Combined current transformer

Abstract

The utility model discloses a combined current transformer, and relates to the technical field of magnets. A combined current transformer comprises a mounting base, a limiting device is arranged on the mounting base, the limiting device comprises a transformer body, a fixing seat and two fixing blocks, second limiting block grooves are formed in the outer walls of the opposite faces of the two fixing blocks, limiting blocks are slidably connected into the two second limiting block grooves, the transformer body is mounted on the upper surface of the fixing seat, and the limiting blocks are slidably connected into the second limiting block grooves. Two fixing block grooves are formed in the lower surface of the fixing base, the two fixing block grooves in the lower end of the fixing base in the limiting device are opposite to the fixing blocks and then inserted into the fixing blocks, then the limiting blocks enter the corresponding first limiting block grooves, the fixing base is limited, and therefore installation of the mutual inductor is completed. According to the mutual inductor, the threaded rod does not need to be screwed manually for installation, in this way, installation is rapid, extra manual operation is not needed, the workload of workers is effectively reduced, and meanwhile the installation efficiency of the mutual inductor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of magnets, and particularly relates to a combined current transformer. Background Art

[0002] A current transformer is an instrument that measures by converting a large current on the primary side into a small current on the secondary side based on the principle of electromagnetic induction. A current transformer consists of a closed iron core and windings. The Chinese utility model patent with the authorization announcement number "CN219143965U" discloses a combined current transformer that is easy to install, including a transformer main body. One side of the transformer main body is fixedly connected with a transformer base, and an installation member is arranged on one side of the transformer base. The installation member includes an installation plate, one side of the installation plate is fixedly connected with an installation frame, and an adjustment column is slidably connected to one side of the installation frame. The advantage of the utility model is that after the installation block is adjusted, then the transformer base needs to be placed on the installation frame and the threaded column is rotated. Through screw transmission, the moving plate can be driven to move until the fixed clamping plate moves into the fixed clamping groove to complete the installation of the transformer. The installation is convenient to operate and can be applied to various transformers.

[0003] The above technical solution can complete the installation of the transformer by placing the transformer base on the installation frame and rotating the threaded column. Through screw transmission, the moving plate can be driven to move until the fixed clamping plate moves into the fixed clamping groove. The installation is convenient to operate, but there are still certain defects in the above technical solution. For example, the above device can complete the installation of the transformer by driving the moving plate to move and driving the fixed clamping plate to move into the fixed clamping groove, but this requires the staff to manually rotate the threaded column to complete the installation. The operating space is limited during rotation, which limits the operating space of the staff and thus reduces the installation efficiency of the transformer. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a combined current transformer, which can solve the problem that the installation of the transformer can be completed by driving the moving plate to move and driving the fixed clamping plate to move into the fixed clamping groove, but this requires the staff to manually rotate the threaded column to complete the installation. The operating space is limited during rotation, which limits the operating space of the staff and thus reduces the installation efficiency of the transformer.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A combined current transformer includes an installation base, and a limiting device is arranged on the installation base;

[0006] The limiting device includes a mutual inductor, a fixed seat, and two fixed blocks. Second limiting block grooves are formed in the outer walls of the opposite surfaces of the two fixed blocks. Limiting blocks are slidably connected to the interiors of the two second limiting block grooves. The mutual inductor is installed on the upper surface of the fixed seat, and two fixed block grooves are formed in the lower surface of the fixed seat;

[0007] Wherein, the outer walls of the two fixed blocks are respectively slidably connected to the interiors of the corresponding fixed block grooves. First limiting block grooves are formed in the interiors of the two fixed block grooves. Pulling plates are slidably connected to the interiors of the grooves formed in the outer walls of the two fixed blocks. Three second return springs are arranged in each of the two fixed blocks.

[0008] Preferably, the outer walls of the two limiting blocks are respectively in contact with the inner walls of the corresponding first limiting block grooves. One ends of the two pulling plates close to the limiting blocks slide and extend into the interiors of the fixed blocks and are fixedly connected to the outer walls of the corresponding limiting blocks;

[0009] Wherein, the two ends of the six second return springs are respectively fixedly connected to the inner walls of the corresponding fixed blocks and the outer walls of the limiting blocks. The lower outer walls of the fixed seat are respectively in contact with the upper surfaces of the two sides of the corresponding fixed block outer walls.

[0010] Preferably, sliding seat grooves are formed in the inner walls on both sides of the installation base. Fixed sliders are slidably connected to the interiors of the two sliding seat grooves;

[0011] Wherein, the bolts threadedly connected to the outer walls on both sides of the installation base threadedly extend into the grooves formed in the outer walls of the fixed sliders.

[0012] Preferably, two sliding seats are slidably connected to the interiors of the two sliding seat grooves;

[0013] Wherein, the lower surfaces of the two fixed blocks are respectively fixedly connected to the upper surfaces of the corresponding sliding seats. Push block grooves are formed in the outer walls of the two sliding seats.

[0014] Preferably, push plates are slidably connected to the interiors of the two push block grooves. Second limiting plate grooves are formed in the lower surfaces of the two sliding seats;

[0015] Wherein, the interiors of the two second limiting plate grooves communicate with the interiors of the corresponding push block grooves respectively. A plurality of first limiting plate grooves are formed in the interior of the installation base. Limiting plates are slidably connected to the interiors of the two second limiting plate grooves.

[0016] Preferably, the lower outer walls of the two limiting plates are respectively in contact with the inner walls of the corresponding first limiting plate grooves. One ends of the two push plates close to the limiting plates are respectively in contact with the outer walls of the corresponding limiting plates;

[0017] Wherein, three first return springs are arranged in each of the two push block grooves. The two ends of the six first return springs are respectively fixedly connected to the outer walls of the corresponding push plates and the inner walls of the push block grooves.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. For this combined current transformer, the two fixing block grooves at the lower end of the fixing seat in the limiting device are opposite to the fixing blocks and then inserted, so that the limiting block enters the corresponding first limiting block groove, completing the limitation of the fixing seat. In this way, the installation of the transformer is completed, realizing that there is no need to manually turn the threaded rod for installation. Such installation is fast and does not require extra manual operation, effectively reducing the workload of the staff while improving the installation efficiency of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0021] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 2 is a structure schematic diagram of the exterior of the fixing seat of the present utility model;

[0023] Figure 3 is a structure schematic diagram of the exterior of the installation base of the present utility model.

[0024] Reference numerals: 1. Installation base; 2. Limiting plate; 3. Sliding seat; 4. Push block groove; 5. Current transformer; 6. Fixing seat; 7. Sliding seat groove; 8. Fixed slider; 9. First limiting plate groove; 10. Push plate; 11. First return spring; 12. First limiting block groove; 13. Fixing block groove; 14. Second return spring; 15. Pulling plate; 16. Second limiting block groove; 17. Limiting block; 18. Fixing block; 19. Second limiting plate groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0027] In the description of the present utility model, "greater than", "less than", "exceeding", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. shall be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0029] Please refer to Figures 1-3 , the present utility model provides a technical solution: a combined current transformer, including an installation base 1;

[0030] A limiting device is arranged on the installation base 1;

[0031] The limiting device includes a current transformer 5, a fixed seat 6 and two fixing blocks 18. Second limiting block grooves 16 are formed in the outer walls of the opposite surfaces of the two fixing blocks 18. Limiting blocks 17 are slidably connected to the interiors of the two second limiting block grooves 16. The current transformer 5 is installed on the upper surface of the fixed seat 6. Two fixing block grooves 13 are formed in the lower surface of the fixed seat 6. The outer walls of the two fixing blocks 18 are respectively slidably connected to the interiors of the corresponding fixing block grooves 13. First limiting block grooves 12 are formed in the interiors of the two fixing block grooves 13. The outer walls of the two limiting blocks 17 are respectively in contact with the inner walls of the corresponding first limiting block grooves 12. Pulling plates 15 are slidably connected to the interiors of the grooves formed in the outer walls of the two fixing blocks 18. One ends of the two pulling plates 15 close to the limiting blocks 17 slide into the interiors of the fixing blocks 18 and are fixedly connected to the outer walls of the corresponding limiting blocks 17. Three second return springs 14 are arranged in each of the two fixing blocks 18. The two ends of the six second return springs 14 are respectively fixedly connected to the inner walls of the corresponding fixing blocks 18 and the outer walls of the limiting blocks 17. The lower outer walls of the fixed seat 6 are respectively in contact with the upper surfaces of the fixing blocks on both sides of the outer walls of the corresponding fixing blocks 18.

[0032] Among them, sliding seat grooves 7 are provided on the inner walls of both sides of the installation base 1. Fixed sliders 8 are slidably connected inside the two sliding seat grooves 7. The bolts threadedly connected to the outer walls of both sides of the installation base 1 extend threadedly into the grooves provided on the outer walls of the fixed sliders 8. Two sliding seats 3 are slidably connected inside the two sliding seat grooves 7. The lower surfaces of the two fixed blocks 18 are fixedly connected to the upper surfaces of the corresponding sliding seats 3 respectively. Push block grooves 4 are provided on the outer walls of the two sliding seats 3. Push plates 10 are slidably connected inside the two push block grooves 4. Second limit plate grooves 19 are provided on the lower surfaces of the two sliding seats 3. The interiors of the two second limit plate grooves 19 communicate with the interiors of the corresponding push block grooves 4 respectively. A plurality of first limit plate grooves 9 are provided inside the installation base 1. Limit plates 2 are slidably connected inside the two second limit plate grooves 19. The lower outer walls of the two limit plates 2 are in contact with the inner walls of the corresponding first limit plate grooves 9 respectively. The ends of the two push plates 10 close to the limit plates 2 are in contact with the outer walls of the corresponding limit plates 2 respectively. Three first return springs 11 are provided inside the two push block grooves 4. The two ends of the six first return springs 11 are fixedly connected to the outer walls of the corresponding push plates 10 and the inner walls of the push block grooves 4 respectively.

[0033] Further, when using the device, it is started by connecting to an external power supply. First, pull the push plate 10 upward to drive the first return spring 11 to contract and at the same time drive the limit plate 2 upward. Then, when the limit plate 2 moves upward, the other end of it is disengaged from the interior of the first limit plate groove 9. Then, push the sliding seat 3 to adjust the distance between the two sliding seats 3. Then, after adjustment, align the two fixed block grooves 13 at the lower end of the fixed seat 6 with the fixed blocks 18 and insert them. Then, the limit block 17 enters the interior of the corresponding first limit block groove 12, completing the limitation of the fixed seat 6, thus completing the installation of the mutual inductor 5, achieving the installation without manually screwing the threaded rod.

[0034] Further, when it is necessary to disassemble the mutual inductor 5, pull the pull plate 15 to move in the opposite direction to drive the second return spring 14 to contract and at the same time drive the limit block 17 to move in the opposite direction. Then, due to the limit block 17 moving in the opposite direction, the outer wall of it is disengaged from the interior of the first limit block groove 12. Then, pull the mutual inductor 5 to remove the fixed seat 6 and the mutual inductor 5 from the fixed block 18.

[0035] Through the relative insertion of the two fixing block grooves 13 at the lower end of the fixing seat 6 in the limiting device with the fixing blocks 18, the limiting block 17 then enters the corresponding first limiting block groove 12, completing the limitation of the fixing seat 6. In this way, the installation of the mutual inductor 5 is completed, achieving the installation without manually screwing the threaded rod. Such installation is fast, without additional manual operation, effectively reducing the workload of the staff while improving the installation efficiency of the mutual inductor 5. By pulling the pull plate 15 to move in the opposite direction, while driving the second return spring 14 to contract and driving the limiting block 17 to move in the opposite direction, and then through the opposite movement of the limiting block 17, the outer wall thereof is separated from the inner part of the first limiting block groove 12. Then, by pulling the mutual inductor 5, the fixing seat 6 and the mutual inductor 5 can be removed from the fixing block 18. This facilitates the disassembly of the mutual inductor 5, avoiding the need for the staff to use tools to disassemble it, effectively improving the disassembly efficiency of the mutual inductor 5 and at the same time improving the practicality of the equipment.

[0036] Working principle: First, pull the push plate 10 upward to drive the first return spring 11 to contract while driving the limiting plate 2 upward. Then, the limiting block 17 moves upward and the other end thereof is separated from the inner part of the first limiting plate groove 9. Then, adjust the sliding seat 3 to adjust the distance between the two sliding seats 3. After adjustment, the two fixing block grooves 13 at the lower end of the fixing seat 6 are opposite to the fixing blocks 18 and then inserted, so that the limiting block 17 enters the corresponding first limiting block groove 12, completing the limitation of the fixing seat 6. In this way, the installation of the mutual inductor 5 is completed, achieving the installation without manually screwing the threaded rod. Then, when it is necessary to disassemble the mutual inductor 5, pull the pull plate 15 to move in the opposite direction to drive the second return spring 14 to contract while driving the limiting block 17 to move in the opposite direction. Then, through the opposite movement of the limiting block 17, the outer wall thereof is separated from the inner part of the first limiting block groove 12. Then, by pulling the mutual inductor 5, the fixing seat 6 and the mutual inductor 5 can be removed from the fixing block 18.

[0037] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. A combined current transformer, comprising a mounting base (1), characterized in that: A limiting device is provided on the installation base (1); The limiting device includes an instrument transformer (5), a fixed seat (6) and two fixing blocks (18). Second limiting block grooves (16) are formed in the outer walls of the opposite surfaces of the two fixing blocks (18). Limiting blocks (17) are slidably connected to the interiors of the two second limiting block grooves (16). The instrument transformer (5) is installed on the upper surface of the fixed seat (6), and two fixing block grooves (13) are formed in the lower surface of the fixed seat (6); Among them, the outer walls of the two fixing blocks (18) are respectively slidably connected to the interiors of the corresponding fixing block grooves (13). First limiting block grooves (12) are formed in the interiors of the two fixing block grooves (13). Pulling plates (15) are slidably connected to the interiors of the grooves formed in the outer walls of the two fixing blocks (18). Three second return springs (14) are provided in each of the two fixing blocks (18).

2. The combined current transformer according to claim 1, characterized in that: The outer walls of the two limiting blocks (17) are respectively in contact with the inner walls of the corresponding first limiting block grooves (12). One end of each of the two pulling plates (15) close to the limiting block (17) slidably extends into the fixing block (18) and is fixedly connected to the outer wall of the corresponding limiting block (17); Among them, the two ends of the six second return springs (14) are respectively fixedly connected to the inner wall of the corresponding fixing block (18) and the outer wall of the limiting block (17). The lower outer wall of the fixed seat (6) is respectively in contact with the upper surfaces of the two fixing blocks on both sides of the outer wall of the corresponding fixing block.

3. The combined current transformer according to claim 1, wherein: Sliding seat grooves (7) are formed in the inner walls on both sides of the installation base (1). Fixed sliders (8) are slidably connected to the interiors of the two sliding seat grooves (7); Among them, the bolts threadedly connected to the outer walls on both sides of the installation base (1) threadedly extend into the grooves formed in the outer walls of the fixed sliders (8).

4. The combined current transformer according to claim 3, characterized in that: Two sliding seats (3) are slidably connected to the interiors of the two sliding seat grooves (7); Among them, the lower surfaces of the two fixing blocks (18) are respectively fixedly connected to the upper surfaces of the corresponding sliding seats (3). Push block grooves (4) are formed in the outer walls of the two sliding seats (3).

5. The combined current transformer according to claim 4, wherein: Push plates (10) are slidably connected to the interiors of the two push block grooves (4). Second limiting plate grooves (19) are formed in the lower surfaces of the two sliding seats (3); Among them, the interiors of the two second limiting plate grooves (19) communicate with the interiors of the corresponding push block grooves (4). A plurality of first limiting plate grooves (9) are formed in the interior of the installation base (1). Limiting plates (2) are slidably connected to the interiors of the two second limiting plate grooves (19).

6. The combined current transformer according to claim 5, characterized in that: The lower outer walls of the two limiting plates (2) are respectively in contact with the inner walls of the corresponding first limiting plate grooves (9). One end of each of the two push plates (10) close to the limiting plate (2) is in contact with the outer wall of the corresponding limiting plate (2); Among them, three first return springs (11) are provided in the interiors of the two push block grooves (4). The two ends of the six first return springs (11) are respectively fixedly connected to the outer wall of the corresponding push plate (10) and the inner wall of the push block groove (4).

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