A highly safe non-woven fabric heat resistance testing device

Abstract

The utility model relates to a non-woven fabric heat resistance testing device with high safety, including a protection box, a protection door hinged on the protection box, a plurality of fixings fixedly connected inside the protection box, a heating mechanism arranged between the fixings, a thermal imager fixedly connected to the protection box just above the heating mechanism, a fire sprinkler fixedly connected between the thermal imager and the heating mechanism, an external pipe fixedly connected to one end of the fire sprinkler close to the outer wall of the protection box, a recovery box symmetrically arranged at the lower end of the protection box, and a plurality of air holes opened at the upper end of the protection box. The fire sprinkler in the utility model can extinguish the fire in time after the flame-retardant non-woven fabric catches fire, thereby ensuring the safety of the experiment.

Description

Technical Field

[0001] The utility model relates to a non-woven fabric performance test, in particular to a non-woven fabric heat resistance test device with high safety. Background Art

[0002] The main component of flame retardant non-woven fabric is polyester. Viscose fiber belongs to chemical fiber, which is the polymerization product of terephthalic acid or diethyl terephthalate and ethylene glycol. The characteristics are as follows: high strength, good elasticity, good heat resistance, smooth surface, good wear resistance, good light resistance, and corrosion resistance. Flame retardant non-woven fabric is a widely used fireproof material, mainly used in mattresses, cushions, seats and home textile products to improve the fire safety of the above products.

[0003] In order to control the quality of non-woven fabrics and ensure the fire safety of living environments, flame-retardant non-woven fabrics need to be tested for heat resistance before leaving the factory. A non-woven fabric heat resistance testing device with publication number CN219641616U fixes the non-woven fabric above an alcohol lamp for heating, and then uses a thermal imager above the non-woven fabric to observe the temperature change of the non-woven fabric in real time, thereby accurately measuring the ignition point of the non-woven fabric. However, the non-woven fabric in this patent is in direct contact with the open flame, and since the heating source in this patent is an alcohol lamp, it cannot be directly extinguished with water or other flame retardants. After the non-woven fabric is ignited, it cannot be extinguished immediately, which poses certain safety hazards. Utility Model Content

[0004] The utility model provides a non-woven fabric heat resistance testing device with high safety, which can extinguish fire after measuring the ignition point of the non-woven fabric, ensures the safety of the experiment, and solves the above problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is achieved as follows: a non-woven fabric heat resistance testing device with high safety, comprising a protection box, a protection door hinged on the protection box, a plurality of fixing parts fixedly connected inside the protection box, a heating mechanism cooperatedly arranged between the fixing parts, a thermal imager fixedly connected to the protection box just above the heating mechanism, a fire sprinkler fixedly connected to the protection box between the thermal imager and the heating mechanism, an external pipe fixedly connected to one end of the fire sprinkler close to the outer wall of the protection box, a recovery box symmetrically arranged at the lower end of the protection box, and a plurality of air holes opened at the upper end of the protection box.

[0006] The utility model is further configured as follows: the fixing member includes a lower support plate and an upper fixing plate, a plurality of support rods are fixedly connected in the protective box, the lower support plate is fixedly connected to the support rods, the upper end surface of the lower support plate is fixedly connected to a sliding rod, and the upper fixing plate is slidably connected to the sliding rod.

[0007] The utility model is further configured as follows: a plurality of magnets are fixedly connected to the upper end of the lower supporting plate, a plurality of metal sheets are fixedly connected to the lower end surface of the upper fixing plate, and the upper fixing plate is adsorbed on the magnets through the metal sheets.

[0008] The utility model is further configured as follows: the heating mechanism includes a protection box and a heating wire, the protection box is fixedly connected with a connecting column between the heating elements, the protection box is fixedly connected to the connecting column, and the heating wire is fixedly installed in the protection box.

[0009] The utility model is further configured as follows: the protection box is fixedly connected with a heat insulation pad on one side close to the protection door, the protection door abuts against the heat insulation pad, and high borosilicate glass is fixedly connected to the protection door.

[0010] The utility model is further configured as follows: the protection box is fixedly connected with a shielding plate at the upper end of the recovery box, a liquid flow slope is provided in the recovery box, and a liquid inlet narrow opening is provided on one side of the shielding plate close to the liquid flow slope.

[0011] The utility model is further configured as follows: the recovery box contains absorbent, and the protection box is provided with a plurality of fans at the upper end of the recovery box.

[0012] In summary, the beneficial effects of the utility model are:

[0013] After the tester fixes the flame-retardant non-woven fabric in the protective box and closes the protective door, the heating mechanism heats the flame-retardant non-woven fabric, and the thermal imager observes the temperature changes at the heated point of the non-woven fabric in real time. When the flame-retardant non-woven fabric reaches the ignition point and is ignited, the thermal imager detects the data and uploads it to the central control. The fire sprinkler discharges fire extinguishing substances to extinguish the non-woven fabric in time to ensure the safety of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the isometric cross-section structure of the utility model;

[0017] Figure 3 for Figure 1 Schematic diagram of the structure after removing the protective door and the upper fixing plate;

[0018] Figure 4 This is a schematic diagram of the structure of the upper fixing plate in the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the utility model viewed from above;

[0020] Figure 6 for Figure 5 EE section structure schematic diagram;

[0021] Figure 7 It is a front structural schematic diagram of the utility model;

[0022] Figure 8 for Figure 7 Schematic diagram of the GG-oriented structure;

[0023] Fig. 9 It is a rear view structural schematic diagram of the utility model.

[0024] Numbers in the figure: 1 protective box, 11 air vent, 12 heat insulation pad, 2 protective door, 21 high borosilicate glass, 3 fixing parts, 31 lower support plate, 32 upper fixing plate, 33 support rod, 34 slide bar, 35 magnet, 36 metal sheet, 4 thermal imager, 5 fire sprinkler, 51 external pipe, 6 recovery box, 61 shielding plate, 62 liquid flow slope, 63 liquid inlet narrow mouth, 71 protective box, 72 heating wire, 73 connecting column, 8 fan DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the present utility model Figure 1-9 , 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 them. Based on the embodiments of 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.

[0026] Example:

[0027] like Figures 1 to 6As shown, the utility model discloses a non-woven fabric heat resistance testing device with high safety, including a protective box 1, on which a protective door 2 is hinged. Several fixing parts 3 for fixing flame-retardant non-woven fabrics are fixedly connected in the protective box 1, and a heating mechanism for heating the flame-retardant non-woven fabrics is arranged between the fixing parts 3, and a thermal imager 4 for surveying the temperature of the heated part of the flame-retardant non-woven fabric is fixedly connected to the protective box 1 directly above the heating mechanism. Furthermore, a fire sprinkler 5 is fixedly connected between the thermal imager 4 and the heating mechanism in the protective box 1, and an external pipe 51 is fixedly connected to one end of the fire sprinkler 5 close to the outer wall of the protective box 1, and the external pipe 51 is used for external connection of fire extinguishing materials, and a recovery box 6 for recovering fire extinguishing materials is symmetrically arranged at the lower end of the protective box 1, and a plurality of air holes 11 are opened at the upper end of the protective box 1 (the air holes 11 are used to provide oxygen into the protective box 1).

[0028] Among them, the fixing part 3 includes a lower support plate 31 and an upper fixed plate 32, and the specific structure of the fixing part 3 is: a plurality of support rods 33 are fixedly connected in the protective box 1, the lower support plate 31 is fixedly connected to the support rod 33, the upper end surface of the lower support plate 31 is fixedly connected to a sliding rod 34, and the upper fixed plate 32 is slidably connected to the sliding rod 34; further, a plurality of magnets 35 are fixedly connected to the upper end of the lower support plate 31, and a plurality of metal sheets 36 are fixedly connected to the lower end surface of the upper fixed plate 32, and the upper fixed plate 32 is adsorbed on the magnet 35 through the metal sheet 36.

[0029] Before starting the test, the experimenter pushes the upper fixing plate 32 upward to separate it from the lower support plate 31, places the corners of the flame-retardant non-woven fabric on the lower support plate 31, and then slides the upper fixing plate 32 downward so that the upper fixing plate 32 is adsorbed on the magnet 35 of the lower support plate 31 by the metal sheet 36, thereby fixing the flame-retardant non-woven fabric.

[0030] Furthermore, the heating mechanism includes a protection box 71 and a heating wire 72. The protection box 1 is fixedly connected with a connecting column 73 between the heating elements. The protection box 71 is fixedly connected to the connecting column 73, and the heating wire 72 is fixedly installed in the protection box 71. When the experimenter fixes the flame-retardant non-woven fabric, the lower end of the flame-retardant non-woven fabric abuts against the upper end of the protection box 71. The material of the protection box 71 in the utility model is stainless steel, and the upper end is seamlessly designed, which is not only resistant to high temperature and has good sealing performance, but also has good thermal conductivity. While improving the thermal conductivity efficiency, it can also prevent the leakage of fire extinguishing materials, thereby protecting the heating wire 72 from damage.

[0031] The protective box 1 is fixedly connected with a heat-insulating pad 12 on one side close to the protective door 2, the protective door 2 abuts against the heat-insulating pad 12, and a high borosilicate glass 21 is fixedly connected to the protective door 2. Through the above structure, it is convenient for the experimenter to always observe the condition of the flame-retardant non-woven fabric in the protective box 1 during the heating process, and due to the presence of the heat-insulating pad 12, the temperature of the protective door 2 will not be too high, so it is convenient for the experimenter to open the protective door 2 and take away the test sample after the experiment.

[0032] Furthermore, the protection box 1 is fixedly connected with a shielding plate 61 at the upper end of the recovery box 6 , a liquid flow slope 62 is provided in the recovery box 6 , and a liquid inlet narrow opening 63 is provided on one side of the shielding plate 61 close to the liquid flow slope 62 .

[0033] In this embodiment, the external pipe 51 is connected to the external water source and the solenoid valve (not shown in the figure). When the flame-retardant non-woven fabric is ignited, the solenoid valve opens to allow the water flow to reach the fire sprinkler 5. The fire sprinkler 5 sprays water to the flame-retardant non-woven fabric, thereby extinguishing the ignition point of the flame-retardant non-woven fabric. After the flame-retardant non-woven fabric is extinguished, the water flows into the recovery box 6 through the narrow liquid inlet 63 for recovery. The function of the baffle plate 61 is: since the water in the recovery box 6 in this embodiment will not be discharged frequently, in order to prevent water evaporation from increasing the humidity in the protection box 1 and affecting the accuracy of the heat resistance test results of the flame-retardant non-woven fabric, the baffle plate 61 is required to cover the upper end of the recovery box 6 to prevent water vapor from entering the protection box 1.

[0034] Embodiment 2:

[0035] The structure of embodiment 2 is basically the same as that of embodiment 1. Figures 7 and 8 As shown, the difference is that: in this embodiment, the fire sprinkler 5 is connected to the carbon dioxide gas tank (it can also be other flame-retardant gases, such as nitrogen), the recovery box 6 is filled with an absorbent (sodium hydroxide solution in this embodiment, sodium hydroxide reacts with carbon dioxide to generate non-toxic sodium bicarbonate and water), and the protection box 1 is equipped with a plurality of fans 8 at the upper end of the recovery box 6.

[0036] When the flame-retardant non-woven fabric catches fire, the fire sprinkler 5 sprays carbon dioxide toward the ignition point to reduce the oxygen content at the ignition point, thereby extinguishing the flame-retardant non-woven fabric. Since the density of carbon dioxide is greater than that of air, the carbon dioxide will sink into the recovery box 6 and react with the absorbent, and the fan 8 can accelerate the sinking speed of carbon dioxide to avoid excessive carbon dioxide concentration in the protective box 1. Excessive carbon dioxide concentration will not only cause the flame-retardant non-woven fabric to fail to ignite when it reaches the ignition point in the next experiment, thereby affecting the accuracy of the experimental results, but also the experimenter will face the risk of suffocation and fainting when directly facing the high concentration of carbon dioxide after opening the protective door 2 after the test is completed.

[0037] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-woven fabric heat resistance testing device with high safety, comprising a protective box (1), characterized in that: The protection box (1) is hinged with a protection door (2), a plurality of fixing parts (3) are fixedly connected inside the protection box (1), a heating mechanism is provided between the fixing parts (3), a thermal imager (4) is fixedly connected to the protection box (1) just above the heating mechanism, a fire sprinkler (5) is fixedly connected to the protection box (1) between the thermal imager (4) and the heating mechanism, an external pipe (51) is fixedly connected to one end of the fire sprinkler (5) close to the outer wall of the protection box (1), a recovery box (6) is symmetrically provided at the lower end of the protection box (1), and a plurality of air holes (11) are provided at the upper end of the protection box (1).

2. A non-woven fabric heat resistance testing device with high safety according to claim 1, characterized in that: The fixing member (3) comprises a lower supporting plate (31) and an upper fixing plate (32); a plurality of supporting rods (33) are fixedly connected inside the protection box (1); the lower supporting plate (31) is fixedly connected to the supporting rods (33); a sliding rod (34) is fixedly connected to the upper end surface of the lower supporting plate (31); and the upper fixing plate (32) is slidably connected to the sliding rod (34).

3. A non-woven fabric heat resistance testing device with high safety according to claim 2, characterized in that: A plurality of magnets (35) are fixedly connected to the upper end of the lower supporting plate (31), a plurality of metal sheets (36) are fixedly connected to the lower end surface of the upper fixing plate (32), and the upper fixing plate (32) is adsorbed on the magnets (35) via the metal sheets (36).

4. A non-woven fabric heat resistance testing device with high safety according to claim 2, characterized in that: The heating mechanism comprises a protection box (71) and a heating wire (72); the protection box (1) is fixedly connected with a connecting column (73) between the heating elements; the protection box (71) is fixedly connected to the connecting column (73); and the heating wire (72) is fixedly installed in the protection box (71).

5. A non-woven fabric heat resistance testing device with high safety according to claim 1, characterized in that: The protection box (1) is fixedly connected to a heat insulating pad (12) on a side close to the protection door (2), the protection door (2) abuts against the heat insulating pad (12), and the protection door (2) is fixedly connected to a high borosilicate glass (21).

6. A non-woven fabric heat resistance testing device with high safety according to claim 1, characterized in that: The protection box (1) is fixedly connected to a shielding plate (61) at the upper end of the recovery box (6), a liquid flow inclined surface (62) is provided in the recovery box (6), and a liquid inlet narrow opening (63) is provided on a side of the shielding plate (61) close to the liquid flow inclined surface (62).

7. A non-woven fabric heat resistance testing device with high safety according to claim 1, characterized in that: The recovery box (6) contains absorbent, and the protection box (1) is provided with a plurality of fans (8) at the upper end of the recovery box (6).

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