A high-altitude wiring device facilitating testing

Abstract

The utility model discloses a high altitude wiring device convenient to test, including telescopic insulating rod, U type hook body and setting in the guide structure of U type hook body. The U type hook body includes first hook arm, second hook arm and the transition section of connecting both, and the inside is equipped with the recessed groove of extending along the inner wall of hook body, is provided with the stopper for blocking the through in the recessed groove. Two electric wire clamps hinged mounting are in the recessed groove of two hook arms, and through the elastic structure drive its opposite and draw close and hold, constitute the holding channel for accommodating the equipment drainage line. The guide structure still includes the braided wire, is used for realizing the electric connection between electric wire clamp and hook body. The device can be through the remote operation of insulating rod, and the U type hook body is hung on the high altitude equipment drainage line, and the quick completion of wiring is avoided under the elastic holding effect, and the structure design is reasonable, and the connection is efficient and firm, and the operation risk is reduced significantly, and the work efficiency is promoted, is applicable to the safe test wiring operation of high altitude power equipment.

Description

Technical Field

[0001] This utility model belongs to the field of high-altitude power equipment testing and condition monitoring technology, and specifically relates to a high-altitude wiring device that is easy to test. Background Technology

[0002] With the rapid development of the power grid, in accordance with the objective requirements for the service life of equipment testing, it is necessary to conduct performance tests on equipment in multiple substations. For example, when conducting routine tests on equipment with voltage levels of 35kV and above, such as main transformers, instrument transformers, and surge arresters, the equipment is relatively high. According to conventional methods, it is necessary to climb the test wiring using aerial work platforms or insulated ladders. However, for equipment that has been in operation for a long time, the durability of its insulating porcelain insulators has decreased and may not be able to bear a large weight. Generally, in accordance with relevant safety regulations, personnel at heights are prohibited from stepping on insulating porcelain insulators. Furthermore, for special altitude environments (such as Tibet), primary equipment appears particularly tall. During a single equipment test, the usual method is to transport the wiring personnel to the equipment pile head using an insulated ladder or insulated boom truck. This requires two wiring personnel and one on-site supervisor. For equipment that needs to be tested with all three phases simultaneously, the wiring personnel also need to move back and forth between the bushings, increasing the cost of the aerial work platform and manpower. Because multiple aerial work operations are required, it is not only inconvenient to operate, but also greatly increases the risks at height. During the back-and-forth movement of the insulated ladder and aerial work platform, the risk of the boom truck colliding with the insulating porcelain insulator increases. The overlapping of the insulated ladder can also cause the porcelain insulator to be subjected to repeated stress, increasing the risk of breakage.

[0003] A patent application with publication number CN103808985A discloses a high-altitude wiring device for high-voltage electrical equipment. This device includes wire clamps, a clamp control rope, a lifting rod, a clamping spring, a test connection wire, an alarm device, an opening linkage, and a fixing head. The wire clamps include a right clamp body, a left clamp body, and clamping teeth. The fixing head is fixedly installed on the upper end of the lifting rod. The clamping teeth are fixedly installed on the right and left clamp bodies and connected to the test wire. The right and left clamp bodies are connected by a clamping spring. The lower ends of the right and left clamp bodies are connected to one end of the opening linkage, and the other end of the opening linkage is fixedly connected by a pin and connected to the clamp control rope. The fixing head also has an alarm device. This device uses a threaded connection so that the lifting rod can lift the wire clamps to the external lead of the electrical equipment. The clamp control rope controls the opening and closing of the clamps, thereby clamping the external lead of the electrical equipment between the two wire clamps. Based on the description of this patent application and... Figure 1It is known that when this device needs to clamp the external leads of electrical equipment, the upper openings of the two clamps must be opened, and then the openings of the two clamps must be aligned with the external leads. However, in complex environments and with relatively high external leads, it is difficult to align the openings of the two clamps with the external leads. Furthermore, since the openings of the two clamps are at the top, even if the external leads are placed between the two clamps, the device cannot guarantee the reliability of the contact between the external leads and the device due to external environmental factors (such as strong winds), thus failing to guarantee the reliability of the conductive path.

[0004] Existing patent application CN202126444U discloses a multi-functional wiring control lever for testing high-altitude electrical equipment, including a clamp head, several sections of the control lever, a lockable plug connection, and a high-voltage test cable lead. The clamp head is spirally connected to the control lever, and the lockable plug connection is connected to the control lever. When using this control lever, it is necessary to align the horizontal locking nozzle of the clamp head with the equipment under test before engaging it. However, this method of operation via the control lever also suffers from the problem of difficulty in aligning the locking nozzle.

[0005] In summary, existing high-altitude wiring devices have problems such as difficulty in climbing, unsafe wiring, time and labor costs, and high operational risks. In particular, there is a problem that the wiring device is difficult to quickly and effectively align with the lead wire of the equipment being connected and to achieve a stable connection. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the shortcomings of existing high-altitude wiring devices by providing a high-altitude wiring device that eliminates the need for climbing, effectively saves costs and time, reduces operational risks, is easy to operate, improves operational efficiency, and facilitates quick and effective alignment and stable connection with the lead wire of the connected equipment.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows: A high-altitude wiring device for easy testing includes a retractable insulating rod, a U-shaped hook for connecting and hanging on a device's lead wire, and a guide structure disposed on the U-shaped hook. The U-shaped hook includes a first hook arm, a second hook arm, and a transition section connecting the first and second hook arms. The guide structure includes two elastic structures and two wire clamps that respectively cooperate with the elastic structures. The free end of the first hook arm is fixed to the top of the insulating rod via a connecting part, and the opening formed by the first and second hook arms faces the insulating rod. The inner side of the U-shaped hook body is provided with an inner groove extending along the inner wall of the hook body. On the first hook arm, the second hook arm, and the transition section, a stop block is provided in the inner groove of the transition section to prevent the inner groove from passing through; two wire clamps are arranged opposite to each other in the U-shaped hook body, one end of each wire clamp is respectively hinged in the inner groove of the first hook arm near the free end and the second hook arm near the free end, forming the hinge end of the wire clamp, and the other end of each wire clamp is respectively arranged on both sides of the stop block, forming the free end of the wire clamp; two elastic structures are respectively arranged in the inner groove of the first hook arm and the second hook arm, and respectively squeeze the two wire clamps toward each other; the two wire clamps form a channel for accommodating the equipment guide wire.

[0008] With its U-shaped hook and guide structure, the device's telescopic length is adjusted according to the equipment height during use. The U-shaped hook is then hung on the equipment's drain line. Pulling forces the elastic structure to contract, clamping the drain line under the elastic's pressure, thus securing it stably within the U-shaped hook. The U-shaped hook's opening faces downwards, allowing for easy connection simply by using an insulating rod to hang it on the drain line. Precise alignment is not required, making operation convenient and eliminating the need for additional high-altitude work equipment. This reduces operational risks and saves time and effort.

[0009] Furthermore, the transition section has an opening along the outer side of the U-shaped hook body that is opposite to and communicates with the inner groove.

[0010] An opening is provided on the outside of the transition section to allow sufficient space for the wire clamp to open and close, while also facilitating the installation of the wire clamp and the flexible structure.

[0011] Furthermore, the guiding structure also includes two braided wires, which are respectively fixedly connected to the ends of the two wire clamps on both sides of the stop block, and the other ends of the two braided wires are respectively fixed to the first hook arm and the second hook arm adjacent to them.

[0012] Braided conductors are typically made of multiple strands of fine metal wire (commonly copper wire) woven together. They are often used as flexible conductive connectors in electrical connections, grounding, and other applications. They can accommodate relative movement between components, ensuring a conductive path and providing some tensile and vibration resistance. In electrical structures requiring movable connections, they can achieve reliable conductivity while preventing rigid conductors from breaking due to frequent bending. This patent application uses braided conductors to connect the connector clamp to the U-shaped hook, thereby ensuring the connection between the equipment's drain wire and the U-shaped hook, and thus guaranteeing a reliable conductive path.

[0013] Preferably, the elastic structure is a torsion spring, which includes a coil portion and two elastic arms. The coil portion is defined within an inner groove, one elastic arm of the torsion spring abuts against the inner wall of the inner groove, and the other elastic arm abuts against the side wall of the connecting wire clamp near its free end. This patent application, by using a torsion spring, facilitates the acquisition of production materials and the manufacturing of the high-altitude wiring device of this patent application.

[0014] Preferably, the connector clamp is curved; the two connector clamps are symmetrically arranged, and each of the two connector clamps has a recessed portion facing each other to accommodate the device drain wire.

[0015] By setting the connector clamp to a curved shape and providing a recess in the middle of the connector clamp, when the U-shaped hook is hung on the equipment's lead wire, the lead wire can be easily placed in the recess in the middle of the two connector clamps by pulling down the insulating rod. This ensures a stable connection between the lead wire and the U-shaped hook, guaranteeing a reliable conductive path.

[0016] Furthermore, the first hook arm, the second hook arm, the transition section, and the connecting wire clamp are all made of conductive metal.

[0017] Furthermore, the guiding structure also includes a guide line, and a terminal block for connecting the guide line is provided on the free end sidewall of the first hook arm.

[0018] The device under test is connected to the testing equipment via a guide wire, and then the testing power is turned on to start the test. The operation is very convenient, thus avoiding the use of aerial work platforms for high-altitude personnel work, effectively saving time, reducing operational risks, improving operational efficiency, and also reducing financial costs.

[0019] Preferably, the free end of the second hook arm is provided with a flange that enlarges the opening of the U-shaped hook body, and the end of the flange is rounded. By increasing the opening of the U-shaped hook body, it is easier for the U-shaped hook body to be hung on the equipment guide line.

[0020] When using the high-altitude wiring device of this utility model, which is convenient for testing, the insulating rod is extended and each section of the insulating rod is fixed. The U-shaped hook is lifted by the insulating rod and hooked onto the equipment's lead wire at high altitude. Then, the U-shaped hook is pulled down by the insulating rod to position the equipment's lead wire between the two wire clamps inside the U-shaped hook. The elastic structure ensures reliable contact between the equipment's lead wire and the wire clamps. At the same time, the wire clamps, braided wire, U-shaped hook, and lead wire form a conductive path. The lead wire is led to the ground and connected to the test equipment. After the equipment under test is powered on, it can be tested by the test equipment.

[0021] This utility model provides a convenient high-altitude wiring device with a simple and ingenious structural design, eliminating the need for existing high-altitude equipment (especially for complex environments). At the same time, it can quickly, effectively, and stably connect the testing equipment and the equipment under test, effectively saving costs and time, reducing operational risks, and improving operational efficiency. Attached Figure Description

[0022] A brief explanation of the contents of each figure in the instruction manual and the markings in the figures is provided: Figure 1 This is a schematic diagram of the high-altitude wiring device structure in an embodiment; Figure 2 This is a perspective view of the U-shaped hook and guide structure in the embodiment; Figure 3 This is a perspective view of the U-shaped hook body in the embodiment; Figure 4 This is a schematic diagram of the U-shaped hook and guide structure in the embodiment. Figure 5 for Figure 4 Sectional view at point AA; In the diagram: 1 is the insulating rod; 2 is the U-shaped hook body; 21 is the first hook arm; 22 is the second hook arm; 23 is the transition section; 24 is the inner groove; 25 is the stop block; 26 is the connecting part; 3 is the torsion spring; 4 is the wire clamp; 5 is the braided wire; 6 is the recessed part; 7 is the guide wire; 8 is the terminal block; 9 is the flange. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings, providing a non-limiting embodiment. However, it should be understood that these descriptions are merely illustrative and not intended to limit the scope of the present invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention. Example

[0024] Combination Figures 1 to 5As shown, a high-altitude wiring device for easy testing includes a retractable insulating rod 1, a U-shaped hook 2 for attaching the lead wire of the device under test, and a guide structure installed on the U-shaped hook 2.

[0025] like Figure 2 and 3 As shown, the U-shaped hook 2 includes a first hook arm 21, a second hook arm 22, and a transition section 23 connecting the two. The free end of the first hook arm 21 is fixed to the top of the insulating rod 1 via a connecting part 26. The opening of the U-shaped hook 2 faces the insulating rod 1, allowing the device to hook from top to bottom when approaching the equipment's guide wire, simplifying the operation path. An inner groove 24 is formed along the inner side of the U-shaped hook 2, extending from the first hook arm 21 and the second hook arm 22 to the transition section 23, forming a continuous groove structure to accommodate part of the guide structure. To prevent the groove from penetrating, a limit stop 25 is provided in the transition section 23. This stop 25 restricts the displacement of the two elastic structures and facilitates partitioned assembly.

[0026] The guiding structure includes two elastic structures and two wire clamps 4 that respectively cooperate with the elastic structures. The two wire clamps 4 are symmetrically arranged in the inner cavity of the U-shaped hook body 2, respectively set on the inner grooves 24 on both sides of the stop block 25, and one end of each clamp is hinged to the inner grooves 24 near the free end of the first hook arm 21 and the second hook arm 22 to form a hinged end, while the other end is freely suspended on both sides of the stop block 25 to form an openable and closable free end. Each wire clamp 4 is curved and has a recessed part 6 in the middle of the clamping part to accurately accommodate the equipment lead wire, so that it makes a stable contact and conducts electricity reliably.

[0027] The two elastic structures are preferably torsion springs 3. Each torsion spring 3 includes a spring coil and two elastic arms. The spring coil is located in the corresponding part of the inner groove 24. One elastic arm presses against the inner wall of the inner groove 24, and the other elastic arm presses against the free end side wall of the corresponding connector clamp 4, so that the two connector clamps 4 clamp each other in the natural state to form a clamping channel for accommodating the device lead wire.

[0028] like Figure 3 and Figure 4 As shown, to improve conductivity reliability, the guiding structure also includes two braided wires 5, one end of which is fixed to the two connecting wire clamps 4 near the stop block 25, and the other end is connected to the adjacent first hook arm 21 and second hook arm 22 respectively. The braided wires 5 can adapt to the rotation of the connecting wire clamps 4, ensuring a continuous and stable conductive path.

[0029] As shown in the figure, in order to facilitate the connection to the test power supply, a terminal block 8 is provided on the free end side wall of the first hook arm 21 for connecting the guide wire 7 to realize the quick power connection between the device and the test equipment.

[0030] To improve the adaptability of the hook, the free end of the second hook arm 22 is provided with a flange 9, the end of which is rounded to prevent scratches or jamming. This flange 9 design effectively increases the opening size of the U-shaped hook body 2, facilitating the smooth entry of the guide line into the device.

[0031] In use, the operator extends the insulating rod 1 to the required length and hooks it from top to bottom onto the high-altitude guide wire via the U-shaped hook 2. Pulling the insulating rod 1 causes the guide wire to enter between the connector clamps 4, and the elastic torsion spring 3 pushes the connector clamps 4 to automatically clamp the guide wire, forming a stable contact. The high-altitude wiring is then completed by connecting it to the testing equipment via the guide wire 7.

[0032] In the description of this utility model, it should be understood that the use of terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, is merely for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model. Furthermore, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A high-altitude wiring device for easy testing, comprising a retractable insulating rod (1), a U-shaped hook (2) for connecting and hanging on the equipment's lead wire, and a guide structure disposed on the U-shaped hook (2); characterized in that, The U-shaped hook body (2) includes a first hook arm (21), a second hook arm (22), and a transition section (23) connecting the first hook arm (21) and the second hook arm (22); the guiding structure includes two elastic structures and two wire clamps (4) that respectively cooperate with the elastic structures; the free end of the first hook arm (21) is fixed to the top of the insulating rod (1) through the connecting part (26), and the opening formed by the first hook arm (21) and the second hook arm (22) faces the insulating rod (1); the inner side of the U-shaped hook body (2) is provided with an inner groove (24) extending along the inner wall of the hook body, and the inner groove (24) is provided on the first hook arm (21), the second hook arm (22), and the transition section (23), and the inner groove on the transition section (23) (24) is provided with a stop block (25) to block the passage of the inner groove (24); the two wire clamps (4) are arranged opposite to each other in the U-shaped hook body (2), one end of the two wire clamps (4) is respectively hinged in the inner groove (24) of the first hook arm (21) near the free end and the second hook arm (22) near the free end and forms the hinge end of the wire clamp (4), and the other end of the two wire clamps (4) is respectively arranged on both sides of the stop block (25) and forms the free end of the wire clamp (4); two elastic structures are respectively arranged in the inner groove (24) of the first hook arm (21) and the second hook arm (22) and respectively squeeze the two wire clamps (4) to move closer to each other; the two wire clamps (4) form a channel for accommodating the device drain line.

2. The high-altitude wiring device as described in claim 1, characterized in that, The transition section (23) has an opening on the outside of the U-shaped hook (2) that is opposite to and connected to the inner groove (24).

3. The high-altitude wiring device as described in claim 1, characterized in that, The guide structure also includes two braided wires (5), which are fixedly connected to the ends of the two wire clamps (4) on both sides of the stop block (25), and the other ends of the two braided wires (5) are fixed to the first hook arm (21) and the second hook arm (22) adjacent to them respectively.

4. The high-altitude wiring device as described in claim 1, characterized in that, The elastic structure is a torsion spring (3), which includes a spring coil and two elastic arms. The spring coil is defined in an inner groove (24). One elastic arm of the torsion spring (3) abuts against the inner wall of the inner groove (24), and the other elastic arm abuts against the side wall of the connector clamp (4) near its free end.

5. The high-altitude wiring device as described in claim 1, characterized in that, The wire clamp (4) is curved; the two wire clamps (4) are symmetrically arranged, and the two wire clamps (4) are respectively provided with recesses (6) for accommodating the device drain wire.

6. The high-altitude wiring device as described in claim 1, characterized in that, The first hook arm (21), the second hook arm (22), the transition section (23), and the connecting wire clamp (4) are all made of conductive metal.

7. The high-altitude wiring device as described in claim 1, characterized in that, The guiding structure also includes a guide line (7), and a terminal block (8) for connecting the guide line (7) is provided on the free end side wall of the first hook arm (21).

8. The high-altitude wiring device as described in claim 1, characterized in that, A flange (9) is provided at the free end of the second hook arm (22) to enlarge the opening of the U-shaped hook body (2), and the end of the flange (9) is rounded.

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