Wiring clamp

Abstract

The invention belongs to the technical field of power system detection, and particularly relates to a wiring clamp. A wiring clamp comprises a body; the jaw assembly comprises a first jaw, a second jaw and an insulation connecting piece, the insulation connecting piece is fixedly installed on the upper portion of the body, the first jaw is fixedly connected to one end of the insulation connecting piece, and the second jaw is rotatably connected to the other end of the insulation connecting piece; the first jaw and the second jaw are oppositely arranged; the driving mechanism is installed on the body, the output end of the driving mechanism is in transmission connection with the second jaw, and the driving mechanism is used for driving the second jaw to rotate relative to the first jaw, so that the opening and closing angle between the second jaw and the first jaw is changed, and clamping or loosening of a tested object is achieved.

Description

Technical Field

[0001] This invention belongs to the field of power system testing technology, and particularly relates to a wiring clamp. Background Technology

[0002] Electrical testing and inspection of power system substation equipment is a crucial link in ensuring the safe and stable operation of the power grid. During preventative testing, handover testing, or fault diagnosis, testing personnel need to connect test leads to the primary leads, terminal blocks, or busbars of electrical equipment located at heights. To avoid the risk of falls from heights due to frequent climbing and to improve work efficiency, insulated high-altitude wiring pliers are widely used in field operations. These tools typically consist of an insulated operating rod at the bottom and a metal clamp head at the top. Operators on the ground use the operating rod to attach the clamp head to the equipment at the height, thereby connecting the test lines.

[0003] However, existing high-altitude wiring clamps still have many structural and functional shortcomings in practical applications. First, regarding the clamping mechanism, traditional wiring clamps mostly adopt a "passive clamping" method (such as using spring force or hook gravity) or a "manual mechanical transmission" method (such as driving gears or screws by pulling a rope, rotating an insulating rod, etc., as patents CN103728474A and CN212646749U). The clamping force of the passive clamping method is limited, and it is easy to fall off due to wind or wire swing; while the manual mechanical transmission method is cumbersome to operate, has low torque transmission efficiency, and mechanical parts are prone to wear and jamming, resulting in insecure clamping or difficulty in disassembly. Second, regarding angle adaptability, the angle of the existing clamp head is usually fixed or has a very limited adjustment range. When encountering flat iron arranged perpendicular to the ground, or a drain wire in a narrow position or with a special angle, the operator has difficulty finding a suitable angle of force application, resulting in ineffective hooking or too small contact area, affecting the accuracy of test data. More importantly, in terms of electrical functionality, most existing wiring clamps have a single conductive jaw structure, allowing only one test lead to be extended. This structure cannot meet the requirements of special tests such as loop resistance testing (which requires a four-terminal method, meaning the voltage and current leads must be physically isolated at the contact point). To perform such tests, two wiring clamps are usually needed, which not only multiplies the workload and risk of working at heights but is also often difficult to implement in space-constrained environments.

[0004] Therefore, there is an urgent need to develop a new type of high-altitude wiring device to solve the problems of uncontrollable clamping force and unstable connection caused by relying on manpower or elastic elements in the existing technology. At the same time, it is necessary to solve the problems that the existing device cannot adapt to complex angle working conditions due to its simple structure and cannot meet the multi-functional testing requirements of independently leading out voltage and current circuits. In order to achieve a strong, reliable and rapid connection of high-altitude electrical equipment that meets a variety of electrical test specifications while ensuring the safety of high-altitude operations. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a wiring clamp.

[0006] A wiring clamp, comprising: ontology; A jaw assembly includes a first jaw, a second jaw, and an insulating connector. The insulating connector is fixedly mounted on the upper part of the body. The first jaw is fixedly connected to one end of the insulating connector, and the second jaw is rotatably connected to the other end of the insulating connector. The first jaw and the second jaw are arranged opposite to each other. A driving mechanism is mounted on the main body, and its output end is connected to the second jaw for driving the second jaw to rotate relative to the first jaw, thereby changing the opening angle between the second jaw and the first jaw to clamp or loosen the object being tested.

[0007] Furthermore, the drive mechanism includes a through-type stepper motor and a thread rolling connecting rod; the through-type stepper motor is fixedly installed on the side wall of the body, and the thread rolling connecting rod passes through the rotor center of the through-type stepper motor.

[0008] Furthermore, one end of the thread rolling connecting rod extends to the back of the second jaw and abuts or hinges to the second jaw; the through-type stepper motor drives the thread rolling connecting rod to move linearly along the axial direction, thereby pushing or pulling the second jaw to rotate around its connection point with the insulating connector.

[0009] Furthermore, the second jaw is a split-type buffer structure, including a support plate, an elastic element, and an arc-shaped contact piece; the upper end of the support plate is rotatably connected to the insulating connector, and the back of the support plate is engaged with the output end of the drive mechanism; the arc-shaped contact piece is located on the side of the support plate facing the first jaw, and the elastic element is sandwiched between the arc-shaped contact piece and the support plate.

[0010] Furthermore, the middle part of the arc-shaped contact piece protrudes towards the first jaw, and the two ends of the arc-shaped contact piece contract towards the support plate to form an arc-shaped structure; the elastic element is a compression spring, which is distributed in the gap between the arc-shaped structure and the support plate.

[0011] Furthermore, the wiring clamp also includes wiring terminals, which include a first wiring terminal and a second wiring terminal; the first wiring terminal is electrically connected to the first jaws; the second wiring terminal is electrically connected to the second jaws; and the first wiring terminal and the second wiring terminal are isolated from each other.

[0012] Furthermore, the first jaw facing the second jaw and the second jaw facing the first jaw are both provided with anti-slip contact teeth.

[0013] Furthermore, an angle adjustment mechanism is connected to the bottom of the main body; the angle adjustment mechanism includes a universal joint and a locking knob; the upper end of the universal joint is connected to the main body, and the lower end is provided with a threaded interface for connecting an insulating operating rod; the locking knob is located at the joint of the universal joint.

[0014] Furthermore, the main body is also provided with a wireless control module; the wireless control module is electrically connected to the drive mechanism.

[0015] Furthermore, the insulating connector is made of polytetrafluoroethylene material; the insulating connector is elongated and is vertically fixed to the top of the body, so that the body, the insulating connector and the first jaw together form an inverted L-shaped frame structure.

[0016] The beneficial effects of this invention are: This invention provides a wiring clamp. By incorporating a drive mechanism on its main body and connecting it to a rotatable second jaw, the drive mechanism powers the second jaw to open and close relative to the first jaw. This active, electrically driven structure provides a continuous, controllable, and powerful clamping torque sufficient to overcome contact resistance, depending on the size of the object being tested. This ensures tight contact and a stable mechanical connection between the jaws and the tested wire or terminal block, effectively preventing accidental detachment of the clamp during high-altitude operations due to external disturbances. Simultaneously, an insulating connector physically connects the first and second jaws while electrically isolating them, creating a unique dual-circuit conductive architecture. This allows each jaw to be used as an independent electrode, directly supporting the independent lead-out of voltage and current lines. This enables complex electrical tests requiring four-terminal wiring, such as loop resistance testing, to be performed in a single connection operation, significantly improving the device's versatility and functional expandability. Furthermore, this structure, combined with automated drive, simplifies the operation process and reduces workload. Through stable mechanical self-locking and electrical isolation, it significantly improves the accuracy of high-altitude test data and operational safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a wiring clamp provided in an embodiment of the present invention.

[0018] Figure 2 This is a front view structural diagram of a wiring clamp provided in an embodiment of the present invention.

[0019] Figure 3 This is a side view of a wiring clamp provided in an embodiment of the present invention.

[0020] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure along the AA direction.

[0021] Reference numerals: 100, wiring clamp; 110, body; 120, jaw assembly; 121, first jaw; 122, second jaw; 1221, support plate; 1222, elastic element; 1223, arc-shaped contact piece; 123, insulating connector; 124, anti-slip contact teeth; 130, drive mechanism; 131, through-type stepper motor; 132, ball screw; 133, wireless control module; 140, terminal block; 141, first terminal block; 142, second terminal block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the present application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be regarded as limitations on the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] In the following description, references to "some embodiments" refer to a subset of all possible embodiments; however, it is understood that "some embodiments" may be the same or different subsets of all possible embodiments and may be combined with each other without conflict. Unless otherwise defined, all technical and scientific terms used in the embodiments of the invention have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments of the invention pertain. The terminology used in the embodiments of the invention is for the purpose of describing the embodiments of the invention only and is not intended to limit the invention.

[0024] Those skilled in the art should understand that, in the following description of the embodiments of the present invention, the sequence of numbers does not imply the order of execution. Some or all steps may be executed in parallel or sequentially. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0025] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0026] like Figures 1 to 4As shown, this invention provides a wiring clamp 100, specifically an electrically operated, insulated high-altitude wiring clamp. This device is mainly used in the field of high-altitude electrical testing in power systems, and can solve the problems of insufficient clamping force, limited angle adjustment, and inability to meet the multi-functional requirements of traditional wiring clamps, such as circuit resistance testing. From the overall mechanical structure, the wiring clamp 100 mainly consists of a body 110 as a supporting base, a jaw assembly 120 for performing clamping actions, a drive mechanism 130 for providing power, and terminals 140 for electrical connections. The body 110 serves to support all functional components and provide an insulated operating interface. The jaw assembly 120 is located on top of the body 110 and adopts an insulated, separate design, enabling physical and electrical isolation between voltage and current electrodes. The drive mechanism 130 is integrated into the body 110, using electric transmission to replace traditional manual rope pulling or rotation operations. The terminals 140 are respectively arranged on different potential components of the jaw assembly 120 for use with external testing instruments.

[0027] The main body 110 is the skeleton of the entire device, and it is usually designed as a long rod-like structure to facilitate docking with the insulated operating rods commonly used in power systems. In terms of material selection and manufacturing process, the main body 110 is preferably made of materials with high mechanical strength and excellent electrical insulation properties, such as epoxy resin glass fiber traction rods, polytetrafluoroethylene (PTFE), or modified nylon composite materials. This not only ensures operational safety in high-voltage environments and prevents creepage or flashover, but also provides sufficient rigidity to resist the reaction force during clamping while reducing overall weight. The bottom end of the main body 110 usually has a standard threaded interface, snap-fit ​​interface, or plug-in interface (not shown in detail in the figure, but common knowledge) for a secure connection with the extended insulated link rod, thereby extending the working height to several meters or even tens of meters above ground.

[0028] An insulating connector 123 is fixedly installed at the top of the main body 110. The insulating connector 123 is a key structural component for realizing the dual-circuit testing function of this invention. Mechanically, it acts as a beam or bridge, while electrically it provides absolute isolation. Figure 2 and Figure 4As shown, the insulating connector 123 is a long strip-shaped plate or block structure, one end of which is rigidly fixed to the top of the body 110 by bolts, rivets, or strong adhesives. Alternatively, the insulating connector 123 can be directly injection molded integrally with the body 110 to achieve optimal structural integrity. The material selection of the insulating connector 123 is crucial. In addition to requiring extremely high volume resistivity and surface resistivity, it must also possess excellent bending strength and shear strength, as it needs to withstand the tension generated by the first jaw 121 and the second jaw 122 during strong clamping. Preferably, the insulating connector 123 can be made of reinforced polytetrafluoroethylene sheet, PEEK (polyether ether ketone) sheet, or ceramic composite material. Its surface can also be processed with umbrella skirts or corrugated structures to increase creepage distance, further adapting to the electrical insulation requirements of outdoor humid or dirty environments.

[0029] The jaw assembly 120 has an overall inverted "L" or "U" shaped frame layout, mainly including a first jaw 121 and a second jaw 122 that are set opposite to each other.

[0030] The first jaw 121, as the outer jaw, is designed as a fixed structure. It is vertically fixed to the end of the insulating connector 123 away from the body 110 and extends downward. The first jaw 121 is made of a highly conductive metal material, such as copper, brass alloy, or silver-plated aluminum alloy, to ensure extremely low contact resistance and temperature rise during high-current testing (such as loop resistance testing). To enhance structural rigidity and prevent outward deformation under stress, the cross-section of the first jaw 121 can be designed as T-shaped, I-shaped, or thickened rectangular. Anti-slip contact teeth 124 are provided on the inner surface of the first jaw 121 (i.e., facing the second jaw 122). The anti-slip contact teeth 124 can be directly milled from the base of the first jaw 121, or they can be inlaid high-hardness conductive teeth. The tooth shape is preferably an acute-angled triangle or trapezoid, which can effectively pierce the oxide layer, paint layer, or dirt layer on the surface of the tested wire or terminal block, establishing a good metal conductive channel.

[0031] The second jaw 122, as the inner jaw, is designed as a movable structure and is located between the first jaw 121 and the body 110. Unlike the simple overall movement of traditional wiring clamps, the second jaw 122 in this embodiment employs a rotation or swing mechanism. Figure 4 As shown, the upper end of the second jaw 122 is rotatably hinged to the end of the insulating connector 123 near the body 110 via a fixed rotating shaft (implied in the connection point in the figure), or directly hinged to the extension structure at the top of the body 110. This hinged method allows the second jaw 122 to swing like a pendulum around the hinge point at the top, thereby changing the distance between its lower part and the first jaw 121, and realizing the clamping action.

[0032] To address the challenges of small contact area and easy damage to equipment in existing rigid clamping technologies, the second jaw 122 adopts a split-type buffer adaptive structure. Specifically, the second jaw 122 is not a single metal block, but a multi-layer composite system composed of a support plate 1221, an elastic element 1222, and an arc-shaped contact piece 1223.

[0033] The support plate 1221 is the skeleton of the second jaw 122, with its upper end hinged to the insulating connector 123, and its back (i.e., the side facing the body 110) used to withstand the thrust of the drive mechanism 130. The support plate 1221 can be made of a high-strength metal material (such as stainless steel or hard aluminum) to transmit huge mechanical pressure.

[0034] The arc-shaped contact piece 1223 is located in front of the support plate 1221 (i.e., on the side facing the first jaw 121). Its two ends (upper and lower) are respectively limited and connected or hinged to the two ends of the support plate 1221, but relative displacement is allowed in the middle. The arc-shaped contact piece 1223 is made of a material with a certain degree of elasticity and excellent conductivity, such as beryllium copper, phosphor bronze, or spring steel plated with silver. Its shape is pre-formed as an outwardly convex "bow" or "arc". This shape design allows the jaws to provide a more inclusive contact angle when contacting the object being measured (whether it is a cylindrical wire or a flat ribbon cable) by utilizing the geometric characteristics of the arc surface. The surface of the arc-shaped contact piece 1223 is also covered with anti-slip contact teeth 124, which cooperate with the first jaw 121 to form a double-sided bite on the object being measured.

[0035] The elastic element 1222 is disposed in the gap between the support plate 1221 and the arc-shaped contact piece 1223. The elastic element 1222 can be a plurality of evenly distributed helical compression springs, or it can be a wave-shaped spring sheet, a disc spring assembly, or a high-strength rubber block resistant to high and low temperatures. In this embodiment, as... Figure 4 As shown in the cross-section, multiple helical springs are used as elastic elements 1222. One end of these springs abuts against the inner surface of the support plate 1221, and the other end abuts against the concave surface of the arc-shaped contact piece 1223. When the drive mechanism pushes the support plate 1221 outward to press it tight, the rigid support plate 1221 forces the springs to compress, and the springs then flexibly transmit the pressure to the arc-shaped contact piece 1223. This "floating clamping" mechanism has significant technical advantages: First, it can adapt to the shape of the object being measured; when clamping a round wire, the arc-shaped piece deforms to wrap around the wire, increasing the contact points; second, it provides constant contact pressure, and even when thermal expansion and contraction or wind vibration causes slight displacement of the object being measured, the spring's rebound force can ensure continuous clamping and prevent loosening of the contact; finally, it provides overload protection, preventing excessive motor drive force from causing permanent plastic deformation of the jaws or the device being measured.

[0036] It is particularly important to emphasize that the first jaw 121 and the second jaw 122 are completely electrically isolated from each other through the insulating connector 123. This means that they can each carry different potentials. For example, when performing loop resistance testing, the positive terminal of the current source can be connected to the first jaw 121, and the positive terminal of the voltage detection can be connected to the second jaw 122 (or vice versa), thereby achieving a true four-wire (Kelvin) connection at the test point and eliminating the interference of the resistance of the test leads themselves on the measurement results, which is something that traditional single-jaw clamps cannot achieve.

[0037] The drive mechanism 130 is the power source for this wiring clamp, and it is installed in the upper middle part of the body 110. In order to achieve a compact and lightweight structure, the present invention preferably uses a through-type stepper motor 131 as the power source.

[0038] The through-type stepper motor 131 is fixedly mounted on a motor bracket on the side wall of the body 110, or directly embedded in a groove in the body 110. This type of motor is characterized by an internal thread inside its rotor (i.e., the nut function is integrated into the rotor center), and the rotor center is hollow. It is coupled with a long, strip-shaped ball screw 132 (or trapezoidal screw). The ball screw 132 passes through the rotor center of the through-type stepper motor 131. When the motor stator is energized and generates a rotating magnetic field to drive the rotor to rotate, because the screw 132 is restricted from rotating with the rotor (by a guide key or only by frictional force from contact with the jaws), the thread engagement forces the screw 132 to move linearly along the axial direction.

[0039] One end (front end) of the ball screw 132 extends to the back of the second jaw 122. In this embodiment, the front end of the screw 132 does not necessarily have to be rigidly connected to the second jaw 122; it can be designed to abut against each other. That is, when the motor rotates forward, the screw 132 extends forward, pushing against the support plate 1221 of the second jaw 122, causing it to swing outward around the top hinge axis, thereby closing the jaws. When the motor rotates in reverse, the screw 132 retracts backward. At this time, the second jaw 122 retracts along with the screw due to its own weight, or by a return torsion spring provided at the hinge axis, or by a tension spring provided between the first and second jaws, thereby releasing the jaws. Of course, in another preferred embodiment, the front end of the screw 132 is rotatably connected to the back of the support plate 1221 via a ball joint hinge or pin, realizing bidirectional control of active push and active pull, further improving the reliability of the action.

[0040] The use of a through-type stepper motor 131 in conjunction with a ball screw 132 offers significant technical advantages: First, the stepper motor can precisely control the rotation angle, and then accurately calculate the extension distance of the screw through the pitch, achieving precise digital control of the clamping opening (0-100%). Second, the screw drive has self-locking characteristics (especially for trapezoidal screws). When the motor is powered off, the screw will not retract due to the reaction force of the jaws, ensuring that the clamping state can be maintained for a long time after power failure. This is particularly important for long-term electrical testing, saving energy and ensuring safety. Third, this linear drive method acts directly on the back of the jaws, and the lever arm design is reasonable, generating a huge clamping torque that far exceeds that of manual operation.

[0041] In terms of control, the main body 110 integrates a wireless control module 133 and a power module (battery). The wireless control module 133 may include a radio frequency (RF) receiver chip, a Bluetooth module, or a ZigBee module for receiving commands issued by a handheld remote control by a ground operator. The power module preferably uses a high-energy-density lithium-ion battery pack to power the motor and control circuitry. A current monitoring function may also be integrated on the control circuit board; when the motor current reaches a preset threshold (meaning the clamping force has reached its limit), the motor will automatically stop rotating to prevent overload damage. Furthermore, to adapt to outdoor operations, the motor, battery, and control module are all equipped with protective housings, achieving an IP54 or higher protection rating to prevent rain and dust intrusion.

[0042] In order to convert the contact of the jaws into the input / output of the test instrument, terminal blocks 140 are arranged on the jaw body.

[0043] The first terminal 141 is located on the outside or above the first jaw 121 and maintains good electrical continuity with the first jaw 121 by means of screws, welding, or crimping. The first terminal 141 can be a socket type, a terminal post type, or a quick-connect interface, used to connect an external first test lead (e.g., a current line).

[0044] The second terminal 142 is disposed on the second jaw 122. Since the second jaw 122 is a moving part and is isolated from the first jaw 121 by an insulating connector 123, the lead design of the second terminal 142 needs to consider motion compensation. The second terminal 142 is typically fixed directly to the lower end of the arc-shaped contact piece 1223 or the support plate 1221, and is led out through a highly flexible braided copper strip or multi-strand soft copper wire to connect to the fixed terminal block on the body 110, or directly used as a terminal for external wire connection. To prevent motion interference, the position of the second terminal 142 should avoid the movement trajectory of the lead screw 132.

[0045] In practical loop resistance testing applications, the operator connects the instrument's current output line to the first terminal 141 and the voltage sampling line to the second terminal 142. When the jaws clamp the busbar under test, the first jaw 121 introduces a large current, and the second jaw 122 samples the voltage drop. Since the two are insulated on the clamp body, the current will not flow directly to the voltage terminal in a short circuit, which fully conforms to the Kelvin four-wire detection principle and greatly improves the accuracy of micro-ohm resistance measurement.

[0046] Although the accompanying drawings primarily show the upper structure, the textual description in this specification should indicate that an angle adjustment mechanism (universal joint) is provided between the bottom of the body 110 and the insulating operating rod. This mechanism typically includes a ball joint or cross joint, allowing the wiring clamp body 110 to freely rotate relative to the operating rod in the X and Y axis directions. To secure the adjusted angle, a locking knob or gear locking device is provided at the joint. The operator, observing the position and angle of the elevated equipment from the ground, pre-adjusts and locks the universal joint so that the jaw opening direction is directly facing the conductor being tested (e.g., a busbar perpendicular to the ground, a horizontally oriented conductor, or an inclined drain wire), thereby significantly improving the first-time success rate of wiring.

[0047] Based on the above structure, the specific method of using the wiring clamp of the present invention is as follows: Preparation Phase: The operator first checks the battery level and mechanical condition of the wiring clamp 100. Depending on the test item (e.g., loop resistance test), connect the test leads of the testing instrument to the first terminal 141 and the second terminal 142 respectively. Screw the interface at the bottom of the wiring clamp body 110 into the top of the insulated operating rod.

[0048] Angle adjustment: Based on the spatial position and orientation of the equipment under test (such as high-voltage disconnect switch contacts, transformer bushing leads), loosen the locking knob of the angle adjustment mechanism at the bottom of the main body, rotate the main body 110 so that its jaws face the angle most conducive to hooking, and then tighten the locking knob to fix the posture.

[0049] Lifting and Connecting: The operator holds the insulated operating rod and lifts the wiring pliers to a high position. At this time, the through-type stepper motor 131 can be reversed by the remote control, which drives the ball screw 132 to retract, causing the second jaw 122 to retract inward (or retreat) under the action of the reset force, thereby increasing the opening distance between the first jaw 121 and the second jaw 122 until the distance is greater than the diameter or width of the object being measured.

[0050] Electric clamping: The first jaw 121 is hung on the conductor being tested, using it as a hook for weight support. The operator then presses the "clamp" button on the remote control. The wireless control module 133 receives the signal and drives the through-type stepper motor 131 to rotate forward. The motor rotor drives the ball screw 132 to extend forward axially, and the tip of the screw pushes against the back of the support plate 1221 of the second jaw 122. The support plate 1221 rotates around its top axis, approaching the first jaw 121.

[0051] Adaptive buffering: When the arc-shaped contact piece 1223 of the second jaw 122 contacts the surface of the object being measured, as the lead screw 132 continues to advance, the arc-shaped contact piece 1223 stops moving due to resistance, while the support plate 1221 continues to press forward, causing the elastic element 1222 (spring) between the two to be compressed. The reaction force of the spring causes the arc-shaped contact piece 1223 to fit tightly against the surface of the object being measured, and its arc-shaped structure may undergo slight elastic deformation to envelop the object being measured. At the same time, the first jaw 121 also tightly hooks onto the object being measured under the reaction force. The anti-slip contact teeth 124 pierce the oxide layer under the huge clamping force, achieving perfect conductivity. The motor automatically stops and self-locks after detecting an increase in current or reaching a preset number of steps.

[0052] Testing and Disassembly: Conduct electrical tests. After the tests are completed, operate the "Release" button on the remote control. The motor will reverse, the lead screw will retract, the spring will release its pressure, and the second jaw 122 will open. The operator can then remove the wiring pliers and lower the insulating rod.

[0053] To ensure the reliability and durability of the device, the materials and processes for each component can be further optimized in the specific implementation as follows: The connection between the insulating connector 123 and the body 110 can adopt a labyrinth structure design to increase the surface creepage distance and improve the withstand voltage rating.

[0054] The conductive surfaces of the first jaw 121 and the second jaw 122 may be plated with gold or silver to prevent oxidation and rust during long-term outdoor use and to maintain low contact resistance.

[0055] The lead screw 132 and motor 131 can be coated with aerospace-grade grease, which can both lubricate and prevent rust, and is suitable for a wide temperature range of -40℃ to +60℃.

[0056] The stiffness coefficient (k value) of the elastic element 1222 should be calculated to ensure that it can provide a contact pressure of at least 50N-100N under the rated torque of the motor without plastic failure.

[0057] In summary, this specific embodiment, through a detailed structural description, demonstrates how the present invention achieves automation, stability, and multifunctionality in high-altitude wiring through electric drive, insulated split jaws, and an adaptive buffer structure. This design not only solves many pain points in the prior art but also significantly improves the efficiency and safety of power operations through ingenious mechanical and electrical coordination. The above description is merely a preferred embodiment of the present invention; all equivalent variations and modifications made within the scope of the claims of this invention should be considered within the scope of this invention.

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A type of wiring clamp, characterized in that, include: ontology; The jaw assembly includes a first jaw, a second jaw, and an insulating connector. The insulating connector is fixedly installed on the upper part of the body. The first jaw is fixedly connected to one end of the insulating connector, and the second jaw is rotatably connected to the other end of the insulating connector. The first jaw and the second jaw are arranged opposite to each other. as well as A driving mechanism is mounted on the main body, and its output end is connected to the second jaw for driving the second jaw to rotate relative to the first jaw, thereby changing the opening angle between the second jaw and the first jaw to clamp or loosen the object being tested.

2. A wiring clamp according to claim 1, characterized in that, The drive mechanism includes a through-type stepper motor and a thread rolling connecting rod; the through-type stepper motor is fixedly installed on the side wall of the body, and the thread rolling connecting rod passes through the rotor center of the through-type stepper motor.

3. A wiring clamp according to claim 2, characterized in that, One end of the thread rolling connecting rod extends to the back of the second jaw and abuts or hinges with the second jaw; the through-type stepper motor drives the thread rolling connecting rod to move linearly along the axial direction, thereby pushing or pulling the second jaw to rotate around its connection point with the insulating connector.

4. A wiring clamp according to claim 1, characterized in that, The second jaw is a split-type buffer structure, including a support plate, an elastic element, and an arc-shaped contact piece; the upper end of the support plate is rotatably connected to the insulating connector, and the back of the support plate is engaged with the output end of the drive mechanism; the arc-shaped contact piece is located on the side of the support plate facing the first jaw, and the elastic element is sandwiched between the arc-shaped contact piece and the support plate.

5. A wiring clamp according to claim 4, characterized in that, The middle part of the arc-shaped contact piece protrudes towards the first jaw, and the two ends of the arc-shaped contact piece contract towards the support plate to form an arc-shaped structure; the elastic element is a compression spring, which is distributed in the gap between the arc-shaped structure and the support plate.

6. A wiring clamp according to claim 1, characterized in that, The wiring clamp further includes wiring terminals, which include a first wiring terminal and a second wiring terminal; the first wiring terminal is electrically connected to the first jaws; the second wiring terminal is electrically connected to the second jaws; and the first wiring terminal and the second wiring terminal are isolated from each other.

7. A wiring clamp according to claim 1, characterized in that, The first jaw facing the second jaw and the second jaw facing the first jaw are both provided with anti-slip contact teeth.

8. A wiring clamp according to claim 1, characterized in that, An angle adjustment mechanism is connected to the bottom of the main body; the angle adjustment mechanism includes a universal joint and a locking knob; the upper end of the universal joint is connected to the main body, and the lower end is provided with a threaded interface for connecting an insulating operating rod; the locking knob is located at the joint of the universal joint.

9. A wiring clamp according to claim 1, characterized in that, The main body is also equipped with a wireless control module; the wireless control module is electrically connected to the drive mechanism.

10. A wiring clamp according to claim 1, characterized in that, The insulating connector is made of polytetrafluoroethylene; the insulating connector is long and strip-shaped and is vertically fixed to the top of the body, so that the body, the insulating connector and the first jaw together form an inverted L-shaped frame structure.

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