An automatic corner lock and protective device for preventing falls
By combining the design of an automatic anti-fall angle lock and a safety fence rope, the safety hazard of workers falling from heights during train container operations has been solved. It achieves automatic locking and buffer protection without manual operation, improving the safety and convenience of the operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NO 4 WATER TERMINAL CORP TIANJIN PORT
- Filing Date
- 2025-04-23
- Publication Date
- 2026-07-31
AI Technical Summary
In the operation of loading containers by train, the safety hazard of workers falling from heights has not been effectively addressed. Existing fall protection equipment requires manual operation and poses safety risks.
An automatic anti-fall corner lock device was designed, including a pin, a support member, and a positioning rod. It is installed under the container using the support rod and automatically locks itself onto the container. Combined with a safety fence rope, it can lock the safety rope without the need for manual climbing, providing cushioning protection.
It enables automatic locking of safety ropes without requiring workers to climb to the height first, reducing safety hazards and ensuring the safety and convenience of operators when working on containers.
Smart Images
Figure CN224573131U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of safety protection tools for working at heights, and in particular to an automatic anti-fall angle lock and protective device, which is a special protective attachment for personnel working on high-altitude train containers. Background Technology
[0002] During the process of loading containers onto trains, workers need to climb to the top of the containers to take photos and collect data, perform cleaning operations, or direct heavy machinery to load and unload containers. In this process, workers need to climb to a height, as the top of the container is 3.5 to 4 meters above the ground. In case of an accident, there is a risk of falling from a height. To prevent people from falling and to increase safety protection, an automatic corner lock for preventing falls was invented.
[0003] The automatic fall arrestor is used in combination and includes the automatic fall arrestor, safety fence rope, personnel safety fall arrest rope, and support rod. This project provides protection for operators working on containers in case of a fall, acting as a buffer to prevent a direct impact to the ground.
[0004] The key technological innovation lies in the automatic angle lock, a new type of tool that automatically locks without manual intervention. Simply insert it into the slot on the top of the container for automatic locking. The automatic angle lock can be installed on the container from below using a support rod, without requiring workers to climb up first. Once personnel are on the top of the container, their safety fall arrest rope can be securely locked to the automatic angle lock, achieving a fall protection function without any safety hazards. Utility Model Content
[0005] The purpose of this utility model is to provide an automatic corner lock for preventing falls, in order to address the technical deficiencies existing in the prior art.
[0006] Another objective of this invention is to provide a protective device based on the aforementioned automatic corner lock for preventing falls.
[0007] The technical solution adopted to achieve the purpose of this utility model is:
[0008] An automatic corner lock for preventing falls includes a pin, a support member, and a positioning rod. The lower part of the positioning rod is fixed to one end of the support member, and the other end of the support member is fixed with a slot and a plug. A locking pin is fixed to the bottom end of the positioning rod, and a corner eye is fixed to the top of the positioning rod. One end of the pin has a locking groove for the locking pin to be inserted, and the other end of the pin has a through hole for the plug to be inserted. A connecting block is fixed to the end of the plug to prevent the plug from coming out of the through hole.
[0009] In the above technical solution, the slot is tilted and fixed on the support.
[0010] In the above technical solution, the slot is a cylindrical structure with one end open and the other end closed, with a locking rod inserted.
[0011] In the above technical solution, the number of insertion rods is one to four.
[0012] In the above technical solution, the bottoms of multiple insertion rods are fixed to one of the connecting blocks.
[0013] In the above technical solution, the pin is a hollow round bar structure with an elliptical cross-section.
[0014] In the above technical solution, the pin and the positioning rod are made of aluminum alloy.
[0015] In the above technical solution, the insert rod, locking pin, slot, and support are made of stainless steel.
[0016] In another aspect of this utility model, a protective device includes two aforementioned automatic corner locks for preventing falls and a safety fence rope. Each automatic corner lock for preventing falls is installed on the top corner of a container, and the two ends of the safety fence rope are respectively fixed to the locking holes of the two automatic corner locks for preventing falls.
[0017] Another aspect of this utility model is a protective device comprising four of the aforementioned automatic anti-fall corner locks and four safety fence ropes. Each automatic anti-fall corner lock is installed on the top corner of a container, and the two ends of each of the safety fence ropes are respectively fixed to the locking holes of two adjacent automatic anti-fall corner locks.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] 1. The automatic corner lock of this utility model provides high-altitude protection for operators when working on top of containers. In the event of a fall, it acts as a buffer and prevents the object from falling directly to the ground, greatly reducing safety hazards.
[0020] 2. Automatic corner locks can be installed on containers from below using a support rod without requiring workers to climb up first. Once workers have climbed to the top of the container, their safety ropes can be secured to the automatic corner locks, eliminating safety hazards and providing fall protection.
[0021] 3. The automatic corner lock is inserted into the slots at the top and corners of the container. The pin of the corner lock automatically falls down into the slot and locks the container without the need for manual climbing. It ensures a secure lock during operation and does not come out of the slot. It is convenient and quick to operate and plays a role in protecting personnel. Attached Figure Description
[0022] Figure 1 The diagram shown is a structural schematic of this utility model (the locking pin is not inserted into the locking groove).
[0023] Figure 2 The diagram shown is a structural schematic of this utility model (locking pin inserted into the locking groove).
[0024] Figure 3 The diagram shown is a structural schematic of the support rod.
[0025] Figure 4 This is a schematic diagram of the locking state when the present invention is assembled on the top or corner of a container.
[0026] In the diagram: 1-pin, 2-support, 3-positioning rod, 4-slot, 5-insertion rod, 6-locking pin, 7-locking groove, 8-through hole, 9-connecting block, 10-locking eye, 11-locking rod, 12-container top and corner. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
[0028] Example 1
[0029] An automatic corner lock for preventing falls includes a pin 1, a support member 2, and a positioning rod 3. The lower part of the positioning rod 3 is fixed to one end of the support member 2. The other end of the support member 2 is fixed with a slot 4 and a plug rod 5. The bottom end of the positioning rod 3 is fixed with a locking pin 6, and the top of the positioning rod 3 is fixed with a corner eye 10. One end of the pin 1 forms a locking groove 7 for the locking pin 6 to be inserted, and the other end of the pin 1 forms a through hole 8 for the plug rod 5 to be inserted. The end of the plug rod 5 is fixed with a connecting block 9 to prevent the plug rod 5 from coming out of the through hole 8.
[0030] The dimensions of the automatic corner lock for fall arrest are made according to the national standard dimensions of the container roof corner 12. During use, the operator stands on the ground and inserts the locking lever 11 into the slot 4. The automatic corner lock is then installed inside the container roof corner 12 from below the container. During installation, the pin 1 is inserted into the slot of the container roof corner 12. When the locking lever 11 is removed, the support 2 falls under gravity, causing the insertion rod 5 to move downwards along the through hole 8, and the locking pin 6 inserts into the locking groove 7 to form a lock. Once personnel are on the top side of the container, the safety fall arrest rope can be secured to the locking eye 10 of the automatic corner lock. To remove the automatic corner lock, the operator simply uses the locking lever 11 from below the container.
[0031] Example 2
[0032] This embodiment, based on Embodiment 1, further describes the components of the automatic corner lock for preventing falls.
[0033] Preferably, the slot 4 is fixed at an angle to the support member 2. The slot 4 is a cylindrical structure with one end open and the other end closed. In use, the support rod 11 is inserted into the slot 4 through the opening. The closure can restrict the position of the support rod 11. The height of the support rod 11 can be used to transport the anti-fall automatic corner lock to the top of the container. The angled slot 4 is more convenient to operate.
[0034] Preferably, the number of the insert rods 5 is one to four, preferably two, to ensure good guiding effect, and the bottom of the multiple insert rods 5 is fixed to one of the connecting blocks 9.
[0035] Preferably, the pin 1 is a hollow round bar with an elliptical cross-section. The hollow structure reduces the weight of the automatic corner lock for preventing falls, and the elliptical cross-section ensures good fixation with the container top and corner 12, resulting in high stability.
[0036] Preferably, the pin 1 and the positioning rod 3 are made of aluminum alloy, which is lightweight and has high strength.
[0037] Preferably, the insert 5, locking pin 6, slot 4, and support 2 are made of stainless steel.
[0038] Example 3
[0039] This embodiment provides a protective device based on embodiment 1 or embodiment 2.
[0040] A protective device includes two automatic fall arresters as described in Embodiment 1 or 2 and a safety fence rope. Each automatic fall arrester is installed on a corner 12 of the top of a container. The two ends of the safety fence rope are respectively fixed to the locking holes 10 of the two automatic fall arresters to ensure that the safety fence rope is taut. Only then can the operator lock the safety fall arrester rope to the safety fence rope, and can carry out safe work, increasing the working range on the top of the container.
[0041] Example 4
[0042] A protective device includes four automatic fall arresters as described in Embodiment 1 or 2 and four safety fence ropes. Each automatic fall arrester is installed on a corner 12 of the top of a container. The two ends of each safety fence rope are respectively fixed to the locking eye 10 of two adjacent automatic fall arresters, ensuring that all four safety fence ropes are taut. Only then can the workers lock the safety fall arrester ropes to the safety fence ropes, thus enabling safe operation and further increasing the working range on the top of the container.
[0043] For ease of explanation, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “down” of other elements or features would be positioned “up” of those other elements or features. Therefore, the exemplary term “down” can encompass both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0044] Moreover, relational terms such as “first” and “second” are used merely to distinguish one component from another that has the same name, without necessarily requiring or implying any such actual relationship or order between the components.
[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An automatic corner lock for preventing falls, characterized in that, The device includes a pin, a support member, and a positioning rod. The lower part of the positioning rod is fixed to one end of the support member, and the other end of the support member is fixed with a slot and a plug. The bottom end of the positioning rod is fixed with a locking pin, and the top of the positioning rod is fixed with a locking eye. One end of the pin has a locking groove for the locking pin to be inserted, and the other end of the pin has a through hole for the plug to be inserted. The end of the plug is fixed with a connecting block to prevent the plug from coming out of the through hole.
2. The automatic anti-fall corner lock as described in claim 1, characterized in that, The slot is fixed at an angle to the support.
3. The automatic anti-fall corner lock as described in claim 2, characterized in that, The slot is a cylindrical structure with one end open and the other end closed, with a locking rod inserted.
4. The automatic corner lock for preventing falls as described in claim 1, characterized in that, The number of the insertion rods is one to four.
5. The automatic anti-fall corner lock as described in claim 4, characterized in that, The bottoms of multiple insertion rods are fixed to one of the connecting blocks.
6. The automatic corner lock for preventing falls as described in claim 1, characterized in that, The pin is a hollow round bar structure with an elliptical cross-section.
7. The automatic corner lock for preventing falls as described in claim 1, characterized in that, The pin and positioning rod are made of aluminum alloy.
8. The automatic corner lock for preventing falls as described in claim 1, characterized in that, The insert, locking pin, slot, and support are made of stainless steel.
9. A protective device, characterized in that, It includes two automatic corner locks as described in claim 1 and a safety fence rope. Each automatic corner lock is installed on the top corner of a container, and the two ends of the safety fence rope are respectively fixed to the corner lock holes of the two automatic corner locks.
10. A protective device, characterized in that, It includes four automatic corner locks as described in claim 1 and four safety fence ropes. Each automatic corner lock is installed on the top corner of a container, and the two ends of each safety fence rope are respectively fixed to the corner lock holes of two adjacent automatic corner locks.