Live-line drain wire clamp

Abstract

This utility model discloses a live-line working guide wire clamp, including a guide wire crimping tube, the surface of which is fixedly connected to a slide rail. This utility model employs the sliding cooperation of the guide wire crimping tube, slide rail, T-shaped groove, and T-shaped slide bar, combined with the elastic linkage of the clamp hook, extrusion post, movable rod, limiting plate, and tension spring, to achieve convenient and secure wire fixing. The elastic force of the tension spring can drive the extrusion post to automatically clamp the wire, eliminating the need for complex manual locking operations. The cooperation between the sliding groove and the slider ensures smooth movement of the extrusion post, making the wire clamping more stable and effectively avoiding the risk of wire detachment during operation. This improves the safety and efficiency of live-line work, and is especially suitable for quickly completing wire splicing in high-voltage electric field environments. The cooperation between the extrusion post and the clamp hook can clamp main lines of different diameters. This device has the advantage of being easy to use.

Description

Technical Field

[0001] This utility model relates to the field of drain clamp technology, specifically a drain clamp for live-line work. Background Technology

[0002] In live-line work involving the splicing of conductors, two common methods are currently used in China: the insulated glove method and the insulated operating rod method. The insulated glove method involves manually securing the branch line to the main line using binding wire (clamps), but the worker is directly exposed to the high-voltage electric field, posing a significant safety hazard. The insulated operating rod method, on the other hand, involves the worker contacting the live conductor through an operating rod, maintaining a safe distance at all times, making it safer than the insulated glove method.

[0003] However, the current method of using insulated operating rods for live-line splicing of lead wires has two significant problems: First, the existing connection structure between the lead wire clamp and the lead wire crimping pipe is fixed, making it impossible to flexibly adapt the lead wire crimping pipe of the corresponding specification according to the different diameters of the branch lead wires, thus limiting its applicability; Second, when fixing the main line, it is difficult to quickly adapt to the surface of the main line with different diameters, and usually requires a complex locking operation. It is extremely difficult to use an insulated operating rod to replace manual labor for wire binding (clamp fixing). It takes a skilled worker about 2 hours to complete the splicing of three 10kV conductors. The labor intensity is high and the work efficiency is low. Therefore, the method of using insulated operating rods for splicing lead wires is rarely used.

[0004] Therefore, it is necessary to design and modify the live-line working clamp to address its shortcomings in adapting to different diameter clamped pipes and quickly fixing to different diameter trunk lines, effectively preventing inconvenience in its use. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a live-line working clamp that is easy to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a live-line working guide clamp, comprising a guide clamping pipe, a slide rail fixedly connected to the surface of the guide clamping pipe, a T-shaped slide groove provided at the top of the slide rail, a T-shaped slide bar slidably connected inside the T-shaped slide groove, a clamp hook fixedly connected to the right side of the T-shaped slide bar, a slide groove provided on the left side of the inner wall of the clamp hook, and a slider slidably connected inside the slide groove, a wire extrusion post fixedly connected to the surface of the slider, the wire extrusion post fitting against the clamp hook, a movable rod slidably connected inside the clamp hook, the top of the movable rod fixedly connected to the bottom of the wire extrusion post, the bottom of the movable rod extending to the bottom of the clamp hook and fixedly connected to a limiting piece, a tension spring fixedly connected to the top of the limiting piece, and the end of the tension spring away from the limiting piece fixedly connected to the bottom of the clamp hook.

[0007] As a preferred embodiment of this utility model, the front of the T-shaped slide bar is provided with a slot, and the number of slots is several. The slide rail is internally threaded with bolts, and the number of bolts is the same as the number of slots. The bolts are inserted into the slots.

[0008] As a preferred embodiment of this invention, both the bolt and the tension spring have an anti-rust coating on their surfaces.

[0009] As a preferred embodiment of this invention, a pull ring frame is fixedly connected to the bottom of the limiting piece.

[0010] As a preferred embodiment of this utility model, the top of the extrusion post and the inner wall of the wire clamp hook are both provided with anti-slip grooves, and the number of anti-slip grooves is several.

[0011] As a preferred embodiment of this utility model, the top and bottom of the drain line crimping pipe are provided with rubber dust covers, and the surface of the rubber dust covers is provided with multiple anti-slip patterns that are evenly distributed in a ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model employs a sliding connection of a drain wire crimping pipe, slide rail, T-shaped slide groove, and T-shaped slide bar, combined with the elastic linkage of wire clamp hook, extrusion column, movable rod, limiting plate, and tension spring, achieving both convenience and firmness in wire fixing. The elastic force of the tension spring drives the extrusion column to automatically clamp the wire, eliminating the need for complex manual locking operations and significantly reducing the operational difficulty of the insulating operating rod. The cooperation between the slide groove and the slider ensures smooth movement of the extrusion column, making the wire clamping more stable and effectively avoiding the risk of wire detachment during operation, thus improving the safety and efficiency of live-line work. It is especially suitable for quickly completing wire splicing in high-voltage electric field environments. The cooperation between the extrusion column and the wire clamp hook can clamp main lines of different diameters. This device has the advantage of being easy to use.

[0014] 2. This utility model uses the slot of the T-shaped slide bar and the bolt of the slide rail for connection. The operator can select and fix the appropriate diameter of the lead wire crimping pipe according to the diameter of the branch line lead wire. Then, the T-shaped slide bar slides into the T-shaped slide groove from top to bottom, and then the bolt is tightened so that the bolt is inserted into the slot, thereby locking the position of the T-shaped slide bar and the line clamp hook, which enhances the applicability of the device in complex live working environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the drain line pressure connector and the wire clamp hook structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the right side of the wire clip hook structure of this utility model;

[0018] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Drainage line crimping pipe; 2. Slide rail; 3. T-shaped slide groove; 4. T-shaped slide bar; 5. Wire clamp hook; 6. Sliding groove; 7. Extrusion post; 8. Movable rod; 9. Limiting plate; 10. Tension spring; 11. Bolt; 12. Anti-slip groove; 13. Pull ring frame; 14. Rubber dust cover. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 4As shown, a live-line working guide clamp includes a guide wire crimping tube 1. A slide rail 2 is fixedly connected to the surface of the guide wire crimping tube 1. A T-shaped slide groove 3 is provided on the top of the slide rail 2. A T-shaped slide bar 4 is slidably connected inside the T-shaped slide groove 3. A clamp hook 5 is fixedly connected to the right side of the T-shaped slide bar 4. A sliding groove 6 is provided on the left side of the inner wall of the clamp hook 5. A slider is slidably connected inside the sliding groove 6. A wire extrusion post 7 is fixedly connected to the surface of the slider. The wire extrusion post 7 fits against the clamp hook 5. The inside of the clamp hook 5 slides... A movable rod 8 is connected, with its top fixedly connected to the bottom of the extrusion post 7. The bottom of the movable rod 8 extends to the bottom of the wire clamp hook 5 and is fixedly connected to a limiting piece 9. A tension spring 10 is fixedly connected to the top of the limiting piece 9, and the end of the tension spring 10 away from the limiting piece 9 is fixedly connected to the bottom of the wire clamp hook 5. The aforementioned drain wire crimping connector 1 is a common existing technology and is common knowledge to those skilled in the art, and will not be described in detail in this application. This utility model uses an insulated operating rod to perform live connection of a 10kV drain wire. First, the prepared non-energized branch line guide wire is fixed inside the guide wire crimping tube 1. The operator can select a guide wire crimping tube 1 with a suitable diameter according to the diameter of the branch line guide wire. Then, the T-shaped slide bar 4 slides into the T-shaped slide groove 3 from top to bottom, and then the bolt 11 is tightened so that the bolt 11 is inserted into the slot, thereby locking the position of the T-shaped slide bar 4 and the wire clamp hook 5. Then, a 10kV insulated operating rod is used to pull down the pull ring frame 13, thereby driving the limit plate 9, the movable rod 8 and the extrusion wire. When column 7 moves down, the tension spring 10 is stretched. Then, using the operating rod, this utility model, together with the branch line and the lead-in line fixed in the lead-in line crimping pipe 1, is suspended from the opening of the line clamp hook 5 onto the 10kV main line. Then, the pull ring frame 13 is released. Under the action of the tension spring 10, the movable rod 8 and the extrusion column 7 move up. The extrusion column 7 cooperates with the line clamp hook 5, thereby clamping the device onto the 10kV main line. The relevant contents not disclosed in this application are common knowledge to those skilled in the art, and will not be described in detail here.

[0022] refer to Figure 4 The T-shaped slide bar 4 has slots on its front side. There are several slots. The slide rail 2 has bolts 11 inside its threaded connection. The number of bolts 11 is the same as the number of slots. The bolts 11 are inserted into the slots.

[0023] As a technical optimization of this utility model, by connecting the slot of the T-shaped slide bar 4 with the bolt 11 of the slide rail 2, the operator can select and fix the appropriate diameter of the lead wire crimping pipe 1 according to the diameter of the branch line lead wire. Then, the T-shaped slide bar 4 slides into the T-shaped slide groove 3 from top to bottom, and then the bolt 11 is tightened so that the bolt 11 is connected with the slot, thereby locking the position of the T-shaped slide bar 4 and the line clamp hook 5, which enhances the applicability of the device in complex live working environments.

[0024] refer to Figure 1 Both bolt 11 and tension spring 10 have rust-proof coatings on their surfaces.

[0025] As a technical optimization of this utility model, the anti-rust coating on the surfaces of bolt 11 and tension spring 10 effectively resists the erosion of moisture, dust, and corrosive substances in the external environment. In outdoor live-line working environments, the device is often exposed to humid, dusty, or corrosive conditions. The anti-rust coating can slow down the corrosion rate of bolt 11 and tension spring 10, maintain the connection strength of bolt 11 and the elastic performance of tension spring 10, extend the service life of both, reduce structural failures caused by corrosion, lower the maintenance frequency and replacement cost of the device, and ensure its long-term stable operation.

[0026] refer to Figure 1 The bottom of the limiting piece 9 is fixedly connected to a pull ring bracket 13.

[0027] As a technical optimization of this utility model, the pull ring frame 13 at the bottom of the limiting plate 9 provides a convenient operating point for the operator. During live-line work, the operator can easily pull the limiting plate 9 by cooperating with the pull ring frame 13 using the insulated operating rod, thereby moving the movable rod 8 and the extrusion column 7 without direct contact with the device, maintaining a safe distance from live parts. The pull ring frame 13 makes operation more effortless, avoids operational difficulties caused by small operating parts, improves operational efficiency during the work process, reduces the risk of misoperation, and ensures the safety of the operator.

[0028] refer to Figure 1 The top of the extrusion post 7 and the inner wall of the wire clamp hook 5 are both provided with anti-slip grooves 12, and there are several anti-slip grooves 12.

[0029] As a technical optimization of this utility model, the anti-slip grooves 12 on the top of the extrusion post 7 and the inner wall of the wire clamp hook 5 significantly increase the friction between the wire and the extruder. During wire clamping, the anti-slip grooves 12 effectively prevent the wire from slipping due to vibration, wind, or other external forces, ensuring that the wire remains in a stable connection state. This anti-slip design enhances the firmness of the wire connection, reduces the problem of increased contact resistance or unstable current transmission caused by wire slippage, and improves the electrical performance and safety reliability of the device.

[0030] refer to Figure 1 The top and bottom of the drain line crimping pipe 1 are provided with rubber dust covers 14, and the surface of the rubber dust covers 14 is provided with multiple anti-slip textures that are evenly distributed in a ring.

[0031] As a technical optimization of this utility model, the rubber dust covers 14 at the top and bottom of the crimping tube 1 can effectively prevent dust, impurities and moisture from entering the crimping tube when the crimping tube 1 is not in use, protect the connection between the crimping tube and the wire from pollution and corrosion, and maintain good conductivity. When the crimping tube 1 needs to be used, the operator can simply pull off the rubber dust covers 14 to the side away from the crimping tube 1.

[0032] The working principle and usage process of this utility model: When using this live-line working guide clamp, the preliminary preparation work should be carried out first. First, the completed non-energized branch line guide wire should be properly fixed inside the guide wire crimping tube 1. Before operation, the rubber dust covers 14 at the top and bottom of the guide wire crimping tube 1 should be removed. These dust covers can normally prevent dust and impurities from entering.

[0033] Based on the actual diameter of the branch line drain line, select a matching drain line crimping pipe 1 for fixing to ensure a secure connection. Then, slide the T-shaped slide bar 4 along the T-shaped groove 3 on the slide rail 2 to the accurate position, ensuring smooth contact between the two during the sliding process. Once in place, tighten the bolt 11 on the slide rail 2 to accurately engage the bolt 11 with the slot on the front of the T-shaped slide bar 4, thereby locking the position of the T-shaped slide bar 4 and the line clamp hook 5 to ensure they do not separate during subsequent operations.

[0034] After fixing the position, prepare to suspend the clamp hook 5 onto the main line. At this time, use the 10kV insulated operating rod to hook the pull ring frame 13 at the bottom of the limiting plate 9, and slowly pull down the pull ring frame 13. This action will cause the limiting plate 9, the movable rod 8, and the extrusion column 7 to move downward together, and the tension spring 10 will be stretched to generate elastic force. While maintaining the downward state, move the entire device together with the branch line drain wire fixed in the drain wire crimping pipe 1 through the insulated operating rod, so that the opening of the clamp hook 5 is aligned with the 10kV main line, and smoothly suspend the clamp hook 5 on the main line, ensuring that the contact position between the hook and the main line is accurate. Then, the tension of the insulating operating rod on the pull ring frame 13 is released. The stretched spring 10 will generate a restoring force, which will drive the movable rod 8 and the extrusion column 7 to move upward. The top of the extrusion column 7 gradually approaches and tightly fits the inner wall of the wire clamp hook 5. The anti-slip grooves 12 on the surfaces of both can increase the friction between them and the wire, effectively preventing the wire from slipping and achieving a stable clamping of the device and the wire. The extrusion column 7 and the wire clamp hook 5 can cooperate to clamp wires of different diameters.

[0035] The metal parts in this device can be made of tin bronze, which is an alloy of copper and tin. Compared with pure copper, its hardness is significantly improved, and it can withstand the clamping force and mechanical impact during operation, avoiding deformation or breakage. At the same time, it retains excellent conductivity, which can meet the current transmission requirements of the drain clamp, and it has good corrosion resistance, making it suitable for complex outdoor environments.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A live-line working guide clamp, comprising a guide clamping pipe (1), characterized in that: The surface of the drain line crimping connector (1) is fixedly connected to a slide rail (2). A T-shaped groove (3) is provided on the top of the slide rail (2). A T-shaped slide bar (4) is slidably connected inside the T-shaped groove (3). A wire clamp hook (5) is fixedly connected to the right side of the T-shaped slide bar (4). A sliding groove (6) is provided on the left side of the inner wall of the wire clamp hook (5). A slider is slidably connected inside the sliding groove (6). An extrusion post (7) is fixedly connected to the surface of the slider. The wire post (7) is attached to the wire clamp hook (5). The wire clamp hook (5) is slidably connected to the inside of the wire clamp hook (5). The top of the movable rod (8) is fixedly connected to the bottom of the extrusion post (7). The bottom of the movable rod (8) extends to the bottom of the wire clamp hook (5) and is fixedly connected to a limiting piece (9). The top of the limiting piece (9) is fixedly connected to a tension spring (10). The end of the tension spring (10) away from the limiting piece (9) is fixedly connected to the bottom of the wire clamp hook (5).

2. The live-line working clamp according to claim 1, characterized in that: The T-shaped slide bar (4) has a slot on its front side. The number of slots is several. The slide rail (2) is internally threaded with bolts (11). The number of bolts (11) is the same as the number of slots. The bolts (11) are inserted into the slots.

3. A live-line working clamp according to claim 2, characterized in that: The surfaces of the bolt (11) and the tension spring (10) are both provided with an anti-rust coating.

4. A live-line working clamp according to claim 3, characterized in that: The bottom of the limiting piece (9) is fixedly connected to a pull ring frame (13).

5. A live-line working clamp according to claim 4, characterized in that: The top of the extrusion post (7) and the inner wall of the wire clamp hook (5) are provided with anti-slip grooves (12), and there are several anti-slip grooves (12).

6. A live-line working clamp according to claim 5, characterized in that: The top and bottom of the drain line crimping pipe (1) are provided with rubber dust covers (14), and the surface of the rubber dust covers (14) is provided with multiple anti-slip patterns that are evenly distributed in a ring.

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