Bursting test box

Abstract

The utility model discloses a blasting test box, which relates to the technical field of blasting and comprises a box body, a test space is defined by the box body, a first adjusting part is arranged on the top wall of the test space, and a plurality of second adjusting parts are arranged on the side wall of the test space; the top pressurizing plate is arranged in the test space and connected with the first adjusting piece, and the first adjusting piece is used for driving the top pressurizing plate to move in the height direction of the blasting test box; the plurality of side surface pressurizing plates are arranged in the test space and are respectively connected with the plurality of second adjusting pieces; the second adjusting pieces are used for driving the corresponding side surface pressurizing plates to move along the direction vertical to the height direction of the blasting test box. Therefore, the test space is defined by the box body, fragments and airflow generated during blasting can be effectively blocked, the risk of damage to the surroundings caused by the test is reduced, the confining pressure blasting condition under a certain vertical depth can be simulated by adjusting the positions of the top pressurizing plate and the multiple side face pressurizing plates, and the precision of the test result can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting, in particular to a blasting test box. Background Art

[0002] Engineering blasting is characterized by high risk, high cost, and high energy consumption. For many blasting-related studies, such as the quantitative evaluation of rock blasting damage and the influence of charge structure on blasting effectiveness, field tests are easily restricted by construction progress, test costs, safety issues, and other factors, making them difficult to conduct. Therefore, indoor testing is currently the more popular testing method. However, indoor testing has boundary constraint issues. The fragments and airflow generated during blasting cannot be effectively blocked, which can easily cause damage to the surrounding area. In addition, current indoor tests cannot simulate the confined pressure blasting conditions at a certain vertical depth, affecting the accuracy of the test results. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a blasting test chamber that can effectively block debris and airflow generated during blasting and can simulate confined pressure blasting conditions at a certain vertical depth.

[0004] According to the utility model, the blasting test box includes: a box body, which defines a test space, the top wall of the test space is provided with a first adjusting member, and the side walls of the test space are provided with multiple second adjusting members; a top pressure plate, the top pressure plate is arranged in the test space and is connected to the first adjusting member, the first adjusting member is used to drive the top pressure plate to move along the height direction of the blasting test box; multiple side pressure plates, the multiple side pressure plates are arranged in the test space and are respectively connected to the multiple second adjusting members, the multiple side pressure plates are arranged circumferentially along the test space, at least two of the multiple side pressure plates are arranged opposite to each other, and the second adjusting member is used to drive the corresponding side pressure plates to move in a direction perpendicular to the height direction of the blasting test box.

[0005] According to the blasting test box of the present invention, by defining the test space by the box body, it is possible to effectively block the fragments and airflow generated during the blasting, so as to reduce the risk of damage to the surroundings caused by the test. In addition, by adjusting the positions of the top pressure plate and multiple side pressure plates, it is possible to simulate the confined pressure blasting conditions at a certain vertical depth, which is conducive to improving the accuracy of the test results.

[0006] In some examples of the present invention, a buffer pad is fixed on the surface of the top pressure plate facing away from the top wall and / or the surface of the side pressure plate facing away from the side wall.

[0007] In some examples of the present invention, the side pressure plate is a flat plate structure or an arc-shaped structure.

[0008] In some examples of the present invention, a first threaded hole is formed on the top wall of the test space, the first threaded hole is connected to the test space, the first adjusting member is a threaded rod, the first adjusting member is passed through the first threaded hole, and the inner end of the first adjusting member is fixedly connected to the top pressure plate.

[0009] In some examples of the present invention, a second threaded hole is formed on the side wall of the test space, the second threaded hole is connected to the test space, the second adjusting member is a threaded rod, the second adjusting member is passed through the second threaded hole, and the inner end of the second adjusting member is fixedly connected to the side pressure plate.

[0010] In some examples of the present invention, the box body is formed with a through hole communicating with the test space, and the through hole is used to accommodate the detonating wire.

[0011] In some examples of the present invention, a through hole is formed on the top wall of the test space.

[0012] In some examples of the present invention, the blasting test box further includes: a clamping structure, which is arranged in the test space and located on the side of the top pressure plate away from the top wall of the test space, and is used to fix the test piece.

[0013] In some examples of the present invention, the clamping structure includes: two clamping parts, which are opposite and spaced apart in a direction perpendicular to the height direction of the burst test box, and at least one of the two clamping parts is movable in a direction perpendicular to the height direction of the burst test box.

[0014] In some examples of the present invention, a plurality of third adjusting members are provided on the side wall of the test space, and the plurality of third adjusting members are respectively connected to corresponding clamping members, and the third adjusting members are used to drive the corresponding clamping members to move.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a blasting test box according to an embodiment of the present invention:

[0018] Figure 2 This is a schematic diagram of the explosion of a partial structure of the explosion test box according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of a side pressure plate having a flat plate structure according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a side pressure plate having an arc-shaped structure according to an embodiment of the present utility model;

[0021] Figure 5 is a schematic diagram of the clamping structure according to an embodiment of the present utility model;

[0022] Figure 6 This is another schematic diagram of the clamping structure according to an embodiment of the present utility model.

[0023] Reference numerals:

[0024] Explosion test chamber 100;

[0025] Box 10; first body 101; second body 102; top plate 103; connecting flange 104; test space 11; fastener 12; first threaded hole 13; second threaded hole 14; through hole 15; third threaded hole 16; sealing gasket 17; top wall 18; side wall 19;

[0026] First adjusting member 21; first rotating handle 211; top pressure plate 22; second adjusting member 23; second rotating handle 231; side pressure plate 24; cushion 25; third adjusting member 26;

[0027] Card-mounting structure 30; Card-connecting member 31. DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] Reference below Figures 1-6 A burst test chamber 100 according to an embodiment of the present invention is described.

[0030] like Figures 1-6 As shown, the explosion test box 100 according to the embodiment of the present invention includes: a box body 10 , a top pressure plate 22 and a plurality of side pressure plates 24 .

[0031] The box body 10 defines a test space 11, the top wall 18 of the test space 11 is provided with a first adjusting member 21, and the side wall 19 of the test space 11 is provided with multiple second adjusting members 23; the top pressure plate 22 is arranged in the test space 11 and is connected to the first adjusting member 21, and the first adjusting member 21 is used to drive the top pressure plate 22 to move along the height direction of the bursting test box 100; multiple side pressure plates 24 are arranged in the test space 11 and are respectively connected to the multiple second adjusting members 23, and the multiple side pressure plates 24 are arranged circumferentially along the test space 11, and at least two of the multiple side pressure plates 24 are arranged opposite to each other, and the second adjusting member 23 is used to drive the corresponding side pressure plates 24 to move in a direction perpendicular to the height direction of the bursting test box 100.

[0032] Among them, the box body 10 defines a test space 11, and the test space 11 is used to place the test piece. As some embodiments of the present application, the box body 10 may include: a first body 101, a second body 102 and a top plate 103. The first body 101 and the second body 102 are detachably connected. The first body 101 and the second body 102 can jointly define a space with both opposite ends open. The top plate 103 is detachably connected to the first body 101 and the second body 102, and the top plate 103 can block one of the open ends of the space, and the other open end of the space can be blocked by the clamping structure 30. Of course, the other open end of the space can be left unblocked, and the box body 10 can be directly placed on the test piece.

[0033] In some embodiments of the present application, the side edge of the first body 101 has a connecting flange 104, and the side edge of the second body 102 has a connecting flange 104. The connecting flange 104 of the second body 102 corresponds one-to-one to the connecting flange 104 of the first body 101. The connecting flange 104 of the first body 101 and the connecting flange 104 of the second body 102 can be detachably fixedly connected by a fastener 12, so that the first body 101 and the second body 102 can be detachably connected. The fastener 12 can be a bolt, a screw and a nut, or other components that can detachably connect the corresponding two connecting flanges 104. A sealing gasket 17 can be provided between the two corresponding fixedly connected connecting flanges 104 to improve the sealing performance of the box 10.

[0034] The top plate 103 and the first body 101 as well as the top plate 103 and the second body 102 can be detachably fixedly connected by fasteners 12 , and a sealing gasket 17 can be provided between the top plate 103 and the first body 101 as well as between the top plate 103 and the second body 102 to improve the sealing performance of the box body 10 .

[0035] When the explosives are detonated, the box 10 can effectively block the debris and airflow generated during the blasting, reducing the risk of damage to surrounding objects and personnel caused by the debris and airflow generated during the blasting, so that the blasting test box 100 has an excellent boundary constraint effect.

[0036] The top wall 18 of the test space 11 is provided with a first adjusting member 21, and the top wall 18 can be the top plate 103 described above. The side wall 19 of the test space 11 is provided with multiple second adjusting members 23, and the side wall 19 can be the first body 101 and the second body 102 described above. The top pressure plate 22 is arranged in the test space 11, and the top pressure plate 22 is connected to the first adjusting member 21. The first adjusting member 21 is used to drive the top pressure plate 22 to move along the height direction of the blasting test box 100 to change the position of the top pressure plate 22 to apply an upper load to the specimen.

[0037] The number of side pressure plates 24 is the same as the number of second adjusting members 23 and corresponds one to one. Multiple side pressure plates 24 are all arranged in the test space 11, and multiple side pressure plates 24 are respectively connected one to one with multiple second adjusting members 23. Multiple side pressure plates 24 are arranged circumferentially along the test space 11, and at least two side pressure plates 24 among the multiple side pressure plates 24 are arranged opposite to each other. For example, there are two side pressure plates 24, and the two side pressure plates 24 are arranged circumferentially along the test space 11 and opposite to each other. Alternatively, there are three side pressure plates 24, and the three side pressure plates 24 are arranged circumferentially along the test space 11, and two of the side pressure plates 24 are opposite to each other. Alternatively, there are four side pressure plates 24, and the four side pressure plates 24 are arranged circumferentially along the test space 11, and two of the side pressure plates 24 are opposite to each other, and the other two side pressure plates 24 are opposite to each other.

[0038] The second adjusting member 23 is used to drive the corresponding side pressure plate 24 to move in a direction perpendicular to the height direction of the burst test box 100 to change the position of the corresponding side pressure plate 24 to apply a lateral load to the specimen. The height direction of the burst test box 100 is Figure 1 The Z direction shown is perpendicular to the height direction of the burst test box 100. Figure 1 By adjusting the positions of the top pressure plate 22 and the plurality of side pressure plates 24, a confined pressure blasting condition at a certain vertical depth can be simulated.

[0039] Specifically, by allowing the box body 10 to define a test space 11, when the explosives are detonated, the box body 10 can reduce the risk of damage to surrounding objects and personnel caused by fragments and airflow generated during the blasting, so that the blasting test box 100 has an excellent boundary constraint effect. In addition, by driving the top pressure plate 22 to move along the height direction of the blasting test box 100 through the first adjustment member 21, the size of the upper load applied to the specimen can be adjusted. By driving the multiple side pressure plates 24 to move in a direction perpendicular to the height direction of the blasting test box 100 through multiple second adjustment members 23, the size of the lateral load applied to the specimen can be adjusted, thereby simulating the confining pressure blasting conditions at a certain vertical depth, so that the blasting test has higher accuracy.

[0040] Therefore, by defining the test space 11 by the box body 10, the fragments and airflow generated during the blasting can be effectively blocked to reduce the risk of damage to the surroundings caused by the test. Moreover, by adjusting the positions of the top pressure plate 22 and multiple side pressure plates 24, the confined pressure blasting conditions at a certain vertical depth can be simulated, which is conducive to improving the accuracy of the test results.

[0041] In some embodiments of the present invention, Figure 2 As shown, a buffer pad 25 is fixed to the surface of the top pressure plate 22 facing away from the top wall 18 and / or the surface of the side pressure plate 24 facing away from the side wall 19 .

[0042] Among them, a buffer pad 25 is fixedly provided on the surface of the top pressure plate 22 facing away from the top wall 18, or a plurality of side pressure plates 24 are fixedly provided with a buffer pad 25 on their surfaces facing away from the side wall 19, or a buffer pad 25 is fixedly provided on the surface of the top pressure plate 22 facing away from the top wall 18, and a plurality of side pressure plates 24 are fixedly provided with a buffer pad 25 on their surfaces facing away from the side wall 19. The buffer pad 25 can be, but is not limited to, a rubber pad, a resin pad, etc. By fixing the buffer pad 25 on the surface of the top pressure plate 22 facing away from the top wall 18, the wear between the top pressure plate 22 and the test piece can be reduced, and by fixing the buffer pad 25 on the surface of the side pressure plate 24 facing away from the side wall 19, the wear between the side pressure plate 24 and the test piece can be reduced, and the probability of punching when the explosive explodes can be reduced.

[0043] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the side pressure plate 24 is a flat plate structure or an arc-shaped structure.

[0044] Among them, if the side pressure plate 24 is a flat plate structure, the surface of the side pressure plate 24 facing away from the top wall 18 is a plane; if the side pressure plate 24 is an arc-shaped structure, the surface of the side pressure plate 24 facing away from the top wall 18 is an arc-shaped surface. The side pressure plate 24 with a flat plate structure or the side pressure plate 24 with an arc-shaped structure can be selected according to the outer contour of the specimen so that the side pressure plate 24 is adapted to the specimen to reliably apply lateral load to the specimen.

[0045] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, a first threaded hole 13 is formed on the top wall 18 of the test space 11, the first threaded hole 13 is connected to the test space 11, the first adjusting member 21 is a threaded rod, the first adjusting member 21 is passed through the first threaded hole 13, and the inner end of the first adjusting member 21 is fixedly connected to the top pressure plate 22.

[0046] Among them, the top wall 18 of the test space 11 is formed with a first threaded hole 13 connected to the test space 11, the first threaded hole 13 has an internal thread, the first adjusting member 21 is constructed as a threaded rod, the first adjusting member 21 has an external thread, the first adjusting member 21 is passed through the first threaded hole 13 and is threadedly engaged with the first threaded hole 13, the inner end of the first adjusting member 21 is fixedly connected to the top pressure plate 22, and the inner end of the first adjusting member 21 is the end of the first adjusting member 21 extending into the test space 11.

[0047] By screwing the first adjusting member 21, the length of the first adjusting member 21 extending into the test space 11 can be adjusted, thereby driving the top pressure plate 22 to move along the height direction of the blasting test box 100 to change the position of the top pressure plate 22, thereby facilitating the adjustment of the magnitude of the upper load applied by the top pressure plate 22 to the specimen, accurately simulating the confining pressure blasting conditions at a certain vertical depth, and improving the ease of use of the blasting test box 100.

[0048] In some embodiments of the present application, a first joint is fixedly disposed on the inner end of the first adjusting member 21, and a second joint is fixedly connected to the surface of the top pressure plate 22 facing the first adjusting member 21. The first joint and the second joint are rotatably connected, for example, by a ball bearing, allowing the first joint to rotate relative to the second joint. The coordination of the first and second joints can reduce the risk of the top pressure plate 22 rotating with the first adjusting member 21 during movement.

[0049] In some embodiments of the present invention, Figure 1 and Figure 2As shown, a second threaded hole 14 is formed on the side wall 19 of the test space 11, the second threaded hole 14 is connected to the test space 11, the second adjusting member 23 is a threaded rod, the second adjusting member 23 is passed through the second threaded hole 14, and the inner end of the second adjusting member 23 is fixedly connected to the side pressure plate 24.

[0050] Among them, the side wall 19 of the test space 11 is formed with a second threaded hole 14 connected to the test space 11. The number of the second threaded holes 14 is multiple and corresponds one to one with the multiple second adjusting parts 23. The multiple second threaded holes 14 all have internal threads, and the multiple second adjusting parts 23 are all constructed as threaded rods. The multiple second adjusting parts 23 all have external threads. The multiple second adjusting parts 23 are respectively passed through the corresponding second threaded holes 14 and threadedly engaged with the corresponding second threaded holes 14. The inner end of the second adjusting part 23 is fixedly connected to the corresponding side pressure plate 24. The inner end of the second adjusting part 23 is the end of the second adjusting part 23 extending into the test space 11.

[0051] By screwing the second adjusting member 23, the length of the second adjusting member 23 extending into the test space 11 can be adjusted, thereby driving the corresponding side pressure plate 24 to move in a direction perpendicular to the height direction of the blasting test box 100 to change the position of the corresponding side pressure plate 24, thereby facilitating the adjustment of the magnitude of the lateral load applied by the side pressure plate 24 to the specimen, accurately simulating the confining pressure blasting conditions at a certain vertical depth, and improving the ease of use of the blasting test box 100.

[0052] In some embodiments of the present application, a first joint is fixedly disposed at the inner end of the second adjusting member 23, and a second joint is fixedly connected to the surface of the side pressure plate 24 facing the second adjusting member 23. The first joint and the second joint are rotatably connected, for example, by a ball bearing, allowing the first joint to rotate relative to the second joint. The coordination of the first and second joints can reduce the risk of the side pressure plate 24 rotating with the second adjusting member 23 during movement.

[0053] In some embodiments of the present application, a first rotating handle 211 is provided at one end of the first adjusting member 21 away from the top pressure plate 22, and a second rotating handle 231 is provided at one end of the second adjusting member 23 away from the side pressure plate 23. This arrangement makes it easy to screw the first adjusting member 21 and the second adjusting member 23.

[0054] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the box body 10 is formed with a through hole 15 communicating with the test space 11 , and the through hole 15 is used to accommodate the detonating wire.

[0055] Among them, the box body 10 is formed with a through hole 15, which is connected to the test space 11. The through hole 15 is used to accommodate the detonating wire, that is, the detonating wire can pass through the through hole 15 to extend out of the test space 11. By forming the through hole 15 in the box body 10, the detonating wire can be led out of the test space 11, so that part of the structure of the detonating wire is located outside the box body 10, thereby facilitating the ignition of the detonating wire and reducing the difficulty of the test.

[0056] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the top wall 18 of the test space 11 is formed with a through hole 15 .

[0057] Among them, the top wall 18 of the test space 11 is formed with a through hole 15 that is connected to the test space 11. The detonating wire can pass through the through hole 15 to extend out of the test space 11. By forming the through hole 15 on the top wall 18 of the test space 11, the setting position of the through hole 15 can be reasonably set, and the detonating wire can be led out of the test space 11 from the top wall 18 of the test space 11, so that part of the structure of the detonating wire is located above the box body 10, which can facilitate the test personnel to find and ignite the detonating wire and reduce the difficulty of the test.

[0058] In some embodiments of the present invention, Figure 2 、 Figure 5 and Figure 6 As shown, the burst test box 100 further includes a clamping structure 30 , which is disposed in the test space 11 and located on the side of the top pressure plate 22 away from the top wall 18 of the test space 11 . The clamping structure 30 is used to fix the test piece.

[0059] The clipping structure 30 is located on the side of the top pressure plate 22 facing away from the top wall 18 of the test space 11. In some embodiments of the present application, the clipping structure 30 can serve as the bottom wall of the test space 11. The clipping structure 30 is connected to the box body 10. The clipping structure 30 is used to secure the test piece to securely fix the test piece within the test space 11. By providing the clipping structure 30, the test piece can be fixed, thereby reducing the probability of the test piece moving, so that the test piece is accurately positioned in the preset position, which is beneficial to improving the test accuracy and the reliability of the explosion test box 100.

[0060] In some embodiments of the present invention, Figure 2 、 Figure 5 and Figure 6 As shown, the clamping structure 30 includes two clamping members 31 , which are opposite and spaced apart in a direction perpendicular to the height direction of the burst test box 100 , and at least one of the two clamping members 31 is movable in a direction perpendicular to the height direction of the burst test box 100 .

[0061] Among them, the two clamping members 31 are arranged relative to each other in a direction perpendicular to the height direction of the bursting test box 100, and the two clamping members 31 are spaced apart in a direction perpendicular to the height direction of the bursting test box 100. At least one of the two clamping members 31 is movable in a direction perpendicular to the height direction of the bursting test box 100 to fix the test piece. For example, one of the two clamping members 31 is moved away from or closer to the other clamping member 31 in a direction perpendicular to the height direction of the bursting test box 100 to adjust the distance between the two clamping members 31 to clamp the test piece, thereby fixing the test piece. Alternatively, both of the two clamping members 31 can be moved relatively away from or relatively close to each other in a direction perpendicular to the height direction of the bursting test box 100 to adjust the distance between the two clamping members 31 to fix the test piece. This arrangement can facilitate adjustment of the relative position relationship of the two clips 31 to adjust the spacing between the two clips 31 so that the two clips 31 are adapted to the size of the specimen, thereby enabling the clip structure 30 to adapt to specimens of different sizes, which is beneficial to improving the versatility of the clip structure 30.

[0062] As some embodiments of this application, Figure 2 、 Figure 5 and Figure 6 As shown, the opposing surfaces of the two clamping members 31 can be flat or curved, so that clamping members 31 with different surfaces can be selected according to the outer contour of the specimen, so that the clamping members 31 are adapted to the specimen and the specimen is firmly fixed.

[0063] In some embodiments of the present invention, Figure 1 As shown, the side wall 19 of the test space 11 is provided with a plurality of third adjusting members 26 , which are respectively connected to corresponding clamping members 31 , and the third adjusting members 26 are used to drive the corresponding clamping members 31 to move.

[0064] Among them, the number of third adjusting members 26 is two, the number of third adjusting members 26 is the same as the number of clips 31 and corresponds one to one, the two third adjusting members 26 are both provided on the side wall 19 of the test space 11, the two third adjusting members 26 are connected to the two clips 31 in a one-to-one correspondence, and the two third adjusting members 26 are respectively used to drive the corresponding clips 31 to move so that the two clips 31 move relatively away from or relatively close to each other in a direction perpendicular to the height direction of the explosion test box 100 to adjust the distance between the two clips 31.

[0065] As some embodiments of the present application, a side wall 19 of the test space 11 is formed with a third threaded hole 16 connected to the test space 11. The number of the third threaded holes 16 is two and corresponds one to one with the two third adjusting members 26. The two second threaded holes 14 both have internal threads. The two third adjusting members 26 are both constructed as threaded rods. The two third adjusting members 26 both have external threads. The two third adjusting members 26 are respectively passed through the corresponding third threaded holes 16 and threadedly engaged with the corresponding third threaded holes 16. The inner end of the third adjusting member 26 is fixedly connected to the corresponding clamping member 31. The inner end of the third adjusting member 26 is the end of the third adjusting member 26 extending into the test space 11.

[0066] By screwing the third adjusting member 26, the length of the third adjusting member 26 extending into the test space 11 can be adjusted, thereby driving the corresponding clamping member 31 to move in a direction perpendicular to the height direction of the burst test box 100, and the two clamping members 31 can be moved relatively away from or relatively close to each other to adjust the distance between the two clamping members 31. This arrangement facilitates the manipulation of the movement of the two clamping members 31, and can facilitate the fixation of the test piece in the test space 11, which is conducive to improving the ease of use of the burst test box 100.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0068] In the description of the present invention, "first feature" and "second feature" may include one or more such features.

[0069] In the description of the present invention, “plurality” means two or more.

[0070] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact via another feature therebetween.

[0071] In the description of the present invention, a first feature “above”, “above” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0072] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative use of the above terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0073] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A blast test chamber, characterized in that: include: A box body defines a test space, a top wall of the test space is provided with a first adjustment member, and side walls of the test space are provided with a plurality of second adjustment members; a top pressure plate, the top pressure plate being disposed in the test space and connected to the first adjusting member, the first adjusting member being used to drive the top pressure plate to move along a height direction of the explosion test box; Multiple side pressure plates are arranged in the test space and are respectively connected to multiple second adjustment members. Multiple side pressure plates are arranged circumferentially along the test space. At least two of the multiple side pressure plates are arranged opposite to each other. The second adjustment member is used to drive the corresponding side pressure plates to move in a direction perpendicular to the height direction of the blasting test box.

2. The explosion test chamber according to claim 1, characterized in that: A buffer pad is fixedly provided on the surface of the top pressure plate facing away from the top wall and / or the surface of the side pressure plate facing away from the side wall.

3. The explosion test chamber according to claim 1, characterized in that: The side pressure plate is a flat plate structure or an arc structure.

4. The explosion test box according to claim 1, characterized in that: A first threaded hole is formed on the top wall of the test space, the first threaded hole is connected to the test space, the first adjusting member is a threaded rod, the first adjusting member is passed through the first threaded hole, and the inner end of the first adjusting member is fixedly connected to the top pressure plate.

5. The explosion test chamber according to claim 1, characterized in that: A second threaded hole is formed on the side wall of the test space, the second threaded hole is connected to the test space, the second adjusting member is a threaded rod, the second adjusting member is passed through the second threaded hole, and the inner end of the second adjusting member is fixedly connected to the side pressure plate.

6. The explosion test chamber according to claim 1, characterized in that: The box body is formed with a through hole communicating with the test space, and the through hole is used to accommodate the detonating wire.

7. The explosion test chamber according to claim 6, characterized in that: The through hole is formed on the top wall of the test space.

8. The explosion test chamber according to any one of claims 1 to 7, characterized in that: Also includes: A clamping structure is provided in the test space, the clamping structure is located on the side of the top pressure plate away from the top wall of the test space, and is used to fix the test piece.

9. The explosion test box according to claim 8, characterized in that: The clamping structure includes two clamping parts, which are opposite to and spaced apart from each other in a direction perpendicular to the height direction of the explosion test box. At least one of the two clamping parts is movable in a direction perpendicular to the height direction of the explosion test box.

10. The explosion test chamber according to claim 9, characterized in that: A plurality of third adjusting members are provided on the side wall of the test space. The plurality of third adjusting members are respectively connected to the corresponding clamping members. The third adjusting members are used to drive the corresponding clamping members to move.

Images