A high-steep slope precision-controlled blasting device and blasting method

Abstract

This invention discloses a precision-controlled blasting device and method for steep slopes, comprising a mounting box. The upper surface of the mounting box has a groove, and a limiting frame is installed on the inner wall of the groove. Two first springs connect the bottom surface of the groove to the lower surface of the limiting frame. This precision-controlled blasting device and method for steep slopes, through the limiting frame, allows the explosive charge to be placed during operation. A fixed cover then seals and protects the explosive charge, reducing the impact of external liquids such as rainwater and filling blockages on the explosive charge's efficacy. After the fixed cover is installed, buffer blocks on its inner wall adhere and limit the explosive charge, preventing it from shifting or sliding upon impact. Furthermore, the elasticity of the buffer blocks absorbs the impact force received by the explosive charge, reducing damage and ensuring operational stability.

Description

Technical Field

[0001] This invention relates to the field of slope blasting technology, specifically to a precision-controlled blasting device and blasting method for steep slopes. Background Technology

[0002] To ensure the stability of the roadbed, slopes with a certain gradient are formed on both sides of the roadbed. In mountainous highway engineering, blasting construction technology is mainly used for the excavation of rock road cuts. Among them, the roadbed slope alignment control mainly adopts pre-splitting or smooth blasting. When constructing slopes, blasting is generally used to pre-treat the slopes in order to achieve the effect of rapid overall slope formation.

[0003] Existing slope blasting devices involve placing the explosive charge in a protective box, which is then placed into a pre-dug hole for wiring. However, the protective box is prone to tilting during placement, causing the internal explosive charge to shift and hindering subsequent use. Furthermore, the stability of the protective box is further affected by the impact of sand and gravel during the filling and sealing of the blasting hole. The sand and gravel can also pull on the detonating wire during filling, greatly increasing the probability of damage or breakage of the detonating wire at one end of the protective box, thus reducing its practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a precision-controlled blasting device and blasting method for steep slopes, in order to solve the problems mentioned in the background art, such as the easy displacement of the internal explosive charge when the protective box is placed and the easy damage and breakage of the detonating wire when the sand and gravel are used to fill the blasting hole.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision controlled blasting device for steep slopes, comprising a mounting box, wherein the upper surface of the mounting box is provided with a groove, and a limiting frame is installed on the inner wall of the groove of the mounting box, and two first springs are connected between the bottom surface of the groove of the mounting box and the lower surface of the limiting frame, wherein the surface of the limiting frame is provided with a groove, and an explosive charge is placed on the inner wall of the groove of the limiting frame, wherein a fixing cover plate is provided on the upper surface of the mounting box, and two connecting columns are embedded in the surface of the mounting box, and a second spring is connected between the mounting box and the connecting columns;

[0006] A locking mechanism is provided on the surface of the connecting column and the inner wall of the mounting box, and is used to lock the device to prevent it from loosening;

[0007] The locking mechanism includes:

[0008] A limiting groove is opened on the side surface of the connecting column facing the limiting frame; two linkage blocks are embedded in the inner wall of the mounting box groove; a third spring is connected between the linkage blocks and the mounting box; two locking grooves are opened on the lower side surface of the limiting frame; and two positioning pins are embedded in the lower side surface of the fixed cover plate.

[0009] A protective mechanism is provided on the upper side surface of the fixed cover and inside the fixed cover, and is used to protect the detonation part of the device;

[0010] The protective mechanism includes:

[0011] Two mounting slots are provided on the lower surface of the limit frame; two protective sleeves are embedded in the upper side surface of the limit frame; a fixing plate is fixed on the top surface of the opening of the protective sleeve; a support column is embedded in the lower surface of the protective sleeve; a clamping plate is fixed on the upper surface of the support column; and a fourth spring is connected between the lower surface of the clamping plate and the bottom surface of the opening of the protective sleeve.

[0012] Preferably, the mounting box and the limiting frame are slidably connected, the side surface of the explosive charge is provided with a lead wire frame, and one end of the detonating wire is fixedly connected to the surface of the lead wire frame of the explosive charge. The lower end of the fixing cover is provided with a groove, and the top surface of the groove of the fixing cover is uniformly provided with buffer rubber blocks.

[0013] Preferably, one end of each of the two detonating wires is connected to a detonator, the buffer block is hemispherical, and the lower surface of the buffer block is in contact with the upper surface of the explosive charge. The lower surfaces of both ends of the fixing cover are provided with slots.

[0014] Preferably, the connecting column and the mounting box form a sliding connection, and the upper end of the connecting column extends into the slot on the surface of the fixed cover plate, and a positioning groove is provided on the side surface of the upper end of the connecting column, and the lower end of the limiting groove facing the surface of the limiting frame is designed to be inclined.

[0015] Preferably, both ends of the linkage block are arc-shaped, and the linkage block and the mounting box are slidably connected. The width of the locking groove is smaller than the width of the linkage block. The positioning pin is slidably connected to the mounting box, and the positioning pin is engagingly connected to the connecting post.

[0016] Preferably, the lower inner wall of the mounting groove is inclined, the mounting groove is L-shaped, and the inner wall of the mounting groove is arc-shaped. The inner diameter of the opening on the surface of the protective sleeve is the same as the inner diameter of one end of the mounting groove.

[0017] Preferably, both the fixing plate and the clamping plate are arc-shaped, and the clamping plate and the protective sleeve are slidably connected, and the support column and the mounting box are slidably connected.

[0018] A blasting method includes: a precision-controlled blasting device for steep slopes and the following steps:

[0019] S1: First, use engineering machinery to excavate a stepped plane on the steep slope that needs to be repaired. Then, grooves are made on the plane as needed to facilitate the precise control of the placement of blasting devices on the steep slope.

[0020] S2: Place the mounting box in the groove, and then place the explosive charge in the groove of the limiting frame;

[0021] S3: Pass the detonating wires on both sides of the explosive charge through the mounting slots and protective sleeves on the surface of the fixed cover plate, and then press the fixed cover plate down to connect with the mounting box;

[0022] S4: Insert the upper end of the connecting column into the slot on the surface of the fixed cover plate, so that the connecting column pushes the support column and the clamping plate to clamp and fix the detonating wire.

[0023] S5: By pushing the connecting column down through the fixed cover plate, the limiting groove on the surface of the connecting column pushes the linkage block to slide, thereby releasing the limiting frame to facilitate the sliding of the explosive charge.

[0024] S6: By connecting the detonating wire, one end of the detonating wire is connected to the detonator, and the explosive charge is detonated in a controlled manner through the detonator and the detonating wire.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the precise control blasting device and blasting method for steep slopes:

[0026] 1. The limiting frame allows the explosive charge to be placed during operation, and then the fixed cover plate seals and protects the explosive charge, reducing the impact of external liquids such as rainwater and filler blockages on the explosive charge's efficacy. After the fixed cover plate is installed, the buffer rubber block on its inner wall fits and limits the explosive charge, preventing it from shifting or sliding when the device is impacted. Furthermore, the elasticity of the buffer rubber block itself buffers and absorbs the impact force received by the explosive charge, reducing damage to the explosive charge and ensuring operational stability.

[0027] 2. The clamping plate in the protective mechanism supports the detonating wire when the device is sealed after placement, reducing the risk of damage to the detonating wire and the fixed cover plate due to compression. The sliding of the clamping plate also clamps and fixes the detonating wire, improving its stability during sealing. This helps ensure the normal operation of the detonating wire, reduces the entry of external impurities into the device through the opening of the protective sleeve, and effectively protects the explosive charge from damage.

[0028] 3. The connecting column allows the device to slide down by pushing the connecting column with the fixed cover plate when installing the explosive charge. This loosens the linkage block, making it easier for the limit frame to lower the explosive charge, thus improving the stability of the explosive charge installation. Furthermore, the connecting column is locked in place by the positioning pin, improving the efficiency of the device in installing the explosive charge. The connecting column also pushes the support column, which in turn drives the clamping plate to automatically clamp and fix the detonating wire, improving the practicality of the device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall front sectional structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the overall top sectional structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the overall side structure of the present invention;

[0032] Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0033] Figure 5 This is a three-dimensional structural diagram of the connection between the mounting box and the connecting column of the present invention;

[0034] Figure 6 This is a three-dimensional structural diagram of the connection between the limiting groove and the linkage block of the present invention.

[0035] In the diagram: 1. Mounting box; 2. Limiting bracket; 3. First spring; 4. Explosive charge; 5. Detonating wire; 6. Fixing cover plate; 7. Connecting column; 8. Second spring; 9. Buffer block; 1001. Limiting groove; 1002. Linkage block; 1003. Third spring; 1004. Locking groove; 1005. Positioning pin; 1101. Mounting through groove; 1102. Protective sleeve; 1103. Fixing plate; 1104. Support column; 1105. Clamping plate; 1106. Fourth spring; 12. Detonator. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] This application provides a precision controlled blasting device and blasting method for steep slopes. The device and method place the explosive charge 4 in a mounting box 1 and a limiting frame 2, then protect the mounting box 1 and the explosive charge 4 with a fixing cover plate 6, and fix the device with a connecting column 7 and a locking mechanism. Then, the detonating wire 5 is clamped and fixed by a protective mechanism to improve the protection effect of the detonating wire 5. Finally, the explosive charge 4 is detonated by the detonator 12 and the detonating wire 5, thereby carrying out slope blasting.

[0038] The following provides a detailed description of the precision-controlled blasting device and blasting method for steep slopes. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0039] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0040] Please see Figure 1-6 In this embodiment, a high and steep slope precision control blasting device is provided, including: a mounting box 1, the upper surface of the mounting box 1 is provided with a groove, and a limit frame 2 is installed on the inner wall of the groove of the mounting box 1. Two first springs 3 are connected between the bottom surface of the groove of the mounting box 1 and the lower surface of the limit frame 2. The surface of the limit frame 2 is provided with a groove, and an explosive charge 4 is placed on the inner wall of the groove of the limit frame 2. A fixing cover plate 6 is provided on the upper surface of the mounting box 1, and two connecting posts 7 are embedded in the surface of the mounting box 1. A second spring 8 is connected between the mounting box 1 and the connecting posts 7.

[0041] A blasting method, comprising a precision-controlled blasting device for steep slopes and the following steps:

[0042] S1: First, use engineering machinery to excavate a stepped plane on the steep slope that needs to be repaired. Then, grooves are made on the plane as needed to facilitate the precise control of the placement of blasting devices on the steep slope.

[0043] S2: Place the mounting box 1 in the groove, and then place the explosive charge 4 in the groove of the limiting frame 2;

[0044] S3: Pass the detonating wires 5 on both sides of the explosive charge 4 through the mounting slots 1101 and protective sleeves 1102 on the surface of the fixed cover plate 6, and then press down the fixed cover plate 6 to connect with the mounting box 1.

[0045] S4: Insert the upper end of the connecting post 7 into the slot on the surface of the fixed cover plate 6, so that the connecting post 7 pushes the support post 1104 and the clamping plate 1105 to clamp and fix the detonating wire 5.

[0046] S5: By fixing the cover plate 6, the connecting column 7 is pushed down, so that the limiting groove 1001 on the surface of the connecting column 7 pushes the linkage block 1002 to slide, thereby releasing the limiting frame 2 to facilitate the sliding of the explosive charge 4.

[0047] S6: By connecting the detonating wire 5, one end of the detonating wire 5 is connected to the detonator 12, and the explosive charge 4 is detonated in a controlled manner through the detonator 12 and the detonating wire 5.

[0048] In this embodiment, the precision control blasting device and blasting method for steep slopes mainly includes a mounting box 1, a limiting frame 2, a first spring 3, an explosive charge 4, a detonating wire 5, a fixing cover plate 6, a connecting column 7, a second spring 8, a buffer block 9, a detonator 12, a locking mechanism, and a protective mechanism. The precision control blasting device and blasting method for steep slopes provided in this solution involves placing the explosive charge 4 in the groove of the limiting frame 2, and then passing the detonating wires 5 on both sides of the explosive charge 4 through the mounting slots 1101 on the surface of the fixing cover plate 6. The protective cover 1102 is then pressed down and connected to the mounting box 1. The upper end of the connecting column 7 extends into the fixed cover 6 and is fixed by the positioning pin 1005. The sliding of the connecting column 7 drives the linkage block 1002 to slide, so that the linkage block 1002 can release the limit frame 2 and drive the explosive charge 4 to slide down. The upper end of the connecting column 7 pushes the support column 1104 and the clamping plate 1105 to clamp and fix the detonating wire 5. Finally, the explosive charge 4 is detonated by the detonator 12 and the detonating wire 5.

[0049] In some embodiments, the locking mechanism includes: a limiting groove 1001 formed on the side surface of the connecting post 7 facing the limiting frame 2; two linkage blocks 1002 embedded in the inner wall of the groove of the mounting box 1; a third spring 1003 connected between the linkage block 1002 and the mounting box 1; two locking grooves 1004 formed on the lower side surface of the limiting frame 2; and two positioning pins 1005 embedded in the lower side surface of the fixed cover plate 6. When using this device, the explosive charge 4 is first placed on the surface of the limiting frame 2, and the detonating wire 5 is passed through the mounting through groove 1101 and the protective sleeve 1102 on the surface of the fixed cover plate 6. Then, the connecting post 7 is inserted into the slot of the fixed cover plate 6 for connection, so that the connecting post 7 slides. After the connecting post 7 slides, the linkage block 1002 on the surface is released, so that the linkage block 1002 slides into the limiting groove 1001, so that the linkage block 1002 releases the limiting frame 2, so that the fixed cover plate 6 pushes the limiting frame 2 and the explosive charge 4 down.

[0050] In some embodiments, the protective mechanism includes: two mounting slots 1101 formed on the lower surface of the limiting frame 2; two protective sleeves 1102 embedded on the upper side surface of the limiting frame 2; a fixing plate 1103 fixed on the top surface of the opening of the protective sleeve 1102; a support column 1104 embedded on the lower surface of the protective sleeve 1102; a clamping plate 1105 fixed on the upper surface of the support column 1104; a fourth spring 1106 connected between the lower surface of the clamping plate 1105 and the bottom surface of the opening of the protective sleeve 1102; and a connecting column 7 being engaged and fixed by a positioning pin 1005. At this time, the upper end of the connecting column 7 pushes the support column 1104 and the clamping plate 1105 to slide, so that the clamping plate 1105 and the fixing plate 1103 can clamp and fix the detonating wire 5.

[0051] In some embodiments, the mounting box 1 and the limiting frame 2 are slidably connected. The side surface of the explosive charge 4 is provided with a lead wire frame, and one end of the detonating wire 5 is fixedly connected to the surface of the lead wire frame of the explosive charge 4. The lower end of the fixing cover plate 6 is provided with a groove, and the top surface of the groove of the fixing cover plate 6 is uniformly provided with buffer rubber blocks 9. The buffer rubber blocks 9 limit the explosive charge 4. When the explosive charge 4 is subjected to impact force, the buffer rubber blocks 9 buffer and absorb the impact force, thereby reducing the damage to the explosive charge 4.

[0052] In some embodiments, one end of each of the two detonating wires 5 is connected to a detonator 12, the buffer block 9 is hemispherical, and the lower surface of the buffer block 9 is in contact with the upper surface of the explosive charge 4. The lower surfaces of both ends of the fixed cover plate 6 are provided with slots, which are connected to the detonator 12 through the detonating wires 5. The mechanical energy of the explosive charge 4 is controlled to detonate through the detonator 12 and the detonating wires 5.

[0053] In some embodiments, the connecting post 7 and the mounting box 1 are slidably connected, and the upper end of the connecting post 7 extends into the slot on the surface of the fixed cover plate 6. The side surface of the upper end of the connecting post 7 is provided with a positioning groove, and the lower end of the limiting groove 1001 facing the surface of the limiting frame 2 is inclined. The connection is made by the connecting post 7 extending into the slot of the fixed cover plate 6, and the connecting post 7 is pushed down by the support post 1104.

[0054] In some embodiments, both ends of the linkage block 1002 are arc-shaped, and the linkage block 1002 and the mounting box 1 are slidably connected. The width of the locking groove 1004 is smaller than the width of the linkage block 1002. The positioning pin 1005 is slidably connected to the mounting box 1, and the positioning pin 1005 is engaged with the connecting post 7. After the connecting post 7 slides down, the linkage block 1002 slides into the limiting groove 1001, causing one end of the linkage block 1002 to release the limiting frame 2.

[0055] In some embodiments, the lower inner wall of the mounting groove 1101 is inclined, the mounting groove 1101 is L-shaped, and the inner wall of the mounting groove 1101 is arc-shaped. The inner diameter of the opening on the surface of the protective sleeve 1102 is the same as the inner diameter of one end of the mounting groove 1101. The inclined design of the lower inner wall of the mounting groove 1101 reduces the wear of the detonating wire 5, and the arc-shaped design of the inner wall of the mounting groove 1101 reduces the probability of bending damage to the detonating wire 5.

[0056] In some embodiments, both the fixing plate 1103 and the clamping plate 1105 are arc-shaped, and the clamping plate 1105 is slidably connected to the protective sleeve 1102. The support column 1104 is slidably connected to the mounting box 1. The upper end of the connecting column 7 pushes the support column 1104 and the clamping plate 1105 to slide, so that the clamping plate 1105 and the fixing plate 1103 clamp and fix the detonating wire 5 through the arc-shaped surface, reducing the entry of external impurities into the device. Furthermore, the protective sleeve 1102 improves the protective performance of the surface of the detonating wire 5, thereby achieving accurate detonation.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision-controlled blasting device for steep slopes, comprising: The mounting box (1) is characterized by: The mounting box (1) is characterized in that: the upper surface of the mounting box (1) is provided with a groove, and a limiting frame (2) is installed on the inner wall of the groove of the mounting box (1), and two first springs (3) are connected between the bottom surface of the groove of the mounting box (1) and the lower surface of the limiting frame (2), the surface of the limiting frame (2) is provided with a groove, and an explosive charge (4) is placed on the inner wall of the groove of the limiting frame (2), the upper surface of the mounting box (1) is provided with a fixing cover plate (6), and two connecting posts (7) are embedded in the surface of the mounting box (1), and a second spring (8) is connected between the mounting box (1) and the connecting posts (7). A locking mechanism is provided on the surface of the connecting column (7) and the inner wall of the mounting box (1) to lock the device and prevent it from loosening. The locking mechanism includes: A limiting groove (1001) is opened on the side surface of the connecting column (7) facing the limiting frame (2), two linkage blocks (1002) are embedded in the inner wall of the groove of the mounting box (1), a third spring (1003) is connected between the linkage block (1002) and the mounting box (1), two locking grooves (1004) are opened on the lower side surface of the limiting frame (2), and two positioning pins (1005) are embedded in the lower side surface of the fixed cover plate (6). The protective mechanism is located on the upper side surface of the fixed cover plate (6) and inside the fixed cover plate (6) to protect the detonation part of the device. The protective mechanism includes: Two mounting slots (1101) are provided on the lower surface of the limit frame (2), two protective sleeves (1102) are embedded in the upper side surface of the limit frame (2), a fixing plate (1103) is fixed on the top surface of the opening of the protective sleeve (1102), a support column (1104) is embedded in the lower surface of the protective sleeve (1102), a clamping plate (1105) is fixed on the upper surface of the support column (1104), and a fourth spring (1106) is connected between the lower surface of the clamping plate (1105) and the bottom surface of the opening of the protective sleeve (1102).

2. The precision-controlled blasting device for steep slopes according to claim 1, characterized in that: The mounting box (1) and the limiting frame (2) are connected in a sliding manner. The side surface of the explosive charge (4) is provided with a lead wire frame, and one end of the detonating wire (5) is fixedly connected to the surface of the lead wire frame of the explosive charge (4). The lower end of the fixed cover plate (6) is provided with a groove, and the top surface of the groove of the fixed cover plate (6) is uniformly provided with buffer rubber blocks (9).

3. The precision-controlled blasting device for steep slopes according to claim 2, characterized in that: One end of each of the two detonating wires (5) is connected to a detonator (12). The buffer block (9) is hemispherical and its lower surface is in contact with the upper surface of the explosive charge (4). The lower surfaces of both ends of the fixed cover plate (6) are provided with slots.

4. The precision-controlled blasting device for steep slopes according to claim 1, characterized in that: The connecting column (7) and the mounting box (1) form a sliding connection, and the upper end of the connecting column (7) extends into the slot on the surface of the fixed cover plate (6). The side surface of the upper end of the connecting column (7) is provided with a positioning groove, and the lower end of the limiting groove (1001) facing the limiting frame (2) is designed to be inclined.

5. The precision-controlled blasting device for steep slopes according to claim 1, characterized in that: Both ends of the linkage block (1002) are arc-shaped, and the linkage block (1002) and the mounting box (1) are slidably connected. The width of the locking groove (1004) is smaller than the width of the linkage block (1002). The positioning pin (1005) and the mounting box (1) are slidably connected, and the positioning pin (1005) and the connecting post (7) are engaging.

6. The precision-controlled blasting device for steep slopes according to claim 1, characterized in that: The lower inner wall of the mounting groove (1101) is inclined, and the mounting groove (1101) is L-shaped. The inner wall of the mounting groove (1101) is arc-shaped. The inner diameter of the opening on the surface of the protective sleeve (1102) is the same as the inner diameter of one end of the mounting groove (1101).

7. The precision-controlled blasting device for steep slopes according to claim 1, characterized in that: The fixing plate (1103) and the clamping plate (1105) are both arc-shaped, and the clamping plate (1105) and the protective sleeve (1102) are slidably connected. The support column (1104) and the mounting box (1) are slidably connected.

8. A blasting method, characterized in that: The precision-controlled blasting device for steep slopes as described in any one of claims 1-7 comprises the following steps: S1: First, use engineering machinery to excavate a stepped plane on the steep slope that needs to be repaired. Then, grooves are made on the plane as needed to facilitate the precise control of the placement of blasting devices on the steep slope. S2: Place the mounting box (1) in the groove, and then place the explosive charge (4) in the groove of the limiting frame (2); S3: Pass the detonating wires (5) on both sides of the explosive charge (4) through the mounting slot (1101) and protective sleeve (1102) on the surface of the fixed cover plate (6), and then press down the fixed cover plate (6) to connect with the mounting box (1); S4: Insert the upper end of the connecting post (7) into the slot on the surface of the fixed cover plate (6) so that the connecting post (7) pushes the support post (1104) and the clamping plate (1105) to clamp and fix the detonating wire (5); S5: By fixing the cover plate (6), the connecting column (7) is pushed down, so that the limiting groove (1001) on the surface of the connecting column (7) pushes the linkage block (1002) to slide, thereby releasing the limiting frame (2) so that it can drive the explosive pack (4) down. S6: By connecting the detonating wire (5), one end of the detonating wire (5) is connected to the detonator (12), and the explosive charge (4) is detonated in a controlled manner through the detonator (12) and the detonating wire (5).

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