Fixing auxiliary device for voltage and current detection

Abstract

The invention relates to the technical field of current and voltage detection, and discloses a fixing auxiliary device for voltage and current detection, the device is used on a detector, the device comprises a current probe and a voltage probe which are used on the detector, the current probe is formed by hinging two clamp handles through a pivot, and a reset spring is fixedly connected between the two clamp handles; wire holes capable of containing wires are formed in the sides, close to each other, of the two pincer handles, when the pincer handles are held and loosened, the centering assembly conducts propelling and retreating operation on the propelling shaft, the propelling shaft and the auxiliary crankshaft work cooperatively, the three-point centering effect is achieved, and the accurate centering mode can ensure that the diameter of the wires changes no matter how the diameter of the wires changes. Compared with a traditional fixing auxiliary device which is difficult to accurately position wires with different diameters, the device effectively solves the problem that the induced magnetic field is not uniform due to the position deviation of the wires, and the accuracy of a detection result is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of current and voltage detection, and in particular to a fixing auxiliary device for voltage and current detection. Background Art

[0002] The fixing auxiliary device for voltage and current detection is an auxiliary device that can accurately align the wire and firmly fix the probe. Through the above means, it can effectively reduce interference and errors in the measurement process and significantly improve the accuracy of voltage and current detection.

[0003] However, there are still some problems with the existing fixed auxiliary devices for current and voltage detection: First, when using the device to detect current, it is crucial to accurately locate the position of the wire. Ideally, the wire needs to be placed in the middle of the current probe and strictly aligned with the center to ensure the accuracy of the test results.

[0004] However, the actual application scenarios are extremely complex, especially when testing large equipment. The diameters of the wires inside the large equipment vary greatly, and the existing fixing auxiliary devices lack an adaptive and precise centering mechanism for wires of different diameters. When faced with small-diameter wires, existing devices find it difficult to stably and accurately position them at the center of the current probe. Since the detection principle of the current probe is based on electromagnetic induction, etc., deviations in the position of the wire will lead to uneven induced magnetic fields, which in turn will cause significant deviations in the detection results and fail to truly reflect the actual current conditions.

[0005] In addition, during the actual installation of the wires, for safety and protection, they are generally wrapped with cloth for protection during the routing process. During inspection, due to limitations on operating space and device functions, only the portion of the wire that is not wrapped with cloth and is located on one side of the wiring board can be inspected. These wires on the wiring board usually have a certain curvature due to long-term installation and wiring methods. The wires are in a bent state for a long time, and their internal electron distribution and current transmission characteristics will be affected. When using a current probe to clamp such bent wires for inspection, especially small-diameter wires, their own flexibility makes the degree of bending have a more significant impact on the inspection results.

[0006] Bending wires will change the distribution path of current in the wires, causing abnormal magnetic field signals detected by the current probe, and ultimately resulting in inaccurate detection results. Such inaccurate detection results will not only affect the correct judgment of the operating status of the equipment, but may also lead to subsequent wrong decisions based on the detection data, such as incorrectly evaluating equipment performance, performing unnecessary maintenance in advance, or failing to discover potential faults in a timely manner, bringing serious safety risks and economic losses to the stable operation of the equipment and production activities.

[0007] Secondly, current probes and voltage probes are key components of oscilloscopes for detecting voltage and current. Their connection and storage methods are crucial to the normal use and maintenance of the equipment. In actual operations, operators usually use Velcro to wrap and organize the probe wire harnesses for easy access. However, in batch inspection work scenarios, due to the heavy tasks and tight pace, operators often find it difficult to strictly follow the standard operating procedures and carefully organize the probe wire harnesses. This results in the Velcro being easily lost and falling off during frequent inspections. The loss of Velcro not only makes the wire harness lose effective organization and restraint, but also increases additional cost expenditures, and new Velcro needs to be continuously purchased to maintain basic organization needs.

[0008] What is more serious is that due to the lack of standardized operation, the probe harness that is not properly organized has many hidden dangers during the use of the equipment. When the probe is connected to the oscilloscope and is not removed, the messy harness can easily collide with the oscilloscope itself when the operator moves or operates the oscilloscope. This collision may cause wear on the outer sheath of the harness. Over a long period of time, the internal wires may be exposed, causing the risk of short circuit, damaging the probe or even the oscilloscope, and affecting the normal progress of the detection work.

[0009] Moreover, when placing an oscilloscope, there are usually various other devices around it. The messy probe harness may inadvertently rub and collide with these devices, which may not only scratch the harness, but also interfere with the normal operation of other devices. Especially near some devices that are sensitive to the electromagnetic environment, the shaking and friction of the probe harness may introduce electromagnetic interference, causing data errors or failures in other devices, greatly reducing the stability and reliability of the entire detection working environment, and causing many unnecessary troubles and losses to the detection work.

[0010] To this end, the present invention proposes a fixing auxiliary device for voltage and current detection. Summary of the invention

[0011] The object of the present invention is to provide a fixing auxiliary device for voltage and current detection to solve the problems raised in the above background technology.

[0012] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixing auxiliary device for voltage and current detection, which is used on a detector, and the detector is an oscilloscope, including a current probe and a voltage probe used on the detector, the current probe is formed by two clamp handles hinged by a pivot, and a reset spring is fixedly connected between the two clamp handles, and a wire hole for placing the wire is provided on the side where the two clamp handles are close to each other, and a centering component that cooperates with the clamp handle is provided at the clamp handle, and the centering component is used to achieve a three-point and one-center clamping effect for the wire, which includes two lateral clamping mechanisms, a forward clamping mechanism and a propulsion shaft.

[0013] The forward clamping mechanism is installed between the two clamp handles, and one end of the forward clamping mechanism close to the wire hole is fixedly connected to the propulsion shaft.

[0014] The lateral clamping mechanism is associated with the clamp handle and is symmetrically arranged on both sides of the propulsion shaft. The lateral clamping mechanism has elastic rotation capability and can rotate when subjected to the resistance of the propulsion shaft to cooperate with the propulsion shaft to clamp the wire.

[0015] When the clamp handle is pressed, the forward clamping mechanism moves with the clamp handle and pulls the propulsion shaft away from the wire hole synchronously. At the same time, the lateral clamping mechanism also moves away from the wire hole synchronously due to its own elastic rotation ability. At this time, the current probe can clamp the wire.

[0016] When the pressure on the clamp handle is released, the clamp handle is reset under the action of the reset spring, and drives the forward clamping mechanism and the propulsion shaft to move in the opposite direction, that is, toward the wire hole. The propulsion shaft contacts the lateral clamping mechanism during the reverse movement. At this time, the elastic rotation force of the lateral clamping mechanism cannot overcome the resistance force of the propulsion shaft, and the lateral clamping mechanism rotates toward the side close to the center of the propulsion shaft, thereby cooperating with the forward clamping mechanism and the propulsion shaft to achieve centering clamping of the wire at three points.

[0017] Preferably, the centering assembly also includes two through slots opened in the middle of the side of the clamp handle away from the return spring, and the lateral clamping mechanism is installed inside the through slot; the lateral clamping mechanism includes an auxiliary crankshaft rotatably connected to the inside of the through slot, a torsion spring fixedly connected between the auxiliary crankshaft and the inner wall of the through slot, and a rotating wheel rotatably connected to the auxiliary crankshaft on the side close to the pivot; the forward clamping mechanism includes connecting rods rotatably connected to the two clamp handles on the side close to each other, a double-headed connecting shaft arranged between the two clamp handles, and a telescopic rod fixedly connected to the outer surface of the double-headed connecting shaft; the two connecting rods are both rotatably connected to the outer surface of the double-headed connecting shaft, the outer surface of the telescopic rod is fixedly connected with a propulsion shaft, and the surface of the pivot and the two clamp handles are provided with a movable cavity for the propulsion shaft to pass through.

[0018] Preferably, each of the pliers handles has a curved groove symmetrically formed on its outer surface, a resistance rod is symmetrically fixedly connected to one side of the auxiliary crankshaft close to the curved groove, a support groove is symmetrically formed inside the pliers handle, a support spring is symmetrically fixedly connected inside the support groove, and a support plate is fixedly connected to the outer surface of every two support springs; as the auxiliary crankshaft moves, the auxiliary crankshaft can drive the resistance rod on its surface to slide into the curved groove, and at the same time, the resistance rod resists the support plate and causes it to move synchronously.

[0019] Preferably, the side of the propulsion shaft close to the auxiliary crankshaft is disc-shaped, and the side of the disc-shaped propulsion shaft close to the pivot is triangular, and the side of the auxiliary crankshaft away from the return spring is also disc-shaped; as the propulsion shaft moves, the rotating wheel can slide on the surface of the triangular propulsion shaft.

[0020] Preferably, the centering components are made of insulating materials, specifically polycarbonate, and the torsion spring is made of polyurethane elastomer.

[0021] Preferably, the spatial range of the through groove is adapted to the maximum stroke movement trajectory of the auxiliary crankshaft.

[0022] Preferably, a storage assembly is provided outside the detector, and the storage assembly includes a high-position plate symmetrically installed on the top of the detector, the top of the high-position plate is fixedly connected with a screw rod, the top of the screw rod is installed with Velcro 1, and Velcro 2 is symmetrically installed on the outer surface of the detector and below Velcro 1.

[0023] Preferably, the screw rod is a left-hand thread.

[0024] Preferably, the fitting end of the Velcro 1 is located below it, and the fitting end of the Velcro 2 is located above it, and the fitting ends of the Velcro 1 and Velcro 2 can fit each other.

[0025] Preferably, the outer edge of the screw rod is rounded.

[0026] Compared with the prior art, the beneficial effects of the present invention are: 1. When the pliers handle is held and released, the centering component realizes the advancement and retreat operations of the propulsion shaft, and the propulsion shaft and the auxiliary crankshaft work together to achieve a three-point centering effect. This precise centering method can ensure that no matter how the wire diameter changes, it can be stably and accurately located at the center of the wire hole on the pliers handle. Compared with the problem that traditional fixed auxiliary devices are difficult to accurately position when facing wires of different diameters, this device effectively solves the uneven induced magnetic field caused by wire position deviation, greatly improves the accuracy of the detection results, and provides a reliable data basis for accurate judgment of the equipment operation status.

[0027] Secondly, for different diameter wires that may be encountered during detection, especially large diameter wires, the telescopic rod of the device plays a key role. In actual detection, when facing large diameter wires, the telescopic rod will be compressed by the wire due to its elasticity. During this process, the telescopic rod will provide a stable forward trend for the propulsion shaft, so that the current probe can firmly clamp the large diameter wire. At the same time, due to the elastic characteristics of the telescopic rod, in the process of providing clamping force, the force can be adaptively adjusted to avoid excessive squeezing of the wire, effectively protecting the integrity of the wire, and ensuring the stability of current transmission during the detection process, further ensuring the reliability of the detection results.

[0028] Among them, since a number of friction grooves are specially opened on the surface of the propulsion shaft and the auxiliary crankshaft, and the setting of the friction grooves significantly increases the surface contact area, according to the principle of friction, the friction between the wire and the wire is effectively increased. This not only provides a more stable gripping force when clamping the wire and prevents the wire from shifting during the detection process, but also ensures a reliable fixing effect when facing some special wires with relatively smooth surfaces, thereby improving the applicability of the device to different types of wires and further improving the accuracy and stability of detection.

[0029] Among them, when the auxiliary crankshaft moves, the resistance rod will slide into the inside of the curved groove accordingly, and resist the support plate to make it move synchronously. In this process, the resistance rod and the support plate can provide just the right support for wires of different diameters. Whether it is a curved wire or a wire with an arc due to long-term wiring, it can be effectively corrected and supported during the detection process to ensure that the current is stably transmitted in the wire, thereby significantly improving the accuracy of the detection results and reducing the detection errors caused by wire shape problems.

[0030] Among them, due to the rotatable design of the wheel, the traditional friction mode is changed, sliding friction is converted into rolling friction, and friction loss is greatly reduced. This not only extends the service life of the device and reduces maintenance costs, but also ensures that the centering and clamping functions of the device always remain stable and reliable during long-term use, ensuring that the accuracy of the test results is not affected by equipment wear.

[0031] Among them, the torsion spring, support spring and telescopic rod and other elastic elements in the centering assembly all have a reset function. After each detection operation is completed, these elastic elements can quickly restore the various components of the device to their initial state and prepare for the next detection. This design not only improves the detection efficiency, but also avoids the tedious operation of operators manually adjusting the position of components after each detection.

[0032] When the inspection is completed, the operator only needs to wind the used wire harness along the screw rod in an orderly manner. The Velcro 1 on the top of the screw rod and the Velcro 2 under the outer surface of the detector have a cleverly designed fitting end position for easy fitting. This semi-automatic arrangement method can not only efficiently put the wire harness in place and avoid the messy accumulation of the wire harness, but also greatly reduces the risk of Velcro falling off and losing compared to the traditional method of randomly winding with Velcro, effectively reducing the additional cost expenditure caused by the loss of Velcro, and ensuring the long-term stability and economy of the wire harness arrangement work.

[0033] Among them, the high-position plate has a certain height. During the process of arranging the wire harness, it can effectively prevent the two ends of the wire harness from getting stuck due to contact with surrounding objects or falling into a small space, avoiding the inconvenience of arranging due to the jamming of the wire harness.

[0034] Among them, the upward thread direction of the screw rod provides a natural guide for the operator. When the operator winds the wire harness, the direction of the thread can guide the wire harness to be wound around the screw rod in a uniform and orderly manner. This guiding effect not only improves the sorting efficiency, but also ensures the neatness of the wire harness winding, further improving the standardization and aesthetics of the storage of the entire testing equipment.

[0035] The threads of the screw also play an important role in protecting the wiring harness during the sorting and storage process. In the daily testing work environment, the movement, placement of equipment and operation of personnel may cause the wiring harness to be bumped. The threads of the screw are like a natural protective layer. When the wiring harness is wrapped around it, the threads can disperse the impact force that may be applied by the outside world and reduce the probability of the wiring harness being directly bumped, thereby effectively protecting the outer skin of the wiring harness from being scratched and reducing the risk of short circuits and other faults caused by the exposure of internal wires.

[0036] Among them, in the busy and tense batch inspection working environment, efficient use of time is crucial. The storage component design of this device fully considers this practical demand. The operator does not need to spend a lot of time to carefully organize the probe wire harness. Just simply put the wire harness on the screw rod to complete the initial storage. This convenient operation method can store the wire harness in an orderly manner in a short time, greatly saving time and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a front perspective schematic diagram of the main structure of the present invention.

[0038] Figure 2 It is a three-dimensional schematic cross-sectional view of the centering component of the present invention.

[0039] Figure 3 For the present invention Figure 2 Enlarged three-dimensional schematic diagram of the structure at point A in the middle.

[0040] Figure 4 For the present invention Figure 2 Enlarged three-dimensional schematic diagram of the structure at point B in the middle.

[0041] Figure 5 For the present invention Figure 2 Enlarged three-dimensional schematic diagram of the structure at point C in the middle.

[0042] Figure 6 It is a partially cutaway stereoscopic schematic diagram of the centering assembly of the present invention.

[0043] Figure 7 This is a disassembled stereoscopic schematic diagram of the current probe of the present invention.

[0044] Figure 8 For the present invention Figure 7 Enlarged three-dimensional schematic diagram of the structure at point D in the middle.

[0045] Fig. 9 It is a front perspective schematic diagram of the storage assembly of the present invention.

[0046] Fig.10 For the present invention Fig. 9 Enlarged three-dimensional schematic diagram of the structure at E in the middle.

[0047] In the figure: 11, detector; 12, current probe; 121, clamp handle; 122, return spring; 123, pivot; 13, voltage probe.

[0048] 200. Centering assembly; 201. Lateral clamping mechanism; 202. Forward clamping mechanism; 21. Through slot; 22. Auxiliary crankshaft; 23. Torsion spring; 24. Rotating wheel; 25. Connecting rod; 26. Double-headed connecting shaft; 27. Telescopic rod; 28. Propulsion shaft; 29. ​​Bend slot; 210. Resistance rod; 211. Support slot; 212. Support spring; 213. Support plate.

[0049] 3. Storage assembly; 31. High position plate; 32. Screw rod; 33. Velcro 1; 34. Velcro 2. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] It should be noted that the detector 11 only provides the function of detecting current and voltage, and the current probe 12 and the voltage probe 13 only provide the function of connecting the detector 11 to the object to be measured. The working principle and specific structure of the above structure are both existing technologies. Therefore, in view of the versatility of the above structure, its specific principle will not be repeated later.

[0052] Example 1, please refer to Figures 1 to 8 As shown, a fixing auxiliary device for voltage and current detection is used on a detector 11, and the detector 11 is an oscilloscope, including a current probe 12 and a voltage probe 13 used on the detector 11. The current probe 12 is formed by two clamp handles 121 hinged by a pivot 123, and a reset spring 122 is fixedly connected between the two clamp handles 121. A wire hole for placing a wire is provided on the side where the two clamp handles 121 are close to each other, and a centering component 200 that cooperates with the clamp handle 121 is provided. The centering component 200 is used to achieve a three-point and one-center clamping effect for the wire, and includes two lateral clamping mechanisms 201, a forward clamping mechanism 202 and a propulsion shaft 28.

[0053] The positive clamping mechanism 202 is installed between the two clamp handles 121 , and one end of the positive clamping mechanism 202 close to the wire hole is fixedly connected to the propulsion shaft 28 .

[0054] The lateral clamping mechanism 201 is associated with the clamp handle 121 and is symmetrically arranged on both sides of the propulsion shaft 28. The lateral clamping mechanism 201 has elastic rotation capability and can rotate when resisted by the propulsion shaft 28 to cooperate with the propulsion shaft 28 to clamp the wire.

[0055] When the clamp handle 121 is pressed, the forward clamping mechanism 202 moves with the clamp handle 121 and pulls the propulsion shaft 28 away from the wire hole synchronously. At the same time, the lateral clamping mechanism 201 also moves away from the wire hole synchronously due to its own elastic rotation ability. At this time, the current probe 12 can clamp the wire.

[0056] When the pressure on the clamp handle 121 is released, the clamp handle 121 is reset under the action of the reset spring 122, and drives the forward clamping mechanism 202 and the propulsion shaft 28 to move in the opposite direction, that is, to move toward the wire hole. The propulsion shaft 28 contacts the lateral clamping mechanism 201 during the reverse movement. Since the elastic rotation force of the lateral clamping mechanism 201 cannot overcome the resistance force of the propulsion shaft 28 at this time, the lateral clamping mechanism 201 rotates toward the side close to the center of the propulsion shaft 28, thereby cooperating with the forward clamping mechanism 202 and the propulsion shaft 28 to achieve the three-point one-center clamping of the wire.

[0057] It should be noted that the centering assembly 200 also includes two through slots 21 opened in the middle of the side of the clamp handle 121 away from the reset spring 122, and the lateral clamping mechanism 201 is installed inside the through slot 21; the lateral clamping mechanism 201 includes an auxiliary crankshaft 22 rotatably connected to the inside of the through slot 21, a torsion spring 23 fixedly connected between the auxiliary crankshaft 22 and the inner wall of the through slot 21, and a rotating wheel 24 rotatably connected to the side of the auxiliary crankshaft 22 close to the pivot 123, and the forward clamping mechanism 202 includes a torsion spring 23 rotatably connected to the inner wall of the through slot 21, and a rotating wheel 24 rotatably connected to the side of the auxiliary crankshaft 22 close to the pivot 123. The connecting rod 25 on one side of the two clamp handles 121 close to each other, the double-headed connecting shaft 26 arranged between the two clamp handles 121, and the telescopic rod 27 fixedly connected to the outer surface of the double-headed connecting shaft 26; the two connecting rods 25 are rotatably connected to the outer surface of the double-headed connecting shaft 26, the outer surface of the telescopic rod 27 is fixedly connected to the propulsion shaft 28, the pivot 123 and the surface of the two clamp handles 121 are provided with a movable cavity for the propulsion shaft 28 to pass through, and the outer surface of each clamp handle 121 is symmetrically provided with a curved groove 29, and the auxiliary crankshaft 22 is close to the outer surface of the auxiliary crankshaft 22. A resisting rod 210 is symmetrically fixedly connected to one side of the curved groove 29, and a supporting groove 211 is symmetrically opened inside the clamp handle 121. A supporting spring 212 is symmetrically fixedly connected inside the supporting groove 211. The outer surface of each two supporting springs 212 is fixedly connected to a supporting plate 213. As the auxiliary crankshaft 22 moves, the auxiliary crankshaft 22 can drive the resisting rod 210 on its surface to slide into the curved groove 29. At the same time, the resisting rod 210 resists the supporting plate 213 and makes it move synchronously, so that the propulsion shaft 28 is close to the auxiliary crankshaft. One side of the shaft 22 is disc-shaped, and the side of the disc-shaped propulsion shaft 28 close to the pivot 123 is triangular in shape, and the side of the auxiliary crankshaft 22 away from the return spring 122 is also disc-shaped; as the propulsion shaft 28 moves, the wheel 24 can slide on the surface of the triangular propulsion shaft 28, and the material of the centering component 200 is insulating material, specifically polycarbonate, and the torsion spring 23 is made of polyurethane elastomer. The spatial range of the through groove 21 is compatible with the maximum stroke movement trajectory of the auxiliary crankshaft 22.

[0058] It should be noted that, in the initial state, the return spring 122 is not in a contracted state, the telescopic rod 27 is not in a contracted state, the torsion spring 23 is in a tensioned state, and the support spring 212 is in an extended state.

[0059] Specifically, the operator first starts the detector 11 (ie, oscilloscope) and the current probe 12 to prepare for voltage and current detection.

[0060] Then, the operator holds the two clamp handles 121 of the current probe 12, and when the clamp handles 121 are firmly held, the pivot 123 serves as a rotation fulcrum, so that the clamp handles 121 rotate around it. In this process, the clamp handles 121 close to the reset spring 122 are close to each other, causing the reset spring 122 to be compressed. At the same time, according to the lever principle, the clamp handles 121 away from the reset spring 122 are opened outward.

[0061] During the rotation of the clamp handle 121, the connecting rod 25 rotatably connected to the clamp handle 121 also moves accordingly. Since the two connecting rods 25 are respectively connected to different clamp handles 121 and are rotatably connected to the outer surface of the double-headed connecting shaft 26, when the positions of the two clamp handles 121 change, the position of the connecting rod 25 also changes accordingly, thereby pulling the double-headed connecting shaft 26 to move toward the side close to the reset spring 122. The double-headed connecting shaft 26 is fixedly connected to the telescopic rod 27, so the movement of the double-headed connecting shaft 26 will drive the telescopic rod 27 to move synchronously, and finally the propulsion shaft 28 fixedly connected to the telescopic rod 27 also moves toward the side close to the reset spring 122.

[0062] As the propulsion shaft 28 moves, the wheel 24, which was originally in a specific position due to the interaction with the propulsion shaft 28, now obtains sufficient space to move. Since the wheel 24 is rotatably connected to the side of the auxiliary crankshaft 22 close to the pivot 123, and the auxiliary crankshaft 22 is connected to the inner wall of the through groove 21 through the torsion spring 23, when the position of the wheel 24 changes, the external force exerted on the torsion spring 23 changes, and the torsion spring 23, which was originally in a tensioned state, is released. At this time, the auxiliary crankshaft 22 located in the through groove 21 inside the clamp handle 121 will rotate synchronously due to the rotation of the clamp handle 121 and the release of the torsion spring 23.

[0063] During this rotation process, the disc-shaped portion of the auxiliary crankshaft 22 away from the return spring 122 will rotate into the through slot 21, so that the distance between the three points and one center formed by the disc-shaped propulsion shaft 28 and the disc-shaped auxiliary crankshaft 22 reaches a maximum value.

[0064] At the same time, inside the clamp handle 121, the support spring 212 was originally in an extended state, and the support plate 213 fixedly connected to its outer surface was located on the outside of the support groove 211. As the auxiliary crankshaft 22 rotates, the resistance rod 210 symmetrically fixedly connected to the side of the auxiliary crankshaft 22 close to the curved groove 29 will move with the rotation of the auxiliary crankshaft 22, thereby no longer resisting the support plate 213. At this time, the support spring 212 elastically contracts and pulls the support plate 213 back to the support groove 211.

[0065] When the operator places the current probe 12 outside the conductor and stops applying additional pressure to the clamp handle 121, the compressed reset spring 122 starts to work, and the elastic force generated by the reset spring 122 pulls the two clamp handles 121 to reset elastically, so that the clamp handle 121 away from the reset spring 122 is also reset synchronously. During the reset movement of the clamp handle 121, the connecting rod 25 is driven to move again. The connecting rod 25 pushes the propulsion shaft 28 to move in the direction away from the reset spring 122 through the double-headed connecting shaft 26 and the telescopic rod 27.

[0066] As the propulsion shaft 28 moves, the rotating wheel 24 contacts the propulsion shaft 28 again. Since the disc-shaped part of the propulsion shaft 28 close to the auxiliary crankshaft 22 is triangular in shape on the side close to the pivot 123, when the propulsion shaft 28 moves, the rotating wheel 24 will slide on the surface of the triangular-shaped propulsion shaft 28. In this process, the sliding of the rotating wheel 24 will passively tighten the torsion spring 23 again, thereby driving the auxiliary crankshaft 22 to rotate. As the auxiliary crankshaft 22 rotates, the disc-shaped propulsion shaft 28 and the disc-shaped auxiliary crankshaft 22 gradually approach each other again, forming the minimum three-point-one-line distance. At this time, a precise three-point centering effect is achieved, ensuring that the wire can be accurately located at the center of the wire hole on the clamp handle 121.

[0067] During the rotation of the auxiliary crankshaft 22, the resistance rod 210 on its surface will also resist the support plate 213 again and push the support plate 213 to the corresponding position. When the wire is placed in the wire hole, the support plate 213 can provide a reliable support function for the wire, especially for those wires that may be bent due to long-term wiring, it can effectively correct their position, ensure the stable transmission of current in the wire, and improve the accuracy of the detection results.

[0068] It should be noted that when the propulsion shaft 28 is pushed, if it encounters a wire with a larger diameter, the propulsion shaft 28 will first collide with the wire. At this time, the double-headed connecting shaft 26 and the telescopic rod 27 are still pushing the propulsion shaft 28, and the propulsion shaft 28 is blocked by the wire and cannot continue to move forward. Therefore, the telescopic rod 27 will be compressed due to its elasticity. The compression of the telescopic rod 27 can prevent the propulsion shaft 28 from excessively squeezing the wire, while ensuring that sufficient clamping force is provided to the wire, protecting the wire from damage, ensuring the smooth progress of the detection process, and providing reliable protection for accurate detection of current and voltage. The entire work process is closely coordinated, and through the coordinated operation of various components, accurate centering, stable clamping and reliable detection of wires of different diameters are achieved, effectively improving the accuracy and stability of voltage and current detection.

[0069] Finally, after the current is detected on the object to be measured, the operator holds the current probe 12 and moves it away from the object to be measured, and then uses the voltage probe 13 to perform voltage detection on the object to be measured.

[0070] Please note that, please refer to Figure 5 As shown, in the initial state, the torsion spring 23 is in a tensioned state. When the relevant components start to operate, the propulsion shaft 28 moves forward under the push of the double-headed connecting shaft 26 and the telescopic rod 27. At this time, the rotating wheel 24 contacts and conflicts with the propulsion shaft 28. Since the side of the propulsion shaft 28 close to the pivot 123 is triangular in shape, its movement will apply a force to the rotating wheel 24, causing the rotating wheel 24 to rotate under the action of friction.

[0071] From the perspective of the lever principle, the rotation of the wheel 24 is crucial. As the propeller shaft 28 continues to push, the wheel 24 slides on the triangular surface, generating a torque that drives the auxiliary crankshaft 22 to rotate. This rotation causes the disc-shaped end of the auxiliary crankshaft 22 to gradually approach the center of the propeller shaft 28, achieving precise centering. During the entire process, the auxiliary crankshaft 22 completes a specific movement under the interaction between the wheel 24 and the propeller shaft 28.

[0072] Example 2, based on Example 1, please refer to Fig. 9 and Fig.10 As shown, a storage assembly 3 is provided outside the detector 11, and the storage assembly 3 includes a high-position plate 31 symmetrically installed on the top of the detector 11, and a screw rod 32 is fixedly connected to the top of the high-position plate 31, and a Velcro 1 33 is installed on the top of the screw rod 32. Velcro 2 34 is symmetrically installed on the outer surface of the detector 11 and below the Velcro 1 33.

[0073] It should be noted that the screw rod 32 is a left-handed thread, the fitting end of Velcro 1 33 is located below it, and the fitting end of Velcro 2 34 is located above it. The fitting ends of Velcro 1 33 and Velcro 2 34 can fit each other, and the outer edge of the screw rod 32 is rounded.

[0074] Specifically, after completing the voltage and current detection work, the operator needs to properly store the current probe 12 and the voltage probe 13. At this time, the operator removes the used current probe 12 and the voltage probe 13 from the outer surface of the detector 11 and then starts the storage operation.

[0075] First, the wiring harness of the probe is wound around the screw rod 32 in an orderly manner, and the high-position disk 31 has a certain height. During the winding process, the two ends of the wiring harness will not be stuck due to contact with surrounding objects or being stuck in a narrow space, which effectively avoids the inconvenience of sorting caused by the jamming of the wiring harness and greatly improves the storage efficiency.

[0076] The upward threads of the screw rod 32 provide a natural guide for the operator. When winding the wire harness, the direction of the threads can guide the wire harness to be wound around the screw rod 32 in a uniform and orderly manner. The operator only needs to follow the guidance of the threads to easily and neatly wind the wire harness, which reduces the difficulty of operation during the winding process. In addition, the threads of the screw rod 32 are like a natural protective layer. When the wire harness is wound on it, the threads can disperse the impact force that may be applied by the outside world, reduce the probability of the wire harness being directly bumped, thereby effectively protecting the outer skin of the wire harness from being scratched, reducing the risk of short circuits and other faults caused by the exposure of internal wires, and ensuring the normal operation of the current probe 12 and the voltage probe 13.

[0077] When the wiring harness is wound, the operator uses the Velcro 1 33 on the top of the screw rod 32 and the Velcro 2 34 below the outer surface of the detector 11 to fix it, so as to prevent the wiring harness from loosening during storage.

[0078] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixing auxiliary device for voltage and current detection, the device is used on a detector (11), comprising a current probe (12) and a voltage probe (13) used on the detector (11), the current probe (12) being formed by two clamp handles (121) hingedly connected via a pivot (123), and a return spring (122) being fixedly connected between the two clamp handles (121), and a wire hole for placing a wire is provided on one side of the two clamp handles (121) close to each other, characterized in that: The clamp handle (121) is provided with a centering component (200) that cooperates with the clamp handle; the centering component (200) is used to achieve a three-point one-center centering clamping effect on the wire, and comprises two lateral clamping mechanisms (201), a forward clamping mechanism (202) and a propulsion shaft (28); the forward clamping mechanism (202) is installed between the two clamp handles (121), and one end of the forward clamping mechanism (202) close to the wire hole is fixedly connected to the propulsion shaft (28); the lateral clamping mechanism (201) is associated with the clamp handle (121) and is symmetrically arranged on both sides of the propulsion shaft (28); the lateral clamping mechanism (201) has elastic rotation capability and can rotate when subjected to the resistance of the propulsion shaft (28) to cooperate with the propulsion shaft (28) to clamp the wire.

2. A fixing auxiliary device for voltage and current detection according to claim 1, characterized in that: The centering assembly (200) further comprises two through slots (21) formed in the middle of the clamp handle (121) on a side away from the return spring (122), and the lateral clamping mechanism (201) is installed inside the through slots (21); the lateral clamping mechanism (201) comprises an auxiliary crankshaft (22) rotatably connected inside the through slot (21), a torsion spring (23) fixedly connected between the auxiliary crankshaft (22) and the inner wall of the through slot (21), and a rotating wheel (24) rotatably connected to the side of the auxiliary crankshaft (22) close to the pivot (123); the forward clamping mechanism The structure (202) comprises connecting rods (25) respectively rotatably connected to the sides of the two clamp handles (121) close to each other, a double-headed connecting shaft (26) arranged between the two clamp handles (121), and a telescopic rod (27) fixedly connected to the outer surface of the double-headed connecting shaft (26); the two connecting rods (25) are both rotatably connected to the outer surface of the double-headed connecting shaft (26), the outer surface of the telescopic rod (27) is fixedly connected to the propulsion shaft (28), and the surfaces of the pivot (123) and the two clamp handles (121) are provided with a movable cavity for the propulsion shaft (28) to pass through.

3. A fixing auxiliary device for voltage and current detection according to claim 2, characterized in that: The outer surface of each of the clamp handles (121) is symmetrically provided with a curved groove (29); a side of the auxiliary crankshaft (22) close to the curved groove (29) is symmetrically fixedly connected with a resistance rod (210); the interior of the clamp handle (121) is symmetrically provided with a support groove (211); the interior of the support groove (211) is symmetrically fixedly connected with a support spring (212); and the outer surface of each two support springs (212) is fixedly connected with a support plate (213); as the auxiliary crankshaft (22) moves, the auxiliary crankshaft (22) can drive the resistance rod (210) on its surface to slide into the interior of the curved groove (29); at the same time, the resistance rod (210) resists the support plate (213) and causes it to move synchronously.

4. A fixing auxiliary device for voltage and current detection according to claim 2, characterized in that: The side of the propulsion shaft (28) close to the auxiliary crankshaft (22) is disc-shaped, while the side of the disc-shaped propulsion shaft (28) close to the pivot (123) is triangular-shaped, and the side of the auxiliary crankshaft (22) away from the return spring (122) is also disc-shaped; as the propulsion shaft (28) moves, the rotating wheel (24) slides on the surface of the triangular propulsion shaft (28).

5. The fixing auxiliary device for voltage and current detection according to claim 1, characterized in that: The centering components (200) are all made of insulating materials.

6. A fixing auxiliary device for voltage and current detection according to claim 2, characterized in that: The spatial range of the through groove (21) is adapted to the maximum stroke movement trajectory of the auxiliary crankshaft (22).

7. A fixing auxiliary device for voltage and current detection according to any one of claims 1 to 6, characterized in that: A storage assembly (3) is arranged outside the detector (11), and the storage assembly (3) comprises a high-position plate (31) symmetrically mounted on the top of the detector (11), a screw rod (32) is fixedly connected to the top of the high-position plate (31), a Velcro 1 (33) is mounted on the top of the screw rod (32), and Velcro 2 (34) is symmetrically mounted on the outer surface of the detector (11) and below the Velcro 1 (33).

8. A fixing auxiliary device for voltage and current detection according to claim 7, characterized in that: The screw rod (32) is a left-hand thread.

9. A fixing auxiliary device for voltage and current detection according to claim 7, characterized in that: The fitting end of the first Velcro (33) is located below it, and the fitting end of the second Velcro (34) is located above it. The fitting ends of the first Velcro (33) and the second Velcro (34) can fit each other.

10. The fixing auxiliary device for voltage and current detection according to claim 7, characterized in that: The outer edge of the screw rod (32) is rounded.

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