Combustion test device for flame-retardant composite fabric

Abstract

The utility model provides a flame-retardant composite fabric combustion test device which comprises a combustion tester body, a cabinet door and an igniter, the igniter is fixedly installed on the inner wall of the combustion tester body, and the cabinet door is movably connected to one side of the combustion tester body through a hinge. The utility model relates to the technical field of flame-retardant composite fabrics. According to the combustion test device for the flame-retardant composite fabric, through the arrangement of the pressing mechanism, the flame-retardant composite fabric can be flatly laid on the two placing plates by opening the cabinet door, and then a twisting block is rotated to be matched with the pressing mechanism, so that a pressing rod moves downwards; when the protective pad at the bottom of the pressing rod is in close contact with the top of the flame-retardant composite fabric, the effect of pressing the flame-retardant composite fabric can be achieved, so that the flame-retardant composite fabric is in a pressed state, the situation that the flame-retardant composite fabric is bent due to combustion deformation and is easily folded together is avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flame-retardant composite fabrics, in particular to a combustion test device for flame-retardant composite fabrics. Background Art

[0002] There are two types of flame-retardant composite fabrics: one is flame-retardant fabrics made by post-processing methods (cotton flame-retardant fabrics, CVC flame-retardant fabrics, etc.), and the other is flame-retardant fabrics woven from flame-retardant raw materials (acrylic cotton flame-retardant fabrics, aramid flame-retardant fabrics). In order to detect the flame-retardant effect of flame-retardant composite fabrics, a combustion test device will be used.

[0003] Publication number "CN207396420U" provides a combustion resistance test device for automobile interior fabrics, which includes a test bench; the test bench includes a test platform and a first guide rail and a second guide rail detachably arranged on the test platform surface; a first bracket assembly is arranged on the first guide rail; a second bracket assembly is arranged on the second guide rail; a nozzle of an ignition device is arranged on the first arm of the first bracket assembly; a rotatable combustion distance measuring device is arranged on the second arm of the second bracket assembly. The combustion resistance test device for automobile interior fabrics can simply and conveniently perform combustion resistance tests on fabrics used in automobile interiors; and because the automobile interior fabrics to be tested are laid flat on the test platform surface for testing, it can simulate the combustion resistance test data of the fabrics in a laid state, and obtain combustion resistance test data close to that of carpets and ceiling fabrics after they are installed in the car;

[0004] However, the above device still has the following problems during implementation:

[0005] In the flame retardant test, we need to place the flame retardant composite fabric in the combustion test device and ignite it with an igniter to detect the flame retardancy of the flame retardant composite fabric. However, in this process, the flame retardant composite fabric will bend due to combustion deformation, and the flame retardant composite fabric is easy to fold together, which affects the accuracy of the flame retardant test. Utility Model Content

[0006] The utility model aims to provide a combustion test device for flame retardant composite fabrics to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A combustion test device for flame-retardant composite fabrics, comprising a combustion test instrument body, a cabinet door and an igniter, wherein the igniter is fixedly mounted on the inner wall of the combustion test instrument body, the cabinet door is movably connected to one side of the combustion test instrument body through a hinge, a guide block is fixedly connected to the inner wall of the combustion test instrument body, a T-shaped groove is provided at the bottom of the guide block, two T-shaped blocks are slidably connected inside the T-shaped groove, a connecting rod is provided at the bottom of the T-shaped block, a placement plate is fixedly connected to the bottom of the connecting rod, and a pressing mechanism is provided on the top of the placement plate to press the flame-retardant composite fabric;

[0009] The adjusting mechanism is fixedly arranged on the clamping mechanism and can adjust the clamping position of the clamping mechanism.

[0010] Preferably, the clamping mechanism includes a clamping plate arranged on the top of the placing plate, a plurality of clamping rods are fixedly connected to the bottom of the clamping plate, a transmission block is fixedly connected to one side of the clamping plate, a threaded hole is opened on the top of the transmission block, a threaded rod is connected to the internal thread of the threaded hole, and a twisting block is fixedly connected to the top of the threaded rod.

[0011] By setting up a clamping mechanism, the cabinet door can be opened and the flame-retardant composite fabric can be spread flat on two placement plates. Then, the tightening block can be rotated to cooperate with the clamping mechanism to move the clamping rod downward. When the protective pad at the bottom of the clamping rod is in close contact with the top of the flame-retardant composite fabric, the flame-retardant composite fabric can be compressed, so that the flame-retardant composite fabric is in a compressed state, which prevents the flame-retardant composite fabric from bending due to combustion deformation. The flame-retardant composite fabric is easily folded together, thereby improving the accuracy of detection.

[0012] Preferably, the adjustment mechanism includes a shell fixedly connected to one side of the connecting rod, a moving block is arranged inside the shell, one side of the moving block is fixedly connected to a traction rod, one end of the traction rod passes through the outside of the shell and is fixedly connected to a linkage block, one side of the linkage block is fixedly connected to a handle, the other side of the linkage block is fixedly connected to a positioning rod, and one side of the guide block is provided with a plurality of positioning holes used in conjunction with the positioning rod.

[0013] By setting up an adjustment mechanism, the pull plate can be pulled to drive the linkage block to move, and the linkage block will drive the positioning rod to leave the inside of the positioning hole and contact the restrictions on structures such as the connecting rod and the placement plate. Then, the positions of structures such as the connecting rod and the placement plate are adjusted along the trajectory of the T-shaped block and the T-shaped groove. After reaching the appropriate position, the pull handle is released, and the elastic force generated by the spring will push the moving block and the traction rod to the side away from the spring, and the traction rod will drive the linkage block to move, and the linkage block drives the positioning rod to enter the inside of the corresponding positioning hole to complete the restrictions on structures such as the connecting rod and the placement plate. The clamping position of the clamping mechanism on the placement plate will also be adjusted, so that it can clamp fabrics of different widths, thereby improving the accuracy of subsequent detection.

[0014] Preferably, a spring is sleeved on the surface of the traction rod, one end of the spring is fixedly connected to one side of the moving block, and the other end of the spring is fixedly connected to the inner wall of the shell.

[0015] By setting a spring, the elastic force generated by the spring can push the moving block and the traction rod to move to the side away from the spring. The traction rod will drive the linkage block and the positioning rod to move, so that the positioning rod enters the corresponding positioning hole, thereby playing a resetting role.

[0016] Preferably, a bearing is provided at the bottom of the threaded rod, and the threaded rod is rotatably connected to the top of the placement plate via the bearing.

[0017] By setting the bearing, the position of the threaded rod can be limited so that it can only rotate around the bearing, while the smoothness of the threaded rod during rotation is improved, making it more stable when transmitting the transmission block.

[0018] Preferably, two sliding rods are fixedly connected to the top of the placement plate, and sliding blocks are slidably connected to the surfaces of the sliding rods, and one side of the sliding block is fixedly connected to one side of the pressing plate.

[0019] By setting the sliding rod and the sliding block, the pressing plate and other structures can be restricted to move only along the tracks of the sliding rod and the sliding block during the process of the threaded rod rotating to transmit the pressing plate, so that it can be accurately pressed on the surface of the flame retardant composite fabric.

[0020] Preferably, a protective pad is fixedly connected to the bottom of the pressing rod, and the material of the protective pad is rubber.

[0021] By providing the protective pad, the pressing rod can be prevented from directly contacting the surface of the flame-retardant composite fabric and causing damage, and the rubber material of the protective pad can improve the stability of the pressing.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The utility model is provided with a clamping mechanism, and the flame-retardant composite fabric can be spread flat on two placement plates by opening the cabinet door, and then the clamping rod is moved downward by rotating the twisting block to cooperate with the clamping mechanism. When the protective pad at the bottom of the clamping rod is in close contact with the top of the flame-retardant composite fabric, the flame-retardant composite fabric can be compressed, so that the flame-retardant composite fabric is in a compressed state, and the flame-retardant composite fabric is prevented from bending due to combustion deformation. The flame-retardant composite fabric is easy to fold together, thereby improving the accuracy of detection.

[0024] 2. The utility model is provided with an adjustment mechanism, which can drive the linkage block to move by pulling the pull plate, and the linkage block will drive the positioning rod to leave the inside of the positioning hole and contact the restrictions on structures such as the connecting rod and the placement plate, and then adjust the positions of structures such as the connecting rod and the placement plate along the trajectory of the T-shaped block and the T-shaped groove. After reaching the appropriate position, the pull handle is released, and the elastic force generated by the spring will push the moving block and the traction rod to move to the side away from the spring, and the traction rod will drive the linkage block to move, and the linkage block drives the positioning rod to enter the inside of the corresponding positioning hole to complete the restrictions on structures such as the connecting rod and the placement plate. The clamping position of the clamping mechanism on the placement plate will also be adjusted, so that it can clamp fabrics of different widths, thereby improving the accuracy of subsequent detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0026] Figure 2 It is a three-dimensional diagram of the main body of the utility model in section;

[0027] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0028] Figure 4 It is a three-dimensional diagram of a cutaway view of the housing of the utility model;

[0029] Figure 5 A three-dimensional diagram of a cutaway guide block of the utility model;

[0030] Figure 6 It is a three-dimensional diagram of the clamping mechanism of the utility model.

[0031] In the figure: 1. Combustion tester body; 2. Cabinet door; 3. Guide block; 4. T-slot; 5. T-block; 6. Connecting rod; 7. Placement plate; 8. Clamping plate; 9. Clamping rod; 10. Transmission block; 11. Threaded hole; 12. Threaded rod; 13. Twisting block; 14. Shell; 15. Moving block; 16. Traction rod; 17. Linkage block; 18. Handle; 19. Positioning rod; 20. Positioning hole; 21. Spring; 22. Bearing; 23. Sliding rod; 24. Sliding block; 25. Protective pad; 26. Ignitor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0034] Embodiment 1:

[0035] A combustion test device for flame-retardant composite fabrics, comprising a combustion test instrument body 1, a cabinet door 2 and an igniter 26, wherein the igniter 26 is fixedly mounted on the inner wall of the combustion test instrument body 1, the cabinet door 2 is movably connected to one side of the combustion test instrument body 1 through a hinge, a guide block 3 is fixedly connected to the inner wall of the combustion test instrument body 1, a T-shaped slot 4 is provided at the bottom of the guide block 3, two T-shaped blocks 5 are slidably connected inside the T-shaped slot 4, a connecting rod 6 is provided at the bottom of the T-shaped block 5, a placement plate 7 is fixedly connected to the bottom of the connecting rod 6, and a pressing mechanism is provided on the top of the placement plate 7 to press the flame-retardant composite fabric;

[0036] An adjusting mechanism, the adjusting mechanism is fixedly arranged on the clamping mechanism and can adjust the clamping position of the clamping mechanism;

[0037] One implementation of the present embodiment 1 is as follows: the clamping mechanism includes a clamping plate 8 arranged on the top of the placing plate 7, a plurality of clamping rods 9 are fixedly connected to the bottom of the clamping plate 8, a transmission block 10 is fixedly connected to one side of the clamping plate 8, a threaded hole 11 is opened on the top of the transmission block 10, a threaded rod 12 is connected to the internal thread of the threaded hole 11, and a twisting block 13 is fixedly connected to the top of the threaded rod 12.

[0038] In this embodiment, it is taken into consideration that the flame-retardant composite fabric may bend due to combustion deformation, and the flame-retardant composite fabric is easy to fold together, thereby affecting the accuracy of flame-retardant detection. Therefore, by setting a clamping mechanism, the cabinet door 2 can be opened to lay the flame-retardant composite fabric flat on the two placement plates 7, and then the twisting block 13 is rotated to drive the threaded rod 12 to rotate around the bearing 22. When the threaded rod 12 rotates, the external thread on its surface will squeeze the internal thread of the threaded hole 11, so that the transmission block 10 and the clamping plate 8 move downward along the trajectory of the sliding rod 23 and the sliding block 24, and the clamping plate 8 will drive the clamping rod 9 to move downward. When the protective pad 25 at the bottom of the clamping rod 9 is in close contact with the top of the flame-retardant composite fabric, the flame-retardant composite fabric can be clamped, so that the flame-retardant composite fabric is in a clamped state, and the flame-retardant composite fabric is prevented from bending due to combustion deformation and the flame-retardant composite fabric is easy to fold together, thereby improving the accuracy of detection.

[0039] Preferably, a bearing 22 is provided at the bottom of the threaded rod 12 , and the threaded rod 12 is rotatably connected to the top of the placement plate 7 via the bearing 22 .

[0040] In this embodiment, by providing the bearing 22 , the position of the threaded rod 12 can be limited so that it can only rotate around the bearing 22 , while improving the smoothness of the threaded rod 12 during rotation, making it more stable when transmitting the transmission block 10 .

[0041] Preferably, two sliding rods 23 are fixedly connected to the top of the placement plate 7 , and sliding blocks 24 are slidably connected to the surfaces of the sliding rods 23 , and one side of the sliding block 24 is fixedly connected to one side of the pressing plate 8 .

[0042] In this embodiment, by setting the sliding rod 23 and the sliding block 24, during the process of the threaded rod 12 rotating to transmit the pressing plate 8, the pressing plate 8 and other structures can be restricted to move only along the trajectory of the sliding rod 23 and the sliding block 24, so that they can be accurately pressed on the surface of the flame retardant composite fabric.

[0043] Preferably, a protective pad 25 is fixedly connected to the bottom of the pressing rod 9, and the material of the protective pad 25 is rubber.

[0044] In this embodiment, the protective pad 25 is provided to prevent the pressing rod 9 from directly contacting the surface of the flame-retardant composite fabric and causing damage. At the same time, the rubber material of the protective pad 25 can improve the stability of the pressing.

[0045] Embodiment 2:

[0046] On the basis of Example 1, the clamping mechanism in this embodiment can compress the flame-retardant composite fabric to prevent the flame-retardant composite fabric from burning, deforming, bending, and stacking together, thereby affecting the accuracy of detection. However, considering that the widths of the flame-retardant composite fabrics are different, if they cannot be clamped in the correct position, the tension of the flame-retardant composite fabric will be affected, thereby affecting the accuracy of detection. The adjustment mechanism in this application includes a shell 14 fixedly connected to one side of the connecting rod 6, a moving block 15 is provided inside the shell 14, one side of the moving block 15 is fixedly connected to a traction rod 16, one end of the traction rod 16 passes through the outside of the shell 14, and is fixedly connected to a linkage block 17, one side of the linkage block 17 is fixedly connected to a pull handle 18, and the other side of the linkage block 17 is fixedly connected to a positioning rod 19, and one side of the guide block 3 is provided with a plurality of positioning holes 20 for use with the positioning rod 19.

[0047] In this embodiment, considering that the widths of the flame-retardant composite fabrics are different, if they cannot be pressed in the correct position, the tension of the flame-retardant composite fabrics will be affected, thereby affecting the accuracy of the detection. Therefore, by setting an adjustment mechanism, the linkage block 17 can be driven to move by pulling the pull plate, and the linkage block 17 will drive the positioning rod 19 to leave the inside of the positioning hole 20, contact the restrictions on the structures such as the connecting rod 6 and the placement plate 7, and then adjust the positions of the structures such as the connecting rod 6 and the placement plate 7 along the trajectory of the T-shaped block 5 and the T-shaped groove 4. After reaching the appropriate position, release the pull handle 18, and the elastic force generated by the spring 21 will push the moving block 15 and the traction rod 16 to move to the side away from the spring 21, and the traction rod 16 will drive the linkage block 17 to move, and the linkage block 17 drives the positioning rod 19 to enter the corresponding positioning hole 20 to complete the restrictions on the structures such as the connecting rod 6 and the placement plate 7. The clamping position of the clamping mechanism on the placement plate 7 will also be adjusted, so that it can compress fabrics of different widths, thereby improving the accuracy of subsequent detection.

[0048] Preferably, a spring 21 is sleeved on the surface of the traction rod 16 , one end of the spring 21 is fixedly connected to one side of the moving block 15 , and the other end of the spring 21 is fixedly connected to the inner wall of the housing 14 .

[0049] In this embodiment, by setting the spring 21, the elastic force generated by the spring 21 can push the moving block 15 and the traction rod 16 to move to the side away from the spring 21, and the traction rod 16 will drive the linkage block 17 and the positioning rod 19 to move, so that the positioning rod 19 enters the corresponding positioning hole 20, thereby playing a resetting role.

[0050] Working principle: The user opens the cabinet door 2 and spreads the flame-retardant composite fabric flat on the two placement plates 7. Then, by turning the twisting block 13, the twisting block 13 drives the threaded rod 12 to rotate around the bearing 22. When the threaded rod 12 rotates, the external thread on its surface squeezes the internal thread of the threaded hole 11, so that the transmission block 10 and the clamping plate 8 move downward along the trajectory of the sliding rod 23 and the sliding block 24. The clamping plate 8 drives the clamping rod 9 to move downward. When the protective pad 25 at the bottom of the clamping rod 9 is in close contact with the top of the flame-retardant composite fabric, the flame-retardant composite fabric can be compressed, so that the flame-retardant composite fabric is in a compressed state, and the flame-retardant composite fabric is prevented from being deformed and bent due to combustion. The flame-retardant composite fabric is easy to fold together, which improves the accuracy of detection;

[0051] Taking into account the different widths of flame-retardant composite fabrics, if they cannot be pressed in the correct position, the tension of the flame-retardant composite fabric will be affected, thereby affecting the accuracy of the detection. Therefore, by setting an adjustment mechanism, the pull plate can be pulled to drive the linkage block 17 to move, and the linkage block 17 will drive the positioning rod 19 to leave the inside of the positioning hole 20 and contact the restrictions on the structures such as the connecting rod 6 and the placement plate 7. Then, the positions of the structures such as the connecting rod 6 and the placement plate 7 are adjusted along the trajectory of the T-shaped block 5 and the T-shaped slot 4. After reaching the appropriate position, the pull handle 18 is released, and the elastic force generated by the spring 21 will push the moving block 15 and the traction rod 16 to move to the side away from the spring 21, and the traction rod 16 will drive the linkage block 17 to move, and the linkage block 17 drives the positioning rod 19 to enter the corresponding positioning hole 20 to complete the restrictions on the structures such as the connecting rod 6 and the placement plate 7. The clamping position of the clamping mechanism on the placement plate 7 will also be adjusted, so that it can compress fabrics of different widths, thereby improving the accuracy of subsequent detection.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combustion test device for flame-retardant composite fabrics, comprising a combustion test instrument body (1), a cabinet door (2) and an igniter (26), wherein the igniter (26) is fixedly mounted on the inner wall of the combustion test instrument body (1), and the cabinet door (2) is movably connected to one side of the combustion test instrument body (1) through a hinge, characterized in that: The inner wall of the combustion tester body (1) is fixedly connected with a guide block (3), the bottom of the guide block (3) is provided with a T-shaped groove (4), the inside of the T-shaped groove (4) is slidably connected with two T-shaped blocks (5), the bottom of the T-shaped block (5) is provided with a connecting rod (6), the bottom of the connecting rod (6) is fixedly connected with a placement plate (7), and the top of the placement plate (7) is provided with a clamping mechanism capable of clamping the flame-retardant composite fabric; The adjusting mechanism is fixedly arranged on the clamping mechanism and can adjust the clamping position of the clamping mechanism.

2. The combustion test device for flame retardant composite fabric according to claim 1 is characterized in that: The clamping mechanism comprises a clamping plate (8) arranged on the top of the placement plate (7), a plurality of clamping rods (9) are fixedly connected to the bottom of the clamping plate (8), a transmission block (10) is fixedly connected to one side of the clamping plate (8), a threaded hole (11) is provided on the top of the transmission block (10), a threaded rod (12) is threadedly connected to the inside of the threaded hole (11), and a twisting block (13) is fixedly connected to the top of the threaded rod (12).

3. The combustion test device for flame retardant composite fabric according to claim 2 is characterized in that: The adjustment mechanism comprises a shell (14) fixedly connected to one side of the connecting rod (6); a moving block (15) is arranged inside the shell (14); a traction rod (16) is fixedly connected to one side of the moving block (15); one end of the traction rod (16) passes through the outside of the shell (14) and is fixedly connected to a linkage block (17); a pull handle (18) is fixedly connected to one side of the linkage block (17); a positioning rod (19) is fixedly connected to the other side of the linkage block (17); and a plurality of positioning holes (20) used in conjunction with the positioning rod (19) are provided on one side of the guide block (3).

4. The combustion test device for flame retardant composite fabric according to claim 3 is characterized in that: A spring (21) is sleeved on the surface of the traction rod (16), one end of the spring (21) is fixedly connected to one side of the moving block (15), and the other end of the spring (21) is fixedly connected to the inner wall of the housing (14).

5. The combustion test device for flame retardant composite fabric according to claim 2, characterized in that: A bearing (22) is provided at the bottom of the threaded rod (12), and the threaded rod (12) is rotatably connected to the top of the placement plate (7) via the bearing (22).

6. The combustion test device for flame retardant composite fabric according to claim 2, characterized in that: Two sliding rods (23) are fixedly connected to the top of the placement plate (7), and a sliding block (24) is slidably connected to the surface of the sliding rod (23), and one side of the sliding block (24) is fixedly connected to one side of the pressing plate (8).

7. The combustion test device for flame retardant composite fabric according to claim 2 is characterized in that: A protective pad (25) is fixedly connected to the bottom of the pressing rod (9), and the material of the protective pad (25) is rubber.

Images