Safety helmet flame retardant property testing device

Abstract

The utility model discloses a safety helmet flame retardant performance testing device, which relates to the safety helmet field, and comprises a box body, the top of the box body is fixedly connected with a water pump, two sides of the water pump are connected with a water inlet pipe in a penetrating manner, one end of the water inlet pipe close to the center of the box body is fixedly connected with the top of the box body, and the top of the box body is provided with a rotating mechanism which comprises a motor. The motor is fixedly connected to the top of the box, and the output end of the motor is fixedly connected with a driving gear. The device has the beneficial effects that the rotating mechanism of the device can rotate the water spraying pipe to cooperate with the water supply of the water pump to the water spraying pipe, and the water spraying pipe can spray water in a surrounding manner to quickly extinguish the safety helmets which do not reach the flame retardant property and are combusted, so that the influence on the testing process caused by too fast fire spreading is avoided, and the safety is enhanced; and the filtering mechanism of the device can prevent harmful gas leakage from harming the health of operators, and meanwhile, smoke is discharged to the outside after being filtered, so that the atmosphere cannot be polluted, and the device is relatively environment-friendly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the safety helmet field, in particular to a safety helmet flame retardant performance testing device. BACKGROUND

[0002] Safety helmet is the protective article of preventing the impact object from injuring the head, which is composed of cap shell, cap lining, lower cheek band and back hoop. When the head of the operator is impacted by the falling object, the impact force is first decomposed to the whole area of the skull by the cap shell and cap lining, and then most of the impact force is absorbed by the buffer structure of each part of the safety helmet, so as to protect the head of the operator. In the process of producing and manufacturing safety helmet, the flame retardant tester is often used to test the flame retardance of the safety helmet.

[0003] For example, the patent document with the announcement number CN217425324U discloses a safety helmet flame retardant performance testing device, which comprises a testing frame, a support frame, a safety helmet body and a high-precision timing unit. The testing frame is provided with a high-precision timing unit. It comprises a fuel tank and a conveying pipeline. The fuel tank is placed in the testing frame. The conveying pipeline is connected and fixed to the fuel tank. The end of the conveying pipeline is connected and fixed to the combustion pipe. Then the sliding block is lifted to make the combustion pipe rise, so that the flame is separated from the safety helmet body. Then the moment when the flame on the safety helmet body is extinguished is observed, the limiting shaft is pressed, the second alignment block is in contact with the timer, and the timing is stopped. Then the time of the timer is subtracted from the time of the timer, and the time of the flame retardant performance is obtained. Thus, the error of the recorded time is reduced, and the measurement accuracy is higher. However, when the flame retardant performance of the safety helmet does not meet the standard and combustion occurs, the safety helmet cannot be quickly extinguished, and a large amount of harmful gas will be generated during the combustion of the safety helmet, which will pose a threat to the personal safety of the operator. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the above-mentioned problems and provides a safety helmet flame retardant performance testing device.

[0005] The utility model realizes the above-mentioned purposes through the following technical solutions:

[0006] The utility model provides a safety helmet flame retardant performance testing device, including the box, the top of box is fixedly connected with water pump, and the both sides of water pump are connected with the water inlet pipe, and the one end of water inlet pipe is fixedly connected with the top of box near the center of box, and the top of box is provided with rotating mechanism, and rotating mechanism includes motor, and motor is fixedly connected at the top of box, and the output of motor is fixedly connected with driving gear, and the bottom of water inlet pipe is rotatably connected with the water jet pipe, and the outer surface of water jet pipe is fixedly connected with driven gear, and the outer surface of driving gear and driven gear is mutually engaged, and the inside bottom of box is provided with clamping mechanism, and the top of box is provided with the purification mechanism, and the both sides of box are fixedly connected with the air pipe, and the air pipe is used for conducting air to the inside of purification mechanism, and the air pipe is communicated with the inside of box, and the side of box is fixedly connected with the ignition device away from water inlet pipe, and the output of ignition device is fixedly connected with the flame spout, and the flame spout is fixedly connected with the inner wall of box, and the side of box is fixedly connected with the water outlet pipe.

[0007] Preferably, the water jet pipe is divided into two water pipes downward, and the water outlet end of the bottom of the water jet pipe is inclined to the center of the box and has a decreasing radius.

[0008] Preferably, the clamping mechanism includes a vertical shaft fixedly connected to the inner wall bottom of the box, a bracket fixedly connected to the top of the vertical shaft, two clamping plates clamped to the inner surface of the bracket, a plurality of clamping blocks fixedly connected to the clamping plates, a plurality of clamping grooves formed in the inner surface of the bracket, and the clamping plates clamped to the bracket through the clamping grooves and the clamping blocks.

[0009] Preferably, the clamping area of the clamping plate is arc-shaped, and the surface thereof is provided with anti-skid lines.

[0010] Preferably, the purification mechanism includes a filter box fixedly connected to the top of the box, a fan fixedly connected to the top of the filter box, the bottom of the fan communicated with the inside of the filter box, two filter plates clamped to the inner surface of the filter box, a partition plate fixedly connected to the inner surface of the filter box, a plurality of through holes formed in the partition plate, an air inlet pipe fixedly connected to the rear side of the filter box, and the bottom of the air inlet pipe communicated with the inside of the air pipe.

[0011] Preferably, a box door is hinged to one side of the box, and an observation window is formed in the outer surface of the box door.

[0012] The rotating mechanism of the device can rotate the water jet pipe, and the water jet pipe can spray water around to quickly extinguish the safety helmet that produces combustion due to substandard flame retardant performance, thereby avoiding the influence of too fast fire spreading on the testing process and enhancing safety. Moreover, the filtering mechanism of the device can prevent harmful gas leakage from harming the health of the operator, and the smoke is filtered and discharged to the outside, thereby not polluting the atmosphere and being more environmentally friendly.

[0013] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a bottom view of the main structure of the safety helmet flame retardant performance testing device described in this utility model;

[0016] Figure 2 This is a top view of the main structure of the safety helmet flame retardant performance testing device described in this utility model;

[0017] Figure 3 This is a rear view of the main body of the safety helmet flame retardant performance testing device described in this utility model;

[0018] Figure 4 This is a front cross-sectional view of the safety helmet flame retardant performance testing device described in this utility model;

[0019] Figure 5 This utility model describes a safety helmet flame retardant performance testing device. Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 6 This utility model describes a safety helmet flame retardant performance testing device. Figure 4 Enlarged structural diagram at point B;

[0021] Figure 7 This utility model describes a safety helmet flame retardant performance testing device. Figure 4 Enlarged structural diagram at point C.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Housing; 2. Water pump; 3. Water inlet pipe; 4. Rotating mechanism; 401. Motor; 402. Driving gear; 403. Driven gear; 404. Water spray pipe; 5. Clamping mechanism; 501. Vertical shaft; 502. Bracket; 503. Clamping plate; 504. Locking block; 505. Locking slot; 6. Purification mechanism; 601. Filter box; 602. Fan; 603. Filter plate; 604. Partition plate; 605. Through hole; 606. Air inlet pipe; 7. Air guide pipe; 8. Ignition device; 9. Flame nozzle; 10. Water outlet pipe; 11. Housing door; 12. Observation window. Detailed Implementation

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] The present application will be further described below in conjunction with the drawings:

[0026] As shown in Figures 1-7 A safety helmet flame-retardant performance testing device, comprising a box body 1, the top of the box body 1 is connected with a water pump 2 through bolts, the two sides of the water pump 2 are penetrated by a water inlet pipe 3, one end of the water inlet pipe 3 close to the center of the box body 1 is fixedly connected with the top of the box body 1, the top of the box body 1 is provided with a rotating mechanism 4, the rotating mechanism 4 comprises a motor 401, the motor 401 is connected on the top of the box body 1 through bolts, the output end of the motor 401 is welded with a driving gear 402, the bottom of the water inlet pipe 3 is rotatably connected with a water spraying pipe 404, the outer surface of the water spraying pipe 404 is welded with a driven gear 403, the outer surface of the driving gear 402 and the outer surface of the driven gear 403 are mutually engaged, the motor 401 drives the driving gear 402 to rotate, the driving gear 402 drives the driven gear 403 to rotate, the driven gear 403 rotates to drive the water spraying pipe 404 to rotate, the rotating water spraying pipe 404 can spray water around, quickly extinguishing the ignited safety helmet, enhancing the safety, the inside bottom end of the box body 1 is provided with a clamping mechanism 5, the top of the box body 1 is provided with a purification mechanism 6, the two sides of the box body 1 are threadedly connected with air guide pipes 7, the air guide pipes 7 are used for conducting air to the inside of the purification mechanism 6, the air guide pipes 7 are communicated with the inside of the box body 1, the side of the box body 1 away from the water inlet pipe 3 is connected with an ignition device 8 through bolts, the output end of the ignition device 8 is fixedly connected with a flame nozzle 9, the flame nozzle 9 is fixedly connected with the inner wall of the box body 1, the ignition device 8 can spray fire from the flame nozzle 9, burn the safety helmet to test its flame-retardant performance, one side of the box body 1 is fixedly connected with a water outlet pipe 10, the water outlet pipe 10 can make the water sprayed by the water spraying pipe 404 flow out of the box body 1.

[0027] The water spraying pipe 404 is divided into two water pipes downward, the water outlet end of the bottom of the water spraying pipe 404 is inclined to the inside center of the box body 1 and the radius is reduced. The inclination can make the water sprayed by the water spraying pipe 404 better sprayed on the surface of the safety helmet, and the reduced radius can make the water column flow faster.

[0028] The clamping mechanism 5 comprises a vertical shaft 501 which is threadedly connected to the bottom of the inner wall of the box body 1, the top of the vertical shaft 501 is fixedly connected with a bracket 502, the inner surface of the bracket 502 is clamped with two clamping plates 503, a plurality of clamping blocks 504 are fixedly connected on the clamping plates 503, a plurality of clamping grooves 505 are arranged on the inner surface of the bracket 502 in linear array, the clamping plates 503 are clamped with the bracket 502 through the clamping grooves 505 and the clamping blocks 504, the safety helmet to be detected is placed on the bracket 502, the distance between the clamping plates 503 and the safety helmet is adjusted, and the clamping blocks 504 are clamped in the clamping grooves 505 when the clamping plates 503 are moved, so that the safety helmet is fixed on the bracket 502.

[0029] The clamping area of the clamping plate 503 is arc-shaped, and an anti-skid line is arranged on the surface of the clamping plate 503, so that the clamping plate 503 can more stably clamp the safety helmet.

[0030] The purification mechanism 6 comprises a filter box 601 which is connected to the top of the box body 1 through bolts, a fan 602 is connected to the top of the filter box 601 through bolts, the bottom of the fan 602 is in communication with the inside of the filter box 601, two filter plates 603 are clamped on the inner surface of the filter box 601, a partition plate 604 is threadedly connected to the inner surface of the filter box 601, a plurality of through holes 605 are arranged on the partition plate 604, an air inlet pipe 606 is welded to the rear side of the filter box 601, the bottom of the air inlet pipe 606 is in communication with the inside of the air guide pipe 7, a large amount of water vapor and smoke will be generated in the box body 1 when the safety helmet is ignited and extinguished, at this time, the fan 602 is started, due to the negative pressure, the water vapor and smoke in the box body 1 will enter into the inside of the filter box 601 through the air guide pipe 7 and the air inlet pipe 606, the through holes 605 on the partition plate 604 will control the amount of smoke entering, the smoke continues to rise and float upwards through the two layers of filter plates 603, and finally is discharged from the air outlet of the fan 602, so as to prevent harmful gas leakage from harming the health of the operator, and at the same time, the smoke is filtered and discharged to the outside, avoiding air pollution.

[0031] One side of the box body 1 is hingedly connected with a box door 11, an observation window 12 is arranged on the outer surface of the box door 11, and an operator can observe the flame-retardant test of the safety helmet through the observation window 12.

[0032] Working principle: when using the device, the operator first connects the water inlet pipe 3 to the external water supply device, then places the safety cap to be detected on the bracket 502, then adjusts the distance between the clamping plate 503 and the safety cap, the clamping block 504 is clamped in the clamping groove 505 when the clamping plate 503 moves, and the safety cap is fixed on the bracket 502, then start the ignition device 8, the flame is sprayed from the flame nozzle 9, and the safety cap is burned to test its flame retardant performance, when the safety cap does not meet the flame retardant performance standard and burns, first close the ignition device 8, then start the water pump 2 and the motor 401, the water pump 2 sprays water from the water spray pipe 404, the motor 401 drives the driving gear 402 to rotate, the driving gear 402 drives the driven gear 403 to rotate, the driven gear 403 rotates to drive the water spray pipe 404 to rotate, the rotating water spray pipe 404 can spray water around, which can quickly extinguish the burning safety cap, which enhances the safety, with the extinguishing of the safety cap, a large amount of water vapor and smoke will be generated in the box 1, at this time, start the fan 602, due to the negative pressure, the water vapor and smoke in the box 1 will enter the filter box 601 through the air guide pipe 7 and the air inlet pipe 606, the through hole 605 on the partition plate 604 will control the amount of smoke entering, the smoke continues to rise and float upward through two layers of filter plates 603, and finally is discharged from the air outlet of the fan 602, preventing harmful gas leakage from harming the health of the operator, at the same time, the smoke is filtered and discharged to the outside, avoiding air pollution.

[0033] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A safety helmet flame retardant performance testing device comprising a box body (1), characterized in that: The top of the box (1) is fixedly connected with a water pump (2), both sides of the water pump (2) are connected with a water inlet pipe (3) penetratingly, one end of the water inlet pipe (3) near the center of the box (1) is fixedly connected with the top of the box (1), the top of the box (1) is provided with a rotating mechanism (4), the rotating mechanism (4) comprises a motor (401), the motor (401) is fixedly connected to the top of the box (1), the output end of the motor (401) is fixedly connected with a driving gear (402), the bottom of the water inlet pipe (3) is rotatably connected with a water spraying pipe (404), the outer surface of the water spraying pipe (404) is fixedly connected with a driven gear (403), the outer surface of the driving gear (402) and the outer surface of the driven gear (403) are mutually engaged, the inside bottom end of the box (1) is provided with a clamping mechanism (5), the top of the box (1) is provided with a purification mechanism (6), both sides of the box (1) are fixedly connected with an air guide pipe (7), the air guide pipe (7) is used for conducting air to the inside of the purification mechanism (6), the air guide pipe (7) communicates with the inside of the box (1), the side of the box (1) away from the water inlet pipe (3) is fixedly connected with an ignition device (8), the output end of the ignition device (8) is fixedly connected with a flame nozzle (9), the flame nozzle (9) is fixedly connected with the inner wall of the box (1), one side of the box (1) is fixedly connected with a water outlet pipe (10).

2. The safety hat flame resistance performance testing device according to claim 1, characterized in that: The water spraying pipe (404) is divided into two water pipes downward, the water outlet end of the bottom of the water spraying pipe (404) is inclined to the inside center of the box (1) and the radius becomes smaller.

3. The safety hat flame resistance performance testing device according to claim 1, wherein: The clamping mechanism (5) comprises a vertical shaft (501), the vertical shaft (501) is fixedly connected to the inner wall bottom of the box (1), the top of the vertical shaft (501) is fixedly connected with a bracket (502), the inner surface of the bracket (502) is clamped with two clamping plates (503), a plurality of clamping blocks (504) are fixedly connected on the clamping plate (503), a plurality of clamping grooves (505) are arranged on the inner surface of the bracket (502), the clamping grooves (505) are linearly arranged, and the clamping plate (503) is clamped with the bracket (502) through the clamping grooves (505) and the clamping blocks (504).

4. The safety hat flame resistance performance testing device according to claim 3, characterized in that: The clamping area of the clamping plate (503) is arc-shaped, and an anti-skid line is arranged on the surface of the clamping area.

5. The safety hat flame resistance performance testing device according to claim 1, wherein: The purification mechanism (6) includes a filter box (601), the filter box (601) is fixedly connected at the top of the box body (1), the top of the filter box (601) is fixedly connected with a fan (602), the bottom of the fan (602) is communicated with the inside of the filter box (601), the inner surface of the filter box (601) is clamped with two filter plates (603), the inner surface of the filter box (601) is fixedly connected with a partition (604), a plurality of through holes (605) are formed in the partition (604), the rear side of the filter box (601) is fixedly connected with an air inlet pipe (606), the bottom of the air inlet pipe (606) is communicated with the inside of the air guide pipe (7).

6. The safety hat flame resistance performance testing device according to claim 1, wherein: A box door (11) is hinged to one side of the box body (1), and an observation window (12) is formed in the outer surface of the box door (11).

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