Fuse type disconnecting switch

Abstract

The utility model provides a fuse type disconnecting switch. The fuse type disconnecting switch comprises an upper cover; a plurality of fuses are mounted in the upper cover, hollow holes through which the fuses can be observed are formed in the surface of the upper cover, a plurality of panels are mounted on the surface of the upper cover, and observation holes are formed in the panels; in an initial state, the panel is clamped and limited on the surface of the upper cover, and the observation hole is shielded by the upper cover below and cannot intersect or coincide with the hollow hole in the vertical direction; when the panel slides, the panel can slide to the position where the observation hole and the hollow hole intersect or coincide in the vertical direction, so that the fuse is detected through the observation hole. The fuse monitoring device is reliable in structure, good in contact, high in safety performance and convenient to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical equipment, and particularly relates to a fuse type isolating switch. Background Art

[0002] Among the power transmission and transformation equipment in the power system, the fuse-type disconnector mainly plays a role of safety isolation in the power grid. The main feature of the fuse-type disconnector is to open and close the circuit without load current to achieve short-circuit and overload protection of electrical equipment, but the line must be disconnected by other equipment before operation; the disconnector is a low-cost, easy-to-operate, and highly reliable disconnector protection product. The function of the fuse in the fuse-type disconnector is to melt the fuse with the heat generated by itself when the current exceeds the specified value, thereby disconnecting the circuit. After eliminating the circuit fault, the operator can quickly restore the working state of the circuit system by replacing the fuse.

[0003] During the use of the existing fuse-type disconnector, since there is no fuse monitoring device, the operator needs to judge whether the fuse is blown by observing the appearance of the fuse one by one or measuring whether it is conductive. Summary of the invention

[0004] The utility model solves the technical problem by adopting the following technical solutions:

[0005] The fuse-type disconnect switch is characterized by comprising an upper cover;

[0006] A plurality of fuses are installed inside the upper cover, a hollow hole for observing the fuses is provided on the surface of the upper cover, and a plurality of panels are installed on the surface of the upper cover, and observation holes are provided on the panels;

[0007] In the initial state, the panel is clamped and limited on the surface of the upper cover, and the observation hole is blocked by the upper cover below and cannot intersect or overlap with the hollow hole in the up and down directions; when the panel is slid, the panel can slide to a position where the observation hole intersects or overlaps with the hollow hole in the up and down directions, so that the fuse can be detected through the observation hole.

[0008] Furthermore, a blocking block is provided on the surface of the upper cover, a baffle plate cooperating with the blocking block is provided at the bottom of the panel, and a bending plate cooperating with one side of the upper cover is formed at one end of the panel, and the bending plate and the baffle plate cooperate to limit the panel on the surface of the upper cover.

[0009] Furthermore, the bending plate and the panel form an L-shaped structure, and the bending plate is installed in cooperation with the side of the upper cover.

[0010] Furthermore, when the baffle is inserted into the upper cover and is clamped and limited by the blocking block, the baffle bends and generates elasticity.

[0011] Furthermore, a buckle is provided on the side of the panel, and a slot is provided on the side of the upper cover, and the panel and the upper cover are fastened together by the cooperation between the buckle and the slot.

[0012] Furthermore, reinforcing ribs are provided at the position where the baffle plate contacts the panel.

[0013] Furthermore, when the panel is in the initial state, the panel above the hollow hole is made of transparent material for observing the matching condition between the fuse and the socket on the base.

[0014] Furthermore, it also includes a base, and the base and the upper cover are movably connected.

[0015] The advantages and positive effects of the utility model are:

[0016] 1. When the fuse monitoring device needs to be installed, the operator can push the panel to move the observation hole out and not be blocked by the upper cover, and mount the fuse monitoring device on the panel and the upper cover to monitor the conduction or blown state of the fuse. The utility model has the advantages of reliable structure, good contact, high safety performance, and convenient installation of the fuse monitoring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for the purpose of explanation and are not intended to limit the scope of the utility model. In addition, unless otherwise specified, these drawings are only intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0018] Figure 1 It is a structural schematic diagram of the fuse type isolating switch of the utility model;

[0019] Figure 2 It is a schematic diagram of the upper cover of the fuse type disconnector of the utility model;

[0020] Figure 3 A schematic diagram of a panel of a fuse-type disconnect switch of the utility model;

[0021] Figure 4 It is a schematic diagram of the panel of the fuse-type disconnect switch of the utility model in the initial state;

[0022] Figure 5 It is a schematic diagram of the panel of the fuse type disconnector of the utility model after being pushed. DETAILED DESCRIPTION

[0023] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked in only one place in the same drawing.

[0024] The following is combined Figures 1 to 5 To specifically illustrate the utility model.

[0025] The fuse-type disconnector provided in this embodiment includes an upper cover 1;

[0026] A plurality of fuses 3 are installed inside the upper cover 1, and a hollow hole 14 is provided on the surface of the upper cover 1 for observing the fuses 3. A plurality of panels 2 are installed on the surface of the upper cover 1, and an observation hole 23 is provided on the panel.

[0027] In the initial state, the panel is clamped and limited on the surface of the upper cover, and the observation hole is blocked by the upper cover below and cannot intersect or overlap with the hollow hole in the up and down directions; when the panel is slid, the panel can slide to a position where the observation hole intersects or overlaps with the hollow hole in the up and down directions, so that the fuse can be detected through the observation hole.

[0028] Specifically, in this embodiment, a blocking block 12 is further provided on the surface of the upper cover 1, a baffle 22 cooperating with the blocking block is provided at the bottom of the panel, and a bending plate 25 cooperating with one side of the upper cover is formed at one end of the panel, and the bending plate and the baffle cooperate to limit the panel to the surface of the upper cover; Figure 2 As shown, the blocking block 12 is located in a slot opened on the surface of the upper cover. Figure 3 As shown, the bending plate and the panel form an L-shaped structure, and the bending plate is installed in cooperation with the side of the upper cover. The installed panel and the upper cover are as shown in Figure 1 As shown, the bending plate cooperates with the side of the upper cover, the baffle 22 is inserted into the slot of the upper cover, and after being clamped and limited by the blocking block 12 in the slot, the baffle 22 bends and generates elasticity, so that the panel is horizontally limited on the surface of the upper cover;

[0029] like Figure 2As shown, a baffle plate 13 is formed at the edge of the hollow hole of the upper cover. In the initial state, the panel is clamped and limited on the surface of the upper cover, and the observation hole is located directly above the baffle plate; when the panel is pushed, the panel moves toward the bending plate, and the baffle plate 22 is blocked by the blocking block, so that the baffle plate 22 is further bent, increasing the bending amount, so that the observation hole is located directly above the hollow hole, and the operator can insert the fuse monitoring module or other required components into the observation hole to achieve a convenient and quick installation method.

[0030] Furthermore, it can be considered that reinforcing ribs 24 are provided at the position where the baffle plate contacts the panel, so as to increase the strength of the root of the baffle plate and prevent the baffle plate from breaking.

[0031] In addition, if Figure 2 , 3 As shown, a buckle 21 is further provided on the side of the panel, and a slot 11 is provided on the side of the upper cover. The panel and the upper cover are fastened together by the cooperation between the buckle and the slot.

[0032] In addition, it can also be considered that when the panel is in the initial state, the panel above the hollow hole is made of transparent material for observing the matching condition between the fuse and the socket on the base.

[0033] like Figure 1 As shown, it also includes a base 4, and the base 4 is movably connected to the upper cover 1.

[0034] The above embodiments describe the present invention in detail, but the above contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention shall still fall within the scope of the patent coverage of the present invention.

Claims

1. Fuse type isolating switch, Features: Including upper cover; A plurality of fuses are installed inside the upper cover, a hollow hole for observing the fuses is provided on the surface of the upper cover, and a plurality of panels are installed on the surface of the upper cover, and observation holes are provided on the panels; In the initial state, the panel is clamped and limited on the surface of the upper cover, and the observation hole is blocked by the upper cover below and cannot intersect or overlap with the hollow hole in the up and down directions; when the panel is slid, the panel can slide to a position where the observation hole intersects or overlaps with the hollow hole in the up and down directions, so that the fuse can be detected through the observation hole.

2. The fuse-type disconnect switch according to claim 1, Its characteristics are: A blocking block is also provided on the surface of the upper cover, a baffle plate cooperating with the blocking block is provided at the bottom of the panel, a bending plate cooperating with one side of the upper cover is formed at one end of the panel, and the bending plate and the baffle plate cooperate to limit the panel to the surface of the upper cover.

3. The fuse-type disconnect switch according to claim 2, Its characteristics are: The bending plate and the panel form an L-shaped structure, and the bending plate is installed in cooperation with the side edge of the upper cover.

4. The fuse-type disconnect switch according to claim 2, Its characteristics are: When the baffle is inserted into the upper cover and is clamped and limited by the blocking block, the baffle bends and generates elasticity.

5. The fuse-type disconnect switch according to claim 1, Its characteristics are: A buckle is also provided on the side of the panel, and a slot is provided on the side of the upper cover. The panel and the upper cover are assembled by the cooperation of the buckle and the slot.

6. The fuse-type disconnect switch according to claim 2, Its characteristics are: A reinforcing rib is arranged at the position where the baffle plate contacts the panel.

7. The fuse-type disconnect switch according to claim 1, Its characteristics are: When the panel is in the initial state, the panel above the hollow hole is made of transparent material, which is used to observe the matching condition between the fuse and the socket on the base.

8. The fuse-type disconnect switch according to claim 1, Its characteristics are: It also includes a base, which is movably connected to the upper cover.

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