Glowing filament tester with air purification function

Abstract

The glowing filament tester with the air purification function comprises an equipment protection shell, a sealing door plate is rotatably installed on the front surface of the equipment protection shell, an operation panel is installed on the front surface of the equipment protection shell in an embedded mode, an exhaust pipe is connected to the top end of the equipment protection shell in an inserted mode, and a detachable inner pipe is installed in the exhaust pipe in a sliding mode. Two insulating supporting rods are fixed in the equipment protection shell, a conductive metal rod is fixed in the insulating supporting rods in the axial direction in a penetrating mode, one end of the conductive metal rod is connected with a power source, two clamping elastic strips are fixed to the outer side of the other end of the conductive metal rod, and clamping pieces are fixed to the other ends of the clamping elastic strips. Compared with the prior art, the sealing test device has the advantages that a sealing test environment is formed between the two insulating supporting rods through the fixed sleeve and the butt-joint sleeve, gas generated in the test process can be prevented from diffusing, the gas is intensively discharged and collected, and the safety of testers is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of glow-wire testers, in particular to a glow-wire tester with air purification. Background Art

[0002] The glow wire tester simulates that the insulating material or other solid combustible material parts that are easy to spread flames inside the equipment may be ignited by the glow wire or glow element. Under certain conditions, such as fault current flowing through the wire, component overload and poor contact, some components will reach a certain temperature and cause the nearby parts to ignite.

[0003] It is suitable for fire hazard tests of electrical and electronic products, household appliances and their materials, simulating the thermal stress caused by heat sources or ignition sources such as burning components or overload resistors in a short time.

[0004] However, in the prior art, a large amount of gas is generated during the glow-wire test. The gas will gather inside the device and diffuse directly outward from the inside of the device when the device is turned on. It is easy for the person who turns on the device to inhale the gas and cause harm to the person using the device. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a glow wire tester with air purification.

[0006] In order to solve the above technical problems, the technical solution of the utility model is:

[0007] A glow wire tester with air purification comprises an equipment protection shell, a sealing door panel and an operation panel are rotatably installed on the front surface of the equipment protection shell, an exhaust pipe is inserted into the top end of the equipment protection shell, a detachable inner tube is slidably installed inside the exhaust pipe, two insulating support rods are fixed inside the equipment protection shell, a conductive metal rod is axially penetrated and fixed to the insulating support rod, one end of the conductive metal rod is connected to a power supply, two clamping elastic strips are fixed to the outside of the other end of the conductive metal rod, a clamping sheet is fixed to the other end of the clamping elastic strip, a docking sleeve is installed below the two insulating support rods, a fixed sleeve is installed above the two insulating support rods, the upper surface of the fixed sleeve is fixed to the bottom end of the exhaust pipe, an exhaust hole is penetrated at the connection between the fixed sleeve and the exhaust pipe and the fixed sleeve is connected to the exhaust pipe through the exhaust hole.

[0008] Preferably, the side of the fixed sleeve is in contact with the side of the docking sleeve and a locking screw is inserted through the edge, and the fixed sleeve and the docking sleeve are connected by the locking screw.

[0009] Preferably, the inner sides of the ends of the fixing sleeve and the docking sleeve are both provided with C-shaped grooves, and the inner sides of the C-shape are provided with arc-shaped grooves.

[0010] Preferably, the inner side of the C-shaped groove is filled with a C-shaped sealing strip, and the thickness of the C-shaped sealing strip is greater than the depth of the C-shaped groove.

[0011] Preferably, a plurality of filter sheets distributed at equal intervals are fixed inside the detachable inner tube along the axial direction.

[0012] Preferably, the filter sheet comprises an activated carbon adsorption sheet and a lime sheet, and the activated carbon adsorption sheet and the lime sheet are distributed alternately with each other.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. A sealed test environment is formed between two insulating support rods by fixing the sleeve and the butt sleeve, which can prevent the diffusion of the gas generated during the experiment, and discharge the gas centrally through the detachable inner tube. The filter can purify the gas during discharge, or a balloon can be placed on the outside of the top of the exhaust pipe to collect the gas centrally, which is convenient for subsequent processing and ensures the safety of the test personnel;

[0015] 2. Move the two clamping pieces that are close to each other away from each other. At this time, the clamping elastic strip will bend and deform. Then place the end of the experimental product between the two separated clamping pieces and release the clamping pieces. After releasing the clamping pieces, the clamping elastic strip recovers and drives the clamping pieces to reset, so that the two clamping pieces clamp the ends of the experimental products. The experimental products can be clamped and fixed quickly. The operation is simple, fast and saves operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the device protection housing of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0019] Figure 4 It is a cross-sectional view of the fixed sleeve and the butt sleeve of the utility model;

[0020] Figure 5 It is a schematic diagram of the end of the clamping piece of the utility model.

[0021] In the figure: 1. Equipment protection shell; 2. Exhaust pipe; 3. Sealing door panel; 4. Operation panel; 5. Removable inner tube; 6. Filter; 7. Fixed sleeve; 8. Exhaust hole; 9. Docking sleeve; 10. Insulating support rod; 11. Conductive metal rod; 12. Clamping elastic strip; 13. Clamping sheet; 14. Locking screw; 15. C-shaped sealing strip. DETAILED DESCRIPTION

[0022] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the device comprises a protective shell 1, a sealing door panel 3 is rotatably mounted on the front surface of the protective shell 1 and an operation panel 4 is inlaid and mounted, an exhaust pipe 2 is plugged into the top of the protective shell 1, a detachable inner tube 5 is slidably mounted inside the exhaust pipe 2, two insulating support rods 10 are fixed inside the protective shell 1, a conductive metal rod 11 is axially penetrated and fixed on the insulating support rod 10, one end of the conductive metal rod 11 is connected to a power source, two clamping elastic strips 12 are fixed on the outside of the other end of the conductive metal rod 11, a clamping sheet 13 is fixed on the other end of the clamping elastic strip 12, and a clamping plate 13 is installed below the two insulating support rods 10. A fixed sleeve 7 is installed above the docking sleeve 9 and two insulating support rods 10. The upper surface of the fixed sleeve 7 is fixed to the bottom end of the exhaust pipe 2. An exhaust hole 8 is penetrated at the connection between the fixed sleeve 7 and the exhaust pipe 2 and is connected to the exhaust pipe 2 through the exhaust hole 8. The side of the fixed sleeve 7 fits with the side of the docking sleeve 9 and a locking screw 14 is inserted through the edge. The fixed sleeve 7 and the docking sleeve 9 are connected by the locking screw 14. The docking sleeve 9 and the fixed sleeve 7 are used to seal and surround the part between the two equipment protection shells 1 to ensure that the gas generated during the hot wire test will not diffuse inside the equipment protection shell 1.

[0024] In this embodiment, a C-shaped groove is provided on the inner side of the end of the fixed sleeve 7 and the docking sleeve 9, and an arc groove is provided on the inner side of the C-shape. The inner side of the C-shaped groove is filled with a C-shaped sealing strip 15. The thickness of the C-shaped sealing strip 15 is greater than the depth of the C-shaped groove. The C-shaped sealing strip 15 is used to fill the gap between the fixed sleeve 7, the docking sleeve 9 and the insulating support rod 10 to ensure that the gas located in the fixed sleeve 7 and the docking sleeve 9 cannot diffuse outward along the connection gap between the fixed sleeve 7, the docking sleeve 9 and the insulating support rod 10.

[0025] As the preferred technical solution of this embodiment, Figure 2 As shown, a plurality of filter sheets 6 are fixed at equal intervals inside the detachable inner tube 5 along the axial direction, and the filter sheets 6 include activated carbon adsorption sheets and lime sheets, which are staggered with each other. The filter sheets 6 composed of the activated carbon adsorption sheets and the lime sheets can purify the gas generated in the glow-wire test to ensure that the exhausted gas will not pollute the environment or cause harm to the workers.

[0026] Working principle: First, move the two clamping pieces 13 that are close to each other away from each other, at this time, the clamping elastic strip 12 will bend and deform, then place the end of the experimental product between the two separated clamping pieces 13 and release the clamping piece 13. After releasing the clamping piece 13, the clamping elastic strip 12 recovers and drives the clamping piece 13 to reset, so that the two clamping pieces 13 clamp the end of the experimental product. After the experimental product is clamped, fit the docking sleeve 9 to the bottom surface of the fixed sleeve 7 and fix it with the locking screw 14, then close the sealing door panel 3 and turn on the power supply of the equipment to carry out the glow wire experiment. During the experiment, the current flows along the conductive metal rod 11, the clamping elastic strip 12 and the conductive metal rod 11. The strip 12 and the clamping piece 13 are transferred to the experimental supplies, the experimental supplies heat up, burn and generate gas, and the gas generated by the experimental supplies will be confined between the fixed sleeve 7 and the docking sleeve 9 connected by the locking screw 14. The gas between the fixed sleeve 7 and the docking sleeve 9 can only enter the detachable inner tube 5 through the exhaust hole 8, and pass through the filter 6 in the detachable inner tube 5 and then be discharged or collected. A sealed test environment is formed between the two insulating support rods 10 by the fixed sleeve 7 and the docking sleeve 9, which can prevent the gas generated during the experiment from diffusing, and the gas is discharged and collected in a centralized manner to ensure the safety of the experimenters.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A glow wire tester with air purification, comprising a device protection housing (1), a sealing door panel (3) rotatably mounted on the front surface of the device protection housing (1) and an operating panel (4) inlaid thereon, characterized in that: An exhaust pipe (2) is inserted at the top end of the equipment protection shell (1), a detachable inner tube (5) is slidably installed inside the exhaust pipe (2), two insulating support rods (10) are fixed inside the equipment protection shell (1), a conductive metal rod (11) is axially penetrated and fixed through the insulating support rod (10), one end of the conductive metal rod (11) is connected to a power source, two clamping elastic strips (12) are fixed to the outside of the other end of the conductive metal rod (11), and a clamping sheet (13) is fixed to the other end of the clamping elastic strip (12), a docking sleeve (9) is installed below the two insulating support rods (10), a fixed sleeve (7) is installed above the two insulating support rods (10), the upper surface of the fixed sleeve (7) is fixed to the bottom end of the exhaust pipe (2), an exhaust hole (8) is penetrated at the connection between the fixed sleeve (7) and the exhaust pipe (2), and the fixed sleeve (7) is connected to the exhaust pipe (2) through the exhaust hole (8); A plurality of filter sheets (6) distributed at equal intervals are fixed inside the detachable inner tube (5) along the axial direction.

2. A glow wire tester with air purification according to claim 1, characterized in that: The side of the fixed sleeve (7) is in contact with the side of the docking sleeve (9) and a locking screw (14) is inserted through the edge. The fixed sleeve (7) and the docking sleeve (9) are connected via the locking screw (14).

3. A glow wire tester with air purification according to claim 2, characterized in that: The inner sides of the ends of the fixed sleeve (7) and the docking sleeve (9) are both provided with C-shaped grooves, and the inner sides of the C-shaped grooves are provided with arc-shaped grooves.

4. A glow wire tester with air purification according to claim 3, characterized in that: The inner side of the C-shaped groove is filled with a C-shaped sealing strip (15), and the thickness of the C-shaped sealing strip (15) is greater than the depth of the C-shaped groove.

5. The glow wire tester with air purification according to claim 1, characterized in that: The filter sheet (6) comprises an activated carbon adsorption sheet and a lime sheet, and the activated carbon adsorption sheet and the lime sheet are arranged in an alternating manner.

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