Flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels

Abstract

The present invention belongs to the field of equipment for testing the performance of asphalt in highway tunnels, and more particularly relates to a device for measuring the flame retardant performance of flame-retardant asphalt pavements in highway tunnels. The device comprises a device body for testing the flame retardant performance of asphalt materials, a control system, and a gas transmission system. The device body comprises a measuring box, a sandwich barrel with a protective gas guide function disposed at the geometric center of the measuring box, an igniter with rotation and lifting functions disposed obliquely in front of the sandwich barrel, a lifting assembly disposed on the inner wall of the measuring box behind the sandwich barrel, a manipulator with a clamping function disposed at the front end of the lifting assembly, a rotating opening and closing door disposed on one side of the measuring box, and a controller for controlling the operation of the lifting assembly disposed obliquely above one side of the opening and closing door. The present invention effectively improves the degree of automation of the measuring equipment, enhances the work process, achieves stability, convenience, and accuracy in the placement of test strips to be tested, reduces losses, saves costs, and meets user requirements.

Description

Technical Field

[0001] The invention belongs to the field of application equipment of highway tunnel asphalt performance detection technology, and in particular relates to a device for measuring the flame retardant performance of flame retardant asphalt pavement in a highway tunnel. Background Art

[0002] With the development of expressways in my country, the number of highway tunnels has continued to increase. Cement concrete, due to its excellent flame retardancy, is still the primary pavement material for most highway tunnels. However, as demand for road quality increases, asphalt pavements, known for their smoothness, wear resistance, and low noise, are gradually replacing cement concrete pavements and becoming the mainstream in tunnel pavement development.

[0003] At present, highway tunnel pavement requires not only good road performance of asphalt materials, but also good flame retardant properties. At the same time, with the rapid development of the national economy, people's requirements for the flame retardancy of asphalt pavement are becoming more and more stringent.

[0004] At present, for the flame retardant performance test of asphalt, the commonly used technical means include limiting oxygen index test and horizontal and vertical combustion test. For the latter test, it is usually carried out indoors. Since some harmful substances will inevitably be produced during the combustion of asphalt, the existing equipment used in the flame retardant performance test cannot meet the use requirements well. The smoke generated not only pollutes the environment, but also causes harm to people. Therefore, it is not very suitable for the flame retardant performance measurement of asphalt materials. As the existing standards and regulations for flame retardant asphalt are becoming more and more perfect, many domestic experts have studied the relevant influencing factors of asphalt oxygen index test, and focused on the analysis and testing of sample temperature, sample volume and total gas flow during combustion. Therefore, people also provide a test method that can measure the influence of air concentration changes on the flame retardant performance of asphalt materials. Certain equipment is needed to be applied to the flame retardant performance measurement of asphalt and asphalt mixtures; however, the existing asphalt flame retardant performance measurement equipment has a low degree of automation and is time-consuming and labor-intensive to a certain extent, especially for the clamping of the asphalt test strips to be measured, which are usually first clamped by humans using a clamp and then placed in a specific position. In this process, on the one hand, it increases people's labor intensity and limits the work progress; on the other hand, it has high requirements for the placement position of the asphalt test strips to be measured, requiring people to make continuous adjustments, which consumes a lot of time and has poor practicality; in addition, when carrying out the measurement of different air concentration changes (or oxygen concentration changes) in the existing test equipment, its consumption cost is too high, which undoubtedly increases the cost of the test process, and the concentration change time is too long, which will affect the measurement of the flame retardant performance of the asphalt material to a certain extent and cannot meet the use requirements. Summary of the Invention

[0005] In response to the technical problems of the low degree of automation of the above-mentioned asphalt flame retardant performance measuring equipment, the inconvenient adjustment process of the placement of the test strips to be measured, which consumes a lot of time, and the limited test process for adjusting to different measuring conditions, the present invention proposes a flame retardant performance measuring device for highway tunnel asphalt pavement that has a reasonable design, simple structure, and convenient processing, and can effectively improve the degree of automation of the measuring equipment to increase its practicality and promote the work progress. At the same time, it achieves the stability, convenience and accuracy of the placement of the test strips to be measured, reduces labor intensity, saves time and cost, and saves the loss of the measuring equipment due to the test of different air concentration changes, relatively reduces the waiting time for the test, ensures the effective progress of the test measurement, and meets the use requirements.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is a flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels, including a measuring device body for testing the flame retardant performance of asphalt materials, a control system and a gas transmission system. The measuring device body includes a measuring box body, a sandwich barrel with a protective gas guide function is provided at the geometric center of the measuring box body, a plurality of air outlet holes are evenly opened on the inner wall of the sandwich barrel, a storage tray is provided under the sandwich barrel, an igniter with a rotation and lifting function is provided obliquely in front of the sandwich barrel, and a measuring box behind the sandwich barrel A lifting assembly is provided on the inner side wall of the body, a manipulator with a clamping function is provided at the front end of the lifting assembly, a rotating opening and closing door is provided on one side of the measuring box, and a controller for controlling the operation of the lifting assembly is provided diagonally above one side of the opening and closing door. The control system includes a support frame provided on one side of the measuring box, a control panel is provided on the upper end of the support frame, and the gas transmission system includes a gas storage tank, a nitrogen source and an oxygen source for supplying the igniter, and the gas outlet ends of the nitrogen source and the oxygen source are connected to a gas mixer, and the output end of the gas mixer is connected to the interlayer barrel.

[0007] Preferably, the opening and closing door includes a placement plate with a T-shaped cross-section, a rotating plate is provided on the outer periphery of the placement plate, a handle is provided at the front end of the rotating plate, a limit strip is obliquely provided on the inner side of the rotating plate, a through hole is provided in the placement plate, six key-shaped sliding grooves are evenly provided on the outer periphery of the through hole, a sealing plate is provided between the limit strip and the placement plate, a sliding rod is provided in the sealing plate and is adapted to the sliding groove, a key-shaped groove adapted to the sliding rod is provided in the limit strip, and an arc-shaped rack is also provided on the outer periphery of the rotating plate opposite to the handle.

[0008] Preferably, the controller includes a rotating shaft, a first gear meshing with an arc-shaped rack is provided on the outer periphery of the rotating shaft, an electromagnetic disk with a magnetic field strength that can rotate with the rotating shaft is provided at the front end of the rotating shaft, the electromagnetic disk includes an insulating disk that generates a magnetic field, and a plurality of magnetized iron columns are provided at the edge of the insulating disk. The controller also includes a carrier with a concave design, and an electromagnetic induction switch is provided at the front end of the carrier, and is located on one side of the electromagnetic disk.

[0009] Preferably, the lifting assembly includes a lifting plate designed in a T shape, two sliders are symmetrically provided at the corners of one end face of the lifting plate, a first rack is provided between the two sliders, and an extension plate is provided at the front end of the other side of the lifting plate, the manipulator includes a first cylinder arranged at the upper end of the short side of the lifting plate, a limiting block is provided at the upper end of the extension plate, a moving rod is provided in the limiting block, one end of the moving rod is connected to the first cylinder, and a lifting plate designed in a triangular shape is provided at the other end of the moving rod, a positioning rotating rod is provided at the corner of the front end above the extension plate, a rotatable clamping jaw designed in an obtuse angle is provided in the positioning rotating rod, and a roller is provided inside the side of the clamping jaw close to the lifting plate, and the roller is in contact with the lifting plate.

[0010] Preferably, the lifting assembly also includes two symmetrically arranged sliding bars, which are adapted to the slider, and a second rack is provided between the two sliding bars. The lifting assembly also includes a second cylinder, and a concave connecting seat is provided at the upper end of the second cylinder. A second gear is provided in the connecting seat, and the second gear is respectively engaged with the first rack and the second rack. Two L-shaped protective plates are symmetrically provided on the outside of the lifting assembly, and the two protective plates constitute a protective area for protecting the lifting assembly. A foldable and telescopic protective cover is also provided between the protective plates on the upper and lower sides of the lifting plate.

[0011] Preferably, the igniter includes a rotating disk arranged at the lower end of the inner side of the measuring box, a telescopic rod is provided at the upper end of the rotating disk, a gas supply pipe is provided at the upper end of the telescopic rod, a flame outlet is provided at the end of the gas supply pipe, and an ignition device is provided on the outer periphery of the gas supply pipe near the flame outlet.

[0012] Preferably, an air suction component is provided at the upper end of the measuring box, and the air suction component includes a smoke output pipe provided through the measuring box, an absorption hood is provided at the lower end of the smoke output pipe, a smoke concentration sensor is provided on the periphery of the upper end of the smoke output pipe, an infrared temperature sensor is provided in front of the air suction component, and a smoke alarm is provided on one side of the air suction component.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. The present invention provides a flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels. By providing a lifting assembly, a manipulator, an igniter, a control panel, and other components, the device improves the degree of automation of the measuring device to a certain extent. Unlike the existing manual work method, this greatly reduces labor intensity, improves work progress, and saves time and costs.

[0015] 2. Furthermore, by setting up the opening and closing door and controller, the indispensable opening and closing action of the door is utilized, combined with the establishment of the electromagnetic disk and electromagnetic induction switch, the discharge action is completed, thereby simply and conveniently realizing the free opening and closing of the lifting component, thereby ensuring the convenient gripping of the test strip to be measured by the manipulator. At the same time, under the effect of the controller, the accuracy of the placement of the test strip to be measured is achieved to a certain extent, and the equipment operates stably, has good effect, and is highly practical.

[0016] 3. Furthermore, the interlayer barrel and gas transmission system are provided. The gas transmission system can simulate different air concentrations to measure the combustion effect of the asphalt test strips to be tested, ensuring the diversity of test data, providing research for people and ensuring the quality of product molding. The interlayer barrel further limits the range of variation of different air concentrations. Compared with the existing technology, the air concentration change is more obvious, which not only reduces the loss of gas source derivation, but also relatively shortens the waiting time under air concentration changes, improving the work process.

[0017] 4. The device has a reasonable design, simple structure, and is easy to process. It can effectively improve the degree of automation of the measuring equipment, thereby increasing its practicality and improving the work process. At the same time, it can achieve stability, convenience, and accuracy in the placement of the test strips to be measured, reduce labor intensity, and save time costs. In addition, it saves the loss of the measuring equipment due to the test of different air concentration changes, relatively reduces the waiting time for the test, ensures the effective progress of the test measurement, and meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of a device for measuring the flame retardant properties of flame retardant asphalt pavement in highway tunnels;

[0020] Figure 2 This is a front view of the internal structure of a device for measuring the flame retardant properties of flame retardant asphalt pavement in highway tunnels;

[0021] Figure 3 This is a side view of the structure of the device for measuring the flame retardant performance of flame retardant asphalt pavement in highway tunnels;

[0022] Figure 4 This is a side view of the internal structure of a device for measuring the flame retardant properties of flame retardant asphalt pavement in highway tunnels;

[0023] Figure 5 It is a structural diagram of an opening and closing door;

[0024] Figure 6 It is a partial structural diagram of the controller;

[0025] Figure 7 It is a structural diagram of the robot;

[0026] Figure 8 This is a structural diagram of the robot from another perspective;

[0027] Figure 9 It is a schematic diagram of a partial structural cross section of a sandwich barrel;

[0028] Figure 10 It is a side view of the internal structure of the sandwich barrel;

[0029] In the above figures, 1. measuring box; 2. interlayer barrel; 21. air outlet; 3. storage tray; 4. igniter; 41. rotating disk; 42. telescopic rod; 43. gas transmission pipe; 431. flame nozzle; 44. ignition device; 5. lifting assembly; 51. lifting plate; 52. slider; 53. first rack; 54. extension plate; 55. slide; 56. second rack; 57. second cylinder; 571. connecting seat; 58. second gear; 6. manipulator; 61. first cylinder; 62. limit block; 63. moving rod; 64. lifting plate; 65. positioning rotating rod; 66. clamping claw; 67. roller; 7. opening and closing door; 71. placement plate; 711. through hole; 712. Slide groove; 72. Rotating plate; 73. Turning handle; 74. Limiting strip; 741. Key groove; 75. Sealing plate; 76. Sliding rod; 77. Arc rack; 8. Controller; 81. Rotating shaft; 82. First gear; 83. Electromagnetic disk; 831. Insulating disk; 832. Iron column; 84. Carrier; 85. Electromagnetic induction switch; 9. Support frame; 91. Control panel; 10. Gas storage tank; 11. Nitrogen source; 12. Oxygen source; 13. Gas mixer; 14. Protective plate; 15. Protective cover; 16. Suction assembly; 161. Smoke output pipe; 162. Suction cover; 163. Smoke concentration sensor; 17. Infrared temperature sensor; 18. Smoke alarm. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Examples, such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9As shown, a flame retardant performance measuring device for flame retardant asphalt pavement in a highway tunnel includes a measuring device body for testing the flame retardant performance of asphalt materials, a control system and a gas transmission system. The measuring device body carries various device and equipment components for testing the flame retardant performance of asphalt materials to ensure the effective implementation of the measurement work. The control system is used to complete convenient operations during the measurement process, so that various equipment components can be freely controlled and operated to improve the degree of automation. The gas transmission system provides a prerequisite for the smooth implementation of changes in air concentration conditions during the measurement test, thereby improving the practicality of the device. Further, the measuring device body includes a measuring box 1, wherein the front end and side of the measuring box 1 are The edges are sealed with observation windows, which provide convenience for people to observe the combustion process of the asphalt test strip to be measured in real time. In addition, people can also set an infrared thermal imager in front of the observation window at the front end of the measuring box 1. On the one hand, it can be used to replace manual observation of the combustion process of the asphalt material at different stages at any time. On the other hand, it can also collect the temperature during combustion to improve the detection accuracy. Furthermore, in order to conveniently create a measurement environment and atmosphere under different air concentration changes, a sandwich barrel 2 with a protective air-guiding function is provided at the geometric center of the measuring box 1, wherein a plurality of air outlet holes 21 are evenly opened on the inner wall of the sandwich barrel 2. In this way, the sandwich barrel 2 is designed as a cavity and is connected with the inner wall of the sandwich barrel 2. The air outlet 21 is connected, and the other end is connected to the gas supply system. When people operate the gas supply system to achieve changes in air concentration, the interlayer barrel 2 limits the air delivered to a certain extent and creates a good test environment. Compared with the existing technology, for the entire measuring box 1 to change the air concentration, it greatly reduces the loss of the derived air source, and the action time is relatively reduced, shortening the waiting time and improving the working process. Furthermore, a storage tray 3 is provided under the interlayer barrel 2 to carry the products or impurities generated by the combustion of the asphalt test strip, ensuring the cleanliness of the device and increasing practical performance; in order to facilitate people to implement the ignition action and reduce to a certain extent Danger, an igniter 4 with a rotating and lifting function is provided at the oblique front of the interlayer barrel 2. The igniter 4 can freely adjust the direction of its end according to the progress and stop of the measurement work, ensuring that the igniter 4 can conveniently ignite the asphalt test strip and ensure the progress of the measurement work; further, a lifting component 5 is provided on the inner wall of the measurement box 1 behind the interlayer barrel 2 to control the position of the manipulator 6, providing a good test environment for the asphalt test strip to be measured, and the performance of use is improved. A manipulator 6 with a clamping function is provided at the front end of the lifting component 5, which is mainly used to clamp the asphalt test strip to be measured so that its placement position is accurate enough to meet the measurement workflow standards;In order to facilitate people to freely place asphalt test strips or take out the storage tray 3 for centralized processing, a rotating opening and closing door 7 is provided on one side of the measuring box 1. It is simple and convenient to operate and has a good sealing effect. A controller 8 for controlling the operation of the lifting component 5 is provided obliquely above one side of the opening and closing door 7. The controller 8 is controlled by the opening and closing door 7 to open and close, thereby realizing free control of the lifting component 5 and fully ensuring that the placement position of the test strips remains relatively consistent; further, in order to make it more convenient for people to control the action, the control system includes a support frame 9 provided on one side of the measuring box 1 to enhance the stability of the placement of the device. A control panel 91 is provided on the upper end of the support frame 9. The control panel 91 can control the opening and closing of the manipulator 6, the adjustment and opening and closing of the position of the igniter 4, and the gas supply. The on-off of the system and the change of air concentration, as well as the opening and closing of the air intake component 16 are conveniently provided. The circuit system of the above-mentioned components is integrated for people to use. Further, the gas transmission system includes a gas storage tank 10, a nitrogen source 11 and an oxygen source 12 for supplying the igniter 4. Of course, on the gas storage tank 10, the nitrogen source 11 and the oxygen source 12, on-off valves are provided to ensure safety. Further, the gas outlet ends of the nitrogen source 11 and the oxygen source 12 are connected to a gas mixer 13, and the output end of the gas mixer 13 is connected to the interlayer barrel 2, wherein the gas mixer 13 can adjust the ratio between the input nitrogen and oxygen to provide different air concentrations, and then use a pipeline to pass the mixed gas into the interlayer barrel 2, providing a prerequisite for measuring the change of air concentration in the test;

[0033] In the above process: by setting the lifting assembly 5, manipulator 6, igniter 4 and control panel 91 and other components, the degree of automation of the measuring device is improved to a certain extent, which is different from the existing method of relying on manual work, greatly reducing people's labor intensity, improving work progress, and saving time cost; by setting the opening and closing door 7 and controller 8, utilizing people's indispensable door opening and closing actions of the box body, combined with the establishment of the electromagnetic disk 83 and the electromagnetic induction switch 85, the discharge action is completed, thereby simply and conveniently realizing the free opening and closing of the lifting assembly 5, thereby ensuring the convenient gripping of the test strip to be measured by the manipulator 6. At the same time, under the effect of the controller 8, the accuracy of the placement of the test strip to be measured is achieved to a certain extent, and the equipment runs stably, has good effect, and is highly practical; by setting the interlayer barrel 2 and the gas transmission system, wherein the gas transmission system can simulate non- Under the same air concentration, it is used to measure the combustion effect of the asphalt test strips to be tested, ensure the diversification of the test data, provide people with research, and ensure the quality of product molding. The interlayer barrel 2 further limits the range of changes in different air concentrations. Compared with the existing technology, its air concentration change is more obvious, which not only reduces the loss of gas source derivation, but also relatively reduces the waiting time under the change of air concentration, and improves the work process; the device is reasonably designed, simple in structure, easy to process and can effectively improve the degree of automation of the measuring equipment to increase its practicality and improve the work process. At the same time, it realizes the stability, convenience and accuracy of the placement of the test strips to be measured, reduces labor intensity, saves time and cost, and saves the loss of the measuring equipment due to the test of different air concentration changes, relatively reduces the waiting time for the test, ensures the effective process of the test measurement, and meets the use requirements.

[0034] In order to improve the performance of the opening and closing door 7 and increase the smoothness of use, specifically, the opening and closing door 7 includes a placement plate 71 with a T-shaped cross section, which is used to be installed and connected to the measuring box 1. A rotating plate 72 is sleeved on the outer periphery of the placement plate 71, which can rotate freely relative to the placement plate 71 to ensure the effective realization of the opening and closing work. A handle 73 is provided at the front end of the rotating plate 72 to facilitate people to apply force and improve the convenience of operation. A limit strip 74 is tilted on the inner side of the rotating plate 72 to set the placement plate 71. The lock 71 is provided with a through hole 711, and six key-shaped sliding grooves 712 are evenly provided on the outer periphery of the through hole 711. A sealing plate 75 is provided between the limit bar 74 and the placement plate 71. A sliding rod 76 is provided in the sealing plate 75 and is adapted to the sliding groove 712. A key-shaped groove 741 adapted to the sliding rod 76 is provided in the limit bar 74. The specific description is as follows: when the opening and closing door 7 is in the closed state, the six sealing plates 75 abut against each other and fit tightly. When in use, people turn the handle 73 to drive The limit bar 74 rotates synchronously. At this time, the slide bar 76 is translated relative to the slide groove 712 on the one hand, and on the other hand, under the action of the key groove 741, it will also move relative to the limit bar 74. In this way, the sealing plate 75 can be driven to show a tendency of oblique movement to the outside. The six sealing plates 75 move synchronously to reveal the through hole 711 opened in the placement plate 71, making it convenient for people to freely take and place the device and equipment components in the measurement box 1, which is practical. Furthermore, an arc-shaped rack 77 is also provided on the outer periphery of the rotating disk 72 opposite to the turning handle 73. The arc-shaped rack 77 is designed in a bad arc shape. It rotates with the rotating disk 72 and applies the rotating power to the first gear 82, thereby ensuring that the controller 8 can realize the discharge action and complete the free control of the opening and closing of the lifting assembly 5. The effect brought by it is: it can ensure the consistency of the lifting distance of the lifting assembly 5, ensure good coordination performance between the various device and equipment components, ensure the accuracy of the placement position, and meet the use requirements.

[0035] In order to ensure that the controller 8 can freely control the opening and closing of the lifting assembly 5 under the action of the opening and closing door 7, specifically: the controller 8 includes a rotating shaft 81, and a first gear 82 is provided on the outer periphery of the rotating shaft 81 to engage with the arc-shaped rack 77, which can engage with the arc-shaped rack 77 on the opening and closing door 7, so that the rotation of the opening and closing door 7 can drive the electromagnetic disk 83 to rotate, thereby conveniently realizing the discharge action. The front end of the rotating shaft 81 is provided with an electromagnetic disk 83 that can rotate with the rotating shaft 81 and has a magnetic field strength. The electromagnetic disk 83 includes an insulating disk 831 that generates a magnetic field, and a plurality of magnetized iron columns are provided at the edge of the insulating disk 831. 832, specifically described as: a circular hole is opened at the outer edge of the insulating disk 831, and the iron column 832 is a plurality of parts with the same diameter and length that are cut and riveted into the circular hole of the insulating disk 831 to achieve interference fit. A magnetizer is used to magnetize the iron column 832 from scratch according to the magnetizing DC current, and multiple iron columns 832 are magnetized in turn, and a magnetic field detector is used to test the magnetic field strength: the magnetic field strength is evenly distributed. When people turn the opening and closing door 7 to open, the rotational force acts on the arc-shaped rack 77, and drives the first gear 82 to rotate, and then drives the electromagnetic disk 83 to rotate, providing it with a subsequent discharge. For convenience; the controller 8 also includes a carrier 84 with a concave design, and an electromagnetic induction switch 85 is provided at the front end of the carrier 84 and is located on one side of the electromagnetic disk 83, wherein the electromagnetic induction switch 85 is also provided with a coil with low resistance (not shown in the figure), and is placed stationary relative to the electromagnetic disk 83. Specifically, according to the relevant magnetic field principles in physics, when the electromagnetic disk 83 rotates, the magnetic field on its iron column 832 rotates relative to the coil, and accordingly generates an action of cutting the magnetic flux lines, thereby discharging. At the same time, the electromagnetic induction switch 85 is electrically connected to the second cylinder 57, and the electromagnetic disk 83 rotates. When the second cylinder 57 is in working condition, the lifting assembly 5 is ensured to be in motion, which brings convenience to the manipulator 6 being lifted out of the interlayer barrel 2. The design is reasonable, the operation is simple, and it has good practicality. Of course, when people close the opening and closing door 7, that is, when it rotates in the reverse direction, the electromagnetic disk 83 will also rotate in the reverse direction and act on the electromagnetic induction switch 85, thereby controlling the direction of the second cylinder 57. Correspondingly, the manipulator 6 components are lowered, and in this process, the lifting distance of the manipulator 6 remains relatively consistent, with better stability and relatively accurate placement, which ensures the effective implementation of the measurement work and meets the use requirements.

[0036] In order to improve the rationality of the design of the device, the lifting assembly 5 includes a lifting plate 51 with a T-shaped design. On the one hand, its load-bearing function ensures the stability of the establishment of each device component, and on the other hand, it can ensure the effective implementation of the lifting action. Further, two sliders 52 are symmetrically arranged at the corners of the end face of one side of the lifting plate 51, and a first rack 53 is arranged between the two sliders 52, which provides a prerequisite for its subsequent free lifting, and the slider 52 cooperates with the slide bar 55 to limit its moving direction and moving range, prevent it from offset, and improve smoothness; further, in order to achieve effective clamping of the asphalt test strip to be measured, specifically, an extension plate 54 is arranged at the front end of the other side of the lifting plate 51, and the manipulator 6 includes a first cylinder 61 arranged at the upper end of the short side of the lifting plate 51, and a limit block 62 is arranged on the upper end of the extension plate 54. A moving rod 63 is arranged in the limit block 62, and one end of the moving rod 63 is connected to the first cylinder 61. The other end is provided with a triangular lifting plate 64, and a positioning rotating rod 65 is provided at the corner of the front end above the extension plate 54. A rotatable and obtuse-angled clamping claw 66 is provided in the positioning rotating rod 65. A roller 67 is provided inside the clamping claw 66 near the lifting plate 64. The roller 67 is in contact with the lifting plate 64. The specific description is as follows: after the manipulator 6 is in a suitable position under the drive of the lifting assembly 5, people place the asphalt test strip to be measured into the measurement box 1 from the opening and closing door 7, especially the position near the clamping claw 66, control the second cylinder 57 to operate, and push the connecting rod to drive the lifting plate 64 to move to one side of the corner near the extension plate 54, and use the contact between the two side edges of the lifting plate 64 and the roller 67 to drive the clamping claw 66 to rotate under the action of the positioning rotating rod 65. In this way, the two clamping claws 66 rotate towards each other to complete the clamping of the test strip to be measured. The operation is simple and convenient, with strong practicality, and effectively improves the work process.

[0037] In order to further improve the practicality of the lifting assembly 5, the lifting assembly 5 also includes two symmetrically arranged slide bars 55, which are adapted to the slider 52, and a second rack 56 is provided between the two slide bars 55. The lifting assembly 5 also includes a second cylinder 57, and a concave connecting seat 571 is provided on the upper end of the second cylinder 57. A second gear 58 is provided in the connecting seat 571. The second gear 58 is engaged with the first rack 53 and the second rack 56 respectively. The specific description is: when the controller 8 is running, the electromagnetic induction switch 85 is controlled to be turned on. At this time, the second cylinder 57 is running and presents an extended state, thereby lifting the connecting seat 571 upward, and the second gear 58 rotates under the action of the second cylinder 57. Using the second gear 5 8 is meshed with the first rack 53 and the second rack 56, the second gear 58 moves upward and rotates, driving the first rack 53 to move upward, and then driving the manipulator 6 component to rise. Considering that the running time of the controller 8 is related to the rotation of the opening and closing door 7, that is, the meshing between the arc-shaped rack 77 and the first gear 82 drives the electromagnetic disk 83 to rotate and realizes discharge, thereby acting on the electromagnetic induction switch 85, it needs to be further explained that the duration of the discharge process is related to the rotation of the opening and closing door 7, especially the length of the inferior arc of the arc-shaped rack 77. Of course, the establishment of the inferior arc length of the arc-shaped rack 77 is related to the rotation range of the opening and closing door 7 at the maximum opening and closing degree. In this way, people can adjust the operating time of the manipulator 6 according to the operation time of the controller 8. The maximum lifting distance is used to install various devices and equipment to avoid the phenomenon of top impact, which improves the functionality of the device and equipment. Of course, when people close the opening and closing door 7, it rotates in the opposite direction, thereby driving the electromagnetic disk 83 to rotate in the opposite direction and realize reverse discharge. At this time, it acts on the electromagnetic induction switch 85, thereby controlling the operation of the second cylinder 57 and presenting a contracted state, driving the second gear 58 to run in the opposite direction, and under the meshing action between various components, driving the manipulator 6 to descend. Based on the fact that its rising distance is determined, its falling distance is also certain, which ensures the consistency, stability and safety of the placement of the manipulator 6, and the ignition action is more convenient and practical, meeting the use needs; in order to reduce damage to the device and equipment The possibility of relatively extending its service life. Specifically, two L-shaped protective plates 14 are symmetrically arranged on the outside of the lifting component 5. The two protective plates 14 constitute a protective area for protecting the lifting component 5. Of course, there is a gap between the short sides of the two protective plates 14 to facilitate the free lifting of the lifting plate 51. At the same time, in order to further protect the internal components of the lifting component 5, a foldable and telescopic protective cover 15 is also provided between the protective plates 14 on the upper and lower sides of the lifting plate 51. The protective cover 15 has good telescopic and folding performance, which can be contracted or stretched according to the lifting of the lifting plate 51, thereby realizing all-round protection of the lifting component 5, avoiding infection, extending service life, and saving production costs.

[0038] In order to increase the convenience of using the igniter 4 and to improve the working process, specifically, the igniter 4 includes a rotating disk 41 arranged at the lower end of the inner side of the measuring box 1. The selected rotating disk 41 is preferably electrically driven to rotate, which can provide convenience for people to adjust the position of the igniter 4. A telescopic rod 42 is provided at the upper end of the rotating disk 41 for freely adjusting the height of the igniter 4 in the vertical direction. A gas supply pipe 43 is provided at the upper end of the telescopic rod 42, which is specifically described as follows: the interior of the gas supply pipe 43 is designed in an ∞ shape, one side of the interior is used to transport gas, and the other side provides convenience for the placement of the line of the ignition device 44. Further, a gas connecting pipe and a cable are respectively provided on the outer periphery of one side of the gas supply pipe 43 near the telescopic rod 42. The gas connecting pipe is connected to the gas storage tank 10 to ensure the transportation of fuel, and the cable is connected to the control panel 91 to realize the control of the ignition action. A flame nozzle 431 is provided at the end of the gas supply pipe 43, and an ignition device 44 is provided on the outer periphery of the gas supply pipe 43 near the flame nozzle 431. The ignition device 44 is the main component of the igniter 4, which can ignite the gas fuel supplied. In this way, after the flame nozzle 431 generates a flame, people can freely adjust its height and rotation angle so that the flame nozzle 431 can ignite the upper end of the asphalt material to be measured, thereby ensuring the effective progress of the measurement test. Of course, the size of the flame of the flame nozzle 431 can be adjusted by people by operating the control panel 91. It should be further explained that the above-mentioned ignition device 44 and the specific ignition control method are similar to the technical means of existing gas stoves (coal stoves). Its specific working principle and working method will not be repeated here. For technical personnel in the relevant technical field, this technical means can be effectively known and applied.

[0039] In order to achieve effective absorption of the smoke generated during the measurement test, an intake assembly 16 is provided at the upper end of the measurement box 1. Furthermore, in order to ensure that the intake assembly 16 has good performance, the intake assembly 16 includes a smoke output pipe 161 that runs through the measurement box 1, which plays the main role of conveying smoke. The lower end of the smoke output pipe 161 is provided with an intake cover 162. Of course, the intake cover 162 is also provided with a filter (not shown in the figure), which can filter out the smoke generated by the combustion of asphalt materials. A smoke concentration sensor 163 is provided on the periphery of the upper end of the smoke output pipe 161. Its function is to obtain the concentration of each component in the smoke generated during the combustion process, especially harmful gases, so that people can better study the combustion of flame retardant asphalt. The combustion process and the flame retardant mechanism of the flame retardant asphalt are analyzed, and then the smoke suppression performance of the asphalt material is judged to meet the measurement requirements; further, in order to realize the real-time detection of the temperature in the measurement box 1, an infrared temperature sensor 17 is arranged in front of the suction component 16, wherein the measurement position of the infrared temperature sensor 17 is facing the combustion part of the asphalt material test strip to reduce the measurement error. At the same time, considering the safety during the measurement test, a smoke alarm 18 is provided on one side of the suction component 16, which can alarm for the phenomenon of generating relatively thick smoke during the combustion process of individual asphalt test strips to be measured, providing people with sufficient processing and reaction time to prevent the situation from further escalating, reduce the degree of damage to the device and equipment, and ensure safety.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification, equivalent change, and modification of the above embodiments made in accordance with the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A flame retardant performance measuring device for flame retardant asphalt pavement in a highway tunnel, comprising a measuring device body for testing the flame retardant performance of asphalt materials, a control system, and a gas transmission system, characterized in that: The measuring device body includes a measuring box, a sandwich barrel with a protective gas guiding function is provided at the geometric center of the measuring box, a plurality of air outlet holes are evenly opened on the inner wall of the sandwich barrel, a storage tray is provided below the sandwich barrel, an igniter with rotation and lifting functions is provided at the oblique front of the sandwich barrel, a lifting assembly is provided on the inner wall of the measuring box behind the sandwich barrel, a manipulator with a clamping function is provided at the front end of the lifting assembly, a rotating opening and closing door is provided on one side of the measuring box, and a controller for controlling the operation of the lifting assembly is provided at an oblique upper side of one side of the opening and closing door, the control system includes a support frame provided on one side of the measuring box, a control panel is provided on the upper end of the support frame, the gas transmission system includes a gas storage tank, a nitrogen source and an oxygen source for supplying the igniter, the gas outlet ends of the nitrogen source and the oxygen source are connected to a gas mixer, the output end of the gas mixer is connected to the sandwich barrel, and the opening and closing door includes a horizontal The cam is provided with a plurality of locking plates, the locking plates being arranged on a circle with the centre being the centre of the cam, the locking plates being arranged on a circle with the centre being the centre of the cam, and the locking plates being arranged on a circle with the centre being the centre of the cam.

2. The flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels according to claim 1, characterized in that: The lifting assembly includes a lifting plate designed in a T shape, two sliders are symmetrically provided at the corners of one end face of the lifting plate, a first rack is provided between the two sliders, and an extension plate is provided at the front end of the other side of the lifting plate, the manipulator includes a first cylinder arranged at the upper end of the short side of the lifting plate, a limiting block is provided at the upper end of the extension plate, a moving rod is provided in the limiting block, one end of the moving rod is connected to the first cylinder, and a lifting plate designed in a triangular shape is provided at the other end of the moving rod, a positioning rotating rod is provided at the corner of the front end above the extension plate, a rotatable clamping jaw designed in an obtuse angle is provided in the positioning rotating rod, and a roller is provided inside the side of the clamping jaw close to the lifting plate, and the roller is in contact with the lifting plate.

3. The flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels according to claim 2, characterized in that: The lifting assembly also includes two symmetrically arranged sliding bars, which are adapted to the slider, and a second rack is provided between the two sliding bars. The lifting assembly also includes a second cylinder, and a concave connecting seat is provided on the upper end of the second cylinder. A second gear is provided in the connecting seat, and the second gear is respectively engaged with the first rack and the second rack. Two L-shaped protective plates are symmetrically provided on the outside of the lifting assembly, and the two protective plates constitute a protective area for protecting the lifting assembly. A foldable and telescopic protective cover is also provided between the protective plates on the upper and lower sides of the lifting plate.

4. The flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels according to claim 3, characterized in that: The igniter includes a rotating disk arranged at the lower end of the inner side of the measuring box, a telescopic rod is provided at the upper end of the rotating disk, a gas supply pipe is provided at the upper end of the telescopic rod, a flame nozzle is provided at the end of the gas supply pipe, and an ignition device is provided on the outer periphery of the gas supply pipe near the flame nozzle.

5. The flame retardant performance measuring device for flame retardant asphalt pavement in highway tunnels according to claim 4, characterized in that: An air suction component is provided at the upper end of the measuring box, and the air suction component includes a smoke output pipe arranged through the measuring box, an absorption hood is provided at the lower end of the smoke output pipe, a smoke concentration sensor is provided on the periphery of the upper end of the smoke output pipe, an infrared temperature sensor is provided in front of the air suction component, and a smoke alarm is provided on one side of the air suction component.

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