Current protection assembly for low-voltage distribution network

Abstract

The utility model discloses a low-voltage power distribution network current protection assembly, which comprises an air switch, wiring grooves are uniformly arranged on one side of the top of the air switch, one side wall in each wiring groove is movably connected with a push plate, the other side of the top of the air switch is provided with a plurality of buckles, and the buckles are movably connected with the push plate. One side wall of the top of the air switch is provided with a wire clamping screw, and one side wall of the middle part of the air switch is fixedly provided with an indicating lamp. The beneficial effects of the utility model are that the push handle is provided with the sliding groove, when a worker carries out maintenance on the air switch, the worker only needs to push the protection block to move in the sliding groove of the push handle and push the protection block into the clamping groove arranged on the limiting plate, and then the push handle can be limited; and an electrician can limit closing of the push handle more conveniently and flexibly during maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of protection components, in particular to a current protection component for a low-voltage distribution power grid. Background Technique

[0002] Low-voltage power supply systems are widely used in industrial, civil and other fields. In order to ensure the safe and reliable operation of low-voltage power supply systems, corresponding protection devices must be installed. Low-voltage power distribution consists of a distribution substation, high-voltage distribution lines, distribution transformers, low-voltage distribution lines, and corresponding control and protection equipment.

[0003] Chinese Patent with publication number CN210692463U discloses a low-voltage distribution protection device against electric leakage, including an air switch. One end of the switch is provided with a first limit hole through it, and a second limit hole is opened on the outer shell of the air switch.

[0004] Although the above patent installs a limit bolt on the switch through the first limit hole during use, and the switch is prevented from closing by means of the limit bolt, thereby avoiding the circuit from being connected and causing no harm to maintenance personnel, due to the overcrowding of electronic components installed in the low-voltage distribution box, it is inconvenient to pull out the limit bolt from the first limit hole opened on the side wall of the switch during use, resulting in the inconvenience for electricians to operate the limit bolt to limit the closing of the switch. Therefore, a new type of current protection component for a low-voltage distribution power grid is urgently needed to solve these problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The technical problem to be solved by the utility model is to provide a current protection component for a low-voltage distribution power grid that can quickly prevent the push handle from closing, aiming at the current situation of the prior art.

[0007] (2) Technical Solutions

[0008] The utility model is realized through the following technical solutions: The utility model provides a current protection component for a low-voltage distribution power grid, including an air switch. On one side of the top of the air switch, wiring grooves are evenly opened. On one side wall of each wiring groove, a push plate is movably connected. On the other side of the top of the air switch, a plurality of buckles are arranged. On one side wall of the top of the air switch, a wire clamping screw is installed. On one side wall of the middle of the air switch, an indicator light is fixed. Below the indicator light on the air switch, a limit plate is provided. A card slot is opened on the limit plate. A push handle is connected to the limit plate. A sliding groove is opened on the push handle, and a protective block is installed in the sliding groove.

[0009] Furthermore, assembly screws are symmetrically arranged on both side walls of the air switch, and a buckle groove is opened on the back of the air switch.

[0010] By adopting the above technical solution, the assembled screw can fix the air switch better, and the buckle groove can make it more convenient for electricians to buckle the air switch on the track of the low-voltage distribution box.

[0011] Furthermore, the wiring groove is formed on the air switch, the wiring groove is slidably connected with the push plate, and wiring terminals are arranged in the wiring groove.

[0012] By adopting the above technical solution, the connection groove can make it more convenient for electricians to connect wires to the air switch, and the push plate can fix the wires in the wiring groove to prevent short circuits caused by loose wires.

[0013] Furthermore, the assembled screw is threadedly connected with the air switch, the assembled screw is made of stainless steel, and the buckle groove is formed on the air switch.

[0014] By adopting the above technical solution, the assembled screw can prevent the air switch from loosening, and the air switch can isolate the current to prevent electrical appliances from being damaged by high current.

[0015] Furthermore, the air switch is snap-connected with the buckle, the buckle is made of PC plastic material, and the wire clamping screw is rotatably connected with the push plate.

[0016] By adopting the above technical solution, the buckle can firmly clamp the buckle groove of the air switch on the track in the low-voltage distribution box to prevent the air switch from falling off the track, and rotating the wire clamping screw can better drive the push plate to move in the wiring groove.

[0017] Furthermore, the air switch is threadedly connected with the wire clamping screw, the air switch is bolted to the indicator light, and the wire clamping screw is made of stainless steel.

[0018] By adopting the above technical solution, the wire clamping bolt can move more stably in the air switch, and the indicator light can better remind electricians of the closed state of the air switch.

[0019] Furthermore, the limiting plate is adhesively connected to the air switch, the limiting plate is in an arc-shaped structure, the clamping groove is formed on the limiting plate, and the clamping groove is snap-connected with the protection block.

[0020] By adopting the above technical solution, the air switch can fix the limiting plate more firmly, and the clamping groove can make the protection block tightly clamped in the limiting plate, which is convenient for electricians to prevent the push handle from closing and connecting the circuit when overhauling the air switch, thus improving the safety of electricians during overhaul.

[0021] Further, the limiting plate is rotatably connected to the push handle. The push handle is made of ABS plastic material. The sliding groove is formed on the push handle. The protective block is slidably connected to the sliding groove. The protective block is of a rectangular structure.

[0022] By adopting the above technical solution, the push handle can be more convenient for an electrician to manually control the closing or opening of the air switch. The sliding groove can be more convenient for the electrician to push the protective block to move in the push handle, making the operation of preventing the push handle from closing more convenient when the electrician repairs the air switch.

[0023] (III) Beneficial effects

[0024] The utility model has the following beneficial effects compared with the prior art:

[0025] To solve the problem that in the process of using the existing current protection component of the low-voltage distribution power grid, due to the overcrowding of electronic components installed in the low-voltage distribution box, it is inconvenient to extract the limiting bolt from the first limiting hole opened on the side wall of the switch during use, resulting in the inconvenient operation of the electrician to limit the closing of the switch by operating the limiting bolt. The utility model has a sliding groove opened on the push handle. When the staff repairs the air switch, only need to push the protective block to move in the sliding groove of the push handle and push the protective block into the clamping groove opened on the limiting plate to limit the push handle, making the operation of limiting the closing of the push handle by the electrician during maintenance more convenient and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a current protection component of a low-voltage distribution power grid according to the utility model;

[0027] Figure 2 is a top view of a current protection component of a low-voltage distribution power grid according to the utility model;

[0028] Figure 3 is a current protection component of a low-voltage distribution power grid according to the utility model Figure 1 The enlarged view of part A therein.

[0029] The description of the reference numerals in the drawings is as follows:

[0030] 1. Air switch; 2. Wiring groove; 3. Push pressing plate; 4. Buckle; 5. Clamping screw; 6. Indicator light; 7. Limiting plate; 8. Push handle; 9. Clamping groove; 10. Sliding groove; 11. Protective block; 12. Assembly screw; 13. Buckle groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] As Figures 1 - 3 shown, a current protection component for a low-voltage distribution power grid in this embodiment includes an air switch 1. A wiring groove 2 is evenly opened on one side of the top of the air switch 1. A push plate 3 is movably connected to one side wall of each wiring groove 2. The connection groove can make it more convenient for electricians to connect the wiring to the air switch 1. The push plate 3 can fix the wiring in the wiring groove 2 to prevent the wiring from loosening and causing a short circuit. A plurality of buckles 4 are arranged on the other side of the top of the air switch 1. A wire clamping screw 5 is installed on one side wall of the top of the air switch 1. The buckle 4 can more firmly clamp the buckle groove 13 of the air switch 1 on the track in the low-voltage distribution box to prevent the air switch 1 from falling off the track. Rotating the wire clamping screw 5 can better drive the push plate 3 to move in the wiring groove 2. A warning light 6 is fixed on one side wall of the middle of the air switch 1. The wire clamping bolt can move more stably in the air switch 1. The warning light 6 can better remind the electrician of the closed state of the air switch 1. A limit plate 7 is arranged below the warning light 6 on the air switch 1. A card slot 9 is opened on the limit plate 7. A push handle 8 is connected to the limit plate 7. A sliding groove 10 is opened on the push handle 8. A protection block 11 is installed in the sliding groove 10. The push handle 8 can make it more convenient for the electrician to manually control the air switch 1 to close or disconnect the circuit. The sliding groove 10 can make it more convenient for the electrician to push the protection block 11 to move in the push handle 8, making the operation of preventing the push handle 8 from closing more convenient when the electrician repairs the air switch 1.

[0033] As Figures 1 - 3As shown in the figure, in this embodiment, assembly screws 12 are symmetrically arranged on both side walls of the air switch 1. A buckle groove 13 is formed on the back of the air switch 1. The assembly screws 12 can better fix the air switch 1. The buckle groove 13 can make it more convenient for electricians to buckle the air switch 1 on the track of the low-voltage distribution box. The wiring groove 2 is formed on the air switch 1. The wiring groove 2 is slidably connected to the push plate 3. Wiring terminals are arranged in the wiring groove 2. The assembly screws 12 are threadedly connected to the air switch 1. The assembly screws 12 are made of stainless steel. The buckle groove 13 is formed on the air switch 1. The assembly screws 12 can prevent the air switch 1 from loosening. The air switch 1 can isolate the current and prevent electrical appliances from being damaged due to high current. The air switch 1 is snap-connected to the buckle 4. The buckle 4 is made of PC plastic. The wire clamping screw 5 is rotatably connected to the push plate 3. The air switch 1 is threadedly connected to the wire clamping screw 5. The air switch 1 is bolted to the indicator light 6. The wire clamping screw 5 is made of stainless steel. The limiting plate 7 is adhesively connected to the air switch 1. The limiting plate 7 is in an arc-shaped structure. A clamping groove 9 is formed on the limiting plate 7. The clamping groove 9 is snap-connected to the protection block 11. The air switch 1 can more firmly fix the limiting plate 7. The clamping groove 9 can make the protection block 11 tightly stuck in the limiting plate 7, which is convenient for electricians to prevent the push handle 8 from closing and connecting the circuit when overhauling the air switch 1, improving the safety during the electrician's overhaul. The limiting plate 7 is rotatably connected to the push handle 8. The push handle 8 is made of ABS plastic. A sliding groove 10 is formed on the push handle 8. The protection block 11 is slidably connected to the sliding groove 10. The protection block 11 is in a rectangular structure.

[0034] The specific implementation process of this embodiment is as follows: When in use, first install the air switch 1 on the track in the low-voltage distribution box through the buckle groove 13. The buckle 4 can tightly fix the air switch 1 on the track to prevent it from falling off. The wiring groove 2 is convenient for electricians to insert the wiring into the air switch 1. Rotating the wire clamping screw 5 can drive the push plate 3 to move to fix the wiring in the wiring groove 2. Through the sliding groove 10 formed on the push handle 8, when the staff repairs the air switch 1, only need to push the protection block 11 to move it in the sliding groove 10 of the push handle 8 and push the protection block 11 into the clamping groove 9 formed on the limiting plate 7 to limit the push handle 8, making the operation of restricting the closing of the push handle 8 during the electrician's overhaul more convenient and flexible.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A current protection component for a low-voltage distribution power grid, characterized in that: It includes an air switch (1). On one side of the top of the air switch (1), wiring grooves (2) are evenly formed. On one side wall of each wiring groove (2), a push plate (3) is movably connected. On the other side of the top of the air switch (1), a plurality of buckles (4) are provided. On one side wall of the top of the air switch (1), a wire clamping screw (5) is installed. On one side wall of the middle of the air switch (1), an indicator light (6) is fixed. Below the indicator light (6) on the air switch (1), a limiting plate (7) is provided. A clamping groove (9) is formed on the limiting plate (7). A push handle (8) is connected to the limiting plate (7). A sliding groove (10) is formed on the push handle (8). A protective block (11) is installed in the sliding groove (10).

2. The current protection component for a low-voltage distribution power grid according to claim 1, wherein: On both side walls of the air switch (1), assembly screws (12) are symmetrically arranged. A buckling groove (13) is formed on the back of the air switch (1).

3. The current protection component for a low-voltage distribution power grid according to claim 1, characterized in that: The wiring groove (2) is formed on the air switch (1). The wiring groove (2) is slidably connected with the push plate (3). Wiring terminals are arranged in the wiring groove (2).

4. The current protection component for a low-voltage distribution power grid according to claim 2, characterized in that: The assembly screw (12) is threadedly connected with the air switch (1). The assembly screw (12) is made of stainless steel. The buckling groove (13) is formed on the air switch (1).

5. The current protection component for a low-voltage distribution power grid according to claim 1, characterized in that: The air switch (1) is snap-connected with the buckle (4). The buckle (4) is made of PC plastic. The wire clamping screw (5) is rotatably connected with the push plate (3).

6. A current protection component for a low-voltage distribution power grid according to claim 1, characterized in that: The air switch (1) is threadedly connected with the wire clamping screw (5). The air switch (1) is bolt-connected with the indicator light (6). The wire clamping screw (5) is made of stainless steel.

7. A current protection component for a low-voltage distribution power grid according to claim 1, characterized in that: The limiting plate (7) is adhesively connected with the air switch (1). The limiting plate (7) is of an arc-shaped structure. The clamping groove (9) is formed on the limiting plate (7). The clamping groove (9) is snap-connected with the protective block (11).

8. The current protection component for a low-voltage distribution power grid according to claim 1, wherein: The limiting plate (7) is rotatably connected with the push handle (8). The push handle (8) is made of ABS plastic. The sliding groove (10) is formed on the push handle (8). The protective block (11) is slidably connected with the sliding groove (10). The protective block (11) is of a rectangular structure.

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