Self-locking type safety lock for edge and high-altitude operation protection

Abstract

The utility model discloses a self-locking type safety lock for edge and high-altitude operation protection, which comprises a lock rod seat mounted on a protective door through a screw and a lock plate seat mounted on a protective fence through a screw, and a lock rod is horizontally and fixedly mounted on the lock rod seat; a sliding groove is formed in the middle of the lock plate seat, a sliding block is slidably installed in the sliding groove, a left lock plate and a right lock plate are arranged at the two ends of the upper portion of the sliding block respectively, lock holes are formed in the lower portions of the left lock plate and the right lock plate, and arcs capable of smoothly transitioning to the lock holes are arranged on the outer sides of the lower ends of the left lock plate and the right lock plate. A protruding check block is arranged on the lower portion of the sliding block, and a balance weight is arranged in the check block. According to the device, the protective door can be automatically locked after being closed under the gravity action of the counter weight, and the device is simple in design, easy to manufacture and install, convenient to use, safe, reliable and suitable for various environments such as building construction, bridge maintenance, ship repair and the like needing high-altitude operation and edge operation.

Description

Technical Field

[0001] This utility model relates to the field of safety protection facilities technology, specifically a self-locking safety lock for edge and high-altitude operation protection. Background Technology

[0002] In construction, equipment maintenance, and other industries requiring work at heights or near edges, guardrails are typically used to protect workers. These guardrails often have safety gates for workers to enter and exit the work area. Existing safety gates use horizontally moving locking pins, requiring workers to manually pull the pins horizontally into the locking holes to lock them. However, in many cases, workers struggle to lock the gates due to the weight of tools or heavy objects in their hands. If spring locks were used for automatic locking, they could accidentally open under significant vibration or external force, posing a serious safety hazard to personnel and facilities, such as falls or other injuries. Therefore, there is a need to develop a user-friendly, safe, and reliable self-locking safety lock suitable for various environments requiring work at heights and near edges, such as construction, bridge maintenance, and ship repair. Utility Model Content

[0003] The purpose of this utility model is to provide a self-locking safety lock that is easy to use, safe and reliable, and suitable for various environments requiring high-altitude and edge-prone operations, such as building construction, bridge maintenance, and ship repair.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-locking safety lock for edge and high-altitude work protection, comprising a lock rod seat mounted on a protective door by screws, and a lock plate seat mounted on a guardrail by screws. A lock rod is horizontally fixedly mounted on the lock rod seat. A sliding groove is provided in the middle of the lock plate seat, and a slider is slidably mounted in the groove. A left lock plate and a right lock plate are respectively provided at the two ends of the upper part of the slider. A keyhole is provided at the lower part of the left lock plate and the right lock plate. An arc is provided on the outer side of the lower end of the left lock plate and the right lock plate to smoothly transition to the keyhole. A protruding stop is provided at the lower part of the slider, and a counterweight is provided inside the stop.

[0005] Furthermore, the end of the locking rod near the lock plate seat extends beyond the edge of the protective door. When the protective door is completely closed, the locking rod is engaged in the gap between the left and right lock plates and the lock plate seat. Then, the weight of the counterweight drives the slider to move downward, thereby engaging the locking rod in the keyhole to achieve self-locking.

[0006] Furthermore, the diameter of the lock bar is matched with the diameter of the keyhole.

[0007] Furthermore, the width of the groove is adapted to the thickness of the slider, and the length of the groove is adapted to the width of the slider.

[0008] The beneficial effects of this utility model are as follows: This utility model utilizes the gravity of a counterweight to automatically lock the protective door after it is closed. The slider automatically moves downward under the action of the counterweight, firmly locking the locking rod into the keyhole, ensuring that the protective door will not be accidentally opened due to vibration or external force after locking. It is very convenient to use, requiring no manual locking operation from workers, making it particularly suitable for use when workers' hands are occupied. This not only improves the convenience and efficiency of operation but also reduces the safety hazards caused by accidental opening of the protective door. This device is suitable for various environments requiring high-altitude and edge-prone operations, such as building construction, bridge maintenance, and ship repair. It is highly versatile and can be widely applied to different types of protective doors and guardrail structures, possessing a promising market prospect. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0010] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle AA section;

[0011] Figure 3 This is a schematic diagram of the lock plate seat structure;

[0012] In the diagram: 1-locking bar seat, 2-locking bar, 3-slider, 31-stop, 41-left locking plate, 42-right locking plate, 43-keyhole, 5-locking plate seat, 51-slide groove, 6-counterweight. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1 This utility model provides a technical solution: a self-locking safety lock for edge and high-altitude work protection, including a lock rod seat 1 installed on a protective door by screws, and a lock plate seat 5 installed on a guardrail by screws. A lock rod 2 is horizontally fixedly installed on the lock rod seat 1. A sliding groove 51 is provided in the middle of the lock plate seat 5, and a slider 3 is slidably installed in the sliding groove 51. A left lock plate 41 and a right lock plate 42 are respectively provided at the two ends of the upper part of the slider 3. A keyhole 43 is provided at the lower part of the left lock plate 41 and the right lock plate 42. An arc is provided on the outer side of the lower end of the left lock plate 41 and the right lock plate 42 so as to smoothly transition to the keyhole 43. A protruding stop 31 is provided at the lower part of the slider 3, and a counterweight 6 is provided in the stop 31.

[0015] The end of the locking rod 2 near the locking plate seat 5 extends beyond the edge of the protective door. When the protective door is completely closed, the locking rod 2 is inserted into the gap between the left locking plate 41, the right locking plate 42 and the locking plate seat 5. Then, the counterweight 6 moves the slider 3 downward by its own weight, thereby locking the locking rod 2 into the keyhole 43, achieving the purpose of self-locking.

[0016] The diameter of the locking bar 2 is compatible with the diameter of the keyhole 43.

[0017] The width of the groove 51 is adapted to the thickness of the slider 3, and the length of the groove 51 is adapted to the width of the slider 3.

[0018] This utility model provides a mechanical self-locking safety lock comprising basic components such as a locking rod seat 1, a locking plate seat 5, a locking rod 2, a slider 3, and a counterweight 6. The locking rod 2 is precisely matched with the keyhole 43 diameters of the left locking plate 41 and the right locking plate 42. Utilizing the gravity of the counterweight 6, the slider 3 is guided automatically downwards through a precise groove 51, securely locking the locking rod 2 into the keyhole 43, thus achieving automatic locking of the protective door after closure. This ensures that the protective door will not be accidentally opened due to vibration or external force after locking, guaranteeing the stability and reliability of the locking process. Because the device has an automatic locking function, operators do not need to manually lock it, making it particularly suitable for use when workers' hands are occupied. This not only improves the convenience and efficiency of operation but also reduces the safety hazards caused by accidental opening of the protective door. All components in this device are fixed with screws, making it easy to manufacture and install, convenient to replace and maintain, and reducing usage and maintenance costs. This device is suitable for various environments requiring high-altitude and edge-prone operations, such as building construction, bridge maintenance, and ship repair. This self-locking safety lock is highly versatile and can be widely used in different types of protective doors and guardrail structures, showing promising market prospects.

Claims

1. A self-locking safety lock for edge and aerial work protection, characterized in that: The application relates to a lock rod seat (1) which is mounted on a protective door through screws and a lock plate seat (5) which is mounted on a protective fence through screws, wherein the lock rod seat (1) is horizontally fixedly mounted with a lock rod (2); the middle part of the lock plate seat (5) is provided with a sliding groove (51), the sliding groove (51) is slidably mounted with a sliding block (3), the upper part of the sliding block (3) is respectively provided with a left lock plate (41) and a right lock plate (42), the lower part of the left lock plate (41) and the right lock plate (42) is provided with a lock eye (43), the lower end of the left lock plate (41) and the right lock plate (42) is provided with a circular arc which can be smoothly connected to the lock eye (43); the lower part of the sliding block (3) is provided with a protruding stop block (31), the stop block (31) is provided with a counterweight (6).

2. A self-locking safety lock for edge protection and aerial work protection according to claim 1, characterized in that: The end of the lock rod (2) close to the lock plate seat (5) is extended out of the edge of the protective door, when the protective door is completely closed, the lock rod (2) is clamped into the gap between the left lock plate (41), the right lock plate (42) and the lock plate seat (5), then the sliding block (3) is driven to move downwards by the gravity of the counterweight (6) so as to clamp the lock rod (2) into the lock eye (43), and the self-locking purpose is achieved.

3. A self-locking safety lock for edge protection and aerial work protection according to claim 1, characterized in that: The diameter of the lock rod (2) is matched with the diameter of the lock eye (43).

4. A self-locking safety lock for edge and overhead protection according to claim 1, characterized in that: The width of the sliding groove (51) is matched with the thickness of the sliding block (3), and the length of the sliding groove (51) is matched with the width of the sliding block (3).

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