Cable fire resistance testing mechanism

Abstract

The utility model relates to the technical field of cable testing, and discloses a cable fire resistance testing mechanism which comprises a box body, a gas pipe is fixedly installed on the inner top wall of the box body, a flame nozzle is fixedly installed at the bottom of the gas pipe, a water storage tank is movably installed on the inner side of the box body, fixing grooves are formed in the two sides of the box body, and the water storage tank is movably installed in the box body. And a filtering assembly is arranged at the top of the box body. According to the cable fire resistance testing mechanism, suction force is generated through work of the air blower, smoke generated in the box body is conveyed to the smoke collecting box through the smoke inlet pipe, harmful substances in the smoke can be filtered through the activated carbon filtering layer in the smoke collecting box, and then the filtered smoke is discharged through the air outlet pipe, so that harm of the harmful smoke to experimenters is reduced; the exhausted smoke does not pollute air or stimulate nasal cavities of people, the use feeling effect is good, and the problems that harmful gas harms health and safety of workers and pollutes the working environment are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable testing, in particular to a cable fire resistance testing mechanism. Background Art

[0002] Cables are usually made of one or more wires twisted together into a rope-like cable, each set of wires is insulated from each other and often twisted around a center, with a highly insulating covering on the outside. Cables have the characteristics of being powered inside and insulated outside.

[0003] Cable testing equipment refers to the general term for equipment that detects the characteristics of cables. During the cable production process, it is necessary to test the cable's toughness, conductivity, fire resistance and other characteristics. Among them, the fire resistance test is particularly important. When the transformer is overloaded, there may be a fire hazard. At this time, if the cable connected to the transformer has good fire resistance, it will not cause a large range of cables to be burned. Therefore, we need to use cable fire resistance testing equipment to test the fire resistance of cables during cable production.

[0004] However, when cables are currently undergoing fire resistance tests, most of the time the cables are hung up or placed in one place for burning. When some unqualified cables are subjected to fire resistance tests, the absorbing effect on the melted rubber material dripping from the burning cables is poor. The melted rubber material is easy to drip to the outside, causing pollution to the external environment. Moreover, the waste gas and harmful gases generated during the cable fire resistance test are directly discharged, affecting the working environment and even causing potential safety hazards to the staff. Therefore, a cable fire resistance testing mechanism is proposed.

[0005] Moreover, during the fire resistance test on some unqualified cables, the absorbing effect of the melted rubber material dripping from the burning cables is poor, and the melted rubber material is easy to drip to the outside, causing pollution to the external environment. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a cable fire resistance testing mechanism, which has the advantages of easy collection and filtering, and solves the problem of the random flow of rubber and the generation of harmful gases when the cable burns, which endangers the health and safety of workers and pollutes the working environment. In order to achieve the above-mentioned purpose of easy collection and filtering, the utility model provides the following technical solutions: a cable fire resistance testing mechanism, including a box body, a gas pipe is fixedly installed on the inner top wall of the box body, a flame nozzle is fixedly installed on the bottom of the gas pipe, a water tank is movably installed on the inner side of the box body, fixed grooves are opened on both sides of the box body, and a filter assembly is arranged on the top of the box body;

[0007] The filter assembly includes a smoke collecting box fixedly installed at the bottom of the box body, smoke inlet pipes that penetrate the box body are fixedly installed on both sides of the smoke collecting box, a blower is arranged on the top of the smoke collecting box, an air inlet pipe fixedly connected to the smoke collecting box is fixedly installed at the output end of the blower, an air outlet pipe is fixedly installed at the input end of the blower, and an activated carbon filter layer is fixedly installed on the inner side of the smoke collecting box.

[0008] Furthermore, a through hole matched with the smoke inlet pipe is opened on the top of the box body, the smoke inlet pipe is fixedly connected to the box body, and the gas pipe is located between the two through holes.

[0009] Furthermore, telescopic springs are fixedly installed on both sides of the inner wall of the fixing groove, and semicircular arc buckles are fixedly installed on opposite sides of the two telescopic springs.

[0010] Furthermore, a fire-resistant door is hingedly connected to the front of the box body through hinges, and the fire-resistant door is a fire-resistant glass door.

[0011] Furthermore, the length of the water tank is shorter than the length of the tank body, and the water tank is located below the flame spray nozzle. A plurality of flame spray nozzles are provided, and the intervals between each flame spray nozzle are equal.

[0012] Furthermore, an air inlet hole adapted to the air inlet pipe is provided on the top of the smoke collecting box and on the left side of the blower. A placement plate is fixedly installed on the top of the smoke collecting box. The placement plate is located at the bottom of the blower and fixedly connected to the blower.

[0013] Compared with the prior art, the utility model provides a cable fire resistance testing mechanism, which has the following

[0014] Beneficial effects:

[0015] 1. The cable fire resistance testing mechanism generates suction through the blower, and transports the smoke generated in the box to the smoke collecting box through the smoke inlet pipe. The harmful substances in the smoke can be filtered through the activated carbon filter layer in the smoke collecting box. The filtered smoke is then discharged through the air outlet pipe, reducing the harm of harmful smoke to the experimenters. The discharged smoke will not pollute the air or irritate the nasal cavity of the personnel. The use experience is good, avoiding the problem of harmful gases endangering the health and safety of the staff and polluting the working environment.

[0016] 2. The cable fire resistance test mechanism is equipped with a water tank. When conducting a combustion test on some unqualified cables, it can receive and collect the melted rubber dripping from the burning cable, so that the melted rubber on the outside of the cable can fall into the water tank for cooling, preventing the melted rubber from flowing freely and polluting the external environment, thereby effectively improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing groove, telescopic spring and semicircular arc buckle of the utility model;

[0019] Figure 3 It is a front view of the structure of the utility model.

[0020] In the figure: 1. box body; 2. gas pipe; 3. flame nozzle; 4. water storage tank; 5. fixing groove; 6. smoke collecting box; 7. smoke inlet pipe; 8. blower; 9. air inlet pipe; 10. air outlet pipe; 11. activated carbon filter layer; 12. telescopic spring; 13. semicircular arc buckle; 14. fire-resistant box door; 15. placement plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 A cable fire resistance testing mechanism includes a box body 1, a gas pipe 2 is fixedly installed on the inner top wall of the box body 1, and a flame nozzle 3 is fixedly installed on the bottom of the gas pipe 2. A plurality of flame nozzles 3 are provided, and the intervals between each flame nozzle 3 are equal. Flames are sprayed from the flame nozzles 3 to burn the cable.

[0023] A water tank 4 is movably installed on the inner side of the box body 1, and the length of the water tank 4 is smaller than the length of the box body 1, wherein the water tank 4 is located below the flame nozzle 3, and the melted rubber when the cable burns will drip into the water tank 4, which is used to receive and collect the melted rubber. In addition, a fire-resistant box door 14 is hinged on the front side of the box body 1 through a hinge, and the fire-resistant box door 14 is a fire-resistant glass door. The water tank 4 can be taken out by opening the fire-resistant box door 14, so that the water tank 4 can be cleaned.

[0024] Fixed grooves 5 are provided on both sides of the box body 1, and telescopic springs 12 are fixedly installed on both sides of the inner wall of the fixed groove 5, wherein semicircular arc buckles 13 are fixedly installed on the opposite sides of the two telescopic springs 12. The cables can be clamped and fixed by the telescopic springs 12 and the semicircular arc buckles 13 on both sides, and cables of different sizes can also be clamped.

[0025] A filter assembly is arranged on the top of the box body 1 for filtering the smoke generated when the cable is burned.

[0026] The filter assembly includes a smoke collecting box 6 fixedly installed at the bottom of the box body 1, and smoke inlet pipes 7 penetrating the box body 1 are fixedly installed on both sides of the smoke collecting box 6. In addition, a through hole compatible with the smoke inlet pipe 7 is opened on the top of the box body 1. The smoke inlet pipe 7 is fixedly connected to the box body 1, wherein the gas pipe 2 is located between the two through holes, and the smoke from the box body 1 enters the smoke collecting box 6 through the smoke inlet pipe 7.

[0027] A blower 8 is arranged on the top of the smoke collecting box 6 , and a placement plate 15 is fixedly installed on the top of the smoke collecting box 6 . The placement plate 15 is located at the bottom of the blower 8 and is fixedly connected to the blower 8 . The placement plate 15 is used to place the blower 8 .

[0028] An air inlet pipe 9 fixedly connected to the smoke collecting box 6 is fixedly installed at the output end of the blower 8, and an air outlet pipe 10 is fixedly installed at the input end of the blower 8, wherein an air inlet hole compatible with the air inlet pipe 9 is provided at the top of the smoke collecting box 6 and on the left side of the blower 8, and an activated carbon filter layer 11 is fixedly installed on the inner side of the smoke collecting box 6 for filtering out harmful substances in the smoke.

[0029] Working principle:

[0030] When in use, the cable is placed in the semicircular buckle 13 in the fixing groove 5, and the semicircular buckles 13 on both sides clamp and fix the cable. When the flame nozzle 3 sprays flames to burn the cable, a large amount of smoke will be generated in the box body 1. At this time, the blower 8 is turned on, and the blower 8 generates suction to allow the smoke generated in the box body 1 to enter the smoke collecting box 6 through the smoke inlet pipe 7. The activated carbon filter layer 11 in the smoke collecting box 6 will filter the harmful substances in the smoke, and the filtered smoke will be discharged from the air outlet pipe 10. At the same time, the rubber generated by the burning and melting of the cable will drip into the water tank 4, and the water tank 4 will receive and collect the melted rubber. The melted rubber is cooled in the water tank 4 to reduce the pollution of the melted rubber to the external environment.

[0031] The electrical components mentioned in the text are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the text.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable fire resistance testing mechanism, comprising a box (1), characterized in that: A gas pipe (2) is fixedly mounted on the inner top wall of the box (1), a flame nozzle (3) is fixedly mounted on the bottom of the gas pipe (2), a water storage tank (4) is movably mounted on the inner side of the box (1), fixed grooves (5) are provided on both sides of the box (1), and a filter assembly is arranged on the top of the box (1); The filter assembly comprises a smoke collecting box (6) fixedly mounted on the bottom of a box body (1), smoke inlet pipes (7) penetrating the box body (1) are fixedly mounted on both sides of the smoke collecting box (6), a blower (8) is arranged on the top of the smoke collecting box (6), an air inlet pipe (9) fixedly connected to the smoke collecting box (6) is fixedly mounted on the output end of the blower (8), an air outlet pipe (10) is fixedly mounted on the input end of the blower (8), and an activated carbon filter layer (11) is fixedly mounted on the inner side of the smoke collecting box (6).

2. A cable fire resistance testing mechanism according to claim 1, characterized in that: A through hole matched with the smoke inlet pipe (7) is provided on the top of the box body (1); the smoke inlet pipe (7) is fixedly connected to the box body (1); and the gas pipe (2) is located between the two through holes.

3. A cable fire resistance testing mechanism according to claim 1, characterized in that: Telescopic springs (12) are fixedly mounted on both sides of the inner wall of the fixing groove (5), and semicircular arc buckles (13) are fixedly mounted on opposite sides of the two telescopic springs (12).

4. A cable fire resistance testing mechanism according to claim 1, characterized in that: The front of the box body (1) is hinged with a fire-resistant box door (14) via a hinge, and the fire-resistant box door (14) is a fire-resistant glass door.

5. A cable fire resistance testing mechanism according to claim 1, characterized in that: The length of the water tank (4) is less than the length of the box body (1). The water tank (4) is located below the flame spray nozzle (3). A plurality of flame spray nozzles (3) are provided, and the intervals between each flame spray nozzle (3) are equal.

6. A cable fire resistance testing mechanism according to claim 1, characterized in that: An air inlet hole adapted to the air inlet pipe (9) is provided at the top of the smoke collecting box (6) and located on the left side of the blower (8), and a placement plate (15) is fixedly installed on the top of the smoke collecting box (6), and the placement plate (15) is located at the bottom of the blower (8) and is fixedly connected to the blower (8).

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