Installation tool for overhead line system bolt locking plate
By designing installation tools for fixed and movable clamping blocks, the problem of difficult installation of contact wire bolts and locking plates was solved, achieving standardized and precise installation results and improving construction quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-03-20
AI Technical Summary
The lack of specialized tools in the existing technology makes it difficult to install contact wire bolts and locking plates, which is time-consuming, labor-intensive, and difficult to meet the technical requirements.
An installation tool including a fixed clamping block and a movable clamping block was designed. The locking plate is limited by a slide rail and a lead screw structure, and a locking component and a bending tool are provided to ensure that the locking plate remains in a stable position during installation.
This has enabled standardized and precise installation of contact wire bolt locking plates, improving installation efficiency, reducing human error, and enhancing construction quality.
Smart Images

Figure CN224012222U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the contact net suspension system installation technical field, concretely relates to a contact net bolt lock piece installation tool. BACKGROUND
[0002] The electrified railway provides power for locomotive through traction power supply system, and the state of the suspension system of the contact net as an important component of the traction power supply system is directly related to the reliability and safety of the train operation. The parts on the contact net are fastened and connected to form the suspension system through bolts and lock pieces of different specifications. Since the contact net bolt has a special function, there are strict technical requirements for its installation position. The technical requirements are that the angle between the wire nose of the load current ring and the wire body is 45°, the long end of the lock piece is bent to the wire clamp body side, and the short end of the lock piece is bent to the nut side. At present, there is no special tool for installing the contact net bolt and the lock piece. During the installation process, the lock piece will rotate with the nut fastening, which is very troublesome, time-consuming and laborious, and it is difficult to meet the above technical requirements after installation. CONTENT OF THE UTILITY MODEL
[0003] The utility model solves the technical problems of the prior art, provides a contact net bolt lock piece installation tool, which can limit the lock piece during installation, so that the installed contact net bolt meets the technical requirements, improves the installation efficiency, and realizes the standardization of the installation of the contact net bolt lock piece.
[0004] The utility model adopts the technical scheme: a contact net bolt lock piece installation tool, including side by side arrangement's fixed clamping block and mobile clamping block, the same side lower part outer wall of fixed clamping block and mobile clamping block is equipped with slide rail, one end of slide rail is fixedly connected with fixed clamping block, and the other end is free end, be installed with the sliding block of the sliding cooperation on the slide rail, and the sliding block is fixedly connected with the outer wall of mobile clamping block, the middle part of the side of fixed clamping block and mobile clamping block away from slide rail is respectively opened with the notch matched with contact wire, the lower part of the side of fixed clamping block away from slide rail is outwardly convex and forms the connecting portion, and the threaded rod is arranged between the lower part of mobile clamping block and the connecting portion, the end portion close to mobile clamping block of threaded rod is fixedly connected with lock nut, and the end portion of the other end of threaded rod is the light pole section that penetrates into fixed clamping block, and the rest is screw section, the light pole section is rotationally matched with the connecting portion, and the screw section is rotationally matched with mobile clamping block, the light pole section of threaded rod is also equipped with the fixed lock block that is rotationally matched with the light pole section, and the end portion of the light pole section of threaded rod is fixedly connected with fixed lock block through bolt, the side of the top of fixed clamping block close to slide rail is formed with the wire nose of load current ring limiting piece, and the other side is hinged with lock piece, the top of fixed lock block is opened with the lock groove matched with lock piece, and the inner side of fixed lock block is also opened with the notch matched with contact wire, the side opposite of fixed clamping block and mobile clamping block is opened with the limit slot matched with lock piece.
[0005] Preferably, the U-shaped whole of the string current-carrying loop wire nose limiting piece is provided with mutually parallel inclined surfaces at the lower part near the side top surface of the moving clamping block and the upper part away from the side bottom surface of the moving clamping block, respectively, and the included angle between the inclined surfaces and the horizontal direction is 45°.
[0006] Preferably, the locking piece comprises a locking rod hinged to the top of the fixed clamping block, the locking rod is matched with the locking groove, and the locking rod is sleeved with a locking block and a locking knob, and the locking knob is threadedly matched with the locking rod.
[0007] Preferably, the locking piece further comprises a locking piece bending tool, the locking piece bending tool comprises a main body in the shape of a clamp, and a bending plate is mounted at the end of one clamp of the main body through a torsion spring, and the end of the other clamp is hinged with a fixed limiting block matched with the outer wall of the bolt.
[0008] The utility model discloses the beneficial effect lies in:
[0009] The utility model discloses small, light in weight, convenient to carry, the high altitude operation personnel has no heavy feeling, and it can realize standardization, precision, professional installation, effectively promotes construction quality, reduces the assembly error that produces because of the difference of worker skill, realizes bolt lock piece one -time installation in place, effectively improves the installation efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1 It is the structure schematic diagram of the utility model;
[0011] Figure 2 It is the structure schematic diagram of another visual angle of the utility model;
[0012] Figure 3 It is the use state diagram of the utility model;
[0013] Figure 4 It is the use state diagram of another visual angle of the utility model.
[0014] In the drawing: 1, fixed clamping block;2, moving clamping block;3, slide rail;4, sliding block;5, notch;6, connecting part;7, screw;8, locking nut;9, fixed locking block;10, bolt;11, string current-carrying loop wire nose limiting piece;12, locking piece;13, locking groove;14, limiting groove;15, inclined surface;16 main body;17, torsion spring;18, bending plate;19, fixed limiting block;1201, locking rod;1202, locking block;1203, locking knob. DETAILED DESCRIPTION
[0015] The utility model will be combined with specific embodiment and be further detailed below.
[0016] EMBODIMENT
[0017] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, the contact net bolt locking piece mounting tool provided by the embodiment comprises a fixed clamping block 1 and a moving clamping block 2 arranged side by side, a slide rail 3 is arranged on the same side of the lower outer wall of the fixed clamping block 1 and the moving clamping block 2, a mounting groove is formed in the lower side wall of the fixed clamping block 1, one end of the slide rail 3 is fixed in the mounting groove, the side wall of the slide rail 3 is flush with the side wall of the fixed clamping block 1 after mounting, the other end of the slide rail 3 is a free end, and a sliding block 4 that is in sliding cooperation with the slide rail 3 is arranged on the slide rail 3, and the sliding block 4 is fixedly connected with the side wall of the moving clamping block 2;
[0018] The lower part of the side of the fixed clamping block 1 away from the slide rail 3 protrudes outward to form a connecting part 6, a lead screw 7 is arranged between the lower part of the moving clamping block 2 and the connecting part 6, a locking nut 8 is fixedly connected with the end of the lead screw 7 close to the moving clamping block 2, the other end of the lead screw 7 is a light pole section that penetrates into the fixed clamping block 1, and the remaining part is a threaded section, the light pole section of the lead screw 7 is in rotating cooperation with the connecting part 6, so that the light pole section of the lead screw 7 can rotate in the connecting part 6, and the threaded section of the lead screw 7 is in threaded cooperation with the moving clamping block 2, so that when the lead screw 7 rotates, the moving clamping block 2 translates along the lead screw 7 under the limitation of the slide rail 3 and the action of the thread; a fixed locking block 9 that is in rotating cooperation with the light pole section is further sleeved on the light pole section of the lead screw 7, and the end of the light pole section of the lead screw 7 limits the fixed locking block 9 by a bolt 10;
[0019] A catenary current loop wire nose limiting piece 11 is formed on the side of the top of the fixed clamping block 1 close to the slide rail 3, and a locking piece 12 is hingedly connected to the other side, the catenary current loop wire nose limiting piece 11 is in the shape of a U as a whole, an inclined surface 15 that is parallel to each other is formed on the side top surface of the lower part close to the moving clamping block 2 and the side bottom surface of the upper part away from the moving clamping block 2, respectively, and the included angle between the inclined surface 15 and the horizontal direction is 45°; the locking piece 12 comprises a locking rod that is hingedly connected to the top of the fixed clamping block 1, a locking block and a locking knob that is in threaded cooperation with the locking rod are sleeved on the locking rod, a locking groove 13 that is in cooperation with the locking rod is formed in the top of the fixed locking block 9, a locking step that is in cooperation with the locking block is formed in the end of the locking groove 13 away from the fixed clamping block 1, the locking block is driven and compressed at the locking step by rotating the locking knob to move towards the fixed locking block 9, so as to realize the connection and fixation of the fixed clamping block 1 and the fixed locking block 9;
[0020] The fixed clamping block 1 and the moving clamping block 2 are respectively provided with a notch 5 corresponding to the contact wire on one side of the slide rail 3, and the fixed locking block 9 is also provided with a notch 5 corresponding to the contact wire on the side opposite to the fixed clamping block 1, and the notch 5 of the moving clamping block 2 is in a U shape, and the notch 5 of the fixed clamping block 1 and the fixed locking block 9 forms a circular through hole for the contact wire after being connected and fixed.
[0021] The side opposite to the fixed clamping block 1 and the moving clamping block 2 is provided with a limiting groove 14 corresponding to the locking piece.
[0022] The locking piece bending tool in the embodiment comprises a main body in the shape of a clamp, and a bending plate is installed at the end of one clamp of the main body through a torsion spring, and the other clamp is hinged with a fixed limiting block which is attached to the outer wall of the bolt 10.
[0023] In use, the locking knob is loosened first to loosen the locking block, so that the locking rod is lifted to separate the fixed clamping block 1 from the fixed locking block 9, and then the locking nut 8 is rotated to drive the moving clamping block 2 to move along the slide rail 3 through the rotation of the lead screw 7, and the moving is stopped when the distance between the fixed clamping block 1 and the moving clamping block 2 is greater than the width of the hanging string clamp; the prefabricated hanging string clamp is clamped on the contact wire, the horizontal piece of the locking piece of the prefabricated hanging string clamp has been bent to the two sides of the hanging string clamp in the length direction of the contact wire and attached to the outer wall of the hanging string clamp; the notches 5 of the fixed clamping block 1 and the moving clamping block 2 are aligned with the contact wire, and the hanging string clamp is located between the fixed clamping block 1 and the moving clamping block 2, the wire nose is clamped into the hanging string current-carrying ring wire nose limiting piece 11, the fixed clamping block 1 is attached to one side of the wire nose of the hanging string clamp, at this time the bent locking piece is clamped in the limiting groove 14 of the fixed clamping block 1, the fixed locking block 9 is rotated to close the fixed clamping block 1, the locking rod is rotated to be located in the locking groove 13, the locking knob is rotated to press the locking block on the locking step on one side of the locking groove 13, and the connection and fixation of the fixed clamping block 1 and the fixed locking block 9 are completed; after the fixed clamping block 1 and the fixed locking block 9 are fixed, the whole device is locked and fixed on the contact wire, the locking nut 8 is rotated to move the moving clamping block 2 to the fixed clamping block 1, the position of the other locking piece of the hanging string clamp is adjusted, the bent piece of the other locking piece is matched with the limiting groove 14 of the moving clamping block 2, and then the bent piece of the locking piece is clamped into the limiting groove 14 of the moving clamping block 2, and the whole hanging string clamp is clamped and fixed, the nuts on both sides of the hanging string clamp are tightened by the torque wrench, at this time the locking pieces at the nuts are limited by the fixed clamping block 1 and the moving clamping block 2, so that the locking pieces will not rotate when the nuts are tightened, after the tightening, the locking pieces are bent to the standard position by the bending tool, the installation of the hanging string clamp is completed after the bending, and finally the locking nut 8 and the locking knob are loosened, and the device is removed.
[0024] The above merely describes preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any modification and replacement based on the technical solutions and the inventive concept provided by the present application should be covered in the protection scope of the present application.
Claims
1. A tool for installing contact wire bolt locking plates, characterized in that: The device includes a fixed clamping block (1) and a movable clamping block (2) arranged side by side. A slide rail (3) is provided on the lower outer wall of the same side of the fixed clamping block (1) and the movable clamping block (2). One end of the slide rail (3) is fixedly connected to the fixed clamping block (1), and the other end is a free end. A slider (4) is installed on the slide rail (3) and slides therewith. The slider (4) is fixedly connected to the outer wall of the movable clamping block (2). The middle part of the side of the fixed clamping block (1) and the movable clamping block (2) away from the slide rail (3) is respectively provided with a notch (5) that matches the contact line. The lower part of the side of the fixed clamping block (1) away from the slide rail (3) protrudes outward to form a connecting part (6). A lead screw (7) is provided between the lower part of the movable clamping block (2) and the connecting part (6). A locking nut (8) is fixedly connected to the end of the lead screw (7) near the movable clamping block (2). The other end of the lead screw (7) The part from the end to the fixed clamping block (1) is a smooth rod section, and the rest is a threaded section. The smooth rod section is rotatably engaged with the connecting part (6), and the threaded section is threadedly engaged with the movable clamping block (2). The smooth rod section of the lead screw (7) is also fitted with a fixed locking block (9) that is rotatably engaged with the smooth rod section. The end of the smooth rod section of the lead screw (7) is limited and fixed by bolts (10). The top of the fixed clamping block (1) near the slide rail (3) is formed with a suspension wire current-carrying coil nose limiting member (11), and the other side is hinged with a locking member (12). The top of the fixed locking block (9) has a locking groove (13) that mates with the locking member (12), and the inner side of the fixed locking block (9) also has a notch (5) that matches the contact line. The fixed clamping block (1) and the movable clamping block (2) have corresponding limiting grooves (14) that match the locking plate on opposite sides.
2. The contact wire bolt locking plate installation tool according to claim 1, characterized in that: The suspension wire current-carrying coil nose limiting member (11) is U-shaped in general. The top surface of its lower part near the movable clamping block (2) and the bottom surface of its upper part away from the movable clamping block (2) are respectively formed with mutually parallel inclined surfaces (15). The angle between the inclined surface (15) and the horizontal direction is 45°.
3. The contact wire bolt locking plate installation tool according to claim 1, characterized in that: The locking component (12) includes a locking rod that is hinged to the top of the fixed clamping block (1). The locking rod engages with the locking groove (13), and a locking block and a locking knob are fitted on the locking rod. The locking knob is threadedly engaged with the locking rod.
4. The contact wire bolt locking plate installation tool according to claim 1, 2 or 3, characterized in that: It also includes a locking plate bending tool, which includes a clamp-shaped body and a bending plate mounted on one end of the clamp by a torsion spring, and a fixing limit block (19) hinged to the other end of the clamp to fit against the outer wall of the bolt (10).