Rapid connection auxiliary tool for broken line of overhead line system

Abstract

The utility model provides a contact network broken line rapid connection auxiliary tool, comprising two positioning wire clamps, each of which comprises a front panel, a rear panel and a locking structure, a wire groove being formed between the front panel and the rear panel, and a twisting shaft being arranged at the top of the positioning wire clamp; the number of the mating parts is two, each mating part comprises a connecting end and a butt joint shaft horizontally extending along the bottom of the connecting end, and the connecting ends are integrally locked to the positioning wire clamp through a locking structure and enable the butt joint shafts and the wire grooves to be distributed in parallel; the sleeve part is provided with two inserting ends symmetrically distributed along a straight line, and the two inserting ends are symmetrically provided with inserting grooves matched with the butt joint shaft in an inserting mode; the surface twisting wrench comprises a handle end and an output end, and the output end is provided with an output groove which can be matched with the twisting shaft in a transmission mode to achieve rotation of the twisting shaft. And high efficiency, low cost and easy operability of contact line disconnection connection operation are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary tools for overhauling a contact network, in particular to an auxiliary tool for quickly connecting a broken contact network line. Background Art

[0002] In modern railway transportation systems, contact wires are key components for obtaining electrical energy for electric locomotives and EMUs, and their stability and reliability are crucial. The high-speed sliding contact between the pantograph and the contact wire ensures the continuous power supply of the train. However, in actual operation, the contact wire may suffer local damage, wear and tear, or even breakage. These conditions require maintenance personnel to quickly and accurately repair the damaged area. The usual practice is to cut off the damaged part and connect the remaining two ends with a joint clamp.

[0003] However, this repair process faces significant technical challenges. When the contact wire loses its original tension, its inherent elasticity will cause the wire to return to its original curved shape. In addition, the contact wire itself has high rigidity, which makes it difficult for the two sections of contact wire to be connected to remain stable. Especially when installing the joint clamp, the offset of the wire body may cause the grooves on both sides to be unable to align accurately. The design of the joint clamp requires that it be accurately embedded in the narrow grooves on both sides of the contact wire, and at the same time, the gap between the two wire ends must be strictly controlled to not exceed 1 mm. Any slight operational error may cause the joint clamp to fail to install, or even cause it to run out of the groove or fall out of the groove, seriously affecting the efficiency and safety of the repair.

[0004] In response to the above problems, the prior art has explored some solutions, such as designing special broken wire splicing tools to assist in repair work. Although these special tools can improve the efficiency and accuracy of repair work to a certain extent, they often require special customization of each component, which not only increases the cost, but also has limited effect on saving operation training and usage time due to its complexity. Therefore, there is an urgent need for a more efficient, economical and easy-to-operate contact wire splicing tool to improve the maintenance efficiency and operation safety of the railway system.

[0005] In view of this, the inventor specially designed an auxiliary tool for quick connection of broken contact wires, and this case was thus generated. Utility Model Content

[0006] In order to solve the above problems, the technical solution of the utility model is as follows:

[0007] A contact network disconnection quick connection auxiliary tool, comprising:

[0008] Two positioning wire clamps are provided, each of which includes a front panel, a rear panel, and a locking structure for locking the front panel and the rear panel. A wire groove for clamping the contact wire is formed between the front panel and the rear panel and at the bottom of the positioning wire clamp. A rotatable torsion shaft for twisting the contact wire is provided at the top of the positioning wire clamp and between the front panel and the rear panel;

[0009] The mating parts are provided with two and each of them includes a connecting end and a docking shaft extending horizontally along the bottom of the connecting end, wherein the connecting end is integrally locked to the positioning wire clamp through a locking structure and the docking shaft and the wire groove are kept in parallel distribution;

[0010] The sleeve part has two plug-in ends symmetrically distributed along a straight line, and the two plug-in ends are symmetrically provided with slots for plugging and matching with the docking shaft;

[0011] The torque wrench comprises a handle end and an output end, wherein the output end has an output slot which can be matched with a torsion shaft to realize the rotation of the torsion shaft.

[0012] Preferably, the locking structure is a bolt and a nut, and locking holes are symmetrically provided on both sides of the front panel and both sides of the rear panel. The bolt passes through the two locking holes at the same position on the front panel and the rear panel in sequence and is locked with the nut.

[0013] Preferably, the connecting end is a flat connecting plate, the center of the top of which is concave to form a clearance groove opposite to the covering position of the torsion shaft, and the connecting plate is symmetrically located on both sides of the clearance groove to form connecting holes opposite to the locking hole position, and the bolt passes through the two locking holes and the connecting hole to cooperate with the nut to fix the connecting end to the positioning wire clamp.

[0014] Preferably, the docking axis is welded and fixed to the bottom of the connecting plate and remains parallel to the plane where the connecting plate is located. The docking axis extends horizontally along one side of the bottom of the connecting plate, and the docking axes on the two connecting plates extend symmetrically.

[0015] Preferably, the docking shaft is in the shape of a rod with a regular N-gonal cross section, and the cross section of the slot is adapted to the shape of the docking shaft, wherein N=4, 5, 6, 8.

[0016] Preferably, the docking shaft is in the shape of a rod with a regular hexagonal cross section, and the cross section of the slot is in the shape of a regular hexagon that matches the shape of the docking shaft.

[0017] Preferably, the sleeve member comprises two symmetrically distributed hexagonal sleeves, the two hexagonal sleeves are symmetrically welded and fixed along a straight line and their opening directions are opposite.

[0018] Preferably, the handle end and the output end of the torque wrench are integrally bent, and the bending angle is 110°-120°.

[0019] Preferably, a positioning groove is provided on the peripheral side wall surface of the torsion shaft, and a positioning block which cooperates with the positioning groove to limit the position is provided in the output groove.

[0020] Preferably, the positioning block is columnar.

[0021] The beneficial effects of the utility model are as follows:

[0022] The utility model provides an auxiliary tool for quickly connecting broken contact lines. By selecting and modifying common and easily available parts such as old positioning wire clamps, old positioners, angle steels and hexagonal sleeves, a more convenient set of auxiliary tools is formed. The difficulties of low efficiency, high cost and complicated operation faced by contact line connection operations in the prior art are overcome, and the safety and convenience of contact line maintenance operations are significantly improved.

[0023] Specifically, the positioning wire clamp clamps the contact wire through the front panel and the rear panel, and the built-in torsion shaft can adjust the position of the contact wire to ensure the precise alignment of the contact wires on both sides; the mating part is locked and connected to the positioning wire clamp through the connecting end, and the docking shaft at its bottom is plugged into the slot of the sleeve part to form a stable support structure to effectively control the deviation of the contact wire; the double plug-in end design of the sleeve part facilitates the rapid insertion and positioning of the docking shaft, improving the flexibility and efficiency of the operation; the torque wrench realizes the precise rotation of the torsion shaft through the transmission cooperation with the torsion shaft at the output end, ensuring the accurate positioning of the contact wire.

[0024] Among them, the locking structure adopts bolts and nuts, which not only ensures the stability of the connection, but also simplifies the assembly process; the give way groove design at the connection end avoids interference with the torsion shaft, and the precise matching of the connecting hole and the locking hole ensures the accuracy of the connection; the shape of the docking shaft and the slot is adapted, especially the docking shaft with a regular hexagonal cross-section, which further enhances the stability of the connection; the hexagonal sleeve structure of the sleeve not only provides sufficient strength, but also facilitates quick connection with the docking shaft; the bending design between the handle end and the output end of the torque wrench, combined with the limiting cooperation of the positioning block and the positioning groove, improves the comfort and accuracy of operation.

[0025] In summary, the contact line broken line quick connection auxiliary tool of the utility model achieves high efficiency, low cost and easy operability of the contact line broken line connection operation through innovative structural design and component optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0027] in:

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0029] Figure 2 It is a top view structural diagram of the positioning wire clamp and the matching piece in the utility model;

[0030] Figure 3 It is a front view structural diagram of the positioning wire clamp and the matching piece in the utility model;

[0031] Figure 4 It is a side view structural schematic diagram of the sleeve member in the utility model;

[0032] Figure 5 It is a partial cross-sectional structural schematic diagram of the sleeve member and the docking shaft in the utility model;

[0033] Figure 6 It is a schematic diagram of the use state change of the utility model.

[0034] Description of labels:

[0035] 10. Positioning wire clamp; 11. Front panel; 12. Rear panel; 13. Locking structure; 131. Bolt; 132. Nut; 14. Torsion shaft; 141. Positioning groove; 20. Matching piece; 21. Connecting end; 211. Give way groove; 22. Docking shaft; 30. Sleeve piece; 31. Plug end; 32. Slot; 40. Torsion wrench; 41. Handle end; 42. Output end; 421. Positioning block. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] See also Figures 1 to 6 , is a contact network disconnection quick connection auxiliary tool as the best embodiment of the utility model, comprising:

[0038] The positioning wire clamp 10 is provided with two and each includes a front panel 11, a rear panel 12 and a locking structure 13 for locking the front panel 11 and the rear panel 12. A wire groove (not shown in the figure) for clamping the contact wire is formed between the front panel 11 and the rear panel 12 and at the bottom of the positioning wire clamp 10. A torsion shaft 14 that can rotate and is used to twist the contact wire is provided at the top of the positioning wire clamp 10 and between the front panel 11 and the rear panel 12.

[0039] The mating piece 20 is provided with two and each includes a connecting end 21 and a rod-shaped docking shaft 22 welded and fixed to the bottom of the connecting end 21 and extending horizontally along the bottom of the connecting end 21. The connecting end 21 is integrally locked to the positioning wire clamp 10 through the locking structure 13 so that the docking shaft 22 and the wire groove are kept parallel to each other.

[0040] The sleeve member 30 has two plug-in ends 31 symmetrically distributed along a straight line, and the two plug-in ends 31 are symmetrically provided with slots 32 for plugging and matching with the docking shaft 22;

[0041] The torque wrench 40 includes a handle end 41 and an output end 42 . The output end 42 has an output slot (not shown) that can cooperate with the torsion shaft 14 to realize the rotation of the torsion shaft 14 .

[0042] Among them, the selection of the positioning wire clamp 10 uses the waste positioning wire clamp 10. The positioning wire clamp 10 is a common waste material in the work area, which is easy to obtain and can meet the use requirements. As an alternative solution, the production of the fixing fixture still has the problems of great processing difficulty, time-consuming and labor-intensive;

[0043] In addition, the selection of the twist wrench 40 is to transform the waste positioner end head, which is also a common waste material in the work area, and is easy to obtain and process. As an alternative, the matching twist wrench 40 still has the problems of difficult processing, time-consuming and labor-intensive.

[0044] In addition, the selection of the matching piece 20, which is modified by angle steel, is easy to weld and has sufficient strength. As an alternative, the use of aluminum alloy for modification has the problem of being difficult to weld and insufficient strength;

[0045] In addition, the selection of the sleeve, which is fixed by welding through a common hexagonal sleeve, has a simple structure, high strength and can meet the use requirements. As an alternative, the use of a ratchet sleeve for modification can also meet the use requirements, but there are still problems such as complex structure, low strength and easy damage.

[0046] Preferably, Figure 1 , 2 As shown, the locking structure 13 is a bolt 131 and a nut 132. Locking holes (not marked in the figure) are symmetrically arranged on both sides of the front panel 11 and both sides of the rear panel 12. The bolt 131 passes through the two locking holes at the same position on the front panel 11 and the rear panel 12 in turn and is locked and connected with the nut 132.

[0047] Preferably, Figure 2 , 3As shown, the connecting end 21 is a flat connecting plate, the center of the top of which is concave to form a clearance groove 211 opposite to the covering position of the torsion shaft 14, and the connecting plate is symmetrically located on both sides of the clearance groove 211 to form connecting holes (not marked in the figure) opposite to the position of the locking hole. The bolt 131 passes through the two locking holes and the connecting hole to cooperate with the nut 132 to fix the connecting end 21 to the positioning wire clamp 10. Therefore, by opening the connecting hole, the connection and fixation between the connecting plate and the positioning wire clamp 10 can be easily achieved, and the connection between the various parts can be achieved in a simple way with sufficient strength.

[0048] Preferably, Figure 1 , 3 As shown, the docking shaft 22 is welded and fixed to the bottom of the connecting plate and remains parallel to the plane where the connecting plate is located. The docking shaft 22 extends horizontally along one side of the bottom of the connecting plate, and the docking shafts 22 on the two connecting plates are symmetrically extended and distributed. Therefore, when the two positioning wire clamps 10 are clamped and fixed to the edge of the broken contact line, the docking shafts 22 on the positioning wire clamps 10 on both sides face each other in a direction close to each other and are positioned at a position flush with the end of the contact line. When the two docking shafts 22 are aligned, they are inserted into the sleeve member 30, and the alignment of the ends of the contact lines can be achieved simultaneously, which is convenient for subsequent fixation using a special broken wire joint clamp.

[0049] Preferably, Figure 3 , 4 As shown in Figures 5 and 6, the docking shaft 22 is a rod-shaped cross-section with a regular N-gon, and the cross-section of the slot 32 is adapted to the shape of the docking shaft 22, wherein N=4, 5, 6, 8. In this embodiment, the docking shaft 22 is a rod-shaped cross-section with a regular hexagon, and the cross-section of the slot 32 is a regular hexagon adapted to the shape of the docking shaft 22. The sleeve member 30 is two symmetrically distributed hexagonal sleeves, which are symmetrically welded and fixed along a straight line and have opposite opening directions. Thus, the sleeve member 30 is formed by combining the conveniently obtained hexagonal sleeves, thereby facilitating the positioning of the two docking shafts 22 to connect them into a whole, positioning the broken contact lines on both sides, and facilitating the subsequent fixing with a dedicated wire break connector clamp.

[0050] Preferably, Figure 1 As shown, the handle end 41 and the output end 42 of the torque wrench 40 are integrally bent, and the bending angle is 110°-120°, 120° in the present embodiment, and a positioning groove 141 is provided on the peripheral wall surface of the torsion shaft 14, and a positioning block 421 which cooperates with the positioning groove 141 is provided in the output groove, and the positioning block 421 is columnar, so that the torque wrench 40 can conveniently rotate the torsion shaft 14 through the limiting cooperation between the positioning groove 141 and the positioning block 421, thereby facilitating the twisting of the contact line.

[0051] The working process and beneficial effects of the utility model are as follows:

[0052] Workflow:

[0053] 1. Assemble the positioning wire clamp 10 and the matching piece 20 together, one set on each side of the broken contact wire;

[0054] 2. Install and fix the positioning wire clamps 10 on both sides on the broken wire contact wires, 200mm-300mm away from the broken wire ends;

[0055] 3. Use the twist wrench 40 to cover the twisting shaft 14 of the positioning wire clamp 10, and twist the wire surface of the contact wire by rotating the twist wrench 40;

[0056] 4. After the contact line is straightened, a sleeve member 30 composed of a hexagonal sleeve is installed between the two matching members 20 to limit and fix the two docking shafts 22 to prevent twisting and fix the line surface of the contact line.

[0057] 5. After the contact wire surface is fixed, install the special wire break connector clamp to achieve the connection and fixation of the contact wire.

[0058] Beneficial effects:

[0059] The utility model provides an auxiliary tool for quickly connecting broken contact lines. By selecting and modifying common and easily available parts such as old positioning wire clamps 10, old positioners, aluminum alloys, and hexagonal sleeves, a more convenient set of auxiliary tools is formed. The difficulties of low efficiency, high cost, and complicated operation faced by contact line connection operations in the prior art are overcome, and the safety and convenience of contact line maintenance operations are significantly improved.

[0060] Specifically, the positioning wire clamp 10 clamps the contact wire through the front panel 11 and the rear panel 12, and the built-in torsion shaft 14 can adjust the position of the contact wire to ensure the precise alignment of the contact wires on both sides; the mating piece 20 is locked and connected to the positioning wire clamp 10 through the connecting end 21, and the docking shaft 22 at its bottom is plugged into the slot 32 of the sleeve piece 30 to form a stable support structure to effectively control the deviation of the contact wire; the double plug-in end 31 design of the sleeve piece 30 facilitates the rapid insertion and positioning of the docking shaft 22, thereby improving the flexibility and efficiency of the operation; the torque wrench 40 realizes the precise rotation of the torsion shaft 14 through the transmission cooperation with the torsion shaft 14 through the output end 42, thereby ensuring the accurate alignment of the contact wire.

[0061] Among them, the locking structure 13 adopts bolts 131 and nuts 132, which not only ensure the stability of the connection, but also simplify the assembly process; the design of the give way groove 211 of the connecting end 21 avoids interference with the torsion shaft 14, and the precise matching of the connecting hole and the locking hole ensures the accuracy of the connection; the shape of the docking shaft 22 and the slot 32 is adapted, especially the docking shaft 22 with a regular hexagonal cross-section, which further enhances the stability of the connection; the hexagonal sleeve structure of the sleeve member 30 not only provides sufficient strength, but also facilitates quick connection with the docking shaft 22; the bending design between the handle end 41 and the output end 42 of the torque wrench 40, combined with the limiting cooperation of the positioning block 421 and the positioning groove 141, improves the comfort and accuracy of operation.

[0062] In summary, the contact line broken line quick connection auxiliary tool of the utility model achieves high efficiency, low cost and easy operability of the contact line broken line connection operation through innovative structural design and component optimization.

[0063] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A contact network disconnection quick connection auxiliary tool, characterized in that: include: A positioning wire clamp (10) is provided with two and each of the two comprises a front panel (11), a rear panel (12) and a locking structure (13) for locking the front panel (11) and the rear panel (12); a wire groove for clamping a contact wire is formed between the front panel (11) and the rear panel (12) and located at the bottom of the positioning wire clamp (10); a torsion shaft (14) which is rotatable and used for twisting the contact wire is provided at the top of the positioning wire clamp (10) and located between the front panel (11) and the rear panel (12); The mating piece (20) is provided with two parts, each of which includes a connecting end (21) and a docking shaft (22) extending horizontally along the bottom of the connecting end (21), wherein the connecting end (21) is integrally locked to the positioning wire clamp (10) through a locking structure (13) so that the docking shaft (22) and the wire groove are maintained in parallel distribution; The sleeve member (30) has two plug-in ends (31) symmetrically distributed along a straight line, and the two plug-in ends (31) are symmetrically provided with slots (32) for plugging and matching with the docking shaft (22); The torque wrench (40) comprises a handle end (41) and an output end (42), wherein the output end (42) has an output groove which can be matched with the torsion shaft (14) to realize the rotation of the torsion shaft (14).

2. A contact network disconnection quick connection auxiliary tool according to claim 1, characterized in that: The locking structure (13) comprises a bolt (131) and a nut (132). Locking holes are symmetrically arranged on both sides of the front panel (11) and both sides of the rear panel (12). The bolt (131) passes through the two locking holes at the same position on the front panel (11) and the rear panel (12) in sequence and is then locked and connected with the nut (132).

3. A contact network disconnection quick connection auxiliary tool according to claim 2, characterized in that: The connecting end (21) is a flat connecting plate, the center of the top of which is concave to form a clearance groove (211) opposite to the covering position of the torsion shaft (14), and the connecting plate is symmetrically located on both sides of the clearance groove (211) to form connecting holes opposite to the locking hole position, and the bolt (131) passes through the two locking holes and the connecting hole to cooperate with the nut (132) to fix the connecting end (21) on the positioning wire clamp (10).

4. A contact network disconnection quick connection auxiliary tool according to claim 3, characterized in that: The butt joint axis (22) is welded and fixed to the bottom of the connection plate and remains parallel to the plane where the connection plate is located. The butt joint axis (22) extends horizontally along one side of the bottom of the connection plate, and the butt joint axes (22) on the two connection plates extend symmetrically.

5. The contact network disconnection quick connection auxiliary tool according to claim 1, characterized in that: The docking shaft (22) is in the shape of a rod with a regular N-gonal cross section, and the cross section of the slot (32) is adapted to the shape of the docking shaft (22), wherein N=4, 5, 6, 8.

6. A contact network disconnection quick connection auxiliary tool according to claim 5, characterized in that: The docking shaft (22) is in the shape of a rod with a regular hexagonal cross section, and the cross section of the slot (32) is in the shape of a regular hexagon that matches the shape of the docking shaft (22).

7. The contact network disconnection quick connection auxiliary tool according to claim 1, characterized in that: The sleeve member (30) comprises two symmetrically distributed hexagonal sleeves, the two hexagonal sleeves are symmetrically welded and fixed along a straight line and their opening directions are opposite.

8. The contact network disconnection quick connection auxiliary tool according to claim 1, characterized in that: The handle end (41) and the output end (42) of the twist wrench (40) are integrally bent, and the bending angle is 110°-120°.

9. The contact network disconnection quick connection auxiliary tool according to claim 1, characterized in that: A positioning groove (141) is provided on the peripheral side wall of the torsion shaft (14), and a positioning block (421) is provided in the output groove and is limitedly matched with the positioning groove (141).

10. A contact network disconnection quick connection auxiliary tool according to claim 9, characterized in that: The positioning block (421) is columnar.

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