Canal controlled blasting construction damping device and control method

Abstract

The invention discloses a canal controlled blasting construction damping device and a control method, and relates to the technical field of blasting construction, the canal controlled blasting construction damping device comprises a damping rod, the damping rod is installed in a damping hole formed in the ground, and the damping rod is of a hollow round rod structure; the bolt is arranged on the outer wall of the damping rod in a penetrating mode, one end of the bolt extends into the damping rod, the bolt is rotationally connected with the damping rod, and the end, away from the damping rod, of the bolt is in threaded connection with a connecting piece; the first spring shock absorber is fixedly arranged on the side wall, away from the bolt, of the connecting piece, and a supporting plate is fixedly arranged at the end, away from the connecting piece, of the first spring shock absorber; and the driving assembly is arranged in the damping rod and used for driving the bolt to rotate. The method has the effect of reducing the influence on resident houses near the blasting area.

Description

Technical Field

[0001] The invention relates to the technical field of blasting construction, in particular to a canal controlled blasting construction shock absorbing device and a control method. Background Art

[0002] During the construction of the canal, blasting holes are dug on the land surface to blast the land surface, and then deep pits are blasted to form the canal.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: during the blasting process, if there are residential houses near the blasting area, in order to ensure that the residential houses are not affected, the blasting waves generated by the blasting need to be weakened during the blasting process. The existing shock-absorbing method only reduces shock by opening shock-absorbing holes on the land surface to reflect and block the blasting waves. The effect of shock-absorbing only by opening shock-absorbing holes is limited, which may cause an impact on residents living in the residential houses during the blasting. Summary of the invention

[0004] The object of the present invention is to provide a canal controlled blasting construction shock absorbing device and control method, so as to reduce the probability of the blasting wave affecting residential buildings during blasting.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a canal controlled blasting construction shock absorbing device, comprising a shock absorbing rod, which is installed in a shock absorbing hole opened on the ground, and the shock absorbing rod is a round rod-shaped structure with a hollow interior; a bolt, which is arranged on the outer wall of the shock absorbing rod through which one end of the bolt extends into the interior of the shock absorbing rod, and the bolt is rotatably connected to the shock absorbing rod, and the end of the bolt away from the shock absorbing rod is threadedly connected to a connecting piece; a first spring shock absorber, which is fixedly arranged on the side wall of the connecting piece away from the bolt, and the end of the first spring shock absorber away from the connecting piece is fixedly arranged with a support plate; a driving assembly, which is arranged in the shock absorbing rod and is used to drive the bolt to rotate.

[0006] Preferably, a rotating hole is provided on the upper surface of the shock absorbing rod, and the driving assembly includes a rotating shaft rotatably arranged in the rotating hole, and a first bevel gear fixedly arranged on the bottom surface of the rotating shaft; it also includes a second bevel gear fixedly arranged on the side wall of the bolt away from the connecting member, and the first bevel gear and the second bevel gear are meshed with each other.

[0007] Preferably, a mounting groove is provided on the side wall of the support plate away from the first spring shock absorber, two mutually symmetrical second spring shock absorbers are fixedly provided on the inner wall of the mounting groove, and a clamping plate is fixedly provided on the other ends of the two second spring shock absorbers.

[0008] Preferably, two mutually symmetrical third spring shock absorbers are fixedly arranged on the inner wall of the mounting groove, a first rotating seat is fixedly arranged on the side wall of the clamping plate close to the second spring shock absorber, and a second rotating seat is fixedly arranged on one end of the two third spring shock absorbers close to each other; a rotating rod is rotatably arranged in each of the two second rotating seats, and the two rotating rods are rotatably connected to the first rotating seat at one end away from the second rotating seat.

[0009] Preferably, a rotation groove is formed through the outer wall of the shock absorbing rod, a bearing is fixedly arranged in the rotation groove, and the bolt passes through the inner ring of the bearing and is fixed to the inner ring of the bearing.

[0010] Preferably, the connecting member has limit holes symmetrically arranged on a side wall away from the first spring shock absorber, a limit rod is fixedly arranged on an outer wall of the shock absorber rod, and the limit rod is slidably connected to the limit hole.

[0011] Preferably, an annular groove is provided on the inner wall of the rotating hole, an annular block is rotatably arranged in the annular groove, and the annular block is fixed to the rotating shaft.

[0012] Preferably, a fixing cone is fixedly provided on the bottom surface of the shock absorbing rod, and the fixing cone coincides with the axis of the shock absorbing rod.

[0013] Preferably, one end of the two rotating rods are rotatably connected to the two second rotating seats respectively, and one end of the two rotating rods away from the second rotating seat are rotatably connected to the first rotating seat; one end of the two rotating rods away from the second rotating seat are rotatably connected to each other, and both ends of the two rotating rods are provided with rounded corners.

[0014] The present application also discloses a control method for controlled blasting construction of a canal. Within a range of 50m from residential houses or important facilities, excavation is carried out in a controlled blasting manner, with more holes drilled and less charge, micro-difference blasting from hole to hole, and reduction of the total amount of charge in a single blasting. At the same time, shock-absorbing holes are drilled between the protection area and the blasting area, and shock-absorbing devices are installed in the shock-absorbing holes; three rows of shock-absorbing holes are arranged close to the controlled blasting boundary between the controlled blasting area and the protected buildings, and the blast holes are arranged in a plum blossom shape, with a hole spacing of 0.5m and a row spacing of 0.5m. The hole depth exceeds the excavation depth by 2m, and the length of the shock-absorbing hole area exceeds the controlled blasting boundary by no less than 3m.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] By placing the shock absorbing rod in the shock absorbing hole, when the explosion occurs, the blast wave generated impacts the support plate, thereby causing the support plate to vibrate. At this time, the first spring shock absorber absorbs the impact of the blast wave on the support plate, and reduces the impact generated in the recovery process of the first spring shock absorber through internal buffers and shock absorbing materials. In this process, the shock absorbing effect of installing the shock absorbing device in the shock absorbing hole is much greater than the shock absorbing effect of only opening the shock absorbing hole on the ground, thereby reducing the probability of the blast wave during the explosion affecting the residential buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 is a schematic cross-sectional structural diagram of a driving assembly in an embodiment of the present invention;

[0019] Figure 3 is a schematic structural diagram of a support plate and abutment plate in an embodiment of the present invention;

[0020] Figure 4 is a schematic diagram of the cross-sectional structure of a support plate in an embodiment of the present invention;

[0021] Figure 5 yes Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0022] Figure 6 is a schematic structural diagram of a connecting member and a bolt in an embodiment of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the controlled blasting method in an embodiment of the present invention.

[0024] In the figure: 1. shock absorbing rod; 11. bolt; 12. connecting piece; 13. first spring shock absorber; 14. support plate; 2. rotating hole; 21. mounting groove; 22. rotating groove; 23. limiting hole; 24. annular groove; 3. driving assembly; 31. rotating shaft; 32. first bevel gear; 33. second bevel gear; 4. second spring shock absorber; 41. clamping plate; 5. third spring shock absorber; 51. first rotating seat; 52. second rotating seat; 53. rotating rod; 6. bearing; 7. limiting rod; 8. annular block; 9. fixing cone. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. The following describes various embodiments of the present invention in detail in conjunction with the drawings.

[0026] See also Figures 1 to 6 The present invention preferably provides a technical solution: a shock-absorbing device for canal controlled blasting construction, comprising a shock-absorbing rod 1, which is installed in a shock-absorbing hole opened on the ground, and the shock-absorbing rod 1 is a round rod-shaped structure with a hollow interior; a bolt 11, which is penetrated and arranged on the outer wall of the shock-absorbing rod 1, and one end of the bolt 11 extends into the shock-absorbing rod 1, and the bolt 11 is rotatably connected to the shock-absorbing rod 1, and one end of the bolt 11 away from the shock-absorbing rod 1 is threadedly connected with a connecting piece 12; a first spring shock absorber 13, which is fixedly arranged on the side wall of the connecting piece 12 away from the bolt 11, and one end of the first spring shock absorber 13 away from the connecting piece 12 is fixedly arranged with a support plate 14; a driving assembly 3, which is arranged in the shock-absorbing rod 1 and is used to drive the bolt 11 to rotate.

[0027] In this embodiment, by placing the shock absorbing rod 1 in the shock absorbing hole, during blasting, the generated blast wave impacts the support plate 14, thereby causing the support plate 14 to vibrate. At this time, the first spring shock absorber 13 absorbs the impact of the support plate 14 from the blast wave, and reduces the impact generated during the recovery process of the first spring shock absorber 13 through internal buffers and shock absorbing materials. In this process, the shock absorbing effect of installing the shock absorbing device in the shock absorbing hole is much greater than the shock absorbing effect of only opening the shock absorbing hole on the ground, thereby reducing the probability of the blast wave during blasting affecting residential houses.

[0028] Specifically, when in use, the staff puts the shock absorbing rod 1 into the shock absorbing hole. Then, the staff starts the driving assembly 3 to drive the bolt 11 to rotate, so that the connecting member 12 moves away from the shock absorbing rod 1 under the action of the driving assembly 3, so that the first spring shock absorber 13 and the support plate 14 move away from the shock absorbing rod 1, and the support plate 14 is pressed against the inner wall of the shock absorbing hole. At this time, when blasting, the shock absorbing device absorbs the vibration generated by the blast wave during blasting, thereby reducing the impact of the blast wave on nearby residential buildings.

[0029] It is worth noting that the driving assembly 3 can make the support plate 14 press against the inner wall of the shock-absorbing holes with different diameters, so that the shock-absorbing holes with different diameters can be used, thereby improving the practicability of the device.

[0030] The present invention places the shock absorbing rod 1 in the shock absorbing hole. When blasting, the generated blast wave impacts the support plate 14, thereby causing the support plate 14 to vibrate. At this time, the first spring shock absorber 13 absorbs the impact of the support plate 14 from the blast wave, and reduces the impact generated in the recovery process of the first spring shock absorber 13 through internal buffers and shock absorbing materials. In this process, the shock absorbing effect of installing the shock absorbing device in the shock absorbing hole is much greater than the shock absorbing effect of only opening the shock absorbing hole on the ground, thereby reducing the probability of the blast wave during blasting affecting residential houses.

[0031] Furthermore, a rotating hole 2 is opened on the upper surface of the shock absorber rod 1, and the driving assembly 3 includes a rotating shaft 31 rotatably set in the rotating hole 2, and a first bevel gear 32 fixedly set on the bottom surface of the rotating shaft 31; it also includes a second bevel gear 33 fixedly set on the side wall of the bolt 11 away from the connecting member 12, and the first bevel gear 32 and the second bevel gear 33 are meshed with each other.

[0032] Combination Figure 2 As shown, when the staff needs to make the support plate 14 press against the inner wall of the shock-absorbing hole, the staff needs to rotate the rotating shaft 31, thereby causing the first bevel gear 32 to rotate under the action of the rotating shaft 31, thereby causing the second bevel gear 33 meshing with the first bevel gear 32 to rotate, and then the bolt 11 rotates synchronously with the second bevel gear 33 under the action of the second bevel gear 33, so that the connecting member 12, the first spring shock absorber 13 and the support plate 14 move under the action of the bolt 11, thereby causing the support plate 14 to press against the inner wall of the shock-absorbing hole.

[0033] Furthermore, a mounting groove 21 is formed on the side wall of the support plate 14 away from the first spring shock absorber 13 , and two symmetrical second spring shock absorbers 4 are fixedly disposed on the inner wall of the mounting groove 21 , and a clamping plate 41 is fixedly disposed on the other ends of the two second spring shock absorbers 4 .

[0034] like Figure 3 , 4 As shown in Figures 5 and 6, when the support plate 14 moves, the abutting plate 41 moves with the support plate 14 under the action of the support plate 14, so that the abutting plate 41 abuts against the inner wall of the shock-absorbing hole. In this process, when a detonation wave is generated, the abutting plate 41 is impacted. At this time, the second spring shock absorber 4 first absorbs the detonation wave. When the support plate 14 is impacted, the first shock-absorbing spring absorbs the detonation wave. In this process, the second spring shock absorber 4 further improves the shock-absorbing effect, thereby further reducing the probability of affecting nearby residential buildings.

[0035] Furthermore, two symmetrical third spring shock absorbers 5 are fixedly arranged on the inner wall of the mounting groove 21, a first rotating seat 51 is fixedly arranged on the side wall of the clamping plate 41 close to the second spring shock absorber 4, and a second rotating seat 52 is fixedly arranged at one end of the two third spring shock absorbers 5 close to each other; a rotating rod 53 is rotatably arranged in each of the two second rotating seats 52, and the two rotating rods 53 are rotatably connected to the first rotating seat 51 at one end away from the second rotating seat 52.

[0036] like Figure 4 , 5 As shown, when the abutting plate 41 is impacted by the detonation wave, the abutting plate 41 moves into the mounting groove 21. At this time, the first rotating seat 51 follows the abutting plate 41 to move into the mounting groove 21, thereby causing the rotating rod 53 to rotate relative to the first rotating seat 51, thereby causing the rotating rod 53 to rotate relative to the second rotating seat 52, thereby causing the second rotating seat 52 to move, so that the third spring shock absorber 5 absorbs the detonation wave, thereby further reducing the impact caused by the detonation wave. In addition, the third spring shock absorber 5 assists in shock absorption for the second spring shock absorber 4, thereby reducing the probability of damage to the second spring shock absorber 4.

[0037] Furthermore, a rotation groove 22 is formed through the outer wall of the shock absorbing rod 1 , a bearing 6 is fixedly disposed in the rotation groove 22 , and the bolt 11 passes through the inner ring of the bearing 6 and is fixed to the inner ring of the bearing 6 .

[0038] like Figure 2 , 3 As shown in Figure 6, when the bolt 11 rotates, the inner ring of the bearing 6 rotates synchronously with the bolt 11 under the action of the bolt 11. In this process, since the inner ring of the bearing 6 is fixed in the rotation groove 22, the probability of displacement of the bolt 11 during use is reduced, and the probability of displacement of the second bevel gear 33 is reduced, thereby reducing the probability of separation of the second bevel gear 33 and the first bevel gear 32, thereby improving the stability of the device.

[0039] Furthermore, a limiting hole 23 is symmetrically provided on the side wall of the connecting member 12 away from the first spring shock absorber 13 , and a limiting rod 7 is fixedly provided on the outer wall of the shock absorber rod 1 , and the limiting rod 7 is slidably connected to the limiting hole 23 .

[0040] like Figure 3 , 6 As shown, when the connecting member 12 moves under the action of the bolt 11, the limiting rod 7 and the connecting member 12 slide relative to each other. In this process, the probability of the connecting member 12 rotating synchronously with the bolt 11 when the bolt 11 rotates is reduced, thereby reducing the probability of the support plate 14 rotating and deviating, thereby improving the stability of the device.

[0041] Furthermore, an annular groove 24 is formed on the inner wall of the rotating hole 2 , and an annular block 8 is rotatably disposed in the annular groove 24 , and the annular block 8 and the rotating shaft 31 are fixed to each other.

[0042] like Figure 2 As shown, when the staff rotates the rotating shaft 31, the annular block 8 rotates under the action of the rotating shaft 31. During this process, the side wall of the annular block 8 abuts against the inner wall of the annular groove 24, thereby reducing the probability of the rotating rod 53 moving, thereby reducing the probability of the first bevel gear 32 moving and separating from the second bevel gear 33, thereby improving the stability of the device.

[0043] Furthermore, a fixing cone 9 is fixedly provided on the bottom surface of the shock absorbing rod 1 , and the fixing cone 9 coincides with the axis of the shock absorbing rod 1 .

[0044] like Figure 1 As shown, when the staff installs the shock absorbing rod 1 into the shock absorbing hole, the staff inserts the shock absorbing rod into the shock absorbing hole through the fixing cone 9, thereby reducing the probability of the shock absorbing rod 1 shaking during use, thereby reducing the probability of the shock absorbing rod 1 tilting, and thus improving the stability of the device.

[0045] Furthermore, one end of the two rotating rods 53 is rotatably connected to the two second rotating seats 52 respectively, and one end of the two rotating rods 53 away from the second rotating seat 52 is rotatably connected to the first rotating seat 51; one end of the two rotating rods 53 away from the second rotating seat 52 is rotatably connected to each other, and both ends of the two rotating rods 53 are provided with rounded corners.

[0046] like Figure 4 , 5 As shown, when the ends of the two rotating rods 53 close to the first rotating seat 51 rotate relative to the first rotating seat 51, the side walls of the two rotating rods 53 that are away from each other are rotatably connected to the first rotating seat 51, and the side walls of the two rotating rods 53 that are close to each other rotate relative to each other, thereby reducing the probability of collision between the two rotating rods 53 when rotating. In addition, the rounded corners at both ends of the rotating rods 53 reduce the probability of collision between the rotating rods 53 and the first rotating seat 51 and the second rotating seat 52 when rotating.

[0047] See also Figure 7The embodiment of the present application also discloses a control method for controlled blasting construction of a canal. Within a range of 50m from residential houses or important facilities, excavation is carried out in a controlled blasting manner, with more holes drilled and less charge, and micro-difference blasting from hole to hole to reduce the total amount of charge in a single blasting. At the same time, shock-absorbing holes are drilled between the protection area and the blasting area, and the shock-absorbing devices are installed in the shock-absorbing holes; three rows of shock-absorbing holes are arranged close to the controlled blasting boundary between the controlled blasting area and the protected buildings, and the blast holes are arranged in a plum blossom shape, with a hole spacing of 0.5m and a row spacing of 0.5m. The hole depth exceeds the excavation depth by 2m, and the length of the shock-absorbing hole area exceeds the controlled blasting boundary by no less than 3m.

[0048] When the protection area is 50m away from the blasting area, three rows of shock-absorbing holes distributed in a plum blossom shape are opened and shock-absorbing devices are installed in the shock-absorbing holes, thereby reducing the probability of affecting the protection area when the blasting area is close to the protection area.

[0049] In the present invention, unless otherwise clearly specified and limited, terms such as "install", "connect", "connect", and "fix" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection. There are many ways of detachable installation, for example, it can be through the method of plug-in and snap-fit, or through the method of bolt connection, etc.

[0050] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A canal controlled blasting construction shock absorbing device, characterized in that: include: A shock absorbing rod (1), the shock absorbing rod (1) being installed in a shock absorbing hole opened on the ground, the shock absorbing rod (1) being a round rod-shaped structure with a hollow interior; A bolt (11), the bolt (11) being arranged through the outer wall of the shock absorbing rod (1), one end of the bolt (11) extending into the interior of the shock absorbing rod (1), the bolt (11) being rotatably connected to the shock absorbing rod (1), and one end of the bolt (11) away from the shock absorbing rod (1) being threadedly connected to a connecting piece (12); a first spring shock absorber (13), the first spring shock absorber (13) being fixedly arranged on a side wall of the connecting member (12) away from the bolt (11), and a support plate (14) being fixedly arranged on one end of the first spring shock absorber (13) away from the connecting member (12); A driving assembly (3) is arranged in the shock absorbing rod (1) and is used to drive the bolt (11) to rotate.

2. A canal controlled blasting construction shock absorbing device according to claim 1, characterized in that: The upper surface of the shock absorbing rod (1) is provided with a rotating hole (2), and the driving assembly (3) comprises a rotating shaft (31) rotatably arranged in the rotating hole (2), and a first bevel gear (32) fixedly arranged on the bottom surface of the rotating shaft (31); It also comprises a second bevel gear (33) fixedly arranged on a side wall of the bolt (11) away from the connecting member (12), and the first bevel gear (32) and the second bevel gear (33) are meshed with each other.

3. A canal controlled blasting construction shock absorbing device according to claim 1, characterized in that: A mounting groove (21) is provided on the side wall of the support plate (14) away from the first spring shock absorber (13); two second spring shock absorbers (4) symmetrical to each other are fixedly arranged on the inner wall of the mounting groove (21); and a clamping plate (41) is fixedly arranged at the other ends of the two second spring shock absorbers (4).

4. A canal controlled blasting construction shock absorbing device according to claim 3, characterized in that: Two third spring shock absorbers (5) are fixedly arranged symmetrically on the inner wall of the installation groove (21); a first rotating seat (51) is fixedly arranged on the side wall of the abutting plate (41) close to the second spring shock absorber (4); and a second rotating seat (52) is fixedly arranged on the ends of the two third spring shock absorbers (5) close to each other; A rotating rod (53) is rotatably arranged in each of the two second rotating seats (52), and one end of the two rotating rods (53) away from the second rotating seat (52) is rotatably connected to the first rotating seat (51).

5. The canal controlled blasting construction shock absorbing device according to claim 1 is characterized by: A rotation groove (22) is formed through the outer wall of the shock absorbing rod (1), a bearing (6) is fixedly arranged in the rotation groove (22), and the bolt (11) passes through the inner ring of the bearing (6) and is fixed to the inner ring of the bearing (6).

6. A canal controlled blasting construction shock absorbing device according to claim 1, characterized in that: A limiting hole (23) is symmetrically provided on a side wall of the connecting member (12) away from the first spring shock absorber (13); a limiting rod (7) is fixedly arranged on the outer wall of the shock absorber rod (1); and the limiting rod (7) is slidably connected to the limiting hole (23).

7. A canal controlled blasting construction shock absorbing device according to claim 2, characterized in that: An annular groove (24) is provided on the inner wall of the rotating hole (2), an annular block (8) is rotatably arranged in the annular groove (24), and the annular block (8) and the rotating shaft (31) are fixed to each other.

8. The canal controlled blasting construction shock absorbing device according to claim 1 is characterized by: A fixed cone (9) is fixedly arranged on the bottom surface of the shock absorbing rod (1), and the fixed cone (9) coincides with the axis of the shock absorbing rod (1).

9. A canal controlled blasting construction shock absorbing device according to claim 4, characterized in that: One end of the two rotating rods (53) is rotatably connected to the two second rotating seats (52) respectively, and one end of the two rotating rods (53) away from the second rotating seat (52) is rotatably connected to the first rotating seat (51); The ends of the two rotating rods (53) away from the second rotating seat (52) are rotatably connected to each other, and both ends of the two rotating rods (53) are provided with rounded corners.

10. A method for controlling canal controlled blasting construction according to any one of claims 1 to 9, characterized in that: Here are the steps: Within 50m of residential buildings or important facilities, excavation shall be carried out by controlled blasting, with more holes drilled and less charge, and slight difference blasting for each hole to reduce the total charge for a single blast. At the same time, shock-absorbing holes shall be drilled between the protection area and the blasting area, and shock-absorbing devices shall be installed in the shock-absorbing holes; Three rows of shock-absorbing holes are arranged between the controlled blasting area and the protected buildings, close to the controlled blasting boundary. The blast holes are arranged in a plum blossom pattern with a hole spacing of 0.5m and a row spacing of 0.5m. The hole depth exceeds the excavation depth by 2m, and the length of the shock-absorbing hole area exceeds the controlled blasting boundary by no less than 3m.

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