Energy-gathered cutter fixing device for dismantling I-shaped steel stand column of steel tower

Abstract

The utility model provides an energy-gathered cutter fixing device for dismantling a steel tower I-shaped steel stand column, which comprises a rotating seat, supporting legs are arranged at the bottom of the rotating seat, and a mounting seat is arranged at the top of the rotating seat. A first linear energy-gathered cutter making contact with a wing plate on one side of the I-shaped steel and two second linear energy-gathered cutters arranged in a notch of the I-shaped steel in a clamped mode are arranged on the installation base, and charges are arranged in the first linear energy-gathered cutter and the second linear energy-gathered cutters. Energy-gathered grooves of the first linear energy-gathered cutter and the second linear energy-gathered cutter face the I-shaped steel, and electric detonators are arranged in the energy-gathered grooves. According to the utility model, stable support is provided for the shaped charge blasting tool, the stability of the device during working is ensured, and the safety risk is greatly reduced; precise positioning blasting of the I-shaped steel stand column of the steel tower is achieved, the dismantling precision is greatly improved, the situation of incomplete dismantling or excessive dismantling is effectively avoided, and the quality of dismantling engineering is improved.

Description

Technical Field

[0001] This utility model relates to the field of demolition technology, and in particular to a shaped charge cutter fixing device for demolishing I-beam columns of steel towers. Background Technology

[0002] The demolition of large steel structure buildings sometimes requires the removal of damaged or scrapped solid (or hollow) steel frames and hollow pipes, especially when space is limited on one side. Ordinary cutting and demolition methods (such as mechanical cutting and gas cutting) have limitations such as high difficulty in implementation, high risk, low efficiency, poor applicability, complex operation, and inconvenience in use. Sometimes, when personnel cannot remain in the building for an extended period, the limitations of the above methods become even more pronounced.

[0003] In view of the problems existing in the above-mentioned conventional cutting and demolition methods, the method of shaped charge blasting cutting can be adopted, and the shaped charge blasting cutting technology can be used for the cutting and demolition of the above-mentioned structures.

[0004] In the demolition of steel tower structures by explosives, shaped charge blasting tools play a crucial role in effectively destroying I-beam columns.

[0005] A linear shaped charge cutter is a blasting technique that utilizes the shaped charge effect to destroy surrounding rock, reinforced concrete, or metal structures. A linear shaped charge cutter consists of a robust metal outer shell, a charge section, and a metal liner. The end of the outer shell is typically equipped with a detonator or initiator (such as a detonator or electric detonator) to initiate the detonation. The charge section is filled with high-energy explosives, which are usually arranged linearly within the tube to ensure uniform release of explosive energy. The metal liner, also known as a shaped charge shield or cone shield, is compressed and accelerated at high speed by the shock wave of the explosive during the detonation, forming a high-velocity, high-temperature metal jet called a "detonation jet."

[0006] However, in practical applications, how to stably and accurately fix the linear shaped charge cutter to the I-beam column of the steel tower has become a pressing problem. Currently, due to the lack of reliable fixing devices, shaped charge blasting tools are often difficult to maintain in an ideal position during installation, leading to deviations during the blasting process. This not only significantly reduces the blasting effect, failing to achieve the expected demolition purpose, but may also result in incomplete or excessive demolition, seriously affecting the progress of subsequent projects. Once the linear shaped charge cutter shifts before blasting, it is highly likely to trigger an uncontrollable explosion accident, posing a serious threat to the lives of on-site personnel.

[0007] Therefore, developing a device that can precisely fix the position of a linear energy-concentrating cutter is of vital importance for improving the efficiency, safety, and accuracy of steel tower I-beam column demolition work. Utility Model Content

[0008] The purpose of this utility model is to provide a high-energy cutting tool fixing device for dismantling I-beam columns of steel towers, so as to solve the above-mentioned technical problems.

[0009] This utility model provides a device for fixing a shaped charge cutter for dismantling I-beam columns of steel towers. It includes a rotating base with legs mounted at its bottom and a mounting base at its top. The mounting base is equipped with a first linear shaped charge cutter that contacts one side flange of the I-beam, and two second linear shaped charge cutters clamped within the slots of the I-beam. The first and second linear shaped charge cutters contain explosive charges, and their shaped charge slots face the I-beam. Each shaped charge slot contains an electric detonator.

[0010] Furthermore, the rotating seat is rotatably connected to the support leg.

[0011] Furthermore, the support leg includes a positioning support leg and a rear support leg. The top end of the positioning support leg is fixedly connected to a hinged disc, which is hinged to a rotating shaft mounted on the rotating seat. The top end of the rear support leg is provided with a connecting shaft, which is hinged to a hinge lug mounted on the rotating seat.

[0012] Furthermore, the outrigger includes a telescopic tube and a support plate, a locking bolt is provided at the telescopic port of the telescopic tube, and the bottom end of the telescopic tube is hinged to the support plate.

[0013] Furthermore, ground nails are provided on the support plate.

[0014] Furthermore, an anti-slip layer is provided at the bottom of the support plate.

[0015] Furthermore, the mounting base is provided with a moving plate that drives the first linear energy-concentrating cutter and the second linear energy-concentrating cutter to move along the direction close to or away from the I-beam.

[0016] Furthermore, a rack is mounted on the movable plate, and a drive gear that meshes with the rack is provided in the mounting base. The drive gear is provided with a drive rod that extends to the outside of the mounting base and has a drive handle mounted at its end.

[0017] Furthermore, the first linear energy-concentrating cutter is installed at one end of the moving plate near the I-beam, and the second linear energy-concentrating cutter is symmetrically arranged on both sides of the first linear energy-concentrating cutter and connected to the moving plate through a connecting plate.

[0018] Furthermore, a rotatably connected bidirectional screw is installed on the movable plate near the first linear energy-concentrating cutter. The two ends of the bidirectional screw extend to both sides of the movable plate, and a rotating handle is installed at one end. The movable plate is threadedly connected to the threaded section of the corresponding bidirectional screw through a threaded sleeve. A guide rod is also installed on the movable plate, and the connecting plate is slidably connected to the guide rod.

[0019] This invention provides stable support for the shaped charge blasting tool by setting out support legs, a rotating seat, and a mounting base, ensuring the stability of the device during operation and greatly reducing safety risks. The mounting base is equipped with a first linear shaped charge cutter and a second linear shaped charge cutter corresponding to the I-beam, enabling precise positioning and blasting of the I-beam column of the steel tower, greatly improving the accuracy of demolition, effectively avoiding incomplete or excessive demolition, and improving the quality of the demolition project. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the mounting base of this utility model;

[0023] Figure 3 This is a schematic diagram of the rotating seat structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the mounting base of this utility model;

[0025] Figure 5 This is a schematic diagram of the motion of the present invention;

[0026] Figure 6 This is a schematic diagram illustrating the fit of this utility model;

[0027] Figure 7 This is a schematic diagram of the linear energy-concentrating cutter of this utility model;

[0028] Figure 8 This is a schematic diagram of the overall structure of the anti-slip layer of this utility model;

[0029] Figure 9This is a structural diagram of the connecting plate in Embodiment 2 of this utility model;

[0030] Explanation of reference numerals in the attached figures:

[0031] In the diagram: 1-Rotating seat, 11-Base plate, 12-Hinge ear, 13-Slot, 14-Rubber layer, 15-Damper, 21-Positioning leg, 22-Rear seat leg, 23-Hinge disc, 24-Support plate, 25-Ground nail, 26-Anti-slip layer, 3-Mounting seat, 31-Insertion block, 32-Slide groove, 4-Drive plate, 41-Rack, 42-Drive gear, 43-Drive rod, 44-Drive handle, 45-Limit block, 5-Connecting plate, 51-T-slot, 52-T-block, 53-Shock-absorbing spring, 61-First linear energy-concentrating cutter, 62-Second linear energy-concentrating cutter, 63-Shell, 64-Energy-concentrating groove, 65-Charging charge, 71-Bidirectional screw, 72-Rotating handle, 73-Guide rod, 81-Laser positioning device, 82-Damped universal ball joint, 9-I-beam; Detailed Implementation

[0032] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Example 1

[0036] like Figures 1-8 As shown:

[0037] A device for fixing a shaped charge cutter for dismantling I-beam columns of steel towers includes a rotating base 1, on which legs for supporting the overall device are installed. The top of the rotating base 1 is provided with a mounting base 3 for fixing a first linear shaped charge cutter 61 and two second linear shaped charge cutters 62. The V-shaped energy-concentrating groove 64 of the first linear shaped charge cutter 61 is disposed facing one side flange of the I-beam 9. The second linear shaped charge cutters 62 are disposed in the groove of the I-beam 9 and the V-shaped energy-concentrating groove 64 of the second linear shaped charge cutter 62 faces the web of the I-beam 9.

[0038] like Figures 1-3 As shown, the rotating base 1 includes a base plate 11 and two hinge ears 12 mounted on the rear end face of the base plate 11, and a rotating shaft passes through the rotating base 1.

[0039] The rotating base 1 is rotatably connected to the support leg, and the rotatable connection enables the overall device to be unfolded for support and retracted for storage.

[0040] The support legs in this device include positioning support legs 21 and rear support legs 22. In this embodiment, there are two positioning support legs 21 and one rear support leg 22. The positioning support legs 21 and the rear support legs 22 are arranged at intervals.

[0041] The top end of the positioning leg 21 is fixedly connected to a hinged disc 23, which is hinged to the rotating shaft on the rotating seat 1; a hinged ear 12 is provided on the rear end face of the rotating seat 1, and a connecting shaft is provided at the top end of the rear seat leg 22. The rear seat leg 22 is hinged to the rotating seat 1 through the hole of the hinged ear 12 via the connecting shaft.

[0042] The positioning support leg 21 is positioned close to the I-beam 9, and the rear support leg 22 is positioned away from the I-beam 9.

[0043] Both the positioning outrigger 21 and the rear seat outrigger 22 are telescopic tubes. Locking bolts are provided at the telescopic ends of the telescopic tubes. The length of the telescopic tubes can be adjusted and fixed by turning the locking bolts.

[0044] In this embodiment, there are three legs. When the two legs are spaced apart, they rotate in the same direction when unfolded. When the leg in the middle position is unfolded, it rotates in the opposite direction to the other two legs. The three legs form a triangular support structure.

[0045] like Figure 1 , Figure 2 and Figure 8 As shown, the bottom end of the telescopic tube is hinged to the support plate 24. Operators can choose different stabilization methods for the support plate 24 according to the differences in the site environment: the support plate 24 is equipped with ground nails 25 for stable support in outdoor environments; the bottom of the support plate 24 is equipped with a rubber anti-slip layer 26 for stable support in relatively flat and smooth environments where the ground structure cannot be damaged.

[0046] like Figures 1-4 As shown, a mounting base 3 is connected to the base plate 11 of the rotating seat 1. A slot 13 is provided on the top surface of the rotating seat 1, and a plug 31 is provided on the bottom surface of the mounting base 3, which is inserted into the slot 13. Both the slot 13 and the plug 31 are T-shaped structures that cooperate with each other.

[0047] like Figure 2 As shown, a damper 15 is provided in the slot 13 in the direction of the rear seat of the plug 31, and a rubber layer 14 is filled between the slot 13 and the plug 31.

[0048] By setting up the damper 15, it is possible to absorb and dissipate recoil energy when the linear shaped charge cutter is ignited, reducing the impact of recoil force on the fixed device and surrounding structures, extending the service life of the equipment, and ensuring the stability of blasting operations; it can evenly distribute the recoil force, avoiding excessive local stress that could cause local deformation, rupture, or other damage to the fixed device or shaped charge detonator; it effectively suppresses the recoil displacement of the shaped charge detonator at the moment of blasting, keeping it in the predetermined position, ensuring the accuracy of the shaped charge jet direction, improving blasting accuracy and effect, achieving precise destruction of the target, and reducing the impact on surrounding non-target areas; it reduces the vibration caused by the recoil of the shaped charge detonator, reducing the interference of vibration on the surrounding environment.

[0049] By setting the rubber layer 14, the impact on the corresponding parts of the fixing device can be buffered, preventing the impact force of the shaped charge explosion from damaging the corresponding connection position of the device and extending the service life of the shaped charge explosion tube; it can also absorb and weaken some of the vibration generated when the shaped charge explosion is activated, reduce the transmission of vibration to the fixing device and the surrounding environment, reduce the vibration impact on the surrounding structure and equipment, and help protect the stability of the structure.

[0050] like Figure 2 and Figure 4 As shown, the mounting base 3 is provided with a slide groove 32, and a drive plate 4 is provided in the slide groove 32 to drive the first linear energy-concentrating cutter 61 and the second linear energy-concentrating cutter 62 to move along the direction close to the I-beam 9 or away from the I-beam 9.

[0051] A rack 41 is mounted on the drive plate 4, and a drive gear 42 that meshes with the rack 41 is provided in the mounting base 3. A drive rod 43 that extends to the outside of the mounting base 3 and has a drive handle 44 mounted on its end is provided on the drive gear 42.

[0052] A limit block 45 is provided at the tail end of the drive plate 4 to prevent the rack 41 from moving excessively and to avoid the problem of tooth disengagement between the drive gear 42 and the rack 41 due to excessive movement of the rack 41.

[0053] like Figure 5 and Figure 6 As shown, the first linear energy-concentrating cutter 61 is installed on one end of the drive plate 4 near the I-beam 9, and the second linear energy-concentrating cutter 62 is symmetrically arranged on both sides of the first linear energy-concentrating cutter 61 and connected to the drive plate 4 through the connecting plate 5.

[0054] like Figure 7 As shown, the first linear energy-concentrating cutter 61 and the second linear energy-concentrating cutter 62 have metal housings 63, a V-shaped energy-concentrating groove 64 is provided on one side of the housing 63, and a charge 65 is provided inside the housing.

[0055] The first linear shaped charge cutter 61 and the second linear shaped charge cutter 62 are filled with emulsion explosives 65, and electric detonators for triggering detonation are installed in the shaped charge slots 64 of the first linear shaped charge cutter 61 and the second linear shaped charge cutter 62. This technical solution is prior art, and the specific settings will not be described in detail.

[0056] In addition to using a linear energy-concentrating cutter as described above, the first linear energy-concentrating cutter 61 can also be designed as a tubular structure, with its energy-concentrating groove 64 formed on its outer circumferential surface; the second linear energy-concentrating cutter 62 can be designed as a block structure to facilitate adaptation to the slot of the I-beam 9, with its energy-concentrating groove 64 formed on one side and both end faces, the energy-concentrating groove 64 being V-shaped, and the V-shaped energy-concentrating groove 64 of the second linear energy-concentrating cutter 62 facing the web of the I-beam 9 and the two adjacent flanges. The first linear energy-concentrating cutter 61 and the second linear energy-concentrating cutter 62 can also be configured with other suitable structures without limitation.

[0057] like Figure 5 and Figure 6As shown, a bidirectional screw 71 is rotatably connected to the drive plate 4 near the first linear energy-concentrating cutter 61. The two ends of the bidirectional screw 71 extend to both sides of the drive plate 4, and a rotating handle 72 is installed at one end. The drive plate 4 is threadedly connected to the threaded section of the corresponding bidirectional screw 71 through a threaded sleeve. A guide rod 73 is also installed on the drive plate 4, and the connecting plate 5 is slidably connected to the guide rod 73.

[0058] A laser positioning device 81 is installed near the I-beam 9 on the rotating base 1. The laser positioning device 81 is connected to the rotating base 1 through a damped universal ball joint 82.

[0059] The laser locator 81 can emit a highly directional and collimated laser beam to accurately indicate the target position that the blasting device needs to be aligned with. By aligning the laser beam with a specific point or area on the target, the operator can ensure that the direction and position of the shaped charge blasting device are completely accurate, thereby achieving a precise strike on the target and avoiding poor blasting results due to positioning deviations.

[0060] When using this device, it is first set up near the I-beam 9 column of the steel tower structure; the operator determines the setting position of the device and nails the ground nails 25 on the support plate 24 of the positioning leg 21 into the foundation for fixation; the lengths of the positioning leg 21 and the rear support leg 22 are adjusted to determine the height of the shaped charge demolition point, and the ground nails 25 on the support plate 24 of the rear support leg 22 are nailed into the foundation for fixation; the laser positioning instrument 81 is turned on to mark the position of the demolition point by laser; the drive handle 44 is turned to move the first linear shaped charge cutter 61 and the second linear shaped charge cutter 62 toward the I-beam 9, ensuring that the V-shaped shaped charge groove 64 of the first linear shaped charge cutter 61 corresponds to one side flange of the I-beam 9; the rotating handle 72 is turned to move the two second linear shaped charge cutters 62 toward each other and fall into the groove of the I-beam 9, and then the subsequent shaped charge demolition work is carried out.

[0061] Example 2

[0062] like Figure 9 As shown, in this embodiment, the connecting plate 5 and the second linear energy-concentrating cutter 62 are connected by a T-slot 51 and a T-block 52.

[0063] A damping spring 53 is provided between the two ends of the T-shaped block 52 located in the T-slot 51 and the inner wall of the T-slot 51.

[0064] By setting a damping spring 53, the reaction force generated at the moment of the shaped charge explosion of the first linear shaped charge cutter 61 can be avoided, which would cause the second linear shaped charge cutter 62, placed in the slot of the I-beam 9, to move along the rearward direction of the first linear shaped charge cutter 61, resulting in a collision between the second linear shaped charge cutter 62 and the I-beam 9 and damage. This ensures that the setting position of the second linear shaped charge cutter 62 is accurate, and further improves the accuracy and stability of the shaped charge explosion.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for fixing a high-energy cutter used for dismantling I-beam columns of steel towers, characterized in that: The device includes a rotating base with legs mounted at its bottom and a mounting base at its top. The mounting base is equipped with a first linear shaped charge cutter that contacts one side flange of the I-beam and two second linear shaped charge cutters that are clamped and disposed within the slots of the I-beam. The first and second linear shaped charge cutters contain explosive charges, and the shaped charge slots of the first and second linear shaped charge cutters face the I-beam. Electric detonators are disposed within the shaped charge slots.

2. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 1, characterized in that: The rotating base is rotatably connected to the support leg.

3. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 2, characterized in that: The support leg includes a positioning support leg and a rear support leg. The top end of the positioning support leg is fixedly connected to a hinged disc, which is hinged to a rotating shaft mounted on the rotating seat. The top end of the rear support leg is provided with a connecting shaft, which is hinged to a hinge lug mounted on the rotating seat.

4. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 1, characterized in that: The outrigger includes a telescopic tube and a support plate. A locking bolt is provided at the telescopic port of the telescopic tube, and the bottom end of the telescopic tube is hinged to the support plate.

5. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 4, characterized in that: Ground nails are installed on the support plate.

6. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 4, characterized in that: The bottom of the support plate is provided with an anti-slip layer.

7. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 1, characterized in that: The mounting base is equipped with a moving plate that drives the first linear energy-concentrating cutter and the second linear energy-concentrating cutter to move along the direction close to or away from the I-beam.

8. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 7, characterized in that: A rack is mounted on the movable plate, and a drive gear that meshes with the rack is provided in the mounting base. A drive rod that extends to the outside of the mounting base and has a drive handle mounted at its end is provided on the drive gear.

9. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 7, characterized in that: The first linear energy-concentrating cutter is installed at one end of the moving plate near the I-beam, and the second linear energy-concentrating cutter is symmetrically arranged on both sides of the first linear energy-concentrating cutter and connected to the moving plate through a connecting plate.

10. The energy-concentrating cutter fixing device for dismantling I-beam columns of steel towers according to claim 9, characterized in that: A rotatably connected bidirectional screw is installed on the movable plate near the first linear energy-concentrating cutter. The two ends of the bidirectional screw extend to both sides of the movable plate, and a rotating handle is installed at one end. The movable plate is threadedly connected to the threaded section of the corresponding bidirectional screw through a threaded sleeve. A guide rod is also installed on the movable plate, and the connecting plate is slidably connected to the guide rod.

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