Explosive fixing device and explosive fixing assembly with same

Abstract

The utility model discloses an explosive fixing device and an explosive fixing assembly with the same, and relates to the technical field of blasting devices. The explosive fixing device comprises a device body, an adjusting rod set and a plurality of mounting plates, the device body defines a filling space used for filling explosives and provided with one open end, the adjusting rod set comprises a plurality of adjusting rods, one ends of the adjusting rods are all connected with the device body in a clamped mode, the mounting plates are connected with the corresponding adjusting rods, and the mounting plates are provided with a plurality of inserting block structures; and the length of the adjusting rod is adjustable. By arranging the adjusting rod with the adjustable length and the mounting plate capable of abutting against the inner wall of the blast hole for limiting, the device body can be fixed to the center of the blast hole, the explosive fixing device is not prone to sliding, explosives can be stably fixed to the position needed by blasting, the use reliability of the explosive fixing device is improved, and the explosive fixing device is convenient to use. The damage degree of explosives to surrounding rocks around blast holes is uniform, the energy of the explosives is fully exerted, the success rate of blasting operation is increased, and the blasting cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting devices, in particular to an explosive fixing device and an explosive fixing assembly having the same. Background Art

[0002] In related technologies, during blasting operations, the diameters of blast holes vary. It is difficult for existing equipment to place explosives at the center position of the blast holes, so that the degree of damage to the surrounding rock of the blast holes by the explosives is uneven, and it is difficult to fully utilize the energy of the explosives, resulting in a low success rate of blasting operations and an increase in blasting costs. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the utility model is to provide an explosive fixing device that can be adjusted to be located at the center position of the blast hole, so as to make the degree of damage to the surrounding rock of the blast hole by the explosives uniform, improve the success rate of blasting operations, and reduce blasting costs.

[0004] The utility model further provides an explosive fixing assembly having the explosive fixing device.

[0005] According to an embodiment of the utility model, the explosive fixing device includes: a device body, the device body defining a filling space for filling explosives and having one end open, or the device body defining the filling space for filling the explosives and having both ends open; an adjusting rod group, the adjusting rod group including a plurality of adjusting rods, one ends of the plurality of adjusting rods being snap-connected to the device body and surrounding the device body; a plurality of mounting plates, the number of the plurality of mounting plates being the same as that of the plurality of adjusting rods and corresponding one by one, the mounting plate being connected to the end of the corresponding adjusting rod away from the device body, and the surface of the mounting plate away from the adjusting rod having a plurality of plug structures, and the length of the adjusting rod being adjustable.

[0006] According to the explosive fixing device of the embodiment of the utility model, by providing adjusting rods with adjustable lengths and mounting plates that can abut against and limit the inner wall of the blast hole, the device body can be fixed at the center position of the blast hole, and the explosive fixing device is not easy to slide, and the explosives can be stably fixed at the position required for blasting, improving the reliability of use of the explosive fixing device, making the degree of damage to the surrounding rock of the blast hole by the explosives uniform, so as to fully utilize the energy of the explosives, improve the success rate of blasting operations, and reduce blasting costs.

[0007] In an embodiment of the utility model, there are multiple groups of the adjusting rod groups, and the multiple groups of adjusting rod groups are arranged at intervals along the length direction of the device body.

[0008] In an embodiment of the present utility model, in the direction from the mounting plate close to the device body to away from the device body, the cross-sectional area of the plug structure gradually decreases, and the plug structure has the ability of elastic deformation.

[0009] In an embodiment of the present utility model, the adjusting rod includes: a first telescopic section and a second telescopic section. One end of the first telescopic section is clamped and connected to the device body. The mounting plate is connected to the end of the corresponding second telescopic section away from the device body. The second telescopic section and the first telescopic section are sleeved and arranged, and the second telescopic section can move relative to the first telescopic section along the length direction of the adjusting rod so that the length of the adjusting rod is adjustable.

[0010] In an embodiment of the present utility model, one of the first telescopic section and the second telescopic section has at least one first engaging portion, and the other of the first telescopic section and the second telescopic section has at least two second engaging portions. The first engaging portion can cooperate with any one of the second engaging portions to fix the first telescopic section and the second telescopic section.

[0011] In an embodiment of the present utility model, one of the first engaging portion and the second engaging portion is configured as a mating hole, and the other of the first engaging portion and the second engaging portion is configured as a mating protrusion.

[0012] In an embodiment of the present utility model, one end of the adjusting rod close to the device body has a plurality of first clamping portions. The first clamping portions pass through the side wall of the device body and are clamped with the device body.

[0013] In an embodiment of the present utility model, one end of the adjusting rod close to the device body also has at least one second clamping portion. The second clamping portion and the plurality of first clamping portions jointly define a clamping space. A part of the structure of the device body is located in the clamping space, and the wall thickness of the device body is adapted to the size of the clamping space.

[0014] In an embodiment of the present utility model, the explosive fixing device further includes: a protective layer. The protective layer is arranged inside the device body and covers the first clamping portion.

[0015] The explosive fixing assembly according to an embodiment of the present utility model includes the above-mentioned explosive fixing device. A plurality of the explosive fixing devices are arranged in sequence along the length direction of the device body. One of the explosive fixing devices defines a filling space with one end open and is located at the end, and the device body of this explosive fixing device has a through hole. The remaining explosive fixing devices define filling spaces with both ends open.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0017] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram of an explosive fixing device according to an embodiment of the present utility model;

[0019] Figure 2 is a partial schematic diagram of an explosive fixing device according to an embodiment of the present utility model;

[0020] Figure 3 is a schematic diagram of a first telescopic section and a second telescopic section according to an embodiment of the present utility model;

[0021] Figure 4 is a cross-sectional schematic diagram of an explosive fixing device according to an embodiment of the present utility model.

[0022] Reference Signs:

[0023] Device body 1; filling space 11; through hole 12; clamping hole 13;

[0024] Adjusting rod group 2; adjusting rod 21; first telescopic section 211; second matching part 2111; second telescopic section 212; first matching part 2121; first clamping part 213; second clamping part 214;

[0025] Mounting plate 3; plug structure 31;

[0026] Protective layer 4;

[0027] Explosive fixing device 100. Detailed Embodiments

[0028] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0029] Reference will be made below to Figures 1-4 describe an explosive fixing device 100 according to an embodiment of the present utility model and an explosive fixing assembly having the same.

[0030] As Figure 1 and Figure 2As shown in the figure, the explosive fixing device 100 according to an embodiment of the present utility model includes: a device body 1, an adjusting rod group 2, and a plurality of mounting plates 3. The device body 1 defines a filling space 11 for filling explosives and having one end open, or the device body 1 defines a filling space 11 for filling explosives and having both ends open. The adjusting rod group 2 includes a plurality of adjusting rods 21. One ends of the plurality of adjusting rods 21 are all connected to the device body 1 in a snap-fit manner and surround the device body 1. The number of the plurality of mounting plates 3 is the same as that of the plurality of adjusting rods 21 and they are in one-to-one correspondence. The mounting plate 3 is connected to the end of the corresponding adjusting rod 21 away from the device body 1, and the surface of the mounting plate 3 away from the adjusting rod 21 has a plurality of plug structures 31. The length of the adjusting rod 21 is adjustable.

[0031] Among them, the explosive fixing device 100 can be fixed in a blast hole. The device body 1 of the explosive fixing device 100 can be configured as a hollow cylinder. The device body 1 can define a filling space 11 for filling explosives and having one end open, or alternatively, the device body 1 can define a filling space 11 for filling explosives and having both ends open. The explosives in the filling space 11 can be detonated to break the rocks around the blast hole.

[0032] The device body 1 is connected to the adjusting rod group 2. The plurality of adjusting rods 21 of the adjusting rod group 2 are arranged around the device body 1. One ends of the plurality of adjusting rods 21 are all connected to the device body 1 in a snap-fit manner. The number of the plurality of mounting plates 3 is the same as that of the plurality of adjusting rods 21 and they are in one-to-one correspondence. The other ends of the plurality of adjusting rods 21 are all fixedly connected with a mounting plate 3. The surface of the mounting plate 3 away from the adjusting rod 21 has a plurality of plug structures 31. The plurality of plug structures 31 can all abut against and limit the inner wall of the blast hole. By providing the plug structures 31, the risk of the explosive fixing device 100 sliding during use can be effectively reduced, and the reliability of the explosive fixing device 100 in use can be improved.

[0033] The lengths of the plurality of adjusting rods 21 can all be adjusted so that the distances of the plurality of mounting plates 3 relative to the device body 1 can be adjusted. By adjusting the lengths of the plurality of adjusting rods 21, the device body 1 can be fixed at the central position of the blast hole. Since the device body 1 is fixed at the central position of the blast hole, the explosives placed in the device body 1 can be fixed at the central position of the blast hole. When the explosives are detonated, since the explosives are fixed at the central position of the blast hole, the degree of damage to the surrounding rock of the blast hole by the explosives can be uniform, so as to fully exert the energy of the explosives, improve the success rate of blasting operations, and reduce the blasting cost.

[0034] In some embodiments of the present application, the device body 1 can be made of PVC material. The PVC material has a low density, low cost, good sealing performance, convenient connection and good blasting effect. It can make the device body 1 lighter in weight, reduce the risk of the device body 1 sliding in the blast hole, reduce the risk of the explosive package being squeezed and damaged during the fixing process, enhance the blasting effect of the explosive fixing device 100, and is conducive to saving the blasting cost.

[0035] In some embodiments of the present application, the mounting plate 3 and the adjusting rod 21 can be integrally formed, and the mounting plate 3 and the insert block structure 31 can be integrally formed. The integrally formed part has good structural strength and can reduce the risk of fracture at the connection.

[0036] In some embodiments of the present application, the mounting plate 3 and the adjusting rod 21 can be separate parts, and the mounting plate 3 and the insert block structure 31 can be separate parts. By setting the mounting plate 3, the adjusting rod 21 and the insert block structure 31 as separate parts, the mounting plate 3, the adjusting rod 21 and the insert block structure 31 can be designed and manufactured separately, reducing the difficulty of design and manufacture.

[0037] In the above embodiments, by providing the adjusting rod 21 with adjustable length and the mounting plate 3 that can abut against and limit the inner wall of the blast hole, the device body 1 can be fixed at the central position of the blast hole, and the explosive fixing device 100 is not easy to slide. The explosive can be stably fixed at the position required for blasting, improving the reliability of use of the explosive fixing device 100, making the speed of the explosive explosion energy reaching the surrounding rock wall consistent, and making the degree of damage to the surrounding rock of the blast hole by the explosive uniform, so as to give full play to the explosive energy, improve the success rate of blasting operations and reduce the blasting cost.

[0038] In some embodiments of the present utility model, as Figure 1 shown, there are multiple groups of adjusting rod groups 2, and the multiple groups of adjusting rod groups 2 are arranged at intervals along the length direction of the device body 1.

[0039] Among them, there can be multiple groups of adjusting rod groups 2, and the number of the adjusting rod groups 2 can be, but is not limited to, two groups, three groups, four groups, etc. The multiple groups of adjusting rod groups 2 can be arranged at intervals along the length direction of the device body 1. The multiple groups of adjusting rod groups 2 can all adjust the position of the device body 1 in the blast hole to ensure that the device body 1 can be located at the center of the blast hole, so as to achieve the effect of uniform damage degree to the surrounding rock of the blast hole. And, the adjusting rods 21 in the multiple groups of adjusting rod groups 2 are all connected with the mounting plate 3. Such a setting can make there be adjusting rods 21 between multiple positions of the explosive fixing device 100 and the blast hole, and the multiple mounting plates 3 can support the device body 1 at multiple positions, reducing the deflection amount of the device body 1 and reducing the risk of the explosive fixing device 100 sliding, so that the explosive fixing device 100 is more stably fixed at the position required for blasting, improving the reliability of use of the explosive fixing device 100.

[0040] As a specific embodiment of the present application, as Figure 1 shown, the adjusting rod group 2 can be two groups, and each adjusting rod group 2 can include three adjusting rods 21. That is to say, the explosive fixing device 100 can have six adjusting rods 21. The three adjusting rods 21 of each adjusting rod group 2 can be evenly arranged around the device body 1. Such a setting can make the arrangement of the adjusting rod group 2 reasonable, and can adjust the spatial position of the device body 1 in the blast hole from multiple positions, so that the device body 1 can be located at the center of the blast hole, making the explosive fixing device 100 able to evenly damage the surrounding rock of the blast hole, so as to fully exert the explosive energy, improve the success rate of blasting operations, and reduce the blasting cost.

[0041] As a specific embodiment of the present application, as Figure 1 shown, each explosive fixing device 100 can be provided with six mounting plates 3. Such a setting can make the structure of the explosive fixing device 100 reasonable, can support the device body 1 at multiple positions, reduce the deflection amount of the device body 1, and reduce the risk of the explosive fixing device 100 sliding, so that the explosive fixing device 100 can be more stably fixed at the position required for blasting, and improve the reliability of use of the explosive fixing device 100.

[0042] In some embodiments of the present utility model, as Figure 1 and Figure 2 shown, from the direction of the mounting plate 3 close to the device body 1 to the direction away from the device body 1, the cross-sectional area of the plug structure 31 gradually decreases, and the plug structure 31 has the ability of elastic deformation.

[0043] Among them, the plug structure 31 can be constructed in the shape of a cone, a frustum of a cone or a triangular prism, etc. The plug structure 31 has the ability of elastic deformation. When the plug structure 31 abuts against the inner wall of the blast hole, the plug structure 31 can elastically deform (without plastic deformation) to closely abut against the inner wall of the blast hole. Such a setting can enhance the abutting stability between the explosive fixing device 100 and the inner wall of the blast hole.

[0044] From the direction of the mounting plate 3 close to the device body 1 to the direction away from the device body 1, the cross-sectional area of the plug structure 31 gradually decreases. That is to say, the end of the plug structure 31 close to the device body 1 has a larger contact area with the mounting plate 3 to improve the connection stability between the plug structure 31 and the mounting plate 3. The cross-sectional area of the end of the plug structure 31 away from the device body 1 is relatively small, so that the end of the plug structure 31 away from the device body 1 is more likely to elastically deform, so that the plug structure 31 can more closely abut against the inner wall of the blast hole, further reducing the risk of the explosive fixing device 100 sliding and improving the reliability of use of the explosive fixing device 100.

[0045] In some embodiments of the present utility model, as Figures 1-4As shown in the figure, the adjusting rod 21 includes a first telescopic section 211 and a second telescopic section 212. One end of the first telescopic section 211 is clamped and connected to the device body 1, the mounting plate 3 is connected to the end of the corresponding second telescopic section 212 away from the device body 1, the second telescopic section 212 and the first telescopic section 211 are sleeved, and the second telescopic section 212 can move relative to the first telescopic section 211 along the length direction of the adjusting rod 21, so that the length of the adjusting rod 21 is adjustable.

[0046] Among them, the adjusting rod 21 includes a first telescopic section 211 and a second telescopic section 212 which are sleeved. One end of the first telescopic section 211 can be clamped and connected to the device body 1, the mounting plate 3 can be connected to the end of the corresponding second telescopic section 212 away from the device body 1, the other end of the first telescopic section 211 can be connected to the end of the second telescopic section 212 close to the device body 1, and along the length direction of the adjusting rod 21, the second telescopic section 212 can move relative to the first telescopic section 211.

[0047] As some embodiments of the present application, both the first telescopic section 211 and the second telescopic section 212 can be set as circular tubes. The outer diameter of the second telescopic section 212 can be smaller than the inner diameter of the first telescopic section 211, and a part of the structure of the second telescopic section 212 can extend into the first telescopic section 211, so that the length of the adjusting rod 21 is adjustable. By adjusting the length of the adjusting rod 2, the device body 1 can be located at the center of the blast hole, and a plurality of mounting plates 3 can be abutted and limited against the inner wall of the blast hole, so that the explosive fixing device 100 can be fixed at the position required for blasting, and then the blasting operation can be completed. The adjusting rod 21 has a simple structure, convenient operation and low cost, which is beneficial to the progress of the blasting operation, makes the explosive fixing device 100 have good practicability and reliability, and makes the cost of the explosive fixing device 100 lower.

[0048] In some embodiments of the present invention, as Figure 3 shown, one of the first telescopic section 211 and the second telescopic section 212 has at least one first mating part 2121, and the other of the first telescopic section 211 and the second telescopic section 212 has at least two second mating parts 2111. The first mating part 2121 can cooperate with any one of the second mating parts 2111 to fix the first telescopic section 211 and the second telescopic section 212.

[0049] As a specific embodiment of the present application, as Figure 3As shown, the first telescopic joint 211 has two second mating parts 2111, the second telescopic joint 212 has one first mating part 2121, and the second mating part 2111 and the first mating part 2121 can be mated and connected to fix the relative positions of the first telescopic joint 211 and the second telescopic joint 212. Alternatively, the second mating part 2111 can be disengaged from the first mating part 2121 to adjust the relative positions of the first telescopic joint 211 and the second telescopic joint 212. The cooperation between the first mating part 2121 and the second mating parts 2111 at two different positions can make the adjusting rod 21 have different lengths, and thus the length of the adjusting rod 21 is adjustable. By providing at least one first mating part 2121 and at least two second mating parts 2111, the cooperation between the first mating part 2121 and the second mating parts 2111 at different positions can make the adjusting rod 21 have different lengths, and thus the length of the adjusting rod 21 is adjustable, so as to improve the reliability of the explosive fixing device 100 in use.

[0050] In some embodiments of the present invention, as Figure 3 shown, one of the first mating part 2121 and the second mating part 2111 is configured as a mating hole, and the other of the first mating part 2121 and the second mating part 2111 is configured as a mating protrusion.

[0051] As a specific embodiment of the present application, as Figure 3 shown, the first telescopic joint 211 can have two second mating parts 2111, the second mating part 2111 can be configured as a mating hole, the second telescopic joint 212 can have one first mating part 2121, the first mating part 2121 can be configured as a mating protrusion, and the mating protrusion can extend into the mating hole to fix the relative positions of the mating protrusion and the corresponding mating hole, so as to fix the relative positions of the first telescopic joint 211 and the second telescopic joint 212, and thus the size of the explosive fixing device 100 remains unchanged, so that the explosive fixing device 100 can be stably fixed in the blast hole. Moreover, the mating protrusion can be disengaged from the corresponding mating hole and can be mated and connected with the remaining mating holes to adjust the relative positions of the first telescopic joint 211 and the second telescopic joint 212, and thus the length of the adjusting rod 21 is adjustable, so as to improve the reliability of the explosive fixing device 100 in use.

[0052] In some embodiments of the present application, the mating protrusion can have the ability of elastic deformation, and the outer shape of the mating protrusion can be configured as a hemispherical shape. The hemispherical mating protrusion can move within the first telescopic joint 211 to cooperate with different mating holes, so as to adjust the relative positions of the first telescopic joint 211 and the second telescopic joint 212, and thus the length of the adjusting rod 21 is adjustable.

[0053] In some embodiments of the present invention, as Figure 2As shown, one end of the adjusting rod 21 close to the device body 1 has a plurality of first clamping portions 213, and the first clamping portions 213 penetrate through the side wall of the device body 1 and are clamped with the device body 1.

[0054] Among them, one end of the adjusting rod 21 close to the device body 1 can be provided with a plurality of first clamping portions 213, the side wall of the device body 1 can be constructed with a plurality of clamping holes 13, the number of the plurality of first clamping portions 213 and the plurality of clamping holes 13 is the same and they correspond to each other one by one. The first clamping portions 213 can penetrate through the clamping holes 13 on the side wall of the device body 1, and a part of the structure of the first clamping portions 213 can be in contact with the inner wall of the device body 1 to clamp the adjusting rod 21 to the device body 1. Such a setting can facilitate the installation of the adjusting rod 21 on the device body 1, and can make the manufacturing of the adjusting rod 21 simple and the cost low.

[0055] In some embodiments of the present invention, such as Figure 1 and as shown in 2 and Figure 4 As shown, one end of the adjusting rod 21 close to the device body 1 further has at least one second clamping portion 214. The second clamping portion 214 and the plurality of first clamping portions 213 jointly define a clamping space. A part of the structure of the device body 1 is located in the clamping space, and the wall thickness of the device body 1 is adapted to the size of the clamping space.

[0056] As some embodiments of the present application, the second clamping portion 214 can be constructed as an annular structure. The second clamping portion 214 and the plurality of first clamping portions 213 jointly define a clamping space. A part of the structure of the device body 1 can be located in the clamping space, so that the adjusting rod 21 can be stably and reliably fixedly connected to the device body 1. Moreover, the wall thickness of the device body 1 is adapted to the size of the clamping space to reduce the risk of the adjusting rod 21 shaking relative to the device body 1 and improve the use reliability of the explosive fixing device 100.

[0057] As some embodiments of the present application, such as Figure 2 As shown, there can be a plurality of second clamping portions 214. The number of the plurality of second clamping portions 214 and the plurality of first clamping portions 213 is the same and they correspond to each other one by one. The second clamping portion 214 and the corresponding first clamping portion 213 can jointly define a clamping space. The plurality of second clamping portions 214 and the plurality of first clamping portions 213 can jointly define a plurality of clamping spaces. A part of the structure of the device body 1 is located in the plurality of clamping spaces, so that the adjusting rod 21 can be stably and reliably fixedly connected to the device body 1. Moreover, the wall thickness of the device body 1 is adapted to the size of the clamping space to reduce the risk of the adjusting rod 21 shaking relative to the device body 1 and improve the use reliability of the explosive fixing device 100.

[0058] In some embodiments of the present invention, such as Figure 1 and as shown in 2 and Figure 4As shown in the figure, the explosive fixing device 100 further includes: a protective layer 4, which is arranged inside the device body 1 and covers the first clamping portion 213.

[0059] Among them, the protective layer 4 of the explosive fixing device 100 can be arranged inside the device body 1, the protective layer 4 can cover the first clamping portion 213, and the protective layer 4 can be used to protect the explosive in the filling space 11, so as to reduce the risk of the first clamping portion 213 squeezing the explosive, thereby being able to reduce the risk of the explosive failing or exploding, and improving the safety and reliability of the explosive fixing device 100.

[0060] As some embodiments of the present application, the material of the protective layer 4 can be, but is not limited to, rubber, sponge, etc.

[0061] According to the explosive fixing assembly of the embodiment of the present utility model, it includes a plurality of the above-mentioned explosive fixing devices 100, and the plurality of explosive fixing devices 100 are arranged in sequence along the length direction of the device body 1. One of the explosive fixing devices 100 defines a filling space 11 with one end open and is located at the end, and the device body 1 of this explosive fixing device 100 has a through hole 12, and the remaining explosive fixing devices 100 define filling spaces 11 with both ends open.

[0062] Among them, the explosive fixing assembly includes a plurality of explosive fixing devices 100. The plurality of explosive fixing devices 100 can be arranged in sequence along the length direction of the device body 1. One of the explosive fixing devices 100 can define a filling space 11 with one end open. This explosive fixing device 100 can be located at the end, and moreover, the open end of this explosive fixing device 100 faces the remaining explosive fixing devices 100. The remaining explosive fixing devices 100 can define filling spaces 11 with both ends open, so that the explosive fixing assembly as a whole presents a device in the shape of a circular tube with one end open. In this way, the accumulated water in the blast hole can be reduced from flowing into the filling space 11, the explosive can be protected, and the failure of the explosive can be prevented to ensure the blasting effect.

[0063] As Figure 1 shown, the device body 1 of the explosive fixing device 100 that defines a filling space 11 with one end open can have a through hole 12, and the initiating wire can be led out through the through hole 12, and the initiating wire can be connected to the initiator to realize the blasting operation.

[0064] By setting the adjusting rod 21 with adjustable length and the mounting plate 3 that can abut against and limit the inner wall of the blast hole, the device body 1 can be fixed at the center position of the blast hole, and the explosive fixing device 100 is not prone to sliding, so that the explosive can be stably fixed at the position required for blasting, improving the reliability of use of the explosive fixing device 100, making the speed at which the explosive energy reaches the surrounding rock wall consistent, and making the degree of damage to the surrounding rock of the blast hole by the explosive uniform, so as to give full play to the explosive energy, improve the success rate of blasting operations, and reduce the blasting cost.

[0065] The working process and principle of the explosive fixing component proposed by the present utility model: First, adjust the length of each adjusting rod 21 so that the device body 1 is at the center position of the blast hole. When the explosive fixing component is placed inside the blast hole, the plug structure 31 slides closely along the inner wall of the blast hole. Since the surface of the inner wall of the blast hole is uneven and rough, the plug structure 31 will abut against the inner wall of the blast hole to prevent the device body 1 from shifting during blasting. After that, the blast hole opening can be sealed with stemming to prevent the high-pressure gas formed when the explosive in the blast hole explodes from spraying out of the blast hole opening. Then, the explosive is detonated through the detonator and the detonation wire, thus achieving the blasting effect.

[0066] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0067] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features.

[0068] In the description of the present utility model, the meaning of "a plurality of" is two or more.

[0069] In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween.

[0070] In the description of the present utility model, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0071] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0072] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. An explosive fixing device (100), characterized in that, Comprising: A device body (1), the device body (1) defining a filling space (11) for filling explosives and being open at one end, or the device body (1) defining the filling space (11) for filling the explosives and being open at both ends; An adjusting rod group (2), the adjusting rod group (2) including a plurality of adjusting rods (21), one ends of the plurality of adjusting rods (21) being snap-connected to the device body (1) and surrounding the device body (1); A plurality of mounting plates (3), the number of the plurality of mounting plates (3) being the same as and corresponding to the number of the plurality of adjusting rods (21), the mounting plate (3) being connected to the end of the corresponding adjusting rod (21) away from the device body (1), and a plurality of plug structures (31) being provided on the surface of the mounting plate (3) away from the adjusting rod (21), and the length of the adjusting rod (21) being adjustable.

2. The explosive fixing device (100) according to claim 1, characterized in that, The adjusting rod group (2) is in multiple groups, and the multiple groups of adjusting rod groups (2) are arranged at intervals along the length direction of the device body (1).

3. The explosive fixing device (100) according to claim 1, characterized in that, From the direction where the mounting plate (3) is close to the device body (1) to the direction away from the device body (1), the cross-sectional area of the plug structure (31) gradually decreases, and the plug structure (31) has an elastic deformation ability.

4. The explosive fixing device (100) according to claim 1, characterized in that, The adjusting rod (21) includes: a first telescopic section (211) and a second telescopic section (212), one end of the first telescopic section (211) being snap-connected to the device body (1), the mounting plate (3) being connected to the end of the corresponding second telescopic section (212) away from the device body (1), the second telescopic section (212) and the first telescopic section (211) being sleeved and the second telescopic section (212) being able to move relative to the first telescopic section (211) along the length direction of the adjusting rod (21) so that the length of the adjusting rod (21) is adjustable.

5. The explosive fixing device (100) according to claim 4, characterized in that, One of the first telescopic section (211) and the second telescopic section (212) has at least one first mating part (2121), and the other of the first telescopic section (211) and the second telescopic section (212) has at least two second mating parts (2111), and the first mating part (2121) can cooperate with any one of the second mating parts (2111) to fix the first telescopic section (211) and the second telescopic section (212).

6. The explosive fixing device (100) according to claim 5, characterized in that, One of the first mating part (2121) and the second mating part (2111) is configured as a mating hole, and the other of the first mating part (2121) and the second mating part (2111) is configured as a mating protrusion.

7. The explosive fixing device (100) according to claim 1, characterized in that, One end of the adjusting rod (21) close to the device body (1) has a plurality of first clamping parts (213), and the first clamping parts (213) of the adjusting rod (21) penetrate through the side wall of the device body (1) and are snap-connected to the device body (1).

8. The explosive fixing device (100) according to claim 7, characterized in that, One end of the adjusting rod (21) close to the device body (1) further has at least one second clamping portion (214). The second clamping portion (214) and the plurality of first clamping portions (213) jointly define a clamping space, a part of the structure of the device body (1) is located in the clamping space, and the wall thickness of the device body (1) is adapted to the size of the clamping space.

9. The explosive fixing device (100) according to claim 7, characterized in that, Further comprising: A protective layer (4), the protective layer (4) is provided on the inner side of the device body (1) and covers the first clamping portion (213).

10. An explosive fixing component, characterized in that, Comprising a plurality of explosive fixing devices (100) according to any one of claims 1-9. The plurality of explosive fixing devices (100) are arranged in sequence along the length direction of the device body (1). One of the explosive fixing devices (100) defines the filling space (11) with one end open and is located at the end, and the device body (1) of this explosive fixing device (100) has a through hole (12). The remaining explosive fixing devices (100) define the filling space (11) with both ends open.

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