阅读说明：本技术 一种消防员防护靴阻燃性能自动试验装置及使用方法 (Automatic testing device for flame retardant property of protective boots for firemen and using method ) 是由 邓小波 魏中欣 刘建志 孙洋 刘保龙 于 2021-09-24 设计创作，主要内容包括：本发明提供一种消防员防护靴阻燃性能自动试验装置及使用方法,包括悬臂梁,所述悬臂梁下方吊装有脚模型,脚模型外部穿戴有防护靴试样,在防护靴试样的下方设有移动装置,每个移动装置的末端均连接一个燃烧器,五个燃烧器的喷火口分别正对防护靴试样前端上表面、防护靴试样前端与靴底交界处、防护靴试样靴底正下方、防护靴试样靴筒正前方和防护靴试样靴筒正后方。该装置通过机械结构支撑燃烧器,可以防止火焰抖动、确保火焰的内焰尖接触试样并保持距离稳定,满足火焰倾斜90°或45°要求,实现计时、观察、判定自动化,改善检测人员所处环境、提高试验检测质量和效率。(The invention provides an automatic testing device for the flame retardant property of a fireman's protective boot and a using method thereof, wherein the automatic testing device comprises a cantilever beam, a foot model is hung below the cantilever beam, a protective boot sample is worn outside the foot model, a moving device is arranged below the protective boot sample, the tail end of each moving device is connected with a burner, and fire nozzles of the five burners respectively face to the upper surface of the front end of the protective boot sample, the junction of the front end of the protective boot sample and a boot sole, the position right below the boot sole of the protective boot sample, the position right in front of a boot barrel of the protective boot sample and the position right behind the boot barrel of the protective boot sample. The device supports the combustor through mechanical structure, can prevent the flame shake, ensure that the inner flame point contact sample of flame and keep apart from stable, satisfy flame slope 90 or 45 requirements, realize timing, observation, judge automation, improve the environment that testing personnel are located, improve experimental detection quality and efficiency.)

1. The utility model provides a fire fighter's protection boots fire behaviour automatic test device, a serial communication port, including the cantilever beam, cantilever beam below hoist and mount have the foot model, the outside protection boots sample of wearing of foot model, be equipped with three mobile device in the boots end length direction's of protection boots sample below, be equipped with two mobile device in the below of the boots end width direction one side of protection boots sample, five mobile device are independent each other separately, five independent mobile device structures, theory of operation are all the same, a combustor is all connected to every mobile device's end, the bocca of five combustors is just respectively to protection boots sample front end upper surface, protection boots sample front end and boots end juncture, under the protection boots sample boots end, protection boots section of thick bamboo dead ahead and protection boots section of thick bamboo dead behind.

2. The automatic testing device for the flame retardant property of the fireman's protective boots according to claim 1, wherein the burner operation movements of five points are not synchronous and independent.

3. The automatic testing device for the flame retardant property of the fireman's protective boots, according to claim 1, wherein each moving device comprises a vertical axis driving motor, a horizontal electric cylinder, a vertical electric cylinder and a gas delivery pipe which are connected in sequence, and the burner is installed at the tail end of the gas delivery pipe.

4. The automatic testing device for the flame retardant property of the fireman's protective boots as claimed in claim 3, wherein the flame nozzle of the burner is provided with an electrically controlled fire-striking needle.

5. The automatic testing device for the flame retardant property of the fireman's protective boots, according to claim 3, characterized in that a rotatable monitoring camera is installed at one end of the gas delivery pipe close to the burner, an instantaneous dynamic 3D measuring instrument is installed at the top end of the rotatable monitoring camera, and the rotatable monitoring camera and the instantaneous dynamic 3D measuring instrument are used for monitoring and measuring the change situation and the damage length of the flame and the burned point position of the burner.

6. The automatic testing device for the flame retardant property of the fireman's protective boots according to claim 3, wherein each gas delivery pipe is connected with an electrically controlled pressure regulating valve bank.

7. The automatic testing device for the flame retardant property of the fireman's protective boots according to claim 6, wherein each of the electrically controlled pressure regulating valve sets is connected with an electrically controlled pressure regulating valve and an electrically controlled switch valve in series, each of the electrically controlled switch valves is connected with the gas input main pipe in parallel through a pipeline, the gas input main pipe is provided with an electrically controlled pressure regulating main valve, the electrically controlled pressure regulating main valve is connected with the electrically controlled switch main valve in series through a gas pipe, and the input end of the electrically controlled switch main valve is connected with the methane gas storage tank through a gas hose.

8. The automatic testing device for the flame retardant property of the fireman's protective boots according to claim 6, wherein the servo motor, the horizontal electric cylinder, the vertical electric cylinder, the rotatable monitoring camera, the micro instantaneous dynamic 3D measuring instrument and the electrically controlled pressure regulating valve set are all in communication connection with a PLC display controller, and a test control program and image analysis software are input into the PLC display controller.

9. The use method of the automatic testing device for the flame retardant property of the fireman's protective boots according to claim 8 is characterized by comprising the following steps:

putting a protective boot sample on a foot model, opening a switch valve of a methane gas storage tank, pressing a test start button in a PLC display controller, and enabling each electric control component to enter a working state;

the five rotatable monitoring cameras respectively send programmed tracking area point location image data to a PLC display controller in real time, the PLC display controller controls five electric ignition needles to ignite, and each combustor ignites flames sequentially;

when the PLC adjusts the flame height of a burner correspondingly monitored by a certain rotatable monitoring camera to reach a set height and be stable, the PLC controls a moving device connected with the burner to work, so that the burner is moved to a corresponding combustion point position of a fire-fighting boot sample, and an inner flame tip of the flame is contacted with the point position;

the rotatable monitoring camera and the instantaneous dynamic 3D measuring instrument track and monitor the combustion point position change condition and the combustion condition and transmit a real-time image to the PLC display controller;

after the set time of combustion, the PLC display controller controls the mobile device to work so that the combustor can leave quickly;

analyzing and judging according to programming and making a point position flame-retardant test conclusion;

after the test is finished, the PLC closes the related electric control component and sends out a video prompt.

Technical Field

The invention belongs to the technical field of fire-fighting product detection equipment and methods, and particularly relates to an automatic testing device for the flame retardant property of protective boots of firefighters and a using method.

Background

The existing fire-retardant performance test of the protective boots of firemen is carried out by manually holding a Bunsen burner, the protective boot sample is placed on a rack, the burner is ignited to adjust the height of flame to 75mm, the flame is separated after contacting and burning 12s at five burning points specified by 90 degrees or 45 degrees, the self-extinguishing time of each burning position after leaving the fire does not exceed 2s, the damage length of each test position does not exceed 100mm, and the phenomena of melting, dripping or peeling and the like cannot be generated. Because the flame is easy to shake by manually holding the bunsen burner, the angle and distance between the flame and the combustion point are difficult to meet the specified requirements, and the combustion temperature of each test combustion point is inconsistent, because the temperature stability and the temperature of the outer flame and the inner flame are not as high as those of the inner flame tip, each combustion point is away from the flame after being combusted for 12s, the self-extinguishing time of the burnt point is not more than 2s, the timing, observation and judgment by naked eyes always have deviation difference, the test detection quality and efficiency are not high, and the environment where inspectors are located is also bad.

Disclosure of Invention

In order to eliminate the defects, the invention provides the automatic testing device for the flame retardant property of the protective boots of the firemen and the using method thereof, the device supports the burner through a mechanical structure, can prevent the flame from shaking, ensure that the inner flame tip of the flame contacts the sample and keep the distance stable, meet the requirement of the flame inclining for 90 degrees or 45 degrees, realize the automation of timing, observation and judgment, improve the environment of detection personnel and improve the test detection quality and efficiency.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

the utility model provides a fireman's protection boots fire behaviour automatic test device, includes the cantilever beam, cantilever beam below hoist and mount has the foot model, the outside protection boots sample of wearing of foot model, be equipped with three mobile device in the bottom of the boots length direction's of protection boots sample below, be equipped with two mobile device in the below of the bottom of the boots width direction one side of protection boots sample, five mobile device are independent each other separately, five independent mobile device structures, theory of operation is the same, a combustor is all connected to every mobile device's end, the bocca of five combustors is just respectively to protection boots sample front end upper surface, protection boots sample front end and boot bottom juncture, under the protection boots sample boot bottom, under the protection boots sample boot section of thick bamboo and under the protection boots section of thick bamboo.

Preferably, each moving device comprises a vertical shaft driving motor, a horizontal electric cylinder, a vertical electric cylinder and a gas conveying pipe which are connected in sequence, and the burner is installed at the tail end of the gas conveying pipe.

Preferably, the flame nozzle of the burner is provided with an electrically controlled fire striking needle.

Preferably, a rotatable monitoring camera is installed at one end, close to the combustor, of the gas conveying pipe, an instantaneous dynamic 3D measuring instrument is installed at the top end of the rotatable monitoring camera, and the rotatable monitoring camera and the instantaneous dynamic 3D measuring instrument are used for monitoring and measuring the change condition and the damage length of flames of the combustor and the burnt point positions.

Preferably, the burner operation movements of the five points are not synchronized and are independent of each other.

Preferably, each fuel gas delivery pipe is connected with an electric control pressure regulating valve group.

Preferably, an electric control pressure regulating valve and an electric control switch valve are connected in series in each electric control pressure regulating valve group, each electric control switch valve is connected with a fuel gas input main pipe in parallel through a pipeline, an electric control pressure regulating main valve is arranged on the fuel gas input main pipeline, the electric control pressure regulating main valve is connected with the electric control switch main valve in series through a fuel gas pipe, and the input end of the electric control switch main valve is connected with a methane fuel gas storage tank through a fuel gas hose.

Preferably, the servo motor, the horizontal electric cylinder, the vertical electric cylinder, the rotatable monitoring camera, the miniature instantaneous dynamic 3D measuring instrument and the electric control pressure regulating valve group are all in communication connection with the PLC control display, and a test control program and image analysis software are input into the PLC control display.

A vertical shaft driving motor in the moving device works to enable the combustor to rotate, a horizontal electric cylinder works to enable the combustor to horizontally move, a vertical electric cylinder enables the combustor to vertically move, each combustor corresponds to a rotatable monitoring camera and a miniature instantaneous dynamic 3D measuring instrument, after flame of the combustor is ignited, the moving device can accurately move the combustor to a burning point and enable an inner flame tip of the burning flame to contact with the burning point, the combustor rapidly leaves after 12s, and the rotatable monitoring camera and the miniature instantaneous dynamic 3D measuring instrument track the point change condition of the burned flame.

The invention also discloses a using method of the experimental device, which comprises the following steps:

1. putting a protective boot sample on a foot model, opening a switch valve of a methane gas storage tank, pressing a test start button in a PLC display controller, and enabling each electric control component to enter a working state;

2. the five rotatable monitoring cameras respectively send programmed tracking area point location image data to a PLC display controller in real time, the PLC display controller controls five electric ignition needles to ignite, and each combustor ignites flames sequentially;

3. when the PLC adjusts the flame height of a burner correspondingly monitored by a certain rotatable monitoring camera to reach a set height and be stable, the PLC controls a moving device connected with the burner to work, so that the burner is moved to a corresponding combustion point position of a fire-fighting boot sample, and an inner flame tip of the flame is contacted with the point position;

4. the rotatable monitoring camera and the instantaneous dynamic 3D measuring instrument track and monitor the combustion point position change condition and the combustion condition and transmit a real-time image to the PLC display controller;

5. after the set time of combustion, the PLC display controller controls the mobile device to work so that the combustor can leave quickly;

6. analyzing and judging according to programming and making a point position flame-retardant test conclusion;

7. after the test is finished, the PLC closes the related electric control component and sends out a video prompt.

The invention has the advantages of

The device and the using method improve the operating environment of detection personnel, solve the problems of unstable and inconsistent distance between the inner flame tip and the combustion part, eliminate the artificial interference factors, realize the automation of timing, observation and judgment, and obviously improve the test quality and the detection efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of I in FIG. 1;

FIG. 3 is an enlarged view of II of FIG. 1;

FIG. 4 is a top view of the present invention;

FIG. 5 is a left side view of the present invention;

FIG. 6 is an electrical control schematic;

in the figure, 1, 2 methane gas storage tanks, 3 gas delivery hoses, 4 electric control pressure regulating valve groups, 5 servo motors B, 6 horizontal electric cylinders A, 7 horizontal fixing clamps A, 8 flange plates A, 9 vertical shafts A, 10 vertical shaft servo motors A, 11 telescopic shafts A, 12 flange plates B, 13 vertical fixing clamps B, 14 vertical electric cylinders B, 15 servo motors C,16 telescopic ends B,17 flange plates C,18 pipe brackets, 19 horizontal metal short pipes, 20 rigid gas delivery pipes, 21 burners B,22 internal flame tips, 23 electric fire needles, 24 burners A,25 hoops, 26 supporting rods, 27 rotatable monitoring cameras, 28 miniature instantaneous dynamic 3D measuring instruments, 29 burners D,30 firemen protective boot flame retardant performance samples, 31-pin models, 32 flange plates D,33 vertical hanging shafts, 34 cantilever beams, 35 burners E,36 burners C,37 shows a PLC controller, 38 a moving device E, 39 a moving device C, 40 a stand column, 41 a moving device D, 42 a moving device B, 43 a triangular reinforcing bar. .

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "inner", "outer", "left" and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The invention discloses an automatic testing device for the flame retardant property of a fireman protective boot, as shown in figures 1-6, the lower end of a stand column 40 of a bracket is fixed on the ground 1 through a ground screw, a cantilever beam 34 of the bracket is welded at the top end of the stand column 40 of the bracket, a triangular reinforcing rib 43 is welded between the cantilever beam 34 of the bracket and the stand column 40 of the bracket, a vertical hanging shaft 33 is welded below the cantilever end of the cantilever beam 34 of the bracket, a flange D32 is arranged at the lower end of the vertical hanging shaft 33, foot models 31 with different specifications and sizes can be installed and fixed on the flange D32 through bolts, and a fire-man protective boot flame retardant property sample 30 with the appropriate specification and size is threaded on the foot model 31. Three moving devices are arranged right below the length direction of the boot sole of a fireman protective boot flame retardant performance test sample 30, two moving devices are arranged below one side of the width direction of the boot sole of the test sample 30, the five independent moving devices have the same structure and working principle, and all the five independent moving devices realize the movement of a combustor connected with each moving device and all components connected to a rigid gas conveying pipe.

The structure of each mobile device is as follows: the vertical axis servo motor A10 is a main representative for supporting and connecting the above components to move, the top end of a vertical axis A9 is provided with a flange A8, the top end of the flange A8 is provided with a horizontal fixing clip A7, a horizontal electric cylinder A6 and a servo motor B5 are clamped in the horizontal fixing clip A7, and the servo motor B5 provides a power source for the horizontal electric cylinder A6. A flange B12 is arranged at the end part of the telescopic end A11, a vertical fixing clip B13 is arranged at the end part of the flange B12, a vertical electric cylinder B14 and a servo motor C15 are clamped in the vertical fixing clip B13, and the servo motor C15 provides a power source for the vertical electric cylinder B14. The top of the telescopic end B16 is provided with a flange C17, the top of the flange C17 is provided with a pipe support 18, and a horizontal metal short pipe 19 is welded on the pipe support 18. The lower part of each rigid gas conveying pipe 20 with different bending shapes is provided with a horizontal section, the horizontal section is inserted into a metal short pipe 19 and fixed through bolts, a burner is welded at the upper end part of each rigid gas conveying pipe, the inner diameter of a burner nozzle is 11mm, an electric control fire needle 23 is arranged at a flame nozzle of each burner, a fixing sleeve 25 is arranged on the rigid gas conveying pipe close to the burner, a support 26 is welded on the fixing sleeve 25, the support 26 is in a right-angle shape and a straight section shape, a rotatable monitoring camera 27 is arranged at the end part of the support 26, a miniature instantaneous dynamic 3D measuring instrument 28 is arranged at the top end of the rotatable monitoring camera 27, and the rotatable monitoring camera 27 and the miniature instantaneous dynamic 3D measuring instrument 28 are used for monitoring and measuring the change condition and the damage length of the flame and the burnt point of the burner. A vertical axis servo motor A10 in the moving device works to enable the burner to rotate, a servo motor B5 works to enable the burner to move horizontally, a servo motor C15 works to enable the burner to move vertically, each burner corresponds to a rotatable monitoring camera 27 and a micro instantaneous dynamic 3D measuring instrument 28, after the flame of the burner is ignited, the moving device can accurately move the burner to the burning point and enable an inner flame tip 22 of the burning flame to contact the burning point for 12s, then the burner is rapidly separated, and the rotatable monitoring camera 27 and the micro instantaneous dynamic 3D measuring instrument 28 track the point change situation of the burnt point.

The burner working movements of the five point positions are not synchronous and are independent respectively. The five points on the fireman boot test specimen 30 that are burned are: the first point of combustion is above the toe of the fireboot test specimen 30, at which point burner a24 is at 90 ° to the horizontal, burner a24 is supported for movement by forward movement means a10 directly below the sole of the test specimen 30. The juncture of the toe and the sole of the boot specimen 30 is a second point of combustion, at which the burner B21 is at 45 degrees to the horizontal, and the burner B21 is supported for movement by a moving device B42 directly below the sole of the boot specimen 30. The rear sole of the boot sample 30 is the third point of combustion, at which the burner C36 is at 90 ° to the horizontal plane, and the burner C36 is supported and moved by the moving device C39 directly below and behind the boot sole of the boot sample 30. The fourth combustion point is located just before the boot entrance of the sample 30, the ignition burner D29 is 90 degrees from the vertical line, and the burner D29 is supported and moved by the sample 30 boot sole width direction side forward movement device D41. The fifth combustion point was located right behind the opening of the boot for the specimen 30, the ignition burner E35 was 90 degrees from the vertical line, and the burner E35 was supported and moved by the specimen 30 shoe sole width direction side rear moving device E38.

The gas inlet of each rigid gas conveying pipe is connected with a gas conveying hose 3, the other end of the gas conveying hose 3 is connected with an electric control pressure regulating valve group 4, each gas conveying hose 3 in the electric control pressure regulating valve group 4 is respectively connected with an electric control pressure regulating valve and an electric control switch valve in series, each electric control switch valve is connected with a gas input main pipe in parallel through a pipeline, an electric control pressure regulating main valve is arranged on a gas input main pipeline, the electric control pressure regulating main valve is connected with the electric control switch main valve in series through a gas pipe, and the input end of the electric control switch main valve is connected with a methane gas storage tank 2 through the gas hose 3.

The servo motor A10, the servo motor B5, the servo motor C15, the five fire needles, the five rotatable monitoring cameras, the miniature instantaneous dynamic 3D measuring instrument, the electric control wires of the electric control pressure regulating valve group 4 and the like in the five mobile devices are all connected with the display PLC 37, and test control programs and image analysis software are input into the PLC 37.

The using method comprises the following steps: the firefighter protective boot flame retardant performance sample 30 is put on the foot model 31, a switch valve arranged on the methane gas storage tank 2 is opened, a test start button in the display PLC 37 is pressed, and each electric control component enters a working state. The five rotatable monitoring cameras 21 respectively send the programmed tracking area point location image data to the PLC 37 in real time, the PLC 37 controls the five electric fire-striking needles 23 to fire, controls the electric control switch main valve in the electric control pressure regulating valve group 4 to be conducted, controls the electric control pressure regulating main valve to work, controls the electric control switch valves on the branch pipelines to be conducted, controls the electric control pressure regulating valves on the branch pipelines to be in the programmed set values, the burners ignite flames in succession, when the PLC 37 finds that the flame height of the burner monitored by a certain rotatable monitoring camera 27 reaches 75mm and is stable, the PLC controller 37 controls the moving device connected to the burner to operate so that the burner moves to the corresponding burning point on the sample 30 and the inner flame tip 22 of the flame contacts the point to burn for 12s, and then the PLC controller 37 controls the moving device to operate so that the burner is rapidly separated. When the inner flame tip 22 of the burner moves to a certain burning point of the sample 30, the rotatable monitoring camera 27 changes from tracking and monitoring the burning condition of the burner flame to tracking and monitoring the burning condition of the point of the sample 30 according to programming, the rotatable monitoring camera 27 and the instantaneous dynamic 3D measuring instrument 28 always track and monitor the changing condition of the burning point in the burning process of the point 12s and the leaving process of the burner, and transmit real-time images to the PLC 37, and the PLC 37 analyzes and judges according to the programming according to the images transmitted by the monitoring camera 27 and the measuring results of the instantaneous dynamic 3D measuring instrument 28 and makes a conclusion of the point flame-retardant test. The control and monitoring conditions of the processes of controlling and moving the inner flame tips 22 of the other four burner flames to the combustion point positions corresponding to the sample 30, leaving after staying for 12s and the like are the same as the principle, and the PLC 37 performs the following steps according to the five point position test combustion conditions on the sample 30: and (5) after the fire source leaves, judging whether the burnt part is self-extinguished within 2s, whether the burnt part has melting and dripping phenomena, and whether the damage length exceeds 100 mm. After the test, the PLC controller 37 closes the relevant electronic control components and sends out a video prompt.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.