CN213600539U - Poisonous substance diffusion test device under explosion action - Google Patents

Abstract

The utility model provides a poison diffusion test device under the action of explosion, which comprises an identification area, an explosion area and a control area, the identification area is internally provided with an identification screen, the explosion area is internally provided with a test object, the control area is internally provided with a high-speed camera, the test object can be orthographically projected onto the identification screen, the projections of the test object and the high-speed camera on the identification screen are coincident, a control assembly is arranged in the control area and used for controlling the high-speed camera to shoot and the test object to explode, the control component comprises a detonation controller and a terminal controller, the detonation controller is connected with the test object, the terminal controller is connected with the high-speed camera, the poison diffusion testing device under the action of explosion further comprises a movable shelter, and the movable shelter is used for blocking splashes generated when the test objects explode. The utility model discloses a poison diffusion test device has higher precision under the explosion effect.

Description

Poisonous substance diffusion test device under explosion action

The technical field is as follows:

the utility model relates to an explosion simulation technical field especially relates to a poison diffusion test device under explosion effect.

Background art:

in recent years, the continuous dangerous chemical explosion accidents are integrated with 'burning, explosion and toxicity', and are various in types, large in quantity and serious in harm. In the accident rescue process, the spreading condition of the toxicant under the action of explosion is not clear, the concentration distribution and the law of the toxicant are not mastered, the chemical hazard type and the hazard degree can be only roughly judged, and the accurate protection is difficult to carry out, so that the rescue work progress is slow. The process of diffusion of poisons under the action of an explosion can be roughly two stages: an explosion dispersion section and a cloud dispersion section. The explosion dispersion section refers to that the poison is strongly thrown under the action of shock waves, and the cloud cluster dispersion section refers to that the poison cloud cluster overcomes the gravity and the rising resistance under the action of buoyancy and performs thermal lifting movement relative to the atmosphere. The strong shock wave of the explosion dispersion section plays a leading role in the diffusion of poisons, and the damage in the explosion dispersion range is the most serious and is the rescue core area. The explosion effect directly affects the diameter and range of the primary cloud cluster, the aerosol particle size and the concentration distribution of the poison in the cloud cluster, so that all items after the explosion dispersion section is finished are the initial conditions of the cloud cluster diffusion section.

At present, researchers in relevant fields at home and abroad mostly assume that the poison is continuously released at a constant speed when studying the spread of the poison, namely, the situation under the action of explosion is not considered. When the poison diffusion under the action of explosion is researched, due to the complexity of the explosion process, the poison in the primary cloud cluster after explosion is generally assumed to be uniformly distributed, and a corresponding numerical model and a corresponding calculation method are established according to the assumption, although the diffusion tendency of the cloud cluster after explosion can be approximately reflected, the error between the calculated value and the actual poison cloud cluster diffusion value is large, and the calculation method is not beneficial to being used in the actual rescue process.

Therefore, there is a need in the art for a device for testing the diffusion of poisons under an explosive action.

In view of this, the present invention is proposed.

The utility model has the following contents:

an object of the utility model is to provide a poison diffusion test device under explosion effect with higher measurement accuracy to solve at least one technical problem among the prior art.

In particular to a poison diffusion test device under the action of explosion, which comprises an identification area, an explosion area and a control area, the identification area is internally provided with an identification screen, the explosion area is internally provided with a test object, the control area is internally provided with a high-speed camera, the test object can be orthographically projected onto the identification screen, the projections of the test object and the high-speed camera on the identification screen are coincident, a control assembly is arranged in the control area and used for controlling the high-speed camera to shoot and the test object to explode, the control component comprises a detonation controller and a terminal controller, the detonation controller is connected with the test object, the terminal controller is connected with the high-speed camera, the poison diffusion testing device under the action of explosion further comprises a movable shelter, and the movable shelter is used for blocking splashes generated when the test objects explode.

Adopt above-mentioned scheme, can carry out the record analysis through high-speed camera and background curtain cloth to poison diffusion cloud cluster in the dispersion section of explosion, for the diffusion of simulation poison under the explosion provides experimental data, fully reduced the process of poison diffusion under the explosion to can make the experimental data that the simulation poison that obtains diffused under the explosion more accurate, just the utility model discloses a device subassembly is simple, and it is convenient to explode, is convenient for experimental.

Preferably, a marker is further arranged in the marker area, the marker is arranged between the marker curtain and the test object, and the marker can be orthographically projected onto the marker curtain.

Furthermore, the markers are in a grid shape, and the orthographic projection on the identification screen can divide the identification screen into grids with uniform sizes.

Furthermore, the marker comprises a marking line and an adjusting bracket, the marking line is connected with the adjusting bracket, and the adjusting bracket can adjust the size of the grid formed by the marking line.

Further, adjust the support and include dead lever and movable rod, the movable rod is provided with a plurality ofly, the movable rod sets up for cavity, the movable rod cup joints on the dead lever, can relative displacement between movable rod and dead lever, can relative displacement between the movable rod, the sign line is connected with movable rod and dead lever.

Furthermore, the movable rod comprises a plurality of inner diameters, and the movable rod is sequentially sleeved according to the size of the inner diameters.

Furthermore, movable rods are symmetrically sleeved at two ends of the fixed rod.

Adopt above-mentioned structure, can carry out real-time adjustment to the size of the net of marker, make the marker can with multiple use scene looks adaptation, effectively improve the utility model discloses measuring universality.

Preferably, both ends of the movable rod are respectively provided with a tightening opening and an expansion opening, the inner diameter of the tightening opening is smaller than the average inner diameter of the movable rod, and the outer diameter of the expansion opening is larger than the average outer diameter of the movable rod.

Furthermore, the two ends of the fixed rod are respectively provided with an expansion port, the outer diameter of the expansion port is larger than the average outer diameter of the fixed rod, and the expansion port on the fixed rod is matched with and abutted against the contraction port of the movable rod connected with the expansion port.

Furthermore, the tightening opening is provided with a supporting buckle, the expansion opening is provided with a supporting groove, the supporting buckle is matched with the supporting groove, and the supporting buckle and the supporting groove can be provided with a plurality of grooves.

Furthermore, the fixed rod and the movable rod are also provided with limiting lugs, the limiting lugs are arranged on the outer wall of the fixed rod and the inner wall and the outer wall of the movable rod, and the limiting lugs are used for limiting the relative movement between the fixed rod and the movable rod or the movable rod, so that the position relation between the fixed rod and the movable rod or the movable rod is fixed.

Furthermore, the limiting convex blocks can be arranged on the fixed rod or the movable rod in a plurality.

Furthermore, the limiting lug comprises a limiting edge and a limiting groove, and the limiting edge and the limiting groove are matched, namely the limiting edge can pass through the limiting groove.

When the adjusting bracket is in the maximum extension state, the abutting buckle is connected with the abutting groove.

When in use, when the connected fixed rod and the movable rod or the two movable rods are positioned at the corresponding angles of the abutting buckle and the abutting groove, the movable rod is pulled to enable the fixed rod and the movable rod or the two movable rods to relatively displace, the connected fixed rod and the movable rod or the limiting edges on the two movable rods can be abutted mutually, the stretching distance between the fixed rod and the movable rod or the two movable rods is fixed, at the moment, the fixed rod or the movable rod is twisted, the abutting buckle and the abutting groove are not positioned at the corresponding angles, the abutting limiting edges can rotate along with the rotation, the movable rod is continuously pulled, and the mutually abutted limiting edges pass through the limiting grooves, the fixed rod and the movable rod or the two movable rods are rotated to return the abutting buckle and the abutting groove to be at the corresponding angle, the change of different telescopic lengths between the fixed rod and the movable rod or between the two movable rods can be realized, and the adjustment of the size of the grid formed by the adjusting identification lines is further realized.

Preferably, the explosion area is arranged between the identification area and the control area and is covered by the identification area and the control area, and the identification area is connected with the control area.

Further, the explosion area is arranged in the control area in a semi-cladding mode.

By adopting the structure, the camera can be controlled to shoot when the explosion is carried out in the explosion area, shooting is carried out from multiple angles, and the accuracy of data collection is improved.

Preferably, the test object comprises a stimulation explosive column, a explosive column and a shell, the explosive column is coated in the stimulation explosive column, the stimulation explosive column is coated in the shell, the stimulation explosive column is used for simulating spread poisons, and the explosive column is used for simulating an explosion state.

By adopting the structure, the process of toxic substance diffusion under the action of reduction and explosion can be completely realized.

Preferably, the control assembly further comprises an ignition device, and the ignition device is connected with the test object and the detonation controller and is used for detonating the test object.

Furthermore, the control assembly further comprises a wind direction anemoscope, the wind direction anemoscope is connected with the terminal controller, and the terminal controller can display wind direction and wind speed data measured by the wind direction anemoscope.

By adopting the structure, the user can observe the wind speed and the wind direction in the test in real time through the terminal controller, and adjust the test according to the wind speed and the wind direction.

Preferably, the mobile shelter comprises a covering plate and a mobile wheel, the mobile wheel is arranged at the bottom end of the covering plate, and the mobile shelter can move through the mobile wheel.

Further, a window is arranged on the shielding plate, and the window can be used for observation of a user or shooting by a high-speed camera.

By adopting the structure, the safety of the test can be effectively improved, and the test is not influenced.

Preferably, the plane size of the identification screen is more than or equal to 60-100 times of the area of the test object orthographic projection on the identification screen.

To sum up, the utility model discloses following beneficial effect has:

1. the utility model can record and analyze the poison diffusion cloud cluster in the explosion dispersion section through the high-speed camera and the background curtain cloth, provide test data for simulating the diffusion of the poison under the explosion action, and fully reduce the process of the poison diffusion under the explosion action;

2. the utility model can make the obtained test data of the diffusion of the simulated poison under the action of explosion more accurate, and the device of the utility model has simple components, convenient initiation and convenient test;

3. the utility model discloses a size of the net of marker is adjusted in real time, makes the marker can effectively improve with multiple use scene looks adaptation the utility model discloses a universality.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic top view of a device for testing the diffusion of a toxic substance under an explosive action according to the present invention;

FIG. 2 is a schematic structural view of an embodiment of a marker of the present invention;

FIG. 3 is a perspective view of an embodiment of the adjustable support of the present invention in an extended state;

FIG. 4 is a cross-sectional view of an embodiment of the adjustable support of the present invention in an extended state;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a cross-sectional view of an embodiment of the adjustable support of the present invention in a contracted state;

FIG. 7 is a perspective view of one embodiment of a securing lever of the present invention;

fig. 8 is a perspective view of an embodiment of a stop lug of the present invention;

FIG. 9 is a perspective view of one embodiment of a movable bar of the present invention;

FIG. 10 is a cross-sectional view of one embodiment of a movable bar of the present invention;

FIG. 11 is a perspective view of one embodiment of a mobile shelter of the present invention;

FIG. 12 is a sectional view of one embodiment of a test piece according to the present invention.

Description of reference numerals:

through the above reference sign explanation, combine the embodiment of the utility model, can more clearly understand and explain the technical scheme of the utility model.

1. An identification area; 2. an explosion zone; 3. a control area; 4. marking a screen; 5. a test substance; 51. stimulating the grains; 52. explosive columns; 53. a housing; 6. a high-speed camera; 7. a control component; 8. moving the shelter; 81. a masking plate; 811. windowing; 82. a moving wheel; 9. a marker; 91. marking a line; 92. adjusting the bracket; 921. fixing the rod; 922. a movable rod; 9221. a beam-closing port; 9222. an expansion port; 9223. buckling; 9224. a butting groove; 9225. passing through the slot; 923. a limiting bump; 9231. a limiting edge; 9232. a limiting groove.

The specific implementation mode is as follows:

reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The present invention will be described in detail below by way of examples.

As shown in fig. 1, the utility model provides a poison diffusion test device under explosion action, the poison diffusion test device under explosion action includes identification area 1, explosion area 2 and control area 3, be provided with sign curtain 4 in the identification area 1, be provided with test article 5 in the explosion area 2, be provided with high-speed camera 6 in the control area 3, test article 5 can orthographic projection to sign curtain 4, test article 5 and high-speed camera 6 coincide in the projection on sign curtain 4, be provided with control assembly 7 in the control area 3, control assembly 7 is used for controlling high-speed camera 6 to make a video recording and test article 5 explode, control assembly 7 includes detonation controller, terminal controller, detonation controller is connected with test article 5, terminal controller is connected with high-speed camera 6, poison diffusion test device under explosion action still includes and removes the cover 8, the moving shelter 8 is used to block the spatter generated when the test object 5 explodes.

Adopt above-mentioned scheme, can carry out the record analysis through high-speed camera 6 and background curtain cloth to poison diffusion cloud cluster in the dispersion section of explosion, for the diffusion of simulation poison under the explosion provides experimental data, fully reduced the process of poison diffusion under the explosion to can make the experimental data that the simulation poison that obtains diffused under the explosion more accurate, just the utility model discloses a device subassembly is simple, and detonation convenience is convenient for experimental.

In some preferred embodiments of the present invention, the sign screen 4 is blue, which can effectively highlight the explosion process, and is convenient for observing the explosion process.

As shown in fig. 2 to 4, a marker 9 is further disposed in the identification area 1, the marker 9 is disposed between the identification screen 4 and the test object 5, the marker 9 can be orthographically projected onto the identification screen 4, the marker 9 is in a grid shape, the orthographically projected on the identification screen 4 can divide the identification screen 4 into grids with uniform sizes, the marker 9 includes a plurality of identification lines 91 and an adjusting bracket 92, the identification lines 91 are connected to the adjusting bracket 92, the adjusting bracket 92 can adjust the size of the grids formed by the identification lines 91, the adjusting bracket 92 includes a fixing rod 921 and a plurality of movable rods 922, the movable rods 922 are hollow, the movable rods 922 are sleeved on the fixing rod 921, the movable rods 922 can relatively displace with respect to the fixing rod 921, the movable rods 922 can relatively displace, the identification lines 91 are connected to the movable rods 922 and the fixing rod 921, the movable rod 922 comprises a plurality of inner diameters, the movable rod 922 is sequentially sleeved according to the inner diameters, and the movable rod 922 is symmetrically sleeved at two ends of the fixed rod 921. Adopt above-mentioned structure, can carry out real-time adjustment to the size of the net of marker 9, make marker 9 can with multiple use scene looks adaptation, effectively improve the utility model discloses measured universality.

The utility model discloses an in some preferred embodiments, can give out light on the identification line 91, further, identification line 91 can give out one or several kinds in ruddiness, the orange light, can make identification line 91 more striking, is convenient for observe.

In some preferred embodiments of the present invention, the identification line 91 may be provided with a LED strip for emitting light.

As shown in fig. 5-10, the two ends of the movable rod 922 are respectively provided with a converging opening 9221 and an expanding opening 9222, the inner diameter of the converging opening 9221 is smaller than the average inner diameter of the movable rod 922, the outer diameter of the expanding opening 9222 is larger than the average outer diameter of the movable rod 922, the two ends of the fixed rod 921 are respectively provided with an expanding opening 9222, the outer diameter of the expanding opening 9222 is larger than the average outer diameter of the fixed rod 921, the expanding opening 9222 of the fixed rod 921 is matched and abutted with the converging opening 9221 of the movable rod 922 connected with the fixed rod 921, the converging opening 9221 is provided with a buckle 9223, the expanding opening 9222 is provided with a buckle 9224, the buckle 9223 is matched with the buckle 9224, the buckle 9223 and the buckle 9224 can be provided with a plurality of buckles, the fixed rod 921 and the movable rod 922 are further provided with a limiting bump 923, the limiting bump 923 is arranged on the outer wall and the inner wall and the outer wall of the fixed rod 921, spacing lug 923 is used for restricting dead lever 921 and movable rod 922 or the relative movement between movable rod 922, makes the dead lever 921 fixed with movable rod 922 or the position relation between movable rod 922, spacing lug 923 can be provided with a plurality ofly on dead lever 921 or movable rod 922, spacing lug 923 includes spacing arris 9231 and spacing groove 9232, spacing arris 9231 and spacing groove 9232 cooperate, promptly spacing arris 9231 can pass through spacing groove 9232.

When the adjusting bracket 92 is in the maximum extension state, the abutting buckle 9223 is connected with the abutting groove 9224.

When the device is used, when the fixed rod 921 and the movable rod 922 or the two movable rods 922 are connected, the abutting 9223 and the abutting groove 9224 are at corresponding angles, the movable rod 922 is pulled, so that the fixed rod 921 and the movable rod 922 or the two movable rods 922 are relatively displaced, the limit edges 9231 on the fixed rod 921 and the movable rod 922 or the two movable rods 922 are abutted with each other, the stretching distance between the fixed rod 921 and the movable rod 922 or the two movable rods 922 is fixed, at the moment, the fixed rod 921 or the movable rod 922 is twisted, the abutting 9223 and the abutting groove 9224 are not at corresponding angles, the abutting limit edges 9231 are rotated, the movable rod 922 is continuously pulled, after the abutting limit edges 9231 pass through the limiting grooves 9232, the fixed rod 921 and the movable rod 922 or the two movable rods 922 are rotated back to abut the abutting 9223 and the abutting groove 9224 at corresponding angles, that the fixed rod 921 and the movable rod 922 or the two movable rods 922 are at different stretching lengths, thereby realizing the adjustment of the size of the grid formed by the adjustment marking lines 91.

In some preferred embodiments of the present invention, a through groove 9225 is further disposed on the tightening opening 9221, the through groove 9225 is matched with the limiting lug 923 for the limiting lug 923 to pass through.

In some preferred embodiments of the utility model, the receipts of movable rod 922 mouthful 9221 lateral wall can be connected with symmetrical movable rod 922 receives the lateral wall detachable of mouthful 9221, can be convenient for adjust support 92 and accomodate.

In some preferred embodiments of the present invention, the side wall of the closing opening 9221 of the movable rod 922 can be connected to the side wall of the closing opening 9221 of the symmetrical movable rod 922 by a buckle.

The utility model discloses an among some preferred embodiments, the receipts of movable rod 922 mouthful 9221 lateral wall can be received with symmetrical movable rod 922 and mouthful 9221's lateral wall adopts the magnetism material to be connected, and is further, the magnetism material adopts one or several kinds among neodymium iron boron magnet, samarium cobalt magnet, alnico permanent-magnet alloy, magnet, nickel zinc ferrite.

As shown in fig. 1, the explosion area 2 is disposed between the identification area 1 and the control area 3 and is covered by the identification area 1 and the control area 3, the identification area 1 is connected with the control area 3, and the explosion area 2 is disposed in the control area 3 in a half-covered manner. By adopting the structure, the camera 6 in the control device can be used for shooting when explosion occurs in the explosion area 2, shooting is carried out from multiple angles, and the accuracy of data collection is improved.

As shown in fig. 12, the test object 5 includes a stimulation grain 51, a explosive grain 52, and a housing 53, the explosive grain 52 is enclosed in the stimulation grain 51, the stimulation grain 51 is enclosed in the housing 53, the stimulation grain 51 simulates a spread poison, and the explosive grain 52 simulates an explosion state. By adopting the structure, the process of toxic substance diffusion under the action of reduction and explosion can be completely realized.

In some preferred embodiments of the present invention, the housing 53 is made of polylactic acid, the stimulation column 51 is made of one of chloroacetone and Adam's reagent, and the explosive column 52 is made of passivated hexogen. In a specific implementation process, the control assembly 7 further comprises an ignition device, the ignition device is connected with the test object 5 and the detonation controller and used for detonating the test object 5, the control assembly 7 further comprises a wind direction anemoscope, the wind direction anemoscope is connected with a terminal controller, and the terminal controller can display wind direction and wind speed data measured by the wind direction anemoscope. By adopting the structure, the user can observe the wind speed and the wind direction in the test in real time through the terminal controller, and adjust the test according to the wind speed and the wind direction.

As shown in fig. 11, the mobile shelter 8 comprises a shelter plate 81 and a mobile wheel 82, the mobile wheel 82 is arranged at the bottom end of the shelter plate 81, the mobile shelter 8 can move through the mobile wheel 82, a window 811 is arranged on the shelter plate 81, and the window 811 can be used for observation of a user or shooting by the high-speed camera 6. By adopting the structure, the safety of the test can be effectively improved, and the test is not influenced.

In some preferred embodiments of the present invention, a transparent plate may be disposed on the window 811, and the transparent plate may be made of one or more of organic glass (PMMA), Polycarbonate (PC), polypropylene (PP), polyvinyl chloride (PVC), and Polystyrene (PS).

In a specific implementation process, the plane size of the identification screen 4 is more than or equal to 60-100 times of the area of the test object 5 projected on the identification screen 4.

In the specific implementation process, the sample site is an open-air target site with stable airflow at normal temperature, and the ground is a cement ground. During ground explosion, the sample bomb is vertically placed on the ground, the high-speed camera 6 is told to be placed right in front of the sample bomb, the distance is 40 meters, and the angle and the position are adjusted to shoot. During air explosion, the sample bomb is suspended at a position 1.5 meters away from the ground, and the high-speed camera 6 is placed right in front of the position 40 meters away from the sample bomb and located at the same horizontal height. The horizontal safe distance between the curtain and the sample bomb is 4.6 meters, so that the observation effect is enhanced and the cloud cluster range is determined.

In some preferred embodiments of the present invention, the high-speed camera 6 is a fastcamsa3 model manufactured by photron corporation of japan, and captures images with a maximum amplitude frequency of 120000 frames/second and a minimum amplitude frequency of 50 frames/second. Can combine the actual and image definition requirement of explosion dispersion process to debug during the shooting the utility model discloses an in some preferred embodiments, adopt 10000 width of cloth/second, resolution ratio is greater than 512256, the image of gathering can be recorded as data file to handle the analysis through special software.

In some preferred embodiments of the present invention, the terminal controller is a computer terminal.

To sum up, the utility model can record and analyze the poison diffusion cloud cluster in the explosion dispersion section through the high-speed camera 6 and the background curtain cloth, provide test data for simulating the diffusion of the poison under the explosion action, and fully restore the process of the poison diffusion under the explosion action; the utility model can make the obtained test data of the diffusion of the simulated poison under the action of explosion more accurate, and the device of the utility model has simple components, convenient initiation and convenient test; the utility model discloses a size of marker 9's net is adjusted in real time, makes marker 9 can effectively improve with multiple use scene looks adaptation the utility model discloses a universality.

It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall into the protection scope of the claims of the present invention.

Claims (10)

1. A poison diffusion test device under explosion action is characterized in that: poison diffusion test device includes identification area (1), explosion area (2) and control area (3) under the explosion effect, be provided with sign curtain (4) in identification area (1), be provided with test thing (5) in explosion area (2), be provided with high-speed camera (6) in control area (3), on test thing (5) can orthographic projection sign curtain (4), the projection of test thing (5) and high-speed camera (6) on sign curtain (4) coincides mutually, poison diffusion test device is still including removing cover (8) under the explosion effect, remove cover (8) and be used for blockking the splash that produces when test thing (5) explodes.

2. The apparatus for testing the diffusion of a toxic substance under the action of an explosion according to claim 1, wherein: the identification area (1) is also internally provided with a marker (9), the marker (9) is arranged between the identification curtain (4) and the test object (5), and the marker (9) can be orthographically projected onto the identification curtain (4).

3. The device for testing the diffusion of a toxic substance under the action of an explosion according to claim 2, wherein: the markers (9) are in a grid shape, and the orthographic projection on the identification screen (4) can divide the identification screen (4) into grids with uniform sizes.

4. The device for testing the diffusion of a toxic substance under the action of an explosion according to claim 3, wherein: the marker (9) comprises a marking line (91) and an adjusting bracket (92), the marking line (91) is connected with the adjusting bracket (92), and the adjusting bracket (92) can adjust the size of a grid formed by the marking line (91).

5. The device for testing the diffusion of a toxic substance under the action of an explosion according to claim 4, wherein: adjust support (92) including dead lever (921) and movable rod (922), movable rod (922) are provided with a plurality ofly, movable rod (922) set up for cavity, movable rod (922) cup joint on dead lever (921), movable rod (922) and dead lever (921) can relative displacement, can relative displacement between movable rod (922), sign line (91) are connected with movable rod (922) and dead lever (921).

6. The device for testing the diffusion of a toxic substance under the action of an explosion according to claim 5, wherein: the utility model discloses a movable rod (922) is characterized in that activity pole (922) both ends are provided with respectively and receive and restraint mouth (9221) and extension mouth (9222), it is less than the average internal diameter of this activity pole (922) to receive and restraint mouth (9221) department internal diameter, extension mouth (9222) department external diameter is greater than the average external diameter of this activity pole (922).

7. The device for testing the diffusion of a toxic substance under the action of an explosion according to claim 6, wherein: the dead lever (921) both ends are provided with extension mouth (9222) respectively, and extension mouth (9222) department external diameter is greater than the average external diameter of dead lever (921), extension mouth (9222) on dead lever (921) cooperatees and looks butt rather than the receipts of the movable rod (922) that are connected mouthful (9221).

8. The device for testing the diffusion of a toxic substance under the action of an explosion according to claim 7, wherein: still be provided with spacing lug (923) on dead lever (921) and movable rod (922), spacing lug (923) set up on the inner wall and the outer wall of dead lever (921) outer wall and movable rod (922), spacing lug (923) are used for restricting the relative movement between dead lever (921) and movable rod (922) or movable rod (922), make the position relation between dead lever (921) and movable rod (922) or movable rod (922) fixed.

9. The apparatus for testing the diffusion of a toxic substance under the action of an explosion according to claim 8, wherein: spacing lug (923) include spacing arris (9231) and spacing groove (9232), spacing arris (9231) and spacing groove (9232) cooperate, promptly spacing arris (9231) can pass through spacing groove (9232).

10. A device for testing the spread of a toxic substance upon the action of an explosion according to any one of claims 1 to 9, wherein: the control device is characterized in that a control assembly (7) is arranged in the control area (3), the control assembly (7) is used for controlling the high-speed camera (6) to shoot and the test object (5) to explode, the control assembly (7) further comprises a wind direction anemoscope, the wind direction anemoscope is connected with a terminal controller, and the terminal controller can display wind direction and wind speed data measured by the wind direction anemoscope.

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