Explosive blasting supporting equipment based on vertical shaft excavation technology

Abstract

The utility model relates to explosive blasting supporting equipment based on a vertical shaft excavation technology, which comprises a supporting rod, the top surface of the supporting rod is used for supporting explosives, the lower end of the supporting rod is provided with a mounting rod, the mounting rod is hollow, the top surface of the mounting rod is provided with a through hole communicated with the inside of the mounting rod, and the mounting rod is internally provided with a fixing piece which can be detachably connected with the supporting rod. When blasting operation is finished, the damaged supporting rod can be detached for replacement, through the mode that the supporting rod and the mounting rod are separated, the mounting rod is not prone to being damaged during explosive blasting, and compared with the situation that in the prior art, the whole tool cannot be used due to damage of a supporting tool, the loss of the mounting rod is reduced, and the working efficiency is improved. And the loss degree of the whole device in the blasting operation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of shaft blasting technology, specifically to support equipment for explosive blasting based on shaft excavation technology. Background Technology

[0002] In underground mining, a series of ore passes are constructed within the mine development system to facilitate the transfer of ore and waste rock, especially the main ore pass near the main hoisting system. However, during production, deep ore passes frequently experience problems such as arching and blockage due to various reasons, including untimely ore discharge leading to prolonged accumulation and compaction of slag, high frequency of handling large blocks, the intrusion of long objects (such as timber or steel) into the ore pass, or failure to meet design specifications.

[0003] For a long time, since the blockage of manholes is generally located at a high position, the common method for handling manhole blockage accidents is blasting, which requires the use of support tools to support the explosives below the blockage before blasting.

[0004] However, the support tool holds up the explosive, and the explosive detonation can easily cause wear and tear or even damage to the support tool as a whole. Since the support tool is molded in one piece, when it is damaged, it will affect its overall use, so that the support tool needs to be replaced during a secondary detonation. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a support device for explosive blasting based on shaft excavation technology, so as to solve the problem that explosive blasting can easily cause wear and tear or even damage to the support tool as a whole. Since the support tool is integrally formed, when it is damaged, it will affect its overall use, so that the support tool needs to be replaced during secondary blasting.

[0006] This utility model is achieved through the following technical solution:

[0007] A support device for explosive blasting based on shaft excavation technology includes a support rod that supports the explosive on its top surface, an installation rod at the lower end of the support rod, the installation rod being hollow and having an opening on its top surface communicating with its interior, and a fixing component that can be detachably connected to the support rod inside the installation rod.

[0008] Further defined, the fastener includes a fixing plate and two snap-fit ​​plates. The fixing plate is fixedly connected to the inner wall of the mounting rod. The two snap-fit ​​plates are installed opposite each other on the top surface of the fixing plate. Each of the two snap-fit ​​plates has a protrusion on its opposite side.

[0009] The lower end of the support rod is provided with slots on opposite sides for inserting two protrusions, and the two protrusions are respectively located on the sliding tracks of the two slots.

[0010] Further specifying, the fixing component also includes a movable plate and a first spring, wherein the movable plate, the first spring and the fixed plate are sequentially installed inside the mounting rod along the direction from the opening toward the inside of the mounting rod, and the two ends of the first spring are respectively connected to the opposite side of the movable plate and the fixed plate;

[0011] The movable plate has through holes on its opposite sides for two snap-fit ​​plates to pass through. The upper ends of the two snap-fit ​​plates extend at an angle that is relatively far apart. The upper ends of the snap-fit ​​plates extend through the through holes to the top of the movable plate. The opposite sides of the two through holes abut against the opposite sides of the two snap-fit ​​plates.

[0012] Further defined, the opposite side of the two protrusions is an inclined surface, the lower ends of the two inclined surfaces extend inclinedly in a relatively close direction, and the inclined surfaces are located on the sliding trajectory at the connection between the bottom surface and the side surface of the support rod.

[0013] Furthermore, the support rod is hollow, and both its top and bottom surfaces are provided with through holes communicating with its interior.

[0014] Further defining the feature, the top surface of the support rod is provided with a basin, the basin wall extends away from the support rod, and the basin is provided with a connecting hole communicating with the through hole.

[0015] Further specified, the bottom surface of the mounting rod is provided with a base, and the base is provided with a rotating seat that is rotatably connected to the mounting rod. The rotating seat is rotatably connected to one side of the mounting rod through a rotating shaft and a torsion spring.

[0016] The top surface of the base is also provided with a receiving groove extending along its thickness direction, and a second spring and a pin are provided in the receiving groove. The bottom surface of the mounting rod is provided with a slot, and the pin is located on the rotation trajectory of the slot.

[0017] Further specified, the interior of the mounting rod is connected vertically to the slot, a piston plate is provided inside the mounting rod between the fixed plate and the slot, a connecting rod is provided on the top surface of the piston plate, and the upper end of the connecting rod passes through the fixed plate and connects to the movable plate.

[0018] Furthermore, the radius of the slot is smaller than the radius of the internal space of the mounting rod.

[0019] Further specified, the bottom surface of the base is provided with a pin, the upper end of the pin is connected to the bottom surface of the base, and the lower end extends obliquely toward the downward extension line of the mounting rod.

[0020] The beneficial effects of this utility model are as follows:

[0021] When the blasting operation is completed, the damaged support rod can be removed and replaced. By separating the support rod and the mounting rod, the mounting rod is less likely to be damaged during the blasting. Compared with the existing technology where the support tool is damaged and the entire tool becomes unusable, this application reduces the wear and tear on the mounting rod, thereby reducing the overall wear and tear on the device during the blasting operation.

[0022] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention (first perspective).

[0024] Figure 2 This is a schematic diagram of the internal structure of the mounting rod of this utility model;

[0025] Figure 3 This is a partial structural schematic diagram of the present invention.

[0026] In the picture:

[0027] 1. Support rod; 101. Slot; 2. Mounting rod; 3. Fixing plate; 301. Snap-fit ​​plate; 302. Protrusion; 4. Movable plate; 401. First spring; 402. Perforation; 5. Basin; 6. Base; 601. Rotating seat; 7. Piston plate; 701. Connecting rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0033] Please see Figure 1-3 This utility model provides a technical solution: a support device for explosive blasting based on shaft excavation technology, including a support rod 1 that supports explosives on the top surface, an installation rod 2 provided at the lower end of the support rod 1, the installation rod 2 being hollow and having an opening on its top surface communicating with its interior, and a fixing component that can be detachably connected to the support rod 1 provided inside the installation rod 2.

[0034] In operation, the explosive is first attached to the top surface of support rod 1 using adhesive or other methods. Then, support rod 1 is connected to mounting rod 2 via a detachable connection with a fixing component. This increases the overall length of support rod 1 and mounting rod 2 and facilitates disassembly of support rod 1. The top surface of support rod 1 is then placed on the bottom surface of the blocked chute location, and the explosive is detonated to complete the blasting operation. After the blasting is completed, support rod 1 and mounting rod 2 can be disassembled to remove and replace any damaged support rod 1.

[0035] When using the support equipment for explosive blasting based on shaft excavation technology in this utility model to support explosives, the damaged support rod 1 can be removed and replaced when the blasting operation is completed. By separating the support rod 1 and the mounting rod 2, the mounting rod 2 is less likely to be damaged during explosive blasting. Compared with the existing technology where the support tool is damaged and the entire tool becomes unusable, this application reduces the wear and tear on the mounting rod 2, thereby reducing the overall wear and tear on the device during blasting operations.

[0036] In this embodiment, the fastener includes a fixing plate 3 and two snap-fit ​​plates 301. The fixing plate 3 is fixedly connected to the inner wall of the mounting rod 2. The two snap-fit ​​plates 301 are installed opposite each other on the top surface of the fixing plate 3. Each of the two snap-fit ​​plates 301 has a protrusion 302 on its opposite side.

[0037] The lower end of the support rod 1 is provided with slots 101 on opposite sides for inserting two protrusions 302, and the two protrusions 302 are respectively located on the sliding tracks of the two slots 101.

[0038] The snap-fit ​​plate 301 is made of elastic plastic or other elastic material. The distance between the two snap-fit ​​plates 301 is less than the radius of the support rod 1. When the support rod 1 is inserted into the mounting rod 2 and is located between the two snap-fit ​​plates 301, the distance between the two snap-fit ​​plates 301 is less than the radius of the support rod 1, causing the support rod 1 to press the two snap-fit ​​plates 301 in a relatively far-away direction. Under the elastic force of the two snap-fit ​​plates 301, the two snap-fit ​​plates 301 elastically store energy and cause the two snap-fit ​​plates 301 to drive the two protrusions 302 to maintain a relatively close pushing trend.

[0039] In use, the lower end of the support rod 1 is inserted into the mounting rod 2 and between the two snap-fit ​​plates 301. As it continues to slide, the two slots 101 are aligned laterally with the two protrusions 302 respectively. At this time, under the elastic force of the two snap-fit ​​plates 301, the two protrusions 302 are inserted into the two slots 101, so that the mounting rod 2 and the support rod 1 can be detachably connected through the cooperation of the two protrusions 302 and the two slots 101.

[0040] In this embodiment, the fixing component further includes a movable plate 4 and a first spring 401. The movable plate 4, the first spring 401 and the fixed plate 3 are sequentially installed in the mounting rod 2 along the direction of the opening toward the inside of the mounting rod 2. The two ends of the first spring 401 are respectively connected to the opposite side of the movable plate 4 and the fixed plate 3.

[0041] The movable plate 4 has through holes 402 on opposite sides for two snap-fit ​​plates 301 to pass through. The upper ends of the two snap-fit ​​plates 301 extend at an angle away from each other. The upper ends of the snap-fit ​​plates 301 extend through the through holes 402 to the top of the movable plate 4. The opposite sides of the two through holes 402 abut against the opposite sides of the two snap-fit ​​plates 301.

[0042] In this design, the first spring 401 is in a naturally extended state, and its end moves toward the support rod 1 by means of elastic force against the movable part.

[0043] When in use, when the support rod 1 is inserted into the mounting rod 2, the support rod 1 presses the movable plate 4, causing the movable plate 4 to move downward until the protrusion 302 and the slot 101 engage. At this time, the first spring 401 is compressed by the movable plate 4 and is in an elastic energy storage state. At the same time, the two perforations 402 on the movable plate 4 are close to each other on the side that are close to each other, respectively, and the two engaging plates 301 are respectively abutted. As the movable plate 4 is pressed by the support rod 1, the distance between the movable plate 4 and the fixed plate 3 is shortened. At the same time, the first spring 401 is compressed by the movable plate 4 and contracts and elastically stores energy. Under the action of elastic force, the first spring 401 always pushes the movable plate 4 in the direction of the support rod 1, thereby increasing the engaging effect of the protrusion 302 and the slot 101.

[0044] When the operator manually disassembles the support rod 1, the support rod 1 is further inserted into the mounting rod 2. Since the snap-fit ​​plate 301 is installed at an angle, when the movable plate 4 moves downward, the side of the two through holes 402 on the movable plate 4 that are close to each other presses against the opposite side of the two snap-fit ​​plates 301, causing the two snap-fit ​​plates 301 to move in a relatively distant direction. This causes the two protrusions 302 to move synchronously in a relatively distant direction. As the support rod 1 continues to be inserted, the slot 101 on the support rod 1 and the protrusion 302 are longitudinally misaligned. At this time, the support rod 1 is released from its fixed state. Then, the operator rotates the support rod 1, causing the slot 101 and the protrusion 302 to be misaligned longitudinally and laterally. At this time, the operator releases the push on the support rod 1, and the first spring 401 releases its elastic force to push the support rod 1 out of the mounting rod 2.

[0045] In this embodiment, the opposite side of the two protrusions 302 is an inclined surface, and the lower ends of the two inclined surfaces extend inclinedly in a relatively close direction. The inclined surfaces are located on the sliding trajectory at the connection between the bottom surface and the side surface of the support rod 1.

[0046] When the support rod 1 is inserted into the mounting rod 2, the side of the support rod 1 away from the explosive first abuts against the two inclined surfaces opposite the two protrusions 302. As the support rod 1 is further inserted, under the action of the thrust, the support rod 1 and the inclined surfaces cooperate to squeeze the two protrusions 302 out in a relatively far direction. At this time, the snap plate 301 elastically stores energy, and the two protrusions 302 abut against the two opposite sides of the support rod 1 under the elastic force of the two snap plates 301. Therefore, when the support rod 1 is inserted into the mounting rod 2 until the slot 101 and the protrusion 302 are aligned, the protrusion 302 is inserted into the slot 101 under the elastic force of the snap plate 301. Furthermore, the friction between the protrusion 302 and the slot 101, as well as the elastic force of the snap plate 301, make it difficult for the protrusion 302 to detach from the slot 101 without the assistance of external force, thus fixing the support rod 1 and the mounting rod 2.

[0047] In this embodiment, the support rod 1 is hollow, and both the top and bottom surfaces are provided with through holes communicating with its interior.

[0048] When the support rod 1 is inserted into the mounting rod 2 and the two are fixed by the protrusion 302 and the slot 101, the through hole on the bottom surface of the support rod 1 abuts against the top surface of the movable plate 4.

[0049] In use, after the support rod 1 and the mounting rod 2 are installed, the upper end of the support rod 1 is moved to the position below the blockage of the chute and blasted. The impact force generated by the blast passes through the top surface, interior and bottom surface of the support rod 1 in sequence and then squeezes the top surface of the movable plate 4, causing the movable plate 4 to move away from the support rod 1. That is, the movable plate 4 moves downward and squeezes the two snap-fit ​​plates 301 on the opposite side of the two perforations 402 on the movable plate 4, causing the two snap-fit ​​plates 301 to move away from each other. This causes the two protrusions 302 to move synchronously away from each other, disassembling the support rod 1 and the mounting rod 2. In this way, the impact force generated by the blast is used as a power source to cause the support rod 1 and the mounting rod 2 to separate.

[0050] In this embodiment, a basin 5 is provided on the top surface of the support rod 1, the basin wall of the basin 5 extends away from the support rod 1, and a connecting hole communicating with the through hole is provided on the basin 5.

[0051] When in use, before blasting, the blasting personnel put the explosive into the basin 5, and then put the top surface of the basin 5 against the bottom surface of the chute blockage position, using the chute blockage position as the top surface of the basin 5, to reduce the outward pressure leakage of the explosive in the basin 5 when it explodes, and to cause most of the impact force to enter the support rod 1 through the connecting hole on the main body and the through hole.

[0052] In this embodiment, a base 6 is provided on the bottom surface of the mounting rod 2, and a rotating seat 601 is provided on the base 6 and rotatably connected to the mounting rod 2. The rotating seat 601 is rotatably connected to one side of the mounting rod 2 through a rotating shaft and a torsion spring.

[0053] The top surface of the base 6 is also provided with a receiving groove extending along its thickness direction. A second spring and a pin are provided in the receiving groove. The bottom surface of the mounting rod 2 is provided with a slot, and the pin is located on the rotation trajectory of the slot.

[0054] In its naturally extended state, the torsion spring causes the mounting rod 2 to rotate counterclockwise around the rotating seat 601 (rotation direction is...). Figure 1 (For example, please refer to the example below).

[0055] When the second spring is in its naturally extended state, it pushes the pin away from the slot.

[0056] In use, the operator rotates the mounting rod 2 clockwise, causing it to rotate perpendicular to the base 6. During rotation, the bottom surface of the mounting rod 2 abuts against the upper end of the pin, and as the mounting rod 2 rotates, it pushes the pin into the receiving groove. At the same time, the second spring stores elastic energy. When the mounting rod 2 rotates to be perpendicular to the base 6, the pin and the slot are aligned vertically. At this time, the second spring releases its elastic force to push the pin into the slot. At this time, the upper and lower ends of the pin are located in the slot and the receiving groove, respectively. Under the tension of the torsion spring, the side wall of the slot abuts against the outer wall of the pin, and the mounting rod 2 is fixed by the friction between the two.

[0057] In this embodiment, the interior of the mounting rod 2 is connected to the slot vertically. A piston plate 7 is provided inside the mounting rod 2 between the fixed plate 3 and the slot. A connecting rod 701 is provided on the top surface of the piston plate 7. The upper end of the connecting rod 701 passes through the fixed plate 3 and is connected to the movable plate 4.

[0058] The piston plate 7 divides the interior of the mounting rod 2 into a first chamber and a second chamber that are adjacent to each other. The outer wall of the piston rod is provided with an air hole that communicates with the first chamber. The second chamber is connected to the slot. When the pin is inserted into the slot, the outer wall of the pin abuts against the inside of the slot.

[0059] In practical use, when the movable plate 4 is subjected to explosive impact and slides away from the support rod 1, the movable plate 4 drives the piston plate 7 to move downward synchronously through the connecting rod 701. In this way, the piston plate 7 squeezes the second chamber, and the internal pressure of the second chamber increases due to the compression. When the pressure in the second chamber is greater than the elastic force of the second spring, the pin gradually moves towards the direction of the receiving groove. In this way, the pin is pushed out of the slot by increasing the pressure inside the second chamber.

[0060] The above process is completed at the moment of blasting. That is, when the explosive detonates, the impact force pushes the movable plate 4 to cause the support rod 1 and the mounting rod 2 to separate and release the vertical connection between the mounting rod 2 and the base 6. When the mounting rod 2 is released from the vertical connection with the base 6, due to the loss of the fixation of the pin and slot, the mounting rod 2 is caused to rotate counterclockwise instantaneously under the elastic force of the torsion spring. Since the support rod 1 and the mounting rod 2 are separated, the centrifugal force generated by the rotation of the mounting rod 2 can throw the support rod 1 out of the mounting rod 2.

[0061] In this embodiment, the radius of the slot is smaller than the radius of the internal space of the mounting rod 2.

[0062] In this embodiment, a pin is provided on the bottom surface of the base 6. The upper end of the pin is connected to the bottom surface of the base 6, and the lower end extends obliquely toward the downward extension line of the mounting rod 2.

[0063] In practical use, before blasting, the pins on the bottom surface of the base 6 are inserted into the bottom surface to effectively improve the stability of the device during the overall blasting process.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A support device for explosive blasting based on shaft excavation technology, comprising a support rod (1) supporting the explosive on its top surface, characterized in that: The lower end of the support rod (1) is provided with an installation rod (2). The installation rod (2) is hollow and has an opening on its top surface that communicates with its interior. The installation rod (2) is provided with a fastener that can be detachably connected to the support rod (1).

2. The support equipment for explosive blasting based on shaft excavation technology according to claim 1, characterized in that: The fastener includes a fixing plate (3) and two snap-fit ​​plates (301). The fixing plate (3) is fixedly connected to the inner wall of the mounting rod (2). The two snap-fit ​​plates (301) are installed opposite each other on the top surface of the fixing plate (3). Each of the two snap-fit ​​plates (301) has a protrusion (302) on its opposite side. The lower end of the support rod (1) is provided with slots (101) on opposite sides for inserting two protrusions (302), and the two protrusions (302) are respectively located on the sliding trajectory of the two slots (101).

3. The support equipment for explosive blasting based on shaft excavation technology according to claim 2, characterized in that: The fastener also includes a movable plate (4) and a first spring (401). The movable plate (4), the first spring (401) and the fixed plate (3) are installed in the mounting rod (2) in sequence along the direction of the opening toward the inside of the mounting rod (2). The two ends of the first spring (401) are respectively connected to the opposite side of the movable plate (4) and the fixed plate (3). The movable plate (4) has through holes (402) on its opposite sides for two snap-fit ​​plates (301) to pass through. The upper ends of the two snap-fit ​​plates (301) extend at an angle away from each other. The upper ends of the snap-fit ​​plates (301) pass through the through holes (402) and extend to the top of the movable plate (4). The opposite sides of the two through holes (402) abut against the opposite sides of the two snap-fit ​​plates (301).

4. The support equipment for explosive blasting based on shaft excavation technology according to claim 2, characterized in that: The two protrusions (302) have an inclined surface on their opposite sides. The lower ends of the two inclined surfaces extend inclinedly in a relatively close direction. The inclined surfaces are located on the sliding trajectory at the connection between the bottom surface and the side surface of the support rod (1).

5. The support equipment for explosive blasting based on shaft excavation technology according to claim 1 or 2, characterized in that: The support rod (1) is hollow, and both the top and bottom surfaces are provided with through holes that communicate with its interior.

6. The support equipment for explosive blasting based on shaft excavation technology according to claim 5, characterized in that: The top surface of the support rod (1) is provided with a basin (5), the basin wall of the basin (5) extends away from the support rod (1), and the basin (5) is provided with a connecting hole communicating with the through hole.

7. The support equipment for explosive blasting based on shaft excavation technology according to any one of claims 1-3, characterized in that: The bottom surface of the mounting rod (2) is provided with a base (6), and a rotating seat (601) rotatably connected to the mounting rod (2) is provided on the base (6). The rotating seat (601) is rotatably connected to one side of the mounting rod (2) through a rotating shaft and a torsion spring. The top surface of the base (6) is also provided with a receiving groove extending along its thickness direction, and a second spring and a pin are provided in the receiving groove. The bottom surface of the mounting rod (2) is provided with a slot, and the pin is located on the rotation trajectory of the slot.

8. The support equipment for explosive blasting based on shaft excavation technology according to claim 7, characterized in that: The interior of the mounting rod (2) is connected to the slot vertically. A piston plate (7) is provided inside the mounting rod (2) between the fixed plate (3) and the slot. A connecting rod (701) is provided on the top surface of the piston plate (7). The upper end of the connecting rod (701) passes through the fixed plate (3) and is connected to the movable plate (4).

9. The support equipment for explosive blasting based on shaft excavation technology according to claim 8, characterized in that: The radius of the slot is smaller than the radius of the internal space of the mounting rod (2).

10. The support equipment for explosive blasting based on shaft excavation technology according to claim 7, characterized in that: The bottom surface of the base (6) is provided with a pin, the upper end of which is connected to the bottom surface of the base (6), and the lower end extends obliquely toward the downward extension line of the mounting rod (2).

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