Substation primary equipment maintenance anti-falling device fixing frame

Abstract

This utility model discloses a fixing frame for a fall arrestor during the maintenance of primary equipment in a substation, comprising a hook, a notch, a stop bar, and a bidirectional elastic reset structure. The hook has a notch adapted to fit a steel structural beam, allowing it to be easily hooked onto the beam and moved via reinforcing ribs. A movable stop bar seals the notch, preventing the hook from detaching from the beam during movement. Simultaneously, when moving to the reinforcing rib, the bidirectional elastic reset structure opens, facilitating passage. After passing the rib, the structure automatically resets, maintaining the shielding effect. Therefore, the hook does not need to be removed from the beam, allowing continuous movement along the beam and preventing issues with unsecured installation during disassembly or repositioning.

Description

Technical Field

[0001] This utility model relates to the field of fall arrestor fixing technology, specifically a fall arrestor fixing bracket for substation primary equipment maintenance. Background Technology

[0002] For a long time, substation primary equipment has followed a combined approach of regular and reactive maintenance, focusing on handling equipment failures after they occur. While this maintenance model has played an important role in reducing sudden accidents involving substation primary equipment, it neglects the actual condition of the equipment and consumes a lot of manpower and resources. Therefore, it is becoming increasingly difficult to meet the needs of modern equipment diagnosis and management. With users' increasing demands for power supply reliability, substations urgently need to implement targeted maintenance management methods for primary equipment, taking into account factors such as efficiency, safety, and the environment. At the same time, the fall arrestor fixing frame required for the maintenance of substation primary equipment has also emerged.

[0003] Existing fall arrestors are typically hooked directly onto the steel structure beams above the primary equipment in substations during high-altitude operations. While this provides fall protection, the hooks are easily obstructed by the internal reinforcing ribs of the steel structure beams during movement, preventing long-distance travel and necessitating disassembly and repositioning. However, disassembly leaves the fall arrestor unsecured. Therefore, this paper proposes a fall arrestor fixing bracket for substation primary equipment maintenance to address this issue. Utility Model Content

[0004] The purpose of this utility model is to provide a fixing bracket for a fall arrestor during the maintenance of primary equipment in a substation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A substation primary equipment maintenance fall arrestor fixing frame includes a hook frame adapted to a circular tube on a steel structure beam. The hook frame has a notch adapted to the steel structure beam, and the hook frame can be hooked onto the steel structure beam through the notch. A stop bar adapted to the notch is movably installed in the notch. The top of the stop bar has a hinge seat, and the top of the notch has a hinge groove. The hinge seat and the hinge groove are hinged by a pin. The outside of the pin has a bidirectional elastic reset structure. A hanging ring is fixedly connected to the bottom surface of the hook frame, and a protrusion is fixedly connected to the bottom surface of the stop bar. A guide groove adapted to the protrusion is opened on the bottom surface of the notch. The protrusion is inserted into the guide groove and slidably connected. Both the protrusion and the guide groove are arc-shaped and concentric with the pin.

[0007] As a further embodiment of this utility model: the bidirectional elastic reset structure includes a circular guide rod and a reset spring.

[0008] As a further embodiment of this utility model: the circular guide rod is concentrically arranged with the pin shaft, the circular guide rod is fixedly connected to the hook frame, the circular guide rod slides through the stop rod, and the stop rod is provided with an arc hole for the circular guide rod to pass through and slide.

[0009] As a further embodiment of this utility model: two return springs are symmetrically provided, and the two return springs are symmetrically sleeved on the circular guide rod. The two return springs are respectively set on both sides of the hook frame and the stop rod. One end of the return spring abuts against the stop rod, and the other end of the return spring abuts against the hook frame.

[0010] As a further embodiment of this utility model: the bottom surface of the hook frame corresponding to the guide groove is slidably connected to a limiting rod, the hook frame is provided with a round hole for the limiting rod to pass through and slide, the top end of the limiting rod is inserted into the protrusion, the protrusion is provided with an insertion hole adapted to the limiting rod, the bottom end of the limiting rod passes through the hook frame and is fixedly connected to a pull handle, a stop piece is fixedly connected to the limiting rod, the hook frame is provided with a movable cavity corresponding to and adapted to the stop piece, the stop piece is slidably connected in the movable cavity, and an elastic spring is provided between the bottom surface of the stop piece and the inner wall of the movable cavity.

[0011] As a further improvement of this utility model: the top of the hook frame has two symmetrically opened mounting cavities, and guide rollers are rotatably installed in each mounting cavity.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The hook of this utility model has a notch, which allows it to be easily hooked onto a steel structure beam and moved by the reinforcing ribs on the steel structure beam. At the same time, a movable stop bar forms a seal at the notch, preventing the hook from detaching from the steel structure beam during movement. It also ensures that when it moves to the position of the reinforcing rib of the steel structure beam, the compression of the bidirectional elastic reset structure creates an opening effect, facilitating passage through the reinforcing rib position. After passing through the reinforcing rib position, the bidirectional elastic reset structure automatically resets the hook, continuing to provide a shielding effect. Therefore, the hook does not need to be removed from the steel structure beam and can be moved along the steel structure beam indefinitely, avoiding the problem of lack of fixation during disassembly and repositioning.

[0014] 2. This utility model uses a circular guide rod in conjunction with two return springs to provide elastic support for the stop bar, thereby facilitating the elastic compression and reset of the stop bar on both sides, and making it convenient for the hook frame to move in both directions along the steel structure beam. The stop bar can be opened and closed in both directions.

[0015] 3. The bottom end of the stop bar of this utility model is limited in front and back by inserting a protrusion into the guide groove. At the same time, by pulling the limiting rod, the insertion of the limiting rod into the insertion hole is controlled, and the limitation of the protrusion in the guide groove is controlled. Thus, when the stop bar does not need to be opened or closed, the stop bar is limited, which prevents the stop bar from opening and causing the gap to be exposed, which may pose a risk of hook detachment.

[0016] 4. In this utility model, two guide rollers are symmetrically installed on the top of the hook frame through the mounting cavity, which creates an auxiliary movement effect when the hook frame is hooked on the steel structure beam, thereby improving the smoothness of movement. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a fall arrestor fixing frame for primary equipment maintenance in a substation.

[0018] Figure 2 This is a diagram illustrating the hook frame in a substation primary equipment maintenance fall arrestor fixing frame.

[0019] Figure 3 This is a top-view perspective view of a fixing frame for a fall arrestor during the maintenance of primary equipment in a substation.

[0020] Figure 4 This is a partial structural cross-sectional view of a fall arrestor fixing frame for primary equipment maintenance in a substation.

[0021] In the diagram: 1. Steel structure beam; 2. Hook frame; 3. Notch; 4. Stop bar; 5. Hinge seat; 6. Hinge groove; 7. Guide roller; 8. Pin shaft; 9. Two-way elastic reset structure; 10. Hanging ring; 11. Protrusion; 12. Guide groove; 13. Circular guide rod; 14. Reset spring; 15. Limiting rod; 16. Insertion hole; 17. Pull handle; 18. Stop plate; 19. Movable cavity; 20. Elastic spring; 21. Mounting cavity. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4In this embodiment of the utility model, a substation primary equipment maintenance fall arrestor fixing frame includes a hook 2 adapted to a circular tube on a steel structure beam 1. The hook 2 has a notch 3 adapted to the steel structure beam 1. The hook 2 can be hooked onto the steel structure beam 1 through the cooperation of the notch 3. A stop bar 4 adapted to it is movably installed in the notch 3. The top of the stop bar 4 is provided with a hinge seat 5. The top of the notch 3 is provided with a hinge groove 6. The hinge seat 5 and the hinge groove 6 are hinged by a pin 8. A two-way elastic reset structure 9 is provided on the outside of the pin 8. A hanging ring 10 is fixedly connected to the bottom surface of the hook 2. A protrusion 11 is fixedly connected to the bottom surface of the stop bar 4. A guide groove 12 adapted to the protrusion 11 is opened on the bottom surface of the notch 3. The protrusion 11 is inserted into the guide groove 12 and slidably connected. The protrusion 11 and the guide groove 12 are both arc-shaped. The protrusion 11 and the guide groove 12 are concentrically arranged with the pin 8.

[0024] The hook 2 has a notch 3, which allows it to be easily hooked onto the steel structure beam 1 and moved by the reinforcing ribs on the steel structure beam 1. At the same time, the movable stop bar 4 forms a blockage at the notch 3, preventing the hook 2 from detaching from the steel structure beam 1 through the notch 3 during movement. It also ensures that when it moves to the position of the reinforcing rib of the steel structure beam 1, the compression of the bidirectional elastic reset structure 9 creates an opening effect, facilitating passage through the reinforcing rib position. After passing through the reinforcing rib position, it automatically resets under the action of the bidirectional elastic reset structure 9, continuing to provide a shielding effect. Therefore, the hook 2 does not need to be removed from the steel structure beam 1 and can move along the steel structure beam 1 indefinitely, avoiding the problem of lack of fixation when disassembling and repositioning.

[0025] The bidirectional elastic reset structure 9 includes a circular guide rod 13 and a reset spring 14.

[0026] The circular guide rod 13 is concentrically set with the pin 8. The circular guide rod 13 is fixedly connected to the hook 2. The circular guide rod 13 slides through the stop rod 4. The stop rod 4 has an arc hole for the circular guide rod 13 to pass through and slide.

[0027] Two return springs 14 are symmetrically provided. The two return springs 14 are symmetrically sleeved on the circular guide rod 13. The two return springs 14 are respectively set on both sides of the hook frame 2 and the stop rod 4. One end of the return spring 14 abuts against the stop rod 4, and the other end of the return spring 14 abuts against the hook frame 2.

[0028] The stop bar 4 is elastically supported by the circular guide rod 13 and two return springs 14, which facilitates the elastic compression and return of the stop bar 4 on both sides, and makes it easy for the hook frame 2 to move in two directions along the steel structure beam 1. The stop bar 4 can be opened and closed in both directions.

[0029] The hook frame 2 is slidably connected to the bottom surface of the guide groove 12 with a limiting rod 15. The hook frame 2 has a round hole for the limiting rod 15 to pass through and slide. The top end of the limiting rod 15 is inserted into the protrusion 11. The protrusion 11 has an insertion hole 16 that matches the limiting rod 15. The bottom end of the limiting rod 15 passes through the hook frame 2 and is fixedly connected to a pull handle 17. A stop piece 18 is fixedly connected to the limiting rod 15. The hook frame 2 has a movable cavity 19 that corresponds to and matches the stop piece 18. The stop piece 18 is slidably connected in the movable cavity 19. A spring spring 20 is provided between the bottom surface of the stop piece 18 and the inner wall of the movable cavity 19.

[0030] The bottom end of the stop bar 4 is inserted into the guide groove 12 by the protrusion 11 to form a front and rear limit. At the same time, by pulling the limit rod 15, the insertion of the limit rod 15 into the insertion hole 16 is controlled, and the limitation of the protrusion 11 in the guide groove 12 is controlled. Thus, when the stop bar 4 does not need to be opened or closed, the stop bar 4 is limited to prevent the stop bar 4 from opening, causing the notch 3 to be exposed, and posing a risk of hook 2 supporting the hook.

[0031] Two mounting cavities 21 are symmetrically opened on the top of the hook frame 2, and guide rollers 7 are rotatably installed in each mounting cavity 21.

[0032] Two guide rollers 7 are symmetrically installed on the top of the hook frame 2 through the mounting cavity 21. When the hook frame 2 is hooked onto the steel structure beam 1, it forms an auxiliary movement effect and improves the smoothness of movement.

[0033] The working principle of this utility model is as follows:

[0034] In use, by pulling down the limit rod 15 via the handle 17, the stop piece 18 slides within the movable cavity 19, thereby compressing the elastic spring 20. This causes the limit rod 15 to disengage from the insertion hole 16, pushing the stop rod 4 and compressing the return spring 14 on one side, opening the notch 3. At this point, the hook 2 can be hooked onto the steel structure beam 1 through the notch 3. Further loosening the stop rod 4 causes it to return to its original position under the action of the return spring 14. At this point, the protrusion 11 inserts into the guide groove 12. Further loosening the handle 17 causes the elastic spring 20 to push the stop piece 18 back to its original position, thus inserting the limit rod 15 into the insertion hole 16, limiting the protrusion 11. This allows the fall arrestor to be hooked onto the hanging ring 10, forming a connection. When workers extend along the steel structure beam 1... When moving to the adjacent position for construction, the hook 2 can move along the steel structure beam 1 via the guide roller 7. When it moves to the position of the reinforcing rib, the limit rod 15 is pulled down by the pull handle 17, and the stop piece 18 slides in the movable cavity 19, thereby compressing the elastic spring 20. This causes the limit rod 15 to disengage from the insertion hole 16. At this time, the stop rod 4 is directly squeezed against the reinforcing rib, causing the stop rod 4 to be squeezed off course. Thus, the hook 2 can pass through the notch 3 and continue to move after passing the position of the reinforcing rib. At this time, the stop rod 4 is reset under the action of the return spring 14, and the pull handle 17 is further released. At this time, the elastic spring 20 pushes the stop piece 18 to reset, so that the limit rod 15 is inserted into the insertion hole 16, thereby limiting the protrusion 11 and maintaining a safe hooking effect.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixing frame for a fall arrestor during maintenance of primary equipment in a substation, comprising a hook (2) adapted to a circular pipe on a steel structure beam (1), characterized in that: The hook frame (2) is provided with a notch (3) that is compatible with the steel structure beam (1). A stop bar (4) that is compatible with it is movably installed in the notch (3). A hinge seat (5) is provided on the top of the stop bar (4). A hinge groove (6) is provided on the top of the notch (3). The hinge seat (5) and the hinge groove (6) are hinged by a pin (8). A two-way elastic reset structure (9) is provided on the outside of the pin (8). A hanging ring (10) is fixedly connected to the bottom surface of the hook frame (2). A protrusion (11) is fixedly connected to the bottom surface of the stop bar (4). A guide groove (12) that is compatible with the protrusion (11) is opened on the bottom surface of the notch (3). The protrusion (11) is inserted into the guide groove (12) and slidably connected.

2. The substation primary equipment maintenance anti-falling device fixing frame according to claim 1, characterized in that: The bidirectional elastic reset structure (9) includes a circular guide rod (13) and a reset spring (14).

3. The substation primary equipment maintenance anti-falling device fixing frame according to claim 2, characterized in that: The circular guide rod (13) is fixedly connected to the hook frame (2). The circular guide rod (13) slides through the stop rod (4). The stop rod (4) has an arc hole for the circular guide rod (13) to pass through and slide.

4. The substation primary equipment maintenance anti-falling device fixing frame according to claim 2, characterized in that: Two return springs (14) are symmetrically provided. The two return springs (14) are symmetrically sleeved on the circular guide rod (13). The two return springs (14) are respectively set on both sides of the hook frame (2) and the stop rod (4). One end of the return spring (14) abuts against the stop rod (4), and the other end of the return spring (14) abuts against the hook frame (2).

5. The substation primary equipment maintenance anti-falling device fixing frame according to claim 1, characterized in that: The hook frame (2) is slidably connected to the bottom surface of the guide groove (12) by a limiting rod (15). The top end of the limiting rod (15) is inserted into the protrusion (11). The protrusion (11) has an insertion hole (16) that matches the limiting rod (15). The bottom end of the limiting rod (15) passes through the hook frame (2) and is fixedly connected to a pull handle (17). A stop piece (18) is fixedly connected to the limiting rod (15). The hook frame (2) has an active cavity (19) that corresponds to and matches the stop piece (18). The stop piece (18) is slidably connected in the active cavity (19). A spring spring (20) is provided between the bottom surface of the stop piece (18) and the inner wall of the active cavity (19).

6. The substation primary equipment maintenance anti-falling device fixing frame according to claim 1, characterized in that: The top of the hook frame (2) has two symmetrically opened mounting cavities (21), and guide rollers (7) are rotatably installed in each mounting cavity (21).

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