Carbon fiber multifilament fire test fixing device with tension

Abstract

The utility model discloses a carbon fiber multifilament fire test fixing device with tension, and solves the technical problems that carbon fiber multifilaments are heated unevenly in a fire test in the prior art, the temperature is easy to change, and an unburned part is easy to be influenced by high temperature of flame. The device comprises an adjusting frame, a fixing table arranged on the adjusting frame and used for loading the carbon fiber multifilament burning sample, a clamping mechanism arranged on the fixing table and used for clamping the carbon fiber multifilament burning sample, and an alcohol blast burner arranged on the adjusting frame and used for burning the carbon fiber multifilament burning sample, the temperature measuring mechanism is arranged on the fixed table and is used for measuring the burning temperature of the carbon fiber multifilament burning sample. The carbon fiber multifilament burning test device is simple in structure, scientific and reasonable in design and convenient to use, can effectively realize the burning test of the carbon fiber multifilament under constant temperature and constant tension, can effectively prevent the unburned part of the carbon fiber multifilament from being influenced by high temperature so as to ensure the accuracy of the burning test, and reduces the contingency and error in the test.

Description

Technical Field

[0001] The utility model belongs to the technical field of fluid pipeline accessories, and in particular relates to a carbon fiber multifilament fire test fixing device with tension. Background Art

[0002] The carbon fiber multifilament fire test is conducted on a fire test fixture. Currently, the carbon fiber multifilament fire test fixture is mainly designed and applied to large cables or small space cables. During the fire test, the fixing table used to fix the carbon fiber multifilament has the problem of uneven heating, which causes the unburned multifilament parts to be affected by high temperature, thereby reducing the accuracy of the test. In addition, the existing carbon fiber multifilament fire test fixture cannot fix the fire-resistant multifilament under constant temperature and constant tension for the fire test.

[0003] Therefore, designing a fixture for a carbon fiber multifilament fire test with tension to at least solve some of the above-mentioned technical problems has become a technical problem that needs to be solved urgently by technicians in the relevant technical field. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a carbon fiber multifilament fire test fixture with tension, so as to at least solve part of the above technical problems.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A fixing device for a carbon fiber multifilament fire test with tension comprises an adjusting frame, a fixing platform arranged on the adjusting frame for loading the carbon fiber multifilament fire test sample, a clamping mechanism arranged on the fixing platform for clamping the carbon fiber multifilament fire test sample, an alcohol blowtorch arranged on the adjusting frame for burning the carbon fiber multifilament fire test sample, and a temperature measuring mechanism arranged on the fixing platform for measuring the burning temperature of the carbon fiber multifilament fire test sample.

[0007] Furthermore, a placement groove for placing the carbon fiber multifilament burning sample is provided on the top surface of the fixing table, and a through hole connected to the placement groove is provided on the fixing table, and the through hole is located directly above the flame of the alcohol burner.

[0008] Furthermore, the fixing platform is in a disc shape, the through hole is located at the center of the placement groove, and the placement groove passes through the center of the fixing platform.

[0009] Furthermore, the outer edges of the fixing platform are chamfered, and the outer edges of the through hole and the placement groove are chamfered.

[0010] Furthermore, the clamping mechanism comprises two digital tensile gauges which are distributed at both ends of the placement slot and are used to clamp the two ends of the carbon fiber multifilament burning sample respectively.

[0011] Furthermore, the digital dynamometer is detachably fixed on the fixing platform by screws.

[0012] Furthermore, the temperature measuring mechanism includes two temperature sensors fixedly mounted on the fixed platform, one temperature sensor temperature measuring end is located at the center of the top surface of the fixed platform, and the other temperature sensor temperature measuring end is located at the center of the bottom surface of the fixed platform. The two temperature sensors measure the temperatures at both ends of the through hole respectively.

[0013] Furthermore, the temperature sensor is connected to a liquid crystal display screen installed on the top surface of the fixing platform.

[0014] Furthermore, the adjustment frame includes a base and an adjustable telescopic rod arranged on the base; the fixed platform is detachably fixed on the adjustable telescopic rod by bolts, and the alcohol burner is placed on the base.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model has a simple structure, a scientific and reasonable design, and is easy to use. It can effectively realize the fire test of carbon fiber multifilaments under constant temperature and constant tension. At the same time, it can also effectively prevent the unburned parts of the carbon fiber multifilaments from being affected by high temperature to ensure the accuracy of the fire test and reduce the contingency and errors in the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 It is a schematic diagram of placing the grooves and through holes on the fixed platform of the utility model.

[0019] Figure 3 It is a top view of the fixing platform of the utility model.

[0020] Figure 4 It is a schematic diagram of the adjusting frame of the utility model.

[0021] Figure 5 It is a schematic diagram of the upper wing plate of the digital display dynamometer of the utility model.

[0022] The names corresponding to the reference numerals are:

[0023] 1-adjusting frame, 2-fixing table, 3-alcohol blowtorch, 4-carbon fiber multifilament burning sample, 5-placing slot, 6-through hole, 7-digital display tensile gauge, 8-temperature sensor, 9-base, 10-adjustable telescopic rod, 11-LCD display, 12-threaded hole, 13-wing plate, 14-pin hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example 1.

[0026] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0027] Place the alcohol burner 3 on the adjustment frame 1, turn on the alcohol burner 3, measure the burning temperature of the carbon fiber multifilament fire sample 4 through the temperature measuring mechanism, adjust the adjustment frame 1 according to the measured temperature, fix the length of the adjustment frame 1 when the temperature is appropriate, and turn off the alcohol burner 3. Load the carbon fiber multifilament fire sample 4 on the fixed table 2, and apply tension to both ends of the carbon fiber multifilament fire sample 4 through the clamping mechanism and clamp it. Turn on the alcohol burner 3 again to carry out the fire test.

[0028] The utility model has a simple structure, a scientific and reasonable design, and is easy to use. It can effectively realize the fire test of carbon fiber multifilaments under constant temperature and constant tension. At the same time, it can also effectively prevent the unburned parts of the carbon fiber multifilaments from being affected by high temperature to ensure the accuracy of the fire test and reduce the contingency and errors in the test.

[0029] Example 2.

[0030] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0031] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0032] Based on Example 1, this Example 2 provides a more preferred structure of the fixing table 2, specifically: a placement groove 5 for placing the carbon fiber multifilament fire sample 4 is provided on the top surface of the fixing table 2, and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2, and the through hole 6 is located directly above the flame of the alcohol burner 3. The placement groove 5 can ensure that the carbon fiber multifilament fire sample 4 is stable during the fire test, and the through hole 6 can ensure that the unburned part of the carbon fiber multifilament is not affected by high temperature, which can effectively ensure the accuracy of the fire test.

[0033] Example 3.

[0034] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0035] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0036] Preferably, the fixing platform 2 is disc-shaped, the through hole 6 is located at the center of the placement groove 5 , and the placement groove 5 passes through the center of the fixing platform 2 .

[0037] Based on Example 2, this Example 3 provides a more preferred structure of the fixing platform 2, specifically: the fixing platform 2 is disc-shaped, the through hole 6 is located at the center of the placement groove 5, and the placement groove 5 passes through the center of the fixing platform 2. The placement groove 5 can ensure that the carbon fiber multifilament fire test sample 4 is stable during the fire test, and the through hole 6 can ensure that the unburned part of the carbon fiber multifilament is not affected by high temperature, which can effectively ensure the accuracy of the fire test.

[0038] Example 4.

[0039] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0040] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0041] Preferably, the fixing platform 2 is disc-shaped, the through hole 6 is located at the center of the placement groove 5 , and the placement groove 5 passes through the center of the fixing platform 2 .

[0042] Preferably, the outer edges of the fixing platform 2 are chamfered, and the outer edges of the through hole 6 and the placement groove 5 are chamfered.

[0043] Based on Example 3, Example 4 provides a more preferred structure of the fixing platform 2, specifically: the outer edges of the fixing platform 2 are chamfered, and the outer edges of the through hole 6 and the placement groove 5 are chamfered, which can effectively prevent the carbon fiber multifilament from being scratched during the fire test.

[0044] Example 5.

[0045] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0046] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0047] Preferably, the clamping mechanism comprises two digital dynamometers 7 distributed at both ends of the placement slot 5 and used for clamping both ends of the carbon fiber multifilament burning sample 4 respectively.

[0048] Based on Example 2, this Example 5 provides a more preferred structure of the clamping mechanism, specifically: the clamping mechanism includes two digital tensile gauges 7 distributed at both ends of the placement slot 5 and respectively used to clamp the two ends of the carbon fiber multifilament burning sample 4.

[0049] Place the alcohol burner 3 on the adjustment frame 1, turn on the alcohol burner 3, measure the burning temperature of the carbon fiber multifilament fire sample 4 through the temperature measuring mechanism, adjust the adjustment frame 1 according to the measured temperature, and when the temperature is appropriate, fix the length of the adjustment frame 1 and turn off the alcohol burner 3. Load the carbon fiber multifilament fire sample 4 on the fixed platform 2, and fix the two ends of the carbon fiber multifilament fire sample 4 by a digital tensile gauge 7, which can give a constant tension to the carbon fiber multifilament fire sample 4. Turn on the alcohol burner 3 again to carry out the fire test. Specifically, the two ends of the carbon fiber multifilament fire sample 4 are clamped with a clip respectively, and the hook of the digital tensile gauge 7 is hooked on the hanging hole on the handle of the clip to clamp and fix the carbon fiber multifilament fire sample 4.

[0050] Example 6.

[0051] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0052] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0053] Preferably, the clamping mechanism comprises two digital dynamometers 7 distributed at both ends of the placement slot 5 and used for clamping both ends of the carbon fiber multifilament burning sample 4 respectively.

[0054] Preferably, the digital dynamometer 7 is detachably fixed on the fixing platform 2 by screws.

[0055] Based on Example 5, this Example 6 provides a more preferred connection structure between the digital tensile gauge 7 and the fixed platform 2, specifically: the digital tensile gauge 7 is detachably fixedly installed on the fixed platform 2 by screws. Wing plates 13 are provided on both sides of the digital tensile gauge 7, and wing plate threaded holes are provided on the wing plates. Two rows of threaded holes 12 are provided on the fixed platform 2, and the two rows of threaded holes are arranged on both sides of the through hole 6. The wing plates are connected to different threaded holes on the fixed platform 2 by screws, so that different tensile forces can be applied to the carbon fiber multifilament burning sample 4.

[0056] Example 7.

[0057] like Figure 1-5As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0058] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0059] Preferably, the temperature measuring mechanism includes two temperature sensors 8 fixedly mounted on the fixed platform 2, one temperature sensor 8 having a temperature measuring end located at the center of the top surface of the fixed platform 2, and the other temperature sensor 8 having a temperature measuring end located at the center of the bottom surface of the fixed platform 2, and the two temperature sensors respectively measure the temperatures at both ends of the through hole 6.

[0060] Based on Example 2, this Example 7 provides a more preferred structure of the temperature measuring mechanism, specifically: the temperature measuring mechanism includes two temperature sensors 8 fixedly installed on the fixed platform 2, one temperature sensor 8 temperature measuring end is located at the center of the top surface of the fixed platform 2, and the other temperature sensor 8 temperature measuring end is located at the center of the bottom surface of the fixed platform 2, and the two temperature sensors respectively measure the temperatures at both ends of the through hole 6.

[0061] Place the alcohol torch 3 on the adjustment frame 1, turn on the alcohol torch 3, measure the temperature at both ends of the through hole 6 through two temperature sensors 8, that is, the burning temperature at the carbon fiber multifilament fire sample 4, adjust the adjustment frame 1 according to the measured temperature, and when the temperature is appropriate, fix the length of the adjustment frame 1 and turn off the alcohol torch 3. Load the carbon fiber multifilament fire sample 4 on the fixed platform 2, and fix the two ends of the carbon fiber multifilament fire sample 4 by a digital tensile gauge 7, which can give a constant tension to the carbon fiber multifilament fire sample 4. Turn on the alcohol torch 3 again to carry out the fire test. Specifically, the two ends of the carbon fiber multifilament fire sample 4 are clamped with a clip respectively, and the hook of the digital tensile gauge 7 is hooked on the hanging hole on the handle of the clip to clamp and fix the carbon fiber multifilament fire sample 4.

[0062] Example 8.

[0063] like Figure 1-5As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0064] Preferably, a placement groove 5 for placing the carbon fiber multifilament burning sample 4 is provided on the top surface of the fixing table 2 , and a through hole 6 connected to the placement groove 5 is provided on the fixing table 2 , and the through hole 6 is located directly above the flame of the alcohol burner 3 .

[0065] Preferably, the temperature measuring mechanism includes two temperature sensors 8 fixedly mounted on the fixed platform 2, one temperature sensor 8 having a temperature measuring end located at the center of the top surface of the fixed platform 2, and the other temperature sensor 8 having a temperature measuring end located at the center of the bottom surface of the fixed platform 2, and the two temperature sensors respectively measure the temperatures at both ends of the through hole 6.

[0066] Preferably, the temperature sensor 8 is connected to a liquid crystal display screen 11 mounted on the top surface of the fixing platform 2 .

[0067] Based on Example 7, this Example 8 provides a more preferred structure of a fixture for the fire test of carbon fiber multifilament with tension, specifically: the temperature sensor 8 is connected to a liquid crystal display screen 11 installed on the top surface of the fixing platform 2. The temperature sensor 8 transmits the detected temperature information to the liquid crystal display screen 11 for display, and the operator can intuitively grasp the temperature of the carbon fiber multifilament fire test sample 4 in real time through the liquid crystal display screen 11. Specifically, the liquid crystal display screen 11 is connected to a single-chip microcomputer, and the temperature sensor 8 is connected to the liquid crystal display screen 11 through the single-chip microcomputer. The temperature sensor 8 transmits the detected temperature information to the single-chip microcomputer, and the single-chip microcomputer transmits the received temperature information to the liquid crystal display screen 11 and displays it on the liquid crystal display screen 11.

[0068] Example 9.

[0069] like Figure 1-5 As shown, the utility model provides a tensile carbon fiber multifilament fire test fixture, comprising an adjusting frame 1, a fixing table 2 arranged on the adjusting frame 1 for loading the carbon fiber multifilament fire sample 4, a clamping mechanism arranged on the fixing table 2 for clamping the carbon fiber multifilament fire sample 4, an alcohol burner 3 arranged on the adjusting frame 1 for burning the carbon fiber multifilament fire sample 4, and a temperature measuring mechanism arranged on the fixing table 2 for measuring the burning temperature of the carbon fiber multifilament fire sample 4.

[0070] Preferably, the adjustment frame 1 includes a base 9 and an adjustable telescopic rod 10 arranged on the base 9; the fixed platform 2 is detachably fixed to the adjustable telescopic rod 10 by bolts, and the alcohol burner 3 is placed on the base 9.

[0071] Based on the embodiment 1, the present embodiment 9 provides a more preferred structure of the adjustment frame 1, specifically: the adjustment frame 1 includes a base 9 and an adjustable telescopic rod 10 arranged on the base 9; the fixed platform 2 is detachably fixedly mounted on the adjustable telescopic rod 10 by bolts, and the alcohol burner 3 is placed on the base 9. The adjustable telescopic rod 10 includes at least one telescopic sleeve and one telescopic rod, the telescopic rod is movably inserted into the telescopic sleeve, and pin holes 14 are provided on the telescopic rod and the telescopic sleeve. When the adjustment frame 1 is adjusted to an appropriate length, the length of the adjustment frame 1 can be fixed by inserting pins into the corresponding pin holes on the telescopic rod and the telescopic sleeve.

[0072] The temperature sensor 8, single-chip microcomputer and liquid crystal display screen 11 used in the present invention are all existing known electrical devices and can be directly purchased and used on the market. Their structures, circuits and control principles are all existing known technologies. Therefore, the structures, circuits and control principles of the temperature sensor 8, single-chip microcomputer and liquid crystal display screen 11 are not described in detail here.

[0073] The utility model discloses a multifilament fixing device for a fire resistance test of a carbon fiber multifilament with tension, comprising a round fixing platform, an adjusting frame, an alcohol burner, a temperature sensor and two tensile gauges with digital displays, wherein the round fixing platform and the adjusting frame are connected by bolts, the distance between the fixing platform and the alcohol burner can be adjusted by an adjustable telescopic rod 10 to control the temperature of the fire test, and the fixing platform is fastened to the adjusting frame by bolts to prevent it from falling.

[0074] Working principle: first put the alcohol burner, fix the digital tensile gauge on the fixed platform by screws, fix two temperature sensors on the positions where the flames are ejected from the upper and lower through holes of the fixed platform, and then adjust the height of the adjustment frame 1 according to the temperature of the flame, and finally fix the fire-resistant multifilament device, put the carbon fiber multifilament to be burned into the placement slot 5 of the fixed platform, then turn on the digital tensile gauge, clamp the cardboard at both ends of the carbon fiber multifilament to adjust the tension, and conduct a fire test; the utility model has a simple structure, is easy to use, has a low production cost, and is easy to maintain.

[0075] The utility model can effectively solve the technical problem that the carbon fiber multifilament is heated unevenly in the fire test, and can also effectively reduce the contingency and error in the test.

[0076] The utility model can effectively realize the testing of carbon fiber multifilament by controlling variables under constant temperature and constant tension.

[0077] The utility model can effectively prevent the unburned parts of the carbon fiber multifilament from being affected by high temperature, thereby ensuring the accuracy of the test.

[0078] The utility model can effectively solve the problems that the carbon fiber multifilament is heated unevenly, the temperature is easily changed, and the unburned part is easily affected by the high temperature of the flame in the fire test.

[0079] Finally, it should be noted that the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, rather than limiting it, and certainly not limiting the patent scope of the present invention; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention; that is to say, any changes or embellishments made to the main design concept and spirit of the present invention that have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention; in addition, the direct or indirect application of the technical solution of the present invention in other related technical fields is also included in the patent protection scope of the present invention.

Claims

1. A fixture for a tensile carbon fiber multifilament fire test, characterized in that: The invention comprises an adjusting frame (1), a fixing platform (2) arranged on the adjusting frame (1) and used for loading a carbon fiber multifilament fire sample (4), a clamping mechanism arranged on the fixing platform (2) and used for clamping the carbon fiber multifilament fire sample (4), an alcohol burner (3) arranged on the adjusting frame (1) and used for burning the carbon fiber multifilament fire sample (4), and a temperature measuring mechanism arranged on the fixing platform (2) and used for measuring the burning temperature of the carbon fiber multifilament fire sample (4).

2. A carbon fiber multifilament fire test fixture with tension according to claim 1, characterized in that: The top surface of the fixing platform (2) is provided with a placement groove (5) for placing a carbon fiber multifilament fire-burned sample (4), and the fixing platform (2) is provided with a through hole (6) connected to the placement groove (5), and the through hole (6) is located directly above the flame of the alcohol burner (3).

3. A fixture for a tensile carbon fiber multifilament fire test according to claim 2, characterized in that: The fixing platform (2) is in the shape of a disk, the through hole (6) is located at the center of the placement groove (5), and the placement groove (5) passes through the center of the fixing platform (2).

4. A carbon fiber multifilament fire test fixture with tension according to claim 3, characterized in that: The outer edges of the fixing platform (2) are all chamfered, and the outer edges of the through hole (6) and the placement groove (5) are all chamfered.

5. The fixture for the fire test of carbon fiber multifilament with tension according to claim 2, characterized in that: The clamping mechanism comprises two digital display tensiometers (7) distributed at two ends of the placement groove (5) and used for clamping two ends of the carbon fiber multifilament burning sample (4) respectively.

6. A carbon fiber multifilament fire test fixture with tension according to claim 5, characterized in that: The digital display tensile gauge (7) is detachably fixedly mounted on the fixing platform (2) by means of screws.

7. A carbon fiber multifilament fire test fixture with tension according to claim 2, characterized in that: The temperature measuring mechanism comprises two temperature sensors (8) fixedly mounted on a fixed platform (2), wherein a temperature measuring end of one temperature sensor (8) is located at the center of a top surface of the fixed platform (2), and a temperature measuring end of the other temperature sensor (8) is located at the center of a bottom surface of the fixed platform (2), and the two temperature sensors respectively measure the temperatures at both ends of the through hole (6).

8. The fixture for the fire test of carbon fiber multifilament with tension according to claim 7, characterized in that: The temperature sensor (8) is connected to a liquid crystal display screen (11) mounted on the top surface of the fixing platform (2).

9. The fixture for the fire test of carbon fiber multifilament with tension according to claim 1, characterized in that: The adjustment frame (1) comprises a base (9) and an adjustable telescopic rod (10) arranged on the base (9); the fixing platform (2) is detachably fixedly mounted on the adjustable telescopic rod (10) by bolts, and the alcohol spray lamp (3) is placed on the base (9).

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