Improved full-hole initiation protection device

Abstract

The utility model relates to the technical field of mine engineering blasting auxiliary equipment, and specifically discloses an improved full-hole detonation protection device, which comprises a cartridge, the outer side of the cartridge is provided with a longitudinal positioning structure, the outer side of the cartridge is provided with a framework, one end of the framework is adapted to the longitudinal positioning structure and is used for fixing the cartridge at a preset position, two symmetrically arranged detonating tube clamping grooves are formed in the outer side of the cartridge and are used for embedding the detonator leg wire, the longitudinal positioning structure arranged on the outer side of the cartridge is used in cooperation with the framework, the cartridge can be effectively longitudinally positioned, the installation depth of the device in the blast hole can meet the design requirement, the cartridge can be prevented from longitudinally sliding in the blast hole, and the blasting effect can be avoided from being affected by the inaccurate longitudinal position.

Description

Technical Field

[0001] This utility model relates to the field of blasting auxiliary equipment technology in mining engineering, specifically an improved full-hole detonation protection device. Background Technology

[0002] In open-pit bench blasting and underground medium-deep hole mining blasting operations, the installation of the detonating charge and detonator assembly is a crucial step. Depending on the design requirements, the detonating charge may need to be placed at the bottom of the borehole or in the middle of the borehole.

[0003] To address the positioning problem of detonator mounting bases during circumferential rotation, existing technologies have been continuously developed. For example, patent CN204574952U discloses a protective device that achieves circumferential positioning by having a protrusion on the inner wall of the cartridge cooperate with the groove of the detonator mounting base, which improves the positioning accuracy of the detonator mounting base to a certain extent.

[0004] However, current solutions still have many problems that urgently need to be addressed. For example: 1) Existing devices generally lack effective longitudinal stopping measures, making it difficult to maintain a consistent installation depth of the detonation protection device in the blast hole, and preventing precise installation at the designated position within the blast hole, thus affecting the effectiveness and safety of blasting operations. 2) The protection for detonator assemblies is inadequate, with significant deficiencies in mechanical impact resistance and electrostatic protection. Detonator assemblies are easily affected by external impacts and static electricity during transportation and installation, increasing safety hazards. 3) Most protective cover structures use threaded connections, which have low assembly and disassembly efficiency. In actual field operations, this requires a significant amount of time and manpower, hindering rapid operation and reducing the overall efficiency of blasting operations.

[0005] Based on this, this application provides an improved full borehole detonation protection device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an improved full-bore detonation protection device, which solves the problem that in existing technologies, the detonating charge must be placed at the bottom or middle of the borehole according to the design in open-pit bench blasting and underground medium-deep hole mining blasting operations. Although existing technologies have solved the problem of circumferential positioning of the detonator mounting base, they have defects such as lack of longitudinal stop, insufficient mechanical impact resistance and electrostatic protection for the detonator assembly, and low efficiency in installing and removing the protective cover.

[0007] The improved full borehole detonation protection device of this utility model includes a cartridge case; The outer side of the cartridge case is provided with a longitudinal positioning structure; The outer side of the cartridge is provided with a frame, one end of which is adapted to a longitudinal positioning structure to fix the cartridge at a preset position. The outer side of the cartridge has two symmetrically arranged detonator slots for embedding the detonator lead wire; The top of the cartridge is provided with a quick-release bayonet protective cap for sealing the cartridge; Two symmetrically arranged detonator slots are provided on the outer side of the cartridge case for embedding the detonator lead wire.

[0008] As a further improvement of this utility model, the frame includes a frame body, and there are at least two frames body, which are arranged in a mirror image with respect to the vertical center line of the cartridge.

[0009] As a further improvement of this utility model, one end of the frame is provided with an abutment member, which abuts against the inner side of the hole wall to position the frame.

[0010] As a further improvement of this utility model, a friction layer is provided on the outer side of the contact member, and the inner side of the friction layer is in frictional contact with the hole wall.

[0011] As a further improvement of this utility model, a positioning ring is provided in the middle of the frame. The positioning ring includes a ring body, and one or more limiting blocks are arranged in a ring array on the outer side of the ring body. A slot is provided at the limiting block, and the slot is rotatably connected to the end of the frame away from the contacting member.

[0012] As a further improvement of this utility model, a positioning cylinder is provided in the middle of the positioning ring, and the positioning cylinder is engaged with the outer side of the medicine cartridge to ensure a stable connection between the medicine cartridge and the positioning device.

[0013] As a further improvement of this utility model, a limiting component is provided on the inner side of the detonator slot to limit the detonator lead wire.

[0014] As a further improvement of this utility model, the limiting component includes a diaphragm, and the top of the diaphragm is provided with a flange that is arc-shaped at a preset angle.

[0015] As a further improvement of this utility model, the center of the flange is through-hole, and one or more springs arranged in a ring array are provided on the inner side of the through-hole of the flange. The springs are inclined at a preset angle and form an insertion area for fixing the detonator lead wire.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model has a longitudinal positioning structure set on the outside of the cartridge case. With the use of the frame, it can effectively achieve longitudinal positioning of the cartridge case, ensure that the installation depth of the device in the borehole meets the design requirements, prevent the cartridge case from moving arbitrarily in the longitudinal direction, and avoid affecting the blasting effect due to inaccurate longitudinal position. The positioning ring in the middle of the frame has a limiting block on the outside of the ring that is rotatably connected to the frame, allowing the frame to flexibly adjust its angle to adapt to different borehole conditions. The positioning cylinder in the middle of the positioning ring is engaged with the outside of the cartridge case, further restricting the cartridge case and preventing longitudinal displacement of the cartridge case, thus improving the positioning accuracy of the device in the borehole. Meanwhile, the buffer electrostatic conductive layer set between the detonator and the longitudinal positioning component is made of special rubber material. It can not only buffer the detonator when it is subjected to external impact, reducing the impact of the impact force on the detonator, but also conduct static electricity away in time, avoiding static electricity accumulation and damage to the detonator, thus improving the safety of the detonator. The quick-release bayonet protective cover on the top of the detonator mounting base adopts a bayonet design, which is more convenient and faster to install and remove than the traditional threaded protective cover. It can also be quickly removed during disassembly, improving work efficiency.

[0017] 2. This utility model utilizes a frame set on the inner side of the outer hole wall of the cartridge to ensure uniform force distribution on the cartridge. The contact member at one end of the frame abuts against the inner side of the hole wall, and the friction layer on the outer side of the contact member increases the friction between the frame and the hole wall when the frame opens, preventing the frame from sliding, ensuring the fixing effect of the frame on the cartridge, and improving the overall stability of the device; The limiting component inside the detonator slot provides reliable support and fixation for the detonator lead wire through a diaphragm, a flange set at a preset angle arc, and springs arranged in a ring array in the middle of the flange. The arc-shaped flange can adapt to the shape of the detonator lead wire and buffer external forces. The insertion area formed by the springs generates a clamping force towards the center of the detonator lead wire, preventing the detonator lead wire from shaking and shifting, and further enhancing the stability of the device. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the cartridge case, quick-release bayonet protective cover, longitudinal positioning structure, and hole wall assembly structure of this utility model. Figure 2 This is a schematic diagram of the hole wall, longitudinal positioning structure, and skeleton assembly structure of this utility model: Figure 3 This is a schematic diagram of the combined structure of the cartridge case and the quick-release bayonet protective cover of this utility model; Figure 4 This is a schematic diagram of the combined structure of the skeleton and the longitudinal positioning structure of this utility model; Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the three-dimensional structure of the positioning ring and the skeleton of this utility model; Figure 7 This is a schematic diagram of the three-dimensional structure of the skeleton branch of this utility model; Figure 8 for Figure 7 Enlarged structural diagram at point B; Figure 9 This is a top view of the limiting component of this utility model; Figure 10 This is a side view of the limiting component of this utility model; Figure 11 This is a three-dimensional structural diagram of the limiting component of this utility model; Figure 12 This is a front view structural diagram of the combination of the friction layer and the contact element of this utility model.

[0019] In the diagram: 1. Cartridge; 2. Quick-release bayonet protective cover; 3. Longitudinal positioning structure; 4. Hole wall; 5. Buffer electrostatic conductive layer; 6. Skeleton; 7. Detonating cord slot; 8. Positioning ring; 9. Limiting component; 61. Abutting component; 62. Frame; 63. Friction layer; 81. Positioning cylinder; 82. Ring body; 83. Limiting block; 91. Diaphragm; 92. Spring; 93. Insertion area; 94. Flange. Detailed Implementation

[0020] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0021] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] In open-pit bench blasting and underground medium-deep hole mining blasting operations, the detonating charge needs to be placed at the bottom or middle of the borehole according to the design. While existing technologies have solved the problem of circumferential positioning of the detonator mounting base, they suffer from drawbacks such as lack of longitudinal stops, insufficient mechanical impact resistance and electrostatic protection for the detonator assembly, and low efficiency in installing and removing the protective cover. Therefore, this application provides an improved full-bore detonation protection device. Please refer to [link to relevant documentation]. Figures 1 to 5 The device includes a cartridge 1, and a longitudinal positioning structure 3 is provided on the outer side of the cartridge 1; A frame 6 is provided on the outside of the cartridge 1. One end of the frame 6 is adapted to the longitudinal positioning structure 3 to fix the cartridge 1 at a preset position. Two symmetrically arranged detonator slots 7 are provided on the outer side of the cartridge 1 for embedding the detonator lead wire; The top of the cartridge 1 is provided with a quick-release bayonet protective cap 2 for sealing the cartridge 1; Two symmetrically arranged detonator slots 7 are provided on the outer side of the cartridge 1 for embedding the detonator lead wire.

[0023] See Figure 4 In the figure, 4 is the borehole wall 4. The borehole is an arbitrary hole. The cartridge 1 is installed inside the borehole wall 4. A longitudinal positioning structure 3 is provided inside the cartridge 1. The longitudinal positioning structure 3 positions the cartridge 1 longitudinally. In application, the cartridge and the longitudinal positioning structure are placed in the borehole, which can achieve arbitrary positioning of the borehole depth.

[0024] Specifically, the longitudinal positioning structure 3 can be a ring-shaped part that prevents the components inside the cartridge case 1 from moving freely in the longitudinal direction, ensuring that the installation depth of the device in the borehole meets the design requirements.

[0025] When in use, explosives are loaded into the cartridge case, the detonator is inserted into the explosives, the lead wire of the detonator is inserted into the detonating cord slot 7 on the outside of the cartridge case, and then the cartridge case is placed into the borehole.

[0026] A detonator mounting seat is provided in the middle of the longitudinal positioning structure 3. The detonator mounting seat is located above the explosive and is used to install the detonator, providing a stable installation position for the detonator. The detonator is installed above the detonator mounting seat. Through the cooperation of the longitudinal positioning structure 3 and the detonator mounting seat, the detonator can be accurately positioned in the designated position inside the cartridge 1.

[0027] Meanwhile, to facilitate the detonation of explosives, the length of the detonator's lead wire is customized according to the hole depth during the manufacturing process. The end of the detonator is placed inside the cartridge containing explosives, and the lead wire of the detonator extends from the cartridge all the way to the opening of the borehole.

[0028] Meanwhile, to prevent the influence of static electricity, a buffer static electricity conductive layer 5 is provided between the detonator and the longitudinal positioning component. The buffer static electricity conductive layer 5 can be made of materials with buffering and static electricity conduction properties, such as rubber, and coated with a static electricity conductive coating to absorb impact and release static electricity. It can not only buffer the detonator when it is subjected to external impact, reducing the impact of the impact force on the detonator, but also conduct static electricity away in time, avoiding static electricity accumulation and damage to the detonator, thus improving the safety of the detonator.

[0029] The top of the detonator mounting base is equipped with a quick-release bayonet protective cover 2. The quick-release bayonet protective cover 2 is used to seal the cartridge case. During application, the explosive and detonator are placed in the cartridge case to prevent external dust, moisture and other impurities from entering the detonator mounting base and affecting the performance of the detonator.

[0030] Unlike existing protective covers that use threaded connections, the quick-release bayonet protective cover 2 uses a bayonet design. This design makes the installation and removal of the protective cover more convenient and quick. In on-site operation, the staff only needs to align the protective cover with the bayonet on the detonator mounting base and press it gently to complete the installation. Disassembly is also simple and quick, greatly improving the efficiency of installation and disassembly.

[0031] In some embodiments, the frame 6 can be a rod-shaped structure made of metal or high-strength plastic, with one end designed to match the shape of the longitudinal positioning structure 3, such as a groove or a protrusion. When the cartridge 1 is placed in the borehole, one end of the frame 6 cooperates with the longitudinal positioning structure 3 to fix the cartridge 1, preventing the cartridge 1 from shaking or shifting in the borehole, and further ensuring the stability of the device in the borehole.

[0032] Two symmetrically arranged detonating cord slots 7 are provided on the outer side of the cartridge 1. The detonating cord slots 7 are used to embed the detonator lead wire. The detonator lead wire is fixed to the outer side of the cartridge 1 through the slots. The symmetrical arrangement of the detonating cord slots 7 makes the installation of the detonator lead wire more stable and balanced, facilitates the connection between the detonator lead wire and detonator and other components, and ensures the smooth progress of the detonation process.

[0033] In summary, the longitudinal positioning problem was solved by setting the longitudinal positioning structure 3, the shock resistance and anti-static performance of the detonator was improved by using the buffer electrostatic conductive layer 5, the quick-installation bayonet protective cover 2 improved the installation and disassembly efficiency, and the stability and practicality of the device were further optimized by the skeleton 6 and the detonating cord slot 7, which can better meet the needs of open-pit bench blasting and underground medium and deep hole mining blasting operations.

[0034] Please see Figure 5 , Figure 6 , Figure 7 , Figure 8 The frame 6 includes a frame 62, and there are at least two frames 62, which are arranged in a mirror image with respect to the vertical center line of the cartridge.

[0035] One end of the frame 62 is provided with an abutment 61, which abuts against the inner side of the hole wall 4 to position the frame 6.

[0036] The frame 6 includes a frame 62, of which there are at least two, and they are arranged in a mirror image of the vertical center line of the cartridge case. This symmetrical arrangement allows the cartridge case 1 to be subjected to more uniform force in the borehole, thereby improving the stability of the cartridge case 1 installation.

[0037] For example, when two frames 62 are installed, they are located on both sides of the cartridge 1, symmetrically distributed with the vertical centerline of the detonator mounting base as the axis of symmetry. If there are irregularities in the borehole, such as unevenness in the borehole wall 4, the symmetrically arranged frames 62 can better adapt to this situation, supporting and fixing the cartridge 1 from both sides, preventing the cartridge 1 from tilting or shaking due to uneven force. If more frames 62 are installed according to actual needs, and distributed in a mirror image with respect to the vertical centerline of the cartridge, the fixing effect on the cartridge 1 can be further enhanced.

[0038] Each frame 62 has an abutment 61 at one end, which abuts against the inner side of the borehole wall 4 to position the frame 6. The abutment 61 can be of various shapes and materials to better adapt to different borehole environments.

[0039] For example, the contact element 61 can be designed in an arc shape, with its curvature similar to that of the borehole wall 4. This increases the contact area when it contacts the inner side of the borehole wall 4, making the contact tighter. The material of the contact element 61 can be rubber or silicone with a certain degree of elasticity. When the cartridge 1 is placed into the borehole, the contact element 61 will deform to a certain extent due to the pressure of the borehole wall 4. This deformation can generate a reverse elastic force, making the contact element 61 fit more firmly against the borehole wall 4, thereby achieving the positioning of the skeleton 6.

[0040] In actual operation, after the worker places the cartridge case 1 into the borehole, the contact element 61 on the frame 62 will naturally contact the inner side of the borehole wall 4 and generate a resisting force. Since the frame 62 is set in a mirror image with the vertical centerline of the cartridge case, the resisting forces generated by each contact element 61 are balanced, and together they stably fix the cartridge case 1 in the borehole. At the same time, the contact element 61 also acts as a buffer, reducing the collision between the cartridge case 1 and the borehole wall 4 during installation, and protecting the cartridge case 1 and internal components such as the detonator from damage.

[0041] In summary, the frame 6 achieves stable fixation and positioning of the cartridge 1 through at least two frame bodies 62 arranged in a mirror image of the vertical centerline of the cartridge, and the contact member 61 at one end of the frame body 62 abutting against the inner side of the borehole wall 4. This further improves the installation stability and reliability of the device in the blast hole, and better meets the requirements of open-pit bench blasting and underground medium-deep hole mining blasting operations.

[0042] Please see Figures 6 to 12 A friction layer 63 is provided on the outer side of the contact member 61, and the inner side of the friction layer 63 is in frictional contact with the hole wall 4 to increase the friction force when the frame 62 opens.

[0043] A positioning ring 8 is provided in the middle of the frame 62. The positioning ring 8 includes a ring body 82. One or more limiting blocks 83 are arranged in a ring array on the outer side of the ring body 82. A slot is provided at the limiting block 83. The slot is rotatably connected to the end of the frame 62 away from the contact member 61.

[0044] A positioning cylinder 81 is provided in the middle of the positioning ring 8. The positioning cylinder 81 is engaged with the outer side of the cartridge 1 to ensure a secure connection between the cartridge and the positioning device.

[0045] To further enhance the stability of the device within the borehole, a friction layer 63 is provided on the outer side of the contact member 61. The inner side of the friction layer 63 is in frictional contact with the inner wall of the borehole 4, and its function is to increase the frictional force when the frame 62 opens.

[0046] The friction layer 63 can be made of a material with a high coefficient of friction, such as rubber or a special friction material. These materials have a certain degree of surface roughness, which generates significant friction with the inner wall of the borehole 4. When the cartridge case 1 is inserted into the borehole, the frame 62 opens under its own structure or external force, and the contact element 61 contacts the borehole wall 4. At this point, the friction layer 63 comes into play. For example, in some blasting operations, the borehole wall 4 may have some unevenness or minor protrusions and depressions. The friction layer 63 can better adapt to such irregular borehole wall surfaces, increasing friction to prevent the frame 62 from sliding on the borehole wall 4, ensuring the fixation of the frame 6 to the cartridge case 1. Even under conditions of vibration or other external interference within the borehole, the friction layer 63 can effectively maintain the relative position of the frame 62 and the borehole wall 4, improving the overall stability of the device.

[0047] A positioning ring 8 is provided in the middle of the frame 62, and the positioning ring 8 includes a ring body 82. One or more limiting blocks 83 are arranged in a circular array on the outer side of the ring body 82. The number of limiting blocks 83 is determined according to the number of frame bodies 62, and usually one limiting block 83 corresponds to one frame body 62. A slot is provided at the limiting block 83, and the slot is rotatably connected to the end of the frame body 62 away from the contact member 61.

[0048] This rotating connection allows the frame 62 to rotate flexibly within a certain range. When the cartridge case 1 is inserted into the borehole, the frame 62 can adjust its angle according to the actual situation of the borehole wall 4 to better fit against it. By rotating within the slot, the frame 62 can adaptively adjust its angle, ensuring that the contact member 61 can make tight contact with the borehole wall 4. At the same time, the slot design also limits the rotation range of the frame 62 to prevent it from rotating excessively and losing its fixing effect on the cartridge case 1.

[0049] A positioning cylinder 81 is provided in the middle of the positioning ring 8. The positioning cylinder 81 is engaged with the outer side of the cartridge 1 to ensure a stable connection between the cartridge and the positioning device. The positioning cylinder 81 can be a ring structure with a certain degree of elasticity. Its inner diameter is slightly smaller than the outer diameter of the cartridge 1. When the positioning cylinder 81 is placed on the outer side of the cartridge 1, the positioning cylinder 81 will undergo a certain elastic deformation, thereby tightly securing the cartridge 1.

[0050] The positioning cylinder 81 has two main functions. First, it prevents the cartridge 1 from shifting in the longitudinal direction. During the insertion of the cartridge 1 into the borehole, it may be affected by external forces such as vibration and collision. The positioning cylinder 81 can fix the cartridge 1 in the middle position of the positioning ring 8, ensuring that the longitudinal position of the cartridge 1 in the borehole meets the design requirements. Second, the positioning cylinder 81 can also enhance the connection stability between the cartridge 1 and the frame 6 to a certain extent. Through cooperation with the positioning ring 8, the cartridge 1 and the frame 6 form a relatively stable whole, further improving the installation quality of the device in the borehole.

[0051] In summary, the friction layer 63, positioning ring 8, and positioning cylinder 81 work together to improve the stability and positioning accuracy of the device in the blast hole from different aspects, thus better meeting the actual needs of open-pit bench blasting and underground medium-deep hole mining blasting operations.

[0052] Please see Figure 1 , Figure 9 , Figure 10 , Figure 11 as well as Figure 5 A limit component 9 is provided on the inner side of the detonator slot 7 to support the detonator lead wire.

[0053] The limiting component 9 includes a diaphragm 91, and the top of the diaphragm 91 is provided with a flange 94 that is arc-shaped at a preset angle.

[0054] The flange 94 is through-hole in the middle, and one or more springs 92 arranged in a ring array are provided on the inner side of the through-hole of the flange 94. The springs 92 are inclined at a preset angle and form a plug-in area 93 for fixing the detonator lead wire.

[0055] Two symmetrically arranged detonator slots 7 are provided on the outside of the cartridge 1 for embedding the detonator lead wire. In order to better support and fix the detonator lead wire, a limiting component 9 is provided on the inside of the detonator slot 7. This is to ensure that the detonator lead wire is in a stable position in the slot, and to avoid the detonation effect being affected by shaking or displacement during transportation, installation and blasting operations, thereby improving the safety and reliability of the entire blasting operation.

[0056] The limiting component 9 includes a diaphragm 91, which provides basic support. It fits against the inner wall of the detonating cord slot 7. The top of the diaphragm 91 is provided with a flange 94 with a preset arc shape. On the one hand, the arc shape can better adapt to the shape of the detonator lead wire. When the detonator lead wire is put into the detonating cord slot 7, the flange 94 can provide a certain wrapping and support effect from the side. The arc-shaped flange 94 can buffer the impact of these external forces on the detonator lead wire to a certain extent, reducing the collision and friction between the detonator lead wire and the slot.

[0057] On the other hand, the preset angle of the arc setting allows the flange 94 to generate appropriate support force when supporting the detonator lead wire. This angle is determined through actual testing and optimization based on the size of the detonator lead wire and the structure of the slot, which ensures that the flange 94 will not apply too much pressure to the detonator lead wire and cause it to be damaged, while providing sufficient support force to prevent the detonator lead wire from shaking.

[0058] The flange 94 is through-type, and one or more spring contacts 92 arranged in a circular array are located inside the through-type flange 94. The spring contacts 92 are inclined at a preset angle, and the multiple spring contacts 92 form a plug-in area 93 for fixing the detonator lead wire.

[0059] The spring contacts 92 are typically made of a metal material with a certain degree of elasticity, such as a thin sheet of spring steel. When the detonator lead is inserted into the insertion area 93, the spring contacts 92 are compressed and undergo elastic deformation. Since the spring contacts 92 are inclined, they exert a clamping force towards the center on the detonator lead. This clamping force effectively fixes the detonator lead within the insertion area 93, preventing the detonator lead from moving up and down or wobbling left and right within the slot.

[0060] For example, in underground deep-hole mining blasting operations, the cartridge 1 needs to be lowered into a deeper blast hole using specialized equipment, during which it will experience some bumps and vibrations. The retaining action of the spring 92 ensures that the detonator lead remains in the correct position and will not dislodge from the slot or shift due to these external factors. Moreover, when it is necessary to remove the detonator lead, only a certain amount of external force needs to be applied to overcome the clamping force of the spring 92, and the detonator lead can be easily pulled out, making the operation convenient and quick.

[0061] In summary, the detonator slot 7 and limiting component 9 in the improved full-hole detonation protection device provide reliable support and fixation for the detonator lead wire through the synergistic action of the diaphragm 91, flange 94 and spring 92, thereby improving the stability and safety of blasting operations and better meeting the needs of actual blasting operations.

[0062] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An improved full-hole detonation protection device, comprising a cartridge case (1), characterized in that... ； The outer side of the cartridge (1) is provided with a longitudinal positioning structure (3); The outer side of the cartridge (1) is provided with a frame (6), one end of the frame (6) is adapted to the longitudinal positioning structure (3) for fixing the cartridge (1) at a preset position; Two symmetrically arranged detonator slots (7) are provided on the outer side of the cartridge (1) for embedding the detonator lead wire; The top of the cartridge (1) is provided with a quick-release bayonet protective cap (2) for sealing the cartridge (1); Two symmetrically arranged detonator slots (7) are provided on the outer side of the cartridge (1) for embedding the detonator lead wire.

2. The improved full-hole detonation protection device according to claim 1, characterized in that: The frame (6) includes a frame (62), and there are at least two frames (62), which are arranged in a mirror image of the vertical center line of the cartridge.

3. The improved full-hole detonation protection device according to claim 2, characterized in that: One end of the frame (62) is provided with an abutment (61), which is used to abut against the inner side of the hole wall (4) to position the skeleton (6).

4. The improved full-hole detonation protection device according to claim 3, characterized in that: The outer side of the contact member (61) is provided with a friction layer (63), and the inner side of the friction layer (63) is in frictional contact with the hole wall (4).

5. The improved full-hole detonation protection device according to claim 3, characterized in that: A positioning ring (8) is provided in the middle of the frame (62). The positioning ring (8) includes a ring body (82). One or more limiting blocks (83) are arranged in a ring array on the outer side of the ring body (82). A slot is provided at the limiting block (83). The slot is rotatably connected to the end of the frame (62) away from the contact member (61).

6. The improved full-hole detonation protection device according to claim 5, characterized in that: The positioning ring (8) is provided with a positioning cylinder (81) in the middle. The positioning cylinder (81) is engaged with the outer side of the cartridge (1) to ensure a stable connection between the cartridge and the positioning device.

7. The improved full-hole detonation protection device according to claim 1, characterized in that: The inner side of the detonator slot (7) is provided with a limiting component (9) for limiting the detonator lead wire.

8. The improved full-hole detonation protection device according to claim 7, characterized in that: The limiting component (9) includes a diaphragm (91), and the top of the diaphragm (91) is provided with a flange (94) arranged in an arc shape at a preset angle.

9. The improved full-hole detonation protection device according to claim 8, characterized in that: The flange (94) is through-hole in the middle, and one or more springs (92) arranged in a ring array are provided on the inner side of the through-hole of the flange (94). The springs (92) are inclined at a preset angle and form a plug-in area (93) for fixing the detonator lead wire.

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