CN111189960A - Single cable vertical burning test device - Google Patents
Single cable vertical burning test device Download PDFInfo
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- CN111189960A CN111189960A CN202010025887.5A CN202010025887A CN111189960A CN 111189960 A CN111189960 A CN 111189960A CN 202010025887 A CN202010025887 A CN 202010025887A CN 111189960 A CN111189960 A CN 111189960A
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- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
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Abstract
The invention discloses a single cable vertical combustion test device, which relates to the field of cables and comprises a test box, wherein a combustion chamber is arranged in the test box, and the top of the combustion chamber is provided with a through hole communicated with the outside; a blowtorch; the lifting plate is internally provided with a through hole penetrating through the upper end surface and the lower end surface, and the central axis of the through hole is superposed with the central axis of the through hole; the lifting mechanism is in power connection with the lifting plate and is fixed in the test box; the clamping part is arranged in the through hole; when the cable sample passes the perforation, and extend to the downthehole back, the clamping part is fixed with the tip of cable sample, and take the cable sample to move the bottom in burning chamber through elevating system drive lift board, the blowtorch carries out combustion test to the cable sample this moment, after the test is accomplished, elevating system takes the cable sample after burning out of burning chamber, in the test process, even experimental many with the cable conductor, also need not open test instrument, the possibility that the inside poisonous gas that remains of test instrument enters into the laboratory environment has been reduced, tester's personal safety has been guaranteed.
Description
Technical Field
The invention relates to the field of cables, in particular to a single cable vertical combustion test device.
Background
The single perpendicular burning test is the conventional test item of wire and cable, need measure on special test instrument, and in the measurement process, in the cable combustion process, owing to can produce a large amount of smog and toxic gas, consequently the test instrument is airtight generally to avoid in the experimentation, toxic gas leaks, guarantees experimenter's life safety.
The applicant finds that in the testing process, due to the fact that a plurality of cables are tested, the testing instrument is inevitably required to be opened, and if the time interval between the end of the last test and the next opening of the instrument is short, toxic gas in the testing instrument is possibly not exhausted, so that after the testing instrument is opened, residual toxic gas in the testing instrument can enter a laboratory environment to affect the personal safety of laboratory personnel.
Disclosure of Invention
In view of the above, the present invention is directed to a single-cable vertical combustion testing apparatus, so as to solve the technical problem in the prior art that in the testing process, as a plurality of cables are tested, it is inevitably necessary to open a testing instrument, and if the time interval between the end of the previous test and the next opening of the testing instrument is short, toxic gas inside the testing instrument may not be exhausted, so that after the testing instrument is opened, residual toxic gas inside the testing instrument may enter a laboratory environment, which may affect the personal safety of laboratory personnel.
The invention provides a single cable vertical burning test device based on the above purpose, which comprises,
the test box is internally provided with a combustion chamber, and the top of the combustion chamber is provided with a through hole communicated with the outside;
a torch disposed within the combustion chamber;
the lifting plate is internally provided with a through hole penetrating through the upper end surface and the lower end surface, and the central axis of the through hole is superposed with the central axis of the through hole;
the lifting mechanism is in power connection with the lifting plate and is fixed in the test box;
the clamping part is arranged in the through hole and is used for clamping a cable sample;
the lifter plate contacts with the top in burning chamber, and after the cable sample passed the perforation to extend to in the through-hole, the clamping part that is located the through-hole was fixed with the tip of cable sample, and took the cable sample to move to the bottom in burning chamber through elevating system drive lifter plate, and at this moment, the blowtorch began work, carries out combustion test to the cable sample.
Furthermore, a clamping part is arranged in the through hole, and when the lifting mechanism drives the lifting plate to move to the position close to the bottom of the combustion chamber, the clamping part in the through hole fixes the upper part of the cable sample.
Furthermore, the clamping part comprises a clamping block, a spring and a first electromagnet, inner grooves are symmetrically formed in the side wall of the through hole and the side wall of the through hole respectively, the clamping block is connected with the inner grooves in a sliding mode, the first electromagnet is arranged in the side wall, facing the clamping block, in the inner grooves, the side wall is fixedly connected with one end of the spring, and the other end of the spring is fixedly connected with the bottom of the clamping block.
Further, elevating system includes motor and threaded rod, the inside symmetry in burning chamber is equipped with the side groove, the both ends and the side groove sliding connection of lifter plate, the threaded rod is located the side inslot, and the both ends of threaded rod and the upper and lower both ends in side groove pass through the bearing and are connected, and threaded rod and lifter plate threaded connection, the motor is fixed in the inside of proof box, and the output shaft of motor passes through the coupling joint with the one end of threaded rod.
Further, including gaseous check valve, the inner wall in burning chamber is equipped with the import and the export with external intercommunication, be equipped with in the import gaseous check valve for make the outside gas in burning chamber get into the burning intracavity through the import, the export passes through the exhaust system intercommunication of exhaust duct and laboratory.
Further, still include the sealed cowling, prop post and rubber band, the sealed cowling adopts the telescopic material, and the lower extreme opening of sealed cowling is fixed in the up end of proof box, and the fixed department of sealed cowling and proof box is located perforation upper end open-ended periphery, the upper end opening of sealed cowling with rubber band fixed connection, perforation upper end open-ended periphery still is equipped with a plurality of prop the post, prop the post and be located the sealed cowling, and the one end of propping the post is fixed in the up end of proof box.
Further, still include linkage post, slip post, second electro-magnet and permanent magnet, the inside inner chamber that is equipped with of test box of perforation periphery, the bottom and the inner chamber sliding connection of linkage post, the upper portion of linkage post extends to the upper portion of test box, and is located the outside of sealed cowling, the second electro-magnet is fixed in the bottom of inner chamber, the permanent magnet is fixed in the bottom of linkage post, and just to the second electro-magnet, slip post and linkage post sliding connection, and the one end of slip post is fixed in the rubber band.
Further, including the slide, the bottom in burning chamber is equipped with the standing groove, the standing groove passes the lateral wall and the outside intercommunication in burning chamber, the up end of slide is equipped with the cotton layer groove that is used for placing cotton layer, and when the slide passes through the inside that the standing groove got into burning chamber, cotton layer groove was located the burning intracavity completely.
The invention has the beneficial effects that: by adopting the single-cable vertical combustion test device, before the test, the lifting plate is contacted with the top of the combustion cavity, when a cable sample passes through the through hole and extends into the through hole, the end part of the cable sample is fixed by the clamping part positioned in the through hole, the lifting plate is driven by the lifting mechanism to move to the bottom of the combustion cavity, at the moment, the blowtorch starts to work to carry out the combustion test on the cable sample, and after the test of the cable sample is finished, the burnt cable sample is taken out of the combustion cavity by the lifting mechanism.
Drawings
FIG. 1 is a front cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic view of a cable sample entering a combustion chamber in an embodiment of the present invention;
FIG. 3 is a first schematic diagram illustrating the position of a sealing cap in an embodiment of the present invention;
FIG. 4 is a second schematic diagram illustrating the position of the sealing cap in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a slide board according to an embodiment of the present invention.
The device comprises a test box 1, a combustion chamber 2, a side groove 3, a motor 4, a threaded rod 5, a lifting plate 6, a perforation 7, a through hole 8, a clamping block 9, a placing groove 10, an inlet 11, an outlet 12, a gas one-way valve 13, an inner groove 14, a spring 15, a first electromagnet 16, a sealing cover 17, a support column 18, a rubber band 19, a linkage column 20, a sliding column 21, an inner cavity 22, a second electromagnet 23, a permanent magnet 24, a sliding plate 25, a cotton layer groove 26 and a spray lamp 27.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
In view of the above objects, a first aspect of the present invention provides an embodiment of a single cable vertical burn test apparatus, as shown in fig. 1 and 2, comprising,
the test box comprises a test box 1, a combustion chamber 2 is arranged in the test box, and a through hole 7 communicated with the outside is formed in the top of the combustion chamber 2;
a torch 27 disposed in the combustion chamber 2;
the lifting plate 6 is internally provided with a through hole 8 penetrating through the upper end surface and the lower end surface, and the central axis of the through hole 8 is superposed with the central axis of the through hole 7;
the lifting mechanism is in power connection with the lifting plate 6 and is fixed in the test box 1;
the clamping part is arranged in the through hole 8 and used for clamping a cable sample;
the lifter plate 6 contacts with the top in burning chamber 2, pass perforation 7 when the cable sample, and extend to in the through-hole 8 after, the clamping part that is located in the through-hole 8 is with the end fixing of cable sample, and drive the bottom that the cable sample moved to burning chamber 2 through lifter 6, at this moment, blowtorch 27 begins work, carry out combustion test to the cable sample, after the cable sample test is accomplished, the cable sample after rethread elevating system took out burning chamber 2 with the burning, in the test process like this, even experimental many cables, also need not open proof box 1, the possibility that the inside toxic gas that remains of proof box 1 enters into the laboratory environment has been reduced, tester's personal safety has been guaranteed.
As an embodiment, as shown in fig. 1, a clamping portion is arranged in the through hole 7, and the clamping portion in the through hole 7 has the same structure as the clamping portion in the through hole 8, when the lifting mechanism drives the lifting plate 6 to move to be close to the bottom of the combustion chamber 2, the clamping portion in the through hole 7 fixes the upper portion of the cable sample, so that if the cable has a bending phenomenon, the lifting mechanism continues to drive the lifting plate 6 to move until the bending phenomenon is eliminated, so that the cable is wholly vertical, and if the cable itself has no bending phenomenon, the lifting mechanism can stop driving for subsequent tests.
As an embodiment, as shown in fig. 1, 2 and 3, the clamping part comprises a clamping block 9, a spring 15 and a first electromagnet 16, wherein inner grooves 14 are symmetrically arranged on the side wall of the through hole 7 and the side wall of the through hole 8, the clamping block 9 is connected with the inner grooves 14 in a sliding way, the first electromagnet 16 is arranged in the side wall of the inner groove 14 facing the clamping block 9, the side wall is fixedly connected with one end of the spring 15, and the other end of the spring 15 is fixedly connected with the bottom of the clamping block 9.
In this embodiment, before the cable sample needs to be clamped, the first electromagnet 16 is powered to generate magnetic force, so as to attract the clamping blocks 9 to move towards the inner groove 14 against the elastic force of the spring 15, when the clamping blocks 9 move to the inner groove 14, the cable sample is placed between the two clamping blocks 9, then the first electromagnet 16 is powered off, and the clamping blocks 9 clamp the cable sample under the elastic force of the spring 15.
As an implementation mode, as shown in fig. 1 and 2, the lifting mechanism includes a motor 4 and a threaded rod 5, the inside symmetry of combustion chamber 2 is equipped with side groove 3, the both ends and the side groove 3 sliding connection of lifter plate 6, threaded rod 5 is located side groove 3, and the bearing is passed through with the upper and lower both ends in side groove 3 at the both ends of threaded rod 5, and threaded rod 5 and lifter plate 6 threaded connection, motor 4 is fixed in the inside of proof box 1, and the output shaft of motor 4 passes through the coupling joint with the one end of threaded rod 5.
In this embodiment, the motor 4 drives the threaded rod 5 to rotate, and then drives the lifting plate 6 to move up and down in the side groove 3.
As an embodiment, as shown in fig. 1 and 2, a gas check valve 13 is included, an inlet 11 and an outlet 12 which are communicated with the outside are arranged on the inner wall of the combustion chamber 2, the gas check valve 13 is arranged in the inlet 11, for the gas outside the combustion chamber 2 to enter the combustion chamber 2 through the inlet 11, said outlet 12 being in communication with the laboratory exhaust system through an exhaust duct, since the gas non-return valve 13 allows the gas to flow from one side only to the other, in the present device, gas can only enter the combustion chamber 2 from outside the combustion chamber 2 through the inlet 11, and therefore, when the cable sample is subjected to a combustion experiment, the combusted gas is not discharged out of the combustion chamber 2 from the combustion chamber 2 through the inlet 11, when the test is completed, the laboratory exhaust system will exhaust the toxic gases in the combustion chamber 2 out of the laboratory through the outlet 12, while air enters the combustion chamber 2 through the inlet 11.
As an embodiment, as shown in fig. 3, the test device further includes a sealing cover 17, a support column 18 and a rubber band 19, the sealing cover 17 is made of a telescopic material, a lower end opening of the sealing cover 17 is fixed on the upper end face of the test chamber 1, a fixing position of the sealing cover 17 and the test chamber 1 is located on the periphery of an upper end opening of the through hole 7, the upper end opening of the sealing cover 17 is fixedly connected with the rubber band 19, a plurality of support columns 18 are further arranged on the periphery of the upper end opening of the through hole 7, the support columns 18 are located in the sealing cover 17, and one end of the support columns 18 is fixed on the upper end face of the sealing chamber 1.
In this embodiment, before the burning test device needs to be carried out, at first strut rubber band 19, make it overlap on prop post 18, at this moment pass the cable sample behind rubber band 19, enter into through-hole 8 through perforation 7 in, when elevating system drives lifter plate 6 and moves to the combustion chamber 2 bottom, make rubber band 19 break away from prop post 18, rubber band 19 will be because the power of tightening up of self this moment, with cable sample side surface in close contact with, will form a sealed environment with sealed cowling 17 like this, avoid the poisonous gas after the burning to enter into the laboratory environment from perforation 7.
As an embodiment, as shown in fig. 4, the test chamber further includes a linkage column 20, a sliding column 21, a second electromagnet 23 and a permanent magnet 24, an inner cavity 22 is provided inside the test chamber 1 around the through hole 7, the bottom of the linkage column 20 is slidably connected with the inner cavity 22, the upper portion of the linkage column 20 extends to the upper portion of the test chamber 1 and is located outside the sealing cover 17, the second electromagnet 23 is fixed at the bottom of the inner cavity 22, the permanent magnet 24 is fixed at the bottom of the linkage column 20 and faces the second electromagnet 23, the sliding column 21 is slidably connected with the linkage column 20, and one end of the sliding column 21 is fixed to the rubber band 19.
In this embodiment, when the lifting mechanism drives the lifting plate 6 to move to the bottom of the combustion chamber 2, the second electromagnet 23 is energized to generate a repulsive force with the permanent magnet 24, so that the linkage column 20 moves upward, and the sliding column 21 drives the rubber band 19 to separate from the support column 18.
Further, including slide 25, the bottom in burning chamber 2 is equipped with standing groove 10, standing groove 10 passes the lateral wall and the outside intercommunication in burning chamber 2, the up end of slide 25 is equipped with the cotton layer groove 26 that is used for placing the cotton layer, and when slide 25 passed through standing groove 26 and got into the inside in burning chamber 2, cotton layer groove 26 was located burning chamber 2 completely, in this embodiment, owing to need observe the destructive power of the residue that the cable burning fell to the cotton layer, consequently set up above-mentioned device.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments may be combined and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides a single cable vertical burning test device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the test box (1) is internally provided with a combustion chamber (2), and the top of the combustion chamber (2) is provided with a through hole (7) communicated with the outside;
a torch (27) disposed within the combustion chamber (2);
the lifting plate (6) is internally provided with a through hole (8) penetrating through the upper end surface and the lower end surface, and the central axis of the through hole (8) is superposed with the central axis of the through hole (7);
the lifting mechanism is in power connection with the lifting plate (6) and is fixed in the test box (1);
the clamping part is arranged in the through hole (8) and is used for clamping a cable sample;
the top contact in lifter plate (6) and burning chamber (2), after the cable sample passed perforation (7) to extend to in through-hole (8), the clamping part that is located through-hole (8) is with the end fixing of cable sample, and drives lifter plate (6) through elevating system and drive the bottom that the cable sample moved burning chamber (2), and at this moment, blowtorch (27) begin work, carry out combustion test to the cable sample.
2. The vertical burning test device of claim 1, wherein: and a clamping part is arranged in the through hole (7), and when the lifting mechanism drives the lifting plate (6) to move to the bottom close to the combustion chamber (2), the clamping part in the through hole (7) fixes the upper part of the cable sample.
3. The single cable vertical burn test apparatus of claim 2, wherein: the clamping part comprises a clamping block (9), a spring (15) and a first electromagnet (16), the side wall of the through hole (7) and the side wall of the through hole (8) are respectively and symmetrically provided with an inner groove (14), the clamping block (9) is in sliding connection with the inner groove (14), the inner side wall of the inner groove (14) facing the clamping block (9) is internally provided with the first electromagnet (16), the side wall is fixedly connected with one end of the spring (15), and the other end of the spring (15) is fixedly connected with the bottom of the clamping block (9).
4. The vertical burning test device of claim 1, wherein: elevating system includes motor (4) and threaded rod (5), the inside symmetry in burning chamber (2) is equipped with side groove (3), the both ends and side groove (3) sliding connection of lifter plate (6), threaded rod (5) are located side groove (3), and the both ends of threaded rod (5) are passed through the bearing with the upper and lower both ends in side groove (3) and are connected, and threaded rod (5) and lifter plate (6) threaded connection, motor (4) are fixed in the inside of proof box (1), and the output shaft of motor (4) passes through the coupling joint with the one end of threaded rod (5).
5. The vertical burning test device of claim 1, wherein: including gaseous check valve (13), the inner wall of combustion chamber (2) is equipped with import (11) and export (12) with external intercommunication, be equipped with in import (11) gaseous check valve (13) for make combustion chamber (2) outside gas pass through in entry (11) get into combustion chamber (2), export (12) are through the exhaust system intercommunication of exhaust duct and laboratory.
6. The vertical burning test device of claim 1, wherein: still include sealed cowling (17), prop post (18) and rubber band (19), sealed cowling (17) adopt the telescopic material, and the lower extreme opening of sealed cowling (17) is fixed in the up end of proof box (1), and the fixed department of sealed cowling (17) and proof box (1) is located perforation (7) upper end open-ended periphery, the upper end opening of sealed cowling (17) with rubber band (19) fixed connection, perforation (7) upper end open-ended periphery still is equipped with a plurality of prop post (18), prop post (18) and be located sealed cowling (17), and the one end of propping post (18) is fixed in the up end of proof box (1).
7. The single cable vertical burn test apparatus of claim 6, wherein: still include linkage post (20), slip post (21), second electro-magnet (23) and permanent magnet (24), perforation (7) peripheral proof box (1) inside is equipped with inner chamber (22), the bottom and inner chamber (22) sliding connection of linkage post (20), the upper portion of linkage post (20) extend to the upper portion of proof box (1), and are located the outside of sealed cowling (17), the bottom of inner chamber (22) is fixed in second electro-magnet (23), the bottom of linkage post (20) is fixed in permanent magnet (24), and just to second electro-magnet (23), slip post (21) and linkage post (20) sliding connection, and the one end of slip post (21) is fixed in rubber band (19).
8. The vertical burning test device of claim 1, wherein: including slide (25), the bottom in burning chamber (2) is equipped with standing groove (10), lateral wall and outside intercommunication in burning chamber (2) are passed in standing groove (10), the up end of slide (25) is equipped with cotton layer groove (26) that are used for placing the cotton layer, and when slide (25) got into the inside in burning chamber (2) through standing groove (26), cotton layer groove (26) were located burning chamber (2) completely.
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| CN202010025887.5A CN111189960B (en) | 2020-01-10 | 2020-01-10 | Single cable vertical burning test device |
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| CN202010025887.5A CN111189960B (en) | 2020-01-10 | 2020-01-10 | Single cable vertical burning test device |
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| CN111189960B CN111189960B (en) | 2022-06-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112305148A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Cable quality detection system for urban rail |
| CN112305147A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Fireproof cable combustion test device |
| CN114034698A (en) * | 2021-09-28 | 2022-02-11 | 国高材高分子材料产业创新中心有限公司 | Automatic measuring method and automatic measuring device for vertical combustion |
| CN114544856A (en) * | 2022-02-24 | 2022-05-27 | 春光线缆有限公司 | Single wire and cable vertical burning testing machine convenient to use |
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| CN112305148A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Cable quality detection system for urban rail |
| CN112305147A (en) * | 2020-11-30 | 2021-02-02 | 广西顺业线缆有限公司 | Fireproof cable combustion test device |
| CN112305148B (en) * | 2020-11-30 | 2021-09-07 | 广西顺业线缆有限公司 | Cable quality detection system for urban rail |
| CN114034698A (en) * | 2021-09-28 | 2022-02-11 | 国高材高分子材料产业创新中心有限公司 | Automatic measuring method and automatic measuring device for vertical combustion |
| CN114034698B (en) * | 2021-09-28 | 2024-03-19 | 国高材高分子材料产业创新中心有限公司 | Automatic measurement method and automatic measurement device for vertical combustion |
| CN114544856A (en) * | 2022-02-24 | 2022-05-27 | 春光线缆有限公司 | Single wire and cable vertical burning testing machine convenient to use |
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