Adjustable telescopic tower crane anti-climb device

Abstract

The utility model relates to tower crane technical field and disclose a adjustable telescopic tower crane anti -climbing device, including tower crane body, the tower crane body is fixedly connected with the protection spare in, the protection spare inner wall is fixedly connected with second ladder stand, the protection spare is provided with second anti -climbing mechanism in, the protection spare bottom is provided with first anti -climbing mechanism, first anti -climbing mechanism includes first ladder stand. This adjustable telescopic tower crane anti -climbing device, can effectively prevent the behavior of the non -operation related personnel (such as the irrelevant masses, the minor, etc.) because of the curiosity exploration, the lucky evasion management etc. the psychological cause unauthorized climbing equipment or operation area, directly builds the personnel life safety defense line, avoids the possible fall, the knock, the electric shock etc. the safety risk in the climbing process, from the source eliminates the occurrence of safety accident tragedy, reduces the personnel casualties and the property loss because of the accident simultaneously, guarantees the safety steady of operation site and surrounding environment.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, specifically to an adjustable and telescopic anti-climbing device for tower cranes. Background Technology

[0002] Tower cranes, also known as tower hoists, originated in Western Europe. They are rotating cranes with a jib mounted on a tall tower. They offer a large working space and are mainly used for the vertical and horizontal transport of materials and the installation of building components in construction. They consist of three main parts: the metal structure, the working mechanism, and the electrical system. The metal structure includes the tower, jib, and base. The working mechanism comprises four parts: hoisting, luffing, slewing, and traveling. The electrical system includes motors, controllers, distribution cabinets, wiring, signaling, and lighting devices.

[0003] Currently, most tower cranes used in construction sites are not equipped with dedicated anti-climbing protection structures or have inadequate protective measures. This design shortcoming often leads to people (including some construction workers climbing illegally for convenience, and non-working personnel climbing without permission out of curiosity or a sense of luck) climbing tower cranes at will during construction. Due to the height of the tower crane, the lack of safety protection along the climbing path, and the susceptibility to wind and equipment swaying during the climbing process, it is very easy to cause safety accidents such as falls and collisions. This not only causes tragedies of personal injury and death, but also affects the construction progress, increases project operating costs, and brings adverse social impacts. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable and retractable anti-climbing device for tower cranes to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable and telescopic anti-climbing device for tower cranes, comprising a tower crane body, a protective component fixedly connected inside the tower crane body, a second ladder fixedly connected to the inner wall of the protective component, a second anti-climbing mechanism provided inside the protective component, and a first anti-climbing mechanism provided at the bottom of the protective component;

[0006] The first anti-climbing mechanism includes a first ladder, which is located at the bottom of the protective component. A support shaft is fixedly connected to the bottom of the first ladder, and a baffle is rotatably connected to the surface of the support shaft. A slot is provided on the left side of the baffle, and a cylinder is engaged in the slot. A positioning plate is fixedly connected to the surface of the cylinder.

[0007] Preferably, a support column is fixedly connected to the side of the positioning plate away from the cylinder, and a fixing plate is fixedly connected to the front side of the support column. The cylinder passes through the fixing plate, and the fixing plate is fixedly connected to the left side surface of the first ladder. By activating the cylinders on both sides, the cylinders on both sides are compressed and disengaged from the inside of the baffle, at which time the baffle hangs down.

[0008] Preferably, the first ladder is located at the bottom of the second ladder. The first and second ladders are made of low-alloy structural steel, which is lighter than ordinary carbon steel with the same strength, reducing the additional load on the tower crane body and not affecting the lifting performance of the tower crane.

[0009] Preferably, two cylinders are provided, symmetrically arranged on the front and rear sides of the baffle. The baffle opens and closes by rotating through a support shaft. If only a single cylinder drives the baffle, it is easy to cause uneven force on the baffle (unilateral load), resulting in problems such as jamming, tilting, or uneven rotation. The symmetrical arrangement of the two cylinders can generate synchronous and opposite balanced driving forces, ensuring that the baffle makes pure rotational movement along the support shaft without deviation or jamming. This ensures the baffle fits the ladder perfectly when locked (without gaps to prevent unauthorized personnel from climbing through gaps), and the baffle can quickly reset when unlocked.

[0010] Preferably, a sliding block is fixedly connected to the right side surface of the first ladder, and a first electric slide rail is slidably connected to the surface of the sliding block. The first electric slide rail is fixedly connected to the tower crane body. The cooperation between the sliding block and the slide rail forms a precise guiding mechanism, which restricts the first ladder to move only in the vertical direction, avoids left and right deviation and swaying during the lifting process, and ensures the alignment accuracy of the first ladder and the second ladder.

[0011] Preferably, the second anti-climbing mechanism includes a frame, which is fixedly connected to the protective component. A second electric slide rail is fixedly connected to both sides of the frame, and a support bar is slidably connected inside the second electric slide rail. The frame serves as the mounting base for the second anti-climbing mechanism and is fixed to the inner wall of the protective component to form an independent protective unit.

[0012] Compared with the prior art, this utility model provides an adjustable and telescopic anti-climbing device for tower cranes, which has the following beneficial effects:

[0013] 1. This adjustable and retractable anti-climbing device for tower cranes can effectively prevent unauthorized personnel (such as unrelated members of the public, minors, etc.) from climbing equipment or work areas due to curiosity, exploration, or a desire to evade management. It directly strengthens the safety of personnel, avoids safety risks such as falls, collisions, and electric shocks that may occur during climbing, eliminates the occurrence of safety accidents from the source, reduces personal injury and property damage caused by accidents, and ensures the safety and stability of the work site and surrounding environment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the first anti-climbing mechanism of this utility model;

[0018] Figure 4 This is a slanted view of the first anti-climbing mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the second anti-climbing mechanism of this utility model.

[0020] In the diagram: 1. Tower crane body; 2. First anti-climbing mechanism; 21. Positioning plate; 22. Baffle; 23. Cylinder; 24. Fixing plate; 25. Support column; 26. Support shaft; 27. First electric slide rail; 28. First ladder; 29. ​​Sliding block; 3. Second anti-climbing mechanism; 31. Support bar; 32. Frame; 33. Second electric slide rail; 4. Protective component; 5. Second ladder. Detailed Implementation

[0021] 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.

[0022] This utility model provides a technical solution:

[0023] Example 1:

[0024] Combination Figures 1-4 An adjustable and retractable anti-climbing device for tower cranes includes a tower crane body 1, a protective component 4 fixedly connected inside the tower crane body 1, a second ladder 5 fixedly connected to the inner wall of the protective component 4, a second anti-climbing mechanism 3 provided inside the protective component 4, and a first anti-climbing mechanism 2 provided at the bottom of the protective component 4.

[0025] The first anti-climbing mechanism 2 includes a first climbing ladder 28, which is located at the bottom of the protective component 4. A support shaft 26 is fixedly connected to the bottom of the first climbing ladder 28. A baffle 22 is rotatably connected to the surface of the support shaft 26. A slot is opened on the left side of the baffle 22, and a cylinder 23 is engaged in the slot. A positioning plate 21 is fixedly connected to the surface of the cylinder 23.

[0026] Furthermore, a support column 25 is fixedly connected to the side of the positioning plate 21 away from the cylinder 23, and a fixing plate 24 is fixedly connected to the front side of the support column 25. The cylinder 23 passes through the fixing plate 24, and the fixing plate 24 is fixedly connected to the left side surface of the first ladder 28. By activating the cylinders 23 on both sides, the cylinders 23 on both sides are compressed and disengaged from the interior of the baffle 22. At this time, the baffle 22 hangs down.

[0027] Furthermore, the first ladder 28 is located at the bottom of the second ladder 5. The first ladder 28 and the second ladder 5 are made of low alloy structural steel, which is lighter than ordinary carbon steel with the same strength, reducing the additional load on the tower crane body 1 and not affecting the lifting performance of the tower crane.

[0028] Furthermore, two cylinders 23 are provided, symmetrically arranged on the front and rear sides of the baffle 22. The baffle 22 opens and closes by rotating via the support shaft 26. If only a single cylinder 23 drives the baffle 22, it is easy to cause uneven force on the baffle 22 (unilateral load), resulting in problems such as jamming, tilting, or uneven rotation. The symmetrical arrangement of the two cylinders 23 can generate synchronous and opposite balanced driving forces, ensuring that the baffle 22 makes pure rotational movement along the support shaft 26 without deviation or jamming. This ensures the fit between the baffle 22 and the ladder when locked (no gaps, preventing unauthorized personnel from climbing through gaps), and the baffle 22 can quickly return to its original position when unlocked.

[0029] Furthermore, a sliding block 29 is fixedly connected to the right side surface of the first ladder 28, and a first electric slide rail 27 is slidably connected to the surface of the sliding block 29. The first electric slide rail 27 is fixedly connected inside the tower crane body 1. The cooperation between the sliding block 29 and the slide rail forms a precise guiding mechanism, which restricts the first ladder 28 to move only in the vertical direction, avoids left and right deviation and swaying during the lifting process, and ensures the alignment accuracy of the first ladder 28 and the second ladder 5.

[0030] Example 2:

[0031] See Figure 5 Furthermore, based on Embodiment 1, the second anti-climbing mechanism 3 includes a frame 32, which is fixedly connected to the protective component 4. Both sides of the frame 32 are fixedly connected to a second electric slide rail 33, and a support bar 31 is slidably connected inside the second electric slide rail 33. The frame 32 serves as the mounting base of the second anti-climbing mechanism 3 and is fixed to the inner wall of the protective component 4 to form an independent protective unit.

[0032] In actual operation, when workers need to climb the tower crane body 1, they can activate the first electric slide rail 27. At this time, the first electric slide rail drives the sliding block 29 to move downward, thereby achieving the purpose of moving the first ladder 28 downward. Then, by activating the cylinders 23 on both sides, the cylinders 23 on both sides are compressed and disengaged from the inside of the baffle 22. At this time, the baffle 22 hangs down and lies flat on the surface of the first ladder 28. When the workers are halfway up the tower crane, they can lift the baffle 22 to make it perpendicular to the first ladder 28. By controlling the cylinders 23, the baffle 22 can be restricted again, which can prevent people from climbing the tower crane at will.

[0033] When workers climb to the bottom of frame 32, they can activate the second electric slide rail 33. At this time, the support bars 31 on both sides move in opposite directions, allowing workers to freely enter and exit the interior of frame 32. The interior space of frame 32 can also be enclosed, further preventing unauthorized personnel from entering the tower crane.

[0034] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An adjustable telescopic anti-climbing device for tower cranes, comprising a tower crane body (1), characterized in that: The tower crane body (1) is fixedly connected to a protective component (4), the inner wall of the protective component (4) is fixedly connected to a second ladder (5), the protective component (4) is provided with a second anti-climbing mechanism (3), and the bottom of the protective component (4) is provided with a first anti-climbing mechanism (2). The first anti-climbing mechanism (2) includes a first ladder (28), which is located at the bottom of the protective component (4). A support shaft (26) is fixedly connected to the bottom of the first ladder (28). A baffle (22) is rotatably connected to the surface of the support shaft (26). A slot is provided on the left side of the baffle (22). A cylinder (23) is engaged in the slot. A positioning plate (21) is fixedly connected to the surface of the cylinder (23).

2. The adjustable telescopic anti-climbing device for tower cranes according to claim 1, characterized in that: The positioning plate (21) is fixedly connected to a support column (25) on the side away from the cylinder (23). A fixing plate (24) is fixedly connected to the front side of the support column (25). The cylinder (23) passes through the fixing plate (24). The fixing plate (24) is fixedly connected to the left side surface of the first ladder (28).

3. The adjustable telescopic anti-climbing device for tower cranes according to claim 1, characterized in that: The first ladder (28) is located at the bottom of the second ladder (5), and the first ladder (28) and the second ladder (5) are made of low alloy structural steel.

4. The adjustable telescopic anti-climbing device for tower cranes according to claim 1, characterized in that: The number of cylinders (23) is two, and the two cylinders (23) are symmetrically arranged on the front and rear sides of the baffle (22).

5. The adjustable telescopic anti-climbing device for tower cranes according to claim 1, characterized in that: A sliding block (29) is fixedly connected to the right side surface of the first ladder (28), and a first electric slide rail (27) is slidably connected to the surface of the sliding block (29). The first electric slide rail (27) is fixedly connected inside the tower crane body (1).

6. The adjustable telescopic anti-climbing device for tower cranes according to claim 1, characterized in that: The second anti-climbing mechanism (3) includes a frame (32), which is fixedly connected to the protective component (4). A second electric slide rail (33) is fixedly connected to both sides of the frame (32), and a support bar (31) is slidably connected inside the second electric slide rail (33).

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