Fire resistance detection device for insulated cable

Abstract

The utility model relates to the technical field of insulated cable detection, and discloses a fire resistance detection device for insulated cables, which comprises a cabinet body, a cabinet door, a cable, a fire spraying mechanism for detecting the fire resistance of the cable, and a collecting mechanism for collecting impurities falling in the detection process. According to the utility model, when the cabinet door is opened under the driving of the power source, the fuel supply of the flaming device can be cut off, the external safety is ensured, when the cabinet door is closed, the fuel supply of the flaming device is normal, and when the cabinet door is opened, waste materials generated in the detection process can be collected and cleaned, and the cleaning speed is high.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating cable detection, in particular to a fire resistance detection device for insulating cables. Background Art

[0002] Insulated cable testing is an important step to ensure cable quality and safety. It involves a variety of testing methods, including a fire resistance test for insulated cables. The purpose of this test is to simulate the fire resistance of insulated cables in a high temperature environment of a fire, and to determine whether the insulated cables can ensure continuous power supply when burned by flames, so as to evaluate their working reliability. This is the main indicator of the performance of insulated cables.

[0003] The patent with application number CN202221887061.0 relates to a vertical combustion instrument for a single insulated wire and cable, which belongs to the field of combustion instruments, and includes a detection box, a mounting plate is provided in the detection box, and a mounting assembly is provided on the mounting plate; the mounting assembly includes a fixed block, a control block and a connecting plate, a fixed groove for placing cables is provided on the mounting plate, a mounting groove is provided on the inner wall of the fixed groove, the fixed block is slidably connected in the mounting groove, a first spring is provided between the fixed block and the bottom wall of the mounting groove, a control groove is provided on the side of the mounting plate away from the fixed block, the control block is slidably connected in the control groove, a connecting cavity is provided in the mounting plate, the control groove and the mounting groove are both connected to the connecting cavity, one end of the connecting plate is hinged to the control block, and the other end is hinged to the fixed block. Under the action of the control block, the connecting plate and the fixed block, this application realizes one-key installation and one-key removal of the cable, reduces the possibility of the operator directly touching the cable, and thus improves the safety of the operator when using the combustion instrument.

[0004] However, this patent has certain risks when used. When conducting a combustion test on the cable, the door of the detection box may accidentally open, causing flames or high temperatures to spread outside the test area through the open door, causing fire or other safety accidents.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of the utility model is to provide a fire resistance detection device for an insulated cable which can effectively solve the above technical problems.

[0007] In order to achieve the purpose of this utility model, the following technical solutions are adopted:

[0008] It includes: a cabinet body, a cabinet door, cables, a flame spraying mechanism for testing the fire resistance of the cables, and a collecting mechanism for collecting and processing impurities dropped during the testing process;

[0009] The flame spraying mechanism heats the cable while closing the cabinet door;

[0010] The collecting mechanism is used to process the impurities while opening the cabinet door;

[0011] The flame-spraying mechanism comprises a threaded rod, a threaded sleeve threadedly connected to the threaded rod, a first limit block fixedly connected to the threaded sleeve, a second limit block, a crank arm connecting rod rotatably mounted on the cabinet, a crank arm push rod fixedly connected to the threaded sleeve, a return spring fixedly mounted on the crank arm connecting rod, a flame-spraying device abutting against the crank arm connecting rod, and an arc-shaped sliding block fixedly mounted on the flame-spraying device;

[0012] The collecting mechanism comprises a sliding connecting rod, a rotating shaft 1 rotatably mounted at one end of the sliding connecting rod, a collecting plate rotatably mounted on the rotating shaft 1, a rotating shaft 2 rotatably mounted on the collecting plate, and a collecting box fixedly connected to the cabinet.

[0013] Furthermore, the return spring is arranged obliquely, and one end of the return spring is fixedly connected to the cabinet.

[0014] Furthermore, the flame-spraying device is slidably connected to the cabinet through an arc-shaped sliding block.

[0015] Furthermore, a collecting groove is provided on the surface of the collecting plate.

[0016] Furthermore, a positioning rod is fixedly connected to the cabinet, and a fixing mechanism is provided on the cabinet.

[0017] Furthermore, the fixing mechanism includes a fixing frame, a hook fixedly connected to the fixing frame, and the hook fixes the cable.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a fire resistance detection device for an insulated cable. When the cabinet door is opened under the drive of a power source, the fuel supply of the flamethrower can be cut off to ensure external safety. When the cabinet door is closed, the fuel supply of the flamethrower is normal, and when the cabinet door is opened, the waste generated during the detection process can be collected and cleaned, and the cleaning speed is fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 This is a structural schematic diagram of a fire resistance detection device for an insulated cable according to the utility model;

[0021] Figure 2This is a schematic diagram of the cross-sectional structure of a cabinet of a fire resistance detection device for an insulated cable according to the utility model;

[0022] Figure 3 The utility model is a fire resistance detection device for an insulated cable Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 This is a schematic diagram of the structure of a flame spraying mechanism of a fire resistance detection device for an insulated cable according to the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the collection plate and the collection box cooperating with each other in a fire resistance detection device for an insulated cable according to the utility model;

[0025] Figure 6 The utility model is a fire resistance detection device for an insulated cable Figure 5 Enlarged structural diagram at B in the middle.

[0026] In the figure: 1. cabinet body; 2. cabinet door; 3. flame-throwing mechanism; 31. threaded rod; 32. threaded sleeve; 33. first limit block; 34. second limit block; 35. crank arm connecting rod; 36. crank arm push rod; 37. return spring; 38. flame-throwing device; 39. arc-shaped slider; 4. positioning rod; 5. collecting mechanism; 51. sliding connecting rod; 52. rotating shaft 1; 53. collecting plate; 54. rotating shaft 2; 55. collecting box; 6. fixing mechanism; 61. fixing frame; 62. hook; 63. cable. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the utility model, rather than all embodiments.

[0028] In the description of the present utility model, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 limiting the scope of protection of the present utility model. When a mechanism is referred to as being "fixed to" another mechanism, it may be directly on the other mechanism or there may also be a centered mechanism. When a mechanism is considered to be "connected to" another mechanism, it may be directly connected to the other mechanism or there may be a centered mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it may be directly set on the other mechanism or there may be a centered mechanism at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] like Figures 1 to 6 As shown, the utility model is a fire resistance detection device for an insulated cable, comprising: a cabinet 1, a cabinet door 2, a hinged connection between the cabinet 1 and the cabinet door 2, a cable 63, a flame spraying mechanism 3 for performing fire resistance detection on the cable 63, and a collecting mechanism 5 for collecting and processing impurities dropped during the detection process;

[0030] A smoke exhaust port for exhausting waste gas is also provided above the cabinet body 1. A gas filter device can be added to the smoke exhaust port as required to prevent direct exhaust of waste gas. An observation window for manual observation of the cable 63 resistance testing process is provided on the cabinet door 2.

[0031] The flame spraying mechanism 3 heats the cable 63 while closing the cabinet door 2, ensuring that the cable 63 will not be heated when the cabinet door 2 is opened, thereby ensuring safety;

[0032] The flame-spraying mechanism 3 includes a threaded rod 31, a threaded sleeve 32 threadedly connected to the threaded rod 31, one end of the threaded rod 31 can be connected to a power source for driving the rotation thereof, and the power source is preferably a driving motor. When the threaded rod 31 rotates, it slides under the action of a first limit block 33 fixedly connected to the threaded sleeve 32, a second limit block 34, and a slide groove for sliding the second limit block 34 is provided on the cabinet door 2. The threaded sleeve 32 slides in the slide groove through the second limit block 34 and pushes the cabinet door 2 to open, and the crank arm connecting rod 35 and the crank arm connecting rod 35 installed on the cabinet body 1 are rotated. One end of 35 abuts against a crank arm push rod 36 fixedly connected to the threaded sleeve 32, a reset spring 37 fixedly installed on the crank arm connecting rod 35, the reset spring 37 is tilted, and one end of the reset spring 37 is fixedly connected to the cabinet 1, the reset spring 37 drives the crank arm connecting rod 35 to reset, a flame-spraying device 38 abutting against the crank arm connecting rod 35, and the cable 63 is heated by flame spraying, and an arc-shaped slider 39 fixedly installed on the flame-spraying device 38, the flame-spraying device 38 is slidably connected to the cabinet 1 through the arc-shaped slider 39;

[0033] The threaded rod 31 is driven by the power source to rotate, and the threaded connection between the threaded rod 31 and the threaded sleeve 32 drives the threaded sleeve 32 to slide on the surface of the cabinet 1 through the first limit block 33, and under the sliding connection between the second limit block 34 and the cabinet door 2, the cabinet door 2 is pulled closed. The threaded sleeve 32 drives the crank arm push rod 36 while moving, pushing the crank arm connecting rod 35 to rotate, and during the rotation process, it abuts against the surface of the flamethrower 38 and pushes it, driving the flamethrower 38 to rotate through the arc-shaped slider 39, so that the flamethrower 38 is vertically below the cable 63. At this time, the reset spring 37 is stretched and deformed. In the subsequent reset, the crank arm connecting rod 35 is pulled back, and the flamethrower 38 is driven to leave from below the vertical cable 63, stopping the heating of the cable 63, which has high safety.

[0034] One point that needs to be specially explained here is that the cabinet body 1 is fixedly connected with a positioning rod 4, and a micro switch is installed at one end of the positioning rod 4. When the flamethrower 38 is below the vertical cable 63, it will trigger the micro switch, and the micro switch controls the fuel input of the flamethrower 38. When the cabinet door 2 is closed, the flamethrower 38 moves to below the cable 63 and triggers the micro switch to input fuel, and then ignites to burn the cable 63. After the cabinet door 2 is opened, the flamethrower 38 stops triggering the micro switch, and the micro switch stops supplying fuel, so that the flamethrower 38 has a good fire extinguishing effect and good safety. The fuel of the flamethrower 38 is oil or gas.

[0035] The collecting mechanism 5 is used to process impurities while opening the cabinet door 2. When the cabinet door 2 is fully opened, the waste generated when the cable 63 is burned can be collected and processed;

[0036] The collecting mechanism 5 includes a sliding link 51, one end of the sliding link 51 is slidably connected to the cabinet door 2 through a slider, one end of the sliding link 51 is rotatably connected to the slider, a rotating shaft 1 52 rotatably mounted on one end of the sliding link 51, a collecting plate 53 rotatably mounted on the rotating shaft 1 52, a rotating shaft 2 54 rotatably mounted on the collecting plate 53, the rotating shaft 2 54 is rotatably connected to the cabinet 1, the axes of the rotating shaft 1 52 and the rotating shaft 2 54 are diagonally arranged, and fixedly connected to the cabinet 1 When the cabinet door 2 is closed, the waste generated when the cable 63 is heated will fall onto the surface of the collecting plate 53 for collection. When the cabinet door 2 is opened, the sliding link 51 is displaced, and the collecting plate 53 is pulled to rotate around the rotating shaft 2 54 through the rotating shaft 1 52, so that the upper surface of the collecting plate 53 changes from horizontal to vertical. At this time, the impurities on the surface of the collecting plate 53 will fall into the inside of the collecting box 55, completing the collection of the impurities on the collecting plate 53. The collecting box 55 can be directly pulled out from the side of the cabinet 1, and the cleaning speed is fast.

[0037] It should be explained here that a collecting groove is provided on the surface of the collecting plate 53, and the bottom surface of the collecting groove is an inclined surface. When the collecting plate 53 rotates, the impurities inside the collecting groove will fall into the collecting box 55, and when in use, clean water can be added to the collecting groove, so that the impurities will condense and solidify after contacting the clean water, avoiding adhesion to the surface of the collecting box 55, thereby achieving a good cleaning effect.

[0038] The cabinet 1 is provided with a fixing mechanism 6, which is used to support and fix the cable 63 to ensure that the cable 63 does not shake or fall during the test. The fixing mechanism 6 includes a fixing frame 61, a hook 62 fixedly connected to the fixing frame 61, the fixing frame 61 supports the hook 62, and the hook 62 fixes the cable 63.

[0039] Working principle:

[0040] The cable 63 is fixed on the surface of the hook 62, and then the threaded rod 31 is rotated under the drive of the power source, pulling the cabinet door 2 to close, and at the same time driving the crank arm push rod 36, pushing the crank arm connecting rod 35 to rotate, and in the process of rotation, it abuts against the surface of the flamethrower 38 and pushes it, driving the flamethrower 38 to rotate through the arc slider 39, so that the flamethrower 38 is vertical below the cable 63, and triggering the micro switch to supply fuel normally. After the test is completed, the cabinet door 2 is opened, the reset spring 37 pulls back the crank arm connecting rod 35, and drives the flamethrower 38 to leave from below the vertical cable 63, stopping the heating of the cable 63, and the sliding connecting rod 51 is displaced, and the collecting plate 53 is pulled to rotate around the rotating shaft 2 54 through the rotating shaft 1 52, so that the upper surface of the collecting plate 53 changes from horizontal to vertical. At this time, the impurities on the surface of the collecting plate 53 will fall into the inside of the collecting box 55, and the collecting box 55 can be directly drawn out from the side of the cabinet 1.

[0041] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0042] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A fire resistance detection device for an insulated cable, characterized in that: include: A cabinet body, a cabinet door, cables, a flame spraying mechanism for testing the fire resistance of the cables, and a collecting mechanism for collecting and processing impurities dropped during the testing process; The flame spraying mechanism heats the cable while closing the cabinet door; The collecting mechanism is used to process the impurities while opening the cabinet door; The flame-spraying mechanism comprises a threaded rod, a threaded sleeve threadedly connected to the threaded rod, a first limit block fixedly connected to the threaded sleeve, a second limit block, a crank arm connecting rod rotatably mounted on the cabinet, a crank arm push rod fixedly connected to the threaded sleeve, a return spring fixedly mounted on the crank arm connecting rod, a flame-spraying device abutting against the crank arm connecting rod, and an arc-shaped sliding block fixedly mounted on the flame-spraying device; The collecting mechanism comprises a sliding connecting rod, a rotating shaft 1 rotatably mounted at one end of the sliding connecting rod, a collecting plate rotatably mounted on the rotating shaft 1, a rotating shaft 2 rotatably mounted on the collecting plate, and a collecting box fixedly connected to the cabinet.

2. A fire resistance detection device for an insulated cable as claimed in claim 1, characterized in that: The return spring is arranged obliquely, and one end of the return spring is fixedly connected to the cabinet.

3. A fire resistance detection device for an insulated cable as claimed in claim 2, characterized in that: The flame spraying device is slidably connected to the cabinet through an arc-shaped sliding block.

4. The fire resistance detection device for an insulated cable according to claim 1, characterized in that: A collecting groove is provided on the surface of the collecting plate.

5. A fire resistance detection device for an insulated cable as claimed in claim 4, characterized in that: A positioning rod is fixedly connected to the cabinet, and a fixing mechanism is arranged on the cabinet.

6. A fire resistance detection device for an insulated cable as claimed in claim 5, characterized in that: The fixing mechanism comprises a fixing frame, a hook fixedly connected to the fixing frame, and the hook fixes the cable.

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