Anti-breaking isolation device for rigid body slide contact line sectional connection port

By using a combination of insulating posts, internal threaded sleeves, and L-shaped plates at the segmented connection points of the rigid conductor rail, the problem of conductor rail breakage caused by thermal expansion and contraction of the steel structure was solved, achieving stable isolation effect and high connection strength.

CN224298746UActive Publication Date: 2026-05-29SHANDONG IRON & STEEL GRP YONGFENG LINGANG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG IRON & STEEL GRP YONGFENG LINGANG CO LTD
Filing Date
2025-08-12
Publication Date
2026-05-29

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Abstract

The utility model belongs to rigid body slide contact line technical field especially relates to a kind of anti-fracture isolation device of rigid body slide contact line sectional connection mouth. Including insulating column, and the inner thread sleeve pipe is embedded in the both ends of insulating column, and the support screw rod is connected with the inner thread of inner thread sleeve pipe, and the L-shaped plate is connected with the one end of support screw rod, and the fixed nut is connected with the support screw rod on the both sides of L-shaped plate, and the bolt pair is bolted on L-shaped plate. When steel structure occurs thermal expansion and cold shrinkage, rigid body slide contact line also deforms along with it, the utility model can prevent two rigid body slide contact lines from approaching each other or stretching excessively, and prevent wooden insulating pad from being damaged, so that it still plays the role of isolation.
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Description

Technical Field

[0001] This utility model belongs to the field of rigid conductor rail technology, and in particular relates to a breakage prevention isolation device for the segmented connection joint of a rigid conductor rail. Background Technology

[0002] Overhead cranes in steel plants are crucial lifting and transport equipment, powered by rigid conductor rails. These rigid conductor rails are typically installed on steel structures. However, due to the thermal expansion and contraction of steel structures, expansion joints are usually designed into the steel structure. The rigid conductor rails are typically equipped with segmented isolation devices for power outages and maintenance, each segment having its own distribution cabinet. Adjacent segments are usually isolated using wooden blocks. When the steel structure expands or contracts due to temperature changes, the rigid conductor rails installed on the structure also shift, causing the wooden blocks between adjacent segments to be crushed and damaged, losing their isolation function, or even leading to contact and breakage between the two segments. Summary of the Invention

[0003] The purpose of this invention is to provide a breakage prevention isolation device for the segmented connection port of a rigid sliding contact line, so as to solve the problems existing in the prior art.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A fracture-prevention isolation device for segmented connection joints of a rigid sliding contact line includes an insulating column, both ends of which are fitted with internal threaded sleeves. Supporting screws are threaded into the internal threads of the internal threaded sleeves. An L-shaped plate is threaded through one end of the supporting screw. Fixing nuts are threaded onto the supporting screws on both sides of the L-shaped plate. Bolt pairs are bolted to the L-shaped plate.

[0006] Furthermore, the insulating posts are made of unsaturated resin.

[0007] Furthermore, the internal threaded sleeve is round, the inner wall of the internal threaded sleeve is internally threaded, and several protrusions are welded on the outer wall of the internal threaded sleeve.

[0008] Furthermore, the L-shaped plate is L-shaped in general, with two L-shaped plates arranged opposite each other. The support screws are respectively connected to the vertical surfaces of the two L-shaped plates, and there are four bolt pairs. Two bolt pairs are symmetrically bolted to the two L-shaped plates respectively.

[0009] This utility model has the following beneficial effects:

[0010] 1. When the steel structure undergoes thermal expansion and contraction, the rigid sliding contact line also deforms. This utility model can prevent the two sections of the rigid sliding contact line from getting close to each other or being stretched excessively, and prevent damage to the wooden insulating pad, so that it can still play an isolation role.

[0011] 2. This utility model has a simple structure and excellent isolation effect.

[0012] 3. The protrusions can strengthen the connection between the inner threaded sleeve and the insulating post. Attached Figure Description

[0013] Figure 1 This is a side view structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 3 This is a schematic diagram of the insulating column structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the internal wire sleeve structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of this utility model after it is installed on a rigid sliding contact line.

[0018] The components include: 1. Insulating post; 2. Internal threaded sleeve; 3. Supporting screw; 4. L-shaped plate; 5. Fixing nut; 6. Bolt pair; 7. Protrusion. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0020] like Figure 1-5 As shown, a fracture prevention isolation device for the segmented connection of a rigid sliding contact line includes an insulating column 1. Both ends of the insulating column 1 are fitted with internal threaded sleeves 2. The internal threaded sleeves 2 are internally threaded with support screws 3. One end of the support screws 3 is threaded with an L-shaped plate 4. Fixing nuts 5 are threaded on the support screws 3 on both sides of the L-shaped plate 4. Bolt pairs 6 are bolted to the L-shaped plate 4.

[0021] The insulating post 1 is made of unsaturated resin. The insulating post 1 can be made by casting. After the template is made, unsaturated resin is poured into it, and the inner threaded sleeve 2 is placed at both ends of the insulating post 1. After the unsaturated resin solidifies, the inner threaded sleeve 2 is fitted into both ends of the insulating post 1 under the action of the protrusions 7.

[0022] The internal threaded sleeve 2 is a round tube, the inner wall of the internal threaded sleeve 2 is internally threaded, and several protrusions 7 are welded on the outer wall of the internal threaded sleeve 2.

[0023] The L-shaped plate 4 is L-shaped in general. Two L-shaped plates 4 are set opposite each other. The support screws 3 are respectively connected to the vertical surfaces of the two L-shaped plates 4. There are four bolt pairs 6. Two bolt pairs 6 are symmetrically bolted to the two L-shaped plates 4 respectively.

[0024] The working principle of this utility model is as follows: In use, the two L-shaped plates 4 are bolted to the bottom end of the segmented connection of the rigid sliding contact line using bolt pairs 6. One L-shaped plate 4 corresponds to one segment of the rigid sliding contact line. The support screw 3 is then threaded through the L-shaped plate 4 and connected to the inner threaded sleeve 2, and the fixing nuts 5 on both sides of the L-shaped plate 4 are tightened. When the steel structure undergoes thermal expansion and contraction, the rigid sliding contact line also deforms. This utility model can prevent the two segments of the rigid sliding contact line from getting too close to each other or from being excessively stretched, and prevent damage to the wooden insulating pad, allowing it to continue to function as an insulator.

[0025] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0026] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A breakage-prevention isolation device for segmented connection joints of a rigid sliding contact line, characterized in that, The device includes an insulating column, both ends of which are fitted with internal threaded sleeves. The internal threaded sleeves are connected to supporting screws. One end of the supporting screw is connected to an L-shaped plate. The supporting screws on both sides of the L-shaped plate are connected to fixing nuts. Bolt pairs are bolted to the L-shaped plate.

2. The anti-breakage isolation device for the segmented connection of a rigid sliding contact line according to claim 1, characterized in that, The insulating post is made of unsaturated resin.

3. The anti-breakage isolation device for the segmented connection of a rigid sliding contact line according to claim 1, characterized in that, The inner threaded sleeve is cylindrical, with an inner threaded inner wall and several protrusions welded onto the outer wall.

4. The anti-breakage isolation device for the segmented connection of a rigid sliding contact line according to claim 1, characterized in that, The L-shaped plate is L-shaped in general, with two L-shaped plates arranged opposite each other. Support screws are respectively threaded through the vertical surfaces of the two L-shaped plates. There are four bolt pairs, with two bolt pairs symmetrically bolted to each of the two L-shaped plates.