Energy-gathered blasting device capable of conveniently controlling blasting orientation
By setting a limit structure on the energy-concentrating tube and guide members, the problem of the energy-concentrating tube deviating from the blasting direction due to friction rotation in the gun hole is solved, and the blasting direction is accurately controlled, which improves the blasting effect and accuracy.
Patent Information
- Application Number
- CN202422127803.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The energy-concentrating tube rotates due to friction when pushed into the gun hole, causing the direction of the cracks after the blasting of the rocks to deviate from the original direction, and the precise cutting profile cannot be achieved.
An energy-concentration blasting device is designed. By providing a first limiting part and a jet hole on the energy-concentration tube and a second limiting part on the guide member, the energy-concentration tube can adjust the direction of the jet hole by using the matching structure of the limiting part to ensure that the jet hole is consistent with the cut plane direction of the designed excavation contour line.
It effectively avoids the deflection of the energy-concentrating tube in the gun hole, ensures the consistency between the direction of the rock crack after blasting and the original direction, and improves the effect and accuracy of the blasting cutting profile.
Smart Images
Figure CN222964527U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blasting, in particular to a shaped charge blasting device which is convenient to control the blasting direction. Background Art
[0002] In current roadway and tunnel excavation projects, blasting projects are often involved. At present, a new directional fracture blasting technology has been adopted in blasting projects. This technology uses a shaped charge tube to control blasting. The shaped charge tube is a thin-walled round tube made of composite PVC material, and two rows of circular holes are arranged along the axial direction on the tube wall. When in use, the explosive cartridge is stuffed into the shaped charge tube, and then the shaped charge tube together with the explosive cartridge is pushed into the blast hole by a blasting rod. During blasting, through the explosion gas expanding at high pressure and high speed, an energy flow concentration is instantaneously formed at the round holes, so that the blasting impact acts concentratedly on the designed contour rock surface to generate cracks, and the cracks expand directionally under the action of the explosion gas to form a precisely controlled blasting surface. After blasting, the excavation contour surface has a good shape, the damage to the area outside the contour line is small, the over-excavation amount of the excavation is greatly reduced, and the self-compressive capacity of the surrounding rock is enhanced.
[0003] However, when the shaped charge tube is pushed into the blast hole by the blasting rod, the shaped charge tube will rotate due to the friction with the blast hole wall, so that the shaped charge round holes cannot be aligned with the section of the excavation contour line, resulting in the deviation of the direction of the rock cracks after blasting from the original direction and failing to achieve the effect of precise cutting of the contour. Content of the Utility Model
[0004] The purpose of the utility model is to solve the problem that in the prior art, the shaped charge tube will rotate due to the friction with the blast hole wall when being pushed into the blast hole, so that the shaped charge round holes cannot be aligned with the section of the excavation contour line, resulting in the deviation of the direction of the rock cracks after blasting from the original direction, and to provide a shaped charge blasting device which is convenient to control the blasting direction.
[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
[0006] The utility model provides a shaped charge blasting device which is convenient to control the blasting direction, comprising:
[0007] A shaped charge tube, on which a first limiting part and jet holes are arranged, and the position of the first limiting part in the circumferential direction of the shaped charge tube corresponds to the position of the jet holes in the circumferential direction of the shaped charge tube;
[0008] A guiding part, on which a second limiting part is arranged, and the second limiting part can cooperate with the first limiting part, so that the guiding part can limit or drive the shaped charge tube to rotate around the axis of the shaped charge tube itself.
[0009] The parameters such as the position, quantity, size, etc. of the jet holes are arranged by referring to the methods in the prior art.
[0010] The number and arrangement positions of the first limiting part and the second limiting part can be set as required, and the numbers of the first limiting part and the second limiting part do not necessarily have to be equal.
[0011] When there are multiple first limiting parts, at least one of them can correspond to the jet hole.
[0012] The first limiting part and the second limiting part can adopt common matching structures in the prior art, such as concave-convex matching structures, tenon-mortise structures, pin matching structures, etc.
[0013] By using a shaped charge blasting device for facilitating the control of blasting direction according to the present utility model, the second limiting part arranged on the guiding member cooperates with the first limiting part on the shaped charge tube to drive the shaped charge tube to rotate around its own axis, so that the shaped charge tube placed in the blast hole can adjust the direction of the jet hole to achieve correction. It can also be that during the process of pushing the shaped charge tube to the bottom of the blast hole, the jet hole is kept in the right direction through the cooperation of the first limiting part and the second limiting part, so that the direction of the jet hole of the placed-in-place shaped charge tube can be consistent with the cutting plane direction of the designed excavation contour line, effectively avoiding the deflection of the shaped charge tube, being beneficial to ensuring the consistency between the direction of the rock crack after blasting and the original direction, and improving the effect and precision of the blasting cutting contour. Since the positions of the first limiting part and the jet hole correspond in the circumferential direction of the shaped charge tube, the direction of the jet hole can be judged intuitively, quickly and accurately, further improving the precision of directional blasting.
[0014] Preferably, the first limiting part and the second limiting part are a groove and a convex block respectively.
[0015] This structure is simple, convenient to process and has low manufacturing cost. If the first limiting part is a groove, the second limiting part is a convex block, and vice versa.
[0016] Further preferably, the first limiting part is the groove, and the groove is opened on the end face of the shaped charge tube.
[0017] That is, the groove has an opening facing the corresponding end face, which is convenient for the convex block to directly insert into the groove from one end face to achieve the cooperation.
[0018] Further preferably, the convex block is arranged on the outer wall of the guiding member, and the side wall of the convex block protrudes from the side wall of the guiding member.
[0019] It is convenient to visually confirm the formation of the cooperation between the first limiting part and the second limiting part, and also convenient for the two to cooperate more stably. It is also convenient to have a certain flexibility and applicability for different pipe diameters of the shaped charge tube.
[0020] Further preferably, the two rows of the jet holes are symmetrically arranged, there are two of the grooves, and there are also two of the bumps. The two grooves are respectively arranged corresponding to one row of the jet holes, and the distance between the two bumps is greater than the diameter of the energy concentrating tube.
[0021] That is, the two grooves are arranged oppositely, and the two bumps are also arranged oppositely, which is convenient for maintaining balance during control. At the same time, the distance between the two bumps is greater than the diameter of the energy concentrating tube, further improving the stability of the limit fit.
[0022] Preferably, the first limiting parts are arranged at both ends of the energy concentrating tube, and the jet holes are located between the first limiting parts at both ends of the energy concentrating tube.
[0023] When it is loaded into the blast hole, the installation direction can be controlled at both ends.
[0024] Further preferably, the guiding member includes a tube body, and the second limiting part is arranged on the outer wall of the end of the tube body.
[0025] Further preferably, the length of the guiding member is greater than or equal to 2 m.
[0026] It is beneficial to improve the safety during the process of placing the energy concentrating tube.
[0027] Further preferably, the guiding member is an anti-static component.
[0028] The anti-static component can be in the way of adding anti-static agents during manufacturing, or in the way of film coating or adding a coating.
[0029] Further preferably, the energy concentrating tube is a PVC component.
[0030] Further preferably, it further includes an auxiliary guide rod. One end of the auxiliary guide rod has a head, and the cross-sectional dimension of the head is greater than the cross-sectional dimension of the auxiliary guide rod. The guiding member is a pipe fitting, and the cross-sectional dimension of the head is smaller than the cross-sectional dimension of the guiding member.
[0031] The auxiliary guide rod is used to push the explosive to the bottom of the energy concentrating tube, so that the explosives are in close contact, preventing voids from being generated between the explosives, resulting in partial explosives not being detonated. With the above settings, during the process of pushing the explosive or withdrawing the auxiliary guide rod, the guide rod can still effectively limit the orientation of the jet holes, avoiding the change of the orientation of the jet holes caused by loading the explosive.
[0032] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:
[0033] 1. By adopting an energy - concentrating blasting device for facilitating the control of blasting direction according to the present utility model, through the cooperation between the second limiting part arranged on the guiding part and the first limiting part on the energy - concentrating tube, the energy - concentrating tube is driven to rotate around its own axis, so that the energy - concentrating tube placed in the blast hole can adjust the direction of the jet holes to achieve correction. It can also be that during the process of pushing the energy - concentrating tube to the bottom of the blast hole, the jet holes are kept facing the desired direction through the cooperation of the first limiting part and the second limiting part. Thus, the direction of the jet holes of the energy - concentrating tube placed in place can be kept consistent with the cutting - plane direction of the designed excavation contour line, effectively avoiding the deflection of the energy - concentrating tube, which is beneficial to ensuring the consistency between the direction of the rock cracks after blasting and the original direction, and improving the effect and accuracy of the blasting cutting contour. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 is a schematic structural view of an energy - concentrating blasting device for facilitating the control of blasting direction in an embodiment; Figure 1 ;
[0035] Figure 2 is a schematic structural view of the energy - concentrating tube in the embodiment;
[0036] Figure 3 is a schematic structural view of the guiding part in the embodiment;
[0037] Figure 4 is Figure 1 a right - view schematic diagram of
[0038] Figure 5 is a schematic diagram of the auxiliary guide rod extending into the guiding part;
[0039] Figure 6 is a schematic structural view of an energy - concentrating blasting device for facilitating the control of blasting direction in an embodiment; Figure 2 。
[0040] Reference numerals: 1 - energy - concentrating tube; 11 - first limiting part; 2 - guiding part; 21 - second limiting part; 3 - jet hole; 4 - blast hole, 5 - auxiliary guide rod, 51 - end. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0041] The present utility model will be described in detail below with reference to the drawings.
[0042] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in combination with test examples and specific embodiments. However, this should not be understood that the scope of the above - mentioned subject matter of the present utility model is limited to the following embodiments only. All technologies implemented based on the content of the present utility model belong to the scope of the present utility model.
[0043] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / device / equipment of the present utility model is customarily used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.
[0044] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still perform its function in the solution of the present utility model.
[0045] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.
[0046] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a plurality of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be more than 9.
[0047] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / limited, the places where terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, threaded connection, etc. This connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. Embodiment
[0048] As Figures 1 - 4 shown, an energy - focused blasting device facilitating the control of blasting direction adopted in this embodiment includes:
[0049] An energy - focused tube 1, on which a first limiting portion 11 and jet holes 3 are provided. The position of the first limiting portion (11) in the circumferential direction of the energy - focused tube (1) corresponds to the position of the jet holes (3) in the circumferential direction of the energy - focused tube (1);
[0050] A guiding member 2, on which a second limiting portion 21 is provided. The second limiting portion 21 can cooperate with the first limiting portion 11, so that the guiding member 2 can limit or drive the energy - focused tube 1 to rotate around its own axis.
[0051] In some embodiments, the structural form of the energy - focused tube 1 can be the structural form in the prior art. Parameters such as the position, quantity, and size of the jet holes 3 are arranged by referring to the methods in the prior art.
[0052] In some embodiments, the guiding member 2 can be various structural forms such as a rod, a frame, a plate, etc., and can be a frame structure, a hollow structure, a solid structure, etc.
[0053] In some embodiments, the first limiting portion 11 and the second limiting portion 21 can adopt common mating structures in the prior art, such as a concave - convex mating structure, a mortise - tenon structure, a pin - shaft mating structure, a clamping mating structure, etc. The first limiting portion 11 and the second limiting portion 21 can be fixedly connected, detachably connected, or integrally formed with the corresponding energy - focused tube 1.
[0054] In some embodiments, the first limiting portion 11 and the second limiting portion 21 are respectively a groove and a protrusion. If the first limiting portion 11 is a groove, the second limiting portion 21 is a protrusion, and vice versa. In this embodiment, the first limiting portion 11 is a groove and the second limiting portion 21 is a protrusion. As Figures 1 - 4 shown, this structure is simple, convenient to process, and has a low manufacturing cost.
[0055] In some embodiments, the first limiting portion 11 can be located on the side wall, end, or end face of the energy - focused tube 1, can be directly formed on the energy - focused tube 1, or can be additionally installed. For example, if the first limiting portion 11 is a groove, the groove has an opening facing the corresponding end face, facilitating the protrusion to be directly inserted into the groove from one end face to achieve the cooperation. As Figure 2 shown.
[0056] In some embodiments, the second limiting portion 21 can be located on the side wall, end face, etc. of the guiding member, can be an externally attached structure, or can be directly formed by the guiding member 2 itself.
[0057] In some embodiments, when there are multiple first limiting portions 11, at least one of them may correspond to the jet holes 3. In this embodiment, the two columns of the jet holes 3 are symmetrically arranged, and the position of the first limiting portion 11 on the energy concentrating tube 1 is arranged corresponding to the axial direction of the jet holes 3. As Figure 2 shown, it is convenient to visually display the direction of the jet holes 3, and the direction of the jet holes 3 can be quickly, accurately, and visually judged according to the orientation of the first limiting portion 11, further improving the accuracy of the placement direction of the jet holes 3.
[0058] In some embodiments, the convex block may be provided on the outer wall of the guiding member (2), and the side wall of the convex block protrudes from the side wall of the guiding member (2). It is convenient to visually confirm the cooperation between the first limiting portion and the second limiting portion, and it is also convenient for the two to cooperate more stably. It is also convenient to have a certain flexibility in adapting to different pipe diameters of the energy concentrating tube.
[0059] In some embodiments, there are two of the grooves, and there are also two of the convex blocks. The two grooves are respectively arranged corresponding to one column of the jet holes 3, and the distance between the two convex blocks is greater than the diameter of the energy concentrating tube (1). As Figures 2 - 4 shown. Of course, there may also be four evenly distributed grooves, and the convex blocks can still be two, symmetrically arranged.
[0060] In some embodiments, in addition to being able to select the position and quantity of the grooves in the circumferential direction, the position and quantity of the grooves can also be changed in the axial direction. The convex blocks can be correspondingly arranged in position and quantity, or only one row can be arranged, which is convenient for adjusting the relative position when cooperating with the first limiting portion 11.
[0061] In some embodiments, the guiding member 2 includes a tube body, and the second limiting portion 21 is provided on the outer wall of the end of the tube body. As Figures 3 - 4 shown.
[0062] In some embodiments, the length of the guiding member 2 is greater than or equal to 2 m, such as 2.5 m, which is beneficial to improving the safety during the process of placing the energy concentrating tube 1.
[0063] In some embodiments, the guiding member 2 is an anti-static component. Such as anti-static acrylic plates, PVC plates, PE plates, etc. The anti-static component can be in the way of adding anti-static agents during manufacturing, or in the way of laminating or adding coatings.
[0064] In some embodiments, the energy concentrating tube 1 can be a PVC component, a PE component, a stainless steel component, etc., and the length of the energy concentrating tube is set according to actual needs.
[0065] In some embodiments, for the shaped charge tube 1 filled with explosives, after it is basically inserted into the blast hole 4, the second limiting portion 21 on the guiding member 2 is engaged with the first limiting portion 1 to enable the shaped charge tube 1 placed in the blast hole 4 to adjust the direction of the jet hole 3, thus achieving correction.
[0066] In some embodiments, the second limiting portion 21 and the first limiting portion 1 can be engaged to push the shaped charge tube 1 filled with explosives to the bottom of the blast hole 4. During the pushing process, the jet hole 3 is kept oriented, so that the direction of the jet hole 3 of the shaped charge tube 1 placed in place can be kept consistent with the tangent direction of the designed excavation contour line.
[0067] In some embodiments, it further includes an auxiliary guide rod 5. One end of the auxiliary guide rod 5 has a head 51, and the cross-sectional dimension of the head 51 is larger than that of the auxiliary guide rod 5. The guiding member 2 is a pipe fitting, and the cross-sectional dimension of the head 51 is smaller than that of the guiding member 2. As Figure 5 shown, the auxiliary guide rod 5 can extend into the guiding member 2 and extend out from the other end, so as to push the explosive to the bottom of the shaped charge tube 1 when the guiding member 2 restricts the rotation of the shaped charge tube 1. As Figure 6 shown.
[0068] A shaped charge blasting device for facilitating the control of blasting orientation according to the present invention drives the shaped charge tube 1 to rotate around its own axis by the cooperation of the second limiting portion 21 provided on the guiding member 2 and the first limiting portion 11 on the shaped charge tube 1, effectively avoiding the deflection of the shaped charge tube 1, which is beneficial to ensuring the consistency between the direction of the rock crack after blasting and the original direction, and improving the effect and accuracy of the blasting cutting contour.
[0069] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A blasting device that is easy to control the blasting direction, characterized in that: Include: An energy concentrating tube (1), wherein the energy concentrating tube (1) is provided with a first limiting portion (11) and an ejection hole (3), wherein the position of the first limiting portion (11) in the circumferential direction of the energy concentrating tube (1) corresponds to the position of the ejection hole (3) in the circumferential direction of the energy concentrating tube (1); A guide member (2), wherein a second limiting portion (21) is provided on the guide member (2), and the second limiting portion (21) can cooperate with the first limiting portion (11), thereby enabling the guide member (2) to limit or drive the energy concentrating tube (1) to rotate around the axis of the energy concentrating tube (1) itself.
2. A blasting device that facilitates control of blasting direction according to claim 1, characterized in that: The first limiting portion (11) and the second limiting portion (21) are respectively a groove and a convex block.
3. A blasting device that facilitates control of blasting direction according to claim 2, characterized in that: The first limiting portion (11) is the groove, and the groove is opened on the end surface of the energy concentrating tube (1).
4. A blasting device that facilitates control of blasting direction according to claim 3, characterized in that: The protrusion is arranged on the outer wall of the guide member (2), and the side wall of the protrusion protrudes from the side wall of the guide member (2).
5. A shaped charge blasting device that facilitates control of blasting direction according to claim 4, characterized in that: The two rows of jet holes (3) are symmetrically arranged, there are two grooves, and there are two protrusions. The two grooves are respectively arranged corresponding to one row of jet holes (3), and the distance between the two protrusions is greater than the diameter of the energy-gathering tube (1).
6. A shaped charge blasting device that facilitates control of blasting direction according to any one of claims 1 to 5, characterized in that: The first limiting portions (11) are provided at both ends of the energy focusing tube (1), and the jet hole (3) is located between the first limiting portions (11) at the two ends of the energy focusing tube (1).
7. A blasting device for controlling blasting direction according to claim 6, characterized in that: The guide member (2) comprises a tube body, and the second limiting portion (21) is arranged on the outer wall of the end portion of the tube body.
8. The blasting device for controlling blasting direction according to claim 6, characterized in that: The length of the guide member (2) is greater than or equal to 2 m.
9. A blasting device that facilitates control of blasting direction according to claim 6, characterized in that: The guide member (2) is an antistatic component, and the energy-gathering tube (1) is a PVC component.
10. The blasting device for controlling blasting direction according to claim 6, characterized in that: It also comprises an auxiliary guide rod (5), one end of which has an end head (51), the cross-sectional dimension of the end head (51) being larger than the cross-sectional dimension of the auxiliary guide rod (5), and the guide member (2) being a pipe member, the cross-sectional dimension of the end head (51) being smaller than the cross-sectional dimension of the guide member (2).