Sluice gate underwater rapid breaking-in method adopting energy-gathered cutter

Abstract

The invention discloses a quick underwater break-in method for a sluice gate adopting an energy-gathered cutter. The break-in method comprises the following steps: a, preparation work before break-in; b, connecting an energy-gathered cutter; c, connecting the outer protection plates; d, underwater installation of the energy-gathered cutter; and e, forcible entry is completed. The energy-gathered cutter is firstly connected with the outer protection plate on the water, operation is convenient, underwater operating personnel, the outer protection plate and the energy-gathered cutter are put down to the underwater forcible entry position at the same time through putting-down equipment, the underwater operating personnel can rapidly reach the forcible entry position, and the forcible entry efficiency is improved. Underwater operation personnel adjust the position of the energy-gathered cutter through isolation of the outer protection plate, the energy-gathered cutter is prevented from making direct contact with the underwater operation personnel, the outer protection plate plays a role in protecting the underwater operation personnel, the underwater operation safety performance is greatly improved, meanwhile, lowering equipment and the outer protection plate are moved to one end of the gate and are away from the forcible entry position, and the safety of the underwater operation is improved. And the lowering equipment and the outer protection plate can be recycled, so that the cost investment is greatly saved.

Description

Technical Field

[0001] The invention belongs to the technical field of gate construction, and in particular relates to an underwater rapid demolition method for a water discharge gate using an energy-gathering cutter. Background Art

[0002] Focused energy cutter: It uses the focused energy effect (commonly known as the "Monroe effect"), that is, after the explosive explodes, the detonation products are at high temperature and high pressure to cut metal materials, and the blasting fragments basically fly outward along the normal direction of the explosive surface. After the grooved charge is detonated, a convergent flow of explosion products with high speed and pressure will appear on the axis of the groove, which concentrates the chemical energy released by the explosion of the explosive within a certain range.

[0003] The sluice gate is a low-head sluice structure that mainly uses a gate to block water. It consists of a lock chamber and upstream and downstream connecting sections. The lock chamber is the main body of the sluice gate and is equipped with a gate. The main function of the upstream connecting section is to guide the water flow into the gate evenly; the main function of the downstream connecting section is to dissipate energy and prevent scouring, and guide the water flow to be safely discharged into the downstream river.

[0004] When it is necessary to open the gate to release water downstream, some of the gates cannot be lifted normally due to old reservoir facilities, and it is necessary to break open the gates to release water. When the gates are cut underwater, the upstream water flow will impact the downstream, and manual cutting by underwater workers is not possible. The energy-gathering cutter has high cutting accuracy, flexible application and fast cutting speed. Therefore, how to use the energy-gathering cutter to quickly break open the discharge gate underwater is an urgent problem to be solved. Summary of the invention

[0005] The present invention aims to solve the above-mentioned technical problems existing in the prior art, and provides a method for underwater rapid demolition of a sluice gate using an energy-gathering cutter, wherein an energy-gathering cutter of corresponding size and charge amount is prepared before demolition, and then a lowering device is fixed on the top of the gate, and then a cross-tightening piece is fixed in the center hole of the energy-gathering cutter, and a magnetic fixing piece is provided on the cross-tightening piece for fixing the cross-tightening piece and the energy-gathering cutter on the gate, and then an adjusting screw is threadedly connected with a threaded connection hole in the cross-tightening piece so that the energy-gathering cutter is fixed to an outer protective plate, and then the outer protective plate is lowered underwater together with an underwater operator by a lowering device, and the height of the energy-gathering cutter is adjusted by the lowering device to be consistent with the demolition height, and the adjusting screw is controlled to be adjusted along the adjusting hole of the outer protective back plate to complete the horizontal position adjustment of the energy-gathering cutter, and the adjusting screw is rotated to drive the energy-gathering cutter to adjust the angle, and then the pressing piece applies pressure to one side of the gate so that the energy-gathering cutter fits on the gate, thereby greatly improving the installation accuracy of the energy-gathering cutter, and at the same time, the cross-tightening piece The magnetic fixing part 1 on the component and the magnetic fixing part 2 in the energy-gathering cutter are simultaneously adsorbed on the gate, which greatly improves the connection strength between the energy-gathering cutter and the gate, so that the energy-gathering jet generated by the explosion of the energy-gathering cutter acts better on the gate, greatly improving the cutting effect of the energy-gathering cutter; after the energy-gathering cutter is fixed on the gate, the outer protective plate and the energy-gathering cutter are loosened, and the underwater workers can quickly return to the top of the gate and evacuate the scene through the rope of the lowering equipment, and at the same time, the lowering equipment drives the outer protective plate to move to one end of the gate, away from the demolition position, and then the energy-gathering cutter is controlled to explode to generate an energy-gathering jet to cut the gate, completing the demolition and water discharge of the gate; the underwater workers adjust the position of the energy-gathering cutter through the isolation of the outer protective plate to avoid direct contact between the energy-gathering cutter and the underwater workers. The outer protective plate plays a protective role for the underwater workers, greatly improving the safety performance of underwater operations, and at the same time, the lowering equipment and the outer protective plate are moved to one end of the gate, away from the demolition position, so that the lowering equipment and the outer protective plate can be recycled, greatly saving the cost investment.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A method for rapid underwater demolition of a sluice gate using an energy-gathering cutter comprises the following steps:

[0008] a. Preparation work before demolition

[0009] 1) Preparation of energy-gathering cutter: Select energy-gathering cutter of corresponding size and charge according to gate parameters and water discharge of sluice gate;

[0010] 2) Fixing of the lowering equipment: First, arrange the lowering equipment on the top of the gate according to the demolition position of the gate, and then limit and reinforce the lowering equipment with L-shaped limit blocks.

[0011] b. Connection of energy-focusing cutter

[0012] The energy-gathering cutter is a frame structure. A cross-tightening piece is arranged in the center hole of the energy-gathering cutter, and a magnetic fixing piece is arranged on one side of the center of the cross-tightening piece close to the gate; a threaded connection hole is arranged on the other side of the center of the cross-tightening piece.

[0013] c. Connection of outer protective plate

[0014] The outer protection plate is provided with an adjusting screw, and the end of the adjusting screw is screwed into the threaded connection hole of the cross-tightening member, so that the outer protection plate and the energy-focusing cutter are fixed.

[0015] d. Underwater installation of energy-gathering cutter

[0016] 1) Lowering: The underwater workers stand on the underwater working platform at the bottom of the outer protective plate, and lower the outer protective plate, the energy-gathering cutter and the underwater workers to the gate demolition position at the same time through the lowering equipment;

[0017] 2) Fixed installation: After the energy-gathering cutter is lowered underwater, the height of the energy-gathering cutter is adjusted through the lowering equipment, and the adjusting screw in the outer protective plate is driven to adjust along the adjusting hole of the outer protective back plate to adjust the horizontal direction of the energy-gathering cutter. The adjusting screw is rotated to adjust the angle of the energy-gathering cutter so that the energy-gathering cutter can be adjusted to the corresponding demolition position; then the clamping piece on the outer protective plate is controlled to apply pressure to one side of the gate, thereby driving the energy-gathering cutter to fit closely on the gate, and the energy-gathering cutter is fixed on the gate through the magnetic fixing piece 1 on the cross-tightening piece and the magnetic fixing piece 2 on the energy-gathering cutter.

[0018] e. Complete the demolition

[0019] After the clamping piece presses the energy-gathering cutter onto the gate, the adjusting screw is controlled to rotate so that the adjusting screw is disengaged from the cross-tensioning piece, and then the clamping piece is controlled to release the energy-gathering cutter, and the underwater workers return to the shore and evacuate; at the same time, the L-shaped limit block is loosened to move the lowering equipment to one end of the gate, away from the demolition position of the energy-gathering cutter, and finally the energy-gathering cutter is detonated by the detonating cap, generating an energy-gathering jet underwater to cut the gate, completing the demolition of the gate.

[0020] Furthermore, the energy-gathering cutter includes a shell, a main explosive, a metal charge cap, a detonating cap and a second magnetic fixing part. The metal charge cap is arranged in the shell, the hole of the metal charge cap is arranged downward, and a set explosion height is left at the bottom of the metal charge cap and the shell. The main explosive is filled in the cavity between the cutter shell and the metal charge cap. The detonating cap is fixed on the top of the shell and fits with the main explosive. The second magnetic fixing part is fixedly connected at the four corners of the center hole. The shell is fixed to the gate by the second magnetic fixing part. After the detonating cap detonates the main charge, an energy-gathering jet is generated underwater to cut the gate. After the detonating cap is exploded by remote control, the main charge explodes, generating an energy-gathering metal jet, and cutting the gate steel plate in the shape of the shell, realizing the need for remote, accurate and rapid demolition of the gate, avoiding manual cutting by operators underwater, greatly improving safety performance, and achieving the purpose of rapid demolition of the gate.

[0021] Furthermore, the second magnetic fixing part includes an L-shaped mounting frame, a fixing block and a second magnet. The L-shaped mounting frame is fixedly connected to the bottom of the shell, the fixing block is fixedly connected to the L-shaped mounting frame, and the second magnet is fixedly connected to the fixing block. The bottom surface of the second magnet is in the same plane as the bottom surface of the shell. The L-shaped mounting frame is used to install the fixing block, and the second magnet is fixed in the fixing block. The second magnet is adsorbed on the gate, so that the energy-concentrating cutter is connected to the gate. The second magnet can be made of neodymium magnet steel, which has the advantages of stable magnetism, high hardness, and strong magnetism.

[0022] Furthermore, the cross-tightening member includes a cross bracket, a tightening seat and a magnetic fixing member 1, the tightening seat is movably connected to the four ends of the cross bracket, the magnetic fixing member 1 is fixedly connected to the side of the center of the cross bracket close to the gate, and a threaded connection hole is provided on the other side of the center of the cross bracket, and the magnetic fixing member 1 includes a fixing seat and a magnet 1, the fixing seat is fixedly connected to the cross bracket, the magnet 1 is fixedly connected in the fixing seat, and the magnet 1 and the bottom surface of the energy-concentrating cutter are on the same plane. The cross bracket is set in the center hole of the energy-concentrating cutter, and the tightening seat is controlled to tighten against the inner wall of the center hole, so that the cross-tightening member is fixedly connected to the energy-concentrating cutter, the magnet 1 is installed in the fixing seat, and the fixing seat fixes the magnet 1 to the cross bracket, and the threaded connection hole is used to connect the adjustment screw in the outer protective plate.

[0023] Furthermore, the tightening seat includes a tightening part and a sleeve part, the tightening part is fixedly connected to one end of the sleeve part, the other end of the sleeve part is provided with a through hole, the sleeve part is sleeved on the four ends of the cross bracket through the through hole, the four ends of the cross bracket are fixedly connected with locking screws, the outer side of the sleeve part is provided with an adjustment groove, the adjustment groove is connected with the through hole, the locking screw passes through the adjustment groove, the end of the locking screw is screwed with a locking nut, the locking nut is tightened on the sleeve part, when the cross tightening piece is tightened in the center hole of the energy focusing cutter, the tightening part is tightened on the inner wall of the center hole. By loosening the locking nut, the sleeve part is controlled to drive the tightening part to slide, so that the tightening part is tightened on the inner wall of the center hole, and then the locking nut is fixed, so that the cross tightening piece is tightened in the energy focusing cutter.

[0024] Furthermore, the lowering equipment includes a winch, a mounting seat, an inverted L-shaped support and a slide rail. The mounting seat is fixedly connected between the tops of the two inverted L-shaped supports, the winch is fixedly connected to the mounting seat, the rope in the winch is connected to the outer protective plate, the slide rail is fixedly connected to the inverted L-shaped support, and both ends of the outer protective plate are slidably connected to the slide rail; a slide groove is provided on the top of the inverted L-shaped support, and connecting holes are evenly distributed on both sides of the slide groove. The top of the L-shaped limit block is movably connected to the slide groove, and a limiting part is provided at the top of the L-shaped limit block corresponding to the connecting hole. The limiting part is screwed into the limiting bolt, and the limiting bolt is tightened in the connecting hole. The bottom of the L-shaped limit block is against the gate, so that the top of the gate is clamped between the inverted L-shaped support and the L-shaped limit block. The top of the inverted L-shaped support is erected on the top of the gate, and the bottom of the inverted L-shaped support extends downward along the vertical direction of the gate. A mounting seat is set on the top of the inverted L-shaped support for installing a winch. The evenly distributed connection holes can adjust the position of the L-shaped limit block according to the thickness of the gate, so that the L-shaped limit block is against the gate, so that the top of the gate is clamped between the L-shaped limit block and the inverted L-shaped support. The rope of the winch is connected to the plate body. After the winch releases the rope, the plate body descends along the direction of the slide rail.

[0025] The cam is provided with a plurality of adjustment screws, and the adjustment screws are connected to the plurality of guide rails and the plurality of adjustment rails respectively. The plate body is connected to the connecting rod through a connecting frame, and the end of the adjusting screw with an external thread passes through the guide seat. After the energy focusing cutter is fixed, the adjusting screw can be screwed into the threaded connection hole for fixation. The adjusting screw is driven to rotate by controlling the rotating disk, thereby controlling the energy focusing cutter to adjust the angle. The hydraulic push rod drives the guide seat to adjust along the direction of the adjusting hole, thereby realizing the adjustment of the energy focusing cutter in the horizontal direction.

[0026] Furthermore, the clamping part includes a clamping frame, a clamping rod, a clamping block and an adjusting column. The adjusting column is fixedly connected to the upper and lower ends of the plate body away from the energy focusing cutter. The clamping frame is movably connected to the adjusting column. The adjusting column is screwed with a fastening nut, and the fastening nut is tightened on both sides of the clamping frame. One end of the clamping rod is fixedly connected to the four corners of the clamping frame, and the other end of the clamping rod passes through the plate body. The clamping block is fixedly connected to the other end of the clamping rod, and the clamping block is against the energy focusing cutter. Handles are provided at both ends of the clamping frame. The setting of the handle is convenient for underwater workers to apply force to the clamping frame, so that the energy-gathering cutter fits tightly against the gate. By loosening the fastening nut on the adjusting column, the clamping frame is driven to apply force to one side of the gate, so that the pressure block is against the four corners of the energy-gathering cutter, thereby driving the energy-gathering cutter to rest against the gate. The energy-gathering cutter is adsorbed on the gate through magnet one and magnet two, thereby fixing the energy-gathering cutter. When the energy-gathering cutter is fixed, the adjusting screw is screwed out of the threaded connection hole by rotating the adjusting screw in the reverse direction, thereby disengaging the outer protective plate from the energy-gathering cutter, so that the underwater working tool can be away from the gate demolition site, ensuring that the outer protective plate can be reused and recycled, saving demolition costs.

[0027] Furthermore, the connecting rod at the bottom is fixedly connected to the underwater working platform, and guardrails are provided on both sides of the top surface of the underwater working platform. The top surface of the underwater working platform is provided with foot fixing sleeves for fixing the feet of underwater workers, so that underwater workers are fixed on the underwater working platform. The setting of the underwater working platform plays a protective role for underwater operators, enabling underwater operators to quickly reach the demolition position without having to find it by themselves. At the same time, the setting of the guardrails and foot fixing sleeves plays a limiting role for underwater operators, allowing underwater operators to work stably underwater.

[0028] Furthermore, the connecting rod at the bottom is fixedly connected to a guide rod on one side of the underwater working platform, a guide block is provided on one side of the underwater working platform, a guide groove is provided on the guide rod corresponding to the guide block, and the guide block is slidably connected in the guide groove; the connecting rod at the bottom is fixedly connected to an adjustment frame on the other side of the underwater working platform, an adjustment block is provided on the other side of the underwater working platform, an adjustment cavity is provided on the adjustment frame corresponding to the adjustment block, a fixed screw is fixedly connected in the adjustment cavity, the adjustment block is provided in the adjustment cavity, the fixed screw passes through the adjustment block, and the upper and lower ends of the fixed screw are screwed with adjustment nuts, which are tightened on the upper and lower ends of the adjustment block. By screwing the adjustment nut, the adjustment block is controlled to drive the underwater working platform to be raised and lowered along the direction of the fixed screw, which is convenient for underwater workers to operate, and the setting of the guide rod and the guide block plays a guiding role in the lifting and lowering of the underwater working platform.

[0029] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0030] In the present invention.

[0031] In the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The present invention will be further described below in conjunction with the accompanying drawings:

[0033] Figure 1 It is a schematic diagram of the structure of the energy-focusing cutter in the present invention;

[0034] Figure 2 is a cross-sectional view of the energy-focusing cutter of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the energy-focusing cutter connected to the cross-tightening member in the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the cross-tightening member in the present invention;

[0037] Figure 5 It is a schematic diagram of the structure of the connection between the outer protection plate and the energy-focusing cutter in the present invention;

[0038] Figure 6It is a structural schematic diagram of the present invention when the lowering device is installed on the top of the gate;

[0039] Figure 7 It is a structural schematic diagram of the present invention when the lowering device lowers the outer protective plate;

[0040] Figure 8 It is a schematic diagram of the structure when the outer and inner protective plates of the present invention are lowered to the demolition position;

[0041] Fig. 9 It is a schematic diagram of the structure of the outer protective plate of the present invention when it is withdrawn from the demolition position;

[0042] Fig.10 It is a schematic diagram of the structure of the connection between the outer protection plate and the underwater working platform in the present invention;

[0043] Fig.11 It is a structural schematic diagram of the back side of the outer protection plate of the present invention;

[0044] Fig.12 It is a structural schematic diagram of the underwater working platform in the present invention;

[0045] Fig.13 It is a structural schematic diagram of the inverted L-shaped support in the present invention;

[0046] Fig.14 for Fig.10 The enlarged structural diagram at A in the middle;

[0047] Fig.15 for Fig.13 Schematic diagram of the enlarged structure at point B.

[0048] In the figure, 1-energy-gathering cutter; 2-gate; 3-lowering device; 4-center hole; 5-cross top fastener; 6-magnetic fixing part 1; 7-L-shaped limit block; 8-outer protection plate; 9-underwater working platform; 10-pressing part; 11-shell; 12-main explosive; 13-metal charge cover; 14-detonating detonator; 15-magnetic fixing part 2; 16-L-shaped mounting frame; 17-fixing block; 18-magnet 2; 19-cross bracket; 20-top fastener; 21-fixing seat; 22-magnet 1; 23-top fastener; 24-sleeve part; 25-locking screw; 26-adjusting slot; 27-locking nut; 28-winch; 29-mounting seat; 30-inverted L-shaped support; 3 1-slide rail; 32-slide groove; 33-connecting hole; 34-limiting part; 35-limiting bolt; 36-plate body; 37-slider; 38-pressure block; 39-adjusting screw; 40-connecting rod; 41-connecting frame; 42-adjusting hole; 43-external thread; 44-rotating plate; 45-base; 46-guide rod; 47-guide seat; 48-hydraulic push rod; 49-pressing frame; 50-pressure rod; 51-adjusting column; 52-fastening nut; 53-handle; 54-guardrail; 55-foot fixing sleeve; 56-guide rod; 57-guide block; 58-adjusting frame; 59-adjusting block; 60-adjusting cavity; 61-fixing screw; 62-adjusting nut; 63-threaded connecting hole. DETAILED DESCRIPTION

[0049] like Figures 1 to 15 As shown in the figure, a method for rapid underwater demolition of a sluice gate using an energy-gathering cutter is provided in the present invention, comprising the following steps:

[0050] a. Preparation work before demolition

[0051] 1) Preparation of the energy-gathering cutter 1: Select the energy-gathering cutter 1 of corresponding size and charge amount according to the parameters of the gate 2 and the water discharge volume of the discharge gate 2;

[0052] 2) Fixing of the lowering device 3: First, according to the demolition position of the gate 2, the lowering device 3 is arranged correspondingly on the top of the gate 2, and then the lowering device 3 is limited and reinforced by the L-shaped limit block 7.

[0053] b. Connection of energy-focusing cutter 1

[0054] The energy-gathering cutter 1 is in a frame structure. A cross-tightening member 5 is arranged in the central hole 4 of the energy-gathering cutter 1 , and a magnetic fixing member 6 is arranged on one side of the center of the cross-tightening member 5 close to the gate 2 ; a threaded connection hole 63 is arranged on the other side of the center of the cross-tightening member 5 .

[0055] c. Connection of outer protective plate

[0056] The outer protection plate 8 is provided with an adjusting screw 39 , and the end of the adjusting screw 39 is screwed into the threaded connection hole 63 of the cross-tightening member 5 , so that the outer protection plate 8 and the energy-focusing cutter 1 are fixed.

[0057] d. Underwater installation of the energy-gathering cutter 1

[0058] 1) Lowering: The underwater operator stands on the underwater operating platform 9 at the bottom of the outer protective plate 8, and lowers the outer protective plate 8, the energy-gathering cutter 1 and the underwater operator to the demolition position of the gate 2 through the lowering device 3;

[0059] 2) Fixed installation: After the energy-gathering cutter 1 is lowered underwater, the height of the energy-gathering cutter 1 is adjusted by the lowering device 3, and the adjusting screw 39 in the outer protective plate 8 is driven to adjust along the adjusting hole 42 of the outer protective plate 8 to adjust the horizontal direction of the energy-gathering cutter 1, and the adjusting screw 39 is rotated to adjust the angle of the energy-gathering cutter 1 so that the energy-gathering cutter 1 can be adjusted to the corresponding demolition position; then the pressing piece 10 on the outer protective plate 8 is controlled to apply pressure to one side of the gate 2, thereby driving the energy-gathering cutter 1 to fit closely on the gate 2, and the energy-gathering cutter 1 is fixed on the gate 2 through the magnetic fixing piece 1 6 on the cross-tightening piece 5 and the magnetic fixing piece 2 15 on the energy-gathering cutter 1.

[0060] e. Complete the demolition

[0061] After the clamping piece 10 presses the energy-gathering cutter 1 onto the gate 2, the adjusting screw 39 is controlled to rotate so that the adjusting screw 39 is disengaged from the cross-tensioning piece 5, and then the clamping piece 10 is controlled to release the energy-gathering cutter 1, and the underwater workers return to the shore and evacuate; at the same time, the L-shaped limit block 7 is loosened to move the lowering device 3 to one end of the gate 2, away from the demolition position of the energy-gathering cutter 1, and finally, after the energy-gathering cutter 1 is detonated by the detonating cap, an energy-gathering jet is generated underwater to cut the gate 2, thereby completing the demolition of the gate 2.

[0062] The shaped charge cutter 1 comprises a shell 11, a main charge 12, a metal charge liner 13, a blasting cap 14 and a second magnetic fixing part 15. The metal charge liner 13 is arranged in the shell 11, and the cavity of the metal charge liner 13 is arranged downward. A set explosion height is left at the bottom of the metal charge liner 13 and the shell 11. The main charge 12 is filled in the cavity between the cutter shell 11 and the metal charge liner 13. The blasting cap 14 is fixed to the top of the shell 11 and fits with the main charge 12. The second magnetic fixing part 15 is fixedly connected to the four corners of the center hole 4. The shell 11 is fixed to the gate 2 by the second magnetic fixing part 15. After the blasting cap 14 detonates the main charge, a shaped charge jet is generated underwater to cut the gate 2. After the detonator 14 is detonated through remote control, the main charge explodes to generate a shaped metal jet, which cuts the steel plate of the gate 2 in the shape of the shell 11, thereby realizing the need for remote, accurate and rapid demolition of the gate 2, avoiding manual cutting by operators underwater, greatly improving safety performance, and achieving the purpose of rapid demolition of the gate 2.

[0063] The second magnetic fixing member 15 includes an L-shaped mounting frame 16, a fixing block 17 and a second magnet 18. The L-shaped mounting frame 16 is fixedly connected to the bottom of the housing 11, the fixing block 17 is fixedly connected to the L-shaped mounting frame 16, and the second magnet 18 is fixedly connected to the fixing block 17. The bottom surface of the second magnet 18 is on the same plane as the bottom surface of the housing 11. The L-shaped mounting frame 16 is used to install the fixing block 17, and the second magnet 18 is fixed in the fixing block 17. The second magnet 18 is adsorbed on the gate 2 by the second magnet 18, so that the energy-concentrating cutter 1 is connected to the gate 2. The second magnet 18 can be made of neodymium magnet steel, which has the advantages of stable magnetism, high hardness, strong magnetism, etc.

[0064] The cross-tightening member 5 includes a cross bracket 19, a tightening seat 20 and a magnetic fixing member 6. The tightening seat 20 is movably connected to the four ends of the cross bracket 19. The magnetic fixing member 6 is fixedly connected to the center of the cross bracket 19 near the gate 2. The other side of the center of the cross bracket 19 is provided with a threaded connection hole 63. The magnetic fixing member 6 includes a fixing seat 21 and a magnet 22. The fixing seat 21 is fixedly connected to the cross bracket 19. The magnet 22 is fixedly connected in the fixing seat 21. The magnet 22 and the bottom surface of the energy-gathering cutter 1 are on the same plane. The cross bracket 19 is set in the center hole 4 of the energy-gathering cutter 1. By controlling the tightening seat 20 to tighten against the inner wall of the center hole 4, the cross-tightening member 5 is fixedly connected to the energy-gathering cutter 1. The magnet 22 is installed in the fixing seat 21. The fixing seat 21 fixes the magnet 22 to the cross bracket 19. The threaded connection hole 63 is used to connect the adjustment screw 39 in the outer protective plate 8.

[0065] The tightening seat 20 includes a tightening portion 23 and a sleeve portion 24. The tightening portion 23 is fixedly connected to one end of the sleeve portion 24. A through hole is opened at the other end of the sleeve portion 24. The sleeve portion 24 is sleeved on the four ends of the cross bracket 19 through the through hole. The four ends of the cross bracket 19 are fixedly connected with locking screws 25. An adjustment groove 26 is provided on the outer side of the sleeve portion 24. The adjustment groove 26 is connected with the through hole. The locking screw 25 passes through the adjusting groove 26. A locking nut 27 is screwed into the end of the locking screw 25. The locking nut 27 is tightened on the sleeve portion 24. When the cross tightening member 5 is tightened in the center hole 4 of the energy focusing cutter 1, the tightening portion 23 is tightened on the inner wall of the center hole 4. By loosening the locking nut 27 , the control sleeve portion 24 drives the tightening portion 23 to slide, so that the tightening portion 23 presses against the inner wall of the center hole 4 , and then the locking nut 27 is fixed, so that the cross tightening member 5 presses against the energy focusing cutter 1 .

[0066] The lowering device 3 includes a hoist 28, a mounting seat 29, an inverted L-shaped support 30 and a slide rail 31. The mounting seat 29 is fixedly connected between the tops of the two inverted L-shaped supports 30, the hoist 28 is fixedly connected to the mounting seat 29, the rope in the hoist 28 is connected to the outer protective plate 8, the slide rail 31 is fixedly connected to the inverted L-shaped support 30, and both ends of the outer protective plate 8 are slidably connected to the slide rail 31; a slide groove 32 is provided at the top of the inverted L-shaped support 30, and connecting holes 33 are evenly distributed on both sides of the slide groove 32. The top of the L-shaped limit block 7 is movably connected to the slide groove 32, and a limiting portion 34 is provided at the top of the L-shaped limit block 7 corresponding to the connecting hole 33. The limiting portion 34 is screwed into a limiting bolt 35, and the limiting bolt 35 is tightened in the connecting hole 33. The bottom of the L-shaped limit block 7 is against the gate 2, so that the top of the gate 2 is clamped between the inverted L-shaped support 30 and the L-shaped limit block 7. The top of the inverted L-shaped support 30 is mounted on the top of the gate 2, and the bottom of the inverted L-shaped support 30 extends downward along the vertical direction of the gate 2. A mounting seat 29 is provided on the top of the inverted L-shaped support 30 for mounting a winch 28. The evenly distributed connection holes 33 can adjust the position of the L-shaped limit block 7 according to the thickness of the gate 2, so that the L-shaped limit block 7 is against the gate 2, so that the top of the gate 2 is clamped between the L-shaped limit block 7 and the inverted L-shaped support 30. The rope of the winch 28 is connected to the plate body. After the winch 28 releases the rope, the plate body is lowered along the direction of the slide rail 31.

[0067] The outer protective plate 8 includes a plate body 36, a slider 37, a clamping member 10 and an adjusting screw 39. The slider 37 is slidably connected to the slide rail 31. The two slider 37 brackets are fixedly connected to the connecting rod 40. A connecting frame 41 is provided on the side of the plate body 36 away from the energy-focusing cutter 1. The connecting frame 41 is fixedly connected to the connecting rod 40. The plate body 36 is provided with an adjusting hole 42 corresponding to the cross-tightening member 5. One end of the adjusting screw 39 is provided with an external thread 43. The external thread 43 is matched with the threaded connection hole 63. The other end of the adjusting screw 39 passes through the adjusting hole 42. The other end of the adjusting screw 39 is provided with a rotating disk 44 A base 45 is provided at both ends of the plate body 36 located at the adjustment hole 42, a guide rod 46 is provided between the two bases 45, a guide seat 47 is movably connected to the guide rod 46, and the adjusting screw 39 passes through the guide seat 47. A hydraulic push rod 48 is fixedly connected to the base 45 on one side, and the output end of the hydraulic push rod 48 is connected to the guide seat 47. The hydraulic push rod 48 pushes the guide seat 47, and the guide seat 47 drives the adjusting screw 39 to slide and adjust along the direction of the adjustment hole 42. The clamping piece 10 is provided at the four corners of the plate body 36, and one end of the clamping piece 10 passes through the plate body 36 and abuts against the four corners of the energy focusing cutter 1. The plate body 36 is connected to the connecting rod through the connecting frame 41, and one end of the adjusting screw 39 with the external thread 43 passes through the guide seat 47. After the energy focusing cutter 1 is fixed, the adjusting screw 39 can be screwed into the threaded connection hole 63 for fixation. The adjusting screw 39 is driven to rotate by controlling the rotating disk 44, thereby controlling the energy focusing cutter 1 to adjust the angle. The hydraulic push rod 48 drives the guide seat 47 to adjust along the direction of the adjusting hole 42, thereby realizing the adjustment of the energy focusing cutter 1 in the horizontal direction.

[0068] The clamping member 10 includes a clamping frame 49, a clamping rod 50, a clamping block 38 and an adjusting column 51. The adjusting column 51 is fixedly connected to the upper and lower ends of the plate body 36 away from the energy focusing cutter 1. The clamping frame 49 is movably connected to the adjusting column 51. The adjusting column 51 is screwed with a fastening nut 52. The fastening nut 52 is tightened on both sides of the clamping frame 49. One end of the clamping rod 50 is fixedly connected to the four corners of the clamping frame 49. The other end of the clamping rod 50 passes through the plate body 36. The clamping block 38 is fixedly connected to the other end of the clamping rod 50. The clamping block 38 rests on the energy focusing cutter 1. Handles 53 are provided at both ends of the clamping frame 49. The setting of the handle 53 is convenient for underwater workers to apply force to the clamping frame 49, so that the energy-gathering cutter 1 fits tightly against the gate 2. By loosening the fastening nut 52 on the adjusting column 51, the clamping frame 49 is driven to apply force to one side of the gate 2, so that the pressure block 38 is pressed against the four corners of the energy-gathering cutter 1, thereby driving the energy-gathering cutter 1 to press against the gate 2. The energy-gathering cutter 1 is adsorbed on the gate 2 through the magnet 1 22 and the magnet 2 18, so as to achieve the fixation of the energy-gathering cutter 1. When the energy-gathering cutter 1 is fixed, the adjusting screw 39 is rotated in the reverse direction so that the adjusting screw 39 is screwed out of the threaded connection hole 63, so that the outer protective plate 8 can be disengaged from the energy-gathering cutter 1, so that the underwater working tool can be kept away from the demolition position of the gate 2, ensuring that the outer protective plate 8 can be reused, saving the demolition cost.

[0069] The connecting rod 40 at the bottom is fixedly connected to the underwater working platform 9, and guardrails 54 are provided on both sides of the top surface of the underwater working platform 9. The top surface of the underwater working platform 9 is provided with foot fixing sleeves 55 for fixing the feet of underwater workers so that the underwater workers are fixed on the underwater working platform 9. The setting of the underwater working platform 9 plays a protective role for underwater operators, enabling underwater operators to quickly reach the demolition position without having to find it by themselves. At the same time, the setting of the guardrails 54 and the foot fixing sleeves 55 plays a limiting role for underwater operators, allowing underwater operators to work stably underwater.

[0070] The connecting rod 40 at the bottom is fixedly connected with a guide rod 56 on one side corresponding to the underwater working platform 9, and a guide block 57 is provided on one side of the underwater working platform 9. The guide rod 56 is provided with a guide groove corresponding to the guide block 57, and the guide block 57 is slidably connected in the guide groove; the connecting rod 40 at the bottom is fixedly connected with an adjustment frame 58 on the other side corresponding to the underwater working platform 9, and an adjustment block 59 is provided on the other side of the underwater working platform 9. The adjustment frame 58 is provided with an adjustment cavity 60 corresponding to the adjustment block 59, and a fixed screw 61 is fixedly connected in the adjustment cavity 60. The adjustment block 59 is arranged in the adjustment cavity 60, and the fixed screw 61 passes through the adjustment block 59. The upper and lower ends of the fixed screw 61 are screwed with adjustment nuts 62, and the adjustment nuts 62 are tightened on the upper and lower ends of the adjustment block 59. By screwing the adjustment nut 62, the adjustment block 59 is controlled to drive the underwater working platform 9 to be raised and lowered along the direction of the fixed screw 61, which is convenient for underwater workers to operate. The setting of the guide rod 56 and the guide block 57 plays a guiding role in the lifting and lowering of the underwater working platform 9.

[0071] In the present invention, the energy-gathering cutter 1 is first connected to the outer protective plate 8 on the water, which is easy to operate. The lowering equipment 3 lowers the underwater workers, the outer protective plate 8 and the energy-gathering cutter 1 to the underwater demolition site at the same time, so that the underwater workers can quickly reach the demolition site. The underwater workers adjust the position of the energy-gathering cutter 1 through the isolation of the outer protective plate 8 to avoid direct contact between the energy-gathering cutter 1 and the underwater workers. The outer protective plate 8 protects the underwater workers, greatly improving the safety performance of underwater operations. At the same time, the lowering equipment 3 and the outer protective plate 8 are moved to one end of the gate 2 away from the demolition site, so that the lowering equipment 3 and the outer protective plate 8 can be recycled, which greatly saves the cost investment.

[0072] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A method for rapid underwater demolition of a sluice gate using an energy-gathering cutter, characterized in that The steps include: a. Preparation work before demolition 1) Preparation of energy-gathering cutter: Select energy-gathering cutter of corresponding size and charge according to gate parameters and water discharge of sluice gate; 2) Fixing of the lowering equipment: First, arrange the lowering equipment on the top of the gate according to the demolition position of the gate, and then limit and reinforce the lowering equipment with L-shaped limit blocks; b. Connection of energy-gathering cutter The energy-gathering cutter is a frame structure. A cross-tightening piece is arranged in the center hole of the energy-gathering cutter, and a magnetic fixing piece is arranged at one side of the center of the cross-tightening piece close to the gate; a threaded connection hole is arranged at the other side of the center of the cross-tightening piece; c. Connection of outer protective plate The outer protective plate is provided with an adjusting screw, and the end of the adjusting screw is screwed into the threaded connection hole of the cross-tightening member, so that the outer protective plate and the energy-focusing cutter are fixed; d. Underwater installation of energy-concentrating cutter 1) Lowering: The underwater workers stand on the underwater working platform at the bottom of the outer protective plate, and lower the outer protective plate, the energy-gathering cutter and the underwater workers to the gate demolition position at the same time through the lowering equipment; 2) Fixed installation: After the energy-gathering cutter is lowered underwater, the height of the energy-gathering cutter is adjusted through the lowering equipment, and the adjusting screw in the outer protective plate is driven to adjust along the adjusting hole of the outer protective back plate to adjust the horizontal direction of the energy-gathering cutter, and the adjusting screw is turned to adjust the angle of the energy-gathering cutter so that the energy-gathering cutter can be adjusted to the corresponding demolition position; then the pressing piece on the outer protective plate is controlled to apply pressure to one side of the gate, thereby driving the energy-gathering cutter to fit closely on the gate, and the energy-gathering cutter is fixed on the gate through the magnetic fixing piece 1 on the cross top fixing piece and the magnetic fixing piece 2 on the energy-gathering cutter; e. Complete the demolition After the clamping piece presses the energy-gathering cutter onto the gate, the adjusting screw is controlled to rotate so that the adjusting screw is disengaged from the cross-tensioning piece, and then the clamping piece is controlled to release the energy-gathering cutter, and the underwater workers return to the shore and evacuate; at the same time, the L-shaped limit block is loosened to move the lowering equipment to one end of the gate, away from the demolition position of the energy-gathering cutter, and finally the energy-gathering cutter is detonated by the detonating cap, generating an energy-gathering jet underwater to cut the gate, completing the demolition of the gate.

2. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 1, characterized in that: The energy-gathering cutter comprises a shell, a main charge, a metal charge liner, a blasting cap and two magnetic fixing parts. The charge liner is arranged in the shell, the cavity of the charge liner is arranged downward, the charge liner and the bottom of the shell have a set explosion height, the main charge is filled in the cavity between the cutter shell and the metal charge liner, the blasting cap is fixed on the top of the shell and fits with the main charge, the two magnetic fixing parts are fixedly connected at the four corners of the center hole, the shell is fixed to the gate by the two magnetic fixing parts, and after the blasting cap detonates the main charge, an energy-gathering jet is generated underwater to cut the gate.

3. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 2, characterized in that: The second magnetic fixing part includes an L-shaped mounting frame, a fixing block and a second magnet. The L-shaped mounting frame is fixedly connected to the bottom of the shell, the fixing block is fixedly connected to the L-shaped mounting frame, the second magnet is fixedly connected to the fixing block, and the bottom surface of the second magnet is on the same plane as the bottom surface of the shell.

4. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 1, characterized in that: The cross-tensioning member includes a cross bracket, a tensioning seat and a magnetic fixing member. The tensioning seat is movably connected to the four ends of the cross bracket. The magnetic fixing member is fixedly connected to one side of the center of the cross bracket close to the gate. A threaded connection hole is provided on the other side of the center of the cross bracket. The magnetic fixing member includes a fixing seat and a magnet. The fixing seat is fixedly connected to the cross bracket. The magnet is fixedly connected to the fixing seat. The magnet is on the same plane as the bottom surface of the energy focusing cutter.

5. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 4, characterized in that: The tightening seat includes a tightening portion and a sleeve portion, the tightening portion is fixedly connected to one end of the sleeve portion, and a through hole is opened at the other end of the sleeve portion, and the sleeve portion is sleeved on the four ends of the cross bracket through the through hole, and the four ends of the cross bracket are fixedly connected with locking screws, and an adjustment groove is provided on the outer side of the sleeve portion, and the adjustment groove is connected with the through hole, and the locking screw passes through the adjustment groove, and a locking nut is screwed into the end of the locking screw, and the locking nut is tightened on the sleeve portion. When the cross tightening piece is tightened in the center hole of the energy focusing cutter, the tightening portion is tightened on the inner wall of the center hole.

6. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 1, Features: The lowering equipment includes a winch, a mounting seat, an inverted L-shaped support and a slide rail, wherein the mounting seat is fixedly connected between the tops of the two inverted L-shaped supports, the winch is fixedly connected to the mounting seat, the rope in the winch is connected to the outer protective plate, the slide rail is fixedly connected to the inverted L-shaped support, and both ends of the outer protective plate are slidably connected to the slide rail; a slide groove is provided on the top of the inverted L-shaped support, and connecting holes are evenly distributed on both sides of the slide groove, the top of the L-shaped limit block is movably connected to the slide groove, and a limiting part is provided on the top of the L-shaped limit block corresponding to the connecting hole, the limiting part is screwed into the limiting bolt, and the limiting bolt is tightened in the connecting hole, and the bottom of the L-shaped limit block is against the gate, so that the top of the gate is clamped between the inverted L-shaped support and the L-shaped limit block.

7. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 6, characterized in that: The outer protective plate comprises a plate body, a slider, a clamping piece and an adjusting screw, the slider is slidably connected to the slide rail, two slider brackets are fixedly connected to a connecting rod, a connecting frame is provided on the side of the plate body away from the energy focusing cutter, the connecting frame is fixedly connected to the connecting rod, the plate body is provided with an adjusting hole corresponding to the cross top tightening piece, one end of the adjusting screw is provided with an external thread, the external thread is matched with the threaded connection hole, the other end of the adjusting screw passes through the adjusting hole, and the other end of the adjusting screw is provided with a rotating disk, bases are provided at both ends of the plate body located at the adjusting hole, a guide rod is provided between the two bases, a guide seat is movably connected to the guide rod, the adjusting screw passes through the guide seat, and a hydraulic push rod is fixedly connected to the base on one side, the output end of the hydraulic push rod is connected to the guide seat, the hydraulic push rod pushes the guide seat, and the guide seat drives the adjusting screw to slide and adjust along the direction of the adjusting hole, and the clamping piece is provided at the four corners of the plate body, and one end of the clamping piece passes through the plate body and abuts against the four corners of the energy focusing cutter.

8. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 7, characterized in that: The clamping member includes a clamping frame, a clamping rod, a clamping block and an adjusting column. The adjusting column is fixedly connected to the upper and lower ends of the plate body away from the energy focusing cutter. The clamping frame is movably connected to the adjusting column. A fastening nut is screwed into the adjusting column. The fastening nut is tightened on both sides of the clamping frame. One end of the clamping rod is fixedly connected to the four corners of the clamping frame. The other end of the clamping rod passes through the plate body. The clamping block is fixedly connected to the other end of the clamping rod. The clamping block is against the energy focusing cutter. Handles are provided at both ends of the clamping frame.

9. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 7, characterized in that: The connecting rod at the bottom is fixedly connected to an underwater working platform, guardrails are provided on both sides of the top surface of the underwater working platform, and a foot fixing sleeve is provided on the top surface of the underwater working platform for fixing the feet of underwater workers so that the underwater workers are fixed on the underwater working platform.

10. The method for rapid underwater demolition of a sluice gate using an energy-gathering cutter according to claim 9, characterized in that: The connecting rod located at the bottom is fixedly connected with a guide rod on one side corresponding to the underwater working platform, a guide block is provided on one side of the underwater working platform, the guide rod is provided with a guide groove corresponding to the guide block, and the guide block is slidably connected in the guide groove; the connecting rod located at the bottom is fixedly connected with an adjustment frame on the other side corresponding to the underwater working platform, an adjustment block is provided on the other side of the underwater working platform, the adjustment frame is provided with an adjustment cavity corresponding to the adjustment block, a fixing screw is fixedly connected in the adjustment cavity, the adjustment block is provided in the adjustment cavity, the fixing screw passes through the adjustment block, and the upper and lower ends of the fixing screw are screwed with adjusting nuts, and the adjusting nuts are tightened at the upper and lower ends of the adjusting block.

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