Railway through line live-line maintenance tool

Abstract

The utility model discloses a railway through line live-line maintenance tool, which is used for checking and fastening a threaded fastener on a high rod of a through line frame and comprises an insulating rod body, and the top end of the insulating rod body is detachably connected with a fastener limiting sleeve used for fastening the threaded fastener with a downward end face. An auxiliary tool assembling rod is detachably arranged at the top end of the fastener limiting sleeve, and a wrench sleeving end used for limiting and sleeving a ratchet wrench and a wrench fixing device used for limiting and assembling a dual-purpose wrench are fixedly installed on the auxiliary tool assembling rod. The insulating rod body is matched with the fastener limiting sleeve and used for checking and fastening the threaded fastener with the downward end face, the dual-purpose wrench can check and fasten the threaded fastener with the downward or upward end face, and the ratchet wrench can check and fasten the threaded fastener laterally arranged on the end face. The insulating rod body can keep a safe distance between an inspector and an electrified body, so that electrified maintenance of a circuit is realized, and normal operation of a railway is not influenced.

Description

Technical Field

[0001] This utility model relates to the technical field of railway power line inspection and maintenance tools, and in particular to a live-line inspection tool for railway through lines. Background Technology

[0002] A railway through line is a continuous conductor laid along a railway line, primarily for powering train signals and communication transmission equipment. It is a crucial guarantee for ensuring the safe and stable operation of trains, therefore, its power supply quality and reliability are subject to exceptionally strict requirements. During operation, railway through lines are subject to swaying due to wind, and the amplitude and frequency of this swaying are difficult to control effectively. Consequently, with prolonged use and the effects of this swaying, crossarm nuts, insulator nuts, bird deterrent mounting nuts, and various bolts are prone to loosening. This becomes a factor that hinders the high-quality operation of the through line. To eliminate the impact of these factors on the operation of the through line, power maintenance personnel need to conduct regular inspections.

[0003] When inspecting the above-mentioned phenomena on the through line, the inspectors need to climb to check and tighten the nuts or bolts. Since the operating distance cannot meet the safety distance requirements between the human body and the live parts, the power needs to be cut off to ensure the personal safety of the inspectors. This will affect the normal operation of the railway system. In order to ensure the normal operation of the railway line, it is often necessary to switch the backup line. During this period, timely dispatch and communication are required, which involves a wide range of aspects and is therefore extremely inconvenient. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a live-line maintenance tool for railway lines that does not require switching or disconnecting the circuit during line inspection, is safe and reliable to use, and can perform multi-directional nut or bolt inspection and tightening.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a live-line maintenance tool for railway through lines, used to inspect and tighten threaded fasteners on the high poles of the through line, including an insulating rod body, the top end of which is detachably connected to a fastener limiting sleeve for tightening the threaded fasteners with their end faces downwards, the top end of which is detachably provided with an auxiliary tool assembly rod, the top end of which is fixedly installed with a hexagonal prism-shaped wrench end for limiting the ratchet wrench, and the auxiliary tool assembly rod is also provided with a wrench fixing device for limiting the assembly of a dual-purpose wrench.

[0006] As a preferred technical solution, a rod sleeve is fixedly installed at the top of the insulating rod body, and the outer wall of the end of the rod sleeve is provided with an external thread for connecting the fastener limiting sleeve, and the inner wall of the end of the rod sleeve is provided with an internal hexagonal structure.

[0007] As a preferred technical solution, the lower inner wall of the fastener limiting sleeve is provided with an internal thread that mates with the thread of the rod sleeve, the upper outer wall of the fastener limiting sleeve is provided with an external thread that mates with the thread of the auxiliary tool assembly rod, and the upper inner wall of the fastener limiting sleeve is provided with an internal hexagonal structure.

[0008] As a preferred technical solution, the auxiliary tool assembly rod includes a lower section and an upper section, the wrench fixing device is fixedly clamped between the lower section and the upper section, the lower end of the lower section is provided with an internal thread for assembly with the fastener limiting sleeve, and the end of the wrench set is fixed to the end of the upper section.

[0009] As a preferred technical solution, the wrench fixing device includes a wrench fixing block, which has four wrench mounting surfaces. The four wrench mounting surfaces are arranged opposite each other in pairs, and the opposite wrench mounting surfaces are arranged in parallel. The wrench fixing block is provided with a wrench locking device.

[0010] As a preferred technical solution, the wrench locking device includes a locking screw threaded into the wrench fixing block, with the operating end of the locking screw exposed. At least one wrench mounting plane adjacent to the locking screw and the wrench mounting plane corresponding to the inner end of the locking screw are fitted with a locking steel ball through and limiting it. The locking steel ball is used in conjunction with the locking screw.

[0011] As an improvement to the above technical solution, the locking screw is set as an internal hexagon screw.

[0012] Due to the adoption of the above technical solution, a live-line maintenance tool for railway through lines, used to inspect and tighten threaded fasteners on the elevated poles of the through lines, includes an insulating rod body. The top of the insulating rod body is detachably connected to a fastener limiting sleeve for tightening the threaded fasteners with their end faces downwards. The top of the fastener limiting sleeve is detachably equipped with an auxiliary tool assembly rod. The top of the auxiliary tool assembly rod is fixedly mounted with a hexagonal prism-shaped wrench end for limiting and assembling a ratchet wrench. The auxiliary tool assembly rod also has a wrench fixing device for limiting and assembling a dual-purpose wrench. This utility model... The type has the following beneficial effects: the insulating rod body cooperates with the fastener limiting sleeve to inspect and tighten threaded fasteners with the end face facing downward. The ratchet wrench and the dual-purpose wrench can be assembled with the auxiliary tool assembly rod. The dual-purpose wrench can inspect and tighten threaded fasteners with the end face facing downward or upward, and the ratchet wrench can inspect and tighten threaded fasteners with the end face facing sideways, thus making the use of maintenance tools more flexible. The insulating rod body can keep the inspection personnel at a safe distance from the live parts, thereby realizing live maintenance of the circuit without the need for power outages and switching, thus not affecting the normal operation of the railway. Attached Figure Description

[0013] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the insulating rod and the rod sleeve according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of the insulating rod, the rod sleeve, and the fastener limiting sleeve according to an embodiment of this utility model;

[0017] Figure 4 This is a top view of the fastener limiting sleeve according to an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the auxiliary tool assembly rod according to an embodiment of the present invention;

[0019] Figure 6 This is an assembly diagram of the auxiliary tool assembly rod and the dual-purpose wrench according to an embodiment of this utility model;

[0020] In the diagram: 1-Threaded fastener; 2-Insulating rod; 3-Rod sleeve; 4-Hexagonal structure inside the rod; 5-Fastener limiting sleeve; 6-Hexagonal structure inside the sleeve; 7-Ratchet wrench; 8-Wrench set end; 9-Dual-purpose wrench; 10-Lower section of the rod; 11-Upper section of the rod; 12-Wrench fixing block; 13-Wrench mounting surface; 14-Locking screw; 15-Locking steel ball. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0022] like Figures 1 to 6As shown, the live-line maintenance tool for railway through lines is used to inspect and tighten threaded fasteners 1 on the elevated poles of the through lines. The threaded fasteners 1 include nuts, bolts, etc. This embodiment enables multi-directional inspection and tightening of the threaded fasteners 1, which can be positioned downwards, upwards, or laterally. The live-line maintenance tool for railway through lines includes an insulating rod 2. The specific length of the insulating rod 2 can be determined according to actual usage, allowing inspection personnel to maintain a safe distance from the energized parts, thus enabling live-line maintenance without power outages or switching, and therefore without affecting the normal operation of the railway. The insulating rod 2 can be configured as a telescopic rod, allowing maintenance personnel to adjust it appropriately according to the climbing height, making it more flexible and convenient to use.

[0023] A rod sleeve 3 is fixedly installed at the top of the insulating rod 2. The outer wall of the end of the rod sleeve 3 has external threads for connecting to the fastener limiting sleeve 5. The inner wall of the end of the rod sleeve 3 has an internal hexagonal structure 4, which allows for the fastening of the threaded fastener 1 with its end facing downwards. A fastener limiting sleeve 5, also for fastening the threaded fastener 1 with its end facing downwards, is detachably connected to the top of the insulating rod 2. The fastener limiting sleeve 5 and the rod sleeve 3 have different dimensions and can fasten different types of threaded fasteners 1, thus satisfying the needs of two different sizes of threaded fasteners 1 for inspection purposes.

[0024] The fastener limiting sleeve 5 has a similar structure to the rod sleeve 3, namely, the lower inner wall of the fastener limiting sleeve 5 is provided with an internal thread that mates with the threaded part of the rod sleeve 3, and the upper inner wall of the fastener limiting sleeve 5 is provided with an internal hexagonal structure 6. The fastener limiting sleeve 5 and the rod sleeve 3 can be detachably assembled by the engagement of the external thread and the internal thread, making assembly simple and convenient. In use, the internal hexagonal structure 4 of the rod or the internal hexagonal structure 6 of the sleeve can be used to directly limit and fit the end of the threaded fastener 1, and the threaded fastener 1 with its end face facing downwards can be inspected and tightened by rotating the insulating rod 2.

[0025] The top of the fastener limiting sleeve 5 is detachably equipped with an auxiliary tool assembly rod. In fact, the upper outer wall of the fastener limiting sleeve 5 has an external thread that mates with the auxiliary tool assembly rod. The top of the auxiliary tool assembly rod is fixedly fitted with a hexagonal prism-shaped wrench end 8 for limiting the ratchet wrench 7. The auxiliary tool assembly rod also has a wrench fixing device for limiting the assembly of a dual-purpose wrench 9. The ratchet wrench 7 can inspect and tighten the threaded fastener 1 with its end face facing sideways, while the dual-purpose wrench 9 can inspect and tighten the threaded fastener 1 with its end face facing downwards or upwards. Furthermore, depending on the model of the threaded fastener 1, different models of the ratchet wrench 7 or the dual-purpose wrench 9 can be selected accordingly, making the use of maintenance tools more flexible.

[0026] In use, the rod sleeve 3 can be used alone, or the fastener limiting sleeve 5 can be installed through the rod sleeve 3, or the auxiliary tool assembly rod can be installed through the fastener limiting sleeve 5 and then the ratchet wrench 7 or the dual-purpose wrench 9 can be installed. The specific choice depends on the end face direction of the threaded fastener 1.

[0027] The auxiliary tool assembly rod in this embodiment includes a lower section 10 and an upper section 11. The wrench fixing device is fixedly clamped between the lower section 10 and the upper section 11. The lower end of the lower section 10 has an internal thread for assembly with the fastener limiting sleeve 5. The end of the upper section 11 is fixed with the wrench sleeve end 8. The bottom end of the ratchet wrench 7 has an internal hexagonal groove. In use, the lower end of the ratchet wrench 7 is directly fitted onto the wrench sleeve end 8. The hexagonal prism structure of the wrench sleeve end 8 is used to limit its movement by cooperating with the internal hexagonal groove, so that the ratchet wrench 7 can be rotated at a certain angle by swinging the insulating rod 2 back and forth, thereby achieving the side-mounted threaded fastener 1 on the tightening end face.

[0028] The wrench fixing device includes a wrench fixing block 12, which has four wrench mounting surfaces 13. These four surfaces are arranged in pairs facing each other, with the opposing surfaces parallel to each other. A wrench locking device is provided within the wrench fixing block 12. The dual-purpose wrench 9 is assembled through the wrench mounting surfaces 13 and secured by the wrench locking device, preventing relative movement between it and the insulating rod 2. This allows the dual-purpose wrench 9 to be used to inspect and tighten threaded fasteners 1 with their end faces downwards or upwards by operating the insulating rod 2. Furthermore, the locking device also prevents the dual-purpose wrench 9 from falling from a height, ensuring safe operation.

[0029] Specifically, the wrench locking device includes a locking screw 14 threaded into the wrench fixing block 12, with the operating end of the locking screw 14 exposed. A locking steel ball 15 is threaded through and limited on at least one wrench mounting surface 13 adjacent to the locking screw 14 and on the wrench mounting surface 13 corresponding to the inner end of the locking screw 14. The locking steel ball 15 cooperates with the locking screw 14. The locking screw 14 is an internal hexagon screw, which can be rotated using an internal hexagon wrench to move inward or outward due to its threaded engagement with the wrench fixing block 12.

[0030] When the locking screw 14 moves inward, it pushes each of the locking steel balls 15 outward, causing them to lock into the dual-purpose wrench 9, thus securing the dual-purpose wrench 9. When the dual-purpose wrench 9 needs to be disassembled after use, the locking screw 14 is moved outward using an Allen wrench. Since the locking steel balls 15 lose the outward pushing force, they can move inward into the wrench fixing block 12, releasing the tightness of the dual-purpose wrench 9. The dual-purpose wrench 9 can then be easily separated from the wrench fixing block 12.

[0031] The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A live-line maintenance tool for railway through lines, used to inspect and tighten threaded fasteners on the high poles of the through line, including an insulated pole body, characterized in that: The top end of the insulating rod is detachably connected to a fastener limiting sleeve for fastening the threaded fastener with its end face facing downwards. The top end of the fastener limiting sleeve is detachably provided with an auxiliary tool assembly rod. The top end of the auxiliary tool assembly rod is fixedly installed with a hexagonal prism-shaped wrench end for limiting the ratchet wrench. The auxiliary tool assembly rod is also provided with a wrench fixing device for limiting the assembly of a dual-purpose wrench.

2. The live-line maintenance tool for railway through lines as described in claim 1, characterized in that: A rod sleeve is fixedly installed at the top of the insulating rod. The outer wall of the end of the rod sleeve is provided with an external thread for connecting the fastener limiting sleeve. The inner wall of the end of the rod sleeve is provided with an internal hexagonal structure.

3. The live-line maintenance tool for railway through lines as described in claim 2, characterized in that: The lower inner wall of the fastener limiting sleeve is provided with an internal thread that mates with the thread of the rod sleeve, the upper outer wall of the fastener limiting sleeve is provided with an external thread that mates with the thread of the auxiliary tool assembly rod, and the upper inner wall of the fastener limiting sleeve is provided with an internal hexagonal structure.

4. The live-line maintenance tool for railway through lines as described in claim 3, characterized in that: The auxiliary tool assembly rod includes a lower section and an upper section. The wrench fixing device is fixedly clamped between the lower section and the upper section. The lower end of the lower section is provided with an internal thread for assembly with the fastener limiting sleeve. The end of the upper section is fixed with the end of the wrench set.

5. The live-line maintenance tool for railway through lines as described in claim 1, characterized in that: The wrench fixing device includes a wrench fixing block, which has four wrench mounting surfaces. The four wrench mounting surfaces are arranged opposite each other in pairs, and the opposite wrench mounting surfaces are arranged parallel to each other. The wrench fixing block is provided with a wrench locking device.

6. The live-line maintenance tool for railway through lines as described in claim 5, characterized in that: The wrench locking device includes a locking screw threaded into the wrench fixing block, with the operating end of the locking screw exposed. At least one wrench mounting plane adjacent to the locking screw and the wrench mounting plane corresponding to the inner end of the locking screw are fitted with a locking steel ball through and limiting it. The locking steel ball is used in conjunction with the locking screw.

7. The live-line maintenance tool for railway through lines as described in claim 6, characterized in that: The locking screw is a hex socket screw.

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