Safety protection device for building tower crane

Abstract

The utility model relates to building tower crane technical field solves the technical problem that the deformation is easy to be affected by transverse shearing force to occur in the stress process, and the horizontal contact surface between tower crane and attached wall rod is easy to accumulate rainwater, causes the rust of junction, influences the service life of tower crane and attached wall rod, especially relates to a kind of safety protection device for building tower crane, including tower crane main body, multiple connecting branch and attached wall rod, connecting branch and attached wall rod between be provided with the inside connecting mechanism for firm connection, attached wall rod outside section is provided with the outside connecting mechanism same with inside connecting mechanism, the utility model is due to the setting of first corrugated contact surface and second corrugated contact surface, can reduce the influence of shearing force by the corrugated contact surface of curved surface, can all promote the friction of contact surface inclination direction, reduce the risk that attached wall rod connecting position is corroded by rainwater, improve the service life of connecting piece.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, and in particular to a safety protection device for tower cranes. Background Technology

[0002] Tower cranes generally refer to tower cranes, which 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 transportation 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, while the working mechanism has four parts: hoisting, luffing, slewing, and traveling. In high-rise buildings, the main body of the tower crane is usually connected to the building wall through wall-mounted rods to improve the stability and safety of the tower crane and prevent deformation and tilting due to excessive height. However, existing tower cranes and wall-mounted rods are generally directly connected and fixed with coarse screws. These screws are easily deformed by lateral shear forces during the stress process, and rainwater easily accumulates on the horizontal contact surface between the tower crane and the wall-mounted rod, causing corrosion at the connection and affecting the service life of the tower crane and the wall-mounted rod. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a safety protection device for construction tower cranes. It solves the technical problems of deformation due to lateral shear forces during operation, and the accumulation of rainwater on the horizontal contact surface between the tower crane and the wall-mounted rod, leading to corrosion at the connection and affecting the service life of both. The device achieves this by using a curved and inclined corrugated contact surface to reduce the impact of shear forces, increase the inclined friction of the contact surface, reduce raindrop adhesion and accelerate raindrop aggregation through the corrugated convex arc surface, and allow raindrops to drain quickly through inclined grooves, thereby reducing the probability of corrosion and extending the service life.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a safety protection device for building tower cranes, including a tower crane body, multiple connecting arms and wall-mounted rods, wherein an inner connecting mechanism for stable connection is provided between the connecting arms and the wall-mounted rods, and an outer connecting mechanism with the same structure as the inner connecting mechanism is provided on the outer section of the wall-mounted rods.

[0005] Furthermore, the inner connecting mechanism includes a replacement base, the inner side of which is provided with a sliding groove for sliding connection, a replacement plate is slidably connected inside the sliding groove, and a first corrugated contact surface is fixedly connected to the outer end of the replacement plate to improve friction, reduce shear force, and reduce rainwater adhesion. A second corrugated contact surface is snapped onto the outer side of the first corrugated contact surface through a corrugated outer surface, and a support arm connecting plate is fixedly connected to the outer side of the second corrugated contact surface.

[0006] Furthermore, the replacement plate is provided with first bolt ears on both sides for increasing the positive pressure between the first corrugated contact surface and the second corrugated contact surface, and the support arm connecting plate is provided with second bolt ears on both sides corresponding to the positions of the first bolt ears. The first bolt ears and the second bolt ears are internally threaded with fixing screws and nuts.

[0007] Furthermore, the outer wall of the replacement base is provided with a rotating lug to facilitate adjustment of the connection angle.

[0008] Furthermore, the connecting arm is fixedly connected to the outer wall of the tower crane body.

[0009] Furthermore, the wall-mounted rod includes a telescopic hydraulic rod for extension and retraction.

[0010] Furthermore, the telescopic hydraulic rod is provided with rod-side lugs at both ends for threaded connection with the rotating lugs, and connecting screws and fixing nuts are threadedly connected to the rod-side lugs and the rotating lugs.

[0011] By employing the above technical solution, this utility model provides a safety protection device for construction tower cranes, which has at least the following beneficial effects: 1. Due to the design of the first and second corrugated contact surfaces, this utility model, through the auxiliary squeezing action of the fixing screws and nuts, can reduce the influence of shear force through the curved corrugated contact surfaces. Furthermore, the corrugated contact surfaces are designed as inclined waves or continuous convex surfaces, which can improve the friction in the inclined direction of the contact surfaces. At the same time, taking advantage of the characteristic that the adhesion of the raindrop spherical structure to the convex arc surface is small, after rainy weather, the arc surface design allows rainwater to flow away and be discharged more quickly along the inclined wave surface, and the remaining rainwater can also be dried quickly by the wind, reducing the risk of the wall-mounted rod connection position being corroded by rainwater and improving the service life of the connector.

[0012] 2. This utility model replaces the base and the plate by using a sliding groove on the inner side of the base for the plate to be replaced. Since the first and second corrugated contact surfaces are prone to friction damage during use, the sliding groove and the plate work together to quickly replace the first and second corrugated contact surfaces, making the inner connection mechanism more convenient to use and improving its service life and convenience. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural diagram of a safety protection device for a construction tower crane according to the present invention; Figure 2This is a three-dimensional structural diagram of the wall-mounted rod of this utility model; Figure 3 This is a side perspective view of the outer connecting mechanism of this utility model; Figure 4 This is an exploded view of the inner connecting mechanism of this utility model; Figure 5 This is a side perspective view of the inner connecting mechanism of this utility model; Figure 6 This utility model Figure 5 A magnified view of a portion of point A in the middle.

[0014] In the diagram: 1. Tower crane body; 2. Connecting boom; 3. Wall anchor; 31. Connecting screw; 32. Fixing nut; 33. Telescopic hydraulic rod; 4. Inner connecting mechanism; 41. Replacement base; 42. Replacement plate; 43. Fixing screw; 44. Nut; 45. First corrugated contact surface; 46. Second corrugated contact surface; 47. Boom connecting plate; 5. Outer connecting mechanism. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Due to the susceptibility to deformation caused by lateral shear forces during stress application, and the tendency for rainwater to accumulate on the horizontal contact surface between the tower crane and the wall-mounted mast, leading to corrosion at the connection and affecting the service life of both the tower crane and the wall-mounted mast, please refer to [the relevant documentation / reference needed]. Figure 1 - Figure 6This embodiment proposes a safety protection device for building tower cranes. It reduces the impact of shear force through a curved and inclined corrugated contact surface, increases the inclined friction of the contact surface, and reduces raindrop adhesion and accelerates raindrop aggregation through the corrugated convex arc surface. The inclined grooves allow raindrops to drain quickly, reducing the probability of corrosion and extending service life. The device includes a tower crane body 1, multiple connecting arms 2, and wall-mounted rods 3. An inner connecting mechanism 4 for stable connection is provided between the connecting arms 2 and the wall-mounted rods 3. An outer connecting mechanism 5 with the same structure as the inner connecting mechanism 4 is provided on the outer section of the wall-mounted rods 3. The inner connecting mechanism 4 includes a replacement base 41, with a sliding groove on the inner side of the replacement base 41 for sliding connection. The moving connection includes a replacement plate 42. The outer end of the replacement plate 42 is fixedly connected to a first corrugated contact surface 45, which is used to increase friction, reduce shear force, and reduce rainwater adhesion. A second corrugated contact surface 46 is snapped onto the outer side of the first corrugated contact surface 45 through the corrugated outer surface. A support arm connecting plate 47 is fixedly connected to the outer side of the second corrugated contact surface 46. The replacement plate 42 has first bolt ears on both sides to increase the positive pressure between the first corrugated contact surface 45 and the second corrugated contact surface 46. The support arm connecting plate 47 has second bolt ears on both sides corresponding to the positions of the first bolt ears. The first bolt ears and the second bolt ears are internally threaded with fixing screws 43 and nuts 44. The outer wall of the replacement base 41 is provided with rotating ears to facilitate adjustment of the connection angle.

[0017] In use, this invention connects the tower crane body 1 and the exterior wall of the building under construction via the inner connecting mechanism 4 and the outer connecting mechanism 5, using the wall-mounted rods 3. During use, the first corrugated contact surface 45 and the second corrugated contact surface 46 are clamped together and secured by the corrugated clamps using the replacement plate 42 and the support arm connecting plate 47. The corrugations are designed as inclined waves or continuously raised convex arc surfaces. This design allows for frictional force through compression, transforming the original planar contact into an interlaced inclined arc surface contact. The arc surfaces disperse shear force, improving the stability and safety of the inner connecting mechanism 4 and preventing the screws from being subjected to shear force. To mitigate the impact of bending deformation, the fixing screws 43 and nut 44, connected by the internal threads of the first and second bolt ears, increase the positive pressure between the first corrugated contact surface 45 and the second corrugated contact surface 46, making the connection more stable. The rotating lug of the replacement base 41 can adjust the angle of the replacement base 41, so that the inner connecting mechanism 4 is in a more suitable position. The structure of the support arm connecting plate 47 connected to the wall can also be set to the same structure as the connection between the replacement base 41 and the replacement plate 42, so that both sides can be replaced. The inner connecting mechanism 4 and the outer connecting mechanism 5 have the same structure, which will not be described in detail here. Due to the design of the first and second corrugated contact surfaces, this invention, aided by the compression of the fixing screws and nuts, reduces the impact of shear force through the curved corrugated contact surfaces. Furthermore, the corrugated contact surfaces are designed as inclined waves or continuous convex surfaces, both of which enhance friction in the inclined direction. Simultaneously, utilizing the characteristic that raindrop-shaped structures have low adhesion to convex arc surfaces, the arc surface design allows rainwater to flow away more quickly along the inclined wave surface after rain, and any remaining rainwater can be quickly dried, reducing the risk of corrosion at the wall-mounted rod connection point and extending the service life of the connector. The invention also features a replaceable base and a replaceable plate. The replaceable base has a sliding groove on its inner side for easy replacement of the plate. Since the first and second corrugated contact surfaces are prone to friction damage during use, the groove and replaceable plate work together to quickly replace them, making the inner connection mechanism more convenient to use and improving its service life and ease of use.

[0018] The connecting boom 2 is fixedly connected to the outer wall of the tower crane body 1. The wall-mounted rod 3 includes a telescopic hydraulic rod 33 for telescopic movement. Both ends of the telescopic hydraulic rod 33 are provided with rod side ears for threaded connection with the rotating lugs. The rod side ears and the rotating lugs are threadedly connected with connecting screws 31 and fixing nuts 32.

[0019] The present invention connects to the wall-mounted rod 3 via multiple connecting arms 2. The wall-mounted rod 3 is designed and allocated according to the actual situation. The telescopic hydraulic rod 33 can extend and retract to adjust its length. The connecting screw 31 and the fixing nut 32 can connect the inner connecting mechanism 4 and the outer connecting mechanism 5 to the wall-mounted rod 3. The rod side lug, rotating lug, first bolt lug and second bolt lug are all structures with threaded holes in the middle to facilitate threaded connection.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety protection device for a construction tower crane, comprising a tower crane body (1), multiple connecting booms (2), and wall-mounted rods (3), characterized in that, An inner connecting mechanism (4) for a stable connection is provided between the connecting arm (2) and the wall-mounted rod (3), and an outer connecting mechanism (5) with the same structure as the inner connecting mechanism (4) is provided on the outer section of the wall-mounted rod (3). The inner connecting mechanism (4) includes a replacement base (41). The inner side of the replacement base (41) is provided with a sliding groove for sliding connection. A replacement plate (42) is slidably connected inside the sliding groove. The outer end of the replacement plate (42) is fixedly connected to a first corrugated contact surface (45) for increasing friction, reducing shear force, and reducing rainwater adhesion. A second corrugated contact surface (46) is snapped onto the outer side of the first corrugated contact surface (45) through the corrugated outer surface. A support arm connecting plate (47) is fixedly connected to the outer side of the second corrugated contact surface (46).

2. The safety protection device for a construction tower crane according to claim 1, characterized in that, The replacement plate (42) is provided with first bolt ears on both sides for increasing the positive pressure between the first corrugated contact surface (45) and the second corrugated contact surface (46). The support arm connecting plate (47) is provided with second bolt ears on both sides corresponding to the positions of the first bolt ears. The first bolt ears and the second bolt ears are internally threaded with fixing screws (43) and nuts (44).

3. The safety protection device for a construction tower crane according to claim 1, characterized in that, The outer wall of the replacement base (41) is provided with a rotating lug for easy adjustment of the connection angle.

4. A safety protection device for a construction tower crane according to claim 1, characterized in that, The connecting arm (2) is fixedly connected to the outer wall of the tower crane body (1).

5. A safety protection device for a construction tower crane according to claim 1, characterized in that, The wall-mounted rod (3) includes a telescopic hydraulic rod (33) for telescopic extension and retraction.

6. A safety protection device for a construction tower crane according to claim 5, characterized in that, The telescopic hydraulic rod (33) has rod-side lugs at both ends for threaded connection with the rotating lugs. The rod-side lugs and the rotating lugs are threaded with connecting screws (31) and fixing nuts (32).

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