Current probe

Abstract

The utility model provides a current probe, including mounting frame body, first magnetic core, slide switch subassembly and second magnetic core, slide switch subassembly includes slide portion and reset portion, the reset portion is equipped with center pole, reset spring and spring stopper, the spring stopper is detachably installed in the second mounting portion and is equipped with slide through hole, the slide through hole is equipped with the reset spring, and the reset spring is equipped with the reset spring and the spring stopper. One end of the center rod is detachably installed on the sliding part, the other end of the center rod is contained in the sliding through hole, the center rod is sleeved with the reset spring, and the two ends of the reset spring abut against the sliding part and the spring limiting block respectively. According to the current probe provided by the utility model, the first magnetic core and the second magnetic core are separated and closed by arranging the sliding switch assembly, and the central rod, the reset spring and the spring limiting block are matched with the sliding part, so that the sliding part is convenient to disassemble and assemble.

Description

[Technical Field]

[0001] This utility model relates to the field of electronic measurement technology, and in particular to a current probe. [Background Technology]

[0002] Current probes are used to measure the magnitude of current in a conductor. Common types include magnetic core current probes and clamp-on current probes. By opening the jaws of the current clamp to surround the conductor, a magnetic field loop is formed, allowing the measurement of the current flowing through the conductor. To facilitate the insertion of the conductor and without affecting the magnetic field loop, the current probe needs to have two magnetic cores that can be separated and closed. The conductor is inserted when the cores are separated, and the current is detected when the cores are closed.

[0003] However, the current probes in the existing technology are separate and the closed control structure is complex. Once a fault occurs, it is difficult to disassemble and reassemble. Moreover, many components are integrated, and long-term control can easily cause physical damage, making direct replacement impossible, resulting in high overall usage and maintenance costs. [Utility Model Content]

[0004] This invention provides a current probe to solve the problem of inconvenient disassembly and assembly.

[0005] This utility model provides a current probe, including a mounting frame, a first magnetic core, a sliding switch assembly, and a second magnetic core. The mounting frame includes a first mounting portion and a second mounting portion. The first magnetic core is mounted on the first mounting portion, and the sliding switch assembly is mounted on the second mounting portion and slides relative to the second mounting portion. The second magnetic core is mounted on one end of the sliding switch assembly. The sliding switch assembly drives the second magnetic core to slide and controls the second magnetic core to align or separate from the first magnetic core. The sliding switch assembly includes a sliding portion and a reset portion. The sliding portion is aligned with the mounting frame and has a mounting groove at one end near the first mounting portion. The second magnetic core is disposed in the mounting groove. The reset portion has a central rod, a reset spring, and a spring limiting block. The spring limiting block is detachably mounted on the side of the second mounting portion away from the first mounting portion and has a sliding through hole inside. One end of the central rod is detachably mounted on the sliding portion, and the other end is received in the sliding through hole. The reset spring is sleeved on the central rod, and both ends abut against the sliding portion and the spring limiting block, respectively.

[0006] Compared with the prior art, the current probe provided by this utility model realizes the separation and closure of the first magnetic core and the second magnetic core by setting a sliding switch assembly including the sliding part and the reset part. The reset part cooperates with the sliding part through the central rod, the reset spring, and the spring limiting block, which not only realizes the opening and closing required for detection but also facilitates the installation of the sliding part onto the mounting frame. The detachable installation of the central rod provides space for the disassembly and assembly of the sliding part.

[0007] Moreover, the spring limiting block with the sliding through hole only restricts the position of the reset spring, providing energy storage and reset support for the reset spring, without affecting the sliding of the central rod. During the compression and recovery process of the reset spring, the central rod is not subjected to the combined action of pressure from both ends, thereby improving the life of the central rod.

[0008] Furthermore, the reset spring is sleeved on the central rod, which ensures that the compression and recovery process of the reset spring is smooth and can only change along the direction of the central rod, without causing twisting and damage.

[0009] The current probe provided by this utility model has a simple overall structure, is easy to disassemble and assemble, and the components cooperate with each other, making it less prone to damage, effectively improving the service life of the current probe and reducing costs. [Attached Image Description]

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0011] Figure 1 This is a three-dimensional structural diagram of the current probe provided by this utility model;

[0012] Figure 2 This is an exploded view of the three-dimensional structure of the current probe provided by this utility model;

[0013] Figure 3 This is a cross-sectional view of the current probe provided by this utility model;

[0014] Figure 4 yes Figure 2 The diagram shows the connection status between the mounting frame and the sliding switch assembly.

[0015] Figure 5 yes Figure 2 The diagram shown is a three-dimensional structural schematic of the mounting frame from another perspective.

[0016] Figure 6 yes Figure 2 A three-dimensional structural diagram of the sliding part from another perspective;

[0017] Figure 7 yes Figure 2 The diagram shows the connection status of the sliding part, locking part, and manual part.

[0018] Figure 8 yes Figure 2 An exploded and enlarged three-dimensional structural view of the sliding part, locking part, and manual part shown;

[0019] Figure 9 This is a schematic diagram showing the relative positions of the mounting frame and the sliding switch assembly in the first working state of the current probe provided by this utility model;

[0020] Figure 10 This is a schematic diagram showing the relative positions of the mounting bracket and the sliding switch assembly in the second working state of the current probe provided by this utility model; and

[0021] Figure 11 This is a schematic diagram showing the relative positions of the mounting frame and the sliding switch assembly in the third working state of the current probe provided by this utility model.

Detailed Implementation Methods

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0024] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] Please also refer to Figures 1 to 5 A current probe 100 includes a mounting frame 1, a first magnetic core 3, a sliding switch assembly 5, a second magnetic core 7, and a cover 9. The mounting frame 1 includes a first mounting portion 11 and a second mounting portion 13. The first magnetic core 3 is mounted on the first mounting portion 11, and the sliding switch assembly 5 is mounted on the second mounting portion 13 and slides relative to the second mounting portion 13. The second magnetic core 7 is mounted on one end of the sliding switch assembly 5. The sliding switch assembly 5 drives the second magnetic core 7 to slide, controlling the alignment or separation of the second magnetic core 7 from the first magnetic core 3. The current probe 100 achieves relative sliding between the first magnetic core 3 and the second magnetic core 7 through the sliding switch assembly 5, providing a simple and flexible control method.

[0026] Please refer to the following at the same time. Figure 6 The sliding switch assembly 5 includes a sliding part 51 and a reset part 53. The sliding part 51 is aligned with the mounting bracket 1 and has a mounting groove 501 at one end near the first mounting part 11, where the second magnetic core 7 is disposed. The reset part 53 has a central rod 531, a reset spring 533, and a spring limiting block 535. The spring limiting block 535 is detachably mounted on the side of the second mounting part 13 away from the first mounting part 11 and has a sliding through hole 503 inside. One end of the central rod 531 is detachably mounted to the sliding part 51, and the other end is received in the sliding through hole 503. The reset spring 533 is sleeved on the central rod 531, and its two ends abut against the sliding part 51 and the spring limiting block 535, respectively.

[0027] It should be noted that the spring limiting block 535 and the center rod 531 described in this application explicitly restrict the installation method, unlike integrated or fixed non-removable methods. The detachable installation includes methods such as snap-fit ​​connection, hinge, threaded connection, or adhesive bonding. The sliding switch assembly 5 detachably installs the spring limiting block 535 to the second mounting part 13, and one end of the center rod 531 is detachably installed to the sliding part 51, so that the sliding switch assembly 5 can control the opening and closing required for detection, while facilitating the installation of the sliding part 51 onto the mounting frame 1.

[0028] The spring limiting block 535 has a sliding through hole 503, through which only the central rod 531 can pass. The return spring 533 abuts against the spring limiting block 535 and cannot enter the sliding through hole 503. This arrangement ensures that the return spring 533 is supported for energy storage and reset without affecting the sliding of the central rod 531. During the compression and recovery process of the return spring 533, the central rod 531 is not subjected to the combined pressure from both ends, thereby improving the lifespan of the central rod 531. Similarly, the installation method of the return spring 533 being fitted onto the central rod 531 facilitates installation, and the compression and recovery process of the return spring 533 is smooth, changing only along the direction of the central rod 531 without twisting, thus reducing the risk of damage to the return spring 533.

[0029] In this embodiment, the central rod 531 is set as a metal rod, which ensures that it has a certain rigidity during the force transmission process, while making the compression and recovery process of the return spring 533 smoother. The sliding of the central rod 531 in the sliding through hole 503 is also smoother, so that the user can control the opening and closing with a smaller force.

[0030] The cover 9 and the mounting frame 1 cooperate to form a receiving space 901, in which the reset part 53 and part of the sliding part 51 are received. In this embodiment, the mounting frame 1 is configured with a "Z"-shaped structure, with the first mounting part 11 and the second mounting part 13 positioned opposite each other and staggered. The sliding switch assembly 5 passes through the middle position and is mounted on the second mounting part 13, and can slide relative to it. The sliding switch assembly 5 can only move laterally; the other two spatial directions are restricted by the mounting frame 1. After installation, the cover 9 is connected to the mounting frame 1, and the resulting receiving space 901 protects the reset part 53 and part of the sliding part 51, and also facilitates manual operation by the user.

[0031] This installation method ensures that the sliding switch assembly 5 can slide along a predetermined path without detaching from the mounting frame 1, resulting in a stable and reliable overall structure. The detachable installation method of the spring limit block 535 and the center rod 531 also aims to achieve structural stability while facilitating disassembly, assembly, use, and maintenance.

[0032] The mounting frame 1 has a first sliding groove 101, and the sliding part 51 has a second sliding groove 502 opposite to the first sliding groove 101. The length of the second sliding groove 502 is shorter than that of the first sliding groove 101. The sliding switch assembly 5 also includes a manual part 55, which passes through the first sliding groove 101 and the second sliding groove 502. The manual part 55 does not need to be directly connected to the sliding part 51 and the reset part 53, but controls the sliding part 51 and the reset part 53 by setting the first sliding groove 101 and the second sliding groove 502. The design is simple and ingenious. When it is necessary to control the separation of the second magnetic core 7 from the first magnetic core 3, the manual part 55 is controlled to move away from the first magnetic core 3. Since the length of the second slide groove 502 is less than that of the first slide groove 101, the manual part 55 can still drive the sliding part 51 to continue moving after moving to one end of the second slide groove 502. At this time, the sliding part 51 drives the center rod 531 to move towards the spring limiting block 535, thereby compressing the return spring 533, until the manual part 55 reaches one end of the first slide groove 101. At this time, the ends of the first slide groove 101 and the second slide groove 502 are at the same position, and the sliding part 51 drives the second magnetic core 7 to leave the first magnetic core 3. After the user releases the manual part 55, the return spring 533 returns to its original position, pushing the sliding part 51 to move. The sliding part 51 drives the manual part 55 and the second magnetic core 7 to move towards the first magnetic core 3, until they return to the aligned position of the first magnetic core 3 and the second magnetic core 7.

[0033] Please continue to refer to the following: Figure 7 and Figure 8To ensure a tighter alignment between the first magnetic core 3 and the second magnetic core 7, the sliding switch assembly 5 further includes a locking part 57. The locking part 57 includes a spring piece 571 and a locking tongue 573. The spring piece 571 is positioned between the second magnetic core 7 and the sliding part 51. One end of the locking tongue 573 is detachably mounted to the manual part 55, and the other end is received between the spring piece 571 and the sliding part 51. Both the locking tongue 573 and the spring piece 571 have protruding structures 575. When the first magnetic core 3 and the second magnetic core 7 are in the aligned position, a certain gap may exist between them, causing a larger error in the current probe 100 when detecting conductor current. The second magnetic core 7 is disposed in the mounting groove 501. The locking part 57 provides the spring piece 571 and the locking tongue 573 between the second magnetic core 7 and the sliding part 51. The manual part 55 controls the movement of the locking tongue 573 relative to the spring piece 571. The protruding structure 575 of the locking tongue 573 and / or the spring piece 571 can squeeze the space between the second magnetic core 7 and the sliding part 51, thereby forming a certain pressure and pushing the second magnetic core 7 to align more closely with the first magnetic core 3, thereby reducing measurement error.

[0034] In this embodiment, both the locking tongue 573 and the spring piece 571 are provided with opposing protrusions 575. When the locking tongue 573 moves to the point where the two protrusions 575 overlap, a better locking function is achieved. Due to the length design of the first slide groove 101 and the second slide groove 502, the manual part 55 can still be pushed towards the first magnetic core 3 after the sliding part 51 reaches the preset position, thereby moving the locking tongue 573 independently. The locking part 57 can achieve locking simply by cooperating with the locking tongue 573, the spring piece 571, and the manual part 55, resulting in a simple structure and low cost.

[0035] The sliding switch assembly 5 also includes a blocking part 59, which is attached to the mounting groove 501 and sandwiched between the sliding part 51 and the locking part 57. During use, the locking tongue 573 moves repeatedly between the spring 571 and the sliding part 51, easily causing wear on the sliding part 51. The blocking part 59 effectively protects the top wall of the sliding part 51, increasing the service life of the current probe 100. In this embodiment, the blocking part 59 is made of metal, ensuring hardness while ensuring smooth movement of the locking tongue 573.

[0036] The sliding part 51 includes an abutment wall 511 located on the side of the mounting groove 501 near the reset part 53. A connector 513 is provided on the abutment wall 511 for detachably mounting the center rod 531. By providing the abutment wall 511, the sliding part 51 forms the mounting groove 501 while simultaneously providing a position for the installation of the center rod 531, saving space and materials. Furthermore, the force transmission between the sliding part 51 and the center rod 531 is achieved through the abutment wall 511, ensuring force balance and protecting the sliding part 51 from damage. Moreover, to facilitate the installation of the center rod 531, the connector 513 on the abutment wall 511 provides axial positioning for the center rod 531, preventing misalignment between the center rod 531 and the axis of the sliding through hole 503 of the spring limiting block 535 during installation, which could lead to damage to the center rod 531.

[0037] The sliding part 51 has a through hole 503 on the abutment wall 511, and the locking tongue 573 passes through the through hole 503. While providing smooth force transmission to the central rod 531, the sliding part 51 also facilitates the installation and movement of the locking tongue 573 by providing the through hole 503, effectively saving space in the sliding part 51. Furthermore, the through hole 503, in conjunction with the manual part 55, can limit the sliding position of the locking tongue 573 and provide force support.

[0038] The manual part 55 includes a slider 551 and a protrusion 553. The slider 551 has a U-shaped structure and a receiving groove 5501 for accommodating the reset part 53 and the locking tongue 573. The protrusion 553 protrudes outward from the side of the slider 551 aligned with the sliding part 51. The slider 551, aligned with the sliding part 51, has a width greater than the width of the second slide groove 502, and the protrusion 553 penetrates through the second slide groove 502 and the first slide groove 101. By pushing the protrusion 553, the slider 551 can be controlled to move along the direction of the first slide groove 101 and the second slide groove 502. The slider 551 is configured in a U-shape, allowing both the locking tongue 573 and the reset part 53 to be housed within it, thus making efficient use of space. In this embodiment, the manual part 55 also has a switch cover 555, which is connected to the protrusion 553, making the manual part 55 aesthetically pleasing, easy to operate without injury to the hands, and convenient to push.

[0039] In this embodiment, the slider 551 and the protrusion 553 can be separately or integrated. The manual part 55 is provided with a fastener 557, such as a screw or a small bolt. The fastener 557 passes through the latch 573, the slider 551, and the protrusion 553 and connects to the switch cover 555. The slider 551, the protrusion 553, the switch cover 555, and the latch 573 are relatively fixed in position by a single screw, making the connection simple, secure, and easy to disassemble. Essentially, the manual part 55 is connected to the latch 573 by only one screw and can slide along the first slide groove 101 and the second slide groove 502, controlling the movement of the latch 573 to lock the second magnetic core 7 toward the first magnetic core 3.

[0040] The second mounting part 13 is provided with a sliding limiting structure 131. The spring limiting block 535 is disposed on the sliding limiting structure 131 to fix the spring limiting block 535 and limit the sliding distance of the sliding part 51. When the sliding part 51 slides, when the second magnetic core 7 and the first magnetic core 3 reach the completely separated position, the sliding part 51 abuts against the sliding limiting structure 131 and cannot continue to slide. The manual part 55 will not hit one end of the first slide groove 101, and the compression of the reset spring 533 also reaches a certain safe length, but excessive compression will cause damage. In this embodiment, the sliding limiting structure 131 is integrated with the mounting frame 1, which has better strength. At the same time, it provides a detachable mounting position for the spring limiting block 535, which facilitates the disassembly and assembly of the reset part 53. The overall volume of the sliding limiting structure 131 is small. It only needs to limit the sliding part 51 to a certain extent, which requires little space and does not affect the disassembly and assembly of the sliding switch assembly 5.

[0041] Please continue reading. Figure 5 and Figure 6 The mounting frame 1 includes a first protruding ridge 15 and a second protruding ridge 17 arranged perpendicularly to each other, and the sliding part 51 has a third protruding ridge 515 opposite to the first protruding ridge 15. By providing the first protruding ridge 15 and cooperating with the third protruding ridge 515, the mounting frame 1 can limit and protect the movement of the sliding part 51. When the return spring 533 moves from the compressed state to the restored state, it pushes the sliding part 51 towards the position of the first magnetic core 3. When the first protruding ridge 15 and the third protruding ridge 515 abut, the second magnetic core 7 moves to a position aligned with the first magnetic core 3. In this embodiment, the first protruding ridge 15 and the third protruding ridge 515 are arranged parallel to each other, resulting in more sufficient contact, uniform force distribution, and extended service life of the first protruding ridge 15 and the third protruding ridge 515.

[0042] The second protruding rib 17 is perpendicular to the first protruding rib 15 and parallel to the moving direction of the sliding part 51. Its position, in conjunction with the mounting frame 1, forms a space that ensures the movement of the sliding part 51, providing guidance for its lateral movement. The arrangement of the first protruding rib 15, the second protruding rib 17, and the third protruding rib 515 provides multi-angle limiting protection for the sliding of the sliding part 51. The structure is simple, ingenious, and low-cost.

[0043] It should be noted that the first protruding ridge 15 and the second protruding ridge 17 can be arranged in multiple ways. In this embodiment, the mounting frame 1 extends out as a single piece of structure, naturally forming the first protruding ridge 15 and the second protruding ridge 17. In another embodiment, the first protruding ridge 15 and the second protruding ridge 17 can be arranged separately, with two spaced-apart strip-shaped or multi-point-shaped structures extending separately from the mounting frame 1 to form the first protruding ridge 15 and the second protruding ridge 17. Further details will not be elaborated here.

[0044] Of course, in order to further limit the sliding position of the sliding part 51, so that the second magnetic core 7 moves to a position aligned with the first magnetic core 3, the first mounting part 11 can extend at the position where the first magnetic core 3 is mounted, such as... Figure 3 The leftmost sliding part 5 is connected to the mounting frame 1 at the position shown, so that the sliding part 51 slides to the extension of the first mounting part 11 and cannot slide further.

[0045] Please continue to refer to the following: Figure 9 , Figure 10 and Figure 11 The diagram shows the relative positions of the mounting bracket 1 and the sliding switch assembly 5 under three different operating states of the current probe 100. Figure 9 As shown, in the first working state, the user manually controls the switch cover 555 to move to the right, causing the sliding part 51 to move to the right as a whole, compressing the reset spring 533. The center rod 531 follows the movement and slides within the sliding through hole 503. In this state, the second magnetic core 7 is misaligned with the first magnetic core 3, exposing the U-shaped groove 103 on the mounting bracket 1, so that the user can place the conductor of the current to be measured into the U-shaped groove 103.

[0046] like Figure 10 As shown, in the second working state, when the user releases the switch cover 555, the reset spring 533 pushes the sliding part 51 to move to the left until the second magnetic core 7 is aligned with the first magnetic core 3. However, at this time, there is a gap between the second magnetic core 7 and the first magnetic core 3, and it is impossible to measure directly.

[0047] like Figure 11 As shown, in the third operating state, the user continues to push the switch cover 555 to the left. The sliding part 51 stops moving, and the locking tongue 573 continues to move to the left and abuts against the spring piece 571. When the locking tongue 573 abuts against the protruding structure 575 corresponding to the spring piece 571, it compresses the internal contact space, thereby applying pressure to the second magnetic core 7, making the second magnetic core 7 and the first magnetic core 3 pressed tightly together without gaps. In this state, the user can start measuring the current with high accuracy.

[0048] Compared with the prior art, the current probe 100 provided by this utility model realizes the separation and closure of the first magnetic core 3 and the second magnetic core 7 by setting the sliding switch assembly 5 including the sliding part 51 and the reset part 53. The reset part 53 cooperates with the sliding part 51 through the central rod 531, the reset spring 533, and the spring limiting block 535. This not only realizes the opening and closing required for detection but also facilitates the installation of the sliding part 51 onto the mounting frame 1. The detachable installation of the central rod 531 provides space for the disassembly and assembly of the sliding part 51.

[0049] Moreover, the spring limiting block 535 with the sliding through hole 503 only restricts the position of the return spring 533, providing energy storage and reset support for the return spring 533, without affecting the sliding of the center rod 531. During the compression and recovery process of the return spring 533, the center rod 531 is not subjected to the combined action of pressure at both ends, thereby improving the life of the center rod 531.

[0050] Furthermore, the reset spring 533 is sleeved on the central rod 531, which ensures that the compression and recovery process of the reset spring 533 is smooth and can only change along the direction of the central rod 531, without causing twisting and damage.

[0051] The current probe 100 provided by this utility model has a simple overall structure, is easy to disassemble and assemble, and the components cooperate with each other, making it less prone to damage, effectively improving the service life of the current probe 100 and reducing costs.

[0052] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. A current probe comprising: a mounting frame comprising a first mounting portion and a second mounting portion; a first magnetic core mounted on the first mounting portion; a sliding switch assembly mounted on the second mounting portion and capable of sliding relative to the second mounting portion; and a second magnetic core mounted on one end of the sliding switch assembly, the sliding switch assembly driving the second magnetic core to slide and controlling the second magnetic core to align with or separate from the first magnetic core, characterized in that the sliding switch assembly comprises: a sliding portion aligned with the mounting frame and provided with a mounting groove at one end close to the first mounting portion, the second magnetic core being arranged in the mounting groove; and a reset portion provided with a center rod, a reset spring and a spring limiting block, the spring limiting block being detachably mounted on the second mounting portion away from the first mounting portion and internally provided with a sliding through hole, one end of the center rod being detachably mounted on the sliding portion and the other end being accommodated in the sliding through hole, the reset spring being sleeved on the center rod and abutting against the sliding portion and the spring limiting block at two ends. A first sliding groove is formed on the mounting frame, a second sliding groove is formed on the sliding portion relative to the first sliding groove, the length of the second sliding groove is smaller than that of the first sliding groove, and the sliding switch assembly further comprises a manual portion penetrating through the first sliding groove and the second sliding groove.

2. The current probe of claim 1, wherein, The sliding switch assembly further comprises a locking portion, the locking portion comprising:

3. The current probe of claim 2, wherein, a spring sheet arranged between the second magnetic core and the sliding portion; and a lock tongue detachably mounted on the manual portion at one end and accommodated between the spring sheet and the sliding portion at the other end, the lock tongue and / or the spring sheet being provided with a protruding structure. The sliding switch assembly further comprises a blocking portion attached in the mounting groove and clamped between the sliding portion and the locking portion.

4. The current probe of claim 3, wherein, The sliding portion comprises an abutting wall located on the side of the mounting groove close to the reset portion, and the abutting wall is provided with a connecting piece for detachably mounting the center rod.

5. The current probe of claim 3, wherein, The sliding portion is provided with a through hole on the abutting wall, and the lock tongue penetrates through the through hole.

6. The current probe of claim 5, wherein, The manual portion comprises:

7. The current probe of claim 3, wherein, a sliding block in a U-shaped structure and provided with an accommodating groove for accommodating the reset portion and the lock tongue; and a protruding block protruding outward from the side of the sliding block aligned with the sliding portion. The manual portion further comprises a switch cover connected with the protruding block.

8. The current probe of claim 7, wherein, The manual portion further comprises a fastener connected with the switch cover by penetrating through the lock tongue, the sliding block and the protruding block.

9. The current probe of claim 8, wherein, The second mounting portion is provided with a sliding limiting structure, and the spring limiting block is arranged in the sliding limiting structure for fixing the spring limiting block and limiting the sliding distance of the sliding portion.

10. The current probe of claim 1, wherein, The mounting frame comprises a first convex rib and a second convex rib arranged perpendicularly to each other, and the sliding portion is provided with a third convex rib relative to the first convex rib.

11. The current probe of claim 1, wherein, ​ 12. The current probe of claim 1, wherein, Further included is a cover body which cooperates with the mounting frame body to form a receiving space, and the reset portion and part of the sliding portion are received in the receiving space.

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