Rapidly-assembled current transformer

Abstract

The utility model discloses a quick assembly current transformer, specifically relates to current transformer technical field, including mounting seat and two casing, and the two casing is located in mounting seat front side and rear side respectively, the bottom end of mounting seat is fixedly connected with the bottom frame, the inside of bottom frame is movably provided with four vertical plate, and the vertical plate is fixed in the bottom frame. The top ends of the four vertical plates are fixedly connected with the two shells correspondingly, two tooth plates are movably arranged in the bottom frame, and transverse plates are fixedly connected to the ends, opposite to each other, of the two tooth plates. By rotating the handle, the four clamping blocks are driven to move out of the four vertical plates respectively, fixation between the two shells and the bottom frame is relieved, the two shells are moved upwards to be away from the mounting base, finally, electronic elements in the mounting base and the two shells are overhauled, the two shells are rapidly mounted in the same way, operation is easy, and maintenance is convenient. The mutual inductor body can be conveniently mounted and dismounted, and the maintenance difficulty and complexity are reduced.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, and more specifically, to a quick-assembly current transformer. Background Technology

[0002] A current transformer is an instrument that measures current by converting a large primary current into a small secondary current based on the principle of electromagnetic induction. It consists of a closed iron core and windings. The primary winding has very few turns and is connected in series with the circuit whose current needs to be measured; therefore, it often carries the entire current of the circuit. The secondary winding has more turns and is connected in series with the measuring instrument and protection circuit. Currently, current transformers are typically directly fixed to the base with bolts. During operation, the equipment generates vibrations, and if the bolts are not properly secured, they may loosen over time due to vibration.

[0003] A search revealed that Chinese patent CN215578164U discloses a current transformer. After the fixing plate is fixed to the base plate by the rotating sleeve, the air in the groove is drawn out by the airbag to generate negative pressure, which strengthens the adsorption between the rotating sleeve and the screw, prevents the rotating sleeve from loosening, and improves the stability of the rotating sleeve in fixing the fixing plate and the base plate.

[0004] When the aforementioned current transformer is in use, the bottom of the transformer body is fixedly connected to the mounting plate. When the electronic components inside the transformer body are damaged, it is inconvenient to disassemble the transformer body. It is difficult for staff to directly access the damaged electronic components inside, which increases the difficulty and complexity of maintenance. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a quick-assembly current transformer, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-assembly current transformer, comprising a mounting base and two housings, with the two housings located on the front and rear sides of the mounting base respectively. A bottom frame is fixedly connected to the bottom end of the mounting base. Four upright plates are movably arranged inside the bottom frame, and the top ends of the four upright plates are fixedly connected to the two housings respectively. Two toothed plates are movably arranged inside the bottom frame. A horizontal plate is fixedly connected to one opposite end of each of the two toothed plates. Two locking blocks are fixedly connected to one facing side of each of the two horizontal plates, and one end of each of the four locking blocks extends into the interior of the four upright plates respectively.

[0007] Furthermore, two sliding rods are fixedly connected inside the bottom frame, and one end of each sliding rod passes through two horizontal plates.

[0008] As can be seen, in the above technical solution, the two horizontal plates slide on the two sliding rods, which can prevent the two horizontal plates from deflecting when they move horizontally.

[0009] Furthermore, a rotating assembly is provided between the two toothed plates, the rotating assembly including a first rotating shaft, a gear, a first bevel gear, a second bevel gear, and a second rotating shaft.

[0010] Furthermore, the bottom end of the first rotating shaft is movably connected to the bottom frame via a bearing, and both the gear and the first bevel gear are fixedly sleeved on the first rotating shaft, with the first bevel gear meshing with the second bevel gear, and the front end of the second rotating shaft being fixedly connected to the second bevel gear.

[0011] It can be seen that the above technical solution is designed to facilitate the movement of the two toothed plates in opposite directions.

[0012] Furthermore, a handle is fixedly connected to the rear end of the second rotating shaft, and the handle is movably connected to the bottom frame via a bearing.

[0013] It can be seen that the above technical solution is designed to facilitate the rotation of the second rotating shaft.

[0014] Furthermore, sealing gaskets are fixedly connected to the opposing sides of both housings, and the opposing sides of both sealing gaskets are in contact with the mounting base.

[0015] As can be seen, in the above technical solution, the two sealing gaskets can improve the sealing between the outer shell and the mounting base, effectively preventing dust from entering the mounting base.

[0016] Furthermore, four protective cylinders are fixedly connected inside the mounting base, and four buffer pads are glued to the opposite side of the mounting base and the bottom frame.

[0017] As can be seen, the above technical solution aims to prevent the bolts from loosening.

[0018] The technical effects and advantages of this utility model are as follows:

[0019] 1. This utility model allows four locking blocks to be moved out of the four upright plates by rotating the handle, thereby releasing the fixation between the two outer shells and the bottom frame, moving the two outer shells upward and away from the mounting base, and finally inspecting the electronic components inside the mounting base and the two outer shells. Similarly, the two outer shells can be quickly installed. The operation is simple and convenient for installing and disassembling the current transformer body, reducing the difficulty and complexity of maintenance.

[0020] 2. This utility model uses bolts to pass through the mounting base and the bottom frame, with buffer pads fitted on the bolts. The buffer pads improve the stability of the bolts, thus preventing them from loosening. At the same time, the protective sleeve protects the bolts. Similarly, other bolts are installed, thus fixing the mounting base. The structure is simple and easy to use. Attached Figure Description

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a bottom view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the assembly structure of the mounting base and the bottom frame of this utility model;

[0025] Figure 4 This is a schematic diagram of the assembly structure of the outer shell and the upright plate of this utility model;

[0026] Figure 5 This is a cross-sectional view of the bottom frame and a schematic diagram of the rotating component assembly structure of this utility model.

[0027] Figure 6 This is a schematic diagram of the rotating component structure of this utility model.

[0028] In the diagram: 1. Mounting base; 2. Housing; 3. Base frame; 4. Buffer pad; 5. Vertical plate; 6. Sealing gasket; 7. Protective cylinder; 8. Rotating assembly; 9. Toothed plate; 10. Horizontal plate; 11. Locking block; 12. Slide rod; 801. First rotating shaft; 802. Gear; 803. First bevel gear; 804. Second bevel gear; 805. Second rotating shaft; 806. Handle. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Refer to the instruction manual appendix Figure 1-6 This embodiment of a quick-assembly current transformer includes a mounting base 1 and two housings 2, with the two housings 2 located on the front and rear sides of the mounting base 1 respectively. A bottom frame 3 is fixedly connected to the bottom end of the mounting base 1. Four upright plates 5 are movably arranged inside the bottom frame 3, and the top ends of the four upright plates 5 are fixedly connected to the two housings 2 respectively. Two toothed plates 9 are movably arranged inside the bottom frame 3. A horizontal plate 10 is fixedly connected to the opposite end of each of the two toothed plates 9. Two locking blocks 11 are fixedly connected to the opposite side of each of the two horizontal plates 10, and one end of each of the four locking blocks 11 extends into the interior of the four upright plates 5 respectively.

[0031] Furthermore, two slide rods 12 are fixedly connected inside the bottom frame 3, and one end of each slide rod 12 passes through two horizontal plates 10. A rotating assembly 8 is provided between the two toothed plates 9. The rotating assembly 8 includes a first rotating shaft 801, a gear 802, a first bevel gear 803, a second bevel gear 804, and a second rotating shaft 805. The bottom end of the first rotating shaft 801 is movably connected to the bottom frame 3 through a bearing. The gear 802 and the first bevel gear 803 are both fixedly sleeved on the first rotating shaft 801, and the first bevel gear 803 meshes with the second bevel gear 804. The front end of the second rotating shaft 805 is fixedly connected to the second bevel gear 804, and the rear end of the second rotating shaft 805 is fixedly connected to a handle 806, and the handle 806 is movably connected to the bottom frame 3 through a bearing.

[0032] Furthermore, sealing gaskets 6 are fixedly connected to the opposite sides of the two outer shells 2, and the opposite sides of the two sealing gaskets 6 are in contact with the mounting base 1. The two sealing gaskets 6 can improve the sealing between the outer shell 2 and the mounting base 1, effectively preventing dust from entering the mounting base 1.

[0033] Furthermore, four protective cylinders 7 are fixedly connected inside the mounting base 1, and four buffer pads 4 are glued to the opposite sides of the mounting base 1 and the bottom frame 3.

[0034] The bolt passes through the mounting base 1 and the bottom frame 3, and the buffer pad 4 is fitted on the bolt. The buffer pad 4 can improve the stability of the bolt and prevent it from loosening. At the same time, the protective sleeve 7 protects the bolt. Similarly, other bolts are installed to fix the mounting base 1. The structure is simple and easy to use.

[0035] The usage method of this embodiment is as follows:

[0036] In use, the operator turns the handle 806, which drives the second shaft 805 and the second bevel gear 804 to rotate. Since the second bevel gear 804 meshes with the first bevel gear 803, the second bevel gear 804 can drive the first bevel gear 803 and the first shaft 801 to rotate, thereby driving the gear 802 to rotate. Since both toothed plates 9 mesh with the gear 802, the gear 802 can drive the two toothed plates 9 and the two horizontal plates 10 to move in opposite directions, thereby driving the four locking blocks 11 to move out of the four vertical plates 5 respectively, releasing the fixation between the two outer shells 2 and the bottom frame 3, moving the two outer shells 2 upward and away from the mounting base 1, and finally inspecting the electronic components in the mounting base 1 and the two outer shells 2. Similarly, the two outer shells 2 can be quickly installed. The operation is simple and convenient for installing and disassembling the transformer body, reducing the difficulty and complexity of maintenance. At the same time, the two horizontal plates 10 slide on the two sliding rods 12, which can prevent the two horizontal plates 10 from deflecting when moving horizontally.

[0037] It is worth noting that the mounting base 1 and the two housings 2 are respectively equipped with electronic components such as iron core, primary winding, secondary winding, insulation support and outgoing terminals. These electronic components can convert the large current on the primary side into a small current on the secondary side (such as 5A or 1A) so that measuring instruments and relay protection devices can accurately and safely measure and monitor. All contents not described in detail in the specification are existing technologies known to those skilled in the art.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-assembly current transformer, comprising a mounting base (1) and two housings (2), wherein the two housings (2) are respectively located on the front and rear sides of the mounting base (1), characterized in that: The bottom end of the mounting base (1) is fixedly connected to a bottom frame (3). The bottom frame (3) is movably provided with four upright plates (5), and the top ends of the four upright plates (5) are fixedly connected to two outer shells (2). The bottom frame (3) is movably provided with two toothed plates (9). The opposite ends of the two toothed plates (9) are fixedly connected with a horizontal plate (10). The opposite sides of the two horizontal plates (10) are fixedly connected with two locking blocks (11), and one end of each of the four locking blocks (11) extends into the interior of the four upright plates (5).

2. The rapid assembly current transformer according to claim 1, characterized in that: The bottom frame (3) is internally fixedly connected to two sliding rods (12), and one end of each sliding rod (12) passes through two horizontal plates (10).

3. The rapid assembly current transformer according to claim 1, characterized in that: A rotating assembly (8) is provided between the two toothed plates (9), the rotating assembly (8) including a first rotating shaft (801), a gear (802), a first bevel gear (803), a second bevel gear (804), and a second rotating shaft (805).

4. The rapid assembly current transformer according to claim 3, characterized in that: The bottom end of the first rotating shaft (801) is movably connected to the bottom frame (3) through a bearing. The gear (802) and the first bevel gear (803) are both fixedly sleeved on the first rotating shaft (801), and the first bevel gear (803) meshes with the second bevel gear (804). The front end of the second rotating shaft (805) is fixedly connected to the second bevel gear (804).

5. The rapid assembly current transformer according to claim 3, characterized in that: The rear end of the second rotating shaft (805) is fixedly connected to a handle (806), and the handle (806) is movably connected to the bottom frame (3) through a bearing.

6. The rapid assembly current transformer according to claim 1, characterized in that: Both of the two outer shells (2) are fixedly connected to a sealing gasket (6) on their opposite sides, and both of the opposite sides of the sealing gaskets (6) are in contact with the mounting base (1).

7. The rapid assembly current transformer according to claim 1, characterized in that: The mounting base (1) is internally fixedly connected with four protective cylinders (7), and four buffer pads (4) are glued to the opposite side of the mounting base (1) and the bottom frame (3).

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