A line protection device for power design

Abstract

The utility model discloses a kind of line protection devices for electric power design, it is related to electric power protection technical field;And the utility model includes current transformer body, current transformer body both ends are equipped with damping rotary adjusting assembly, the rotary end of damping rotary adjusting assembly is fixedly installed with turnover frame, line clamping protection assembly and trigger reset component are respectively equipped in turnover frame;The utility model is equipped with line clamping protection assembly and trigger reset component, line clamping protection assembly is driven cooperation by guide rod, moving block, arc rod and connecting rod, promote two clamping frames carry anti-skid sleeve to be mutually close, the line of current transformer body both sides is stably clamped, effectively limit line displacement, ensure that line and the relative position accuracy of current transformer, by trigger reset component, the self-locking state of line clamping protection assembly to limit block can be quickly released, drive clamping frame to automatically mutually far away, realize the quick unlocking of line.

Description

Technical Field

[0001] This utility model relates to the field of power protection technology, specifically a line protection device for power design. Background Technology

[0002] Power line protection devices refer to a collection of specialized equipment or devices used to monitor power lines. When a fault or abnormality such as a short circuit, overload, grounding, overvoltage, or undervoltage occurs in the line, it can quickly identify and trigger protection actions to prevent the fault from escalating, protect the safety of line equipment, and ensure the stable operation of the power system. Typically, current transformers are introduced into the line to accurately collect the line current signal, providing core data support for the line protection device. After installation, traditional current transformers have lines running only through the middle of their main body, with no stable constraints on the sides. These lines are prone to loosening and displacement due to external vibrations or changes in their own tension, causing the relative position of the lines and the transformer to deviate from the design requirements. This affects the accurate acquisition of current and may lead to metering errors and false triggering of protection functions. Secondly, the fixed angle of the traditional installation structure means that the lines need to be forcibly bent to adapt to different wiring requirements. If the bending radius is too small, it can easily damage the cable insulation layer, shorten its lifespan, and may also increase line interference due to wiring deviations from specifications, affecting the overall performance of the circuit. To address these issues, the inventors have proposed a line protection device for power design to solve these problems. Utility Model Content

[0003] To address the issues of wire clamping and angle adjustment, the purpose of this invention is to provide a line protection device for power design. To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a line protection device for power design, including a current transformer body, wherein a damping rotation adjustment component is provided at both ends of the current transformer body, and a flip frame is fixedly installed at the rotating end of the damping rotation adjustment component, and a line clamping protection component and a trigger reset component are respectively provided in the flip frame.

[0004] Preferably, the line clamping protection assembly includes two symmetrically distributed movable blocks, which are slidably mounted on a flip frame. An arc-shaped rod is fixedly mounted on the top of each movable block, and clamping frames are fixedly mounted on opposite sides of the two arc-shaped rods. Anti-slip sleeves are provided inside the clamping frames. A guide rod is provided between the two clamping frames, and the guide rod slides through the flip frame via a spline. A push block is fixedly mounted on one end of the guide rod near the clamping frame, and a limit block is fixedly mounted on the other end of the guide rod. The limit block is slidably mounted on the flip frame, and connecting rods are rotatably hinged to both sides of the top of the limit block. The other end of the connecting rod is rotatably hinged to the top of the corresponding push block. Next, an inner plate is fixedly installed on the inner wall of the flip frame. A limiting spring is firmly installed on the end of the limiting block away from the guide rod. The top of the limiting spring is a right-angled trapezoid, and the end of the right-angled trapezoid away from the guide rod is inclined. Four limiting grooves are opened in the middle of the inner plate, which are equally distributed and cooperate with the limiting spring. A first reset spring is provided directly below the limiting spring, and the two ends of the first reset spring are fixedly connected to the limiting block and the inner wall of the flip frame, respectively. Fixed rods are slidably installed on both sides of the moving block, and the fixed rods are fixedly installed on the inner wall of the flip frame. A slide rail is slidably installed at the bottom of the limiting block, and the slide rail is fixedly installed in the middle of the bottom end of the inner wall of the flip frame.

[0005] Preferably, the damping rotation adjustment assembly includes a bracket and a fixed frame. The bracket is securely mounted on the top of the flip frame by bolts, and the fixed frame is securely mounted on the bracket by bolts. A rotating shaft is rotatably mounted on the inner wall of the fixed frame. The rotating shaft has six internal grooves arranged in a circular array. A damping ball is slidably disposed in the internal groove. A damping spring is disposed between the damping ball and the internal groove. The inner wall of the fixed frame has twelve damping grooves arranged in a circular array to cooperate with the damping ball.

[0006] Preferably, the trigger reset assembly includes a reset frame and two symmetrically distributed guide posts. The two guide posts are fixedly installed at the top center of the built-in plate, and the other end of the guide posts is fixedly connected to the inner wall of the flip frame. The reset frame is vertically slidably installed on the two guide posts. The bottom end of the reset frame is provided with four inserts corresponding to the limiting grooves. A handle is fixedly installed at the top center of the reset frame, and the handle passes through the flip frame. A second reset spring is sleeved on the outer wall of the guide posts, and the two ends of the second reset spring are fixedly connected to the top of the built-in plate and the bottom of the reset frame, respectively.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting up a line clamping protection component and a trigger reset component, uses the transmission cooperation of a guide rod, a moving block, an arc rod, and a connecting rod to make the two clamping frames with anti-slip sleeves move closer to each other, stably clamping the lines on both sides of the current transformer body, effectively limiting line displacement, and ensuring accurate relative position between the lines and the current transformer; the trigger reset component can quickly release the self-locking state of the limit block of the line clamping protection component. At this time, the first reset spring releases its elastic force, causing the clamping frames to automatically move away from each other, realizing rapid unlocking of the lines, taking into account both the reliability of line fixation and the convenience of maintenance; 2. This utility model, by setting a damping rotation adjustment component, enables the flip frame to drive the rotating shaft to rotate synchronously under external force. During the rotation, the damping ball compresses the damping spring and slides along the inner wall of the fixed frame. After rotating to the target angle, the damping spring resets and pushes the damping ball into the corresponding damping groove to lock the angle, thus achieving the effect of flexible adjustment and stable positioning of the flip frame angle, adapting to the wiring direction of the line in different scenarios. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the damping rotation adjustment component in this application. Figure 3 This is a schematic diagram of the overall side profile of this utility model; Figure 4 This is a schematic diagram of a portion of the line clamping and protection component in this utility model; Figure 5 This is a schematic diagram of a portion of the line clamping and protection component in this utility model; Figure 6 This is a side-section unfolded structural diagram of the damping rotation adjustment component in this utility model; Figure 7 This is a schematic diagram of the internal structure of the flip frame in this utility model; Figure 8 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0010] In the diagram: 1. Current transformer body; 2. Damping rotation adjustment assembly; 21. Bracket; 22. Fixing frame; 23. Rotating shaft; 24. Built-in groove; 25. Damping ball; 26. Damping spring; 27. Damping groove; 3. Flip frame; 4. Line clamping protection assembly; 41. Moving block; 42. Arc rod; 43. Clamping frame; 44. Anti-slip sleeve; 45. Guide rod; 46. Push block; 47. Limiting block; 48. Connecting rod; 49. No. 1 reset spring; 410. Built-in plate; 411. Limiting spring; 412. Limiting groove; 413. Fixing rod; 414. Slide rail; 5. Trigger reset assembly; 51. Reset frame; 52. Handle; 53. Guide post; 54. No. 2 reset spring. Detailed Implementation

[0011] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0012] like Figure 1-9 As shown, this utility model provides a line protection device for power design, including a current transformer body 1, with damping rotation adjustment components 2 at both ends of the current transformer body 1, and a flip frame 3 fixedly installed on the rotating end of the damping rotation adjustment component 2, and a line clamping protection component 4 and a trigger reset component 5 respectively provided in the flip frame 3. The line clamping protection assembly 4 includes two symmetrically distributed movable blocks 41, which are slidably installed in the flip frame 3. An arc-shaped rod 42 is fixedly installed on the top of each of the two movable blocks 41. A clamping frame 43 is fixedly installed on the opposite side of each of the two arc-shaped rods 42. An anti-slip sleeve 44 is provided on the inner side of the clamping frame 43. A guide rod 45 is provided between the two clamping frames 43, and the guide rod 45 slides through the flip frame 3 via a spline. A push block 46 is fixedly installed on one end of the guide rod 45 near the clamping frame 43, and a limit block 47 is fixedly installed on the other end of the guide rod 45. The limit block 47 is slidably installed in the flip frame 3. A connecting rod 48 is rotatably hinged on both sides of the top of the limit block 47, and the other end of the connecting rod 48 is rotatably hinged to the top of the corresponding push block 46.

[0013] By adopting the above technical solution, the movement of the guide rod 45 is achieved by the moving block 41, the arc rod 42 and the connecting rod 48, which drive the two clamping frames 43 and the anti-slip sleeve 44 to move closer to each other to clamp and fix the wire, ensuring the stability of the wire during operation and providing a basic guarantee for the stable operation of the current transformer.

[0014] The damping rotation adjustment assembly 2 includes a bracket 21 and a fixed frame 22. The bracket 21 is securely mounted on the top of the flip frame 3 by bolts, and the fixed frame 22 is securely mounted on the bracket 21 by bolts. A rotating shaft 23 is rotatably mounted on the inner wall of the fixed frame 22. Six annularly arranged internal grooves 24 are opened in the rotating shaft 23. A damping ball 25 is slidably arranged in the internal grooves 24. A damping spring 26 is provided between the damping ball 25 and the internal groove 24. Twelve damping grooves 27 arranged in an annular array and used in conjunction with the damping ball 25 are opened on the inner wall of the fixed frame 22.

[0015] By adopting the above technical solution, the angle of the flip frame 3 can be flexibly adjusted and stably locked by applying a certain external force, adapting to the wiring direction of wires in different scenarios.

[0016] An inner plate 410 is fixedly installed on the inner wall of the flip frame 3. A limiting spring 411 is firmly installed on the end of the limiting block 47 away from the guide rod 45. The top of the limiting spring 411 is a right trapezoid, and the end of the right trapezoid away from the guide rod 45 is inclined. Four limiting grooves 412 are provided in the middle of the inner plate 410, which are equally distributed and cooperate with the limiting spring 411.

[0017] By adopting the above technical solution, the inclined side of the limiting spring 411 will make smooth contact with the edge of the limiting groove 412 of the built-in plate 410 during the movement. Under the action of thrust, the limiting spring 411 undergoes elastic deformation and slides into the current limiting groove 412, thereby locking the position of the limiting block 47. By inserting it into the limiting groove 412 at different positions, wires of different specifications can be clamped.

[0018] The trigger reset assembly 5 includes a reset frame 51 and two symmetrically distributed guide posts 53. The two guide posts 53 are fixedly installed at the top center of the built-in plate 410, and the other end of the guide posts 53 is fixedly connected to the inner wall of the flip frame 3. The reset frame 51 is vertically slidably installed on the two guide posts 53. The bottom end of the reset frame 51 is provided with four inserts corresponding to the limit groove 412. A handle 52 is fixedly installed at the top center of the reset frame 51, and the handle 52 passes through the flip frame 3.

[0019] By adopting the above technical solution, during the descent of the reset frame 51, the four inserts push the limiting spring piece 411, which is engaged in the limiting groove 412, outward, so that the limiting spring piece 411 is freed from the constraint of the limiting groove 412, thereby releasing the position lock of the limiting block 47.

[0020] A first reset spring 49 is provided directly below the limiting spring 411, and the two ends of the first reset spring 49 are fixedly connected to the limiting block 47 and the inner wall of the flip frame 3, respectively.

[0021] By adopting the above technical solution, the first reset spring 49 pushes the limit block 47 to reset.

[0022] Both sides of the movable block 41 are slidably mounted with fixing rods 413, and the fixing rods 413 are fixedly installed on the inner wall of the flip frame 3.

[0023] By adopting the above technical solution, the moving block 41 can move stably under the guidance of the fixed rod 413.

[0024] The bottom end of the limiting block 47 is slidably mounted with a slide rail 414, and the slide rail 414 is fixedly mounted in the middle of the bottom end of the inner wall of the flip frame 3.

[0025] By adopting the above technical solution, the limiting block 47 can move stably under the guidance of the slide rail 414.

[0026] The outer wall of the guide post 53 is fitted with a second reset spring 54, and the two ends of the second reset spring 54 are fixedly connected to the top of the inner plate 410 and the bottom of the reset frame 51, respectively.

[0027] By adopting the above technical solution, the second reset spring 54 pushes the reset frame 51 to reset.

[0028] Working principle: In actual use, first install the current transformer body 1 according to the circuit design requirements, then pass the wire through the middle of the current transformer body 1, and then, according to actual needs, wind the wire around the outer wall of the current transformer body 1 with a specific number of turns. Then, adjust the angle of the flip frame 3 according to the installation requirements of the line. Manually apply external force to rotate the flip frame 3. The flip frame 3 drives the rotating shaft 23 to rotate synchronously. During this process, the damping ball 25 is squeezed and compresses the damping spring 26 and slides along the inner wall of the fixed frame 22. When the target angle is reached, the damping spring 26 resets and pushes the damping ball 25 into the corresponding damping groove 27 to lock the angle of the flip frame 3 so as to adapt to the direction of wire wiring. Subsequently, the side of the wire that needs to be fixed is placed at the push block 46, and an external force is applied to the wire. The wire pushes the push block 46, the guide rod 45, and the limiting block 47 to move under the guidance of the slide rail 414, and squeezes the first reset spring 49. During the movement, the limiting block 47 drives the two moving blocks 41 to move closer to each other along the fixed rod 413 through the connecting rod 48, so that the arc rod 42 drives the two clamping frames 43 and the anti-slip sleeve 44 to move closer to each other and contact the outer wall of the wire and clamp and fix it. During this process, the limiting block 47 drives the limiting spring 411 to move synchronously. The limiting spring 411 makes smooth contact with the edge of the limiting groove 412 of the built-in plate 410 due to the top tilt side. Under the push, it elastically deforms and slides into the corresponding limiting groove 412, realizing the self-locking of the limiting block 47 and ensuring the stability of the wire. When it is necessary to unlock the wire, manually press down the handle 52. The reset frame 51 descends along the guide post 53 under the action of the second reset spring 54. Its bottom insert extends into the limiting groove 412, pushing the locked limiting spring 411 outward and releasing the lock on the limiting block 47. Then the first reset spring 49 pushes the limiting block 47 to reset, driving the components to make the clamping frame 43 release the wire, which is convenient for the adjustment or removal of the wire.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A line protection device for power design, comprising a current transformer body (1), characterized in that: The current transformer body (1) is provided with damping rotation adjustment components (2) at both ends. A flip frame (3) is fixedly installed on the rotating end of the damping rotation adjustment component (2). A line clamping protection component (4) and a trigger reset component (5) are respectively provided in the flip frame (3). The line clamping protection assembly (4) includes two symmetrically distributed movable blocks (41). The two movable blocks (41) are slidably installed in the flip frame (3). An arc rod (42) is fixedly installed on the top of each of the two movable blocks (41). A clamping frame (43) is fixedly installed on the opposite side of each of the two arc rods (42). An anti-slip sleeve (44) is provided on the inner side of the clamping frame (43). A guide rod (45) is provided between the two clamping frames (43). The guide rod (45) slides through the flip frame (3) through a spline. A push block (46) is fixedly installed on one end of the guide rod (45) near the clamping frame (43). A limit block (47) is fixedly installed on the other end of the guide rod (45). The limit block (47) is slidably installed in the flip frame (3). A connecting rod (48) is rotatably hinged on both sides of the top of the limit block (47). The other end of the connecting rod (48) is rotatably hinged to the top of the corresponding push block (46).

2. The power line protection device for power design as described in claim 1, characterized in that, The damping rotation adjustment assembly (2) includes a bracket (21) and a fixed frame (22). The bracket (21) is securely mounted on the top of the flip frame (3) by bolts. The fixed frame (22) is securely mounted on the bracket (21) by bolts. A rotating shaft (23) is rotatably mounted on the inner wall of the fixed frame (22). Six ring-shaped grooves (24) are provided in the rotating shaft (23). A damping ball (25) is slidably provided in the groove (24). A damping spring (26) is provided between the damping ball (25) and the groove (24). Twelve damping grooves (27) arranged in a ring-shaped array and used in conjunction with the damping ball (25) are provided on the inner wall of the fixed frame (22).

3. A line protection device for power design as described in claim 1, characterized in that, The inner wall of the flip frame (3) is fixedly installed with an inner plate (410). The end of the limiting block (47) away from the guide rod (45) is fixedly installed with a limiting spring (411). The top of the limiting spring (411) is a right trapezoid, and the end of the right trapezoid away from the guide rod (45) is inclined. The inner plate (410) has four equidistant limiting grooves (412) that cooperate with the limiting spring (411).

4. A line protection device for power design as described in claim 1, characterized in that, The trigger reset assembly (5) includes a reset frame (51) and two symmetrically distributed guide posts (53). The two guide posts (53) are fixedly installed at the top center of the built-in plate (410), and the other end of the guide posts (53) is fixedly connected to the inner wall of the flip frame (3). The reset frame (51) is vertically slidably installed on the two guide posts (53). The bottom of the reset frame (51) is provided with four inserts corresponding to the limit groove (412). A handle (52) is fixedly installed at the top center of the reset frame (51), and the handle (52) passes through the flip frame (3).

5. A line protection device for power design as described in claim 3, characterized in that, A first reset spring (49) is provided directly below the limiting spring (411), and the two ends of the first reset spring (49) are fixedly connected to the limiting block (47) and the inner wall of the flip frame (3), respectively.

6. A line protection device for power design as described in claim 1, characterized in that, The movable block (41) is slidably mounted with a fixing rod (413) on both sides, and the fixing rod (413) is fixedly mounted on the inner wall of the flip frame (3).

7. A line protection device for power design as described in claim 1, characterized in that, The bottom end of the limiting block (47) is slidably mounted with a slide rail (414), and the slide rail (414) is fixedly mounted in the middle of the bottom end of the inner wall of the flip frame (3).

8. A line protection device for power design as described in claim 4, characterized in that, The guide post (53) is fitted with a second reset spring (54) on its outer wall, and the two ends of the second reset spring (54) are fixedly connected to the top of the inner plate (410) and the bottom of the reset frame (51) respectively.

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