CN216120050U

CN216120050U - Grounding switch of medium-voltage switchgear assembly

Info

Publication number: CN216120050U
Application number: CN202121925498.4U
Authority: CN
Inventors: 王�华
Original assignee: Individual
Current assignee: Lv Weidong
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-22
Anticipated expiration: 2031-08-17

Abstract

The utility model discloses a medium-voltage complete switch equipment grounding switch which comprises a fixed frame, a current conducting plate and a base, wherein a return spring is fixedly installed at the top of the base, the current conducting plate is fixedly installed at the top of the return spring, a movable contact spring is fixedly installed at the top of the current conducting plate, an insulator is fixedly installed at the top of the base at the rear end of the return spring, a connecting plate is fixedly installed at the top of the insulator, a static contact plate is fixedly installed at the bottom of the connecting plate, a guide plate is fixedly installed at the bottom of the static contact plate, the fixed frame is fixedly installed at the top of the base outside the return spring, an electric push rod is fixedly installed between the inside of the fixed frame and the current conducting plate, and plug pins are slidably installed in the bases at two ends of the fixed frame. The utility model has the advantages that the area required by the device during installation can be reduced in the using process of the device by arranging a series of structures, the loss between the structures is small, the use is convenient, and the like, and the using process is optimized.

Description

Grounding switch of medium-voltage switchgear assembly

Technical Field

The utility model relates to the technical field of switches, in particular to a grounding switch of medium-voltage switchgear assembly.

Background

The traditional medium-voltage switchgear is a complete set of electric appliances taking a switch as a main body, mainly comprises a circuit breaker, a mutual inductor, a secondary control protection circuit, an instrument, a disconnecting switch and the like, only needs to be normally switched on and off in function, and in order to ensure the safety of the medium-voltage switchgear during use, an earthing switch needs to be installed inside the medium-voltage switchgear during use.

Through retrieval, patent publication No. CN209822542U discloses a earthing switch, including base, explosion chamber, static contact and moving contact, the explosion chamber upper end is for being provided with the insulating stand of slope with the static contact both ends, it is provided with insulating sliding plate to slide between the insulating stand, is provided with the horizontal pole on the insulating sliding plate, articulates between horizontal pole and the moving contact to have the connecting rod.

The existing grounding switch has the following defects:

1. the existing grounding switch is mostly rotated to realize the disconnection and the connection of the grounding switch, and once the positions of a movable contact piece and a static contact piece of the grounding switch are deviated, the grounding switch cannot be normally closed, so that the safety of the device is reduced;

2. the existing grounding switch is installed in medium-voltage switchgear assembly, the occupied area is large, the internal space of the medium-voltage switchgear assembly is reduced, the stability of the device during use is general, and therefore the grounding switch of the medium-voltage switchgear assembly is provided to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a grounding switch of medium-voltage switchgear assembly to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a medium voltage switchgear earthing switch, includes mount, current conducting plate and base, the top fixed mounting of base has reset spring, reset spring's top fixed mounting has the current conducting plate, the top fixed mounting of current conducting plate has the movable contact spring, the base top fixed mounting of reset spring rear end has the insulator, the top fixed mounting of insulator has the connecting plate, the bottom fixed mounting of connecting plate has the static contact, and the bottom fixed mounting of static contact has the baffle, reset spring outside base top fixed mounting has the mount, fixed mounting has electric putter between the inside of mount and the current conducting plate, the inside slidable mounting of base at mount both ends has the plug.

Preferably, the connecting rings are fixedly mounted on two sides of the bottom of the conductive plate, and the connecting rings are internally provided with wiring holes.

Preferably, the bases at the two ends of the fixing frame are internally provided with limiting holes, and the plug pins are embedded with the limiting holes.

Preferably, the top of the base at the front end of the return spring is fixedly provided with a mark, and the surface of the mark is coated with an anti-oxidation layer.

Preferably, a limiting table is fixedly installed between the bottom of the return spring and the base, and a telescopic rod is movably installed inside the return spring between the limiting table and the current conducting plate.

Preferably, the bottom of the fixing frame is fixedly provided with a fixing table, and a fixing bolt is arranged between the fixing table and the base in a threaded manner.

Compared with the prior art, the utility model has the beneficial effects that:

1. the movable contact piece is fixedly arranged at the top of the current-conducting plate, the current-conducting plate is pushed upwards to move by the elasticity of the return spring when the movable contact piece is used, the movable contact piece is connected with the static contact piece in an embedded mode, the current-conducting plate can be driven to move downwards by the electric power push rod to achieve disconnection, the movable contact piece in the moving mode can be guided before the static contact piece is connected with the movable contact piece by the guide plate, and the movable contact piece can be better embedded with the static contact piece when the movable contact piece is used.

2. The device utilizes the plug to connect the base and the external structure, and then realizes the limitation of the position of the device, compared with the traditional rotary grounding switch, the device reduces the contact area between the device and the external structure, and saves the space.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a partial structural view of the base and the fixing frame of the present invention;

fig. 4 is a rear view of the present invention.

In the figure: 1. a connecting plate; 101. a static contact piece; 102. a guide plate; 2. a fixed mount; 201. a fixed table; 202. a fixing bolt; 3. an electric push rod; 4. a conductive plate; 401. a connecting ring; 402. a movable contact spring; 5. a base; 501. identifying; 502. plugging; 503. a limiting hole; 6. an insulator; 7. a return spring; 701. and a limiting table.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an embodiment of the present invention is shown: a medium voltage switchgear grounding switch comprises a fixed frame 2, a conductive plate 4 and a base 5, wherein the top of the base 5 is fixedly provided with a return spring 7, the top of the return spring 7 is fixedly provided with the conductive plate 4, a movable contact piece 402 is fixedly arranged on the top of the conductive plate 4, when in use, the elasticity of the return spring 7 can be used for pushing the conductive plate 4 to move upwards when an electric push rod 3 does not work, the movable contact piece 402 is connected with a static contact piece 101 in an embedded manner, the safety and the practicability of the device are improved, the movable contact piece 402 in movement can be guided before the static contact piece 101 is connected with the movable contact piece 402 by a guide plate 102, the movable contact piece 402 can be better embedded with the static contact piece 101 when in use, an insulator 6 is fixedly arranged on the top of the base 5 at the rear end of the return spring 7, and the insulator 6 can be used for isolating power when in use, the top of the insulator 6 is fixedly provided with a connecting plate 1, the position of the static contact 101 can be limited by using the connecting plate 1 when in use, the static contact 101 is fixedly arranged at the bottom of the connecting plate 1, the bottom of the static contact 101 is fixedly provided with a guide plate 102, the top of a base 5 outside the reset spring 7 is fixedly provided with a fixed frame 2, an electric push rod 3 is fixedly arranged between the inside of the fixed frame 2 and a conductive plate 4, when in use, the electric push rod 3 is electrified to drive the conductive plate 4 to move downwards, the conductive plate 4 moves downwards to drive the movable contact 402 to be separated from the static contact 101, after separation, a disconnecting switch is realized, the occupied space is reduced, when in use, the fixed frame 2 can limit the position of the electric push rod 3 at the top of the base 5, the stability between device structures is improved, and the plugs 502 are slidably arranged inside the bases 5 at the two ends of the fixed frame 2, the plug 502 can be used for connecting the base 5 with an external structure, the position of the device is limited after connection, the phenomenon of displacement of the base 5 in use is avoided, and the stability of the device is improved.

Further, the both sides fixed mounting of current conducting plate 4 bottom has go-between 401, and the inside of go-between 401 is provided with the wiring hole, utilizes go-between 401 can make things convenient for the user of service more when using to carry out electric connection between with device and the external conductor, realizes ground connection after connecting.

Furthermore, the base 5 at the two ends of the fixing frame 2 is internally provided with a limiting hole 503, the plug 502 is embedded with the limiting hole 503, and the position of the plug 502 in the base 5 can be limited by the limiting hole 503 when in use, so that the device is more convenient for a user to connect.

Further, the base 5 top fixed mounting of reset spring 7 front end has sign 501, and the surface coating of sign 501 has an anti oxidation coating, utilizes sign 501 to show the model, the performance and the principle of device with the form of characters to the staff to make things convenient for the user of service to use the device more.

Further, fixed mounting has spacing platform 701 between reset spring 7's bottom and the base 5, and the inside movable mounting of reset spring 7 between spacing platform 701 and the current conducting plate 4 has the telescopic link, utilizes spacing platform 701 can prescribe a limit to reset spring 7 in the position at base 5 top when using, improves the stability when reset spring 7 uses.

Further, the bottom of the fixing frame 2 is fixedly provided with a fixing table 201, a fixing bolt 202 is installed between the fixing table 201 and the base 5 through threads, the contact area between the bottom surface of the fixing frame 2 and the base 5 can be enlarged by using the fixing table 201 when the fixing frame is used, the fixing bolt 202 is used for fixedly connecting the fixing table 201 and the base 5, and the stability of the fixing frame 2 is improved after the fixing frame is connected.

The working principle is as follows: the base 5 and the external structure are installed by using the plug 502, after installation, the electric push rod 3 can push the conductive plate 4 to move upwards by using the elasticity of the return spring 7 when not working, so that the movable contact piece 402 is embedded and connected with the static contact piece 101, the electric push rod 3 drives the conductive plate 4 to move downwards after being electrified, the conductive plate 4 drives the movable contact piece 402 to be separated from the static contact piece 101 when moving downwards, and a disconnecting switch is realized after separation.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a medium voltage switchgear earthing switch, includes mount (2), current conducting plate (4) and base (5), its characterized in that: the top of the base (5) is fixedly provided with a return spring (7), the top of the return spring (7) is fixedly provided with a conductive plate (4), the top of the conducting plate (4) is fixedly provided with a movable contact piece (402), the top of the base (5) at the rear end of the reset spring (7) is fixedly provided with an insulator (6), the top of the insulator (6) is fixedly provided with a connecting plate (1), the bottom of the connecting plate (1) is fixedly provided with a static contact (101), a guide plate (102) is fixedly arranged at the bottom of the static contact piece (101), a fixed frame (2) is fixedly arranged at the top of the base (5) at the outer side of the return spring (7), an electric push rod (3) is fixedly arranged between the inner part of the fixed frame (2) and the conductive plate (4), the plug bolts (502) are slidably mounted in the bases (5) at the two ends of the fixing frame (2).

2. The medium voltage switchgear grounding switch according to claim 1, characterized in that: and connecting rings (401) are fixedly mounted on two sides of the bottom of the conductive plate (4), and wiring holes are formed in the connecting rings (401).

3. The medium voltage switchgear grounding switch according to claim 1, characterized in that: the base (5) at the two ends of the fixing frame (2) is internally provided with a limiting hole (503), and the plug (502) is embedded with the limiting hole (503).

4. The medium voltage switchgear grounding switch according to claim 1, characterized in that: the top of the base (5) at the front end of the reset spring (7) is fixedly provided with a mark (501), and the surface of the mark (501) is coated with an anti-oxidation layer.

5. The medium voltage switchgear grounding switch according to claim 1, characterized in that: a limiting table (701) is fixedly installed between the bottom of the reset spring (7) and the base (5), and a telescopic rod is movably installed inside the reset spring (7) between the limiting table (701) and the conductive plate (4).

6. The medium voltage switchgear grounding switch according to claim 1, characterized in that: the bottom fixed mounting of mount (2) has fixed station (201), and threaded mounting has gim peg (202) between fixed station (201) and base (5).