Insulating baffle plate for static contact of high-voltage switch cabinet

Abstract

The utility model belongs to the field of high-voltage detection, and relates to a static contact insulating baffle plate of a high-voltage switch cabinet. The device has the characteristics of high insulation coefficient and reliable and convenient operation. The technical scheme comprises a baffle body and a closing assembly. The whole baffle plate body is a plate, the baffle plate body is provided with three through holes, and the positions of the three through holes are in one-to-one correspondence with the positions of three-phase static contacts of the corresponding high-voltage switch cabinet. A closing assembly is arranged on each through hole, the closing assemblies are made of insulating materials, and the closing assemblies are configured to close the through holes and open the through holes under the action of downward pressure.

Description

Technical Field

[0001] The utility model belongs to the field of high voltage electricity detection and relates to an insulating baffle of a static contact of a high voltage switch cabinet. Background Art

[0002] When performing insulation testing on the wiring inside the front cabinet of a high-voltage switchgear, engineers need to enter the cabinet to connect the test leads. The narrow interior space of some high-voltage switchgear makes entry and exit difficult, and there is also a risk of electric shock.

[0003] To facilitate testing and improve the safety factor, engineers use a handheld insulating rod to connect the measuring wire to the terminal to be tested. That is, the front end of the insulating rod is pressed against the static contact, and the front end of the insulating rod is connected to the measuring wire to achieve testing.

[0004] In current technology, static contact baffles are provided at the static contact positions of high-voltage switchgear, and the static contact baffles are all whole plates. That is to say, when engineers hold the insulating rod, the front end of the insulating rod cannot come into contact with the static contact. Utility Model Content

[0005] In order to overcome the defects in the above-mentioned related technologies, the utility model provides a high-voltage switch cabinet static contact insulation baffle, which has the characteristics of high insulation coefficient and reliable and convenient operation.

[0006] To address the aforementioned technical issues, the present invention provides an insulating baffle for a high-voltage switchgear static contact. The insulating baffle comprises a baffle body and a closing assembly. The baffle body is formed as a plate and is provided with three through-holes, the positions of which correspond one-to-one with the positions of the three-phase static contacts of the high-voltage switchgear. Each through-hole is provided with a closing assembly made of an insulating material. The closing assembly is configured to seal the through-hole and, under downward pressure, to open the through-hole.

[0007] Preferably, the closing assembly comprises a base, a closing plate, a raised block, and a return spring. The base is an annular plate member fixed to the side of the baffle body away from the static contact. The base inner ring has a diameter greater than the diameter of the through-hole, and the base inner ring and the through-hole share a common centerline. A plurality of sliding grooves are provided on the side of the base away from the static contact, extending from the inner ring to the outer ring. Multiple closing plates are movably disposed on the side of the base away from the static contact. Guide rails corresponding to the sliding grooves are provided on the side of the closing plate contacting the base, and the guide rails are correspondingly inserted into the sliding grooves. When the multiple closing plates move toward the centerline of the base inner ring, they close the through-hole. Each closing plate is fixed with a raised block, which includes at least one inclined surface. The inclined surface extends from the centerline of the through-hole to the outside, away from the static contact, and is aligned with the position of the closing plate, so that the detection device is pressed against the inclined surface. The return spring is arranged between the base and the closing plate, and the return spring is configured to push the corresponding closing plate to move toward the center of the through hole.

[0008] Preferably, twelve sliding grooves are provided on the base, wherein every two sliding grooves among the twelve sliding grooves are parallel to each other, and the sliding grooves are dovetail grooves.

[0009] Preferably, a groove is further provided on the base between the two parallel sliding grooves. A slider is provided at a corresponding position of the closing plate, and a return spring is provided in the groove, with one end of the return spring contacting the side of the groove and the other end of the return spring contacting the slider.

[0010] Preferably, the closing plate is a triangular plate, and each of the closing plates is provided with at least two guide rails, and the two guide rails are plugged into the two sliding grooves in a one-to-one correspondence.

[0011] Preferably, a stopper is provided at the end of the sliding groove close to the center line of the through hole, and when the guide rail contacts the stopper, the corner of the closing plate is located at the center line of the through hole.

[0012] The beneficial effects of the present invention are:

[0013] This new device utilizes a closing assembly, ensuring that the static contact baffle seals the static contact during normal operation of the high-voltage switchgear. When insulation testing is required, engineers simply press down on the insulating rod to force the rod's tip through the through-hole and into contact with the static contact. Furthermore, this device utilizes a mechanical structure, unaffected by high-voltage electromagnetic fields, offering advantages such as ease of operation, high safety, and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

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

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 This is a structural diagram of the base of the utility model;

[0018] Figure 4 This is a structural diagram of the closing assembly of the present utility model;

[0019] Figure 5 This is a side structural diagram of the closing plate of the utility model close to the base;

[0020] Figure 6 This is a side structural diagram of the closing plate of the present invention. DETAILED DESCRIPTION

[0021] To make the above-mentioned purposes, features, and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0024] like Figures 1 to 6 As shown, the present invention provides an insulating baffle for a high-voltage switchgear static contact. The insulating baffle for a high-voltage switchgear static contact comprises a baffle body 1 and a closing assembly 2. The baffle body 1 is a plate member having three through-holes, the positions of which correspond one-to-one with the positions of the three-phase static contacts of the high-voltage switchgear. Each through-hole is provided with a closing assembly 2 made of an insulating material. The closing assembly 2 is configured to seal the through-hole and, under the action of downward pressure, to open the through-hole.

[0025] Preferably, the closing assembly 2 includes: a base 21, a closing plate 22, a raised block 23, and a return spring 24. The base 21 is an annular plate member fixed to the side of the baffle body 1 away from the static contact. The inner diameter of the base 21 is larger than the diameter of the through hole. The inner ring of the base 21 and the through hole share a common centerline. A plurality of sliding grooves 25 are provided on the side of the base 21 away from the static contact. The sliding grooves 25 extend from the inner ring of the base 21 to the outer ring of the base 21. Multiple closing plates 22 are movably disposed on the side of the base 21 away from the static contact. Guide rails corresponding to the corresponding sliding grooves 25 are provided on the side of the closing plates 22 in contact with the base 21. The guide rails are correspondingly inserted into the sliding grooves 25. When the multiple closing plates 22 move toward the centerline of the inner ring of the base 21, they close the through hole. Each closing plate 22 is secured with a raised block 23, each block 23 including at least an inclined surface 26. This inclined surface 26 extends outward from the centerline of the through-hole, away from the stationary contact. The inclined surface 26 is aligned with the position of the closing plate 22, allowing the detection device to press against the inclined surface 26. A return spring 24 is disposed between the base 21 and the closing plate 22, configured to push the corresponding closing plate 22 toward the center of the through-hole. The angle between the inclined surface 26 and the vertical plane can range from 30° to 60°, for example, 30°, 45°, or 60°.

[0026] Preferably, twelve sliding grooves 25 are provided on the base 21 , wherein every two sliding grooves 25 among the twelve sliding grooves 25 are parallel to each other, and the sliding grooves 25 are dovetail grooves.

[0027] Preferably, a groove is further provided on the base 21 between the two parallel sliding grooves 25. A slider is provided at a corresponding position of the closing plate 22, and a return spring 24 is provided in the groove, with one end of the return spring 24 abutting against the side of the groove and the other end of the return spring 24 abutting against the slider.

[0028] Preferably, the closing plate 22 is a triangular plate, and each closing plate 22 is provided with at least two guide rails, and the two guide rails are plugged into the two sliding grooves 25 in a one-to-one correspondence. There are six closing plates 22, which are isosceles triangle plates or regular triangle plates.

[0029] Preferably, a stopper is provided at the end of the sliding groove 25 close to the center line of the through hole, and when the guide rail contacts the stopper, the corner of the closing plate 22 is located at the center line of the through hole.

[0030] The specific operation process of this utility model is as follows:

[0031] The utility model requires the use of an insulating rod, which is a rod with a measuring terminal fixed at one end. One end of the measuring wire is fixedly connected to the measuring terminal and the measuring wire is fixedly arranged along the insulating rod, and the other end of the measuring wire is provided with a terminal.

[0032] The engineer holds the insulating rod and presses the measuring tip against the center of the closure assembly 2. This pushes the inclined surface 26 of the protrusion 23, receiving downward pressure from the measuring tip, and pushes the protrusion 23 away from the centerline of the through-hole. This causes the closure plate 22 to move away from the centerline of the through-hole, opening the closure assembly 2 and allowing the measuring tip to be further inserted into the inner ring of the base 21 and the through-hole of the baffle body 1, thereby achieving electrical contact between the measuring tip and the static contact.

[0033] When the measuring end is withdrawn, it can be understood that the surface of the measuring end is smooth, and the measuring end and the closing plate 22 will not get stuck. When the measuring end is withdrawn from the closing assembly 2, multiple closing plates 22 return to their positions under the action of the reset spring 24, thereby achieving the purpose of the closing plate 22 closing the through hole.

[0034] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0035] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited to them. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present utility model. Therefore, the scope of protection of the present utility model should be based on the scope of protection of the claims.

Claims

1. A high-voltage switch cabinet static contact insulation baffle, characterized in that: include: The baffle body is a plate member as a whole, and is provided with three through holes, and the positions of the three through holes correspond one-to-one to the positions of the three-phase static contacts of the corresponding high-voltage switchgear; A closing component is provided on each through hole. The closing component is made of insulating material. The closing component is configured to close the through hole and open the through hole under the action of downward pressure.

2. The high-voltage switch cabinet static contact insulation baffle according to claim 1, characterized in that: The closure assembly comprises: A base, wherein the base is an annular plate member, fixed to a side of the baffle body away from the static contact, and the inner ring diameter of the base is larger than the diameter of the through hole, the inner ring of the base and the through hole share a common centerline, and a plurality of sliding grooves are provided on a side of the base away from the static contact, the sliding grooves extending from the inner ring of the base to the outer ring of the base; A closing plate, wherein a plurality of the closing plates are movably arranged on a side of the base away from the static contact, a guide rail adapted to the corresponding sliding groove is provided on the side of the closing plate in contact with the base, and the guide rail is correspondingly inserted into the sliding groove, and the plurality of closing plates close the through hole when they move toward the center line of the inner ring of the base; A raised block, one of which is fixed to each closing plate, the raised block including at least an inclined surface, the inclined surface extending from the centerline of the through hole to the outside, away from the side of the static contact, and the inclined surface adapted to the position of the closing plate so that the detection device is pressed onto the inclined surface; A return spring is provided between the base and the closing plate, and the return spring is configured to push the corresponding closing plate to move toward the center of the through hole.

3. The high-voltage switch cabinet static contact insulation baffle according to claim 2, characterized in that: The base is provided with twelve sliding grooves, wherein every two of the twelve sliding grooves are parallel to each other; The sliding groove is a dovetail groove.

4. The high-voltage switch cabinet static contact insulation baffle according to claim 3, characterized in that: A groove is also provided on the base between the two parallel sliding grooves; A slider is provided at a corresponding position of the closing plate, a return spring is provided in the groove, one end of the return spring abuts against the side surface of the groove, and the other end of the return spring abuts against the slider.

5. The high-voltage switch cabinet static contact insulation baffle according to claim 4, characterized in that: The closing plate is a triangular plate, and each of the closing plates is provided with at least two guide rails; The two guide rails are plugged into the two sliding grooves in a one-to-one correspondence.

6. The high-voltage switch cabinet static contact insulation baffle according to claim 5, characterized in that: The end of the sliding groove close to the center line of the through hole is provided with a stopper. When the guide rail contacts the stopper, the corner of the closing plate is located at the center line of the through hole.

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