Clip-on ammeter

Abstract

The invention relates to the technical field of electric power measurement, and discloses a clip-on ammeter, which comprises a measuring assembly, an insulating rod, a first anti-lock mechanism and a second anti-lock mechanism, and is characterized in that the measuring assembly comprises a clip-on ammeter body, a jaw, a clip head and a driving motor, the jaw is fixed at the upper part of the clip-on ammeter body, and a track is arranged in the clip-on ammeter body; the tong head is slidably arranged on the rail, and the driving motor is used for driving the tong head to move along the rail, so that the tong head gets close to or away from the jaw; the first anti-lock mechanism is arranged on the measuring assembly, the first anti-lock mechanism is connected with the tong head, and the tong head is forced to move in the vertical direction through the first anti-lock mechanism; the second anti-lock mechanism is arranged on the insulating rod, one end of the second anti-lock mechanism is detachably connected with the first anti-lock mechanism, and the second anti-lock mechanism can remotely control the tong head through the first anti-lock mechanism. The problem that measurement cannot be completed due to clamping stagnation or locking of the tong head is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power measurement, in particular to a clamp ammeter. Background Art

[0002] A clamp ammeter is a portable electrical instrument that can measure AC and DC current without disconnecting the circuit. It gets its name from its pliers-like shape. It perfectly solves the pain point that traditional ammeters must be connected in series to the circuit. It is one of the tools of electricians and equipment maintenance personnel.

[0003] At present, when traditional clamp-on ammeters are used for overhead line measurement, they have shortcomings in scenarios with dense cable wiring, low-voltage overhead line measurement scenarios, and clamp head operation: in areas with limited space and dense cable wiring, such as distribution boxes, cabinets, and cable trays, the use of traditional clamp meters faces huge challenges. Because multiple cables in these areas are entangled and closely arranged, the fixed-shaped clamp heads of traditional clamp meters often find it difficult to effectively clamp the target wires. Operators often need to spend a lot of time and energy to find the right clamping position in the complex cables. However, even so, it is often difficult to successfully complete the measurement task, resulting in extremely low measurement efficiency. In urban distribution networks, low-voltage Overhead line measurement is a common work scenario. Because overhead lines are often located at high altitudes and lack direct access, operators often need to use tools such as insulated ladders to approach the lines and then manually clamp the conductors to complete current measurements. However, most clamp-on ammeters currently on the market do not feature the ability to be used in conjunction with insulated rods, making them difficult to meet the actual needs of high-altitude work. Traditional clamp-on ammeters focus on optimizing measurement functions under normal operating conditions, but ignore reliability design in extreme scenarios. For example, in complex environments such as humidity, high temperatures, or strong electromagnetic interference, the mechanical components of the clamp meter are prone to sticking or locking due to material aging, lubrication failure, or external stress concentration. Such failures not only directly interrupt the measurement process but can also cause equipment damage, data loss, and even the risk of electric shock. Furthermore, the fault resolution mechanism of traditional clamp meters relies heavily on electronic control systems or external tools, resulting in response delays and high operational complexity, making them difficult to meet the stringent timeliness and safety requirements of emergency scenarios such as power repairs. Summary of the Invention

[0004] The purpose of the present invention is to provide a clamp ammeter that effectively solves the problem that the clamp head of a traditional clamp ammeter is easily stuck or locked in scenarios with dense cable wiring and overhead line measurement, resulting in the inability to complete measurement.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a clamp ammeter, which includes a measuring assembly, an insulating rod, a first anti-lock mechanism and a second anti-lock mechanism. The measuring assembly includes a clamp meter body, a jaw, a clamp head and a drive motor. The jaw is fixed to the upper part of the clamp meter body. A track extending in a vertical direction is provided inside the clamp meter body. The clamp head is slidably arranged on the track. The drive motor is arranged inside the clamp meter body. The drive motor is used to drive the clamp head to move along the track, thereby making the clamp head approach or move away from the jaw; the insulating rod is detachably mounted below the measuring assembly; the first anti-lock mechanism is arranged on the measuring assembly, the first anti-lock mechanism is connected to the clamp head, and the clamp head is forced to move in the vertical direction through the first anti-lock mechanism; the second anti-lock mechanism is arranged on the insulating rod, one end of the second anti-lock mechanism is detachably connected to the first anti-lock mechanism, and the second anti-lock mechanism can remotely control the clamp head through the first anti-lock mechanism.

[0006] In one embodiment, the first anti-lock braking mechanism includes a first connecting rod and a second connecting rod, the first connecting rod is arranged inside the clamp meter body, and one end of the first connecting rod is connected to the clamp head, the second connecting rod is arranged in a horizontal direction, one end of the second connecting rod is located inside the clamp meter body, and is hinged to the end of the first connecting rod away from the clamp head, and the second connecting rod is hinged to the clamp meter body to form a first hinge part, and the other end of the second connecting rod extends to the outside of the clamp meter body.

[0007] In one embodiment, the second anti-lock braking mechanism includes a third link and a fourth link, the third link is arranged outside the insulating rod, one end of the third link is hinged to the second link, the fourth link is hinged to the insulating rod to form a second hinge portion, one end of the fourth link extends to the outside of the insulating rod and is hinged to the third link, and the fourth link is used to drive the third link to move.

[0008] In one embodiment, the second anti-lock braking mechanism also includes a connecting rod and a movable sleeve. The movable sleeve is arranged at the end of the insulating rod away from the measuring assembly. The insulating rod is slidably arranged inside the movable sleeve. A pull ring is provided on one side of the movable sleeve. The connecting rod is arranged inside the insulating rod in a vertical direction. One end of the connecting rod is hinged to the fourth connecting rod, and the other end is connected to the pull ring. The pull ring is slidably arranged in the movable sleeve. The pull ring can move in the vertical direction inside the movable sleeve, driving the connecting rod to move in the vertical direction, and then driving the fourth connecting rod to rotate around the second hinge part.

[0009] In one embodiment, the measuring component further includes a range indicator area, which is disposed on the outer wall of the clamp meter body. The range indicator area is used to display the measuring function and range of the measuring component.

[0010] In one embodiment, the measuring component further includes a range rotary switch, which is disposed on the outer wall of the clamp meter body and electrically connected to the range indication area. The range rotary switch is used to adjust the measurement function and range of the range indication area.

[0011] In one embodiment, the measuring assembly further includes a spring locking mechanism, which is sleeved on the outer periphery of the clamp head and is used to provide a pressing force for the clamp head.

[0012] In one embodiment, the measuring component also includes a split display screen, which is detachably connected to the clamp meter body. A control button is provided on one side of the split display screen, and the control button is electrically connected to the drive motor. The control button includes a closing button and an opening button, which are respectively used to control the opening and closing of the drive motor.

[0013] In one embodiment, the split display screen is wirelessly connected to the drive motor, and the split display screen is used to remotely control the drive motor, thereby controlling the movement of the clamp head in the vertical direction.

[0014] In one embodiment, a wireless controller is provided on the split display screen. The wireless controller includes a control module, a communication module and a display module. The control module, the communication module and the display module are electrically connected in sequence. The control module is used to remotely trigger the opening and closing instructions through the touch interface. The communication module is used to receive the opening and closing instructions transmitted by the control module and transmit them to the drive motor. The drive motor performs forward and reverse operations according to the received instructions, drives the clamp head close to or away from the jaws, and thus completes the opening and closing operation of the measuring component. The display module is provided on the surface of the split display screen for displaying the cable measurement data.

[0015] Compared with the prior art, the advantageous effects of a clamp ammeter according to an embodiment of the present invention are as follows: when the clamp ammeter is operating normally, the driving motor can drive the clamp head to move in the vertical direction, so that the clamp head can flexibly penetrate the cable gap and stably clamp the target wire by adjusting the angle and closing it upwards. This non-rotating clamping method avoids the operational obstacles caused by space limitations, greatly improves the measurement efficiency and success rate, and reduces the risk of accidentally touching other lines, and is suitable for scenes with dense cable wiring; the insulating rod can be detachably installed under the measuring component. When it is necessary to measure the current of a wire at a high or distant place, the insulating rod can be installed to achieve long-distance measurement, which greatly expands the measurement range; the setting of the first anti-lock mechanism is for the clamp The ammeter provides safety protection. When the drive motor fails, causing the clamp head to become stuck or locked and unable to move normally, the first anti-lock mechanism can take effect in time and replace the drive motor to drive the clamp head, ensuring that the clamp head can still move normally, avoiding the clamp head being stuck on the measured conductor due to drive motor failure, causing a safety accident; the second anti-lock mechanism is set on the insulating rod, and one end is detachably connected to the first anti-lock mechanism. The operator can remotely control the first anti-lock mechanism through the second anti-lock mechanism, and then control the clamp head. The operator does not need to directly contact the measuring component, but only needs to operate the second anti-lock mechanism from a distance to avoid the problem of the clamp head becoming stuck or locked in the overhead line measurement scenario, which makes it impossible to complete the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a clamp ammeter according to an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of a measuring component of a clamp ammeter according to an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the first anti-lock braking mechanism in the clamp ammeter according to an embodiment of the present invention.

[0019] Figure 4 4 is a cross-sectional view of a clamp ammeter according to an embodiment of the present invention.

[0020] In the figure, 10, measuring assembly; 11, clamp meter body; 12, jaws; 13, clamp head; 14, spring locking mechanism; 15, range indication area; 16, range rotary switch; 17, split display screen; 18, drive motor; 20. First anti-lock braking mechanism; 21. First connecting rod; 22. Second connecting rod; 221. First hinge; 30. Second anti-lock braking mechanism; 31. Third connecting rod; 32. Fourth connecting rod; 321. Second hinged portion; 33. Connecting rod; 34. Active sleeve; 341. Pull ring; 40. Insulating rod. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, it may be internal communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the description of the present invention, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In describing the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being described. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0025] like Figures 1 to 4As shown, an embodiment of the present invention preferably provides a clamp ammeter, which includes a measuring assembly 10, an insulating rod 40, a first anti-lock mechanism 20 and a second anti-lock mechanism 30. The measuring assembly 10 includes a clamp meter body 11, a jaw 12, a clamp head 13 and a drive motor 18. The jaw 12 is fixed to the upper part of the clamp meter body 11. A track extending in a vertical direction is opened inside the clamp meter body 11. The clamp head 13 is slidably set on the track. The drive motor 18 is set inside the clamp meter body 11. The drive motor 18 is used to drive the clamp head 13 to move along the track. , thereby making the pliers head 13 move closer to or away from the jaws 12; the insulating rod 40 is detachably mounted on the bottom of the measuring assembly 10; the first anti-lock mechanism 20 is provided on the measuring assembly 10, and the first anti-lock mechanism 20 is connected to the pliers head 13, and the pliers head 13 is forced to move in the vertical direction through the first anti-lock mechanism 20; the second anti-lock mechanism 30 is provided on the insulating rod 40, and one end of the second anti-lock mechanism 30 is detachably connected to the first anti-lock mechanism 20, and the second anti-lock mechanism 30 can remotely control the pliers head 13 through the first anti-lock mechanism 20.

[0026] Based on the above technical features, when the clamp ammeter in the embodiment of the present invention is working normally, the driving motor 18 can drive the clamp head 13 to move in the vertical direction, so that the clamp head 13 can flexibly penetrate the cable gap and complete the stable clamping of the target wire by adjusting the angle and closing it upward. This non-rotating clamping method avoids the operational obstacles caused by space limitations, greatly improves the measurement efficiency and success rate, and reduces the risk of accidentally touching other lines. It is suitable for scenes with dense cable wiring; the insulating rod 40 can be detachably installed under the measuring component 10. When it is necessary to measure the current of a wire at a high or distant place, the insulating rod 40 can be installed to achieve long-distance measurement, which greatly expands the measurement range; the setting of the first anti-lock braking mechanism 20 provides safety protection for the clamp ammeter. When the motor 18 fails, causing the clamp head 13 to get stuck or locked and unable to move normally, the first anti-lock mechanism 20 can play a role in time, replacing the drive motor 18 to drive the clamp head 13, ensuring that the clamp head 13 can still move normally, and avoiding the clamp head 13 getting stuck on the measured wire due to the failure of the drive motor 18, causing a safety accident; the second anti-lock mechanism 30 is arranged on the insulating rod 40, and one end is detachably connected to the first anti-lock mechanism 20. The operator can remotely control the first anti-lock mechanism 20 through the second anti-lock mechanism 30, and then control the clamp head 13. The operator does not need to directly contact the measuring component 10, but only needs to operate the second anti-lock mechanism 30 from a distance, so as to avoid the clamp head 13 getting stuck or locked in the overhead line measurement scenario, resulting in the inability to complete the measurement.

[0027] As some embodiments of the present invention, Figures 3 and 4As shown, the first anti-lock mechanism 20 includes a first connecting rod 21 and a second connecting rod 22, the first connecting rod 21 is arranged inside the clamp body 11, and one end of the first connecting rod 21 is connected with the clamp head 13, the second connecting rod 22 is arranged in a horizontal direction, one end of the second connecting rod 22 is located inside the clamp body 11 and is hinged with the end of the first connecting rod 21 away from the clamp head 13, and the second connecting rod 22 is hinged with the clamp body 11 to form a first hinge part 221, and the other end of the second connecting rod 22 extends to the outside of the clamp body 11. By arranging the first connecting rod 21 and the second connecting rod 22, when the clamp head 13 is stuck or locked and cannot move normally, the first anti-lock mechanism 20 needs to work, by pulling one end of the second connecting rod 22 extending to the outside of the clamp body 11, since the second connecting rod 22 is hinged with the clamp body 11 to form the first hinge part 221, and the other end of the second connecting rod 22 is hinged with the first connecting rod 21, according to the principle of lever, the action of force will make the second connecting rod 22 rotate around the first hinge part 221, and then drive the first connecting rod 21 to move inside the clamp body 11, and the first connecting rod 21 is connected with the clamp head 13, thereby converting the horizontal pulling force into the power of the clamp head 13 moving in the vertical direction, realizing the action of the clamp head 13 approaching or moving away from the clamp jaw 12, the whole transmission process is simple and efficient, and the clamp head 13 can act in time.

[0028] As some embodiments of the present application, as Figures 3 and 4 As shown, the second anti-lock mechanism 30 includes a third connecting rod 31 and a fourth connecting rod 32, the third connecting rod 31 is arranged outside the insulating rod 40, one end of the third connecting rod 31 is hinged with the second connecting rod 22, the fourth connecting rod 32 is hinged with the insulating rod 40 to form a second hinge part 321, one end of the fourth connecting rod 32 extends to the outside of the insulating rod 40 and is hinged with the third connecting rod 31, and the fourth connecting rod 32 is used to drive the third connecting rod 31 to move. By arranging the third connecting rod 31 and the fourth connecting rod 32, the fourth connecting rod 32 is hinged with the insulating rod 40 to form the second hinge part 321, when the operator applies a force to the fourth connecting rod 32 outside the insulating rod 40, the fourth connecting rod 32 will rotate around the second hinge part 321, since one end of the fourth connecting rod 32 is hinged with the third connecting rod 31, the rotation will drive the third connecting rod 31 to move, and the third connecting rod 31 is hinged with the second connecting rod 22 in the first anti-lock mechanism 20, thereby transmitting the motion and force to the first anti-lock mechanism 20, and finally driving the clamp head 13 to act, this multi-connecting-rod transmission mode can accurately transmit the force applied by the operator at one end of the insulating rod 40 to the clamp head 13, and realize the operation of remotely controlling the clamp head 13 to approach or move away from the clamp jaw 12.

[0029] As some embodiments of the present application, as Figures 3 and 4As shown, the second anti-lock mechanism 30 also includes a connecting rod 33 and a movable sleeve 34. The movable sleeve 34 is arranged at the end of the insulating rod 40 away from the measuring assembly 10. The insulating rod 40 is slidably arranged inside the movable sleeve 34. A pull ring 341 is provided on one side of the movable sleeve 34. The connecting rod 33 is arranged inside the insulating rod 40 in the vertical direction. One end of the connecting rod 33 is hinged to the fourth connecting rod 32, and the other end is rotatably connected to the pull ring 341. The pull ring 341 is slidably arranged on the movable sleeve 34. The pull ring 341 can move in the vertical direction inside the movable sleeve 34, driving the connecting rod 33 to move in the vertical direction, and then driving the fourth connecting rod 32 to rotate around the second hinge part 321. The connecting rod 33 is arranged inside the insulating rod 40 in the vertical direction, and the pull ring 341 drives the connecting rod 33 to move vertically. The operator only needs to pull the pull ring 341 to control the rotation of the fourth connecting rod 32 through the connecting rod 33, thereby driving the third connecting rod 31, the second connecting rod 22 and the first connecting rod 21 to rotate, and finally controlling the movement of the clamp head 13. The pull ring 341 is located on one side of the movable sleeve 34, and the movable sleeve 34 is located at the end of the insulating rod away from the measuring assembly. The operator can operate in a safe position away from the measuring assembly 10 and the live wires. This remote operation method can effectively prevent the operator from directly contacting the live parts, greatly reducing the risk of electric shock, and providing more reliable safety protection for the operator.

[0030] As some embodiments of the present invention, Figures 1 to 2 As shown, the measuring assembly 10 also includes a range indicator 15, which is disposed on the outer wall of the clamp meter body 11. This area is used to display the measuring function and range of the measuring assembly 10. During the measurement process, the range indicator 15 displays the current measurement range in real time. This allows the operator to understand the measurement status at any time, ensuring that the measurement process is carried out within the appropriate range. If the current range is found to be inappropriate, the operator can adjust it in a timely manner.

[0031] As some embodiments of the present invention, Figures 1 to 2 As shown, the measuring assembly 10 also includes a range rotary switch 16, which is disposed on the outer wall of the clamp meter body 11 and is electrically connected to the range indicator area 15. The range rotary switch 16 is used to adjust the measurement function and range of the range indicator area 15. The operator can use the range rotary switch 16 to adjust the measurement function and range of the range indicator area 15 according to actual needs, ensuring the accuracy and reliability of measurement results.

[0032] As some embodiments of the present invention, Figures 3 and 4As shown, the measuring assembly 10 further includes a spring locking mechanism 14, which is sleeved around the outer periphery of the clamp head 13 and is used to provide a clamping force to the clamp head 13. The clamping force provided by the spring locking mechanism 14 ensures that the clamp head 13 is always tightly fitted to the jaws 12, ensuring good contact in the measurement circuit when the measuring assembly 10 clamps the conductor, reducing contact resistance and making the measurement results more accurate and reliable.

[0033] As some embodiments of the present invention, Figure 2 As shown, the measurement assembly 10 also includes a split display screen 17, which is detachably connected to the clamp meter body 11. A control button is provided on one side of the split display screen 17, which is electrically connected to the drive motor 18. The control button includes a close button and an open button, which are respectively used to control the on and off of the drive motor 18. By making the split display screen 17 detachable from the clamp meter body 11, the operator can place the split display screen 17 in a position that is most convenient for observation based on the actual measurement scenario and their own needs. Furthermore, the control button is provided on the clamp meter body 11, allowing the operator to directly control the operation of the drive motor 18, thereby controlling the telescopic movement of the clamp head 13 in the vertical direction.

[0034] As some embodiments of the present invention, Figure 2 As shown, the split display 17 is wirelessly connected to the drive motor 18. The split display 17 is used to remotely control the drive motor 18, thereby controlling the vertical movement of the clamp head 13. The wireless communication connection allows the operator to remotely control the clamp head 13 from a safe location away from the drive motor 18, without directly contacting the device. The operator can control the vertical extension and retraction of the clamp head 13, thereby controlling the opening and closing of the drive motor 18.

[0035] As some embodiments of the present invention, Figure 2As shown, a wireless controller is provided on the split display screen 17. The wireless controller includes a control module, a communication module, and a display module, which are electrically connected in sequence. The control module is used to remotely trigger opening and closing instructions via a touch interface. The communication module is used to receive the opening and closing instructions transmitted by the control module and transmit them to the drive motor 18. The drive motor 18 performs forward and reverse operations according to the received instructions, driving the clamp head 13 toward or away from the jaws 12, thereby completing the opening and closing operation of the measuring assembly 10. The display module is provided on the surface of the split display screen 17 and is used to display cable measurement data. The wireless controller is provided on the split display screen 17, and its control module is equipped with a touch interface. The operator does not need to directly contact the measuring assembly 10, but can remotely trigger the opening and closing instructions of the measuring assembly 10 by simply touching the display screen. This operation method eliminates the operational difficulties caused by space limitations or inconvenient equipment location in traditional measurement. It is particularly suitable for measurement tasks in narrow spaces, high-altitude operations, or dangerous environments, greatly improving the flexibility and convenience of operation. At the same time, the display module is arranged on the surface of the split display screen 17, which can display the cable measurement data in real time. The operator can view the measurement data through the display screen at any time and grasp the measurement status in time.

[0036] In summary, the embodiment of the present invention provides a clamp ammeter, which has the following beneficial effects compared with the prior art: when the clamp ammeter is working normally, the drive motor 18 can drive the clamp head 13 to move in the vertical direction, so that the clamp head 13 can flexibly penetrate the cable gap and complete the stable clamping of the target wire by adjusting the angle and closing it upward. This non-rotating clamping method avoids the operational obstacles caused by space limitation, greatly improves the measurement efficiency and success rate, and reduces the risk of accidentally touching other lines. It is suitable for scenes with dense cable wiring; the insulating rod 40 can be detachably installed under the measuring component 10. When it is necessary to measure the current of a wire at a high place or far away, the insulating rod 40 can be installed to achieve long-distance measurement, which greatly expands the measurement range; the setting of the first anti-lock braking mechanism 20 provides a safety for the clamp ammeter. Full protection: when the drive motor 18 fails, causing the clamp head 13 to get stuck or locked and unable to move normally, the first anti-lock mechanism 20 can play a role in time, replacing the drive motor 18 to drive the clamp head 13, ensuring that the clamp head 13 can still move normally, avoiding the clamp head 13 getting stuck on the measured wire due to the failure of the drive motor 18, causing a safety accident; the second anti-lock mechanism 30 is arranged on the insulating rod 40, and one end is detachably connected to the first anti-lock mechanism 20. The operator can remotely control the first anti-lock mechanism 20 through the second anti-lock mechanism 30, and then control the clamp head 13. The operator does not need to directly contact the measuring component 10, but only needs to operate the second anti-lock mechanism 30 from a distance to avoid the clamp head 13 getting stuck or locked in the overhead line measurement scenario, resulting in the inability to complete the measurement.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A clamp ammeter, characterized in that: include: Measuring assembly, insulating rod, first anti-lock braking mechanism and second anti-lock braking mechanism, The measuring assembly includes a clamp meter body, a jaw, a clamp head, and a drive motor. The jaw is fixed to the upper portion of the clamp meter body. A track extending in a vertical direction is provided inside the clamp meter body. The clamp head is slidably arranged on the track. The drive motor is arranged inside the clamp meter body and is used to drive the clamp head to move along the track, thereby moving the clamp head closer to or away from the jaw. The insulating rod is detachably mounted below the measuring assembly; The first anti-lock mechanism is provided on the measuring assembly, and is connected to the clamp head, and forces the clamp head to move in a vertical direction through the first anti-lock mechanism; The second anti-lock mechanism is provided on the insulating rod, one end of the second anti-lock mechanism is detachably connected to the first anti-lock mechanism, and the second anti-lock mechanism can remotely control the pliers head through the first anti-lock mechanism.

2. The clamp ammeter according to claim 1, wherein: The first anti-lock mechanism includes a first connecting rod and a second connecting rod. The first connecting rod is arranged inside the clamp meter body, and one end of the first connecting rod is connected to the clamp head. The second connecting rod is arranged in a horizontal direction. One end of the second connecting rod is located inside the clamp meter body and is hinged to one end of the first connecting rod away from the clamp head. The second connecting rod is hinged to the clamp meter body to form a first hinge part, and the other end of the second connecting rod extends to the outside of the clamp meter body.

3. The clamp ammeter according to claim 2, wherein: The second anti-lock braking mechanism includes a third link and a fourth link. The third link is arranged outside the insulating rod. One end of the third link is hinged to the second link. The fourth link is hinged to the insulating rod to form a second hinge part. One end of the fourth link extends to the outside of the insulating rod and is hinged to the third link. The fourth link is used to drive the third link to move.

4. The clamp ammeter according to claim 3, wherein: The second anti-lock mechanism also includes a connecting rod and a movable sleeve. The movable sleeve is arranged at the end of the insulating rod away from the measuring assembly. The insulating rod is slidably arranged inside the movable sleeve. A pull ring is provided on one side of the movable sleeve. The connecting rod is arranged inside the insulating rod in a vertical direction. One end of the connecting rod is hinged to the fourth connecting rod, and the other end is connected to the pull ring. The pull ring is slidably arranged on the movable sleeve. The pull ring can move in the vertical direction inside the movable sleeve, driving the connecting rod to move in the vertical direction, and then driving the fourth connecting rod to rotate around the second hinge part.

5. The clamp ammeter according to claim 1, wherein: The measuring component further includes a range indication area, which is arranged on the outer wall of the clamp meter body and is used to display the measuring function and range of the measuring component.

6. The clamp ammeter according to claim 5, characterized in that: The measuring assembly further includes a range rotary switch, which is disposed on the outer wall of the clamp meter body and electrically connected to the range indication area. The range rotary switch is used to adjust the measuring function and range of the range indication area.

7. The clamp ammeter according to claim 1, wherein: The measuring assembly further comprises a spring locking mechanism, which is sleeved on the outer periphery of the pliers head and is used to provide a pressing force for the pliers head.

8. The clamp ammeter according to claim 1, wherein: The measuring component also includes a split display screen, which is detachably connected to the clamp meter body. A control button is provided on one side of the split display screen, and the control button is electrically connected to the drive motor. The control button includes a closing button and an opening button, which are respectively used to control the opening and closing of the drive motor.

9. The clamp ammeter according to claim 8, wherein: The split display screen is wirelessly connected to the driving motor, and the split display screen is used to remotely control the driving motor, thereby controlling the clamp head to move in a vertical direction.

10. The clamp ammeter according to claim 9, wherein: A wireless controller is provided on the split display screen, and the wireless controller includes a control module, a communication module and a display module. The control module, the communication module and the display module are electrically connected in sequence. The control module is used to remotely trigger the opening and closing instructions through the touch interface. The communication module is used to receive the opening and closing instructions transmitted by the control module and transmit them to the drive motor. The drive motor performs forward and reverse operations according to the received instructions, drives the clamp head close to or away from the jaws, and thus completes the opening and closing operation of the measuring component. The display module is provided on the surface of the split display screen, and is used to display the cable measurement data.

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