Flexible current clamp for debugging electrical equipment

Abstract

The utility model discloses a flexible current clamp for debugging electrical equipment, which belongs to the field of current clamps, and comprises a clamp body, the back side of the clamp body is provided with an accommodating cavity, the center of the accommodating cavity is movably connected with a rotary column, the outer side of the rotary column is wound with a coil, and the coil is wound with a coil. And a take-up end is arranged on one side of the top of the plier body, a wire clamping end is arranged on the other side of the top of the plier body, the coil extends out of the take-up end to the wire clamping end, and a wire strip is fixedly connected to the interior of the containing cavity. The adjusting assembly and the first guide block extrude the reset spring and drive the rotating column to rotate at the same time, so that the coil is wound more tightly or loosely, the length of the coil outside the clamp body is adjusted, the diameter of the coil outside the clamp body can be freely adjusted according to the diameter of a back side wire and the number of wires, and the wire winding efficiency is improved. It is avoided that when the coil is too long, operation is difficult under the condition of narrow operation space, and meanwhile it is avoided that the coil is too short and cannot measure multiple wires at the same time.

Description

Technical Field

[0001] This utility model relates to the field of current clamps, and more specifically, to a flexible current clamp for debugging electrical equipment. Background Technology

[0002] A flexible current clamp is a special type of current measurement tool. Its key feature is that its clamp body or key components are typically made of materials with a certain degree of flexibility, or its structural design allows the jaws to bend and deform within a certain range. This flexible design allows the current clamp to adapt to more complex measurement environments, such as when space is limited, wires are irregularly arranged, or obstacles need to be bypassed, still allowing for easy insertion of wires into the measurement area for current detection. It inherits the advantages of traditional current clamps for non-contact measurement, while enhancing the tool's adaptability and ease of operation through flexibility.

[0003] However, in actual electrical equipment commissioning and measurement work, especially when dealing with wires of different diameters and numbers laid side by side, existing current clamps still have some operational inconveniences. For example, when it is necessary to measure the current of multiple wires simultaneously or when the wire diameter is large, if the induction coil (or related sensing components) outside the clamp is too long, it may cause interference in the narrow operating space, affecting operational flexibility; conversely, if the coil is too short, it may not be able to completely surround or effectively sense multiple wires, resulting in inaccurate measurements or inability to perform the measurement. In addition, if the fixing method of the coil connector is not convenient and reliable enough, it may loosen or separate during the measurement process, affecting the continuity and accuracy of the measurement. Therefore, we propose a flexible current clamp for electrical equipment commissioning to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a flexible current clamp for electrical equipment debugging. Through the setting of the adjustment component, the guide block and a pair of reset springs squeeze and drive the rotating column to rotate, thereby making the coil winding tighter or looser, thus adjusting the length of the coil outside the clamp body. This is beneficial to freely adjust the diameter of the coil outside the clamp body according to the diameter and number of wires on the back side, avoiding the difficulty of operation in narrow operating space when the coil is too long, and avoiding the inability to measure multiple wires at the same time when the coil is too short.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A flexible current clamp for debugging electrical equipment includes a clamp body with a receiving cavity on the back side. A rotating column is movably connected to the center of the receiving cavity, and a coil is wound around the outer side of the rotating column. A take-up end is provided on one side of the top of the clamp body, and a clamping end is provided on the other side of the top of the clamp body. The coil extends from the take-up end to the clamping end. A wire strip is fixedly connected inside the receiving cavity, and the coil moves through the wire strip. A receiving block is fixedly connected to the back side of the clamp body, and an adjustment component is provided on the inner side of the receiving block to control the extension length of the coil. A limit component is fixedly connected to the clamping end to fix the connector end of the coil.

[0009] Furthermore, the adjustment assembly includes a return spring, a guide block, a toothed joint, an adjustment column, and a connector. The return spring is fixedly connected inside the rotating column, and the other end of the return spring is fixedly connected to the guide block, which is in movable engagement with the inside of the rotating column. The other end of the guide block is fixedly connected to the toothed joint. The outer side of the adjustment column is threaded, and the adjustment column is movably connected to the receiving block via the thread. The inner side of the adjustment column is movably connected to the connector.

[0010] Furthermore, the connecting component includes a pair of teeth, a guide block, and a control post. The guide block is movably connected to the inside of the adjusting post, and the end of the guide block is fixedly connected to the pair of teeth. The control post has threads on its outer side, passes through the guide block, and is threadedly connected to the guide block.

[0011] Furthermore, the first gear meshes with the second gear, the control post moves through the adjustment post, and a knob is fixedly connected to the end of the control post away from the second gear.

[0012] Furthermore, the limiting component includes a locking post, a locking block, a moving ring, and a compression spring. The locking post is fixedly connected to the locking wire end, and a compression spring is fixedly connected to the outer side of the locking post. The other end of the compression spring is fixedly connected to a moving ring, which is movably sleeved on the outer side of the locking post. Several receiving slots are provided on the locking post, and the receiving slots are symmetrically arranged. A locking block is fixedly connected inside each receiving slot.

[0013] Furthermore, the limiting component also includes push blocks. A set of symmetrical push blocks are fixedly connected to the inner side of the moving ring, and the push blocks are respectively in movable cooperation with the receiving groove. The push blocks abut against the back side of the locking block.

[0014] Furthermore, the top of the card block has a slope, the card block is L-shaped, and the material of the card block is elastic. The connector end of the coil has a set of symmetrical card holes, and the end of the card block is adapted to the card holes.

[0015] 3. Beneficial Effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) In this scheme, by setting the adjustment component, the guide block squeezes a pair of reset springs and drives the rotating column to rotate, thereby making the coil wound tighter or looser, thereby adjusting the length of the coil outside the clamp body. This is beneficial to freely adjust the diameter of the coil outside the clamp body according to the diameter of the back wire and the number of wires, avoiding the difficulty of operation in the narrow operating space when the coil is too long, and at the same time avoiding the inability to measure several wires at the same time when the coil is too short.

[0018] (2) In this scheme, by setting the limiting component, when the control moving ring along the outside of the card post is squeezed to compress the compression spring, the push block moves downward away from the top of the card block, so that the card block can bend backward, thereby separating the front end of the card block from the card hole, and the connector end can be pulled out from the inside of the card post. This makes it convenient to quickly fix the connector end of the coil, avoid separation during the measurement process, and easily loosen the coil connector. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This is a schematic diagram of the internal structure of the clamp body of this utility model;

[0022] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Clamp body; 2. Receiving cavity; 3. Rotating post; 4. Coil; 5. Take-up end; 6. Wire clamping end; 7. Wire strip; 8. Receiving block; 9. Adjustment assembly; 901. Return spring; 902. Guide block one; 903. Alignment tooth one; 904. Adjustment post; 905. Alignment tooth two; 906. Guide block two; 907. Control post; 10. Limiting assembly; 1001. Clamping post; 1002. Clamping block; 1003. Moving ring; 1004. Compression spring; 1005. Push block; 11. Knob; 12. Receiving groove; 13. Clamping hole. Detailed Implementation

[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example 1:

[0028] like Figure 1-5 As shown, this utility model provides a technical solution: a flexible current clamp for debugging electrical equipment, including a clamp body 1, a receiving cavity 2 opened on the back side of the clamp body 1, a rotating column 3 movably connected to the center of the receiving cavity 2, a coil 4 wound around the outside of the rotating column 3, a take-up end 5 provided on one side of the top of the clamp body 1, and a clamping end 6 provided on the other side of the top of the clamp body 1, the coil 4 extends from the take-up end 5 to the clamping end 6, a wire strip 7 is fixedly connected inside the receiving cavity 2, and the coil 4 moves through the wire strip 7 to avoid excessive compression between the coils 4, a receiving block 8 is fixedly connected to the back side of the clamp body 1, an adjustment component 9 is provided on the inner side of the receiving block 8 to control the extension length of the coil 4, and a limit component 10 is fixedly connected to the clamping end 6 to fix the connector end of the coil 4.

[0029] The front of clamp 1 is equipped with a display screen and buttons for displaying data and changing templates.

[0030] Example 2:

[0031] like Figure 1 and Figure 4 As shown, the adjusting assembly 9 includes a return spring 901, a guide block 902, a gear 903, an adjusting column 904, and a connecting piece. The return spring 901 is fixedly connected inside the rotating column 3. The other end of the return spring 901 is fixedly connected to the guide block 902, and the guide block 902 is movably engaged with the interior of the rotating column 3. The other end of the guide block 902 is fixedly connected to the gear 903. The adjusting column 904 has threads on its outer side and is movably connected to the receiving block 8 via these threads. The connecting piece is movably connected to the inner side of the adjusting column 904. The connecting component includes a second tooth 905, a second guide block 906, and a control post 907. The second guide block 906 is movably connected to the inside of the adjusting post 904. The second tooth 905 is fixedly connected to the end of the second guide block 906. The control post 907 has threads on its outer side and passes through the second guide block 906. The control post 907 is threadedly connected to the second guide block 906. The first tooth 903 meshes with the second tooth 905. The control post 907 moves through the adjusting post 904, and a knob 11 is fixedly connected to the end of the control post 907 away from the second tooth 905.

[0032] The control column 907 is rotated by the knob 11. Since the control column 907 is threadedly connected to the guide block 906, the adjusting column 904 restricts the movement direction of the guide block 906, thereby causing the guide block 906 and the gear 905 to move along the axial direction of the adjusting column 904 until the gear 905 meshes with the gear 903. Then, the adjusting column 904 is rotated inward. Under the action of the gear 903 and the gear 905, the gear 903 and the guide block 902 rotate synchronously. Since the guide block 902 is in movable cooperation with the rotating column 3, the guide block 902 squeezes the return spring 901 and drives the rotating column 3 to rotate, thereby making the coil 4 wind tighter or looser. This adjusts the length of the coil 4 outside the clamp body 1, which is beneficial to freely adjust the diameter of the coil 4 outside the clamp body 1 according to the diameter and number of wires on the back side. This avoids the difficulty of operation in a narrow operating space when the coil 4 is too long, and also avoids the inability to measure several wires at the same time when the coil 4 is too short.

[0033] Example 3:

[0034] like Figure 1 and Figure 5 As shown, the limiting component 10 includes a locking post 1001, a locking block 1002, a moving ring 1003, and a compression spring 1004. The locking post 1001 is fixedly connected to the locking wire end 6. The compression spring 1004 is fixedly connected to the outer side of the locking post 1001. The moving ring 1003 is fixedly connected to the other end of the compression spring 1004. The moving ring 1003 is movably sleeved on the outer side of the locking post 1001. Several receiving slots 12 are provided on the locking post 1001. The receiving slots 12 are symmetrically arranged, and each receiving slot 12 is fixedly connected to a [missing information - likely a device or component]. The locking block 1002 and the limiting component 10 also include a push block 1005. A set of symmetrical push blocks 1005 are fixedly connected to the inner side of the moving ring 1003, and the push blocks 1005 are respectively in movable cooperation with the receiving groove 12. The push blocks 1005 abut against the back side of the locking block 1002. The top of the locking block 1002 has a slope. The locking block 1002 is L-shaped and made of elastic material. A set of symmetrical locking holes 13 are opened at the end of the connector of the coil 4, and the end of the locking block 1002 is adapted to the locking holes 13.

[0035] After coil 4 is placed on the outside of the wire, the connector end of coil 4 is inserted into the inside of the locking post 1001. The connector end abuts against the inclined surface of the locking block 1002, causing the locking block 1002 to retract into the receiving groove 12 until the connector end is fully inside the locking post 1001 and the end of the locking block 1002 is fully locked into the locking hole 13. When the control moving ring 1003 along the outside of the locking post 1001 is used to squeeze the compression spring 1004, the push block 1005 moves downward away from the top of the locking block 1002, allowing the locking block 1002 to bend backward. This separates the front end of the locking block 1002 from the locking hole 13, allowing the connector end to be pulled out from the inside of the locking post 1001. This facilitates the quick fixing of the connector end of coil 4, prevents separation during measurement, and makes it easy to loosen the connector of coil 4.

[0036] Working principle: In use, firstly, the control column 907 is rotated by knob 11. Since the control column 907 is threadedly connected to the guide block 906, the adjusting column 904 restricts the movement direction of the guide block 906, thereby causing the guide block 906 and the gear 905 to move axially along the adjusting column 904 until the gear 905 meshes with the gear 903. Then, the adjusting column 904 is rotated inward. Under the action of the gear 903 and the gear 905, the gear 903 and the guide block 902 rotate synchronously. Since the guide block 902 is in movable engagement with the rotating column 3, the guide block 902 resets. While the spring 901 is compressed, it drives the rotating column 3 to rotate, thereby making the coil 4 wind tighter or looser, thus adjusting the length of the coil 4 outside the clamp body 1. After the coil 4 is placed on the outside of the wire, by inserting the connector end of the coil 4 into the inside of the locking column 1001, the connector end abuts against the inclined surface of the locking block 1002, causing the locking block 1002 to retract into the inside of the receiving groove 12 until the connector end is completely inside the inside of the locking column 1001 and the end of the locking block 1002 is completely locked into the inside of the locking hole 13. Finally, the current of the wire can be measured by the coil 4 and displayed on the display screen.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A flexible current clamp for debugging electrical equipment, comprising a clamp body (1), characterized in that: The clamp body (1) has a receiving cavity (2) on its back side. A rotating column (3) is movably connected to the center of the receiving cavity (2). A coil (4) is wound around the outside of the rotating column (3). A take-up end (5) is provided on one side of the top of the clamp body (1), and a wire-clamping end (6) is provided on the other side of the top of the clamp body (1). The coil (4) extends from the take-up end (5) to the wire-clamping end (6). A wire strip (7) is fixedly connected inside the receiving cavity (2), and the coil (4) moves through the wire strip (7). A receiving block (8) is fixedly connected to the back side of the clamp body (1). An adjustment component (9) is provided on the inner side of the receiving block (8) to control the extension length of the coil (4). A limit component (10) is fixedly connected to the wire-clamping end (6) to fix the connector end of the coil (4).

2. The flexible current clamp for electrical equipment commissioning according to claim 1, characterized in that: The adjustment assembly (9) includes a return spring (901), a guide block (902), a toothed gear (903), an adjustment column (904), and a connector. The return spring (901) is fixedly connected inside the rotating column (3). The other end of the return spring (901) is fixedly connected to the guide block (902), and the guide block (902) is movably engaged with the inside of the rotating column (3). The other end of the guide block (902) is fixedly connected to the toothed gear (903). The outer side of the adjustment column (904) is threaded. The adjustment column (904) is movably connected to the receiving block (8) through the thread. The inner side of the adjustment column (904) is movably connected to the connector.

3. The flexible current clamp for electrical equipment commissioning according to claim 2, characterized in that: The connector includes a pair of teeth (905), a guide block (906), and a control post (907). The guide block (906) is movably connected to the inside of the adjusting post (904). The end of the guide block (906) is fixedly connected to the pair of teeth (905). The control post (907) has threads on its outer side. The control post (907) passes through the guide block (906) and is threadedly connected to the guide block (906).

4. The flexible current clamp for electrical equipment commissioning according to claim 3, characterized in that: The first gear (903) meshes with the second gear (905), the control column (907) moves through the adjustment column (904), and a knob (11) is fixedly connected to the end of the control column (907) away from the second gear (905).

5. A flexible current clamp for electrical equipment commissioning according to claim 1, characterized in that: The limiting component (10) includes a locking post (1001), a locking block (1002), a moving ring (1003), and a compression spring (1004). The locking post (1001) is fixedly connected to the locking wire end (6). The compression spring (1004) is fixedly connected to the outside of the locking post (1001). The moving ring (1003) is fixedly connected to the other end of the compression spring (1004). The moving ring (1003) is movably sleeved on the outside of the locking post (1001). Several receiving slots (12) are opened on the locking post (1001). The receiving slots (12) are symmetrically arranged, and the locking blocks (1002) are fixedly connected inside each receiving slot (12).

6. A flexible current clamp for electrical equipment commissioning according to claim 5, characterized in that: The limiting component (10) also includes a push block (1005). A set of symmetrical push blocks (1005) are fixedly connected to the inner side of the moving ring (1003), and the push blocks (1005) are respectively in movable cooperation with the receiving groove (12). The push blocks (1005) abut against the back side of the locking block (1002).

7. A flexible current clamp for electrical equipment commissioning according to claim 6, characterized in that: The top of the card block (1002) has a slope. The card block (1002) is L-shaped and made of elastic material. The connector end of the coil (4) is provided with a set of symmetrical card holes (13), and the end of the card block (1002) is adapted to the card holes (13).

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