A fixing clamp for a current transformer of a ring main unit

Abstract

The utility model discloses a kind of current transformers for ring main unit's fixed clamps, belong to electrical equipment installation technical field, including main body and slidable containment in the clamping assembly of main body inside, clamping assembly includes the upper clamping jaw and lower clamping block of mutual rotation connection, main body is equipped with the card plate of insertable, card plate is used for abutting and limiting the position of clamping assembly after inserting;Main body is rotatably connected with horizontal baffle, horizontal baffle can be rotated to block the card plate;Main body is also rotatably connected with second rotary column, second rotary column can be rotated to abut and lock horizontal baffle, to form a set of tool-free interlocking locking structure.The utility model solves the problem that tool is needed when fixed clamp is installed in prior art, operation is complicated, and efficiency is low, has the beneficial effects of tool-free quick installation, locking reliable, structure stable.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment installation, and in particular to a fixing clip for a current transformer used in a ring main unit. Background Technology

[0002] Ring main units (RMMs) are important switching devices in power systems, integrating various electrical components, among which the current transformer is a key component for current measurement and protection. To ensure the stable operation of the RMM and the accuracy of measurements, the current transformer must be reliably fixed in a designated position inside the cabinet, typically on an internal bracket or beam.

[0003] Currently, this type of fixing is generally achieved by using bolts or universal clamps. For example, installers need to use tools such as wrenches and screwdrivers to operate in the confined space inside the ring main unit, tightening each component of the fixing clamp one by one.

[0004] However, this tool-dependent installation method has significant shortcomings. On the one hand, the internal space of ring main units is compact and the wiring is complex, making tool-based installation inconvenient and greatly reducing on-site installation and maintenance efficiency. On the other hand, working in confined spaces makes it difficult to control the applied torque of tools, potentially leading to insufficient tightening force causing loosening, or excessive tightening force damaging components, making it difficult to guarantee installation quality. Therefore, how to design a tool-free, quick-operating, and reliable current transformer fixing clamp for ring main units has become an urgent technical problem to be solved in this field.

[0005] Therefore, this utility model proposes a fixing clip for current transformers in ring main units to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a fixing clip for current transformers in ring main units, aiming to improve the problems of existing fixing clips for current transformers in ring main units, which require tools for installation, are cumbersome to operate, have low installation efficiency, and have poor fixing reliability.

[0007] To achieve the above objectives, this utility model provides a fixing clamp for a current transformer in a ring main unit, comprising: a main body and a clamping assembly, wherein the clamping assembly is slidably housed inside the main body, and the clamping assembly includes an upper clamping jaw and a lower clamping block rotatably connected to each other; the clamping assembly also includes an adaptation component.

[0008] It also includes a card plate that can be inserted into the main body, a transverse baffle that is rotatably connected to the main body, and a second rotating column that is rotatably connected to the main body.

[0009] The clamping plate, after insertion, is used to abut against and limit the position of the clamping assembly; the transverse baffle is rotatable to block the clamping plate; the second rotating column is rotatable to abut against and lock the position of the transverse baffle. Through the sequential limiting cooperation between the clamping plate, the transverse baffle and the second rotating column, a tool-free interlocking locking structure is formed.

[0010] Preferably, a first rotating column and an outer wall block are fixed on the main body; the transverse baffle is rotatably connected to the first rotating column and can be rotated so that part of its structure is housed inside the outer wall block to block the card plate.

[0011] Preferably, the main body is provided with a vertical baffle, and the second rotating column is rotatably connected to the vertical baffle.

[0012] Preferably, the adaptation component includes a connecting column, a spring sleeved on the outer periphery of the connecting column, and a limiting block fixed to one end of the connecting column.

[0013] Preferably, the connecting column is slidably inserted into the upper clamping jaw, and the two ends of the spring abut against the upper clamping jaw and the limiting block, respectively.

[0014] Preferably, the limiting block is provided with an anti-slip groove.

[0015] Preferably, the upper jaw and the lower jaw are rotatably connected by a pin and together define an opening for clamping.

[0016] Preferably, the main body is also connected to a fixing column for providing additional support.

[0017] This utility model has the following beneficial effects:

[0018] 1. In this utility model, by setting a clamping component that can slide into the main body and designing an interlocking locking structure consisting of a pluggable card plate, a rotatable horizontal baffle and a rotatable second rotating column, the problems of the existing technology of fixing devices requiring tools, cumbersome operation and low installation efficiency are solved, and the effect of tool-free quick installation and locking is achieved.

[0019] 2. This utility model solves the problem in the prior art that the fixing clamp has poor adaptability to fixing frames of different sizes inside the ring main unit, which easily leads to loose clamping and unstable installation, by setting an adaptable component including a connecting column, a spring and a limiting block on the clamping component. It achieves the effect of automatically adapting to fixing frames of different sizes and providing reliable clamping force.

[0020] 3. This utility model, by setting a transverse baffle and a second rotating column that can be rotated and locked in sequence, and cooperating with a limiting block with anti-slip groove, solves the problem that the traditional fixing method is simple in structure and easy to loosen due to vibration, and achieves the effect of stable structure, reliable locking and strong vibration resistance. Attached Figure Description

[0021] Figure 1 This is a perspective view of a fixing clip for a current transformer used in a ring main unit, as proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the fixing post of the fixing clamp for the current transformer of the ring main unit proposed in this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of a limiting block for a fixing clamp of a current transformer for a ring main unit, as proposed in this utility model.

[0025] Figure 5 This is a schematic diagram of the clamping plate for a current transformer used in a ring main unit, as proposed in this utility model.

[0026] Legend:

[0027] 1. Main body; 2. Clamping assembly; 201. Upper gripper; 202. Lower gripper block; 203. First rotating column; 204. Horizontal baffle; 205. Outer wall block; 206. Vertical baffle; 207. Second rotating column; 208. Clamping plate; 3. Adaptive assembly; 301. Connecting column; 302. Spring; 303. Limiting block; 304. Anti-slip groove; 4. Fixing column. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1-5 This embodiment provides a fixing clip for a current transformer used in a ring main unit, which aims to solve the problems in the prior art where the fixing device requires tools for installation, is cumbersome to operate, and has poor adaptability to fixing frames of different sizes, resulting in unstable installation.

[0030] Specifically, it includes a main body 1 and a clamping assembly 2 that is slidably housed inside the main body 1. The main body 1 serves as the mounting base and locking platform for the entire device, and the clamping assembly 2 is used to clamp the fixed structure inside the ring main unit.

[0031] The clamping assembly 2 includes an upper jaw 201 and a lower clamping block 202 that are rotatably connected to each other. The upper jaw 201 and the lower clamping block 202 are rotatably connected by a pin and together define an opening for clamping.

[0032] To achieve tool-free locking of the clamping component 2 within the main body 1, the main body 1 is provided with an insertable card plate 208. After the clamping component 2 is slidably housed inside the main body 1, the card plate 208 is inserted into the main body 1. The card plate 208 is used to abut and limit the position of the clamping component 2.

[0033] A transverse baffle 204 is rotatably connected to the main body 1. After the transverse baffle 204 rotates, it is used to block the locking plate 208 to prevent the locking plate 208 from coming out. A second rotating column 207 is also rotatably connected to the main body 1. The second rotating column 207 then rotates to abut against and lock the position of the transverse baffle 204, thereby forming an interlocking locking structure.

[0034] The clamping assembly 2 also includes an adaptation assembly 3, which enables the clamping assembly 2 to adapt to different sizes of fixtures. The main body 1 is also connected to a fixing post 4, which provides additional support after installation and enhances the overall installation stability.

[0035] Specifically, when locking is required, first insert the clamping plate 208 into the main body 1 to abut against the clamping component 2. Then rotate the transverse baffle 204 so that the transverse baffle 204 rotates around the first rotating column 203 and enters the interior of the outer wall block 205. At this time, the plate of the transverse baffle 204 blocks behind the clamping plate 208, restricting the removal of the clamping plate 208. Next, rotate the second rotating column 207 so that the second rotating column 207 rotates around the vertical baffle 206 to a vertical state. At this time, the column of the second rotating column 207 blocks the side of the transverse baffle 204, thereby locking the transverse baffle 204 so that it cannot be rotated back, ensuring that the clamping component 2 can be quickly and reliably fixed without tools.

[0036] In order to enable the clamping assembly 2 to adapt to the fixed frame of different sizes and provide continuous clamping force, the adapting assembly 3 includes a connecting column 301, a spring 302 and a limiting block 303. The connecting column 301 is slidably inserted in the upper jaw 201, the spring 302 is sleeved on the outer periphery of the connecting column 301, and the two ends of the spring 302 abut against the upper jaw 201 and the limiting block 303 fixed at one end of the connecting column 301, respectively. Through the compression and rebound of the spring 302, the clamping size is adaptive.

[0037] To further enhance the friction during clamping and prevent position slippage caused by vibration or impact, an anti-slip groove 304 is provided on the surface of the limiting block 303 facing the object being clamped.

[0038] To provide additional support and enhance the stability of the overall structure after the device is installed, a fixing column 4 is also connected to the bottom of the main body 1.

[0039] Working principle: The main body 1 is fixed inside the ring main unit by clamping component 2 and adapting component 3.

[0040] First, rotate the upper jaw 201 and the lower jaw block 202 to separate them, and then fit them onto the outer wall of the fixing frame inside the ring main unit. Then close the upper jaw 201 and the lower jaw block 202. The bottom of the fixing frame inside the ring main unit will be supported on the inner wall of the lower jaw block 202. The top of the fixing frame inside the ring main unit will compress the limiting block 303 and the connecting column 301 upwards, so that the outer wall of the connecting column 301 slides inside the upper jaw 201 and compresses the spring 302, thereby adapting to the size of the outer wall of the fixing frame inside the ring main unit. The anti-slip groove 304 prevents slippage and misalignment during clamping.

[0041] After the upper jaw 201 and the lower jaw block 202 are closed, slide the outer walls of the upper jaw 201 and the lower jaw block 202 into the body 1. Then insert the clamping plate 208 into the body 1. Then rotate the transverse baffle 204 to make it rotate on the outer wall of the first rotating column 203, so that the transverse baffle 204 rotates into the outer wall block 205, limiting the outer wall of the clamping plate 208. Then rotate the second rotating column 207 to make it rotate on the outer wall of the vertical baffle 206, so that the second rotating column 207 rotates to a vertical state. Under the action of the second rotating column 207 and the transverse baffle 204, the clamping plate 208, the upper jaw 201 and the lower jaw block 202 are fixed inside the body 1. The body 1 fixes the upper jaw 201 and the lower jaw block 202 in a closed state. The body 1 can be installed without tools. After the installation is completed, the fixing column 4 is supported inside the ring network cabinet.

Claims

1. A fixing clip for a current transformer in a ring main unit, comprising: The main body (1) and the clamping assembly (2) are slidably housed inside the main body (1). The clamping assembly (2) includes an upper jaw (201) and a lower jaw (202) rotatably connected to each other. The main body (1) is characterized by having an insertable card plate (208) on it, which, after insertion, is used to abut against and limit the position of the clamping assembly (2). A transverse baffle (204) is rotatably connected to the main body (1), which is rotatable to block the card plate (208). A second rotating column (207) is also rotatably connected to the main body (1), which is rotatable to abut against and lock the position of the transverse baffle (204). The clamping assembly (2) also includes an adaptation assembly (3).

2. The fixing clip for the current transformer in a ring main unit according to claim 1, characterized in that, The main body (1) is fixed with a first rotating column (203) and an outer wall block (205); the transverse baffle (204) is rotatably connected to the first rotating column (203) and can be rotated so that part of its structure is housed inside the outer wall block (205) to block the card plate (208).

3. The fixing clip for the current transformer in a ring main unit according to claim 1, characterized in that, The main body (1) is provided with a vertical baffle (206), and the second rotating column (207) is rotatably connected to the vertical baffle (206).

4. The fixing clip for the current transformer in a ring main unit according to claim 1, characterized in that, The adaptation component (3) includes a connecting column (301), a spring (302) sleeved on the outer periphery of the connecting column (301), and a limiting block (303) fixed to one end of the connecting column (301).

5. The fixing clip for the current transformer in a ring main unit according to claim 4, characterized in that, The connecting column (301) slides through the upper gripper (201), and the two ends of the spring (302) abut against the upper gripper (201) and the limiting block (303) respectively.

6. The fixing clip for the current transformer in a ring main unit according to claim 4, characterized in that, The limiting block (303) is provided with an anti-slip groove (304).

7. The fixing clip for the current transformer in a ring main unit according to claim 1, characterized in that, The upper jaw (201) and the lower jaw (202) are rotatably connected by a pin and together define the opening for clamping.

8. The fixing clamp for the current transformer in a ring main unit according to claim 1, characterized in that, The main body (1) is also connected to a fixed column (4) for providing additional support.

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