetic wires according to claim 6, characterized in that: The lower end of the exhaust hood (601) is threadedly connected to a placement frame (603), and the placement frame (603) contains gas purification material.

8. The flame-retardant testing device for electromagnetic wires according to claim 7, characterized in that: The placement frame (603) and the exhaust hood (601) are provided with exhaust holes (604) arranged in an array.

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