External capacitor voltage division power taking device

Abstract

This utility model discloses an external capacitor voltage divider power extraction device, belonging to the field of power extraction. The external capacitor voltage divider power extraction device includes a connecting block, a clamping frame on one side of the connecting block, and a second mounting hole with a needle recessed at the upper end of the connecting block. Connecting brackets are provided on both sides of the connecting block. This utility model solves the problem in existing capacitor voltage divider power extraction devices where the needle cannot be adjusted to accommodate different cables at varying embedding depths, resulting in poor device adaptation. This utility model adjusts the horizontal height of the connecting bracket after it is fixed by adjusting the position of the connecting bracket adjusting bolt through the first mounting hole. The connecting bracket on both sides of the needle restricts the insertion depth of the cable, adapting to different insertion requirements.

Description

Technical Field

[0001] This utility model relates to the field of power extraction, specifically an external capacitor voltage divider power extraction device. Background Technology

[0002] An external capacitor voltage divider power supply device is a device that obtains electrical energy from high-voltage lines through the principle of capacitor voltage division. It utilizes the voltage division effect of capacitors on AC signals to convert high-voltage electrical energy into low-voltage electrical energy for output. This device is characterized by its small size, easy installation, safety and reliability, and is widely used in intelligent power distribution network systems to provide stable and reliable power for secondary equipment such as sensors and switches. Through capacitor voltage division, this device can effectively reduce the voltage level and achieve safe power extraction from high-voltage lines.

[0003] Chinese Patent CN216624589U discloses a capacitor voltage divider power extraction device that can be installed energized, including a piercing clamp. The piercing clamp includes a C-shaped clamp base, a movable clamp block, and an adjusting screw. The movable clamp block is vertically adjustable within the C-shaped clamp base via the adjusting screw. The movable clamp block includes a clamp block body, piercing needles, and a sealing plate. The clamp block body has several through holes for mounting the piercing needles, and the sealing plate has clearance notches for the adjusting screw to pass through. The sealing plate is bolted to the clamp block body. The device features a detachable design, simple structure, and convenient assembly and disassembly. It allows for the replacement and maintenance of the piercing needles, improves the adaptability of the movable clamp block, and extends its service life.

[0004] In the process of power extraction, the aforementioned patented capacitor voltage divider power extraction device has a fixed needle length, which means that the needle needs to be replaced when adapting to different cables. It cannot be adapted to different cables by adjusting the different embedding depths required by the power extraction device, resulting in poor device adaptation effect. Summary of the Invention

[0005] The purpose of this utility model is to provide an external capacitor voltage divider power supply device. By adjusting the position of the connecting bracket and the bolt passing through the first mounting hole inside, the horizontal height of the connecting bracket after it is fixed can be adjusted. The connecting bracket on both sides of the needle limits the insertion depth of the cable to adapt to different insertion requirements. At the same time, a waterproof cover can cover the upper part of the needle insertion position to protect the insertion position, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an external capacitor voltage divider power extraction device, comprising a connecting block, a clamping frame provided on one side of the connecting block, a second mounting hole with a needle recessed at the upper end of the connecting block, connecting brackets provided on both sides of the connecting block, and first mounting holes longitudinally arranged at both the front and rear ends of the connecting brackets, a bolt passing through the first mounting hole and embedded in the connecting block to fix the connecting bracket, an extension piece provided at one end of the connecting bracket, and a waterproof cover provided at the upper end of the connecting bracket.

[0007] Preferably, the interior of the waterproof cover has a rectangular mounting cavity vertically arranged therein, and the extension piece is fixedly connected to the interior of the mounting cavity by bolts.

[0008] Preferably, a rubber pad is provided at the lower end of the waterproof cover facing the connecting bracket.

[0009] Preferably, the lower end of the connecting block is rotatably provided with a threaded rod, which passes through the clamping frame and is threadedly engaged with the through position of the clamping frame.

[0010] Preferably, the outer wall of the needle is provided with a threaded wall, and the outer side of the threaded wall engages with the inner thread of the second mounting hole.

[0011] Preferably, a first bevel gear is provided at the lower end of the threaded rod, a second bevel gear is provided on one side of the outside of the first bevel gear for meshing connection, and a mounting frame is provided on the outside of the first bevel gear and the second bevel gear, and the mounting frame is connected to the connecting block by a connecting bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When installing the needle, the needle can rotate inside the second mounting hole through the threaded wall, and the needle can be directly embedded into the second mounting hole. The two sides of the four needles embedded in the cable are supported by connecting brackets. The two sides of the connecting bracket are longitudinally provided with first mounting holes for bolt connection. Selecting the first mounting hole of the corresponding height can facilitate the adjustment of the fixed height of the connecting bracket, which can restrict the cable held at the upper end of the connecting bracket and directly control the distance at which the cable can be embedded into the needle.

[0014] This invention features an extension piece folded on one side of the connecting bracket, which allows a waterproof cover to be fixed at the upper end of the cable insertion point of the needle. The distance between the waterproof cover and the connecting bracket can be adjusted according to the cable diameter. After the distance is adjusted, the cover can be fixed from the mounting cavity position with bolts, ensuring that the waterproof cover completely covers and wraps around the upper end of the cable insertion point of the needle, thereby improving the efficiency and effectiveness of power extraction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external connection structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the internal structure of the clamping frame of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle;

[0018] Figure 4 This is an exploded view of the connection structure between the connecting bracket and the waterproof cover of this utility model.

[0019] In the diagram: 1. Power insulator; 2. Mounting plate; 3. Mounting frame; 4. Threaded rod; 5. Connecting bracket; 6. Connecting block; 7. Connecting support; 8. Waterproof cover; 9. Rubber pad; 10. Mounting cavity; 11. First mounting hole; 12. Needle; 13. Handle; 14. First bevel gear; 15. Second bevel gear; 16. Clamping frame; 17. Second mounting hole; 18. Threaded wall; 19. Extension plate. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments.

[0021] like Figure 1 As shown, an external capacitor voltage divider power extraction device according to this embodiment includes a connecting block 6. A clamping frame 16 is provided on one side of the outside of the connecting block 6. The cable to be powered is fixed by clamping the clamping frame 16 and the connecting block 6. Four second mounting holes 17 are recessed at the upper end of the inside of the connecting block 6. A needle 12 is provided at the upper end of the outside of each of the four second mounting holes 17. The outer wall of the needle 12 is provided with a threaded wall 18. The outside of the threaded wall 18 is threaded with the inside of the second mounting hole 17. The needle 12 can be rotated and fixed through the threaded engagement, which facilitates the rotation of the needle 12 and the replacement of the needle 12.

[0022] Furthermore, connecting brackets 7 are provided on both sides of the connecting block 6. The front and rear ends of the connecting bracket 7 are provided with first mounting holes 11 in sequence. After the bolt passes through the first mounting hole 11 and is embedded in the connecting block 6, the connecting bracket 7 can be fixed. Adjusting the position of the bolt passing through the first mounting hole 11 can adjust the horizontal height of the connecting bracket 7. The connecting bracket 7 can also limit the maximum depth of the cable embedded in the needle 12.

[0023] In this embodiment, one end of the connecting bracket 7 is provided with an extension piece 19, and the extension piece 19 and the connecting bracket 7 are integral structures. A waterproof cover 8 is provided at the upper end of the outside of the connecting bracket 7. A rectangular mounting cavity 10 is vertically provided inside the waterproof cover 8. Bolts passing through the inside of the mounting cavity 10 can fix the waterproof cover 8 at different heights. The extension piece 19 and the inside of the mounting cavity 10 are fixedly connected by bolts. The height of the waterproof cover 8 can be fixed by bolts, so that the waterproof cover 8 can cover the upper end of the insertion position of the needle 12.

[0024] It is worth mentioning that a rubber pad 9 is provided at the lower end of the waterproof cover 8 facing the connecting bracket 7, and the rubber pad 9 is fixed to the waterproof cover 8 with adhesive. The rubber pad 9 can improve the fit when attaching the cable.

[0025] To facilitate the horizontal adjustment of the clamping frame 16 and to clamp the cable, the cable is actively pierced by the needle 12. The lower end of the connecting block 6 is rotatably provided with a threaded rod 4. The threaded rod 4 passes through the clamping frame 16 and is threadedly engaged with the through position of the clamping frame 16. By rotating the threaded rod 4, it can be threadedly engaged with the through position of the clamping frame 16 in the longitudinal direction. By restricting the clamping frame 16 and the connecting block 6, the connecting block 6 can be changed from rotational motion to longitudinal linear motion, and the clamping frame 16 and the connecting block 6 can be horizontally clamped.

[0026] Furthermore, a first bevel gear 14 is provided at the lower end of the threaded rod 4, and a second bevel gear 15 is provided on one side of the outside of the first bevel gear 14. The outside of the second bevel gear 15 is meshed with the outside of the first bevel gear 14. The first bevel gear 14 can drive the threaded rod 4 to rotate by rotating the position of the second bevel gear 15.

[0027] The first bevel gear 14 has a handle 13 at one end, and the handle 13 is welded and fixed to the second bevel gear 15. The second bevel gear 15 can be rotated by twisting the handle 13. In order to facilitate the wrapping and protection of the first bevel gear 14 and the second bevel gear 15, a mounting frame 3 is provided on the outside of the first bevel gear 14 and the second bevel gear 15. The mounting frame 3 is rotatably connected to the lower end of the first bevel gear 14. The threaded rod 4 driven and rotated by the first bevel gear 14 rotates inside the mounting frame 3. The mounting frame 3 is connected to the connecting block 6 through a connecting bracket 5. Through the connection and restriction of the connecting bracket 5, the horizontal position of the clamping frame 16 can be further adjusted. When installing and fixing the equipment, the upper structure can be fixed by passing bolts through the mounting frame 3 and embedding them into the installation position.

[0028] In order to extract power from the cable, a mounting plate 2 is provided on one side of the clamping frame 16, and the mounting plate 2 is fixedly connected to the clamping frame 16 by bolts. A power extraction insulator 1 is provided on one side of the mounting plate 2, and the power extraction insulator 1 is connected to the mounting plate 2 by a cable. The extracted power is transmitted to the inside of the power extraction insulator 1 through the mounting plate 2.

[0029] Working principle: When using the device and drawing power, rotate the needle 12. The threaded wall 18 on the outer wall of the needle 12 moves relative to the inside of the second mounting hole 17 until the needle 12 is embedded and fixed inside the second mounting hole 17. The bolt passes through the first mounting holes 11 reserved on both sides inside the connecting bracket 7. Adjust the horizontal height of the connecting bracket 7. The connecting bracket 7 limits the maximum depth to which the cable penetrates the needle 12. Place the cable inside the connecting bracket 7 and the clamping frame 16. Rotate and twist the handle 13. The handle 13 drives the first bevel gear 14 to rotate through the second bevel gear 15. The rotation of 4 can drive the threaded rod 4 to rotate. After the rotation of the threaded rod 4 is restricted by the connecting block 6 and the connecting bracket 5, the clamping bracket 16 can be adjusted horizontally in the longitudinal direction. The upper end of the cable can press the cable so that the lower end of the cable is pierced by the needle 12 and the maximum piercing distance is limited by the connecting bracket 7. After the bolt passes through the mounting cavity 10 and is embedded in the extension piece 19, the waterproof cover 8 can be fixed to the side of the extension piece 19. The uppermost end of the waterproof cover 8 is attached to the upper end of the cable through the rubber pad 9. The upper ends of the first mounting hole 11 are wrapped and protected on both sides of the upper end of the first mounting hole 11 piercing position.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An external capacitive voltage dividing power taking device, comprising a connecting block (6), characterized in that, A clamping frame (16) is provided on one side of the outside of the connecting block (6). A second mounting hole (17) with a needle (12) is recessed at the upper inside of the connecting block (6). A connecting bracket (7) is provided on both sides of the connecting block (6). A first mounting hole (11) is provided longitudinally at both the front and rear ends of the connecting bracket (7). After the bolt passes through the first mounting hole (11) and is embedded in the inside of the connecting block (6), the connecting bracket (7) can be fixed. An extension piece (19) is provided at one end of the connecting bracket (7). A waterproof cover (8) is provided at the upper outside of the connecting bracket (7).

2. The external capacitor voltage divider power extraction device according to claim 1, characterized in that, The waterproof cover (8) has a rectangular mounting cavity (10) vertically arranged inside, and the extension piece (19) is fixedly connected to the inside of the mounting cavity (10) by bolts.

3. The external capacitor voltage divider power extraction device according to claim 2, characterized in that, The lower end of the waterproof cover (8) is provided with a rubber pad (9) facing the connecting bracket (7).

4. The external capacitor voltage divider power extraction device according to claim 1, characterized in that, The lower end of the connecting block (6) is rotatably provided with a threaded rod (4), which passes through the clamping frame (16) and is threadedly engaged with the through position of the clamping frame (16).

5. The external capacitor voltage divider power supply device according to claim 1, characterized in that, The outer wall of the needle (12) is provided with a threaded wall (18), and the outer side of the threaded wall (18) is engaged with the inner thread of the second mounting hole (17).

6. The external capacitor voltage divider power extraction device according to claim 4, characterized in that, The lower end of the threaded rod (4) is provided with a first bevel gear (14), and a second bevel gear (15) is provided on one side of the outside of the first bevel gear (14) for meshing connection.

7. The external capacitor voltage divider power extraction device according to claim 6, characterized in that, The first bevel gear (14) and the second bevel gear (15) are provided with mounting frames (3).

8. The external capacitor voltage divider power extraction device according to claim 7, characterized in that, The mounting frame (3) and the connecting block (6) are connected by a connecting bracket (5).

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