Safe anti-falling device for tower crane

Abstract

The utility model discloses a safety anti-falling device for a tower crane, which comprises an anti-falling device connecting main bottom plate, a connecting lantern ring is arranged on the surface of the side edge of the anti-falling device connecting main bottom plate, a clamping inserting rod is inserted into the surface of the inner ring of the connecting lantern ring in a limiting manner, and a supporting plate is arranged on the upper surface of the clamping inserting rod. An anti-falling protection plate is fixedly connected to the upper surface of the supporting plate, a connecting plate is installed on the surface of the side edge, connected with the main bottom plate, of the anti-falling device, a splicing opening is formed in the surface of the side edge of the connecting plate, and an inserting plate is fixedly connected to the surface of the side edge, connected with the main bottom plate, of the anti-falling device. Therefore, a mounting plate and an anti-falling device connecting main bottom plate can be used and mounted, after a user screws a threaded rod, vertical height adjustment can be carried out on a clamping insertion rod on a connecting lantern ring, and after the user adjusts a proper position, efficient use adjustment can be carried out on the anti-falling device.

Description

Technical Field

[0001] This utility model belongs to the field of tower crane protection technology, specifically relating to a safety anti-fall device for tower cranes. Background Technology

[0002] Tower cranes, also known as tower hoists, originated in Western Europe. They are rotating cranes with their booms mounted on the upper part of a tall tower. They have a large working space and are mainly used for the vertical and horizontal transport of materials and the installation of building components in building construction. They consist of three parts: a metal structure, a working mechanism, and an electrical system. The metal structure includes the tower body, boom, and base. The working mechanism has four parts: hoisting, luffing, slewing, and traveling. The electrical system includes motors, controllers, distribution cabinets, connecting lines, signal and lighting devices, etc.

[0003] The existing technology has the following problems: it cannot adjust the height of the locking rod on the connecting collar, which makes it impossible for users to adjust it to a suitable position, and it cannot efficiently adjust the fall protection device, thus failing to meet the market's demand for efficient adjustment. Utility Model Content

[0004] The purpose of this invention is to provide a safety anti-fall device for tower cranes, in order to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a safety anti-fall device for tower cranes, including a main base plate for connecting the anti-fall device, a connecting collar is installed on the side surface of the main base plate for connecting the anti-fall device, and a snap-fit ​​rod is inserted into the inner ring surface of the connecting collar for limiting.

[0006] A support plate is installed on the upper surface of the snap-fit ​​rod, and a fall-proof protective plate is fixedly connected to the upper surface of the support plate. A connecting plate is installed on the side surface of the fall-proof device connected to the base plate.

[0007] The side surface of the connecting plate has a splicing opening. The side surface of the fall arrestor connecting to the base plate is fixedly connected to a plug plate. The front surface of the connecting collar is fixedly connected to a fixing limit block. The side surface of the fixing limit block is equipped with a nut. The inner ring surface of the nut is limited by a threaded rod. The bottom surface of the fall arrestor connecting to the base plate is fixedly connected to an mounting plate. The inner ring surface of the connecting plate is limited by a limit rod.

[0008] This utility model further explains that the inner ring surface of the connecting collar is provided with an insertion opening, and the size of the insertion opening and the snap-fit ​​rod are matched with each other. Through precise size matching, the snap-fit ​​rod and the connecting collar are quickly and accurately inserted, eliminating assembly gaps, thereby improving installation efficiency, enhancing the structure's resistance to shear force, avoiding accidental dislocation caused by vibration, and directly improving the core stability of the fall arrestor.

[0009] This utility model further illustrates that the upper surface of the mounting plate is provided with a through-hole, and there are multiple mounting holes. The densely distributed mounting holes provide multi-dimensional fixing options and are suitable for different tower crane structures.

[0010] This utility model further illustrates that a handle is fixedly connected to the side surface of the limiting rod, and the handle is connected to the connecting plate through the limiting rod. The ergonomic design of the handle enables one-handed operation of the limiting rod for insertion and removal, simplifying the high-altitude disassembly and assembly process and reducing operational risks.

[0011] The present invention further explains that a limiting opening is provided on the side surface of the plug plate, and the limiting opening and the limiting plug are matched in size to form a geometric self-locking mechanism.

[0012] This utility model further explains that the nut is connected by a fixed limiting block and a connecting collar, and the fixed limiting block is symmetrically arranged with the vertical center line of the nut as the axis of symmetry. The symmetrical distribution of the two fixed limiting blocks forms a force couple balance system, which is adapted to the vibration environment of frequent start-stop of tower cranes.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] This utility model provides a safety fall arrest device for tower cranes. The device connects to a base plate, connecting collar, snap-fit ​​rod, connecting plate, plug-in opening, splicing opening, plug-in plate, support plate, fall arrest protective plate, limit rod, handle, mounting plate, mounting opening, limit opening, fixed limit block, nut, and threaded rod. This allows for efficient use and adjustment of the fall arrest device. To use the device, the user inserts bolts into the mounting plate, thus installing the mounting plate and the base plate. Tightening the threaded rod adjusts the height of the snap-fit ​​rod on the connecting collar. After adjusting to the appropriate position, the user can efficiently adjust the fall arrest device, meeting their needs for efficient use and adjustment.

[0015] This utility model provides a safety anti-fall device for tower cranes. It features a plug-in plate, and after the user snaps the plug-in plate into the connecting plate, the user can use a pull handle to insert a limiting rod into the limiting opening on the plug-in plate. This allows the user to efficiently assemble and use the anti-fall device, meeting the user's needs for efficient assembly and use. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a bottom view of the structure of this utility model;

[0020] Figure 4 This is the utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 5 This is a structural rear view of the present invention.

[0022] In the diagram: 1. Fall arrestor connecting base plate; 2. Connecting collar; 3. Snap-fit ​​rod; 4. Connecting plate; 5. Plug-in opening; 6. Splicing opening; 7. Plug-in plate; 8. Support plate; 9. Fall arrestor protective plate; 10. Limiting rod; 11. Pull handle; 12. Mounting plate; 13. Mounting opening; 14. Limiting opening; 15. Fixed limiting block; 16. Nut; 17. Threaded rod. Detailed Implementation

[0023] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-5 The present invention provides a technical solution: a safety anti-fall device for tower cranes, including an anti-fall device connecting base plate 1, a connecting collar 2 installed on the side surface of the anti-fall device connecting base plate 1, a locking rod 3 inserted into the inner ring surface of the connecting collar 2, and a support plate 8 installed on the upper surface of the locking rod 3.

[0025] In this embodiment, the inner ring surface of the connecting collar 2 is provided with an insertion opening 5, and the size of the insertion opening 5 and the snap-fit ​​rod 3 are matched. The upper surface of the mounting plate 12 is provided with a through mounting opening 13, and there are multiple mounting openings 13.

[0026] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: preferably, a fall-proof protective plate 9 is fixedly connected to the upper surface of the support plate 8, and a connecting plate 4 is installed on the side surface of the fall-proof device connecting the base plate 1, and a splicing opening 6 is opened on the side surface of the connecting plate 4.

[0027] In this embodiment, a handle 11 is fixedly connected to the side surface of the limiting rod 10, and the handle 11 is connected to the connecting plate 4 through the limiting rod 10. A limiting opening 14 is opened on the side surface of the plug plate 7, and the size of the limiting opening 14 and the limiting rod 10 are matched.

[0028] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a plug plate 7 is fixedly connected to the side surface of the main base plate 1 of the fall arrestor connection, a fixed limiting block 15 is fixedly connected to the front surface of the connecting collar 2, a nut 16 is installed on the side surface of the fixed limiting block 15, a threaded rod 17 is inserted into the inner ring surface of the nut 16 for limiting, an installation plate 12 is fixedly connected to the bottom surface of the main base plate 1 of the fall arrestor connection, and a limiting plug rod 10 is inserted into the inner ring surface of the connecting plate 4 for limiting.

[0029] In this embodiment, the nut 16 is connected to the connecting collar 2 via the fixing limit block 15, and the fixing limit block 15 is symmetrically arranged with the vertical center line of the nut 16 as the axis of symmetry.

[0030] like Figure 1-5 As shown, when the user needs to use it, the user needs to insert the bolts into the mounting plate 12, so that the mounting plate 12 and the main base plate 1 of the fall arrestor can be used and installed. After the user turns the threaded rod 17, the user can adjust the height of the snap-fit ​​rod 3 on the connecting collar 2. After the user adjusts the position appropriately, the fall arrestor can be used and adjusted efficiently. Through the set snap-fit ​​plate 7, after the user snaps the snap-fit ​​plate 7 into the connecting plate 4, the user can use the pull handle 11 to insert the limiting rod 10 into the limiting opening 14 opened on the snap-fit ​​plate 7, so that the user can use and assemble the fall arrestor efficiently.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not 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.

[0032] 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 this 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A safety fall arrest device for tower cranes, comprising a main base plate (1) for connecting the fall arrest device, characterized in that: A connecting collar (2) is installed on the side surface of the base plate (1) of the fall arrestor. A snap-fit ​​rod (3) is inserted into the inner ring surface of the connecting collar (2). A support plate (8) is installed on the upper surface of the snap-fit ​​rod (3). The upper surface of the support plate (8) is fixedly connected to a fall-proof protective plate (9), and a connecting plate (4) is installed on the side surface of the fall-proof device connecting the main base plate (1). The side surface of the connecting plate (4) is provided with a splicing opening (6), the side surface of the anti-fall device connecting base plate (1) is fixedly connected with a plug plate (7), the front surface of the connecting collar (2) is fixedly connected with a fixing limit block (15), the side surface of the fixing limit block (15) is provided with a nut (16), the inner ring surface of the nut (16) is limited by a threaded rod (17), the bottom surface of the anti-fall device connecting base plate (1) is fixedly connected with an installation plate (12), and the inner ring surface of the connecting plate (4) is limited by a limit plug rod (10).

2. A safety anti-fall device for tower cranes according to claim 1, characterized in that: An insertion opening (5) is provided on the inner surface of the connecting collar (2), and the size of the insertion opening (5) and the snap-fit ​​rod (3) are matched.

3. A safety anti-fall device for tower cranes according to claim 1, characterized in that: A mounting opening (13) is provided through the upper surface of the mounting plate (12), and there are multiple mounting openings (13).

4. A safety anti-fall device for tower cranes according to claim 1, characterized in that: A handle (11) is fixedly connected to the side surface of the limiting rod (10), and the handle (11) is connected to the connecting plate (4) through the limiting rod (10).

5. A safety anti-fall device for tower cranes according to claim 1, characterized in that: A limiting opening (14) is provided on the side surface of the plug plate (7), and the limiting opening (14) and the limiting plug (10) are matched in size.

6. A safety anti-fall device for tower cranes according to claim 1, characterized in that: The nut (16) is connected to the fixed limiting block (15) and the connecting collar (2), and the fixed limiting block (15) is symmetrically arranged with the vertical center line of the nut (16) as the axis of symmetry.

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