A flame retardant detection device for flame retardant and environmentally friendly cables

Abstract

The present invention relates to the field of cable detection technology, and in particular to a flame retardancy detection device for flame retardant and environmentally friendly cables. It includes a base plate, and also includes a limiting unit, the limiting unit is connected to the upper end of the base plate, the limiting unit includes a U-shaped plate installed at the upper end of the base plate with an opening facing downward, a plurality of evenly distributed hinged frames are installed at the upper end of the horizontal section of the U-shaped plate, and a limiting component connected to the upper end of the U-shaped plate is arranged behind the hinged frame. When the multiple detection units used in the present invention detect a cable at the same time, the accuracy of the flame retardancy detection result of the cable is effectively increased, and the accidental factors of the cable itself are avoided from affecting the detection result. The multiple detection units cooperate with the multiple limiting components, and can also simultaneously detect different numbers of cables in multiple directions such as horizontal and vertical directions, effectively improving the efficiency of various types of flame retardancy detection of cables.

Description

Technical Field

[0001] The invention relates to the technical field of cable detection, and in particular to a flame retardancy detection device for a flame retardant and environment-friendly cable. Background Art

[0002] Flame retardant and environmentally friendly cables are a special type of cable designed to improve safety and reduce the harmful effects that may occur when a fire occurs. Flame retardant and environmentally friendly cables are widely used in various occasions where safety and environmental protection need to be considered.

[0003] Flame-retardant and environmentally friendly cables need to undergo flame-retardant performance tests during the manufacturing process to ensure that the cables can slow down or prevent the spread of flames when encountering a fire source, thereby reducing the losses caused by the fire. The flame retardancy of the cables directly affects the time and safety of personnel evacuation. The flame retardant performance testing of flame-retardant and environmentally friendly cables usually includes vertical burning tests, horizontal burning tests, bundled burning tests and single cable burning tests.

[0004] In the existing technology, when conducting flame retardant performance tests on flame retardant and environmentally friendly cables, both ends of the cable to be tested are usually fixed on the testing equipment, and then the flame spraying device on the testing equipment is started. The flame spraying device sprays fire to one end of the cable, and then observes and records the speed of flame spread, whether it is automatically extinguished, the amount of smoke, and whether there are dripping objects, etc., and then a test report is obtained based on the test results. However, the existing testing equipment can only perform one type of test on the cable. Different types of flame retardant tests on the cable require the use of multiple testing equipment. The applicability of the testing equipment is low, and the testing equipment can only test one or a bundle of cables at a time. The test results are somewhat random, which reduces the accuracy of the test results. Summary of the invention

[0005] Based on this, it is necessary to provide a flame retardancy detection device for flame retardant and environmentally friendly cables, aiming to solve the problems caused by the existing technology when performing flame retardancy detection on flame retardant and environmentally friendly cables.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme to achieve: a flame retardancy detection device for flame retardant and environmentally friendly cables, comprising: a bottom plate.

[0007] It also includes a limiting unit, which is connected to the upper end of the base plate. The limiting unit includes a U-shaped plate with an opening facing downward installed on the upper end of the base plate, a plurality of evenly distributed articulated frames are installed on the upper end of the horizontal section of the U-shaped plate, and a limiting component connected to the upper end of the U-shaped plate is arranged at the rear of the articulated frame.

[0008] It also includes a detection unit, which is provided with multiple detection units and respectively connected to the corresponding articulated frames, and the detection unit includes a rotating block rotatably connected to the articulated frame, a placement frame is installed on the rotating block, and the placement frame is a semi-cylindrical structure, a box cover component is connected to the opening end of the placement frame, an adjusting screw is threadedly connected to the upper frame wall of the placement frame, a rotating rod is installed on the upper end of the lower frame wall of the placement frame, the lower end of the adjusting screw and the upper end of the rotating rod are both rotatably connected to circular plates, the opposite ends of the circular plate are connected to a plurality of circumferentially evenly distributed clamping components, and a gathering component is connected to the frame wall of the placement frame.

[0009] According to an embodiment of the present invention, the detection unit further comprises an air intake component connected to the lower end of the lower frame wall of the placement frame, a bellows is installed through the arcuate frame wall of the placement frame, and a flamethrower module is installed through the lower side of the arcuate frame wall of the placement frame.

[0010] According to an embodiment of the present invention, the limiting component includes two positioning plates symmetrically installed on the upper end of the horizontal section of the U-shaped plate, a C-shaped plate slidingly penetrated and matched with the horizontal section of the U-shaped plate is arranged between the two positioning plates, the two ends of the C-shaped plate are fixedly connected to the placement frame, and a plurality of circumferentially evenly distributed limiting through holes are opened on the C-shaped plate, and a plug-in rod is inserted into any one of the limiting through holes, and the plug-in rod is plugged and matched with the two positioning plates.

[0011] According to an embodiment of the present invention, the box cover component comprises an arc-shaped cover hinged at the open end of the placement frame, and a handle is installed at one end of the arc-shaped cover away from the hinge.

[0012] According to an embodiment of the present invention, the clamping component includes a limiting tube installed on the circular plate, a clamping screw in a horizontal state is threadedly connected to the wall of the limiting tube, one end of the clamping screw located in the limiting tube is rotatably connected to a clamping arc plate, a plurality of evenly distributed limiting teeth are installed on the inner arc surface of the clamping arc plate, a guide rod is installed on the outer arc surface of the clamping arc plate, and the guide rod slides through the wall of the limiting tube to cooperate with each other.

[0013] According to an embodiment of the present invention, the gathering component includes a connecting tube installed through the wall of the placement frame, an annular frame is installed at one end of the connecting tube located inside the placement frame, a plurality of evenly distributed air outlet holes are opened on the lower frame wall of the annular frame, a plurality of circumferentially evenly distributed pushing components are connected to the upper end of the annular frame, and a positioning component is connected to the pushing component.

[0014] According to an embodiment of the present invention, the air intake component includes a cylindrical rod rotatably connected to the lower end of the lower frame wall of the placement frame, a plurality of circumferentially evenly distributed sealing plates are installed on the surface of the cylindrical rod, a plurality of circumferentially evenly distributed air intake holes are opened on the lower frame wall of the placement frame, and a baffle net is installed in the air intake hole.

[0015] According to an embodiment of the present invention, the pushing assembly includes a rectangular plate installed on the upper end of the annular frame, a moving rod in a horizontal state is slidably connected to the rectangular plate, a pushing arc plate is installed at one end of the moving rod close to the axis of the annular frame, and a connecting spring is installed between the pushing arc plate and the rectangular plate.

[0016] According to an embodiment of the present invention, the positioning assembly includes a fixed plate installed on the upper side of one end of the rectangular plate away from the pushing arc plate, and a vertical T-shaped positioning column is inserted into the fixed plate, and the lower end of the T-shaped positioning column is plugged into and cooperated with the moving rod.

[0017] According to an embodiment of the present invention, a partition plate slidably mounted on the outer surfaces of the plurality of position limiting tubes is placed on the upper end of the circular plate located below.

[0018] In summary, the present invention includes the following beneficial technical effects:

[0019] 1. The multiple detection units used in the present invention can be used simultaneously, and each detection unit can realize the function of flame retardant detection of a single cable or multiple cables, which effectively improves the applicability of the detection unit.

[0020] 2. The multiple detection units used in the present invention cooperate with the multiple limiting components to perform flame retardancy detection on the cable from multiple angles, and effectively detect the flame retardancy effect of the cable at different angles, thereby increasing the flexibility of cable flame retardancy detection.

[0021] 3. When the multiple detection units used in the present invention detect a cable at the same time, the accuracy of the cable flame retardant detection results is effectively increased, and the accidental factors of the cable itself are avoided from affecting the detection results. The multiple detection units cooperate with multiple limiting components, and can also perform horizontal, vertical and other multi-directional detections on different numbers of cables at the same time, effectively improving the efficiency of various types of flame retardant detection of cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0024] Figure 2 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0025] Figure 3 A front view of the present invention is shown.

[0026] Figure 4 A left side view of the present invention is shown.

[0027] Figure 5 Shows Figure 3 Sectional view of AA.

[0028] Figure 6 Shows Figure 5 Magnified view of the middle N region.

[0029] Figure 7 The schematic diagram of the structure of the placement frame, circular plate, clamping component, air intake component and partition plate of the present invention is shown.

[0030] Figure 8 A schematic structural diagram of the placement frame and the gathering component of the present invention is shown.

[0031] The above drawings include the following reference numerals: 1, bottom plate; 2, limiting unit; 21, U-shaped plate; 22, hinged frame; 23, limiting component; 231, positioning plate; 232, C-shaped plate; 233, limiting through hole; 234, plug-in rod; 3, detection unit; 31, placement frame; 32, box cover component; 321, arc cover; 322, handle; 33, adjusting screw; 34, rotating rod; 35, round plate; 36, clamping component; 361, limiting tube; 362, clamping screw; 363, clamping arc plate; 3 64. Guide rod; 37. Gathering component; 371. Connecting pipe; 372. Ring frame; 373. Air outlet; 374. Pushing assembly; 3741. Rectangular plate; 3742. Moving rod; 3743. Pushing arc plate; 3744. Connecting spring; 375. Positioning assembly; 3751. Fixed plate; 3752. T-shaped positioning column; 38. Air intake component; 381. Cylindrical rod; 382. Sealing plate; 383. Air intake hole; 384. Blocking net; 39. Bellows; 30. Partition; 311. Flame-throwing module. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0033] See also Figure 1-Figure 4A flame retardant detection device for a flame retardant and environmentally friendly cable includes a base plate 1 and a limit unit 2, wherein the limit unit 2 is connected to the upper end of the base plate 1, and the limit unit 2 includes a U-shaped plate 21 installed at the upper end of the base plate 1 with an opening facing downward, and a plurality of evenly distributed articulated frames 22 are installed at the upper end of the horizontal section of the U-shaped plate 21.

[0034] See also Figure 1 , Figure 2 and Figure 5 The flame retardancy detection device of the flame retardant and environmentally friendly cable also includes a detection unit 3, which is provided with multiple detection units 3 and respectively connected to the corresponding articulated frames 22. The detection unit 3 includes a rotating block rotatably connected to the articulated frame 22, and a placement frame 31 is installed on the rotating block. The placement frame 31 has a semi-cylindrical structure.

[0035] During specific operation, the base plate 1 is installed and fixed at the working position before detection, and a plurality of placement frames 31 are connected to the articulated frame 22 through corresponding rotating blocks.

[0036] See also Figure 1 , Figure 2 and Figure 5 The opening end of the placement frame 31 is connected with a box cover component 32, and the box cover component 32 includes an arc cover 321 hinged at the opening end of the placement frame 31, and a handle 322 is installed at one end of the arc cover 321 away from its hinge.

[0037] The arc cover 321 is made of glass, and a magnet is installed at one end of the arc cover 321 away from its hinge. Initially, the arc cover 321 covers the placement frame 31, and the magnet on the arc cover 321 cooperates with the placement frame 31 by magnetic attraction. Before detection, the arc cover 321 is driven to rotate by the handle 322 to open the opening of the placement frame 31.

[0038] See also Figure 5 The upper frame wall of the placement frame 31 is threadedly connected with an adjusting screw 33, and the upper end of the lower frame wall of the placement frame 31 is installed with a rotating rod 34. The lower end of the adjusting screw 33 and the upper end of the rotating rod 34 are both rotatably connected with a circular plate 35, and the opposite end of the circular plate 35 is connected with a plurality of circumferentially evenly distributed clamping parts 36.

[0039] During specific operation, the adjusting screw 33 is rotated according to the length of the cable to be detected, and the adjusting screw 33 drives the corresponding circular plate 35 to move, thereby changing the distance between the two circular plates 35 so that the distance between the two matches the length of the cable. The moving circular plate 35 drives the corresponding clamping component 36 to move, so that the clamping components 36 on both sides can clamp the cable.

[0040] See also Figure 5 and Figure 7The clamping component 36 includes a limiting tube 361 installed on the circular plate 35, and a clamping screw 362 in a horizontal state is threadedly connected to the tube wall of the limiting tube 361. One end of the clamping screw 362 located in the limiting tube 361 is rotatably connected to a clamping arc plate 363, and a plurality of evenly distributed limiting teeth are installed on the inner arc surface of the clamping arc plate 363. A guide rod 364 is installed on the outer arc surface of the clamping arc plate 363, and the guide rod 364 slides through the tube wall of the limiting tube 361 to cooperate.

[0041] During specific work, a corresponding number of cables are selected according to the number of cables to be tested and placed in the corresponding placement frame 31. When testing a single cable, one end of the cable is placed in any limiting tube 361 on one side, and then the corresponding clamping screw 362 is rotated. The clamping screw 362 drives the clamping arc plate 363 to move toward the cable and press the cable onto the inner wall of the limiting tube 361, thereby realizing the function of clamping and limiting one end of the cable. Then, the other end of the cable is placed in the corresponding limiting tube 361 on the other side, and the previous cable end clamping step is repeated, and then the other end of the cable is clamped and limited, which is convenient for the subsequent flame retardant detection of a single cable. The multiple limiting teeth on the inner arc surface of the clamping arc plate 363 increase the strength of clamping the cable end.

[0042] See also Figure 5 , Figure 6 and Figure 8 A gathering component 37 is connected to the frame wall of the placement frame 31, and the gathering component 37 includes a connecting pipe 371 installed on the frame wall of the placement frame 31. An annular frame 372 is installed at one end of the connecting pipe 371 located inside the placement frame 31. A plurality of evenly distributed air outlet holes 373 are opened on the lower frame wall of the annular frame 372. A plurality of circumferentially evenly distributed pushing components 374 are connected to the upper end of the annular frame 372, and a positioning component 375 is connected to the pushing component 374.

[0043] See also Figure 5 and Figure 8 The pushing assembly 374 includes a rectangular plate 3741 installed on the upper end of the annular frame 372, and a moving rod 3742 in a horizontal state is slidably connected to the rectangular plate 3741. A pushing arc plate 3743 is installed at one end of the moving rod 3742 close to the axis of the annular frame 372, and a connecting spring 3744 is installed between the pushing arc plate 3743 and the rectangular plate 3741.

[0044] See also Figure 5 and Figure 8 The positioning assembly 375 includes a fixed plate 3751 installed on the upper side of one end of the rectangular plate 3741 away from the pushing arc plate 3743, and a T-shaped positioning column 3752 in a vertical state is inserted into the fixed plate 3751, and the lower end of the T-shaped positioning column 3752 is plugged into and matched with the moving rod 3742.

[0045] Initially, the connecting spring 3744 is in a compressed state, and the pushing arc plate 3743 is close to the inner wall of the annular frame 372. Before the detection, the connecting pipe 371 is connected to the tank body containing high-pressure carbon dioxide gas outside through a connecting hose. The tank body has its own valve. When multiple cables are bundled for detection, one end of the multiple cables is first connected to the multiple limiting tubes 361 on the upper side, and then the ends of the multiple cables are clamped and limited by the corresponding clamping screws 362 and the clamping arc plates 363, and then the multiple cables are passed through the inside of the annular frame 372, and then the multiple T-shaped positioning columns 3752 are lifted in turn. The T-shaped positioning columns 3752 release the limit on the moving rod 3742, and the squeezed connecting spring 3744 is reset and drives the pushing arc plate 3743 to move. The multiple pushing arc plates 3743 drive the multiple cables to approach each other and fit tightly, so that the lower ends of the multiple cables are placed in bundles. During the flame retardant detection process, the flame only burns a section of the bundle of multiple cables, thereby realizing the flame retardant detection function of multiple bundled cables.

[0046] See also Figure 5 The detection unit 3 also includes an air intake component 38 connected to the lower end of the lower frame wall of the placement frame 31, a bellows 39 is installed through the arc-shaped frame wall of the placement frame 31, and a flamethrower module 311 is installed through the lower side of the arc-shaped frame wall of the placement frame 31.

[0047] See also Figure 1 , Figure 5 and Figure 7 The air intake component 38 includes a cylindrical rod 381 rotatably connected to the lower end of the lower frame wall of the placement frame 31, and a plurality of circumferentially evenly distributed sealing plates 382 are installed on the surface of the cylindrical rod 381. A plurality of circumferentially evenly distributed air intake holes 383 are opened on the lower frame wall of the placement frame 31, and a baffle net 384 is installed in the air intake hole 383.

[0048] The flamethrower module 311 is the flamethrower head of the existing flamethrower equipment. The flamethrower equipment is installed in the working position. Initially, the bellows 39 is connected to the external air pump. After the cables in the multiple placement frames 31 are clamped, the multiple arc covers 321 are rotated and covered on the placement frames 31 in turn. The magnets on the arc covers 321 are magnetically attracted to the placement frames 31, so that the placement frames 31 and the arc covers 321 form a sealed space. Then, the cylindrical rod 381 is rotated, and the cylindrical rod 381 drives the multiple sealing plates 382 to move, and the air intake of the multiple air inlet holes 383 is adjusted to facilitate the control of the degree of cable burning.

[0049] See also Figure 1 , Figure 2 and Figure 5A limiting component 23 connected to the upper end of the U-shaped plate 21 is arranged at the rear of the articulated frame 22, and the limiting component 23 includes two positioning plates 231 symmetrically installed on the upper end of the horizontal section of the U-shaped plate 21, and a C-shaped plate 232 slidingly penetrated and matched with the horizontal section of the U-shaped plate 21 is arranged between the two positioning plates 231. Both ends of the C-shaped plate 232 are fixedly connected to the placement frame 31, and a plurality of circumferentially uniformly distributed limiting through holes 233 are opened on the C-shaped plate 232. A plug-in rod 234 is inserted into any one of the limiting through holes 233, and the plug-in rod 234 is plugged and matched with the two positioning plates 231.

[0050] During specific operation, after multiple arc-shaped covers 321 are re-covered on the placement frame 31, multiple placement frames 31 can be rotated in sequence according to the requirements of flame retardant detection. The placement frame 31 drives the C-shaped plate 232 to rotate on the horizontal section of the U-shaped plate 21. When the placement frame 31 moves to the required angle, the plug-in rod 234 is inserted into the positioning plate 231 and plugged into the corresponding limiting through hole 233, so as to limit the rotating placement frame 31. During a cable flame retardant detection process, cables at different inclination angles can be burned, thereby improving the diversity of cable flame retardant detection.

[0051] See also Figure 7 A partition plate 30 is placed on the upper end of the circular plate 35 located below and is slidably mounted on the outer surfaces of the plurality of limiting tubes 361 .

[0052] Initially, the partition 30 is placed on the corresponding circular plate 35 to facilitate the isolation of the colloid produced by the vertical burning cable and the centralized removal of the colloid.

[0053] After the multiple placement frames 31 are rotated to a limited position, the flame spraying device is started, and the flame spraying device burns the end of the cable through the flame spraying module 311. At the same time, the existing air pump is started, and the air pump extracts the air in the placement frame 31 through the bellows 39. At the same time, the outside air enters the placement frame 31 through the multiple air inlet holes 383, thereby realizing the flow of air inside the placement frame 31, ensuring that there is enough oxygen in the placement frame 31 during the cable flame retardant detection process, and the air pump can also absorb and collect the smoke generated by the burning of the cable in the placement frame 31 through the bellows 39. The flame spraying module 311 stops spraying after spraying for a period of time. Then observe the burning state of the cable surface, and record the time required for the flame on the cable surface to disappear. At the same time, observe the burning range of the cable surface at different inclination angles, and record the results of the flame retardant test. If the flame on the cable surface does not go out for a long time, open the valve on the tank body, and the carbon dioxide gas enters the annular frame 372 through the connecting hose and the connecting pipe 371. The carbon dioxide in the annular frame 372 is discharged through multiple air outlets 373, thereby extinguishing the flame on the cable surface, ensuring the safety of the flame retardant test. When the cable test is completed, open the arc cover 321, and then take the cable out of the placement frame 31, and the test is completed.

[0054] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0055] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flame retardant detection device for flame retardant and environmentally friendly cables, comprising a bottom plate (1), characterized in that: Also includes: A limiting unit (2) is connected to the upper end of the base plate (1), the limiting unit (2) comprising a U-shaped plate (21) installed at the upper end of the base plate (1) with its opening facing downward, a plurality of evenly distributed hinged frames (22) being installed at the upper end of the horizontal section of the U-shaped plate (21), and a limiting component (23) connected to the upper end of the U-shaped plate (21) being arranged at the rear of the hinged frame (22); The detection unit (3) is provided with a plurality of components respectively connected to the corresponding hinged frame (22), the detection unit (3) comprising a rotating block rotatably connected to the hinged frame (22), a placement frame (31) being installed on the rotating block, the placement frame (31) being of a semi-cylindrical structure, a box cover component (32) being connected to the opening end of the placement frame (31), an adjusting screw (33) being threadedly connected to the upper frame wall of the placement frame (31), a rotating rod (34) being installed at the upper end of the lower frame wall of the placement frame (31), a circular plate (35) being rotatably connected to the lower end of the adjusting screw (33) and the upper end of the rotating rod (34), a plurality of circumferentially evenly distributed clamping components (36) being connected to the opposite ends of the circular plate (35), a gathering component (37) being connected to the frame wall of the placement frame (31), and a flame spraying module (311) being installed through the lower side of the arc-shaped frame wall of the placement frame (31); The gathering component (37) comprises a connecting pipe (371) which is installed through the wall of the placing frame (31); an annular frame (372) is installed at one end of the connecting pipe (371) located inside the placing frame (31); a plurality of evenly distributed air outlet holes (373) are opened on the lower wall of the annular frame (372); a plurality of circumferentially evenly distributed pushing components (374) are connected to the upper end of the annular frame (372); a positioning component (375) is connected to the pushing component (374); The pushing assembly (374) comprises a rectangular plate (3741) mounted on the upper end of the annular frame (372), a moving rod (3742) in a horizontal state is slidably connected through the rectangular plate (3741), a pushing arc plate (3743) is mounted on one end of the moving rod (3742) close to the axis of the annular frame (372), and a connecting spring (3744) is mounted between the pushing arc plate (3743) and the rectangular plate (3741).

2. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 1 is characterized in that: The detection unit (3) also includes an air intake component (38) connected to the lower end of the lower frame wall of the placement frame (31), and a bellows (39) is installed through the upper side of the arc-shaped frame wall of the placement frame (31).

3. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 1 is characterized in that: The limiting component (23) comprises two positioning plates (231) symmetrically installed at the upper end of the horizontal section of the U-shaped plate (21); a C-shaped plate (232) is arranged between the two positioning plates (231) and is slidably penetrated and matched with the horizontal section of the U-shaped plate (21); both ends of the C-shaped plate (232) are fixedly connected to the placement frame (31); a plurality of limiting through holes (233) evenly distributed in the circumferential direction are opened on the C-shaped plate (232); a plug-in rod (234) is inserted into any one of the limiting through holes (233); and the plug-in rod (234) is plug-in matched with the two positioning plates (231) together.

4. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 1, characterized in that: The box cover component (32) comprises an arc-shaped cover (321) hinged on the open end of the placement frame (31), and a handle (322) is installed at one end of the arc-shaped cover (321) away from the hinge.

5. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 1, characterized in that: The clamping component (36) comprises a limiting tube (361) mounted on the circular plate (35); a clamping screw (362) in a horizontal state is threadedly connected to the tube wall of the limiting tube (361); one end of the clamping screw (362) located in the limiting tube (361) is rotatably connected to a clamping arc plate (363); a plurality of evenly distributed limiting teeth are mounted on the inner arc surface of the clamping arc plate (363); a guide rod (364) is mounted on the outer arc surface of the clamping arc plate (363); and the guide rod (364) slides through and cooperates with the tube wall of the limiting tube (361).

6. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 2, characterized in that: The air intake component (38) comprises a cylindrical rod (381) rotatably connected to the lower end of the lower frame wall of the placement frame (31); a plurality of circumferentially evenly distributed sealing plates (382) are mounted on the surface of the cylindrical rod (381); a plurality of circumferentially evenly distributed air intake holes (383) are opened on the lower frame wall of the placement frame (31); and a baffle net (384) is mounted in each of the air intake holes (383).

7. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 1, characterized in that: The positioning assembly (375) includes a fixed plate (3751) installed on the upper side of one end of the rectangular plate (3741) away from the pushing arc plate (3743), and a T-shaped positioning column (3752) in a vertical state is inserted into the fixed plate (3751), and the lower end of the T-shaped positioning column (3752) is plugged into and matched with the moving rod (3742).

8. The flame retardancy detection device for flame retardant and environmentally friendly cables according to claim 5, characterized in that: A partition plate (30) is placed on the upper end of the circular plate (35) located below and is slidably sleeved on the outer surfaces of the plurality of position limiting tubes (361).

Images