Tightening and rotation stopping tool for integral dropper wire clamp of high-speed rail overhead line system

By designing a tightening and anti-rotation fixture for the overall dropper clamp of the high-speed rail contact network, integrating upper and lower clamping mechanisms, the precise tightening and vertical installation of the dropper clamp are achieved, solving the problems of inconvenient operation and loose bolts in the existing technology.

CN224027536UActive Publication Date: 2026-03-24CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP KANG YUAN NEW MATERIALS CO LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In the existing technology, the tightening operation of the integral dropper clamp is inconvenient and difficult, and the bolts are not tightened securely, making it difficult to ensure that the dropper is installed perpendicular to the direction of travel.

Method used

A high-speed rail catenary overall dropper clamp tightening and anti-rotation fixture was designed, including upper and lower clamping mechanisms integrated at both ends of the handle. The dropper clamp is precisely tightened by flipping and moving the handle, ensuring a firm connection of the bolts.

Benefits of technology

It achieves precise torque control for the overall dropper installation, with the wire clamp and the ferrule tightly connected in a straight line to ensure vertical installation of the dropper, making operation simple and reliable.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224027536U_ABST
    Figure CN224027536U_ABST
Patent Text Reader

Abstract

The utility model provides a tightening and rotation-stopping tool for an integral dropper wire clamp of a high-speed rail overhead line system, which is convenient to operate and ensures that a dropper is vertically mounted relative to the forward direction. The handle is of a long rod structure and comprises two ends in the length direction; an upper clamping mechanism and a lower clamping mechanism; the upper clamping mechanism is arranged at the upper end of the handle in the height direction, the lower clamping mechanism is arranged at the lower end of the handle in the height direction, the first clamping protruding end of the upper clamping mechanism is arranged towards the front end, and the second clamping protruding end of the lower clamping mechanism is arranged towards the rear end. And the clamping bulge ends of the upper clamping mechanism and the lower clamping mechanism are arranged in opposite directions.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrified railway contact net whole pendant assembly, concretely is a high -speed railway contact net whole pendant wire clamp tightening rotation stopping tool. BACKGROUND

[0002] At present, in the high-speed electrified railway contact net, the whole pendant with the flow line made of the corrosion -resistant copper alloy soft copper stranded wire gradually replaces the traditional link pendant, and it has the advantages of high strength mechanical property, good corrosion resistance, long service life, convenient construction and installation.

[0003] The pendant should be perpendicular to the road direction at any temperature. Therefore, the whole pendant installation needs to ensure that the wire clamp is connected with the heart ring straight line, and the bolt is firm, but the existing bolt is inconvenient to operate when tightening, and the whole tightening installation process has high technical requirements and great difficulty, so it is urgent to develop a convenient rotation stopping tool to ensure that the whole pendant wire clamp can be reliably tightened by the bolt. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a high -speed railway contact net whole pendant wire clamp tightening rotation stopping tool, which realizes accurate control of the whole pendant installation torque, the bolt is tightened firmly when the wire clamp is connected with the heart ring straight line, the operation tool is convenient, and the pendant is installed perpendicular to the road direction.

[0005] A high-speed railway contact net whole pendant wire clamp tightening rotation stopping tool, characterized in that it comprises: a handle, which is a long rod structure, comprising two ends in the length direction;

[0006] an upper clamping mechanism,

[0007] and a lower clamping mechanism;

[0008] The upper end of the handle in the height direction is provided with the upper clamping mechanism, the lower end of the handle in the height direction is provided with the lower clamping mechanism, the first clamping protruding end of the upper clamping mechanism is arranged towards the front end, the second clamping protruding end of the lower clamping mechanism is arranged towards the rear end, and the clamping protruding ends of the upper clamping mechanism and the lower clamping mechanism are arranged towards the opposite direction.

[0009] Further characterized in that:

[0010] The upper clamping mechanism comprises a first positioning groove, an upper bolt fixing hole and a first fixing groove.

[0011] The first positioning groove comprises a first horizontal plate, two first lower convexly bent front protruding ends on the two sides, and first inner convex notches respectively arranged on the two first lower convexly bent front protruding ends, and the first positioning groove is used for fixing corresponding positions of a load-bearing cable suspension chord clamp and an upper line nose;

[0012] The upper bolt fixing hole is arranged corresponding to the center position of the first horizontal plate and is shaped according to the outer contour shape of the upper bolt;

[0013] The first fixing groove is a space region formed by two first horizontal front convexly bent structures corresponding to the upper end positions of the handle on the two sides, the two first horizontal front convexly bent structures are respectively protruded towards the front ends, and the first fixing groove is used for fixing the two side edges of the width of the upper chicken ring;

[0014] The first horizontal plate is located above the first fixing groove;

[0015] The lower clamping mechanism comprises a second positioning groove, a lower bolt fixing hole and a second fixing groove;

[0016] The second positioning groove comprises a second horizontal plate, two second lower convexly bent rear protruding ends on the two sides, and second inner concave notches respectively arranged on the two second lower convexly bent rear protruding ends, and the second positioning groove is used for fixing corresponding positions of a contact wire suspension chord clamp and a lower line nose;

[0017] The lower bolt fixing hole is arranged corresponding to the center position of the second horizontal plate and is shaped according to the outer contour shape of the lower bolt;

[0018] The second fixing groove is a space region formed by two second horizontal rear convexly bent structures corresponding to the bottom of the handle, the two second horizontal rear convexly bent structures are respectively protruded towards the rear ends, and the second fixing groove is used for fixing the two side edges of the width of the lower chicken ring;

[0019] The second horizontal plate is located above the second fixing groove.

[0020] After the utility model is adopted, the upper clamping mechanism and the lower clamping mechanism are integrated at the two ends in the height direction of a handle, the upper nut can be reliably tightened through the upper clamping mechanism for fixing corresponding positions of the suspension chord and the load-bearing cable, the lower nut can be reliably tightened through the lower clamping mechanism for fixing corresponding positions of the suspension chord and the contact wire, and when installing and constructing, the tightening and rotation stopping of the suspension chord clamp can be completed by only turning over the upper and lower positions of the handle and translating in the air, the overall suspension installation torque precision control is realized, the bolt is tightly screwed when the line clamp and the chicken ring are fastened in a straight line, the operation tool is convenient, and the suspension is ensured to be installed vertically relative to the straight road direction. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1The utility model discloses a perspective structure schematic diagram;

[0022] Figure 2 The utility model discloses a whole dropper schematic diagram suitable for the electrified railway catenary,

[0023] Figure 3 The utility model discloses the implementation drawing of tightening rotation-stopping,

[0024] The name corresponding to the serial number in the drawing is as follows:

[0025] First positioning groove 1, upper bolt fixing hole 2, first fixed groove 3, handle 4, second positioning groove 5, lower bolt fixing hole 6, second fixed groove 7, load cable dropper line clamp 8, load cable 9, upper bolt 10, upper nut 11, upper heart ring 12, dropper line 13, lower heart ring 14, contact line dropper line clamp 15, lower nut 16, lower bolt 17, contact line 18, upper line nose 19, lower line nose 20, upper clamping mechanism 30, first cross plate 31, first lower convex bending front convex end 32, first inner convex stop 33, first transverse front convex bending structure 34, lower clamping mechanism 40, second cross plate 41, second lower convex bending rear convex end 42, second inner concave stop 43, second transverse rear convex bending structure 44. Specific implementation

[0026] The whole dropper schematic structure in the electrified railway catenary, Figure 2 It includes load cable dropper line clamp 8, load cable 9, upper bolt 10, upper nut 11, upper heart ring 12, dropper line 13, lower heart ring 14, contact line dropper line clamp 15, lower nut 16, lower bolt 17, contact line 18, upper line nose 19, lower line nose 20.

[0027] A high-speed rail catenary whole dropper line clamp tightening rotation-stopping tool, Figure 1 It includes handle 4, upper clamping mechanism 30 and lower clamping mechanism 40; handle 4 is long rod structure, and it includes two ends in length direction; the upper end in height direction of handle 4 is provided with upper clamping mechanism 30, and the lower end in height direction of handle 4 is provided with lower clamping mechanism 40, the first clamping convex end of upper clamping mechanism 30 is arranged towards front end, the second clamping convex end of lower clamping mechanism 40 is arranged towards rear end, and the clamping convex ends of upper clamping mechanism 30 and lower clamping mechanism 40 are arranged towards opposite directions.

[0028] In specific embodiments, upper clamping mechanism 30 includes first positioning groove 1, upper bolt fixing hole 2 and first fixed groove 3;

[0029] The first positioning groove 1 includes a first horizontal plate 31 and two first downward convex bending front convex ends 32 on both sides. The two first downward convex bending front convex ends 32 are also respectively provided with a first inner convex stop 33. The first positioning groove 1 is used to fix the corresponding positions of the load-bearing cable hanger clamp 8 and the upper wire lug 19.

[0030] The upper bolt fixing hole 2 corresponds to the center position of the first horizontal plate 31 and is set in accordance with the outer contour shape of the upper bolt 10;

[0031] The first fixing groove 3 is a spatial area corresponding to the upper position of the handle 4 on both sides forming the first transverse forward convex bending structure 34. The first transverse forward convex bending structure 34 on both sides protrudes towards the front end, and the first fixing groove 3 formed is used to fix the width of the upper heart ring 12 on both sides.

[0032] The first horizontal plate 31 is located above the first fixing groove 3;

[0033] The first downward convex bending front convex end 32 and the first transverse forward convex bending structure 34 are combined to form the first clamping protrusion end;

[0034] The lower clamping mechanism 40 includes a second positioning groove 5, a lower bolt fixing hole 6, and a second fixing groove 7;

[0035] The second positioning groove 5 includes a second horizontal plate 41 and two second lower convex bent protruding ends 42 on both sides. The two second lower convex bent protruding ends 42 are also respectively provided with second concave stop 43. The second positioning groove 5 is used to fix the corresponding positions of the contact wire dropper clamp 15 and the lower wire lug 20.

[0036] The lower bolt fixing hole 6 corresponds to the center position of the second horizontal plate 41 and is set in accordance with the outer contour shape of the lower bolt 17;

[0037] The second fixing groove 7 corresponds to the space area of ​​the bottom of the handle 4 that forms the second transverse rearward bending structure 44. The second transverse rearward bending structures 44 on both sides protrude towards the rear end respectively, and the second fixing groove 7 formed is used to fix the width of the lower heart ring 14 on both sides.

[0038] The second horizontal plate 41 is located above the second fixing groove 7;

[0039] The second lower convex bend rear convex end 42 and the second transverse rear convex bend structure 44 combine to form the second clamping protrusion end.

[0040] In practice, the upper clamping mechanism and the lower clamping mechanism are integrated at both ends of a handle in the height direction, and the upper clamping mechanism is used to lock the corresponding positions of the dropper wire and the catenary wire (see...). Figure 3 This ensures that the upper nut can be reliably tightened, and the lower clamping mechanism corresponds to the locking positions of the dropper wire and contact wire (see...).Figure 3 ), so that the lower nut can be reliably tightened, and during installation construction, only the up-down position of the turning handle and translation are needed to complete the tightening and rotation-stopping of the suspension line clamp, when installing the overall suspension, the rotation-stopping tool for fastening the bearing cable and the rotation-stopping tool for fastening the contact line are designed as a whole, which is convenient for operation during installation construction and does not need to frequently change tools, the upper clamping mechanism or the lower clamping mechanism vertically aligns the bolt, the clamp and the center ring part to cooperate with the vertical alignment of the nut to precisely and automatically tighten, which realizes accurate control of the overall suspension installation torque, the bolt is tightly fastened when the clamp and the center ring are connected in a straight line, which makes the operation tool convenient and ensures that the suspension is installed vertically relative to the straight road direction.

[0041] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims to which they relate.

[0042] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A clamping and anti-rotation fixture for the integral dropper wire clamp of a high-speed railway contact network, characterized in that, It includes: The handle is a long rod structure that includes two ends along its length. Upper clamping mechanism, And the lower clamping mechanism; The upper clamping mechanism is provided at the upper end of the handle in the height direction, and the lower clamping mechanism is provided at the lower end of the handle in the height direction. The first clamping protrusion of the upper clamping mechanism is arranged facing the front end, and the second clamping protrusion of the lower clamping mechanism is arranged facing the rear end. The clamping protrusions of the upper clamping mechanism and the lower clamping mechanism are arranged in opposite directions.

2. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 1, characterized in that: The upper clamping mechanism includes a first positioning groove, an upper bolt fixing hole, and a first fixing groove.

3. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 2, characterized in that: The first positioning groove includes a first horizontal plate and two first downward convex bending front protrusions on both sides. The two first downward convex bending front protrusions are also respectively provided with a first inner convex stop. The first positioning groove is used to fix the corresponding positions of the load-bearing cable hanger clamp and the upper wire lug.

4. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 3, characterized in that: The upper bolt fixing hole corresponds to the center position of the first horizontal plate and is set in accordance with the outer contour shape of the upper bolt.

5. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 4, characterized in that: The first fixing groove is a spatial area corresponding to the upper position of the handle, on both sides forming a first transverse forward convex bending structure. The first transverse forward convex bending structure on both sides protrudes towards the front end, and the first fixing groove formed is used to fix the width of the upper heart ring on both sides.

6. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 5, characterized in that: The first horizontal plate is located above the first fixing groove.

7. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 1, characterized in that: The lower clamping mechanism includes a second positioning groove, a lower bolt fixing hole, and a second fixing groove.

8. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 7, characterized in that: The second positioning groove includes a second horizontal plate and two second downward convex bent protrusions on both sides. The two second downward convex bent protrusions are also respectively provided with second concave stop. The second positioning groove is used to fix the corresponding positions of the contact wire dropper clamp and the lower wire lug.

9. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 8, characterized in that: The lower bolt fixing hole corresponds to the center position of the second horizontal plate and is set in accordance with the outer contour shape of the lower bolt.

10. The anti-rotation fixture for tightening the integral dropper wire clamp of a high-speed railway contact network according to claim 9, characterized in that: The second fixing groove corresponds to the space area of ​​the bottom of the handle that protrudes downward to form the second lateral rearward bending structure. The second lateral rearward bending structures on both sides protrude towards the rear end respectively, and the second fixing groove formed is used to fix the width of the lower heart ring on both sides. The second horizontal plate is located above the second fixing groove.