Metering current transformer with detachable structure

Abstract

The utility model discloses a metering current transformer with a detachable structure, the detachable structure comprises a fixed plate, a transformer body and an equipment plate, the transformer body is fixedly arranged at the top end of the fixed plate, positioning strips are symmetrically and fixedly arranged at the bottom end of the fixed plate, an installation cavity is arranged in the fixed plate, and the equipment plate is arranged in the installation cavity. The bottom end of the positioning strip penetrates through the top end of the equipment plate in a sliding mode and extends into the mounting cavity, a U-shaped supporting frame is fixedly mounted in the mounting cavity through bolts, one end of the supporting frame penetrates through one side of the equipment plate in a sliding mode, and side plates are symmetrically and fixedly mounted between the two sides of the inner wall of the supporting frame; threaded rods are symmetrically and rotationally installed on the sides, away from each other, of the two side plates, sliding plates are installed on the threaded rods in a threaded mode, inserting rods are symmetrically and fixedly installed on one sides of the sliding plates, inserting grooves matched with the inserting rods are formed in one sides of the positioning strips, and adjusting assemblies are installed at one ends of the threaded rods. The device is convenient and fast to mount and dismount, stable in connection and convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the technical field of current transformer split structure, and more specifically, to a metering current transformer with a split structure. Background Technology

[0002] Currently, current transformers are crucial equipment for accurate power metering and ensuring stable power system operation during power system operation. In practical applications, transformers are frequently installed on various electrical equipment; however, existing current transformers present numerous installation and maintenance challenges. From an installation perspective, traditional transformers often have a fixed structure, a single connection method, and a complex installation process. This typically requires specialized technicians using various tools for tedious operations, consuming significant time and manpower. This poses a major obstacle in emergency power repairs or rapid deployment of new equipment where installation efficiency is critical. For example, during substation equipment upgrades, the cumbersome installation process of traditional transformers severely impacts the overall project progress, and the installation structure is prone to damage and difficult to replace after prolonged use. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a metering current transformer with a detachable structure, which aims to improve the problem that the installation structure is prone to damage and difficult to replace after long-term use.

[0004] This utility model is implemented as follows: A detachable metering current transformer includes a fixing plate, a transformer body, and an equipment plate. The transformer body is fixedly installed at the top of the fixing plate, and positioning strips are symmetrically fixedly installed at the bottom of the fixing plate. An installation cavity is provided inside the fixing plate. The bottom end of the positioning strip slides through the top of the equipment plate and extends into the installation cavity. A U-shaped support frame is fixedly installed inside the installation cavity by bolts. One end of the support frame slides through one side of the equipment plate. Side plates are symmetrically fixedly installed between the two sides of the inner wall of the support frame. Threaded rods are symmetrically rotated and installed on the two side plates on opposite sides. A sliding plate is threaded onto the threaded rod. A plug rod is symmetrically fixedly installed on one side of the sliding plate. A slot matching the plug rod is provided on one side of the positioning strip. An adjustment component is installed at one end of the threaded rod.

[0005] In a preferred embodiment of this utility model, the fixing plate has grooves at both ends, and anti-slip pads are installed on the inner walls of the grooves.

[0006] In a preferred embodiment of this utility model, the top of the device plate is provided with a first strip-shaped hole that matches the positioning strip, and the positioning strip is slidably connected to the inner wall of the first strip-shaped hole.

[0007] In a preferred embodiment of this utility model, a groove matching one side of the inner wall of the mounting cavity is provided, a support rod is symmetrically fixedly installed on one side of the inner wall of the groove, the support frame is slidably installed on the support rod, and a circular hole matching the support rod is provided on the support frame.

[0008] In a preferred embodiment of this utility model, a second strip-shaped hole matching the support frame is provided on one side of the equipment plate. The second strip-shaped hole and the groove are symmetrically arranged on the equipment plate, and one end of the support rod extends into the second strip-shaped hole.

[0009] In a preferred embodiment of this utility model, the adjusting assembly includes a first rotating shaft, a second rotating shaft, and a turntable. The first rotating shaft is rotatably mounted between the two side plates. Both ends of the first rotating shaft pass through the side plates and are fixedly connected to one end of the threaded rod. A worm gear is fixedly mounted on the first rotating shaft. The second rotating shaft is rotatably mounted between the two sides of the inner wall of the support frame. A worm is fixedly mounted on the second rotating shaft. The worm gear and the worm are connected in a transmission manner. One end of the second rotating shaft passes through one side of the support frame and is fixedly mounted on the turntable. A circular groove matching the turntable is provided on one side of the support frame. The turntable is slidably connected to the inner wall of the circular groove. A straight plate is provided on one side of the turntable.

[0010] In a preferred embodiment of this utility model, first limiting blocks are symmetrically fixedly installed at both ends of the slide plate, and a first limiting groove matching the first limiting block is provided on the inner wall of the support frame. The first limiting block is T-shaped.

[0011] In a preferred embodiment of this utility model, support strips are symmetrically fixedly installed between the two sides of the inner wall of the mounting cavity. Multiple springs are fixedly installed at the top of the support strips, and buffer plates are fixedly installed at the top of the multiple springs. The top of the buffer plates matches and is movably connected to the positioning strips. Second limiting blocks are symmetrically fixedly installed on both sides of the buffer plates. The second limiting blocks are T-shaped. Second limiting grooves matching the second limiting blocks are provided on both sides of the inner wall of the mounting cavity. The second limiting blocks are slidably connected to the inner wall of the second limiting grooves.

[0012] The beneficial effects of this utility model are:

[0013] Easy Installation and Disassembly: The structural design, including positioning strips, mounting cavities, and U-shaped support frames, simplifies the installation process. During installation, align the positioning strip on the fixing plate with the first slot at the top of the equipment plate and insert it, allowing the bottom end of the positioning strip to slide into the mounting cavity. Rotate the turntable of the adjustment component; the worm gear drive rotates the threaded rod, allowing the insert rod on the sliding plate to insert into the slot of the positioning strip, thus completing the installation. For disassembly, rotate the turntable in the opposite direction and pull out the insert rod to separate the fixing plate from the equipment plate. This process is simple to operate, requires no complex tools, reduces the professional skills required of installers, significantly shortens installation and disassembly time, and improves work efficiency, making it particularly suitable for emergency power repairs and rapid deployment of new equipment.

[0014] The connection is robust and reliable: the U-shaped support frame is bolted to the mounting cavity, with one end penetrating the equipment plate. The grooves on the inner wall of the mounting cavity, the support rods within the grooves, and the second strip-shaped hole on the equipment plate work together to provide multi-directional support and limitation for the support frame, enhancing the overall structural stability. The first limiting blocks at both ends of the sliding plate match the first limiting grooves on the inner wall of the support frame, preventing the sliding plate from shifting when the threaded rod rotates. This ensures the insertion rod can be accurately inserted into the slot, firmly connecting the fixing plate and the equipment plate, guaranteeing that the transformer will not loosen due to vibration or other factors during operation, thus improving the reliability of equipment operation.

[0015] Convenient maintenance and replacement: Traditional instrument transformers are difficult to replace after damage to their mounting structure. This utility model's detachable structure effectively solves this problem. When the instrument transformer or mounting structure malfunctions, it can be quickly disassembled, facilitating the repair or replacement of damaged components. For example, if the instrument transformer body or mounting structure is damaged, it can be easily repaired or replaced, reducing equipment downtime, lowering maintenance costs, and ensuring the continuous and stable operation of the power system.

[0016] Equipped with buffer protection function: The springs and buffer plates on the support plates inside the mounting cavity can effectively buffer the vibration and impact generated during the operation of the current transformer. When vibration occurs, the buffer plate moves up and down under the action of the spring, which plays a buffering role on the positioning bars, reduces the impact of vibration on the internal structure of the current transformer, protects the precision components of the current transformer, extends its service life, and ensures the accuracy and stability of the current transformer measurement.

[0017] User-friendly operation: The grooves at both ends of the fixing plate facilitate the application of force during installation and disassembly. The anti-slip pads on the inner walls of the grooves increase friction, preventing hand slippage and improving the convenience and safety of operation. The straight plate on one side of the turntable of the adjustment component makes it easy to use tools to rotate the turntable, further optimizing the user experience. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a detachable metering current transformer according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of the mounting cavity is provided for the embodiments of this utility model;

[0021] Figure 3 A structural schematic diagram of the support frame is provided for the embodiments of this utility model;

[0022] Figure 4 A schematic diagram of the device board is provided for the embodiments of this utility model.

[0023] In the diagram: 110-Fixing plate; 111-Inductor body; 112-Positioning strip; 120-Equipment plate; 130-Support frame; 131-Side plate; 132-Threaded rod; 133-Slide plate; 134-Insertion rod; 135-Support rod; 136-Second strip hole; 140-First rotating shaft; 141-Second rotating shaft; 142-Turntable; 150-Support strip plate; 151-Spring; 152-Buffer plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Please see Figures 1-3This utility model provides a technical solution: a detachable metering current transformer, including a fixing plate 110, a transformer body 111, and an equipment plate 120. The transformer body 111 is fixedly installed at the top of the fixing plate 110, and positioning strips 112 are symmetrically fixedly installed at the bottom of the fixing plate 110. An installation cavity is provided inside the fixing plate 110. The bottom end of the positioning strips 112 slides through the top of the equipment plate 120 and extends into the installation cavity. A first strip-shaped hole matching the positioning strips 112 is provided at the top of the equipment plate 120. The positioning strips 112 and the first strip... The inner wall of the shaped hole is slidably connected, and the U-shaped support frame 130 is fixedly installed inside the installation cavity by bolts. One end of the support frame 130 slides through one side of the equipment plate 120. Side plates 131 are symmetrically fixed between the two sides of the inner wall of the support frame 130. Threaded rods 132 are symmetrically rotated and installed on the two side plates 131 on the side that is relatively far away from each other. Slide plate 133 is threadedly installed on the threaded rod 132. Insert rods 134 are symmetrically fixed on one side of the slide plate 133. A slot matching the insert rod 134 is provided on one side of the positioning strip 112. An adjustment component is installed at one end of the threaded rod 132.

[0026] In some specific implementation schemes, the fixing plate 110 has grooves at both ends, and anti-slip pads are installed on the inner walls of the grooves. The groove design provides a force application point for installing and removing the fixing plate 110, making it convenient for operators to operate. The anti-slip pads increase the friction between the hand and the grooves, preventing slippage during operation, improving the safety and convenience of operation, and making it easier and more stable to move or adjust the position of the current transformer.

[0027] In some specific implementations, a groove matching one side of the inner wall of the mounting cavity is provided, and a support rod 135 is symmetrically fixedly installed on one side of the inner wall of the groove. The support frame 130 is slidably mounted on the support rod 135. A circular hole matching the support rod 135 is provided on the support frame 130. This structure further enhances the connection stability between the support frame 130 and the equipment plate 120, so that the entire mounting structure can better disperse stress when subjected to external forces or vibrations, avoiding loosening or displacement. A second strip hole 136 matching the support frame 130 is provided on one side of the equipment plate 120. The second strip hole 136 is symmetrically arranged on the equipment plate 120 with the groove. One end of the support rod 135 extends into the second strip hole 136. At the same time, the cooperation between the second strip hole 136 and the support rod 135 also provides more constraints for the sliding of the support frame 130, improving the reliability and durability of the structure.

[0028] Please see Figure 3 and Figure 4The adjustment assembly includes a first rotating shaft 140, a second rotating shaft 141, and a turntable 142. The first rotating shaft 140 is rotatably mounted between two side plates 131. Both ends of the first rotating shaft 140 pass through the side plates 131 and are fixedly connected to one end of a threaded rod 132. A worm gear is fixedly mounted on the first rotating shaft 140. The second rotating shaft 141 is rotatably mounted between the two sides of the inner wall of the support frame 130. A worm is fixedly mounted on the second rotating shaft 141. The worm gear and the worm are connected by a transmission. One end of the second rotating shaft 141 passes through one side of the support frame 130 and is fixedly mounted on the turntable 142. A circular groove matching the turntable 142 is provided on one side of the support frame 130. The turntable 142 is slidably connected to the inner wall of the circular groove. A straight plate is provided on one side of the turntable 142. First limiting blocks are symmetrically fixedly mounted at both ends of the sliding plate 133. A first limiting groove matching the first limiting block is provided on the inner wall of the support frame 130. The first limiting block is T-shaped.

[0029] In some specific implementations, support plates 150 are symmetrically fixedly installed between the two sides of the inner wall of the mounting cavity. Multiple springs 151 are fixedly installed at the top of the support plates 150, and buffer plates 152 are fixedly installed at the top of the springs 151. The top of the buffer plates 152 matches and is movably connected to the positioning strips 112. Second limiting blocks are symmetrically fixedly installed on both sides of the buffer plates 152. The second limiting blocks are T-shaped, and second limiting grooves matching the second limiting blocks are provided on both sides of the inner wall of the mounting cavity. The second limiting blocks are slidably connected to the inner walls of the second limiting grooves. This structure provides a buffering effect when installing the current transformer body 111.

[0030] Working principle: Align the positioning strip 112 on the fixing plate 110 with the first strip hole at the top of the equipment plate 120, so that the bottom end of the positioning strip 112 can slide smoothly through the top of the equipment plate 120 and extend into the mounting cavity inside the fixing plate 110. The positioning strip 112 is slidably connected with the inner wall of the first strip hole to achieve initial positioning.

[0031] Installation and Fixing: Rotating the turntable 142 of the adjustment assembly causes the second rotating shaft 141, which is fixedly connected to it, to rotate. The worm gear fixedly installed on the second rotating shaft 141 rotates accordingly. Due to the transmission connection between the worm wheel and the worm, the worm drives the worm wheel on the first rotating shaft 140 to rotate, thereby causing the first rotating shaft 140 to rotate. Both ends of the first rotating shaft 140 pass through the side plate 131 and are fixedly connected to one end of the threaded rod 132, so the threaded rod 132 also rotates. The sliding plate 133, which is threaded onto the threaded rod 132, moves linearly along the threaded rod 132 under the action of the thread. The first limiting blocks, which are symmetrically fixedly installed at both ends of the sliding plate 133, slide in the first limiting groove on the inner wall of the support frame 130 to ensure the stability and accuracy of the movement of the sliding plate 133. The insertion rod 134, which is symmetrically fixedly installed on one side of the sliding plate 133, moves with the sliding plate 133 and finally inserts into the matching slot on one side of the positioning strip 112, completing the fixed connection between the fixing plate 110 and the equipment plate 120, and realizing the installation of the current transformer. Disassembly and Maintenance: When maintenance or component replacement of the current transformer is required, rotate the turntable 142 of the adjusting assembly in reverse. Following the reverse transmission sequence from installation and fixing, rotate the threaded rod 132 in reverse, causing the slide plate 133 to move away from the positioning bar 112, and the insertion rod 134 to be pulled out of the slot of the positioning bar 112. At this time, the connection between the fixing plate 110 and the equipment plate 120 is released, and the fixing plate 110 along with the current transformer body 111 can be separated from the equipment plate 120, facilitating the repair or replacement of damaged components. When the mounting structure is damaged and needs to be replaced, simply rotate the bolts of the fixing support frame 130 to remove it, and then remove and replace the support frame 130.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A metering current transformer of dismountable construction, characterized in that, The utility model provides a kind of installation device of transformer, including fixed plate, mutual inductor body and equipment plate, the fixed plate top end fixed installation the mutual inductor body, the fixed plate bottom end symmetrical fixed installation positioning strip, the fixed plate inside is provided with installation cavity, the positioning strip bottom end slidingly penetrates the equipment plate top end and extends into the installation cavity, the installation cavity inside is fixedly installed U-shaped support frame by bolt, the support frame one end slidingly penetrates the equipment plate one side, the support frame inner wall between two sides is fixedly installed side plate symmetrically, two The side plate is symmetrically rotatably installed threaded rod opposite far side, threaded rod is screw-mounted sliding plate on, the sliding plate one side is fixedly installed insertion rod symmetrically, the positioning strip one side is provided with the insertion groove matched with the insertion rod, the threaded rod one end is equipped with adjusting assembly.

2. A split structure instrument current transformer according to claim 1, characterized in that, The fixed plate is provided with a pull groove at both ends.

3. A split structure instrument current transformer as claimed in claim 1, wherein, The equipment plate is provided with a first slot hole matched with the positioning strip at the top end.

4. A split structure instrument current transformer as recited in claim 1, wherein, The installation cavity inner wall one side is provided with a groove matched with the support frame one side, the groove inner wall one side is fixedly installed support rod symmetrically, and the support frame is slidingly installed on the support rod.

5. A split structure instrument current transformer according to claim 4, wherein, The equipment plate is provided with a second slot hole matched with the support frame on one side, and the second slot hole is symmetrically arranged on the equipment plate with the groove.

6. A split structure instrument current transformer as recited in claim 1, wherein, The adjusting assembly comprises a first rotating shaft, a second rotating shaft and a rotating disc, the first rotating shaft is rotatably installed between two side plates, the first rotating shaft penetrates the side plates at both ends and is fixedly connected with one end of the threaded rod, a worm wheel is fixedly installed on the first rotating shaft, the second rotating shaft is rotatably installed between the inner walls of the support frame, a worm is fixedly installed on the second rotating shaft, the worm wheel and the worm are in transmission connection, and one end of the second rotating shaft penetrates one side of the support frame and is fixedly installed with the rotating disc.

7. A split structure instrument current transformer as recited in claim 1, wherein, The sliding plate is fixedly installed with a first limiting block symmetrically at both ends, and the installation cavity inner wall is provided with a first limiting groove matched with the first limiting block.

8. A split structure instrument current transformer as recited in claim 1, characterized by, The installation cavity inner wall is fixedly installed with a support strip symmetrically between both sides, the support strip is fixedly installed with a plurality of springs at the top end, a plurality of the springs are fixedly installed with a buffer plate at the top end, and the buffer plate is matched with the positioning strip at the top end and is movably connected.

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