Overload protection structure for safe electrical equipment line

Abstract

The utility model discloses an overload protection structure for a safety electrical equipment line, which comprises a fuse, the back of the fuse is provided with a clamping groove, a first clamping piece and a second clamping piece are symmetrically arranged, the opposite sides of the first clamping piece and the second clamping piece are in sliding clamping connection with the inner cavity of the clamping groove, and the first clamping piece and the second clamping piece are in sliding clamping connection with the inner cavity of the clamping groove. The limiting assembly is arranged between the first clamping piece and the second clamping piece, the limiting assembly is used for limiting the vertical height between the first clamping piece and the second clamping piece, a positioning rod is fixedly connected to the top of the inner wall of the clamping groove, and the outer wall of the positioning rod is slidably connected with an inner cavity of the positioning hole in a sleeving mode. According to the utility model, the fuse and the mounting assembly are cooperatively used, the first clamping piece and the second clamping piece can be stably clamped on the back surface of the fuse under the action of the limiting assembly, the positioning rod can improve the clamping stability of the fuse and the first clamping piece, the first clamping piece and the second clamping piece are relatively moved, and the clamping stability of the fuse and the mounting assembly is improved. Therefore, the fuse can be directly mounted or dismounted.

Description

Technical Field

[0001] The utility model relates to the field of line overload protection, and particularly relates to an overload protection structure for a safety-type electrical equipment line. Background Technique

[0002] The overload protection of an electrical equipment line is a protection measure used to prevent the electrical equipment line from being damaged or causing a safety accident due to overload. When the current in the electrical equipment line exceeds its rated current, the overload protection device will automatically cut off the power supply to protect the safety of the electrical equipment and the line.

[0003] The overload protection device usually uses a fuse to protect the electrical equipment line against overload. When the current flowing through the fuse is greater than its rated current, the fuse will break, and the fuse is a disposable device and cannot be used again after melting. Therefore, after the fuse breaks, it needs to be replaced.

[0004] When the existing fuse is installed, it is usually clamped on a fixing piece, and the fixing piece is installed inside the electrical cabinet by screws. Therefore, when replacing the fuse, it is necessary to disassemble the fixing piece and then slide the fuse off, which reduces the installation and disassembly efficiency of the fuse and is not convenient for directly installing or disassembling the fuse on the fixing piece. Content of the Utility Model

[0005] The purpose of the utility model is to provide an overload protection structure for a safety-type electrical equipment line to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an overload protection structure for a safety-type electrical equipment line, including a fuse, and a card slot is opened on the back of the fuse;

[0007] An installation component is arranged on the back of the fuse, and the installation component includes:

[0008] A first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are symmetrically arranged, and the opposite sides of the first clamping piece and the second clamping piece are slidably clamped with the inner cavity of the card slot;

[0009] A limiting component is arranged between the first clamping piece and the second clamping piece, and the limiting component is used to limit the vertical height between the first clamping piece and the second clamping piece.

[0010] Preferably, a positioning rod is fixedly connected to the top of the inner wall of the card slot, a positioning hole is opened at the top of the first clamping piece, and the outer wall of the positioning rod is slidably sleeved with the inner cavity of the positioning hole.

[0011] Preferably, the limiting component includes:

[0012] A fixing plate and a fixing block, the fixing plate is fixedly installed inside the first clamping member, and the fixing block is fixedly installed inside the second clamping member;

[0013] A connecting plate and a limiting spring, the bottom of the connecting plate is fixedly connected to the fixing block, and the limiting spring is arranged on the side of the connecting plate facing away from the fixing block.

[0014] Preferably, a connecting groove matching the connecting plate is formed on the side of the fixing plate facing the fixing block. The top of the inner wall of the connecting groove is symmetrically and fixedly connected with fixing rods. The outer wall of the fixing rod is slidably sleeved with the limiting spring. A through hole is formed in the top of the connecting plate, and the outer wall of the fixing rod is slidably sleeved with the inner cavity of the through hole.

[0015] Preferably, a sliding hole is formed in the front of the connecting plate. A positioning bolt is threadedly installed at the bottom of the front of the fixing plate. The outer wall of the positioning bolt is slidably sleeved with the inner cavity of the sliding hole. A damping block is fixedly embedded on the side of the connecting plate, and one side of the damping block is attached to the inner wall of the connecting groove.

[0016] Preferably, screws are arranged on one side of the first clamping member and one side of the second clamping member. The first clamping member and the second clamping member are respectively fixedly connected to the fixing plate and the fixing block through screws. An installation block is fixedly connected to the side of the fixing plate, and a fixing bolt is arranged on one side of the installation block.

[0017] The technical effects and advantages of the present utility model:

[0018] The present utility model utilizes the cooperation mode of a fuse and an installation component. The installation component includes a first clamping member, a second clamping member, a limiting component and a positioning rod. Under the action of the limiting component, the first clamping member and the second clamping member can be stably clamped on the back of the fuse, and the positioning rod can improve the clamping stability of the fuse and the first clamping member. By relatively moving the first clamping member and the second clamping member, the fuse can be directly installed or disassembled. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 For the present utility model Figure 1 The enlarged schematic diagram of the structure at A in the figure.

[0021] Figure 3 It is a schematic diagram of the internal structure of the front of the fixing plate of the present utility model.

[0022] Figure 4 It is a schematic diagram of the internal structure of the side of a part of the first clamping member of the present utility model.

[0023] In the figure: 1. fuse; 2. mounting assembly; 21. first clamping member; 22. second clamping member; 23. limiting assembly; 231. fixing plate; 232. fixing block; 233. connecting plate; 234. limiting spring; 235. connecting groove; 236. fixing rod; 237. through hole; 238. sliding hole; 239. positioning bolt; 2310. damping block; 2311. screw; 2312. mounting block; 2313. fixing bolt; 24. positioning rod. Detailed implementation manners

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] The present invention provides an overload protection structure for a safety-type electrical equipment line as Figures 1-4 shown, which includes a fuse 1. A clamping groove is formed on the back surface of the fuse 1. An installation assembly 2 is arranged on the back surface of the fuse 1. The installation assembly 2 includes a first clamping member 21, a second clamping member 22 and a limiting assembly 23. The first clamping member 21 and the second clamping member 22 are symmetrically arranged. The opposite sides of the first clamping member 21 and the second clamping member 22 are slidably clamped with the inner cavity of the clamping groove. The opposite sides of the first clamping member 21 and the second clamping member 22 have bending parts, so that when they are clamped in the clamping groove, the fuse 1 can be clamped and limited. A positioning rod 24 is fixedly connected to the top of the inner wall of the clamping groove. A positioning hole is formed in the top of the first clamping member 21. The outer wall of the positioning rod 24 is slidably sleeved with the inner cavity of the positioning hole. The positioning rod 24 can improve the stability of the fuse 1 clamped outside the first clamping member 21. The limiting assembly 23 is arranged between the first clamping member 21 and the second clamping member 22. The limiting assembly 23 is used to limit the vertical height between the first clamping member 21 and the second clamping member 22. Under the action of the limiting assembly 23, the first clamping member 21 and the second clamping member 22 can maintain a relatively stable state to lock the fuse 1.

[0026] Furthermore, the limiting assembly 23 includes a fixing plate 231, a fixing block 232, a connecting plate 233 and a limiting spring 234. The fixing plate 231 is fixedly installed on the inner side of the first clamping member 21, the fixing block 232 is fixedly installed on the inner side of the second clamping member 22, the bottom of the connecting plate 233 is fixedly connected to the fixing block 232, the limiting spring 234 is arranged on the side of the connecting plate 233 away from the fixing block 232, and the fixing plate 231 is provided with a connecting groove 235 matching the connecting plate 233 on the side facing the fixing block 232, so that when the second clamping member 22 is pushed toward the first clamping member 21, the connecting plate 233 slides toward the inside of the connecting groove 235, and the distance between the first clamping member 21 and the second clamping member 22 is increased. When the distance is reduced, the fuse 1 can be directly slid and separated from the first clip 21 and the second clip 22, or the fuse 1 can be installed on the first clip 21 and the second clip 22. The top of the inner wall of the connecting groove 235 is symmetrically fixedly connected with a fixing rod 236, and the outer wall of the fixing rod 236 is slidably sleeved with the limit spring 234. A through hole 237 is provided on the top of the connecting plate 233, and the outer wall of the fixing rod 236 is slidably sleeved with the inner cavity of the through hole 237. The limit spring 234 can give the connecting plate 233 an elastic squeezing force, so that the first clip 21 and the second clip 22 have an elastic force to move in opposite directions, thereby making the first clip 21 and the second clip 22 have a force to move in opposite directions and be clamped in the slot.

[0027] Furthermore, a sliding hole 238 is provided on the front side of the connecting plate 233, and a positioning bolt 239 is installed on the bottom thread of the front side of the fixing plate 231. The outer wall of the positioning bolt 239 is slidably sleeved with the inner cavity of the sliding hole 238. The positioning bolt 239 can limit the connecting plate 233 in the connecting groove 235 to prevent the connecting plate 233 from directly sliding and separating from the fixing plate 231. A damping block 2310 is fixedly embedded on the side of the connecting plate 233, and one side of the damping block 2310 is in contact with the inner wall of the connecting groove 235. The damping block 2310 can improve the stability of the connection between the connecting plate 233 and the fixing plate 231 and reduce the frequency of its shaking.

[0028] Specifically, screws 2311 are provided on one side of the first clip 21 and one side of the second clip 22. The first clip 21 and the second clip 22 are respectively fixedly connected to the fixing plate 231 and the fixing block 232 by the screws 2311. By removing the screws 2311, the fixing plate 231 and the fixing block 232 can be removed. The side of the fixing plate 231 is fixedly connected with a mounting block 2312, and a fixing bolt 2313 is provided on one side of the mounting block 2312. The fixing plate 231 can be installed inside the electrical cabinet using the mounting block 2312 and the fixing bolt 2313.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A safety type overload protection structure for a circuit of an electrical device, comprising a fuse (1), wherein a slot is provided on the back of the fuse (1); It is characterized in that A mounting assembly (2) is provided on the back of the fuse (1), and the mounting assembly (2) comprises: A first clamping piece (21) and a second clamping piece (22), wherein the first clamping piece (21) and the second clamping piece (22) are symmetrically arranged, and the first clamping piece (21) and the second clamping piece (22) are slidably clamped with the inner cavity of the clamping slot at opposite sides thereof; A limiting component (23), the limiting component (23) being arranged between the first clamping component (21) and the second clamping component (22), the limiting component (23) being used to limit the vertical height between the first clamping component (21) and the second clamping component (22).

2. The overload protection structure for a safe electrical equipment circuit according to claim 1, characterized in that: A positioning rod (24) is fixedly connected to the top of the inner wall of the slot, a positioning hole is provided at the top of the first clamping member (21), and the outer wall of the positioning rod (24) is slidably sleeved with the inner cavity of the positioning hole.

3. The overload protection structure for a safe electrical equipment circuit according to claim 1, characterized in that: The limiting component (23) comprises: a fixing plate (231) and a fixing block (232), wherein the fixing plate (231) is fixedly mounted on the inner side of the first clamping member (21), and the fixing block (232) is fixedly mounted on the inner side of the second clamping member (22); A connecting plate (233) and a limiting spring (234), wherein the bottom of the connecting plate (233) is fixedly connected to the fixing block (232), and the limiting spring (234) is arranged on a side of the connecting plate (233) facing away from the fixing block (232).

4. The overload protection structure for a safe electrical equipment circuit according to claim 3 is characterized in that: A connecting groove (235) matching with the connecting plate (233) is provided on one side of the fixing plate (231) facing the fixing block (232); a fixing rod (236) is symmetrically fixedly connected to the top of the inner wall of the connecting groove (235); an outer wall of the fixing rod (236) is slidably sleeved with a limit spring (234); a through hole (237) is provided on the top of the connecting plate (233); and an outer wall of the fixing rod (236) is slidably sleeved with an inner cavity of the through hole (237).

5. The overload protection structure for a safe electrical equipment circuit according to claim 4, characterized in that: A sliding hole (238) is provided on the front side of the connecting plate (233); a positioning bolt (239) is threadedly installed on the bottom of the front side of the fixing plate (231); the outer wall of the positioning bolt (239) is slidably sleeved with the inner cavity of the sliding hole (238); a damping block (2310) is fixedly embedded on the side of the connecting plate (233); one side of the damping block (2310) is in contact with the inner wall of the connecting groove (235).

6. The overload protection structure for a safe electrical equipment circuit according to claim 3, characterized in that: One side of the first clamping member (21) and one side of the second clamping member (22) are both provided with screws (2311); the first clamping member (21) and the second clamping member (22) are respectively fixedly connected to the fixing plate (231) and the fixing block (232) via the screws (2311); a mounting block (2312) is fixedly connected to the side of the fixing plate (231); and a fixing bolt (2313) is provided on one side of the mounting block (2312).

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