Mechanical locking device for a mobile suspended power supply device

By designing a mechanical locking device, the problems of poor contact and lateral tension on mobile hoisting tracks with small-radius turning angles were solved, thus achieving stable movement and improved safety of the suspended power supply device.

CN224467393UActive Publication Date: 2026-07-07CCCC FIRST HARBOR ENGINEERING CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC FIRST HARBOR ENGINEERING CO LTD
Filing Date
2025-06-18
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

On existing mobile hoisting tracks with small-radius turns and multiple-radius connections, the sliding wire power supply device suffers from poor contact and increased mechanical stress, posing a safety hazard. Meanwhile, ordinary suspended pulley power supply devices are easily damaged by lateral tension.

Method used

Design a mechanical locking device, including a protruding locking block, a locking plate, a locking spring, and an unlocking device, to ensure stable movement of the suspended power supply device on a curved track through step-by-step locking and unlocking, reducing poor contact and lateral tension.

Benefits of technology

It improves the reliability and safety of the equipment, extends the service life of the suspended power supply device, and reduces the possibility of electrical sparks and mechanical damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a mechanical lock fixing device of mobile suspension power supply device, including suspension rail, overhead rail walking device, walking overhead load device, bearing overhead load device, suspension power supply device, overhead rail walking device walks along suspension rail, walking overhead load device is fixedly connected in overhead rail walking device bottom, bearing overhead load device is fixedly connected in walking overhead load device bottom, suspension power supply device is suspended in bearing overhead load device, and the middle part of walking overhead load device one side is equipped with the front convex lock fixed plug, and one pair of lock fixed clamping plates are rotatably connected to the top and bottom of the other side, and one pair of lock fixed clamping plates are equipped with lock spring in the one end close to walking overhead load device opposite surface connection, and the adjacent two walking overhead load devices walk on suspension rail, and the front convex lock fixed plug on the rear walking overhead load device is inserted into one pair of lock fixed clamping plates on the front walking overhead load device, and one pair of lock fixed clamping plates are equipped with unlocking device. The utility model discloses simple structure, safe and reliable, and high universality.
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Description

Technical Field

[0001] This utility model relates to the field of mobile track hoisting technology, and in particular to a mechanical locking device for a mobile suspended power supply device. Background Technology

[0002] With social progress and increased awareness of safety and environmental protection, mobile rail-mounted hoisting devices are constantly being updated and iterated, and their power supply methods have also changed. Currently, mobile hoisting rail traction tracks are divided into two types: first, straight wheel mobile hoisting tracks; second, curved wheel mobile hoisting tracks. These two types of mobile hoisting tracks use either a sliding-line rail power supply device or a conventional suspension pulley mobile hoisting suspension power supply device. However, in special environments, both sliding-line rail power supply devices and conventional suspension pulley mobile hoisting suspension power supply devices have certain drawbacks. For example, in explosion-proof areas, for tracks with small curvature angles and multiple curvature connections, the contact state between the brushes and guide rails of the sliding-line rail power supply device is easily unstable due to track curvature, leading to poor contact and increased mechanical stress, which can easily generate electrical sparks and pose a safety hazard. On the other hand, with conventional suspension pulley mobile hoisting suspension power supply devices, on tracks with small curvature angles and multiple curvature connections, the suspension pulleys are prone to lateral tension, which can easily damage the pulley power supply device. Summary of the Invention

[0003] This utility model aims to address the shortcomings of existing technologies by providing a mechanical locking device for a mobile suspended power supply device.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a mechanical locking device for a mobile suspended power supply device, comprising a suspension track, a suspension track traveling device, a traveling hoisting device, a hoisting support device, and a suspended power supply device. The suspension track traveling device travels along the suspension track, the traveling hoisting device is fixedly connected to the bottom of the suspension track traveling device, the hoisting support device is fixedly connected to the bottom of the traveling hoisting device, and the suspended power supply device is suspended on the hoisting support device. A forward-protruding locking block is installed in the middle of one side of the traveling hoisting device, and a pair of locking plates are rotatably connected to the top and bottom of the other side. A locking spring is connected to the opposite side of the pair of locking plates near the end of the traveling hoisting device. For two adjacent traveling hoisting devices traveling on the suspension track, the forward-protruding locking block on the rear traveling hoisting device is inserted into the pair of locking plates on the front traveling hoisting device. An unlocking device is provided in the pair of locking plates.

[0005] Specifically, the forward-protruding locking block includes a crossbar and a protruding locking block. The crossbar is fixed to one side of the traveling hoisting device, and the protruding locking block is fixed to the end of the crossbar away from the traveling hoisting device.

[0006] Specifically, the convex locking block is a horizontal frustum shape, and the opposite side of the locking plate away from the traveling hoisting device is provided with a guide limiting block that matches the convex locking block.

[0007] Specifically, the unlocking device includes an unlocking cam, a rotating shaft, a mounting plate, an unlocking pull block, and an unlocking pull rope. A pair of mounting plates are installed at the front and rear ends of the middle of one side of the traveling hoisting device, and a locking spring is located between the pair of mounting plates. The rotating shaft is rotatably connected to the opposite side of the pair of mounting plates away from the locking spring. The unlocking cam is centrally mounted on the rotating shaft, the unlocking pull block is fixed to the upper part of the mounting boss of the unlocking cam, and the unlocking pull rope is fixed to the unlocking pull block.

[0008] The beneficial effects of this utility model are as follows: By incorporating a protruding locking block, locking plate, locking spring, and unlocking device, this utility model ensures that the ordinary suspended pulley mobile hoisting power supply device can be locked and unlocked step-by-step on tracks with small arc angles and multiple arc connections. It allows for synchronous movement and smooth passage through curved track sections, ensuring that the suspended power supply device is not subjected to strain or twisting due to tension when moving on curved tracks, thereby extending the service life of the suspended power supply device and improving the reliability and safety of the equipment. Simultaneously, for sliding rail power supply devices, the installation of the locking device ensures synchronous movement on the track, reducing lateral tension and mechanical stress caused by track curvature, thus reducing the possibility of poor contact and safety hazards. This utility model reduces the possibility of electrical sparks generated by sliding rail power supply devices and reduces lateral tension damage when using ordinary suspended pulley power supply devices in complex track environments, improving safety and economic efficiency. Attached Figure Description

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

[0010] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0011] Figure 3 This is a schematic diagram of the locking state of the protruding locking block and locking plate of this utility model;

[0012] Figure 4 This is a schematic diagram showing the unlocked state of the protruding locking block and locking plate of this utility model;

[0013] In the diagram: 1-Suspension rail; 2-Suspension rail traveling device; 3-Traveling lifting device; 4-Lifting device; 5-Suspension power supply device; 6-Protruding locking block; 601-Crossbar; 602-Protruding locking block; 7-Locking plate; 701-Guide limit block; 8-Locking spring; 9-Unlocking device; 901-Unlocking cam; 902-Rotating shaft; 903-Mounting plate; 904-Unlocking pull block; 905-Unlocking pull rope;

[0014] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] like Figures 1-4 As shown, a mechanical locking device for a mobile suspended power supply device includes a suspension rail 1, a rail traveling device 2, a traveling hoisting device 3, a hoisting support device 4, and a suspended power supply device 5. The rail traveling device 2 travels along the suspension rail 1, the traveling hoisting device 3 is fixed to the bottom of the rail traveling device 2, the hoisting support device 4 is fixed to the bottom of the traveling hoisting device 3, and the suspended power supply device 5 is suspended on the hoisting support device 4. The suspended power supply device 5 is the main power supply device that needs to be suspended in the mobile suspension, and the power supply device suspended therein is not limited to any model, specification, or type, such as cables of different specifications. The suspension rail 1, as the suspended mobile load-bearing device, is not limited to any structural type and can be one of the following: an I-beam structure, an H-beam structure, a C-type trough structure, or another.

[0017] A forward-protruding locking block 6 is installed in the middle of one side of the traveling hoisting device 3, and a pair of locking plates 7 are rotatably connected to the top and bottom of the other side. A locking spring 8 is connected to the opposite side of the pair of locking plates 7 near the end of the traveling hoisting device 3. The forward-protruding locking block 6 on the rear traveling hoisting device 3 is inserted into the pair of locking plates 7 on the front traveling hoisting device 3. The forward-protruding locking block 6 includes a crossbar 601 and a convex locking block 602. The crossbar 601 is fixed to one side of the traveling hoisting device 3, and the convex locking block 602 is fixed to the end of the crossbar 601 away from the traveling hoisting device 3. The convex locking block 602 is a horizontal frustum shape. A guide limit block 701 matching the convex locking block 602 is provided at the opposite side of the locking plates 7 away from the traveling hoisting device 3. The convex locking block 602 of the forward-protruding locking block 6 is not limited to a specific structural type and can also be cylindrical or conical. The locking spring 8 serves as the main torque of the locking device. It can be any structure, such as a cylindrical helical tension spring, a leaf spring, or other structures, and can be used as a locking torque mechanism.

[0018] A pair of locking plates 7 are equipped with an unlocking device 9. The unlocking device 9 includes an unlocking cam 901, a rotating shaft 902, a mounting plate 903, an unlocking pull block 904, and an unlocking pull rope 905. The pair of mounting plates 903 are installed at the front and rear ends of the middle of one side of the traveling hoisting device 3, and the locking spring 8 is located between the pair of mounting plates 903. The rotating shaft 902 is rotatably connected to the end of the pair of mounting plates 903 away from the locking spring 8. The unlocking cam 901 is centrally mounted on the rotating shaft 902. The unlocking pull block 904 is fixedly mounted on the upper part of the mounting boss of the unlocking cam 901. The unlocking pull rope 905 is fixedly mounted on the unlocking pull block 904.

[0019] This invention ensures that ordinary suspended pulley mobile hoisting power supply devices can be locked and unlocked step by step on tracks with small arc angles and multiple arc connections, enabling synchronous movement and smooth passage through arc-shaped track sections. It also ensures that the suspended power supply device 5 will not be subjected to strain or twisting due to tension when moving on curved tracks, thereby extending the service life of the suspended power supply device and improving the reliability and safety of the equipment. Simultaneously, for sliding rail power supply devices, the installation of locking devices ensures synchronous movement on the track, reducing lateral tension and mechanical stress caused by track curvature, thus reducing the possibility of poor contact and lowering safety hazards.

[0020] Working principle of this utility model:

[0021] Locking Control: After the installation of the arbitrary mobile rail hoisting bearing device is completed, the mechanical locking device of the traction suspension power supply device 5 will also be installed on the corresponding traveling hoisting device 3 as needed. The required suspension power supply device 5 will be installed on the traction sliding cable bearing device 4. When the hoisting rail traveling device 2 moves in the power supply direction, the mechanical locking device of the traction suspension power supply device 5 will gradually move closer to the hoisting rail traveling device 2. At this time, the forward protruding locking block 6 will gradually approach the locking plate 7 of the mechanical locking device of the next traction suspension power supply device 5 due to the movement. Since the inclined surface of the protruding locking block 602 of the previous forward protruding locking block 6 and the inclined surface of the guide limiting block 701 of the next locking plate 7 are in the same direction and at the same angle, it is easy to enter the locking plate 7. At this time, under the action of the locking spring 8, the previous traveling hoisting device 3 and the next traveling hoisting device 3 are locked by the locking device. This action is repeated, and the following will occur: Figure 3 The effect is that both the front and back are locked in place; at this time, it can move synchronously across the curved track.

[0022] Unlocking control: When the lifting device 3 is locked together and no movement is required, pull the unlocking rope 905. The unlocking cam 901 rotates, opening the two locking plates 7. Figure 4 As shown, when the overhead rail traveling device 2 moves in the opposite direction of power supply, the protruding locking block 6 can be disengaged from the locking plate 7. The unlocking rope is then released, and the locking plate 7 is reset under the action of the locking spring 8.

[0023] This invention reduces the possibility of electrical sparks generated by the sliding rail power supply device and also reduces lateral tension damage when using ordinary suspension pulley power supply devices in complex track environments, thereby improving safety and economic efficiency.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A mechanical locking device for a mobile suspended power supply device, comprising a suspension track (1), a track traveling device (2), a traveling hoisting device (3), a hoisting support device (4), and a suspended power supply device (5), wherein the track traveling device (2) travels along the suspension track (1), the traveling hoisting device (3) is fixedly connected to the bottom of the track traveling device (2), the hoisting support device (4) is fixedly connected to the bottom of the traveling hoisting device (3), and the suspended power supply device (5) is suspended on the hoisting support device (4), characterized in that, A forward-protruding locking block (6) is installed in the middle of one side of the traveling hoisting device (3), and a pair of locking plates (7) are rotatably connected to the top and bottom of the other side. A locking spring (8) is connected to the opposite side of the pair of locking plates (7) near the end of the traveling hoisting device (3). The forward-protruding locking block (6) on the rear traveling hoisting device (3) is inserted into the pair of locking plates (7) on the front traveling hoisting device (3) of the two adjacent traveling hoisting devices (3) traveling on the suspension track (1). An unlocking device (9) is provided in the pair of locking plates (7).

2. The mechanical locking device for a mobile suspended power supply device according to claim 1, characterized in that, The forward-protruding locking block (6) includes a crossbar (601) and a protruding locking block (602). The crossbar (601) is fixed to one side of the traveling hoisting device (3), and the protruding locking block (602) is fixed to the end of the crossbar (601) away from the traveling hoisting device (3).

3. The mechanical locking device for a mobile suspended power supply device according to claim 2, characterized in that, The convex locking block (602) is a horizontal frustum shape, and the opposite side of the locking plate (7) away from the traveling hoisting device (3) is provided with a guide limiting block (701) that matches the convex locking block (602).

4. The mechanical locking device for a mobile suspended power supply device according to claim 1, characterized in that, The unlocking device (9) includes an unlocking cam (901), a rotating shaft (902), a mounting plate (903), an unlocking pull block (904), and an unlocking pull rope (905). A pair of mounting plates (903) are installed on the front and rear ends of the middle side of the traveling hoisting device (3), and the locking spring (8) is located between the pair of mounting plates (903). The rotating shaft (902) is rotatably connected to the opposite side of the pair of mounting plates (903) away from the locking spring (8). The center of the unlocking cam (901) is fixedly mounted on the rotating shaft (902). The unlocking pull block (904) is fixedly mounted on the upper part of the mounting boss of the unlocking cam (901). The unlocking pull rope (905) is fixedly mounted on the unlocking pull block (904).