Device for preventing operating personnel from sliding off from top surface of container
By designing a twist lock, handle, and extension bar on the top surface of the container, the problem of the lack of fall protection on the top surface of the container is solved, a safety attachment point is provided to prevent workers from slipping, and the safety of the operation is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN PORT GRP
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-12
AI Technical Summary
The lack of effective fall protection devices on the top of existing containers poses a significant safety hazard to workers when working at heights, especially after rain or snow, which can easily lead to slips or falls and accidents.
A device comprising a turnlock, a handle, an extension bar, and a ring is designed. The turnlock is connected to the container corner fittings via a locking mechanism and is locked by rotating the handle. A ring is welded to the upper end of the extension bar for attaching a safety belt, providing a hook point to prevent falls.
It provides a safe and reliable attachment point to prevent workers from slipping off the top of the container, avoiding falls and injuries, and improving the safety of working at heights.
Smart Images
Figure CN224220630U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device for preventing workers from slipping while working on the top surface of a container, and belongs to the technical field of container loading and unloading equipment. Background Technology
[0002] During the container loading and unloading process at the port, there are various working conditions that require workers to stand on the containers to perform operations.
[0003] The first step is to secure the connections between the stacked containers. Once loaded, the containers must be tied and secured together; this process requires workers to manually operate the containers from above.
[0004] Secondly, there's the work of cleaning the container tarpaulins. When containers are loaded with waterproof goods, they are covered with special tarpaulins. These tarpaulins easily trap water, so workers usually clean them regularly. During cleaning, workers stand along the edge of the container and move along that edge.
[0005] Since a single container can exceed 2 meters in height, working on top of it constitutes high-altitude work and requires protective measures. Currently, there are no suitable fall protection devices on the top of containers, posing a significant safety hazard. Especially after rain or snow, the container roof is highly slippery and prone to falls due to residual rain or snow, potentially leading to accidents. Utility Model Content
[0006] The technical problem to be solved by this utility model is to provide a device to prevent workers from slipping off the top of a container. This device can provide a safety belt attachment point for workers operating on the container, preventing them from falling and getting injured, and avoiding safety accidents.
[0007] The technical solution to the above technical problem is:
[0008] A device for preventing workers from slipping off the top of a container includes a turnlock, a handle, an extension rod, and a ring. The locking mechanism of the turnlock is locked to the corner fittings of the container, the rotating mechanism of the turnlock is connected to the handle, the upper end of the turnlock is connected to the lower end of the extension rod, and the upper end of the extension rod is welded to the ring, which is connected to the worker's safety belt hook.
[0009] The aforementioned device for preventing workers from slipping off the top of the container includes a lock head and a guide tube. The top of the lock head is flat, and a handle and an extension rod are welded to it. The lock head and the guide tube are in a rotating fit.
[0010] The aforementioned device for preventing workers from slipping off the top of the container has a handle with a round hole at the front end, an extension rod with a retaining ring at the lower end, and a U-shaped lock that passes through the round hole at the front end of the handle and locks into the retaining ring at the lower end of the extension rod.
[0011] The beneficial effects of this utility model are:
[0012] The rotary lock of this invention can be fixedly connected to the corner fittings of a container; the operator can manually rotate the rotary lock to lock it by rotating the handle; the extension rod can ensure that there is sufficient buffer height for attaching the safety belt; the ring at the upper end of the extension rod is used to attach the safety belt; the U-lock fixes the handle to the extension rod, which can prevent the rotary lock from being accidentally opened during use.
[0013] This utility model has a simple structure and is easy to use. It can provide a safety belt attachment point for workers operating on containers, preventing them from falling and getting injured, and avoiding safety accidents. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] The following are the markings in the diagram: 1. Turnlock; 2. Handle; 3. Extension rod; 4. Ring. Detailed Implementation
[0016] This utility model consists of a rotary lock 1, a handle 2, an extension rod 3, and a ring 4.
[0017] As shown in the diagram, the locking mechanism of the rotary lock 1 is locked to the container corner fitting, and the rotating mechanism of the rotary lock 1 is connected to the handle 2. In use, the locking mechanism of the rotary lock 1 is placed on the container corner fitting, and then the handle 2 is rotated to lock the rotary lock 1 to the container corner fitting.
[0018] As shown in the figure, the rotary lock 1 is a composite structure, including a lock head and a guide tube. The top of the lock head is flat and is used to weld the handle 2 and the extension rod 3. The lock head can rotate freely inside the guide tube.
[0019] As shown in the figure, the upper end of the rotary lock 1 is connected to the lower end of the extension rod 3. The length of the extension rod 3 is set to 1.5m, which can ensure that the buffer safety belt has sufficient buffer height.
[0020] As shown in the figure, a ring 4 is welded to the upper end of the extension rod 3, and the ring 4 is connected to the hook of the worker's safety belt.
[0021] As shown in the figure, there is a round hole at the front end of the handle 2 and a retaining ring at the lower end of the extension rod 3. A U-lock can be used to lock the round hole at the front end of the handle 2 and the retaining ring at the lower end of the extension rod 3 to prevent the lock 1 from being accidentally opened during use.
[0022] This utility model includes the following two ways of use:
[0023] Method 1: Use a turnlock 1 and an extension bar 3. Lock the turnlock 1 to the corner fitting of the container, and then connect the safety belt of the operator on the container to the ring 4 at the front end of the extension bar 3 to prevent the operator from slipping.
[0024] Method 2: Using two turnlocks 1 and extension rods 3, the two turnlocks 1 are locked onto the diagonally opposite corner fittings at both ends of the container. A rope is connected between the rings 4 at the front ends of the two extension rods 3. The worker's safety belt is attached to the rope and can move along the rope. This method can be used for cleaning tarpaulins along the top edge of open-top containers.
[0025] An embodiment of this utility model is as follows:
[0026] The model of the rotary lock 1 is THT straight handle rotary lock, and the length of the handle 2 is 150mm and the width is 40mm;
[0027] The extension rod 3 has a diameter of 30mm and a length of 1.5m;
[0028] The diameter of ring 4 is 45mm.
Claims
1. A device for preventing workers from slipping off the top of a container, characterized in that: It includes a rotary lock (1), a handle (2), an extension rod (3), and a ring (4). The locking mechanism of the rotary lock (1) is locked to the corner fitting of the container. The rotating mechanism of the rotary lock (1) is connected to the handle (2). The upper end of the rotary lock (1) is connected to the lower end of the extension rod (3). The upper end of the extension rod (3) is welded to the ring (4). The ring (4) is connected to the safety belt hook of the operator.
2. The device for preventing workers from slipping off the top of a container according to claim 1, characterized in that: The rotary lock (1) includes a lock head and a guide tube. The top of the lock head is flat, and a handle (2) and an extension rod (3) are welded together. The lock head and the guide tube are in a rotating fit.
3. The device for preventing workers from slipping off the top of a container according to claim 1, characterized in that: The handle (2) has a round hole at the front end, and the extension rod (3) has a fixing ring at the lower end. The U-shaped lock passes through the round hole at the front end of the handle (2) and locks the extension rod (3) at the lower end.