Test device for simulating vertical combustion of cable
By simulating the vertical combustion test device of the cable, the combustion test is directly carried out on the outer sheath, which solves the problems of time-consuming and labor-intensive cable product production and high testing costs in the existing technology, and realizes a simple and efficient testing method.
Patent Information
- Application Number
- CN202521577392.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2035-07-28
AI Technical Summary
In the prior art, the vertical burning test of cables requires the production of finished cables first, which is a time-consuming, labor-intensive and costly process.
A simulated cable vertical combustion test device is provided. Through the combination of a mounting frame, a core column, a fire supply component and a detection component, the finished cable structure is directly simulated, the test process is simplified, and a combustion test is directly performed on the outer sheath.
The cable vertical combustion test process is simplified, costs are saved, the time and cost of producing finished cable products are reduced, and test efficiency is improved.
Smart Images
Figure CN223332961U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vertical burning test of cables, and in particular to a device for simulating vertical burning test of cables. Background Art
[0002] At present, vertical combustion tests are carried out on cables, through which the flame retardant properties of the cable outer sheath material can be obtained.
[0003] In related technologies, when conducting vertical flame tests on cables, a core layer is typically first produced according to cable product standards. The outer sheath is then made from the material whose flame retardancy is to be verified. The outer sheath is then wrapped over the core layer to produce the finished cable. A portion of the finished cable is then cut and vertically fixed to a bracket. The finished cable is then burned from the side to verify the flame retardancy of the outer sheath material.
[0004] However, the above method requires the outer sheath and the core layer to be manufactured together, which is time-consuming, labor-intensive, and has high testing costs. Utility Model Content
[0005] The embodiment of the present application provides a simulated cable vertical combustion test device to solve the problems in the prior art of time-consuming and labor-intensive cable product manufacturing process and high testing costs.
[0006] The present invention provides a device for simulating vertical burning of a cable, comprising:
[0007] Mounting rack;
[0008] a core column, the core column being arranged on the mounting frame;
[0009] The outer side of the core cylinder is used to wrap the outer sheath, so that the core cylinder and the outer sheath simulate a finished cable;
[0010] a fire supply component, the fire supply component being used to burn the outer protective layer;
[0011] A detection member is arranged below the outer protective layer to detect the ignition of dripping matter generated by the combustion of the outer protective layer.
[0012] In a possible embodiment, a locking member is further included. The locking member is provided on the core column, and the locking member is used to lock the outer sheath on the core column.
[0013] In a possible embodiment, the locking member includes a locking hoop and a fastener. The locking hoop is an open-loop structure and is sleeved on the outer sheath. The fastener connects two ends of the locking hoop to lock the outer sheath on the core column.
[0014] In a possible implementation manner, the peripheral wall of the core column has an anti-slip portion, and the anti-slip portion is used to fit with the outer protective layer.
[0015] In a possible implementation, the anti-slip portion includes threads, and the threads are distributed along the length direction of the core cylinder.
[0016] In a possible implementation manner, a backing plate is further included, the backing plate is located below the outer protective layer, and the detection element is arranged on the backing plate.
[0017] In a possible implementation, the detection element includes a test paper, and the test paper is spread on the pad.
[0018] In a possible embodiment, the fire supply component includes a flame lamp, and the flame lamp has a fire outlet end, and the fire outlet end is inclined toward the peripheral side of the core column.
[0019] In a possible implementation manner, the flame lamp extends obliquely so that the fire outlet is in an upwardly inclined structure.
[0020] In a possible implementation manner, the mounting frame is provided with a connecting portion, and the core column is detachably connected to the mounting frame via the connecting portion.
[0021] The present invention provides a simulated vertical combustion test apparatus for a cable, comprising: a mounting frame; a core body mounted on the mounting frame; an outer sheath wrapped around the core body so that the core body and the outer sheath simulate a finished cable; a flame supply unit for burning the outer sheath; and a detection unit disposed below the outer sheath to detect the ignition of dripping materials generated by the burning outer sheath. During the test, the outer sheath is first formed from a material whose flame retardancy is to be verified and wrapped around the core body to simulate a finished cable. The core body is then vertically mounted on the mounting frame, and the detection unit is placed below the core body. The simulated finished cable is then burned using the flame supply unit to perform a vertical combustion test on the outer sheath. The ignition of dripping materials generated by the burning outer sheath that fall onto the detection unit is then observed, thereby obtaining the test results. During the test, the finished cable does not need to be manufactured according to cable product standards, making the cable vertical combustion test process simpler, time-saving, labor-saving, and cost-effective, thereby resolving the time-consuming and labor-intensive production process and high testing costs of the existing cable products. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.
[0023] Figure 1A schematic diagram of the structure of a simulated cable vertical combustion test device provided in this application;
[0024] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A.
[0025] Description of reference numerals:
[0026] 100-mounting frame;
[0027] 200-core column; 210-anti-slip portion;
[0028] 300-outer sheath;
[0029] 400-fire supply parts;
[0030] 500-test piece; 510-test paper;
[0031] 600-locking piece; 610-locking hoop; 620-fastener;
[0032] 700-pad.
[0033] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION
[0034] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
[0035] In related technologies, when conducting vertical flame tests on cables, a core layer is typically first produced according to cable product standards. The outer sheath is then made from the material whose flame retardancy is to be verified. The outer sheath is then wrapped over the core layer to produce the finished cable. A portion of the finished cable is then cut and vertically fixed to a bracket. The finished cable is then burned from the side to verify the flame retardancy of the outer sheath material.
[0036] However, the above method requires the outer sheath and the core layer to be manufactured together, and then the finished cable is manufactured, which takes a long time to manufacture. Subsequently, part of the finished cable needs to be cut and fixed on the bracket, so that the whole process is time-consuming and labor-intensive, and the test cost is high.
[0037] Thus, the present invention provides a simulated cable vertical combustion test device, comprising: a mounting frame; a core body mounted on the mounting frame; an outer sheath wrapped around the core body so that the core body and the outer sheath simulate a finished cable; a flame supply member for burning the outer sheath; and a detection member disposed below the outer sheath for detecting the ignition of dripping materials generated by the burning outer sheath. During the test, the outer sheath is first formed from a material whose flame retardancy is to be verified and wrapped around the core body to simulate a finished cable. The core body is then vertically mounted on the mounting frame, and the detection member is placed below the core body. The simulated finished cable is then burned using the flame supply member to perform a vertical combustion test on the outer sheath. The ignition of dripping materials generated by the burning outer sheath that fall onto the detection member is then observed, thereby obtaining the test results. During the test, the finished cable does not need to be processed according to cable product standards, making the cable vertical combustion test process simpler, time-saving, labor-saving, and cost-effective, thereby resolving the time-consuming and labor-intensive production process and high testing costs of the existing cable products.
[0038] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.
[0039] like Figure 1 As shown, an embodiment of the present application provides a simulated cable vertical combustion test device, comprising:
[0040] Mounting frame 100;
[0041] The core column 200 is arranged on the mounting frame 100;
[0042] The outer side of the core body 200 is used to wrap the outer sheath 300, so that the core body 200 and the outer sheath 300 simulate a finished cable;
[0043] A fire supply component 400, which is used to burn the outer protective layer;
[0044] The detection member 500 is disposed below the outer protective layer 300 and is used to detect the ignition of dripping matter generated by the combustion of the outer protective layer 300.
[0045] In this embodiment, the mounting frame 100 can be a frame structure with plate-shaped beams, or block-shaped beams or other structures. When in use, the mounting frame 100 only needs to stand on the ground, a table or a workbench, without any restrictions.
[0046] The core column 200 is a long columnar structure, and the core column 200 is made of a metal material, such as a steel column. The outer sheath 300 is made of a material whose flame retardant properties are to be verified, and the outer sheath 300 is included on the peripheral wall of the core column 200, so that the core column 200 and the outer sheath 300 together simulate a finished cable product, replacing the finished cable product processed according to the cable product standard for vertical combustion test. The detection piece 500 is arranged below the core column 200, and the detection piece 500 is located directly below the outer sheath 300, so that when the outer sheath 300 produces drips due to combustion, the drips can drip onto the detection piece 500. It should be noted that the detection piece 500 is a combustible material.
[0047] In addition, the fire supply component 400 can be an alcohol lamp, a flame lamp, a candle, a lighter, etc., and it only needs to provide a fire source for the combustion of the outer protective layer 300, and there is no limitation on this.
[0048] In this embodiment, the flame supply 400 comprises a flame lamp having a flame outlet facing the periphery of the core column 200. Furthermore, the flame lamp extends at an angle, with the flame outlet facing upward. This allows the flame to burn the outer sheath 300 from the periphery of the core column 200 at an inclined angle when the flame lamp is turned on, ensuring effective combustion of the outer sheath 300. Furthermore, the flame lamp is windproof, ensuring smooth vertical combustion testing.
[0049] During the test, the material whose flame retardancy is to be verified is first made into an outer sheath 300 and wrapped around the core column 200 to simulate a finished cable product. The core column 200 is then vertically mounted on the mounting frame 100, and the test piece 500 is placed under the core column 200. The simulated finished cable product is then burned using the fire supply piece 400 to achieve the purpose of conducting a vertical combustion test on the outer sheath 300. The ignition of the dripping material generated by the combustion of the outer sheath 300 when it drips onto the test piece 500 is then observed to obtain the test results. During the test, there is no need to process the finished cable according to the cable product standards, making the cable vertical combustion test process simpler, saving time, effort, and cost, and solving the problem of time-consuming and labor-intensive cable product production process and high testing costs in the prior art.
[0050] It should also be noted that when the outer sheath 300 is wrapped around the core cylinder 200 to simulate the finished cable, the finished cable is also installed on the mounting bracket 100. In contrast, in the prior art, after the finished cable is made, a portion of the finished cable must be cut and fixed to the bracket, which is a cumbersome step. In contrast, the cable vertical combustion test process in the embodiment of the present application is much simpler.
[0051] In addition, for the actual application of cable manufacturers, it can simplify the test costs and test cycles of cable manufacturers in the process of developing new products of outer sheath 300 raw materials, and facilitate cable manufacturers to control the quality of material combustion performance after purchasing outer sheath 300 raw materials, thereby reducing the cost of cable manufacturers to verify the flame retardant performance of a single cable and speeding up the verification cycle.
[0052] During implementation, a flat plate vulcanizer can be used to make raw sheets of the material whose flame retardancy is to be verified, and then the raw sheets are sliced to obtain the outer sheath 300, which is then wrapped around the core cylinder 200. For example, the granular material is pressed into sheets on a flat plate vulcanizer according to the melting temperature of the material, and then sliced according to the different types and specifications of cables to be simulated.
[0053] In some embodiments, the mounting frame 100 is provided with a connecting portion, and the core column 200 is detachably connected to the mounting frame 100 via the connecting portion.
[0054] For example, a threaded hole can be provided at the bottom of the plate-shaped beam on the mounting frame 100. This threaded hole serves as a connection portion, and an external thread is provided at one end of the core column 200. This allows the core column 200 to be threadedly engaged with the mounting frame 100 to secure the core column 200 to the mounting frame 100. The core column 200 extends vertically, making it easier to replace the core column 200 and ensuring optimal use.
[0055] Of course, in other embodiments, the core column 200 and the mounting frame 100 may also be integrally formed.
[0056] like Figure 1 As shown, further, the peripheral wall of the core column 200 has an anti-slip portion 210 , and the anti-slip portion 210 is used to fit with the outer protective layer 300 .
[0057] Therefore, when the outer sheath 300 is wrapped around the peripheral wall of the core column 200, the anti-slip portion 210 can increase the friction resistance of the outer sheath 300 after being wrapped, thereby reducing the possibility of the outer sheath 300 falling off the core column 200; at the same time, after the outer sheath 300 burns, it is easy to be adsorbed on the anti-slip portion 210, thereby reducing the generation of dripping materials, thereby simulating a finished cable with an armored structure.
[0058] In this embodiment, the anti-slip portion 210 includes threads that extend along the length of the core column 200. The threads are formed on the peripheral wall of the core column 200 and extend helically along the length of the core column 200. Alternatively, a threaded steel column, specifically one with the anti-slip portion 210, can be used directly to further enhance the convenience of the testing process.
[0059] In other embodiments, the anti-slip portion 210 may also be a plurality of annular grooves or patterns of other shapes, which is not limited thereto.
[0060] During implementation, when it is necessary to simulate a cable without an armored structure, the anti-slip portion 210 may not be provided on the peripheral wall of the core column 200 , so that the peripheral wall of the core column 200 is smooth.
[0061] like Figure 1 As shown, in some embodiments, the simulated cable vertical combustion test device further includes a locking member 600 , which is disposed on the core column 200 . The locking member 600 is used to lock the outer sheath 300 on the core column 200 .
[0062] Therefore, after the outer protective layer 300 is wrapped around the peripheral wall of the core column 200, the locking member 600 can be used to tighten the outer protective layer 300 to lock the outer protective layer 300 on the core column 200, thereby improving the stability of the outer protective layer 300 after installation and ensuring the smooth progress of the vertical combustion test.
[0063] like Figure 1 and Figure 2 As shown, specifically, the locking member 600 includes a locking hoop 610 and a fastener 620 . The locking hoop 610 is an open-loop structure and is sleeved on the outer sheath 300 . The fastener 620 connects the two ends of the locking hoop 610 to lock the outer sheath 300 on the core column 200 .
[0064] The locking hoop 610 can be made of metal or other fire-resistant elastic materials, as long as it is not easily flammable and has a certain degree of elastic deformation. The locking hoop 610 has an open-loop structure, so that after the outer sheath 300 is wrapped around the core column 200, the locking hoop 610 can be easily installed on the outer sheath 300. The fastener 620 can be a screw, bolt, or other structure, so that the fastener 620 can connect the two ends of the locking hoop 610 to each other, thereby holding the locking hoop 610 tightly to the outer sheath 300 and ensuring the stability of the outer sheath 300 after installation.
[0065] In other embodiments, the locking member 600 may also be a clamping block or other structures.
[0066] like Figure 1 As shown, in some embodiments, the simulated cable vertical combustion test device further includes a backing plate 700 , which is located below the outer sheath 300 , and the detection element 500 is disposed on the backing plate 700 .
[0067] During the experiment, it is only necessary to place the backing plate 700 under the core column 200, and then place the test piece 500 freely on the backing plate 700 so that the test piece 500 is directly under the outer sheath 300. It should be noted that the backing plate 700 needs to be made of fire-resistant material, such as metal, stone slab, etc.
[0068] Therefore, when the drippings from the burning outer layer 300 drip onto the detection member 500 and ignite, they will burn on the upper surface of the pad 700, effectively protecting the working surface below the detection member 500. For example, when conducting a test on a table, the possibility of burns on the table can be effectively reduced.
[0069] In this embodiment, the detection member 500 includes a test paper 510, which is spread on the backing plate 700. Since the test paper 510 has good flammability, it can more accurately test the ignition performance of the drippings generated by the combustion of the outer protective layer 300, which helps to improve the accuracy of the test results.
[0070] In summary, the simulated cable vertical combustion test device provided by the embodiment of the present application, during the test, first makes the outer sheath 300 of the material whose flame retardant performance is to be verified, and wraps it around the core column 200 to simulate the finished cable. Then, the core column 200 is vertically mounted on the mounting frame 100, and the detection piece 500 is placed under the core column 200. Then, the fire supply piece 400 is used to burn the simulated finished cable to achieve the purpose of conducting a vertical combustion test on the outer sheath 300. Then, the ignition condition of the dripping material generated by the combustion of the outer sheath 300 when dripping onto the detection piece 500 is observed, thereby obtaining the test results. During the test process, there is no need to process the finished cable according to the cable product standard, which makes the cable vertical combustion test process simpler, saves time and effort, and saves costs, and solves the problems of time-consuming and labor-intensive cable vertical combustion test process and high test cost in the prior art.
[0071] Finally, it should be noted that those skilled in the art will readily conceive of other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. It is not limited to the precise structure described above and illustrated in the drawings, and various modifications and variations may be made without departing from the scope of the invention. The scope of the invention is limited solely by the appended claims.
Claims
1. A simulated cable vertical combustion test device, characterized in that: include: Mounting frame (100); A core column (200), the core column (200) being arranged on the mounting frame (100); The outer side of the core column (200) is used to wrap the outer sheath (300), so that the core column (200) and the outer sheath (300) simulate a finished cable product; a fire supply component (400), the fire supply component (400) being used to burn the outer protective layer (300); A detection member (500) is provided below the outer protective layer (300) and is used to detect the ignition of dripping matter generated by combustion of the outer protective layer (300).
2. The simulated cable vertical combustion test device according to claim 1, characterized in that: It also includes a locking piece (600), which is arranged on the core column (200) and is used to lock the outer sheath (300) on the core column (200).
3. The simulated cable vertical combustion test device according to claim 2, characterized in that: The locking member (600) comprises a locking hoop (610) and a fastener (620); the locking hoop (610) is an open-loop structure and is sleeved on the outer sheath (300); the fastener (620) connects the two ends of the locking hoop (610) to lock the outer sheath (300) on the core column (200).
4. The simulated cable vertical combustion test device according to claim 1, characterized in that: The peripheral wall of the core column (200) has an anti-slip portion (210), and the anti-slip portion (210) is used to fit with the outer protective layer (300).
5. The simulated cable vertical combustion test device according to claim 4, characterized in that: The anti-slip portion (210) comprises a thread, and the thread is distributed along the length direction of the core column (200).
6. The simulated cable vertical combustion test device according to any one of claims 1 to 5, characterized in that: It also includes a backing plate (700), the backing plate (700) is located below the outer protective layer (300), and the detection member (500) is arranged on the backing plate (700).
7. The simulated cable vertical combustion test device according to claim 6, characterized in that: The detection element (500) comprises a test paper (510), and the test paper (510) is spread on the backing plate (700).
8. The simulated cable vertical combustion test device according to any one of claims 1 to 5, characterized in that: The fire supply component (400) comprises a flame-spraying lamp, wherein the flame-spraying lamp has a fire-emitting end, and the fire-emitting end faces the peripheral side of the core column (200).
9. The simulated cable vertical combustion test device according to claim 8, characterized in that: The flame-spraying lamp extends obliquely so that the fire outlet is in an oblique upward structure.
10. The simulated cable vertical combustion test device according to any one of claims 1 to 5, characterized in that: The mounting frame (100) is provided with a connecting portion, and the core column (200) is detachably connected to the mounting frame (100) via the connecting portion.