Bunched cable combustion testing machine with automatic hoisting function

Abstract

The utility model relates to the technical field of cable combustion testing, in particular to a bunched cable combustion testing machine with an automatic lifting function, which comprises a testing machine body, a hanging ladder for fixing a cable is arranged in the testing machine body, and a supporting piece for hanging the hanging ladder is fixedly mounted at the top end of the inner side of the testing machine body. One end of the hanging ladder is connected with a traction piece, and the testing machine body is further provided with a driving source which drives the traction piece to be rolled up so as to pull up the hanging ladder to be hung on the supporting piece. The supporting piece for hanging the hanging ladder is fixedly installed at the top end of the inner side of the testing machine body, and the traction piece and the driving source are connected to the supporting piece, so that automatic lifting of the hanging ladder is achieved, the operation efficiency is improved, and the labor intensity of workers is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cable combustion tests, in particular to a bundled cable combustion tester with an automatic lifting function. BACKGROUND

[0002] The bundled cable combustion tester is a professional equipment for evaluating the combustion performance of cables in a bundled laying state, and is used for carrying out flame-retardant property tests on bundled flame-retardant cables to determine the ability of the cables to inhibit vertical flame spread, thereby providing important data support for quality evaluation and safety performance guarantee of the cables.

[0003] The bundled cable combustion tester comprises a test box, an air source for providing oxygen, an ignition source for providing an initial fire source, and a steel ladder for fixing the cable, so as to simulate an actual use scene.

[0004] After the cable is fixed at the top end of the steel ladder, the steel ladder is manually hung at the top end of the inside of the test box.

[0005] Therefore, a bundled cable combustion tester with an automatic lifting function is needed to solve the problem of time-consuming and laborious manual hanging of the steel ladder at the top end of the inside of the test box. CONTENT OF THE INVENTION

[0006] In order to automatically lift the steel ladder to the highest position in the test box, the application provides a bundled cable combustion tester with an automatic lifting function.

[0007] The bundled cable combustion tester with an automatic lifting function provided by the application adopts the following technical scheme:

[0008] The bundled cable combustion tester with an automatic lifting function comprises a tester body, a hanging ladder for fixing the cable is arranged in the tester body, a support for hanging the hanging ladder is fixedly installed at the top end of the inside of the tester body, one end of the hanging ladder is connected with a traction member, and the tester body is further provided with a driving source for driving the traction member to be wound to pull up the hanging ladder to be hung on the support.

[0009] By adopting the above technical scheme, the driving source drives the traction member to be wound, drives the hanging ladder to be automatically hung on the supporting member, the top end of the cable is kept at the highest position of the tester body, the bottom end of the cable naturally falls down, the burning test is facilitated, the supporting member is arranged to stably suspend the hanging ladder inside the tester body, the position of the cable in the burning test is ensured to be fixed, compared with the prior art, the traction member cooperates with the driving source to realize automatic lifting of the hanging ladder, and then automatic lifting or lowering of the cable is realized, test efficiency is improved, and manual labor intensity is reduced.

[0010] Optionally, the tester body is provided with a movable channel for the traction member to penetrate in and out of the tester body.

[0011] By adopting the above technical scheme, the movable channel is arranged to enable the traction member to smoothly penetrate in and out of the tester body, to ensure smooth winding and releasing of the traction member, and to ensure stability and reliability of the tester.

[0012] Optionally, a fire cover is arranged on the movable channel.

[0013] By adopting the above technical scheme, the fire cover can effectively prevent flame from spreading and block smoke from spreading around, avoid affecting the external environment caused by the cable burning test, and improve the safety performance of the tester.

[0014] Optionally, the top surface of the fire cover is provided with a smoke exhaust pipe in communication with the movable channel.

[0015] By adopting the above technical scheme, the arrangement of the smoke exhaust pipe guides the smoke to be concentrated and discharged, ensures smooth smoke discharge process, and further enhances the stability and reliability of the test process.

[0016] Optionally, a filter assembly for filtering smoke dust particles is arranged in the smoke exhaust pipe.

[0017] By adopting the above technical scheme, the filter assembly is arranged in the smoke exhaust pipe, which can filter out smoke dust particles and reduce pollution of the surrounding atmosphere caused by the cable burning test.

[0018] Optionally, a guide assembly for guiding the traction member is mounted on the tester body, the guide assembly comprises a first guide wheel located outside the tester body and a second guide wheel located inside the tester body, the first guide wheel is rotationally connected with a first support rod fixed on the tester body, and the second guide wheel is rotationally connected with a second support rod fixed on the tester body.

[0019] By adopting the technical scheme, the guide assembly can effectively guide the traction member, so that the movement path of the traction member remains stable, and the traction member will not deviate or jam during the winding and releasing process, thereby improving the stability of the hanging ladder lifting process, and the first guide wheel and the second guide wheel are respectively located inside and outside the testing machine body, further ensuring smooth operation of the traction member and prolonging the service life of the traction member.

[0020] Optionally, the hanging ladder comprises a hanging rod hung on the support, and the support is recessed to form a groove matched with the hanging rod.

[0021] By adopting the technical scheme, the hanging rod of the hanging ladder can accurately fall into the groove of the support when the hanging ladder is lifted to the support, and the hanging rod is matched with the shape of the groove, so that the hanging ladder is stably hung on the support, and the test result is prevented from being affected due to loosening or falling of the hanging ladder.

[0022] Optionally, the testing machine body further comprises a fire gun and a mobile cart on which the fire gun is placed, and the mobile cart is placed in the testing machine body.

[0023] By adopting the technical scheme, the mobile cart can realize flexible movement of the fire gun, and the position of the fire gun can be adjusted in the testing machine, thereby improving the operation convenience and safety in the test process.

[0024] Optionally, an entrance and exit for the hanging ladder to enter or exit the testing machine body is arranged on the testing machine body, and an entrance and exit door is rotatably installed at the entrance and exit.

[0025] By adopting the technical scheme, the hanging ladder can enter or exit the testing machine body through the entrance and exit, and the entrance and exit door realizes isolation of the testing machine body from the outside, thereby ensuring the stability and safety of the test.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The traction member cooperates with the driving source to realize automatic lifting of the hanging ladder, and then realizes automatic lifting or lowering of the cable, thereby improving the test efficiency and reducing the labor intensity;

[0028] 2. The fireproof cover can effectively prevent the flame from spreading and block the smoke from spreading to the surrounding, thereby avoiding pollution of the surrounding atmosphere caused by the cable burning test, and improving the safety performance of the testing machine;

[0029] 3. The mobile cart can realize flexible movement of the fire gun, and the position of the fire gun can be adjusted in the testing machine, thereby improving the operation convenience and safety in the test process. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of an embodiment of the present application;

[0031] Figure 2 It is a partial sectional view of the embodiment of the present application, which is used to show the positional relationship of the filtering assembly.

[0032] Reference signs: 1, test machine body; 2, hook; 3, steel ladder; 4, steel rope; 5, electric hoist; 6, hanging rod; 7, groove; 8, blocking piece; 9, movable channel; 10, fireproof cover; 11, smoke exhaust duct; 12, filtering assembly; 13, filtering screen; 14, ceramic fiber; 15, guide assembly; 16, first guide wheel; 17, second guide wheel; 18, first support rod; 19, second support rod; 20, annular wheel groove; 21, moving cart; 22, flame gun; 23, inlet and outlet; 24, inlet and outlet door. DETAILED DESCRIPTION

[0033] The following will be described in detail in combination with the accompanying drawings. Figures 1-2 The present application will be further described in detail.

[0034] Embodiment:

[0035] A bundled cable burning test machine with automatic lifting function, referring to Figure 1 , including a test machine body 1, a hanging ladder is placed in the test machine body 1, a support piece is fixed at the top end of the inner side of the test machine body 1, the test machine body 1, the hanging ladder and the support piece are all made of insulating material, in this embodiment, the material of the test machine body 1, the hanging ladder and the support piece is stainless steel, the support piece is a hook 2, the hanging ladder is a steel ladder 3, the hook 2 is fixed in the inner side of the test machine body 1 by welding, the top end of the steel ladder 3 is fixed with a traction piece, a driving source is provided outside the test machine body 1, the end of the traction piece away from the steel ladder 3 extends out of the test machine body 1 and is fixed with the driving source, in this embodiment, the traction piece is a steel rope 4, the driving source is an electric hoist 5, one end of the steel rope 4 is fixed with a winding drum on the electric hoist 5, after starting the electric hoist 5, the winding drum rotates to drive the steel rope 4 to be wound to lift the steel ladder 3 and hang it on the hook 2.

[0036] Referring to Figure 1 and Figure 2 , the steel ladder 3 includes a hanging rod 6 at the top end, the top surface of the hook 2 is recessed to form a groove 7, the size and shape of the hanging rod 6 are matched with the groove 7, the hanging rod 6 falls into the groove 7 to realize that the steel ladder 3 is hung on the hook 2, a blocking piece 8 is welded at the bottom of the inner side of the test machine body 1, the blocking piece 8 is made of stainless steel, the bottom end of the steel ladder 3 abuts against the blocking piece 8 to keep the position of the steel ladder 3 stable.

[0037] Referring to Figure 1 and Figure 2The top end of the testing machine body 1 is provided with a movable channel 9, the steel rope 4 penetrates the testing machine body 1 from the inside to the outside through the movable channel 9, the testing machine body 1 is fixedly connected with a fireproof cover 10, the fireproof cover 10 is covered on the movable channel 9, in this embodiment, the fireproof cover 10 is an aluminum alloy fireproof cover, so that the mass of the fireproof cover 10 is lighter, and the fireproof cover 10 is stably covered directly above the movable channel 9, and the surface of the fireproof cover 10 is coated with fireproof paint to enhance the fireproof performance of the fireproof cover 10.

[0038] With reference to Figure 1 and Figure 2 The top surface of the fireproof cover 10 is provided with a smoke exhaust pipeline 11 in communication with the movable channel 9, the smoke exhaust pipeline 11 is a metal pipeline, the smoke exhaust pipeline 11 is provided with a filter assembly 12, the filter assembly 12 includes two filter screen plates 13, the filter screen plates 13 are metal screen plates, the filter screen plates 13 are fixed on the inner wall of the smoke exhaust pipeline 11 by welding, and the filter screen plates 13 are filled with ceramic fibers 14, the ceramic fibers 14 are accumulated into a lump shape, so that the ceramic fibers 14 are prevented from falling off the filter screen plates 13, the fiber structure of the ceramic fibers 14 can filter particles in smoke, and atmospheric pollution caused by the test to the surrounding environment is reduced.

[0039] With reference to Figure 1 and Figure 2 The testing machine body 1 is provided with a guide assembly 15, the guide assembly 15 includes a first guide wheel 16 and a second guide wheel 17, the testing machine body 1 is fixedly connected with a first supporting rod 18 outside, the first guide wheel 16 is rotatably connected to the first supporting rod 18, the testing machine body 1 is fixedly connected with a second supporting rod 19 inside, the second guide wheel 17 is rotatably connected to the second supporting rod 19, and the first guide wheel 16 and the second guide wheel 17 are provided with annular wheel grooves 20, and the steel rope 4 is wound in the annular wheel grooves 20 on the first guide wheel 16 and the second guide wheel 17.

[0040] With reference to Figure 1 Figure 2 Figure 1 The testing machine body 1 is provided with a movable cart 21, the movable cart 21 is provided with a fire gun 22, the position of the movable cart 21 is adjusted, so that the fire gun 22 moves to the front of the cable, one end of the testing machine body 1 is provided with an entrance and exit 23, the entrance and exit 23 is hinged with an entrance and exit door 24, and the movable cart 21 and the steel ladder 3 enter or move out of the testing machine body 1 through the entrance and exit 23.

[0041] The principle of the embodiment of the application is that the steel rope 4 is fixed on the steel ladder 3, the cable is fixed to the top end of the steel ladder 3, the electric hoist 5 is driven to wind the steel rope 4, the steel rope 4 lifts the steel ladder 3 to be hung on the hook 2, the hanging rod 6 on the steel ladder 3 is embedded into the groove 7 on the hook 2, the bottom end of the steel ladder 3 abuts against the blocking piece 8, the bottom end of the cable naturally falls, the mobile trolley 21 provided with the fire gun 22 is pushed into the test machine body 1 from the access door 24, the position of the mobile trolley 21 is adjusted, the fire gun 22 is located in front of the bottom end of the cable, the access door 24 is closed, and then the fire gun 22 is started, and the cable is ignited to perform the burning test.

[0042] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A bundled cable burning tester with automatic lifting function, comprising a tester body (1), a hanging ladder for fixing cables is arranged in the tester body (1), characterized in that: The test machine body (1) is internally fixedly provided with a support for hanging a ladder, one end of the ladder is connected with a traction member, the test machine body (1) is further provided with a driving source for driving the traction member to be wound to pull up the ladder to be hung on the support.

2. The bundled cable burning tester with automatic lifting function according to claim 1, characterized in that: The test machine body (1) is provided with a movable channel (9) for the traction member to pass through the test machine body (1) internally and externally.

3. The bundled cable burning tester with automatic lifting function according to claim 2, characterized in that: The movable channel (9) is covered with a fireproof cover (10).

4. The bundled cable burning tester with automatic lifting function according to claim 3, characterized in that: The top surface of the fireproof cover (10) is provided with a smoke exhaust duct (11) in communication with the movable channel (9).

5. The bundled cable burning tester with automatic lifting function according to claim 4, characterized in that: The smoke exhaust duct (11) is internally provided with a filter assembly (12) for filtering smoke dust particles.

6. The bundled cable burning tester with automatic lifting function according to claim 1, characterized in that: The test machine body (1) is provided with a guide assembly (15) for guiding the traction member, the guide assembly (15) comprises a first guide wheel (16) located externally of the test machine body (1) and a second guide wheel (17) located internally of the test machine body (1), the first guide wheel (16) is rotatably connected with a first support rod (18) fixed on the test machine body (1), and the second guide wheel (17) is rotatably connected with a second support rod (19) fixed on the test machine body (1).

7. The bundled cable burning tester with automatic lifting function according to claim 1, characterized in that: The ladder comprises a hanging rod (6) hung on the support, and the support is recessed to form a groove (7) matched with the hanging rod (6).

8. The bundled cable burning tester with automatic lifting function according to claim 1, characterized in that: The test machine body (1) further comprises a fire gun (22) and a movable trolley (21) for placing the fire gun (22), and the movable trolley (21) is placed in the test machine body (1).

9. The bundled cable burning tester with automatic lifting function according to claim 1, characterized in that: The test machine body (1) is provided with an entrance and exit (23) for the ladder to enter and exit, and the entrance and exit (23) is rotatably provided with an entrance and exit door (24).

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