Environmentally friendly flame-retardant control soft cable for electrical equipment and its flame-retardant testing equipment

Abstract

The present invention relates to an environmentally friendly flame-retardant control flexible cable for electrical equipment and a flame-retardant test device thereof. The flame-retardant test device of the environmentally friendly flame-retardant control flexible cable for electrical equipment is provided with an outer protective cover, a first fireproof layer is wrapped inside the outer protective cover, a second fireproof layer is wrapped inside the first fireproof layer; a flame-retardant layer is wrapped inside the second fireproof layer, a filler is provided inside the flame-retardant layer, two wire cores are provided inside the filler; each wire core is composed of an inner core and an insulating layer wrapped outside the inner core. The present invention provides a cable with good flame-retardant properties. The present invention can realize two harsh environment simulation tests of combustion and rapid temperature change on the cable. The present invention is easy to use and operate, and can test the flame-retardant properties of the cable and the toughness after temperature change by automatic extrusion.

Description

Technical Field

[0001] The invention relates to the field related to cables, in particular to an environmentally friendly flame-retardant control soft cable for electrical equipment and a flame-retardant testing device thereof. Background Art

[0002] When cables are installed outdoors, they are often exposed to many sudden harsh environments. If you are not careful, huge explosions and fires may occur. Therefore, cables need to have good flame retardant properties. Secondly, cables installed outdoors are exposed to high temperatures, low temperatures, and rapid temperature changes. If the cable has poor toughness, it is very easy to be damaged under high temperatures and burning conditions, which will affect its use. Therefore, cables must be tested for performance before leaving the factory.

[0003] The Chinese invention patent application number 201710730921.7 proposes a cable performance testing device and a cable performance testing method using the same. The device starts the mechanical chuck while energizing the high-voltage lead-out rod to twist the cable to be tested, and simultaneously performs a power-on withstand voltage test. The resistance change value and the number of twists of the cable to be tested under the corresponding value are recorded. The durability of the cable to be tested is evaluated by linking the resistance change and the number of twists. The device has a higher and more accurate evaluation value, while making the performance test more efficient and further reducing the cost and time of the test process.

[0004] However, the above test method cannot test the performance of the cable in a combustion environment. Summary of the invention

[0005] In order to overcome the disadvantage that the above cables are difficult to flame retardant test, the present invention proposes an environmentally friendly flame retardant control soft cable for electrical equipment and a flame retardant test device thereof.

[0006] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0007] Environmentally friendly flame-retardant control soft cable for electrical equipment is provided with an outer shield, the outer shield is wrapped with a first fireproof layer, the first fireproof layer is wrapped with a second fireproof layer; the second fireproof layer is wrapped with a flame-retardant layer, the flame-retardant layer is provided with a filler, and the filler is provided with two cores; each core is composed of an inner core and an insulating layer wrapped outside the inner core. The cable is provided with two layers of fireproof components and a flame-retardant layer, which can provide good flame-retardant protection for the core in harsh fire environments.

[0008] As a further improvement of the present invention, the flame retardant test equipment of the environmentally friendly flame retardant control soft cable for electrical equipment includes a main body compartment, a side guard plate is welded on the left end of the main body compartment, and a mounting shaft is welded on the side guard plate; a translation control device is installed in the upper part of the main body compartment; the translation control device is connected to two clamping blocks; a flamethrower, a cold water pool and a test assembly are installed in the lower part of the main body compartment from right to left respectively. The cable reel can be sleeved on the mounting shaft; the translation control device is used to drive the outer extension end of the environmentally friendly flame retardant control soft cable for electrical equipment to move. The two clamping blocks can be used to clamp and fix the outer extension end of the cable. The flamethrower can spray fire to perform a combustion test on the cable, and the cold water pool can be filled with cold water to quickly cool the cable after burning. The test assembly is used to test the toughness of the cable after burning and rapid cooling and temperature change.

[0009] As a further improvement of the present invention, the side guard plate is fixedly mounted with an extension seat, the side guard plate is hingedly mounted with an oil cylinder, the oil cylinder is hingedly connected to a pressure rod hingedly connected to the extension seat. The oil cylinder pushes the pressure rod, so that the lower part of the pressure rod can be pressed and fixed to the cable reel.

[0010] As a further improvement of the present invention, the translation control device includes a motor installed on the upper part of the main body, a No. I guide rail, a long lead screw connected to the motor, and a top frame threadedly installed on the long lead screw; the top frame is slidably matched with the No. I guide rail. The long lead screw is rotatably installed on the main body. That is, the top frame and the subsequent two clamping blocks can move horizontally under the transmission action of the lead screw nut.

[0011] As a further improvement of the present invention, the translation control device further comprises a hydraulic cylinder and a double guide rod both mounted at the lower end of the top frame; the hydraulic cylinder is connected to a refolding frame slidably connected to the double guide rod. The hydraulic cylinder can drive the refolding frame and the two clamping blocks to rise and fall.

[0012] As a further improvement of the present invention, a guide rail II and two cylinders respectively connected to the clamping blocks are installed at the bottom of the double-folding frame; the two clamping blocks are slidably installed on the guide rail II; each clamping block is provided with an arc-shaped clamping portion. By pushing and pulling the clamping blocks by the cylinders, the arc-shaped clamping portions corresponding to the two clamping blocks can clamp the outer extending end of the fixed cable.

[0013] As a further improvement of the present invention, a wire duct is installed at the right part of the main body compartment, that is, the outer extending end of the cable on the cable reel can be inserted into the main body compartment through the wire duct.

[0014] As a further improvement of the present invention, a rear edge plate is installed at the upper end of the rear part of the cold water pool, and an extension plate is installed on the rear edge plate. The extension plate is used to control the cable transportation route so that the cable must pass through the cold water pool.

[0015] As a further improvement of the present invention, both left and right sides of the extension plate are inclined, and the middle of the extension plate is located in the cold water pool. That is, under the pressure of the middle of the extension plate, the cable must pass through the cold water in the cold water pool, so that the cable can be cooled quickly.

[0016] As a further improvement of the present invention, a bottom groove is opened in the bottom of the main body bin; the test assembly is composed of a hydraulic cylinder installed at the bottom of the main body bin, a main slider connected to the hydraulic cylinder, and a slide rod installed at the upper end of the main slider; the main slider is slidably installed on the bottom groove. By pushing the slide rod to pressurize the cable to see if it is damaged, its toughness after high-temperature combustion and rapid temperature change cooling can be tested.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention provides a cable with good flame retardant properties.

[0019] 2. The present invention can realize two harsh environment simulation tests of burning and rapid temperature change on cables.

[0020] 3. The present invention is easy to use and operate, and can test the flame retardant performance of the cable and the toughness after temperature change by automatic extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is the structural diagram of environmentally friendly flame-retardant control soft cable for electrical equipment;

[0023] Figure 2 This is the main view of the flame retardant test equipment for environmentally friendly flame retardant control flexible cables for electrical equipment;

[0024] Figure 3 yes Figure 2 the corresponding first stereogram;

[0025] Figure 4 yes Figure 3 A local enlarged view of location I;

[0026] Figure 5 yes Figure 2 the corresponding second stereogram;

[0027] Figure 6 yes Figure 5 A partial enlarged view of location II.

[0028] In the figure: 1, main warehouse; 1a, bottom trough; 2, cold water pool; 3, side guard plate; 4, mounting shaft; 5, flamethrower; 6, clamping block; 6a, arc-shaped clamping part; 7, flame retardant layer; 8, extension seat; 9, oil cylinder; 10, pressure rod; 11, motor; 12, guide rail No. I; 13, top frame; 14, hydraulic cylinder; 15, double guide rod; 16, double folding frame; 17, guide rail No. II; 18, cylinder; 19, main slide; 20, slide rod; 21, wire duct; 22, rear edge plate; 23, extension plate; 24, long lead screw; 25, hydraulic cylinder; 26, inner core; 27, insulation layer; 28, filler; 29, second fireproof layer; 30, first fireproof layer; 31, outer shield. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be explained more clearly and completely below in conjunction with the drawings in the embodiments. Of course, the described embodiments are only a part of the present invention but not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative labor are all within the protection scope of the present invention.

[0030] like Figure 1 As shown, the environmentally friendly flame-retardant control soft cable for electrical equipment is provided with an outer shield 31, a first fireproof layer 30 is wrapped in the outer shield 31, a second fireproof layer 29 is wrapped in the first fireproof layer 30; a flame-retardant layer 7 is wrapped in the second fireproof layer 29, a filler 28 is arranged inside the flame-retardant layer 7, and two wire cores are arranged inside the filler 28; each wire core is composed of an inner core 26 and an insulating layer 27 wrapped outside the inner core 26. The cable can provide good flame-retardant protection for the wire core in a harsh fire environment by providing two layers of fireproof components and a flame-retardant layer.

[0031] like Figures 2 to 5 As shown, the flame retardant test equipment of the environmentally friendly flame retardant control soft cable for electrical equipment includes a main body compartment 1, a side guard plate 3 is welded to the left end of the main body compartment 1, and a mounting shaft 4 is welded to the side guard plate 3; a translation control device is installed in the upper part of the main body compartment 1; the translation control device is connected to two clamping blocks 6; a flamethrower 5, a cold water pool 2 and a test assembly are installed in the lower part of the main body compartment 1 from right to left. The cable reel can be sleeved on the mounting shaft 4; the translation control device is used to drive the outer extension end of the environmentally friendly flame retardant control soft cable for electrical equipment to move. The two clamping blocks 6 can be used to clamp and fix the outer extension end of the cable. The flamethrower 5 can spray fire to test the combustion of the cable, and the cold water pool 2 can be filled with cold water to quickly cool the cable after combustion. The test assembly is used to test the toughness of the cable after combustion and rapid cooling and temperature change.

[0032] like Figure 3 and Figure 5As shown, the side guard plate 3 is fixedly mounted with an extension seat 8, and an oil cylinder 9 is hingedly mounted on the side guard plate 3, and the oil cylinder 9 is hingedly connected to a pressure rod 10 hingedly connected to the extension seat 8. The oil cylinder 9 pushes the pressure rod 10, so that the lower part of the pressure rod 10 can be pressed and fixed to the cable reel.

[0033] like Figures 2 to 4 As shown, the translation control device includes a motor 11 installed on the upper part of the main warehouse 1, a No. 1 guide rail 12, a long lead screw 24 connected to the motor 11, and a top frame 13 threadedly installed on the long lead screw 24; the top frame 13 is slidably matched with the No. 1 guide rail 12. The long lead screw 24 is rotatably installed on the main warehouse 1. That is, the top frame 13 and the subsequent two clamping blocks 6 can move horizontally under the transmission action of the lead screw nut.

[0034] like Figure 4 As shown, the translation control device also includes a hydraulic cylinder 14 and a double guide rod 15 both mounted at the lower end of the top frame 13; the hydraulic cylinder 14 is connected to a refolding frame 16 slidably connected to the double guide rod 15. The hydraulic cylinder 14 can drive the refolding frame 16 and the two clamping blocks 6 to rise and fall.

[0035] like Figure 4 As shown, guide rail No. II 17 and two cylinders 18 corresponding to and connected to the clamping blocks 6 are respectively installed at the bottom of the double-folding frame 16; the two clamping blocks 6 are both slidably installed on the guide rail No. II 17; and each clamping block 6 is provided with an arc-shaped clamping portion 6a.

[0036] Specifically, the present invention pushes and pulls the clamping block 6 through the cylinder 18, so that the arc-shaped clamping portions 6a corresponding to the two clamping blocks 6 can clamp and fix the outer extending end of the cable.

[0037] like Figure 1 As shown, a wire duct 21 is installed on the right part of the main body compartment 1. That is, the outer extension end of the cable on the cable reel can be inserted into the main body compartment 1 from the wire duct 21.

[0038] like Figure 1 and Figure 5 As shown, a rear edge plate 22 is installed at the upper end of the rear portion of the cold water pool 2, and an extension plate 23 is installed on the rear edge plate 22. The extension plate 23 is used to control the cable transportation route so that the cable line must pass through the cold water pool 2.

[0039] like Figure 5 As shown, both sides of the extension plate 23 are inclined, and the middle of the extension plate 23 is located in the cold water pool 2. That is, under the pressure of the middle of the extension plate 23, the cable must pass through the cold water in the cold water pool 2, so that the cable can be cooled quickly.

[0040] like Figure 5 and Figure 6As shown, a bottom groove 1a is opened at the bottom of the main body bin 1; the test assembly is composed of a hydraulic cylinder 25 installed at the bottom of the main body bin 1, a main slider 19 connected to the hydraulic cylinder 25, and a slide rod 20 installed at the upper end of the main slider 19; the main slider 19 is slidably installed on the bottom groove 1a.

[0041] The present invention can test the toughness of the cable after high-temperature combustion and rapid temperature change cooling by pushing the sliding rod 20 to check whether the cable is damaged when applying pressure.

[0042] Before using the present invention, it is only necessary to fill the cold water pool 2 with cold water.

[0043] The specific steps are as follows:

[0044] First, the manufactured environmentally friendly flame-retardant control soft cable for electrical equipment is rolled up on a cable reel, and the cable reel is mounted on the mounting shaft 4 .

[0045] Furthermore, the oil cylinder 9 pushes the pressure rod 10 to press the cable reel.

[0046] Furthermore, the outer extension end of the cable is manually inserted from the wire passage 21 into the main body compartment 1 , so that the outer extension end of the cable is located between the two clamping blocks 6 .

[0047] Furthermore, the cylinder 18 pushes the clamping block 6 to clamp the outer extending end of the cable.

[0048] Furthermore, the motor 11 drives the long lead screw 24 to rotate, driving the outer extension portion of the cable to move leftward.

[0049] Furthermore, when the cable is moved close to the extension plate 23, the hydraulic cylinder 14 pushes down to drive the cable to pass through the cold water. After the cable end passes over the middle of the extension plate 23 to the left, the hydraulic cylinder 14 pulls the cable end up, so that the cable always passes through the cold water for rapid cooling.

[0050] Finally, when the cable is pulled to the left and passes over the slide bar 20, the hydraulic cylinder 25 is pushed back to allow the slide bar 20 to squeeze the cable. In this case, the cable is observed to see if it is damaged to test its toughness.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flame retardant test device for an environmentally friendly flame retardant control flexible cable for electrical equipment, based on an environmentally friendly flame retardant control flexible cable for electrical equipment, the cable being provided with an outer shield (31), the outer shield (31) being wrapped with a first fireproof layer (30), the first fireproof layer (30) being wrapped with a second fireproof layer (29); the second fireproof layer (29) being wrapped with a flame retardant layer (7), the flame retardant layer (7) being provided with a filler (28), the filler (28) being provided with two wire cores; each wire core being composed of an inner core (26) and an insulating layer (27) wrapped outside the inner core (26); Features: The flame retardant test equipment comprises a main body chamber (1), a side guard plate (3) is welded to the left end of the main body chamber (1), and a mounting shaft (4) is welded to the side guard plate (3); a translation control device is installed in the upper part of the main body chamber (1); the translation control device is connected to two clamping blocks (6); a flamethrower (5), a cold water pool (2) and a test assembly are installed in the lower part of the main body chamber (1) from right to left respectively; an extension seat (8) is fixedly installed on the side guard plate (3), an oil cylinder (9) is hingedly installed on the side guard plate (3), and the oil cylinder (9) is hingedly connected to the extension seat ( 8) a hinged pressure rod (10); the translation control device includes a motor (11) installed on the upper part of the main warehouse (1), a guide rail (12), a long lead screw (24) connected to the motor (11), and a top frame (13) threadedly installed on the long lead screw (24); the top frame (13) and the guide rail (12) are slidably matched; the translation control device also includes a hydraulic cylinder (14) and a double guide rod (15) both installed at the lower end of the top frame (13); the hydraulic cylinder (14) is connected to a folding frame (16) slidably connected to the double guide rod (15).

2. The flame retardant test equipment for environmentally friendly flame retardant control flexible cables for electrical equipment according to claim 1, characterized in that: A No. II guide rail (17) and two cylinders (18) respectively connected to the clamping blocks (6) are installed at the bottom of the refolding frame (16); the two clamping blocks (6) are slidably installed on the No. II guide rail (17); and each clamping block (6) is provided with an arc-shaped clamping portion (6a).

3. The flame retardant test equipment for environmentally friendly flame retardant control flexible cables for electrical equipment according to claim 1, characterized in that: A bottom groove (1a) is formed at the bottom of the main body bin (1); the test assembly is composed of a hydraulic cylinder (25) installed at the bottom of the main body bin (1), a main slide block (19) connected to the hydraulic cylinder (25), and a slide bar (20) installed at the upper end of the main slide block (19); the main slide block (19) is slidably installed on the bottom groove (1a).

4. The flame retardant test equipment for environmentally friendly flame retardant control flexible cables for electrical equipment according to claim 1, characterized in that: A wire-passing pipe (21) is installed on the right part of the main body bin (1).

5. The flame retardant test equipment for environmentally friendly flame retardant control flexible cables for electrical equipment according to claim 1, characterized in that: A rear edge plate (22) is installed at the upper end of the rear portion of the cold water pool (2), and an extension plate (23) is installed on the rear edge plate (22).

6. The flame retardant test equipment for environmentally friendly flame retardant control flexible cables for electrical equipment according to claim 5, characterized in that: The left and right sides of the extension plate (23) are both inclined, and the middle part of the extension plate (23) is located in the cold water pool (2).

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