A tower crane electrical emergency circuit fixing device

Abstract

The application relates to a tower crane electrical emergency circuit fixing device and belongs to the technical field of tower crane operation auxiliary facilities. The device comprises a tower crane handrail, one side of the tower crane handrail is provided with an L-shaped mounting plate, the other side of the tower crane handrail is provided with a vertical mounting plate, the bottom end of the tower crane handrail is provided with a plurality of limiting rods, the plurality of limiting rods are fixedly connected with the L-shaped mounting plate, the plurality of limiting rods are clampedly connected with the vertical mounting plate, a plurality of second dovetail grooves are formed in the bottom end of one side of the L-shaped mounting plate, a second dovetail block is clampedly connected in the plurality of second dovetail grooves, and a mounting seat is fixedly connected at the other end of the plurality of second dovetail blocks; a plurality of fixing assemblies are arranged at the other end of the L-shaped mounting plate. The combination design of the claw type clamping block and the flexible iron sheet can adjust the opening and closing amplitude according to the cable diameter, and the device is convenient for adapting to emergency cables with various diameters.

Description

Technical Field

[0001] This invention relates to the field of tower crane operation auxiliary facilities technology, and in particular to a tower crane electrical emergency circuit fixing device. Background Technology

[0002] The tower crane electrical circuit fixing device is a special mechanical clamp bracket designed to securely bind and install extremely important power and signal cables on tower crane structures that are high up, vibrating, or swaying.

[0003] Currently, traditional fixing methods on the market mostly use cable ties, metal clips for direct locking, or simple bracket welding. Cable ties are prone to aging and breakage under the high-frequency vibration of tower cranes and the alternating high and low temperatures of outdoor environments, leading to loosening and displacement of cables. They may even rub against the metal structure of the tower crane, causing damage to the insulation layer and resulting in safety hazards such as short circuits and leakage. In addition, metal clip fixing methods have poor adaptability and cannot flexibly match different specifications of emergency cables. Furthermore, the tightening force is difficult to control. If it is too tight, it may squeeze the internal conductor of the cable, while if it is too loose, it may not be able to withstand the shaking and impact during tower crane operation. At the same time, the disassembly of simple bracket welding or bolt fixing structures is cumbersome and requires additional tools for disassembly. When emergency circuits need to be repaired or cables replaced, a lot of time is required for disassembly, which seriously affects the efficiency of emergency response, severely restricts the improvement of construction efficiency and operational safety, and reduces project efficiency.

[0004] Therefore, this application provides a tower crane electrical emergency circuit fixing device to meet the requirements. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a tower crane electrical emergency circuit fixing device to solve the problems of cable displacement caused by the high-frequency vibration of the tower crane due to ordinary binding methods, poor compatibility of metal clips that easily over-compress the cable, and cumbersome disassembly process of simple welding and bolt fixing methods that require a lot of time to disassemble.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A tower crane electrical emergency circuit fixing device includes a tower crane railing. An L-shaped mounting plate is provided on one side of the railing, and a vertical mounting plate is provided on the other side. Several limiting rods are provided at the bottom of the railing, each fixedly connected to the L-shaped mounting plate and engaging with the vertical mounting plate. Several second dovetail grooves are formed through one bottom side of the L-shaped mounting plate, each containing a second dovetail block. A mounting base is fixedly connected to the other end of each second dovetail block. Several fixing components are provided at the other end of the L-shaped mounting plate for fixing electrical cables. A first locking component is provided on one side of each fixing component for locking the fixing components. A second locking component is provided at the upper end of the mounting base for fixing the L-shaped mounting plate and the vertical mounting plate.

[0008] Optionally, the fixing assembly includes a plurality of claw-type clamping blocks, which are disposed on the outside of the L-shaped mounting plate, are hinged to each other, and have a first buffer pad adhered to the inner top of each claw-type clamping block and a second buffer pad adhered to the inner bottom of each claw-type clamping block.

[0009] Optionally, the fixing component further includes a plurality of limiting sleeves, which are respectively fixedly connected to the outside of the claw-type clamping block. A flexible iron sheet is slidably connected to the inside of the plurality of limiting sleeves. One end of the flexible iron sheet is fixedly connected to the first limiting sleeve, and the first limiting sleeve is fixedly connected to the outer wall of the L-shaped mounting plate. The other end of the flexible iron sheet is provided with a plurality of first inclined grooves.

[0010] Optionally, the first locking assembly further includes a first connecting seat, which is fixedly connected to the outer wall of the L-shaped mounting plate. A locking block is fixedly connected to the center of one side of the first connecting seat. A first eccentric wheel is provided on one side of the locking block. A rotating shaft is fixedly connected to the inner wall of one side of the first eccentric wheel. The two ends of the rotating shaft are respectively rotatably connected to the inner wall of the first connecting seat.

[0011] Optionally, the first locking assembly further includes a first torsion spring, which is sleeved outside the center of the rotating shaft, and a protrusion is provided on one side of the first connecting seat, the protrusion being fixedly connected to one end of the rotating shaft.

[0012] Optionally, the first locking component further includes a cylindrical block disposed on the other side of the first connecting seat, and the cylindrical block is fixedly connected to the other end of the rotating shaft.

[0013] Optionally, the first locking component further includes a first slide groove, which is formed on the outer wall of the other side of the cylindrical block. A slider is slidably connected inside the first slide groove. A first dovetail groove is formed on the outer wall of the other side of the L-shaped mounting plate. A first dovetail block is engaged with the inner wall of the first dovetail groove. The first dovetail block is fixedly connected to the slider by a vertical rod.

[0014] Optionally, the first locking assembly further includes a locking hook, which is rotatably connected to one side of the first connecting seat. A return spring is fixedly connected to the outside of the locking hook, and the other end of the return spring is fixedly connected to the first connecting seat via a crossbar.

[0015] Optionally, the second locking assembly includes a Z-shaped rod hinged to the top of the mounting base. One end of the Z-shaped rod is fixedly connected to a second inclined block. The outer wall of the vertical mounting plate is provided with a second inclined groove, which engages with the second inclined block. A plurality of pre-tension springs are installed on the inner side of the second inclined block, and the other end of each of the pre-tension springs is fixedly connected to an arc-shaped block.

[0016] Optionally, the second locking assembly further includes a second eccentric wheel hinged to the other end of the Z-shaped rod, and a second torsion spring is installed at the hinge point between the Z-shaped rod and the second eccentric wheel.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above solution, the fixing components adopt a combination design of claw-type clamping blocks and flexible iron sheets. At the same time, a third torsion spring is provided at the hinge between the claw-type clamping blocks, which can adjust the opening and closing range according to the cable diameter. The flexible iron sheet has good flexibility and can slide and tighten along the limiting sleeve. With the positioning design of multiple first inclined grooves, it can adapt to emergency cables of various diameters from thin to thick. The first buffer pad at the top of the inner side of the claw-type clamping block fits into the inclined surface structure, and the second buffer pad at the bottom has the same enclosing diameter as the first buffer pad. This increases the contact area with the cable and avoids excessive compression and damage to the cable insulation layer through the flexible material. It also avoids direct friction between the cable and the metal fixing parts, effectively protecting the cable insulation layer and reducing the risk of electrical accidents such as short circuits and leakage caused by insulation layer damage. At the same time, the inclined top of the claw-type clamping block, together with the pre-tightening force of the torsion spring, can effectively prevent the cable from loosening and sliding back when the tower crane vibrates.

[0019] The above solution employs a triple protection mechanism: locking with a first eccentric wheel, engaging with a locking hook, and limiting with a first dovetail block. Initial locking is achieved by the eccentric wheel pressing against the locking block. The locking hook engages with the first inclined groove of the flexible iron plate to prevent rebound. The first dovetail block engages with the first dovetail groove to fix the rotating shaft, preventing the eccentric wheel from rotating. This structurally prevents cable loosening and effectively prevents cables from detaching under tower crane vibration. It is compatible with various cables of different diameters, solving the problems of poor compatibility and insecure fixing in traditional fixing devices. Furthermore, during cable installation, only the first eccentric wheel needs to be rotated to lock the flexible iron plate and secure the cable. During disassembly, rotating the first eccentric wheel in the opposite direction causes the locking hook to rebound under the action of the return spring. After the flexible iron plate is removed, the claw-type clamp automatically opens, allowing for quick cable removal without the need for tools. This significantly shortens the time required for emergency circuit installation, maintenance, and cable replacement, meeting the rapid response needs in emergency scenarios.

[0020] In the above solution, the L-shaped mounting plate is directly fitted onto the railing, and the L-shaped mounting plate and the vertical mounting plate are quickly integrated by the limiting rod. Then, the second dovetail block is quickly connected to the second dovetail groove of the L-shaped mounting plate, and the overall structure is quickly installed. The Z-shaped rod, the second tilting block and the second eccentric wheel of the second locking component are used to quickly lock the three together. When disassembling, only the second eccentric wheel needs to be rotated in the opposite direction. Under the action of the second torsion spring, the Z-shaped rod is reset and the second tilting block is disengaged from the second tilting groove, so that the mounting base, the vertical mounting plate and the L-shaped mounting plate can be separated in sequence. No welding or complicated tools are required throughout the process, which greatly shortens the time for emergency circuit installation, inspection and cable replacement, and improves construction and maintenance efficiency. Attached Figure Description

[0021] Figure 1 A frontal 3D structural diagram of the fixing device for the electrical emergency circuit of a tower crane;

[0022] Figure 2 A three-dimensional structural diagram of the electrical emergency circuit fixing device for tower cranes from another perspective;

[0023] Figure 3 A three-dimensional structural diagram of the second dovetail block and the second dovetail groove;

[0024] Figure 4 A three-dimensional structural diagram of the fixing component and the first locking component;

[0025] Figure 5 A cross-sectional three-dimensional structural diagram of the fixing component and the first locking component;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the first locking component;

[0027] Figure 7A three-dimensional cross-sectional structural diagram of the second locking component;

[0028] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point A in the diagram.

[0029] Figure label:

[0030] 1. Tower crane railing; 2. L-shaped mounting plate; 3. Vertical mounting plate; 4. Limiting rod; 5. Mounting base; 6. Fixing assembly; 601. Claw-type clamping block; 602. First buffer pad; 603. Second buffer pad; 604. Flexible iron sheet; 605. First inclined groove; 606. Limiting sleeve; 7. First locking assembly; 701. First connecting seat; 702. Locking block; 703. Rotating shaft; 704. First eccentric wheel; 705. First torsion spring; 706. Protrusion; 707. Cylindrical block; 708. First slide groove; 709. First dovetail block; 710. First dovetail groove; 711. Locking hook; 712. Return spring; 8. Second locking assembly; 801. Z-shaped rod; 802. Second inclined block; 803. Second inclined groove; 804. Preload spring; 805. Second eccentric wheel; 806. Second torsion spring; 807. Arc block; 9. Second dovetail block; 10. Second dovetail groove. Detailed Implementation

[0031] To further illustrate the technical means and effects adopted by the present invention in order to achieve the intended purpose, the following detailed description is provided in conjunction with the accompanying drawings and preferred embodiments, based on the specific implementation methods, structures, features and effects of the present invention.

[0032] like Figures 1 to 8 As shown, an embodiment of the present invention provides a tower crane electrical emergency circuit fixing device, including a tower crane railing 1, an L-shaped mounting plate 2 on one side of the tower crane railing 1, a vertical mounting plate 3 on the other side of the tower crane railing 1, a plurality of limiting rods 4 at the bottom end of the tower crane railing 1, all of which are fixedly connected to the L-shaped mounting plate 2, and are arranged in a rectangular array on the L-shaped mounting plate 2 to limit the vertical mounting plate 3. The limiting rods 4 are engaged with the vertical mounting plate 3, and a plurality of second dovetail grooves 10 are provided through the bottom end of one side of the L-shaped mounting plate 2. The interior of the second dovetail groove 10 is fitted with second dovetail blocks 9. The other end of several second dovetail blocks 9 is fixedly connected to a mounting base 5. The bottom end of the vertical mounting plate 3 is in contact with the top end of the mounting base 5. Several fixing components 6 are provided on the other end of the L-shaped mounting plate 2. The fixing components 6 are used to fix the circuit cables. A first locking component 7 is provided on one side of several fixing components 6. The first locking component 7 is used to lock the fixing components 6. A second locking component 8 is provided on the upper end of the mounting base 5. The second locking component 8 is used to fix the L-shaped mounting plate 2 and the vertical mounting plate 3.

[0033] like Figures 2 to 5 As shown, the fixing component 6 includes several claw-type clamping blocks 601, which are disposed on the outer side of the L-shaped mounting plate 2. The claw-type clamping blocks 601 are hinged together. A first buffer pad 602 is adhered to the inner top of each claw-type clamping block 601. The first buffer pad 602 conforms to the inner wall of the inclined top of the claw-type clamping block 601 to prevent excessive compression of the cable. The inclined top of the claw-type clamping block 601 prevents the cable from retracting during clamping. A third torsion spring is provided at each hinge point between the claw-type clamping blocks 601 to increase the preload. The first and last claw-type clamping blocks 601 are not hinged, forming an opening between them for easy cable insertion. The inner bottom of the claw-type clamping blocks 601... Each end is bonded with a second buffer pad 603. The diameter of the enclosed opening of the second buffer pad 603 is the same as the top opening diameter of the first buffer pad 602, which increases the contact area and facilitates the wrapping of cables. The fixing component 6 also includes several limiting sleeves 606. The several limiting sleeves 606 are respectively fixedly connected to the outside of the claw-type clamping block 601. The inner side of the several limiting sleeves 606 is slidably connected to a flexible iron sheet 604. The flexible iron sheet 604 has good flexibility and is easy to tighten cables of different thicknesses. One end of the flexible iron sheet 604 is fixedly connected to the first limiting sleeve 606. The first limiting sleeve 606 is fixedly connected to the outer wall of the L-shaped mounting plate 2. The other end of the flexible iron sheet 604 is provided with several first inclined grooves 605.

[0034] like Figures 1 to 6As shown, the first locking assembly 7 also includes a first connecting seat 701, which is fixedly connected to the outer wall of the L-shaped mounting plate 2. A C-shaped groove is provided at the bottom of the inner part of the first connecting seat 701 to facilitate smooth rotation of the first eccentric wheel 704. A locking block 702 is fixedly connected to the center of one side of the first connecting seat 701. The first eccentric wheel 704 is provided on one side of the locking block 702. A rotating shaft 703 is fixedly connected to the inner wall of one side of the first eccentric wheel 704. Both ends of the rotating shaft 703 are rotatably connected to the inner wall of the first connecting seat 701. The first locking assembly 7 also includes a first torsion spring 705, which is sleeved on the middle of the rotating shaft 703. The first locking assembly 7 is located on the outside. When the first eccentric wheel 704 is locked, the first torsion spring 705 is compressed and stores energy. When the lock is engaged, the first torsion spring 705 releases energy and resets. A protrusion 706 is provided on one side of the first connecting seat 701, and the protrusion 706 is fixedly connected to one end of the rotating shaft 703. The first locking assembly 7 also includes a cylindrical block 707, which is located on the other side of the first connecting seat 701 and is fixedly connected to the other end of the rotating shaft 703. The first locking assembly 7 also includes a first sliding groove 708, which is formed on the outer wall of the other side of the cylindrical block 707. The interior of the first sliding groove 708 slides. A slider is connected to the first slide groove 708, which is a vertical groove. When the cylindrical block 707 drives the first dovetail block 709 to move towards the first dovetail groove 710, the connection structure between the slider and the first dovetail block 709 is stationary in a vertical state. At this time, the rotating first slide groove 708 slides relative to the slider. The other side of the L-shaped mounting plate 2 has a first dovetail groove 710 on its outer wall. The inner wall of the first dovetail groove 710 is engaged with the first dovetail block 709. The first dovetail block 709 is fixedly connected to the slider by a vertical rod. The engagement and fixation of the first dovetail block 709 and the first dovetail groove 710 facilitates the removal of the jammed state of the first eccentric wheel 704. The locking mechanism further improves the locking efficiency of the cable. The first locking component 7 also includes a locking hook 711, which is rotatably connected to one side of the first connecting seat 701. A return spring 712 is fixedly connected to the outside of the locking hook 711. The other end of the return spring 712 is fixedly connected to the first connecting seat 701 through a crossbar. When the protruding end of the protrusion 706 applies pressure to the locking hook 711, the hook of the locking hook 711 rotates counterclockwise with its hinge point as the center, which simultaneously drives the return spring 712 to stretch. When the protruding end of the protrusion 706 separates from the locking hook 711, the locking hook 711 resets under the action of the return spring 712.

[0035] like Figures 3 to 8As shown, the second locking assembly 8 includes a Z-shaped rod 801, which is hinged to the top of the mounting base 5. One end of the Z-shaped rod 801 is fixedly connected to a second inclined block 802. A second inclined groove 803 is provided on the outer wall of the vertical mounting plate 3. The second inclined groove 803 is engaged with the second inclined block 802. Several preload springs 804 are installed on the inner side of the second inclined block 802. The other end of each preload spring 804 is fixedly connected to an arc-shaped block 807. The head of the arc-shaped block 807 is spherical, which facilitates the rapid compression and advancement of the arc-shaped block 807 when the second inclined block 802 enters the second inclined groove 803. Inside the second inclined groove 803, the pre-tension spring 804 is provided with a miniature telescopic rod to limit the pre-tension spring 804 and prevent it from tilting. The second locking assembly 8 also includes a second eccentric wheel 805, which is hinged to the other end of the Z-shaped rod 801. A second torsion spring 806 is installed at the hinge between the Z-shaped rod 801 and the second eccentric wheel 805. When the second eccentric wheel 805 is locked, the second torsion spring 806 is compressed and stores energy. When the second eccentric wheel 805 is unlocked, the second torsion spring 806 releases energy and drives the second eccentric wheel 805 to reset.

[0036] The working principle of the technical solution provided by this invention is as follows:

[0037] During operation, the L-shaped mounting plate 2 is fitted onto the tower crane railing 1 at a certain position on the tower crane, so that the top horizontal surface of the L-shaped mounting plate 2 is in contact with the top surface of the tower crane railing 1. Then, the vertical mounting plate 3 is engaged and fixed with the limiting rod 4 on the L-shaped mounting plate 2, so that the vertical mounting plate 3 is in contact with the side of the tower crane railing 1. Next, the second dovetail block 9 on the side of the mounting base 5 is engaged and fixed with the second dovetail groove 10 at the bottom of the L-shaped mounting plate 2. Then, the handle of the second eccentric wheel 805 is rotated, which drives the second eccentric wheel 805 to rotate, so that the bottom locking point of the second eccentric wheel 805 rotates to the top of the mounting base 5 and abuts against the mounting base 5. At the same time, the rotating rod of the second eccentric wheel 805 causes the end of the Z-shaped rod 801 to tilt up, so that the other end of the Z-shaped rod 801 is centered on the hinge point of the Z-shaped rod 801. The rotation causes the second inclined block 802 to rotate downwards via the other end of the Z-shaped rod 801, thereby causing the second inclined block 802 to engage inside the second inclined groove 803. Simultaneously, the second inclined block 802 drives the pre-tension spring 804 and the arc-shaped block 807 into the inner side of the second inclined groove 803. When the arc-shaped block 807 enters the inner side of the second inclined groove 803, the inclined inner wall of the second inclined groove 803 contacts and presses against the arc-shaped block 807, causing the arc-shaped block 807 to press against the pre-tension spring 804, thus compressing the pre-tension spring 804 itself. This pre-tensions the connection between the second inclined groove 803 and the second inclined block 802 through the arc-shaped block 807 and the pre-tension spring 804, thereby locking the L-shaped mounting plate 2, the tower crane railing 1, and the vertical mounting plate 3.

[0038] Furthermore, after the initial installation is completed, the circuit cables requiring emergency fixation are inserted through the openings of several claw-type clamps 601 into the inner side of the opening and closing enclosure structure composed of several claw-type clamps 601. Then, the other end of the flexible iron sheet 604 is passed through the first limiting sleeve 606 and tightened, so that the opening and closing enclosure structure composed of several claw-type clamps 601 fixes the circuit cables. At this time, the first inclined groove 605 at a certain position on the other end of the flexible iron sheet 604 moves to the position of the hook of the locking hook 711. Then, the handle of the first eccentric wheel 704 is rotated, which drives the first eccentric wheel 704 to rotate, so that the locking point of the first eccentric wheel 704 rotates to the side of the locking block 702. At the same time, the locking point of the first eccentric wheel 704 abuts against the locking block 702 to lock it. Simultaneously, the eccentric wheel drives the rotating shaft 703 to rotate, which drives the protrusion 706 to rotate, which in turn drives the protrusion 706 to rotate. During rotation, the protruding end of 06 presses against the locking hook 711 and drives the locking hook 711 to rotate, thereby causing the inclined hook of the locking hook 711 to hook into the inner side of its corresponding first inclined groove 605, thus locking the flexible iron sheet 604 and locking the opening and closing enclosure structure composed of the claw-type clamping block 601. At the same time, when the first eccentric wheel 704 drives the rotating shaft 703 to rotate, the other end of the rotating shaft 703 drives the cylindrical block 707 to rotate horizontally in sync. As the cylindrical block 707 rotates, the first sliding groove 708 on the outer wall of the cylindrical block 707 generates a vertical thrust on the slider that is slidably connected inside. The slider transmits the vertical thrust to the first dovetail block 709 through the vertical rod, driving the first dovetail block 709 to move vertically towards the first dovetail groove 710, so that the first dovetail block 709 is accurately inserted into the inner side of the first dovetail groove 710. Then, it is installed in sequence according to the above method.

[0039] Furthermore, when it is necessary to replace the cable, the handle of the first eccentric wheel 704 is rotated in the reverse direction. The handle drives the first eccentric wheel 704 to rotate in the reverse direction, causing the locking point of the first eccentric wheel 704 to separate from the side of the locking block 702. The first eccentric wheel 704 drives the rotating shaft 703 to rotate in the reverse direction, and the rotating shaft 703 drives the protrusion 706 to rotate in the reverse direction, causing the protruding end of the protrusion 706 to separate from the locking hook 711. At the same time, the pressure applied by the protrusion 706 to the surface of the locking hook 711 disappears. At this time, the locking hook 711 is reset under the action of the return spring 712 and separates from the corresponding first inclined groove 605. Then, the other end of the flexible iron plate 604 is pulled out from the first limiting sleeve 606, thereby opening the opening and closing structure formed by the claw clamp 601, and then the electrical components are taken out for replacement.

[0040] At this point, when it is necessary to remove the device, the handle of the second eccentric wheel 805 is rotated in the reverse direction. The handle drives the second eccentric wheel 805 to rotate in the reverse direction, causing the locking point of the second eccentric wheel 805 to separate from the mounting base 5. At the same time, under the action of the second torsion spring 806, the hinge joint between the second eccentric wheel 805 and the other end of the Z-shaped rod 801 returns to its original state. Simultaneously, the end of the Z-shaped rod 801 is driven to press down, causing the other end of the Z-shaped rod 801 to tilt upwards. Through the other end of the Z-shaped rod 801, the second eccentric wheel 805 is driven to rotate in the opposite direction. The two tilting blocks 802 rotate upwards around the hinge of the Z-shaped rod 801, thereby separating the second tilting block 802 from the second tilting groove 803. At the same time, the pre-tension spring 804 returns to its original state. Then, the second dovetail block 9 is separated from the second dovetail groove 10, thereby separating the mounting base 5 from the L-shaped mounting plate 2. Then, the vertical mounting plate 3 of the L-shaped mounting plate 2 is separated from the limiting rod 4, thereby separating the vertical mounting plate 3, the tower crane railing 1, and the L-shaped mounting plate 2 respectively.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A tower crane electrical emergency circuit fixing device, characterized in that, The system includes a tower crane railing (1), an L-shaped mounting plate (2) on one side of the tower crane railing (1), a vertical mounting plate (3) on the other side of the tower crane railing (1), a number of limiting rods (4) at the bottom of the tower crane railing (1), the number of limiting rods (4) being fixedly connected to the L-shaped mounting plate (2), the number of limiting rods (4) being engaged with the vertical mounting plate (3), a number of second dovetail grooves (10) being opened through the bottom of one side of the L-shaped mounting plate (2), a number of second dovetail blocks (9) being engaged with the inside of the number of second dovetail grooves (10), and a mounting base (5) being fixedly connected to the other end of the number of second dovetail blocks (9). The other end of the L-shaped mounting plate (2) is provided with several fixing components (6), which are used to fix the circuit cables; Each of the fixing components (6) is provided with a first locking component (7) on one side, and the first locking component (7) is used to lock the fixing component (6); The upper end of the mounting base (5) is provided with a second locking component (8), which is used to fix the L-shaped mounting plate (2) and the vertical mounting plate (3); The fixing component (6) includes a plurality of claw-type clamping blocks (601), which are disposed on the outside of the L-shaped mounting plate (2). The plurality of claw-type clamping blocks (601) are hinged to each other. A first buffer pad (602) is glued to the top inner side of each of the plurality of claw-type clamping blocks (601), and a second buffer pad (603) is glued to the bottom inner side of each of the plurality of claw-type clamping blocks (601). The first locking component (7) further includes a first connecting seat (701), which is fixedly connected to the outer wall of the L-shaped mounting plate (2). A locking block (702) is fixedly connected to the center of one side of the first connecting seat (701). A first eccentric wheel (704) is provided on one side of the locking block (702). A rotating shaft (703) is fixedly connected to the inner wall of one side of the first eccentric wheel (704). The two ends of the rotating shaft (703) are respectively rotatably connected to the inner wall of the first connecting seat (701). The second locking assembly (8) includes a Z-shaped rod (801), which is hinged to the top of the mounting base (5). One end of the Z-shaped rod (801) is fixedly connected to a second inclined block (802). The outer wall of the vertical mounting plate (3) is provided with a second inclined groove (803), which is engaged with the second inclined block (802). Several pre-tension springs (804) are installed on the inner side of the second inclined block (802), and the other end of each of the several pre-tension springs (804) is fixedly connected to an arc-shaped block (807).

2. The tower crane electrical emergency circuit fixing device according to claim 1, characterized in that, The fixing component (6) also includes a plurality of limiting sleeves (606), which are respectively fixedly connected to the outside of the claw-type clamp (601). A flexible iron sheet (604) is slidably connected to the inside of the plurality of limiting sleeves (606). One end of the flexible iron sheet (604) is fixedly connected to the first limiting sleeve (606), and the first limiting sleeve (606) is fixedly connected to the outer wall of the L-shaped mounting plate (2). The other end of the flexible iron sheet (604) is provided with a plurality of first inclined grooves (605).

3. The tower crane electrical emergency circuit fixing device according to claim 2, characterized in that, The first locking component (7) also includes a first torsion spring (705), which is sleeved on the outside of the center of the rotating shaft (703). A protrusion (706) is provided on one side of the first connecting seat (701), and the protrusion (706) is fixedly connected to one end of the rotating shaft (703).

4. The tower crane electrical emergency circuit fixing device according to claim 3, characterized in that, The first locking component (7) also includes a cylindrical block (707), which is disposed on the other side of the first connecting seat (701) and is fixedly connected to the other end of the rotating shaft (703).

5. The tower crane electrical emergency circuit fixing device according to claim 4, characterized in that, The first locking component (7) also includes a first slide groove (708), which is opened on the outer wall of the other side of the cylindrical block (707). A slider is slidably connected inside the first slide groove (708). A first dovetail groove (710) is opened on the outer wall of the other side of the L-shaped mounting plate (2). A first dovetail block (709) is engaged with the inner wall of the first dovetail groove (710). The first dovetail block (709) is fixedly connected to the slider by a vertical rod.

6. The tower crane electrical emergency circuit fixing device according to claim 5, characterized in that, The first locking assembly (7) further includes a locking hook (711), which is rotatably connected to one side of the first connecting seat (701). A return spring (712) is fixedly connected to the outside of the locking hook (711), and the other end of the return spring (712) is fixedly connected to the first connecting seat (701) through a crossbar.

7. The tower crane electrical emergency circuit fixing device according to claim 6, characterized in that, The second locking assembly (8) also includes a second eccentric wheel (805), which is hinged to the other end of the Z-shaped rod (801), and a second torsion spring (806) is installed at the hinge point between the Z-shaped rod (801) and the second eccentric wheel (805).

Images