Glowing filament tester for testing flame retardant property of plastic

Abstract

The utility model relates to the technical field of glowing filament testers, in particular to a glowing filament tester for testing the flame retardant property of plastics. The problems that after ignition, smoke gas polluting air is generated, the working environment is affected, the air is polluted, and the health of operators is harmed are solved. When the design is used, the exhaust fan is started to suck external air into the interior through the air inlet hole, the activated carbon filter block is arranged in the threaded cover to filter gas, internal smoke is discharged through the exhaust hole in the threaded cover, the design is simple in structure, smoke gas generating polluted air can be filtered, air pollution is avoided, and the service life of the exhaust fan is prolonged. The feeding assembly is arranged on the base of the heating mechanism, the heating mechanism is driven to automatically move under the gravity of the balancing weight to conduct the plastic flame retardant property test, the structure is simple, movement of the plastic flame retardant property test can be achieved, operation is convenient, and the stable effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a glowing filament tester for testing the flame retardant performance of plastics. BACKGROUND

[0002] The glowing filament tester is a testing instrument for material combustion test, which is suitable for ignition hazard test of electrical and electronic products, household appliances and their materials, and is also used for flameless ignition test to determine the glowing ignition temperature and flammability and fire resistance index of relevant materials. Currently, the glowing filament test uses a simulation test project of flameless ignition source: an electric heating wire with specified material and shape is heated to a test temperature by a large current for a certain period of time, and then the test product is vertically burned for a certain period of time under a specified pressure, and the ignition hazard of electrical and electronic equipment products is determined according to whether the test product and the bedding material burn or sustain the burning time; the ignition property, ignition temperature, flammability and flammability index of solid insulating materials and other solid combustible materials.

[0003] Currently, as customers have more stringent requirements for safety, the requirements for the glowing filament tester itself also become more demanding. The temperature of the glowing filament tester during work is 750-900℃, and a large amount of smoke will be generated when it contacts with plastics. After ignition, smoke gas with air pollution will be generated, which will not only affect the use of the glowing filament tester, but also make the working environment worse, pollute the air and harm the health of the workers. UTILITY MODEL CONTENT

[0004] (1) Technical problem to be solved

[0005] In order to solve the problem that smoke gas with air pollution will be generated after ignition, which will affect the working environment, pollute the air and harm the health of the operators.

[0006] (2) Technical scheme

[0007] The utility model discloses a technical scheme for a glowing filament tester for testing the plastic flame retardant performance, which comprises a glowing filament tester main body, a heating mechanism, a residue collection box, a smoke purification assembly and a feeding assembly. The heating mechanism is arranged on the upper surface of the glowing filament tester main body. The residue collection box is arranged below the heating mechanism on the surface of the glowing filament tester main body. The smoke purification assembly is arranged on the surface of the glowing filament tester main body. The feeding assembly is arranged between the heating mechanism and the glowing filament tester main body. When in use, external air is sucked into the interior through the air inlet hole by starting the exhaust fan, and the activated carbon filter block is arranged in the threaded cover for gas filtration. The internal flue gas is discharged through the exhaust hole on the threaded cover. This design is simple in structure and can filter the flue gas that pollutes the air, thus avoiding air pollution and protecting the health of the workers. The feeding assembly is arranged on the base of the heating mechanism. A pull rope is arranged on the surface of one side of the fixed seat during the process of testing the plastic flame retardant performance. A counterweight is tied to one end of the pull rope. Under the gravity of the counterweight, the roller on the fixed seat is driven to slide on the fixed rail, thus driving the heating mechanism to move by itself for testing the plastic flame retardant performance. The structure is simple, the plastic flame retardant performance test can be moved, and the operation is convenient. The guide block and the guide groove further improve the stability of the heating mechanism when it is used for testing the plastic flame retardant performance.

[0008] Further, the smoke purification assembly comprises a sealed box body, a sealed cover plate, an exhaust fan, a threaded cover, an exhaust hole, an activated carbon filter block and an air inlet hole. The sealed box body is mounted on the surface of the glowing filament tester main body. The sealed cover plate of L-shaped structure is hinged to the surface of the sealed box body. The exhaust fan is mounted in the two air inlet holes on the surface of the sealed cover plate. The air inlet holes are arranged on the two sides of the sealed box body. The threaded cover is arranged above the exhaust fan on the surface of the sealed cover plate. The exhaust hole is arranged on the surface of the threaded cover. The activated carbon filter block is arranged in the threaded cover. The activated carbon filter block is circular in structure and is matched with the inner wall of the threaded cover. The sealed cover plate is mounted on the sealed box body for sealing. The exhaust fan is mounted on the sealed cover plate. External air is sucked into the interior through the air inlet hole by starting the exhaust fan. The activated carbon filter block is arranged in the threaded cover for gas filtration. The internal flue gas is discharged through the exhaust hole on the threaded cover. This design is simple in structure and can filter the flue gas that pollutes the air, thus avoiding air pollution and protecting the health of the workers.

[0009] Further, the threaded ring is mounted on the air inlet hole on the surface of the sealed cover plate. The threaded cover is threadedly connected to the outer surface of the threaded ring. The threaded cover is fixed to the surface of the sealed cover plate through the threaded ring. The threaded ring can be used for mounting and dismounting the threaded cover on the sealed cover plate, which is convenient to use and can quickly realize the mounting and replacement of the activated carbon filter block.

[0010] Further, the surface of the sealing cover plate is provided with an observation window, which facilitates observation of the progress of the plastic flame retardant performance test.

[0011] Further, a handle is mounted on the surface of the sealing cover plate, which improves the convenience of use.

[0012] Further, strong magnetic blocks are mounted in the holes provided on the two sides of the surface of the sealing cover plate, and strong magnetic blocks are also mounted at positions corresponding to the holes provided on the surface of the sealing cover plate, the two strong magnetic blocks are magnetically attracted to each other, and the strong magnetic blocks mounted at positions corresponding to the sealing cover plate and the sealing box body are used to realize the closure between the sealing cover plate and the sealing box body.

[0013] Further, the feeding assembly comprises a fixed seat, a roller, a fixed rail, a pull rope, a counterweight, a guide block and a guide groove, the base of the heating mechanism is provided with the fixed seat, the two sides of the fixed seat are provided with the rollers, the surface of the main body of the hot wire tester is provided with two fixed rails matched with the width of the rollers, the rollers are clamped on the surface of the fixed rails, the fixed seat slides on the surface of the fixed rails through the rollers, one side of the fixed seat is provided with two pull ropes, the other end of the pull rope is provided with the counterweight, the pull rope slides on the surface of the pulley mounted on the surface of the main body of the hot wire tester, the surface of the fixed seat is provided with the guide block, the inner wall of the sealing box is provided with the guide groove matched with the guide block, and the guide block slides in the guide groove, the feeding assembly is arranged on the base of the heating mechanism, the pull rope is arranged on one side of the surface of the fixed seat during the test of the plastic flame retardant performance, one end of the pull rope is tied with the counterweight, the roller on the fixed seat slides on the fixed rail under the gravity of the counterweight, thereby driving the heating mechanism to move for the test of the plastic flame retardant performance, the structure is simple, the plastic flame retardant performance test can be moved, the use is convenient, and the stability of the heating mechanism during the test of the plastic flame retardant performance is further improved by cooperation of the guide block and the guide groove.

[0014] (3) Advantageous effects

[0015] Compared with the prior art, the utility model has the advantages that: when in use, external air is sucked into the interior through the air inlet hole by starting the air draught fan, and the activated carbon filter block is arranged in the threaded cover to filter the gas, the internal flue gas is discharged through the exhaust hole in the threaded cover, the design structure is simple, the flue gas that pollutes the air can be filtered, the air pollution is avoided, the health of the workers is protected, the feeding assembly is arranged on the base of the heating mechanism, the pull rope is arranged on one side of the surface of the fixed seat during the test of the plastic flame retardant performance, one end of the pull rope is tied with the counterweight, the roller on the fixed seat slides on the fixed rail under the gravity of the counterweight, thereby driving the heating mechanism to move for the test of the plastic flame retardant performance, the structure is simple, the plastic flame retardant performance test can be moved, the operation is convenient, and the stability of the heating mechanism during the test of the plastic flame retardant performance is further improved by cooperation of the guide block and the guide groove. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure of the utility model is shown.

[0017] Figure 2 The internal structure of the threaded cover in the utility model is shown.

[0018] Figure 3 The front view of the overall structure in the utility model is shown.

[0019] Figure 4 The opening and closing use structure of the sealing cover plate in the utility model is shown.

[0020] Figure 5 The utility model Figure 4 A structure enlarged display diagram in the utility model is shown.

[0021] Figure 6 The structure diagram of the feeding assembly in the utility model is shown.

[0022] The reference signs are explained: 1, a hot wire tester main body, 2, a heating mechanism, 3, a residue collection box, 4, a smoke purification assembly, 41, a sealing box body, 42, a sealing cover plate, 43, an exhaust fan, 44, a threaded ring, 45, a threaded cover, 46, an exhaust hole, 47, an activated carbon filter block, 48, an air inlet hole, 49, an observation window, 410, a handle, 411, a strong magnetic block, 5, a feeding assembly, 51, a fixed seat, 52, a roller, 53, a fixed rail, 54, a pull rope, 55, a counterweight, 56, a guide block, 57, a guide groove. DETAILED DESCRIPTION

[0023] The utility model is further explained in combination with the drawings and examples.

[0024] Example 1:

[0025] Please refer to Figures 1-6The utility model provides a kind of embodiment: a glowing filament tester for testing plastic flame-retardant performance, including glowing filament tester main body 1, including heating mechanism 2, residue collection tank 3, smoke purification component 4 and feeding assembly 5, heating mechanism 2 is arranged in the upper surface of glowing filament tester main body 1, the surface of glowing filament tester main body 1 is below heating mechanism 2 and is provided with residue collection tank 3, the surface of glowing filament tester main body 1 is provided with smoke purification component 4, heating mechanism 2 is provided with feeding assembly 5 between glowing filament tester main body 1, smoke purification component 4 includes sealed box 41, sealing cover plate 42, exhaust fan 43, threaded cover 45, exhaust hole 46, activated carbon filter block 47 and air inlet 48, the surface of glowing filament tester main body 1 is installed sealed box 41, the surface of sealed box 41 is hinged with the sealing cover plate 42 of L-shaped structure, two air holes in the surface of sealing cover plate 42 are all installed with exhaust fan 43, the both sides of sealed box 41 are all provided with air inlet 48, the surface of sealing cover plate 42 is above exhaust fan 43 and is provided with threaded cover 45, threaded cover 45 is provided with exhaust hole 46 on the surface, activated carbon filter block 47 is arranged in threaded cover 45, and activated carbon filter block 47 is circular structure and is adapted to the inner wall of threaded cover 45, by setting smoke purification component 4, sealing is carried out by installing sealing cover plate 42 on sealed box 41, and exhaust fan 43 is installed on sealing cover plate 42, by starting exhaust fan 43, external air is inhaled to inside through air inlet 48, and activated carbon filter block 47 is arranged in threaded cover 45 and carries out gas filtration, and the internal flue gas is discharged through exhaust hole 46 on threaded cover 45, which is simple in design, can filter flue gas that produces polluted air, avoid polluted air, and protect the health of operating personnel.

[0026] Threaded ring 44 is installed in the position of the air hole in the surface of sealing cover plate 42, threaded cover 45 is screw-connected on the outer surface of threaded ring 44, threaded cover 45 is fixed on the surface of sealing cover plate 42 by threaded ring 44, by setting threaded ring 44, the installation and dismounting of threaded cover 45 on sealing cover plate 42 can be realized, convenient to use, and the installation and replacement of activated carbon filter block 47 can be realized quickly.

[0027] Observation window 49 is set in the surface of sealing cover plate 42, to facilitate the progress of plastic flame-retardant performance test.

[0028] Handle 410 is installed on the surface of sealing cover plate 42, to improve the convenience of use.

[0029] The strong magnetic block 411 is installed in the hole opened on the surface of the sealing cover plate 42, and the strong magnetic block 411 is also installed at the position corresponding to the hole opened on the surface of the sealing cover plate 42 of the sealing box body 41. The two strong magnetic blocks 411 are magnetically attracted to each other. By installing the strong magnetic block 411 at the position corresponding to the sealing box body 41 and the sealing cover plate 42, the closure between the sealing box body 41 and the sealing cover plate 42 is achieved.

[0030] Embodiment 2:

[0031] Please refer to Figures 1-6 In the embodiment, the feeding assembly 5 comprises a fixed seat 51, a roller 52, a fixed rail 53, a pull rope 54, a counterweight 55, a guide block 56 and a guide groove 57. The fixed seat 51 is installed on the base of the heating mechanism 2. The roller 52 is installed on both sides of the fixed seat 51. The fixed rail 53 is installed on the surface of the hot wire tester main body 1. The width of the fixed rail 53 is suitable for the width of the roller 52. The roller 52 is clamped on the surface of the fixed rail 53. The fixed seat 51 slides on the surface of the fixed rail 53 through the roller 52. The pull rope 54 is installed on one side of the fixed seat 51. The counterweight 55 is installed on the other end of the pull rope 54. The pull rope 54 slides on the surface of the pulley installed on the surface of the hot wire tester main body 1. The guide block 56 is installed on the surface of the fixed seat 51. The guide groove 57 is opened on the inner wall of the sealing box body 41. The guide groove 57 is suitable for the guide block 56. The guide block 56 slides in the guide groove 57. By setting the feeding assembly 5 on the base of the heating mechanism 2, the roller 52 on the fixed seat 51 slides on the fixed rail 53 through the pull rope 54 on one side of the fixed seat 51. The counterweight 55 is connected to one end of the pull rope 54. Under the gravity of the counterweight 55, the roller 52 on the fixed seat 51 slides on the fixed rail 53, thereby driving the heating mechanism 2 to move for testing the plastic flame retardant performance. The structure is simple, and the plastic flame retardant performance test can be moved. The use is convenient. The guide block 56 and the guide groove 57 further improve the stability of the heating mechanism 2 when pushing the plastic flame retardant performance test.

[0032] Through the above steps, when in use, external air is sucked into the interior through the air inlet hole 48 by starting the air exhaust fan 43, and the activated carbon filter block 47 is arranged in the threaded cover 45 to filter the gas, and the internal flue gas is discharged through the air outlet hole 46 on the threaded cover 45, which has the advantages of simple design, filtering of the flue gas that pollutes the air, avoidance of pollution of the air, protection of the health of the operating personnel, and the like.

[0033] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A glow wire tester for testing the flame retardant properties of plastics, comprising a glow wire tester body (1), characterized in that: The utility model provides a kind of hot wire tester, including heating mechanism (2), residue collection box (3), smoke purification assembly (4) and feeding assembly (5), the heating mechanism (2) is arranged on the upper surface of hot wire tester main body (1), the surface of hot wire tester main body (1) is arranged with residue collection box (3) below heating mechanism (2), the surface of hot wire tester main body (1) is arranged with smoke purification assembly (4), and feeding assembly (5) is arranged between heating mechanism (2) and hot wire tester main body (1).

2. The glowing wire tester for testing the flame retardant properties of plastics according to claim 1, characterized in that The smoke purification assembly (4) includes a sealed box (41), a sealed cover plate (42), an exhaust fan (43), a threaded cover (45), an exhaust hole (46), an activated carbon filter block (47), and an air inlet hole (48). The surface of the hot wire tester main body (1) is mounted with a sealed box (41). The surface of the sealed box (41) is hinged with an L-shaped sealed cover plate (42). Two air holes on the surface of the sealed cover plate (42) are each mounted with an exhaust fan (43). The two sides of the sealed box (41) are each provided with an air inlet hole (48). The surface of the sealed cover plate (42) is provided with a threaded cover (45) above the exhaust fan (43). The surface of the threaded cover (45) is provided with an exhaust hole (46). The threaded cover (45) is provided with an activated carbon filter block (47). The activated carbon filter block (47) is circularly arranged in the threaded cover (45) and is adapted to the inner wall of the threaded cover (45).

3. The glowing wire tester for testing the flame retardant properties of plastics according to claim 2, characterized in that: The air holes on the surface of the sealed cover plate (42) are each provided with a threaded ring (44). The threaded cover (45) is threadedly connected to the outer surface of the threaded ring (44). The threaded cover (45) is fixed to the surface of the sealed cover plate (42) through the threaded ring (44).

4. The glowing wire tester for testing the flame retardant properties of plastics according to claim 2, characterized in that: The surface of the sealed cover plate (42) is provided with an observation window (49).

5. The glowing wire tester for testing the flame retardant properties of plastics according to claim 2, characterized in that: The surface of the sealed cover plate (42) is mounted with a handle (410).

6. The glowing wire tester for testing the flame retardant properties of plastics according to claim 2, characterized in that: The holes on the two sides of the surface of the sealed cover plate (42) are each mounted with a strong magnetic block (411). The sealed box (41) and the holes on the surface of the sealed cover plate (42) are each provided with a strong magnetic block (411). The two strong magnetic blocks (411) are magnetically attracted to each other.

7. The glowing wire tester for testing the flame retardant properties of plastics according to claim 2, characterized in that: The feeding assembly (5) comprises a fixing seat (51), a roller (52), a fixing rail (53), a pull rope (54), a counterweight (55), a guide block (56) and a guide groove (57), the base of the heating mechanism (2) is provided with the fixing seat (51), the two sides of the fixing seat (51) are provided with the roller (52), the surface of the incandescent filament tester main body (1) is provided with two fixing rails (53) compatible with the width of the roller (52), the roller (52) is clamped on the surface of the fixing rail (53), the fixing seat (51) slides on the surface of the fixing rail (53) through the roller (52), one side of the fixing seat (51) is provided with two pull ropes (54), the other end of the pull rope (54) is provided with the counterweight (55), the pull rope (54) slides on the surface of the pulley installed on the surface of the incandescent filament tester main body (1), the surface of the fixing seat (51) is provided with the guide block (56), the inner wall of the sealing box (41) is provided with the guide groove (57) compatible with the guide block (56), and the guide block (56) slides in the guide groove (57).

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