Insulation signboard applied to air switch

Abstract

The utility model provides an insulating signboard applied to an air switch, which comprises a signboard and a suspension structure thereof, a cylindrical bulge is arranged on the back of the signboard, a cap is arranged at the end part of the cylindrical bulge, a torsion spring is arranged at the bottom of the suspension structure, two ends of the torsion spring are connected with one end of a hand guard, and the other end of the hand guard is connected with a bolt. According to the utility model, the bolt is fixed in the small hole of the air switch through the elastic force of the torsion spring, so that the phenomenon that the nameplate on the air switch falls off is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electric power warning signboards, in particular to an insulating signboard applied to an air switch. Background Art

[0002] In the daily operation of power plants, there are many operations involving air switches, including inspection and maintenance, power outage operations, accident handling, work permits, etc. The air switch controls the input and output of various power supplies and plays an extremely important role. Once the air switch is accidentally touched or misoperated, it will cause varying degrees of harm and loss to the operating equipment. Therefore, hanging safety signs on air switches that are prohibited from operation is an important measure to ensure the normal operation of equipment and protect personnel from harm.

[0003] At present, two types of signboards are mostly used in power plants. The first type is a signboard made of foam plastic with a short rope. The structure of the air switch itself is not suitable for hanging signs, and the rope of the signboard is easy to break. Even if it is barely hung on the air switch, the signboard may fall off due to the switch cabinet door, which may cause people to mistakenly close the switch. This makes the use of existing signboards have certain limitations and cannot play a comprehensive warning role in the warning area; the second type is a small plastic signboard with a metal pin. On the one hand, because the pin is made of conductive material, there is a risk of electric shock for power plant workers when hanging signs in the switch cabinet; on the other hand, in order to ensure the convenience and stability of the signboard hanging, the pin rod of this signboard is generally small and inelastic, and it is difficult to apply force to deform it. It requires stable force to keep the metal pin of the signboard in a contracted state and hang it on the air switch. After repeated use, the connection between the metal and the plastic signboard is prone to fatigue and breakage.

[0004] Therefore, there is an urgent need for an insulating sign applied to an air switch to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide an insulating signboard applied to an air switch to solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solution: an insulating signboard applied to an air switch, comprising a signboard and a hanging structure thereof, wherein a cylindrical protrusion is provided on the back of the signboard, a cap is provided on the end of the cylindrical protrusion, a torsion spring is provided at the bottom of the hanging structure, both ends of the torsion spring are connected to one end of a hand guard, and the other end of the hand guard is connected to a latch.

[0007] Preferably, the bolt body is an L-shaped structure, and a connecting rod is provided at one end of the bolt connected to the hand guard, and the bolt and the connecting rod are made of PVC material.

[0008] Preferably, the hand guard is made of high-hardness insulating material.

[0009] Preferably, the torsion spring is a spring structure, the torsion spring is made of a high-elastic steel material, and the two ends of the torsion spring extend to be connected to the bottom end of the hand guard.

[0010] Preferably, the nameplate and the cylindrical protrusion are an integrated structure, and the cylindrical protrusion passes through the hole in the torsion spring and is fixed by a cap.

[0011] The utility model has the following beneficial effects:

[0012] 1. The plug in the utility model is fixed in the small hole of the air switch by the elastic force of the torsion spring, which reduces the phenomenon of the sign on the air switch falling off;

[0013] 2. The utility model isolates the physical contact between the worker and the metal torsion spring when the worker squeezes the pin and the torsion spring through the hand guard, thereby avoiding the risk of electric shock caused by the worker accidentally touching the live conductor during the operation, and reducing the installation difficulty of the signboard hanging and removing process;

[0014] 3. The utility model does not involve plastic deformation of metal during operation, thereby increasing the service life of a single sign. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the signboard of the utility model;

[0016] Figure 2 A schematic diagram of the structure of the hanging part of the signboard of the utility model;

[0017] Figure 3 A schematic structural diagram of a signboard body of the utility model signboard;

[0018] Figure 4 A front view structural schematic diagram of the utility model signboard;

[0019] Figure 5 The utility model is a schematic diagram of a signboard used for an air switch. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] See also Figures 1 to 5An insulating signboard used for an air switch includes a signboard 1 and a hanging structure 2. The back of the signboard 1 is provided with a cylindrical protrusion 1.1, the end of the cylindrical protrusion 1.1 is provided with a cap 1.2, and the bottom of the hanging structure 2 is provided with a torsion spring 2.1. Both ends of the torsion spring 2.1 are connected to one end of a hand guard 2.2, and the other end of the hand guard 2.2 is connected to a pin 2.3.

[0022] Preferably, the main body of the latch 2.3 is an L-shaped structure, and a connecting rod 2.3.1 is provided at one end of the latch 2.3 connected to the hand guard 2.2, and the latch 2.3 and the connecting rod 2.3.1 are made of PVC material.

[0023] Preferably, the hand guard 2.2 is made of high-hardness insulating material, and is used to connect the lower section of the plug and the upper end of the torsion spring. The rubber hand guard directly isolates the physical contact between the finger and the torsion spring, thereby avoiding the risk of electric shock caused by the worker touching the conductor during the operation, and the technician can be safer during the operation.

[0024] Preferably, the torsion spring 2.1 is a spring structure, and the torsion spring 2.1 is made of a highly elastic steel material. Both ends of the torsion spring 2.1 extend to be connected to the bottom end of the hand guard 2.2.

[0025] Preferably, the sign 1 and the cylindrical protrusion 1.1 are an integrated structure, and the cylindrical protrusion 1.1 passes through the hole of the torsion spring 2.1 and is fixed by the cap 1.2. After the central ring part of the torsion spring is placed on the protrusion, it can be fixed by covering it with the cap.

[0026] The working principle of this embodiment is as follows:

[0027] When using the utility model, the operator squeezes the hand guard 2.2 inward with fingers to make the upper ends of the latch 2.3 approach each other. After leaving enough space, the latch 2.3 can be aligned and inserted into the small hole of the air switch. After releasing the hand, the latch 2.3 fixes itself on the small hole of the air switch under the restoring force of the torsion spring 2.1.

[0028] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An insulating signboard for use in an air switch, comprising a signboard (1) and a hanging structure (2), characterized in that: A cylindrical protrusion (1.1) is provided on the back of the signboard (1), a cap (1.2) is provided on the end of the cylindrical protrusion (1.1), a torsion spring (2.1) is provided at the bottom of the suspension structure (2), both ends of the torsion spring (2.1) are connected to one end of a hand guard (2.2), and the other end of the hand guard (2.2) is connected to a latch (2.3).

2. The insulating signboard used for an air switch according to claim 1, characterized in that: The main body of the latch (2.3) is an L-shaped structure, and one end of the latch (2.3) connected to the hand guard (2.2) is provided with a connecting rod ( 2.3.1), the latch (2.3) and the connecting rod (2.3.1) are made of PVC material.

3. The insulating signboard used for an air switch according to claim 1, characterized in that: The hand guard (2.2) is made of high-hardness insulating material.

4. The insulating signboard used for an air switch according to claim 1, characterized in that: The torsion spring (2.1) is a spring structure, and both ends of the torsion spring (2.1) extend to be connected to the bottom end of the hand guard (2.2).

5. The insulating signboard used for an air switch according to claim 1, characterized in that: The signboard (1) and the cylindrical protrusion (1.1) are an integrated structure; the cylindrical protrusion (1.1) passes through the hole in the torsion spring (2.1) and is fixed by a cover cap (1.2).

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