CN108801117B - Depth scale for single explosive package test and stacking test - Google Patents
Depth scale for single explosive package test and stacking test Download PDFInfo
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- CN108801117B CN108801117B CN201810856986.0A CN201810856986A CN108801117B CN 108801117 B CN108801117 B CN 108801117B CN 201810856986 A CN201810856986 A CN 201810856986A CN 108801117 B CN108801117 B CN 108801117B
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 239000002360 explosive Substances 0.000 title claims abstract description 24
- 239000004576 sand Substances 0.000 abstract description 46
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 description 27
- 238000007789 sealing Methods 0.000 description 18
- 238000012795 verification Methods 0.000 description 13
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 238000000605 extraction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005474 detonation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/18—Measuring arrangements characterised by the use of mechanical techniques for measuring depth
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a depth scale for an explosive single package test and a stacking test, and belongs to the technical field of explosive test equipment. The invention relates to a depth scale for single pack test and stacking test of explosives, which comprises a bracket, a measuring scale and a swinging rod; a cylinder is arranged in the middle of the bracket, and the measuring ruler passes through the cylinder; a round hole is formed in the upper part of the measuring ruler, and the swinging rod penetrates through the round hole; the measuring ruler is provided with a clamping groove, and the clamping groove is provided with a laser flashlight. The invention can provide measurement of the scattering sand depth for single pack test and stacking test of the explosive in the united nations, which are sealed by scattering sand, in the underground shallow surface, and can effectively ensure the accurate implementation of the test.
Description
Technical Field
The invention belongs to the technical field of explosive test equipment, and particularly relates to a depth scale for an explosive single package test and a stacking test.
Background
Section 16.4 and section 16.5 of the first part of the united nations protocol test and standards manual for the transportation of dangerous goods respectively define a single package test for classifying explosives [ test 6 (a) ]]And Stacking test [ test 6 (b)]Is a method of (2). A single pack test is used to determine if there is an overall explosion of the explosive, and a stacking test is used to determine if an explosion propagates from one pack to another or from one unpackaged item to another. The two test methods are similar in requirements and require the package to be closed, and are specifically performed by placing the package on a steel verification plate on the ground, and the best closing method is to use the shape and the size of the packageSimilar containers are filled with soil or sand and placed as tightly around the pack as possible, with minimum closure thickness in each direction, for not more than 0.15m 3 Is 0.5m for a pack of more than 0.15m 3 Is 1.0m. Other closing methods are to use boxes or bags filled with earth or sand around and on top of the pack, or to use loose sand.
Initiating the substance or article in the pack and making the following observations: thermal effects, sparging effects, detonation, deflagration or evidence of explosion of the entire contents of the capsule. After initiation, the test should be carried out three times, except for the decisive results (e.g. the explosion of the entire content) which occur earlier, following a safety waiting time prescribed by the test institution. If the recommended number of trials does not yield a result that can be interpreted explicitly, the number of trials should be increased.
The single pack test [ test 6 (a) ] is evaluated by-if the appearance of a sign of an overall explosion indicates that the product can be considered for 1.1 item, such signs include (a) the appearance of a pit at the test site; (b) failure of the verification plate under the package; (c) measuring a shock wave; and (d) the bulk sand closure material splits and spreads. If the product is listed in item 1.1, no further tests are required; otherwise, the test of type 6 (b) should be performed.
The stacking test [ test 6 (b) ] evaluates the result in that-the contents of more than one pack or unpackaged article virtually instantaneously explode, then the product should be scored 1.1. Signs of this occurrence include: (a) One pit occurring at the test site is much larger than that occurring in single pack or unpackaged item tests; (b) The level of damage to the verification plate under the package is much greater than that caused in a single package or unpackaged item test; (c) The shock wave is measured to be much more than that measured in a single pack or unpackaged item test; and (d) the bulk sand seal material disintegrates and spreads significantly. Otherwise, the test of type 6 (c) is followed.
In the underground shallow test using the loose sand for sealing, a ruler is usually inserted into the loose sand or a marked round stick is used for measuring the depth of the sealed loose sand, and the measuring modes not only can cause measuring errors due to the fact that the vertical measuring mode is not kept, but also can damage the sealing effect on collapse of an inserted position, and often the measuring mode is only one-point measuring mode, and cannot measure the whole sealing surface.
Disclosure of Invention
The invention aims to solve the technical problem of providing a depth scale for an explosive single package test and a stacking test, which is used for meeting the operation requirement of carrying out the single package test and the stacking test on the explosive in a proposal test and a standard manual of dangerous goods transportation in the united nations and ensuring the accuracy of the sealing depth of the single package test and the stacking test.
The invention solves the technical problems with the following technical proposal:
a depth scale for single pack test and stacking test of explosives comprises a bracket, a measuring scale and a swinging rod; a cylinder is arranged in the middle of the bracket, and the measuring ruler passes through the cylinder; a round hole is formed in the upper part of the measuring ruler, and the swinging rod penetrates through the round hole; the measuring ruler is provided with a fixed clamping groove or a sliding clamping groove, and the fixed clamping groove or the sliding clamping groove is provided with a laser flashlight.
As a further development of the solution, the clamping grooves are provided at 0.5m and 1.0m from the bottom of the blade. But the height of the clamping groove can be adjusted to reach the required height according to the requirement.
As a further improvement of the technical scheme, the measuring ruler is of a hollow structure. The measuring ruler is of a hollow structure, so that the weight of the ruler body can be reduced, the ruler is convenient to carry, meanwhile, the sliding clamping groove is convenient to set, the ruler body is filled with sand scattering materials, and after measurement is completed, the measuring ruler is pulled out to enable damage to an integral sealing plane to be minimum.
As a further improvement of the technical scheme, the top of the measuring ruler is provided with a funnel. The funnel is used to pour the bulk sand material into the interior of the blade from the top of the blade.
As a further improvement of the technical scheme, a leak hole is arranged on the ruler body of the measuring ruler. The arrangement of the weeping holes further lightens the weight of the ruler body and simultaneously ensures that the sand scattering material is better filled in the ruler body.
As a further improvement of the technical scheme, one or more than one leak holes are arranged and uniformly distributed on the ruler body. The leak hole sets up a plurality of more even that can make the scattered sand fill, and weight is lighter to the design of leak hole is reasonable, can not influence the structural strength of dipperstick.
As a further improvement of the technical scheme, a rotatable round table is arranged at the bottom of the measuring ruler. The round platform can make the dipperstick convenient rotation, reduces the frictional force of measurement rotation in-process, is favorable to measuring more.
As a further improvement of the technical scheme, the support is of a raised cross-shaped structure, and each support leg of the support can rotate around the cylinder to fold. The bracket is arranged into a raised cross-shaped structure, so that enough space is reserved below the bracket, the filling of scattered sand is convenient, meanwhile, observation is more convenient, the filling condition of the scattered sand is known, and the cross-shaped structure can play a better stabilizing role; the support can rotate around the cylinder to fold, so that occupied space is reduced when the support is not used, and the support is convenient to carry.
As a further improvement of the technical scheme, the tail ends of the supporting legs of the bracket are provided with foot supports, and one foot support is fixed through a hinge. Set up the heel brace and make the support better fix, one of them heel brace is fixed through the hinge simultaneously, can make the support hinge upset after using to accomplish for the convenient taking out and the dismantlement of support.
As a further improvement of the technical scheme, a right-angle card is arranged below the foot support, and the right-angle card is arranged at the end part of the supporting leg. The right-angle card makes the better fixing of support on each apex angle in square test hole, plays better fixed action.
The invention has the following beneficial effects:
1. the invention can provide measurement of the scattering sand depth for single pack test and stacking test of the explosive in the united nations, which are sealed by scattering sand, in the underground shallow surface, and can effectively ensure the accurate implementation of the test.
2. The bracket can be turned out of a test area through the rotary hinge after measurement is completed, is convenient and quick, and does not need to be moved in a laborious and integral manner.
3. The measuring ruler adopts a hollow structure, the inside of the measuring ruler can be filled with a sand scattering sealing material through a funnel at the top of the measuring ruler and leakage holes distributed on the whole body, and the damage to the whole sealing plane can be minimized by pulling out the measuring ruler after the measurement is completed; meanwhile, the weight of the measuring ruler can be reduced, and the measuring ruler is convenient to carry.
4. The laser flashlight is arranged on the measuring ruler, the swinging rod of the measuring ruler can be rotated, and the laser flashlight is matched with the round table with the rotatable low end to enable the linear laser to rotate within 360 degrees, so that the leveling condition of the whole sealing plane can be observed.
5. The sliding clamping groove is arranged on the measuring ruler, so that the vertical position of the laser flashlight can be adjusted, and the measuring ruler can adapt to the leveling conditions of sealing planes with different heights.
The support can be folded to reduce occupied space when not in use, and is convenient to carry and store.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of a first measuring scale according to the present invention.
FIG. 3 is a schematic view of a second measuring scale according to the present invention.
Fig. 4 is a schematic view of a stent of the present invention.
FIG. 5 is a schematic diagram of an implementation of the present invention.
Reference numerals: 1 bracket, 11 cylinder, 12 foot support, 13 hinge, 14 support leg, 15 right angle card, 2 measuring ruler, 21 round hole, 22 clamping groove, 23 funnel, 24 leak hole, 25 round platform, 26 sliding clamping groove, 3 swing rod, 4 laser torch, 5 explosion pit.
Detailed Description
The present invention will be further illustrated by the accompanying drawings and specific examples to provide a better understanding of the advantages and features of the invention, and it should be understood that the following examples are merely preferred versions of the invention and are not limiting of the invention.
Example 1
A depth scale (shown in figures 1, 2 and 5) for single pack test and stacking test of explosives, which comprises a bracket 1, a measuring scale 2 and a swinging rod 3; a cylinder 11 is arranged in the middle of the bracket 1, and the measuring ruler 2 passes through the cylinder 11; a round hole 21 is formed in the upper part of the measuring ruler 2, and the swinging rod 3 passes through the round hole 21; a fixed clamping groove 22 is arranged on the measuring ruler 2, and a laser torch 4 is arranged on the fixed clamping groove 22.
The measuring scale 2 is of a hollow structure. The top of the measuring scale 2 is provided with a funnel 23. The measuring scale 2 is provided with a weep hole 24 on the scale body. The leakage holes 24 are provided with one or more than one and are uniformly distributed on the ruler body. The bottom of the measuring scale 2 is provided with a rotatable circular table 25. The support 1 has a raised cross-shaped structure, and each leg of the support 1 can rotate around the cylinder 11 to fold. The ends of the individual legs 14 of the support 1 are provided with braces 12, one of which braces 12 is secured by means of a hinge 13. A right angle card 15 is arranged below the foot support 12, and the right angle card 15 is arranged at the end of the foot 14.
The specific embodiment is as follows: the following description of the invention applied to a single package test of a display shell is as follows:
1. a verification steel plate with the thickness of 2m multiplied by 2m is paved at the bottom of the explosion pit 5, a display shell sample is placed in the center of the steel plate, and the display shell is connected with an electronic igniter.
2. The hinge 13 on the bracket 1 is fixed at one corner of the explosion pit 5, and the bracket 1 is turned over to enable the four corners of the bracket 1 to coincide with the four corners of the explosion pit 5.
3. The measuring scale 2 is inserted from the cylinder 11 on the bracket 1, so that the bottom of the movable round platform 25 on the measuring scale 2 contacts the top of the display shell package.
4. Gradually filling the whole pit body with the scattered sand until the position, which is 0.5m away from the measuring scale 2, is below the clamping groove 22, and adding the scattered sand from the funnel 23 above the measuring scale 2 to enable the scattered sand inside the measuring scale 2 to reach the position, which is 0.5m away from the clamping groove 22.
5. The laser torch 4 capable of emitting the linear laser is inserted into the clamping groove 22 at 0.5m at the bottom of the distance measuring ruler 2, and the horizontal adjustment is performed and the laser torch is fixed.
6. The sand is continuously filled from the edge of the pit to the center, and an operator can rotate the swinging rod 3 at the pit mouth at the same time, so that the linear laser moves 360 degrees, and the condition of each part of the sealing plane is checked until the sealing plane is higher than the linear laser.
7. The double person grabs the swinging rod 3 to lift the measuring scale 2, and the measuring scale 2 is lifted vertically upwards after the laser flashlight 4 is pulled out.
8. The bracket 1 is turned 180 degrees along the closing direction of the hinge 13, and the upper part of the opening of the explosion pit 5 is not shielded.
9. Filling a small amount of scattered sand to the extraction position of the closed plane center measuring ruler 2.
10. Igniting the display shell through electronic ignition, and recording the phenomenon.
11. After the test is finished, all scattered sand in the explosion pit is dug out, the damage condition of the pit bottom and the verification plate is observed, and the next test is prepared.
Example 2
A depth scale (shown in figures 3 and 4) for single pack test and stacking test of explosives, which comprises a bracket 1, a measuring scale 2 and a swinging rod 3; a cylinder 11 is arranged in the middle of the bracket 1, and the measuring ruler 2 passes through the cylinder 11; a round hole 21 is formed in the upper part of the measuring ruler 2, and the swinging rod 3 passes through the round hole 21; a sliding clamping groove 26 is arranged on the measuring ruler 2, and the laser torch 4 is arranged on the sliding clamping groove 26. The measuring scale 2 is of a hollow structure. The top of the measuring scale 2 is provided with a funnel 23. The measuring scale 2 is provided with a weep hole 24 on the scale body. The leakage holes 24 are provided with one or more than one and are uniformly distributed on the ruler body. The bottom of the measuring scale 2 is provided with a rotatable circular table 25. The support 1 has a raised cross-shaped structure, and each leg of the support 1 can rotate around the cylinder 11 to fold. The ends of the individual legs 14 of the support 1 are provided with braces 12, one of which braces 12 is secured by means of a hinge 13. A right angle card 15 is arranged below the foot support 12, and the right angle card 15 is arranged at the end of the foot 14.
The specific embodiment is as follows: the following description of the invention applied to a single package test of a display shell is as follows:
1. a verification steel plate with the thickness of 2m multiplied by 2m is paved at the bottom of the explosion pit 5, a display shell sample is placed in the center of the steel plate, and the display shell is connected with an electronic igniter.
2. The hinge 13 on the bracket 1 is fixed at one corner of the explosion pit 5, and the bracket 1 is turned over to enable the four corners of the bracket 1 to coincide with the four corners of the explosion pit 5.
3. The measuring scale 2 is inserted from the cylinder 11 on the bracket 1, so that the bottom of the movable round platform 25 on the measuring scale 2 contacts the top of the display shell package.
4. Gradually filling the whole pit body with the scattered sand until the position 0.75m below the upper part of the measuring scale 2, and adding the scattered sand into the funnel 23 above the measuring scale 2 to enable the scattered sand inside the measuring scale 2 to reach the position 0.75m below.
5. The laser flashlight 4 capable of emitting the linear laser is inserted into the sliding clamping groove 26 with the distance of 0.75m at the bottom of the measuring ruler 2, the height is adjusted, and the level is adjusted and fixed.
6. The sand is continuously filled from the edge of the pit to the center, and an operator can rotate the swinging rod 3 at the pit mouth at the same time, so that the linear laser moves 360 degrees, and the condition of each part of the sealing plane is checked until the sealing plane is higher than the linear laser.
7. The double person grabs the swinging rod 3 to lift the measuring scale 2, and the measuring scale 2 is lifted vertically upwards after the laser flashlight 4 is pulled out.
8. The bracket 1 is turned 180 degrees along the closing direction of the hinge 13, and the upper part of the opening of the explosion pit 5 is not shielded.
9. Filling a small amount of scattered sand to the extraction position of the closed plane center measuring ruler 2.
10. Igniting the display shell through electronic ignition, and recording the phenomenon.
11. After the test is finished, all scattered sand in the explosion pit is dug out, the damage condition of the pit bottom and the verification plate is observed, and the next test is prepared.
Example 3
A depth scale for single pack test and stacking test of explosives comprises a bracket 1, a measuring scale 2 and a swinging rod 3; a cylinder 11 is arranged in the middle of the bracket 1, and the measuring ruler 2 passes through the cylinder 11; a round hole 21 is formed in the upper part of the measuring ruler 2, and the swinging rod 3 passes through the round hole 21; a fixed clamping groove 22 is arranged on the measuring ruler 2, and a laser torch 4 is arranged on the fixed clamping groove 22. The measuring scale 2 is of a hollow structure. The measuring scale 2 is provided with a weep hole 24 on the scale body. The bottom of the measuring scale 2 is provided with a rotatable circular table 25. The support 1 has a raised cross-shaped structure, and each leg of the support 1 can rotate around the cylinder 11 to fold.
The specific embodiment is as follows: the following description of the invention applied to a single package test of a display shell is as follows:
1. a verification steel plate with the thickness of 2m multiplied by 2m is paved at the bottom of the explosion pit 5, a display shell sample is placed in the center of the steel plate, and the display shell is connected with an electronic igniter.
2. The four corners of the support 1 are coincident with the four corners of the detonation pit 5.
3. The measuring scale 2 is inserted from the cylinder 11 on the bracket 1, so that the bottom of the movable round platform 25 on the measuring scale 2 contacts the top of the display shell package.
4. Gradually filling the whole pit body with the scattered sand until the position, which is 0.5m away from the measuring scale 2, is below the clamping groove 22, and adding the scattered sand from the funnel 23 above the measuring scale 2 to enable the scattered sand inside the measuring scale 2 to reach the position, which is 0.5m away from the clamping groove 22.
5. The laser torch 4 capable of emitting the linear laser is inserted into the clamping groove 22 at 0.5m at the bottom of the distance measuring ruler 2, and the horizontal adjustment is performed and the laser torch is fixed.
6. The sand is continuously filled from the edge of the pit to the center, and an operator can rotate the swinging rod 3 at the pit mouth at the same time, so that the linear laser moves 360 degrees, and the condition of each part of the sealing plane is checked until the sealing plane is higher than the linear laser.
7. The double person grabs the swinging rod 3 to lift the measuring scale 2, and the measuring scale 2 is lifted vertically upwards after the laser flashlight 4 is pulled out.
8. The bracket 1 is taken out, and no shielding exists above the explosion pit 5.
9. Filling a small amount of scattered sand to the extraction position of the closed plane center measuring ruler 2.
10. Igniting the display shell through electronic ignition, and recording the phenomenon.
11. After the test is finished, all scattered sand in the explosion pit is dug out, the damage condition of the pit bottom and the verification plate is observed, and the next test is prepared.
Example 4
A depth scale for single pack test and stacking test of explosives comprises a bracket 1, a measuring scale 2 and a swinging rod 3; a cylinder 11 is arranged in the middle of the bracket 1, and the measuring ruler 2 passes through the cylinder 11; a round hole 21 is formed in the upper part of the measuring ruler 2, and the swinging rod 3 passes through the round hole 21; a sliding clamping groove 26 is arranged on the measuring ruler 2, and the laser torch 4 is arranged on the sliding clamping groove 26. The measuring scale 2 is of a hollow structure. The measuring scale 2 is provided with a weep hole 24 on the scale body. The leakage holes 24 are provided with one or more than one and are uniformly distributed on the ruler body. The ends of the individual legs 14 of the support 1 are provided with braces 12, one of which braces 12 is secured by means of a hinge 13. A right angle card 15 is arranged below the foot support 12, and the right angle card 15 is arranged at the end of the foot 14.
The specific embodiment is as follows: the following description of the invention applied to a single package test of a display shell is as follows:
1. a verification steel plate with the thickness of 2m multiplied by 2m is paved at the bottom of the explosion pit 5, a display shell sample is placed in the center of the steel plate, and the display shell is connected with an electronic igniter.
2. The hinge 13 on the bracket 1 is fixed at one corner of the explosion pit 5, and the bracket 1 is turned over to enable the four corners of the bracket 1 to coincide with the four corners of the explosion pit 5.
3. The measuring scale 2 is inserted from the cylinder 11 on the stand 1 such that the bottom on the measuring scale 2 contacts the top of the display shell package.
4. Gradually filling the whole pit body with the scattered sand until the position of the pit body is 0.5m below the upper part of the measuring scale 2, and enabling the scattered sand in the measuring scale 2 to reach the position of the pit body of 0.5m below through the leak hole.
5. The laser torch 4 capable of emitting the linear laser is inserted into the sliding clamping groove 26 with the distance of 0.5m at the bottom of the measuring ruler 2, and the height is set, adjusted horizontally and fixed.
6. The sand is continuously filled from the edge of the pit to the center, and an operator can rotate the swinging rod 3 at the pit mouth at the same time, so that the linear laser moves 360 degrees, and the condition of each part of the sealing plane is checked until the sealing plane is higher than the linear laser.
7. The double person grabs the swinging rod 3 to lift the measuring scale 2, and the measuring scale 2 is lifted vertically upwards after the laser flashlight 4 is pulled out.
8. The bracket 1 is turned 180 degrees along the closing direction of the hinge 13, and the upper part of the opening of the explosion pit 5 is not shielded.
9. Filling a small amount of scattered sand to the extraction position of the closed plane center measuring ruler 2.
10. Igniting the display shell through electronic ignition, and recording the phenomenon.
11. After the test is finished, all scattered sand in the explosion pit is dug out, the damage condition of the pit bottom and the verification plate is observed, and the next test is prepared.
Example 5
A depth scale for single pack test and stacking test of explosives comprises a bracket 1, a measuring scale 2 and a swinging rod 3; a cylinder 11 is arranged in the middle of the bracket 1, and the measuring ruler 2 passes through the cylinder 11; a round hole 21 is formed in the upper part of the measuring ruler 2, and the swinging rod 3 passes through the round hole 21; a fixed clamping groove 22 is arranged on the measuring ruler 2, and a laser torch 4 is arranged on the fixed clamping groove 22. The specific embodiment is as follows: the following description of the invention applied to a single package test of a display shell is as follows:
1. a verification steel plate with the thickness of 2m multiplied by 2m is paved at the bottom of the explosion pit 5, a display shell sample is placed in the center of the steel plate, and the display shell is connected with an electronic igniter.
2. The four corners of the support 1 are coincident with the four corners of the detonation pit 5.
3. The measuring scale 2 is inserted from the cylinder 11 on the stand 1 so that the bottom of the measuring scale 2 contacts the top of the display shell package.
4. The whole pit is gradually filled with the scattered sand until the position 1.0m away from the measuring scale 2 is below the clamping groove 22.
5. The laser torch 4 capable of emitting the linear laser is inserted into the clamping groove 22 of 1.0m at the bottom of the distance measuring scale 2, and the level is adjusted and fixed.
6. The sand is continuously filled from the edge of the pit to the center, and an operator can rotate the swinging rod 3 at the pit mouth at the same time, so that the linear laser moves 360 degrees, and the condition of each part of the sealing plane is checked until the sealing plane is higher than the linear laser.
7. The double person grabs the swinging rod 3 to lift the measuring scale 2, and the measuring scale 2 is lifted vertically upwards after the laser flashlight 4 is pulled out.
8. The bracket 1 is taken out, and no shielding exists above the explosion pit 5.
9. Filling a small amount of scattered sand to the extraction position of the closed plane center measuring ruler 2.
10. Igniting the display shell through electronic ignition, and recording the phenomenon.
11. After the test is finished, all scattered sand in the explosion pit is dug out, the damage condition of the pit bottom and the verification plate is observed, and the next test is prepared.
Claims (5)
1. A depth scale for single pack testing and stacking testing of explosives, characterized in that: comprises a bracket (1), a measuring ruler (2) and a swinging rod (3); a cylinder (11) is arranged in the middle of the bracket (1), and the measuring ruler (2) passes through the cylinder (11); a round hole (21) is formed in the upper part of the measuring ruler (2), and the swinging rod (3) passes through the round hole (21); a fixed clamping groove (22) or a sliding clamping groove (26) is formed in the measuring ruler (2), and a laser flashlight (4) is arranged on the fixed clamping groove (22) or the sliding clamping groove (26);
the measuring ruler (2) is of a hollow structure;
the top of the measuring ruler (2) is provided with a funnel (23);
a drain hole (24) is formed in the ruler body of the measuring ruler (2);
the leakage holes (24) are provided with one or more than one and are uniformly distributed on the ruler body.
2. A depth scale for single pack and stack testing of explosives in accordance with claim 1, characterized by: the bottom of the measuring ruler (2) is provided with a rotatable round table (25).
3. A depth scale for single pack and stack testing of explosives in accordance with claim 1, characterized by: the support (1) is of a protruding cross-shaped structure, and each support leg of the support (1) can rotate around the cylinder (11) to be folded.
4. A depth scale for single pack and stack testing of explosives in accordance with claim 1, characterized by: the tail ends of the supporting legs (14) of the support (1) are provided with the foot supports (12), and one foot support (12) is fixed through a hinge.
5. A depth scale for single pack and stack testing of explosives in accordance with claim 4, characterized by: the lower part of the foot support (12) is provided with a right-angle card (15), and the right-angle card (15) is arranged at the end part of the supporting leg (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856986.0A CN108801117B (en) | 2018-07-31 | 2018-07-31 | Depth scale for single explosive package test and stacking test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810856986.0A CN108801117B (en) | 2018-07-31 | 2018-07-31 | Depth scale for single explosive package test and stacking test |
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| Publication Number | Publication Date |
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| CN108801117A CN108801117A (en) | 2018-11-13 |
| CN108801117B true CN108801117B (en) | 2024-02-23 |
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