Mounting structure of tower crane boom guardrail

Abstract

The utility model relates to the field of tower crane boom safety protection structures, in particular to a tower crane boom guardrail installation structure which can achieve forward sliding of a safety belt hook along a guardrail without taking down the safety belt hook, and comprises the guardrail and a boom inclined rod of a boom, the guardrail is arranged in the extending direction of the boom, and the guardrail inclined rod comprises a connecting clamping ring. The connecting clamping ring comprises an inclined rod clamping ring, a connecting plate and a guardrail clamping ring which are fixedly connected in sequence, the inclined rod clamping ring is arranged on the cargo boom inclined rod in a clamping mode, and the guardrail clamping ring is arranged on the guardrail in a clamping mode. The device is particularly suitable for the installation of the tower crane boom guardrail.

Description

TECHNICAL FIELD

[0001] The utility model relates to tower crane jib safety protection structure field especially a tower crane jib supporting frame mounting structure. BACKGROUND

[0002] Tower crane is widely used in the field of construction, and when repairing the tower crane trolley, installing and dismounting the jib, the workers need to walk along the jib to the end of the jib to work, and in this process, the workers have the risk of falling from the sky. Therefore, in order to ensure the safety of the workers, the existing tower crane jib will be provided with a supporting frame along the extension direction of the jib for the workers to hang the safety belt hook or hold the hand. The supporting frame is generally welded on the jib diagonal.

[0003] However, this fixed mode of the supporting frame has the following defects: the safety belt hook used by the workers in the high-altitude operation is a hook with a self-locking function, that is, a spring card is arranged at the opening of the hook to lock the opening of the hook. This kind of safety belt hook has been widely used. The spring card is originally used to improve the safety factor, but the workers will take off the safety belt hook intermittently during walking, so as to avoid the jib diagonal. That is, after the safety belt hook reaches the welding point between one supporting frame and the jib diagonal, the safety belt hook cannot continue to slide forward along the supporting frame due to the obstruction of the welding point. Therefore, the spring card at the opening of the safety belt hook must be opened to leave an opening, and the safety belt hook is taken off from the supporting frame through the opening, and then the safety belt hook jumps over the above-mentioned welding point, and then the safety belt hook is hung on the next supporting frame, and finally the spring card is clamped again to prevent the safety belt hook from falling off. During the process of jumping over the above-mentioned welding point, since the safety belt hook has no any hanging basis, and the worker's attention is focused on hanging the safety belt hook on the next supporting frame, it may cause greater falling risk. CONTENT OF THE UTILITY MODEL

[0004] The utility model solves the technical problem that a tower crane jib supporting frame mounting structure is provided, which can realize the sliding of the safety belt hook along the supporting frame without taking off the safety belt hook.

[0005] The technical scheme adopted by the utility model to solve the technical problem is as follows: a tower crane jib supporting frame mounting structure, which comprises a supporting frame and a jib diagonal of a jib, the supporting frame is arranged along the extension direction of the jib, and comprises a connecting clasp ring, the connecting clasp ring comprises a diagonal clasp ring, a connecting plate and a supporting frame clasp ring which are fixedly connected in sequence, the diagonal clasp ring is clamped and arranged on the jib diagonal, and the supporting frame clasp ring is clamped and arranged on the supporting frame.

[0006] Furthermore, the handrail retaining ring includes a locking slot, which is used to engage the handrail with the retaining ring.

[0007] Furthermore, it includes at least two handrails, which are arranged coaxially, and the ends of two adjacent handrails are fixedly connected by sleeves.

[0008] Furthermore, the sleeve and the handrail are connected by threads.

[0009] Furthermore, the connecting plate is a thin plate structure.

[0010] The beneficial effects of this utility model are as follows: 1. The handrail is set on the inclined bar of the lifting boom via a connecting ring. In actual use, the spring clip of the safety belt hook only needs to be slightly opened to allow the safety belt hook to pass smoothly through the connecting plate of the connecting ring and be hooked onto the next section of the handrail. Throughout the process of passing through the connecting ring, the safety belt hook is always ready to be hooked, eliminating the dangerous situation of the safety belt hook being suspended in the air as in traditional methods, greatly improving construction safety. 2. The connecting ring is fixedly set on the inclined bar of the lifting boom, providing a load-bearing base. The handrail is then attached to the connecting ring, allowing for convenient disassembly and replacement of the handrail, ensuring construction efficiency. This utility model is particularly suitable for the installation of handrails on tower crane lifting booms. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0012] Figure 2 This is a schematic diagram of the connecting ring of this utility model.

[0013] Figure 3 This is a schematic diagram of the sleeve of this utility model.

[0014] Figure 4 This is a schematic diagram of the handrail of this utility model.

[0015] The markings in the diagram are: 1. Handrail; 2. Connecting ring; 21. Diagonal bar ring; 22. Connecting plate; 23. Handrail ring; 231. Sleeve; 3. Sleeve inner cavity; 31. Lifting arm diagonal bar; 4. Lifting arm; 5. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figures 1 to 4The tower crane boom handrail installation structure shown includes a boom 5 extending in a straight line. Several boom diagonal braces 4 are provided on the boom 5 to enhance its structural strength. Using the boom diagonal braces 4 as a support, connecting rings 2 are installed on the boom diagonal braces 4, and then the handrail 1 is snapped onto the connecting rings 2.

[0018] Regarding the connecting ring 2, it includes the diagonal bar ring 21, the connecting plate 22, and the handrail ring 23. For example... Figure 2 As shown, the diagonal bar retaining ring 21 is a closed circular ring. It can be snapped onto the diagonal bar 4 of the lifting arm 5 during production, eliminating the need for subsequent installation of the connecting retaining ring 2. Furthermore, the connection between the diagonal bar retaining ring 21 and the diagonal bar 4 can be welded for reinforcement. The handrail retaining ring 23 has a locking slot 231 for engaging the handrail 1. Since the handrail 1 is generally a rod extending in a straight line, all handrail retaining rings 23 are coaxially arranged. The connecting plate 22 is preferably a thin plate structure, ensuring connection strength while facilitating the passage of the safety belt hook. The connecting retaining ring 2 can be made of steel plate, ensuring structural strength while allowing for a thinner connecting plate 22, facilitating the passage of the safety belt hook.

[0019] The two adjacent handrails 1 can be connected by a sleeve 3. The inner cavity 31 of the sleeve 3 is provided with a thread, which engages with the thread at the end of the handrail 1 to connect the handrails 1 into one unit and snap onto the lifting arm 5.

[0020] In actual use, first, the safety belt hook is normally attached to the handrail 1. As the safety belt hook slides forward, when it reaches the connecting ring 2, the spring clip, which functions as a self-locking mechanism, is slightly pressed to create a tiny opening. The spring clip passes through this tiny opening along the thickness direction of the connecting plate 22 of the connecting ring 2, allowing the safety belt hook to pass through the connecting ring 2 and move to the next section of the handrail 1. Finally, the spring clip is simply locked back in place to achieve self-locking, and the safety belt hook is reconnected to the handrail 1. Throughout this process, the safety belt hook remains in a safe attachment state to both the handrail 1 and the connecting ring 2, and there is no dangerous situation where the safety belt hook is suspended in mid-air, thus ensuring the safety of the worker.

Claims

1. A tower crane boom handrail installation structure, comprising a handrail (1) and boom diagonal braces (4) of the boom (5), wherein the handrail (1) is arranged along the extension direction of the boom (5), characterized in that: The system includes a connecting ring (2), which includes a diagonal bar ring (21), a connecting plate (22), and a handrail ring (23) that are fixedly connected in sequence. The diagonal bar ring (21) is snapped onto the diagonal bar (4) of the crane arm, and the handrail ring (23) is snapped onto the handrail (1).

2. The tower crane boom handrail installation structure as described in claim 1, characterized in that: The handrail locking ring (23) includes a locking slot (231), which is used to lock the handrail (1) into the handrail locking ring (23).

3. The tower crane boom handrail installation structure as described in claim 1 or 2, characterized in that: It includes at least two railings (1), which are arranged coaxially, and the ends of two adjacent railings (1) are fixedly connected by sleeves (3).

4. The tower crane boom handrail installation structure as described in claim 3, characterized in that: The sleeve (3) and the railing (1) are connected by threads.

5. The tower crane boom handrail installation structure as described in claim 1 or 2, characterized in that: The connecting plate (22) is a thin plate structure.

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