Flexible sample vertical combustion testing device

Abstract

The utility model provides a vertical combustion testing device for a flexible sample, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The flexible sample vertical combustion testing device comprises a shell with a cavity inside and an opening in the upper end, and further comprises a support, a partition plate, a combustion nozzle and an end cover assembly, the shell is fixedly connected to the upper portion of the support, the end cover assembly is detachably connected to the upper end opening of the shell, and the combustion nozzle is fixedly connected to the support and communicated with the lower portion of the shell. The partition plate is fixedly connected to the lower portion in the shell, a plurality of through holes are formed in the partition plate, and the end cover assembly is further provided with a positioning part used for positioning a flexible sample. The vertical combustion testing device for the flexible sample is high in stability.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a flexible sample vertical combustion test device. Background Technology

[0002] The vertical burning tester is suitable for testing flame-retardant products with flame-retardant requirements. For flame-retardant testing of flexible samples such as clothing fabrics, decorative fabrics, tent fabrics, safety nets, leather, wallpaper, decorative films, door curtains / fabric, and duct fabrics / air duct leather, it is necessary to conduct the test according to relevant standards (e.g., according to GB / T5455-2014).

[0003] Existing vertical combustion testing equipment has fixed internal dimensions and a frame for positioning flexible samples is installed inside the equipment. The placement of the frame directly affects the accuracy of the test. This results in high skill requirements for operators during actual testing, as different operators may affect the accuracy of the vertical combustion test. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a flexible sample vertical combustion testing device that is highly stable and easy to operate.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A flexible sample vertical combustion testing device includes a housing with an internal cavity and an open top. It is characterized by further including a support, a partition, a combustion nozzle, and an end cap assembly. The housing is fixedly connected to the upper part of the support. The end cap assembly is detachably connected to the upper port of the housing. The combustion nozzle is fixedly connected to the support and communicates with the lower part of the housing. The partition is fixedly connected to the lower part of the housing and has several through holes. The end cap assembly also has a positioning part for positioning the flexible sample.

[0007] In the above-mentioned flexible sample vertical combustion test device, the end cap assembly includes a disc-shaped body with several through holes. The positioning part includes two adjacent clips at the lower part of the body: clip one and clip two. Clip one has a recessed positioning hole one on its inner side, and clip two has a through positioning hole two that is directly opposite to positioning hole one. It also includes a pin that can be simultaneously inserted and connected to positioning hole one and positioning hole two.

[0008] In the aforementioned flexible sample vertical combustion test device, the pin is threadedly connected to the positioning hole.

[0009] In the above-mentioned flexible sample vertical combustion test device, the positioning hole one, positioning hole two and the pin form a positioning unit, and the positioning unit is evenly distributed between clamping plate one and clamping plate two in the lateral direction.

[0010] In the above-mentioned flexible sample vertical combustion test device, the housing includes housing one, housing two and housing three that are connected in an overlapping manner from top to bottom. The upper port of housing one has a recessed step seat, the outer edge of the main body is embedded in the step seat, the lower part of housing three has a connecting hole, the upper end of the combustion nozzle is connected to the connecting hole, the middle part of the combustion nozzle is fixed to the bracket, and the partition is fixed inside housing two.

[0011] The aforementioned flexible sample vertical combustion test device also includes a locking mechanism, which is located between the housing and the support. Under the action of the locking mechanism, the housing, housing, and housing are positioned and connected to the support.

[0012] In the above-mentioned flexible sample vertical combustion test device, the locking mechanism includes a pressure ring and a connecting rod. The outer side of the housing has an annular recessed connecting edge. The pressure ring is sleeved on the housing and the lower part of the pressure ring contacts the connecting edge surface. The two ends of the connecting rod are respectively connected to the pressure ring and the bracket.

[0013] In the above-mentioned flexible sample vertical combustion test device, there are several connecting rods, which are evenly distributed circumferentially on the outside of the shell.

[0014] In the aforementioned flexible sample vertical combustion test device, a handle is fixedly connected to the pressure ring.

[0015] In the above-mentioned flexible sample vertical combustion test device, there are two handles, which are symmetrically located on both sides of the pressure ring.

[0016] Compared with existing technologies, in this flexible sample vertical combustion test device, the sample is connected at the end cap assembly. Therefore, there is no need to place a support for positioning the sample inside the housing. Its structure is simple and compact, and it is relatively convenient to use in actual test operations.

[0017] Meanwhile, the end cap assembly is fixed in position within the entire device. Therefore, the accurate position of the sample within the housing can be guaranteed without cumbersome operations. This ensures the accuracy of the test while simplifying the operation, making it highly practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the flexible sample vertical combustion test device.

[0019] Figure 2 This is a cross-sectional structural diagram of the flexible sample vertical combustion test device.

[0020] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at part A in the middle.

[0021] In the diagram, 1. Bracket; 2. Partition; 3. Combustion nozzle; 4. Clip 1; 4a. Positioning hole 1; 5. Clip 2; 5a. Positioning hole 2; 6. Pin; 7. Housing 1; 7a. Stepped seat; 7b. Connecting edge; 8. Housing 2; 9. Housing 3; 10. Pressure ring; 11. Connecting rod; 12. Handle; 13. Body. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figure 1 and Figure 2 and Figure 3 As shown, this flexible sample vertical combustion testing device includes a housing with an internal cavity and an open top, and also includes a support 1, a partition 2, a combustion nozzle 3, and an end cap assembly. The housing is fixed to the upper part of the support 1, the end cap assembly is detachably connected to the upper port of the housing, the combustion nozzle 3 is fixed to the support and is connected to the lower part of the housing, the partition 2 is fixed to the lower part of the housing and has several through holes, and the end cap assembly also has a positioning part for positioning the flexible sample.

[0026] The end cap assembly includes a disc-shaped body 13 with several through holes. The positioning part includes two adjacent clips at the lower part of the body 13: clip 4 and clip 5. Clip 4 has a recessed positioning hole 4a on its inner side. Clip 5 has a through hole 5a that is directly opposite to the positioning hole 4a. The assembly also includes a pin 6 that can be simultaneously inserted and connected to the positioning hole 4a and the positioning hole 5a.

[0027] The flexible sample that needs to be tested is connected to the positioning part.

[0028] For example, the sample being tested is a flame-retardant fabric. After the upper end of the flame-retardant fabric is embedded between clip 4 and clip 5, the pin 6 is inserted into positioning hole 4a and positioning hole 5aa, and the upper end of the flame-retardant fabric is pressed tightly by the pin 6, thus positioning the flame-retardant fabric.

[0029] The flame-retardant fabric hangs naturally inside the shell at the bottom.

[0030] The flame ejected from the combustion nozzle 3 does not act directly on the sample; the flame passes through the baffle 2 first before burning the sample.

[0031] Partition 2 has two functions:

[0032] Firstly, to prevent the sample from falling onto the combustion nozzle 3 and affecting its normal operation;

[0033] Secondly, since the partition 2 has multiple through holes, the flame is dispersed through the partition 2, ensuring that the sample is stably subjected to the flame and avoiding only localized burning of the sample.

[0034] The pin 6 is threadedly connected to the positioning hole 5a.

[0035] This structure allows the pin 6 to be stably connected to the clip 4 and clip 5, ultimately positioning the upper end of the sample stably at the lower part of the body 13.

[0036] The aforementioned positioning hole 4a, positioning hole 5a, and pin 6 form a positioning unit, which is evenly distributed between clamping piece 4 and clamping piece 5 in the transverse direction.

[0037] The setup of multiple positioning units enables the testing of samples with relatively large width dimensions.

[0038] The housing includes a first housing 7, a second housing 8, and a third housing 9 that are connected in an overlapping manner from top to bottom. The first housing 7 has a recessed stepped seat 7a at its upper port. The outer edge of the main body 13 is embedded in the stepped seat 7a. The third housing 9 has a connecting hole at its lower part. The upper end of the combustion nozzle 3 is connected to the connecting hole. The middle part of the combustion nozzle 3 is fixed to the bracket 1. The partition 2 is fixed inside the second housing 8.

[0039] Because the length of the samples being tested can be quite long or short, the number of housings can be increased or decreased depending on the specific circumstances, thereby improving the overall applicability of the device.

[0040] It also includes a locking mechanism, which is located between housing 7 and bracket 1. Under the action of the locking mechanism, housing 7, housing 8 and housing 9 can be positioned and connected to bracket 1.

[0041] Since there are several housings that are overlapped and connected, the locking mechanism can stably position and connect several housings to the bracket 1.

[0042] The locking mechanism includes a pressure ring 10 and a connecting rod 11. The outer side of the housing 7 has an annular recessed connecting edge 7b. The pressure ring 10 is sleeved on the housing 7 and the lower part of the pressure ring 10 contacts the surface of the connecting edge 7b. The two ends of the connecting rod 11 are respectively connected to the pressure ring 10 and the bracket 1.

[0043] The two ends of the connecting rod 11 are threaded to the pressure ring 10 and the bracket 1, respectively. Since the pressure ring 10 is stably connected to the housing 7, all the housings can be stably connected to the bracket.

[0044] The number of connecting rods 11 is several, and the several connecting rods 11 are evenly distributed around the outer side of the housing.

[0045] Multiple connecting rods 11 can stably position and connect all the housings to the bracket 1.

[0046] A handle 12 is fixedly connected to the pressure ring 10.

[0047] There are two handles 12, which are symmetrically located on both sides of the pressure ring 10.

[0048] The housing 7 can be easily moved by the handle 12, making it convenient to load and unload the entire device.

[0049] In this flexible sample vertical combustion test device, the sample is connected to the end cap assembly. Therefore, there is no need to place a support for positioning the sample inside the housing. Its structure is simple and compact, and it is relatively convenient to use in actual test operations.

[0050] Meanwhile, the end cap assembly is fixed in position within the entire device. Therefore, the accurate position of the sample within the housing can be guaranteed without cumbersome operations. This ensures the accuracy of the test while simplifying the operation, making it highly practical.

[0051] The technical features of the above-described embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A flexible sample vertical combustion testing device, comprising a shell with an internal cavity and an open top, characterized in that, It also includes a support, a partition, a combustion nozzle, and an end cap assembly. The housing is fixed to the upper part of the support, the end cap assembly is detachably connected to the upper port of the housing, the combustion nozzle is fixed to the support and communicates with the lower part of the housing, the partition is fixed to the lower part inside the housing and has several through holes, and the end cap assembly also has a positioning part for positioning flexible samples.

2. The flexible sample vertical combustion testing device according to claim 1, characterized in that, The end cap assembly includes a disc-shaped body with several through holes. The positioning part includes two adjacent clips at the lower part of the body: clip one and clip two. Clip one has a recessed positioning hole one on its inner side, and clip two has a through positioning hole two that is directly opposite to positioning hole one. It also includes a pin that can be simultaneously inserted and connected to positioning hole one and positioning hole two.

3. The flexible sample vertical combustion testing device according to claim 2, characterized in that, The pin is connected to the positioning hole by two threads.

4. The flexible sample vertical combustion testing device according to claim 3, characterized in that, The aforementioned positioning hole one, positioning hole two, and pin form a positioning unit, which is evenly distributed between clamping piece one and clamping piece two in the transverse direction.

5. The flexible sample vertical combustion testing device according to claim 4, characterized in that, The housing includes housing one, housing two and housing three that are connected in an overlapping manner from top to bottom. Housing one has a recessed stepped seat at its upper port. The outer edge of the housing is embedded in the stepped seat. Housing three has a connecting hole at its lower part. The upper end of the combustion nozzle is connected to the connecting hole. The middle part of the combustion nozzle is fixed to the bracket. The partition is fixed inside housing two.

6. The flexible sample vertical combustion testing device according to claim 5, characterized in that, It also includes a locking mechanism, which is located between housing one and the bracket. Under the action of the locking mechanism, housing one, housing two and housing three can be positioned and connected to the bracket.

7. The flexible sample vertical combustion testing device according to claim 6, characterized in that, The locking mechanism includes a pressure ring and a connecting rod. The outer side of the housing has an annular recessed connecting edge. The pressure ring is sleeved on the housing and the lower part of the pressure ring contacts the connecting edge surface. The two ends of the connecting rod are respectively connected to the pressure ring and the bracket.

8. The flexible sample vertical combustion testing device according to claim 7, characterized in that, The number of connecting rods is several, and the connecting rods are evenly distributed circumferentially on the outside of the housing.

9. The flexible sample vertical combustion testing device according to claim 8, characterized in that, A handle is fixedly connected to the pressure ring.

10. The flexible sample vertical combustion testing device according to claim 9, characterized in that, The number of handles is two, and the two handles are symmetrically located on both sides of the pressure ring.

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