Fire resistance testing equipment for cold shrink pipe

Abstract

The utility model discloses flame retardance testing equipment for a cold shrink pipe, and relates to the technical field of testing equipment. The device comprises a detection box, an installation groove is formed in the inner wall of the detection box, a driving box is fixedly installed in the installation groove, the top of the driving box is movably connected with a [-shaped column, a supporting assembly is arranged at the bottom end of one side of the [-shaped column, and a driving assembly is fixedly installed in the driving box. The rotating end of the driving assembly is rotationally connected with the bottom end of the other side of the n-shaped column, pressure detection assemblies are arranged on the outer surface of the supporting assembly and the front face of the driving box, and a display screen is fixedly installed on the top of the detection box. According to the utility model, through mutual cooperation of the supporting assembly, the pressure detection assembly and the display screen, detection personnel can accurately know the shrinkage conditions of the cold shrink tube at different temperatures, and carry out data analysis on the overall flame retardance of the cold shrink tube, so that the detection result is accurate when the cold shrink tube is detected.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing equipment, and in particular relates to a flame retardancy testing device for a cold shrink tube. Background Art

[0002] Cold shrink tubing has a wide range of applications, mainly used in insulation protection, flame retardancy, waterproofing, moisture-proof sealing of power cables, communication cables and optical cables, and connection of wireless communication towers and exposed terminals, connectors, antennas, etc. The main features of cold shrink tubing are good insulation protection performance, excellent flame retardancy, high heat resistance and cold resistance. In order to ensure the quality of cold shrink tubing during use, the flame retardancy of the cold shrink tubing needs to be tested by flame retardancy testing equipment.

[0003] Chinese Patent Network CN219179331U discloses a flame retardant testing platform, which includes an operating table with a groove on the top and a slide extending into the groove on the front side. A collection box is slidably arranged in the slide and can slide out of or into the bottom of the groove; a gas pipe is installed on one side of the top of the operating table, and the nozzle of the gas pipe is located above the groove.

[0004] In the prior art, when testing the flame retardancy of cold shrink tubing, most methods directly spray the cold shrink tubing with flame from a flamethrower, and then visually check the deformation of the cold shrink tubing. This method prevents the inspector from accurately knowing the deformation of the cold shrink tubing, resulting in inaccurate test results.

[0005] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0006] In response to the problems in the related art, the present invention proposes a flame retardancy testing device for cold shrink tubing to overcome the above technical problems existing in the existing related art.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The utility model relates to a flame retardancy test device for cold shrinkage pipes, which comprises a detection box. An installation groove is formed in the inner wall of the detection box, a driving box is fixedly installed inside the installation groove, a U-shaped column is movably connected to the top of the driving box, a support component is arranged at the bottom end of one side of the U-shaped column, a driving component is fixedly installed inside the driving box, the rotating end of the driving component is rotatably connected to the bottom end of the other side of the U-shaped column, a pressure detection component is arranged on the outer surface of the support component and the front surface of the driving box, a display screen is fixedly installed on the top of the detection box, the display screen is electrically connected to the pressure detection component, and a flame spraying component is fixedly installed on the inner wall of the detection box.

[0009] Further, the support component comprises a moving column, a support roller is fixedly connected to one side of the moving column, a moving cavity is formed in the bottom end of one side of the U-shaped column, a moving disk is movably connected inside the moving cavity, a connecting rod is fixedly connected to the bottom of the moving disk, the bottom end of the connecting rod is fixedly connected to the moving column, and a first spring is fixedly connected between the inner wall of the moving cavity and the moving disk.

[0010] Further, the driving component comprises a T-shaped connecting disk, a rotating rod is rotatably connected to the front surface of the T-shaped connecting disk, one end of the rotating rod is rotatably connected to the bottom end of the other side of the U-shaped column, there are multiple U-shaped columns, and there are also multiple rotating rods corresponding to the U-shaped columns.

[0011] Further, the driving component further comprises an installation frame, the installation frame is fixedly installed on the front surface of the driving box, an electric push rod is fixedly installed inside the installation frame, and the output end of the electric push rod penetrates through the installation frame and the driving box and is fixedly connected to the T-shaped connecting disk together.

[0012] Further, the pressure detection component comprises a pressure sensor, the pressure sensor is fixedly installed on the front surface of the driving box, a support plate is fixedly connected to one side of the moving column, a T-shaped limiting column is movably connected to the top of the support plate, the bottom end of the T-shaped limiting column penetrates through the support plate and contacts the pressure sensor, and a second spring is fixedly connected between the support plate and the T-shaped limiting column.

[0013] Further, the flame spraying component comprises a fixed clamping ring, a gas torch is fixedly installed inside the fixed clamping ring, a gas pipe is fixedly connected to the rear end of the gas torch, a gas tank is arranged outside the detection box, one end of the gas pipe penetrates through the detection box and is arranged at the top end of the gas tank, and a control valve is arranged on the outer surface of the gas pipe.

[0014] Further, an electrically attracted door is rotatably connected to the front surface of the detection box, an observation slot is formed in the front surface of the electrically attracted door, and a high-temperature resistant glass is fixedly connected to the inner wall of the observation slot.

[0015] The utility model has the following beneficial effects:

[0016] 1. When the cold - shrinkable tube of the present utility model is subjected to high temperature, it will shrink. The shrunk cold - shrinkable tube can squeeze the support component, enabling the support component to move and squeeze the pressure - detection component. At this time, the display screen can display this change through the pressure - detection component, and at the same time, start to detect the cold - shrinkable tube and display the time taken for the change to occur. At this time, the tester can compare the data of the normal cold - shrinkage of the cold - shrinkable tube with the detected data, enabling the operator to intuitively judge the flame - retardant property of the cold - shrinkable tube. When conducting the test, the operator can also control the temperature of the flame ejected by the flame - spraying component, so as to collect the data of the changes of the cold - shrinkable tube at different temperatures. The above settings enable the tester to accurately know the changes of the cold - shrinkable tube at different temperatures, making the test results more accurate when detecting the cold - shrinkable tube.

[0017] 2. When supporting the cold - shrinkable tube of the present utility model, directly start the electric push rod, which enables the electric push rod to push the T - shaped connecting plate. The T - shaped connecting plate moves inside the drive box and pushes one end of the rotating rod. At this time, the rotating rod rotates under the push of the T - shaped connecting plate, and the other end of the rotating rod can push the C - shaped column upward to the outside of the drive box, enabling the C - shaped column to move the support roller through the moving column and complete the support of the cold - shrinkable tube. Since all the rotating rods inside the drive box are rotatably connected to the T - shaped connecting plate, when the T - shaped connecting plate moves, all the rotating rods can带动 the corresponding C - shaped columns to move. Coupled with the fact that the electric push rod can push the T - shaped connecting plate, it is more convenient to support and fix the cold - shrinkable tube.

[0018] Of course, when implementing any product of the present utility model, it is not necessarily required to achieve all the above - mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the external contour structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the detection box of the present utility model;

[0022] [[ID=​

[0023] Figure 4 This is a schematic diagram of the drive box structure of the utility model;

[0024] Figure 5 This is a schematic cross-sectional view of the drive box of the present utility model;

[0025] Figure 6 This is a schematic diagram of the support assembly structure of the utility model;

[0026] Figure 7 For the utility model Figure 6 A is an enlarged structural diagram.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1. Detection box; 2. Mounting slot; 3. Drive box; 4. T-shaped column; 5. Support assembly; 501. Moving column; 502. Support roller; 503. Moving cavity; 504. Moving disk; 505. Connecting rod; 506. First spring; 6. Drive assembly; 601. T-shaped connecting disk; 602. Rotating rod; 603. Mounting bracket; 604. Electric push rod; 7. Pressure detection assembly; 701. Pressure sensor; 702. Support plate; 703. T-shaped limit column; 704. Second spring; 8. Display screen; 9. Flame spray assembly; 901. Fixed clamp; 902. Flame spray gun; 903. Air pipe; 904. Gas tank; 905. Control valve; 10. Electric suction door; 11. Observation slot; 12. High-temperature resistant glass. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.

[0030] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0031] See also Figure 1-Figure 7As shown in the figure, the utility model is a flame retardancy testing device for cold shrinkable tubes, including a detection box 1. An installation groove 2 is formed in the inner wall of the detection box 1. A driving box 3 is fixedly installed inside the installation groove 2. A U-shaped column 4 is movably connected to the top of the driving box 3. A support component 5 is arranged at the bottom end of one side of the U-shaped column 4. A driving component 6 is fixedly installed inside the driving box 3. The rotating end of the driving component 6 is rotatably connected to the bottom end of the other side of the U-shaped column 4. A pressure detection component 7 is arranged on the outer surface of the support component 5 and the front surface of the driving box 3. A display screen 8 is fixedly installed on the top of the detection box 1. The display screen 8 is electrically connected to the pressure detection component 7. A flame spraying component 9 is fixedly installed on the inner wall of the detection box 1.

[0032] When detecting the flame retardancy of the cold shrinkable tube, directly put the cold shrinkable tube on the support component 5, and then drive multiple U-shaped columns 4 through the driving component 6, so that the U-shaped columns 4 drive the corresponding support components 5 to move and support the cold shrinkable tube. Next, directly start the flame spraying component 9, so that the flame spraying component 9 sprays the flame onto the cold shrinkable tube. When the cold shrinkable tube is heated, it starts to shrink and squeezes the support component 5. At this time, the pressure detection component 7 can display the value of the pressure change received by the support component 5 on the display screen 8. At the same time, the value of how long it takes for the cold shrinkable tube to start shrinking after being heated will also be displayed on the display screen 8. Then, the tester judges the flame retardancy of the cold shrinkable tube according to the values displayed on the display screen.

[0033] When the cold shrinkable tube is heated, it will shrink. The shrinking cold shrinkable tube can squeeze the support component 5, so that the support component 5 can move and squeeze the pressure detection component 7. At this time, the display screen 8 can display this change through the pressure detection component 7. At the same time, the time from the start of detecting the cold shrinkable tube to the occurrence of the change is also displayed. At this time, the tester can compare the normal cold shrinkage data of the cold shrinkable tube with the detected data, so that the operator can intuitively judge the flame retardancy of the cold shrinkable tube. When detecting, the operator can also control the temperature of the flame sprayed by the flame spraying component 9, so as to collect the data of the changes of the cold shrinkable tube at different temperatures. The above settings enable the tester to accurately know the changes of the cold shrinkable tube at different temperatures, so that the detection result when detecting the cold shrinkable tube is relatively accurate.

[0034] In one embodiment, for the above-mentioned support component 5, the support component 5 includes a moving column 501. One side of the moving column 501 is fixedly connected with a support roller 502. A moving cavity 503 is formed at the bottom end of one side of the U-shaped column 4. A moving disk 504 is movably connected inside the moving cavity 503. The bottom of the moving disk 504 is fixedly connected with a connecting rod 505. The bottom end of the connecting rod 505 is fixedly connected with the moving column 501. A first spring 506 is fixedly connected between the inner wall of the moving cavity 503 and the moving disk 504.

[0035] When the cold-shrinkable tube contracts, it can squeeze the support roller 502. At this time, the support roller 502 drives the moving column 501 to move downward. While the moving column 501 moves downward, it drives the moving disk 504 to move inside the moving cavity 503 through the connecting rod 505 and makes the moving disk 504 squeeze the first spring 506. The settings of the moving column 501, the connecting rod 505, the moving disk 504 and the first spring 506 enable the U-shaped column 4 to drive the support roller 502 on the moving column 501 to complete the support of the cold-shrinkable tube. At the same time, when the cold-shrinkable tube shrinks, the support roller 502 can move downward normally, so that the detection can be carried out normally.

[0036] In one embodiment, for the above-mentioned driving component 6, the driving component 6 includes a T-shaped connecting disk 601. The front surface of the T-shaped connecting disk 601 is rotatably connected with a rotating rod 602. One end of the rotating rod 602 is rotatably connected with the bottom end of the other side of the U-shaped column 4. There are multiple U-shaped columns 4, and there are also multiple rotating rods 602 corresponding to the U-shaped columns 4. The driving component 6 further includes a mounting frame 603. The mounting frame 603 is fixedly installed on the front surface of the driving box 3. An electric push rod 604 is fixedly installed inside the mounting frame 603. The output end of the electric push rod 604 penetrates through the mounting frame driving box 3 and is fixedly connected with the T-shaped connecting disk 601 together.

[0037] When supporting the cold shrinkage tube, the electric push rod 604 is directly started, so that the electric push rod 604 pushes the T-shaped connecting plate 601. The T-shaped connecting plate 601 moves inside the driving box 3 and pushes one end of the rotating rod 602. At this time, the rotating rod 602 rotates under the push of the T-shaped connecting plate 601. The other end of the rotating rod 602 that rotates can push the U-shaped column 4 upward to the outside of the driving box 3, so that the U-shaped column 4带动支撑辊502进行移动并完成对冷缩管的支撑,由于驱动盒3内部所有的转杆602均与T型连接盘601转动连接在一起,从而使得T型连接盘601进行移动时所有的转杆602可以带动对应的匚型柱4进行移动,加上电动推杆604可以对T型连接盘601进行推动,从而使得在对冷缩管进行支撑固定时比较的便捷。

[0038] In one embodiment, for the above-mentioned pressure detection component 7, the pressure detection component 7 includes a pressure sensor 701. The pressure sensor 701 is fixedly installed on the front surface of the driving box 3. One side of the moving column 501 is fixedly connected with a support plate 702. The top of the support plate 702 is movably connected with a T-shaped limit column 703. The bottom end of the T-shaped limit column 703 penetrates through the support plate 702 and contacts the pressure sensor 701. A second spring 704 is fixedly connected between the support plate 702 and the T-shaped limit column 703.

[0039] After the support roller 502 completes the support of the cold shrinkage tube, the second spring 704 pulls the T-shaped limit column 703 downward and makes the T-shaped limit column 703 contact the pressure sensor 701. When the support roller 502 is squeezed and moves towards the middle position inside the cold shrinkage hanging tube, the moving column 501 can带动支撑板702一起进行移动,此时支撑板702可以通过第二弹簧704对T型限位柱703进行拉动并使得T型限位柱703对压力传感器701的挤压力增强,此时压力传感器701可以将T型限位柱703对其的压力变化通过显示屏8显示出来,支撑板702, T型限位柱703和第二弹簧704的设置使得支撑辊502在受到冷缩管的挤压力后压力传感器701可以直接将这一变化给感应到,从而使得在对冷缩管进行检测时得出的检测数据精确度较高。

[0040] It should be noted that there seems to be some incorrect or incomplete expressions in the original Chinese text, such as "带动支撑辊502进行移动并完成对冷缩管的支撑" in the first paragraph and "带动支撑板702一起进行移动" in the sixth paragraph. I have translated it as accurately as possible according to the existing text.In one embodiment, the flame spray assembly 9 includes a fixed clamp 901, a flame spray gun 902 is fixedly installed inside the fixed clamp 901, and a gas pipe 903 is fixedly connected to the rear end of the flame spray gun 902. A gas tank 904 is provided on the outside of the detection box 1, one end of the gas pipe 903 passes through the detection box 1 and is provided at the top of the gas tank 904, and a control valve 905 is provided on the outer surface of the gas pipe 903.

[0041] The gas inside the gas tank 904 can flow into the flamethrower 902 through the gas pipe 903. At the same time, the flamethrower 902, with the assistance of the fuel, sprays the flame onto the outer surface of the supported cold shrink tube, so that the cold shrink tube can be tested for flame retardancy. The setting of the fixing clamp 901 makes it convenient to disassemble the flamethrower 902. The setting of the control valve 905 allows the tester to control the flow rate of the gas so that the temperature of the flame sprayed by the flamethrower 902 can be adjusted, so that the cold shrink tube can be tested at different flame temperatures, thereby making the final test result more accurate.

[0042] In one embodiment, for the above-mentioned detection box 1, the front of the detection box 1 is rotatably connected to an electric suction door 10, the front of the electric suction door 10 is provided with an observation slot 11, and the inner wall of the observation slot 11 is fixedly connected to a high-temperature resistant glass 12.

[0043] When testing the cold shrink tube, the electric suction door 10 can be closed so that the flame sprayed by the flame gun 902 will not accidentally injure the tester. At the same time, the tester can view the test process inside the test box through the high temperature resistant glass 12.

[0044] Through the above technical solutions: 1. When the cold-shrinkable tube is heated, it will shrink. The shrunk cold-shrinkable tube can squeeze the support component 5, enabling the support component 5 to move and squeeze the pressure detection component 7. At this time, the display screen 8 can display this change through the pressure detection component 7, and at the same time, start detecting the cold-shrinkable tube and display the time it takes to change. At this time, the tester can compare the normal cold-shrinking data of the cold-shrinkable tube with the detected data, enabling the operator to intuitively judge the flame retardancy of the cold-shrinkable tube. When conducting the test, the operator can also control the temperature of the flame sprayed by the flame spraying component 9 to collect data on the changes of the cold-shrinkable tube at different temperatures. The above settings enable the tester to accurately know the changes of the cold-shrinkable tube at different temperatures, making the test results more accurate when detecting the cold-shrinkable tube; 2. When supporting the cold-shrinkable tube, directly start the electric push rod 604, enabling the electric push rod 604 to push the T-shaped connecting plate 601. The T-shaped connecting plate 601 then moves inside the drive box 3 and pushes one end of the rotating rod 602. At this time, the rotating rod 602 rotates under the push of the T-shaped connecting plate 601, and the other end of the rotating rod 602 can push the U-shaped column 4 upward to the outside of the drive box 3, enabling the U-shaped column 4 to drive the support roller 502 to move through the moving column 501 and complete the support of the cold-shrinkable tube. Since all the rotating rods 602 inside the drive box 3 are rotatably connected to the T-shaped connecting plate 601, when the T-shaped connecting plate 601 moves, all the rotating rods 602 can drive the corresponding U-shaped columns 4 to move. Coupled with the fact that the electric push rod 604 can push the T-shaped connecting plate 601, it is more convenient to support and fix the cold-shrinkable tube.

[0045] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] The preferred embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The preferred embodiments do not describe all details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. This specification selects and describes these embodiments in detail to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A flame retardancy test device for cold shrink tubing, comprising a test box (1), characterized in that: The inner wall of the detection box (1) is provided with an installation groove (2). A drive box (3) is fixedly installed inside the installation groove (2). The top of the drive box (3) is movably connected with a U-shaped column (4). A support component (5) is arranged at the bottom end of one side of the U-shaped column (4). A drive component (6) is fixedly installed inside the drive box (3). The rotating end of the drive component (6) is rotatably connected with the bottom end of the other side of the U-shaped column (4). A pressure detection component (7) is arranged on the outer surface of the support component (5) and the front of the drive box (3). A display screen (8) is fixedly installed on the top of the detection box (1). The display screen (8) is electrically connected with the pressure detection component (7). A flame spraying component (9) is fixedly installed on the inner wall of the detection box (1).

2. The flame retardancy testing equipment for cold shrink tubing according to claim 1, characterized in that: The support component (5) includes a moving column (501). A support roller (502) is fixedly connected to one side of the moving column (501). A moving cavity (503) is opened at the bottom end of one side of the U-shaped column (4). A moving disk (504) is movably connected inside the moving cavity (503). A connecting rod (505) is fixedly connected to the bottom of the moving disk (504). The bottom end of the connecting rod (505) is fixedly connected with the moving column (501). A first spring (506) is fixedly connected between the inner wall of the moving cavity (503) and the moving disk (504).

3. The flame retardancy testing equipment for cold shrink tubing according to claim 2, characterized in that: The drive component (6) includes a T-shaped connecting disk (601). A rotating rod (602) is rotatably connected to the front of the T-shaped connecting disk (601). One end of the rotating rod (602) is rotatably connected with the bottom end of the other side of the U-shaped column (4). There are multiple U-shaped columns (4), and multiple rotating rods (602) are correspondingly arranged for the U-shaped columns (4).

4. The flame retardancy testing equipment for cold shrink tubing according to claim 3, characterized in that: The drive component (6) further includes a mounting frame (603). The mounting frame (603) is fixedly installed on the front of the drive box (3). An electric push rod (604) is fixedly installed inside the mounting frame (603). The output end of the electric push rod (604) penetrates through the mounting frame and the drive box (3) and is fixedly connected with the T-shaped connecting disk (601).

5. The flame retardancy testing equipment for cold shrink tubing according to claim 4, characterized in that: The pressure detection component (7) includes a pressure sensor (701). The pressure sensor (701) is fixedly installed on the front of the drive box (3). A support plate (702) is fixedly connected to one side of the moving column (501). A T-shaped limiting column (703) is movably connected to the top of the support plate (702). The bottom end of the T-shaped limiting column (703) penetrates through the support plate (702) and contacts the pressure sensor (701). A second spring (704) is fixedly connected between the support plate (702) and the T-shaped limiting column (703).

6. The flame retardancy testing equipment for cold shrink tubing according to claim 5, characterized in that: The flame spray assembly (9) comprises a fixed snap ring (901), a flame spray gun (902) is fixedly mounted inside the fixed snap ring (901), a gas pipe (903) is fixedly connected to the rear end of the flame spray gun (902), a gas tank (904) is arranged outside the detection box (1), one end of the gas pipe (903) passes through the detection box (1) and is arranged at the top end of the gas tank (904), and a control valve (905) is arranged on the outer surface of the gas pipe (903).

7. The flame retardancy testing equipment for cold shrink tubing according to claim 6, characterized in that: The front of the detection box (1) is rotatably connected to an electric suction door (10), and an observation slot (11) is provided on the front of the electric suction door (10). The inner wall of the observation slot (11) is fixedly connected to a high-temperature resistant glass (12).

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