CN219227056U

CN219227056U - Three-station switch assembly structure for inflatable cabinet

Info

Publication number: CN219227056U
Application number: CN202223152338.8U
Authority: CN
Inventors: 蔡长胜; 杨金德; 张佳伟
Original assignee: Shanghai Dahua Electric Equipment Co ltd
Current assignee: Shanghai Dahua Electric Equipment Co ltd
Priority date: 2022-11-26
Filing date: 2022-11-26
Publication date: 2023-06-20
Anticipated expiration: 2032-11-26

Abstract

The utility model discloses a three-station switch assembly structure for an inflatable cabinet, which relates to the technical field of power distribution equipment and comprises a grounding reinforcing plate and a fastener, wherein three grounding contact seats which are equidistantly distributed are arranged on the front surface of the grounding reinforcing plate through the fastener, one ends of the three grounding contact seats are connected with supporting insulating cylinders in a threaded manner, and one ends of the three supporting insulating cylinders are connected with contact tube assemblies in a threaded manner. This three-position switch assembly structure for cabinet aerifys, firstly install the contact tube subassembly location to circuit breaker (seal the utmost point post admittedly) on during the use, with contact tube and support insulating tube threaded connection again, with support insulating tube and ground contact seat threaded connection, again with ground contact seat grafting in the spread groove, then it is fixed with the ground contact seat from the ground reinforcing plate back to use the fastener again, advance to have reached the installation between contact tube, support insulating tube, ground contact seat and the ground reinforcing plate, and then solved and used staple bolt installation to the problem that the staple bolt requires the precision high and use the staple bolt installation inconvenient problem of assembly.

Description

Three-station switch assembly structure for inflatable cabinet

Technical Field

The utility model relates to the technical field of power distribution equipment, in particular to a three-station switch assembly structure for an inflatable cabinet.

Background

Along with the development of social economy, the complexity of engineering construction is increased, the requirements of the market on miniaturization, maintenance-free and intellectualization of the switch equipment are higher and higher, the conventional air insulation switch cabinet cannot meet the use requirements of severe environments such as high altitude, humidity, pollution and the like, the air insulation switch cabinet adopts air as an arc extinguishing and insulating medium, primary elements such as a circuit breaker, an isolating switch, a bus and the like are all sealed in a stainless steel gas box shell, the influence of the external environment is avoided, the maintenance-free switch cabinet is really manufactured, and the air insulation switch cabinet is suitable for being used in various severe places.

The three-station isolating switch is used as an important component in the gas tank of the inflatable switch cabinet, and the quality of the assembly performance of the three-station isolating switch directly influences the operation performance and the service life of the product.

The direct-acting three-position switch is a commonly used isolating switch mode in an air charging cabinet, and is particularly widely applied to high-current switch cabinet products.

In the process of assembling the product gas tank, the circuit breaker (solid-sealed polar pole) generally needs to be fixed firstly, then the isolating switch is fixed on the circuit breaker (solid-sealed polar pole) through the conductive piece, and only part of three-station switch products are additionally provided with a supporting insulating cylinder between the contact tube and the grounding contact seat under the influence of the fixing mode of the conductive piece, and the insulating cylinder can play a role of fixing, supporting and guiding and has a positive role in keeping the safety distance between the contact tube and the grounding contact seat.

At present, most three-station switches with additional support insulating cylinders are installed by fixing a grounding contact seat on a grounding reinforcing plate, assembling a support insulating cylinder assembly, fixing a contact tube, and finally fastening the assembled whole to a circuit breaker in a hoop clamping mode through a conductive support piece.

The conductive support piece and the contact tube are two parts, the conductive support piece is firstly fixed on the circuit breaker during installation, then the contact tube is clamped and fixed in a hoop mode, so that the machining precision requirements of the outer lap joint surface of the contact tube and the inner side surface of the hoop hole of the conductive support piece are very high, the contact unreliable condition is easy to occur, the heating concentration point occurs, the performance of the switch equipment is finally affected, in addition, the section diameter of the contact tube is increased along with the increase of the current of a series of products, and the conductive support piece cannot meet the current-carrying requirement of the equipment.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a three-station switch assembly structure for an inflatable cabinet, which solves the problems of high requirement on three-station installation precision and inconvenient assembly in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides an aerify cabinet with three station switch assembly structures, includes ground connection reinforcing plate and fastener, the front of ground connection reinforcing plate is installed three through the fastener and is the ground connection contact seat that the equidistance distributes, and is three the equal threaded connection of one end of ground connection contact seat has a support insulating cylinder, and is three the equal threaded connection of one end of support insulating cylinder has a contact tube subassembly

The contact tube assembly comprises a contact tube which is connected with one end of the supporting insulating cylinder in a threaded mode, and mounting holes are formed in opposite sides of the inner wall of the contact tube.

Optionally, the external screw thread has been seted up to the bottom of contact tube outer wall, the internal screw thread with the external screw thread looks adaptation that the bottom of contact tube outer wall was seted up has been seted up to the one end of supporting insulating cylinder inner wall, contact tube and electrically conductive connecting piece pass through mode fixed connection and then have solved and have used the staple bolt to connect the problem that requires the precision high to the staple bolt.

Optionally, the internal thread has been seted up to the bottom of support insulating cylinder inner wall, the external screw thread of the internal thread looks adaptation of seting up with the bottom of a insulating cylinder inner wall has been seted up to the one end of ground contact seat outer wall.

Optionally, three connecting grooves which are equidistantly distributed are formed in the front face of the grounding reinforcing plate, positioning limitation is carried out on the installation positions of the grounding seats through the three connecting grooves, and then the installation distance of the three grounding contact seats can be guaranteed to be consistent in the installation process, and the specification of the connecting grooves is the same as the outer diameter of the bottoms of the grounding contact seats.

Optionally, four connection holes distributed in a ring array are formed in the inner bottom wall of each of the three connection grooves, and the connection holes are matched with the fasteners.

Optionally, the fastener passes mounting hole position on the contact tube and connects fixed contact tube subassembly and circuit breaker, through the uniformity that the circuit breaker can be guaranteed to the installation connection circuit breaker in the mounting hole position, and then more convenient at the in-process of installation, and also more convenient at the later stage in-process of using.

The three-station switch assembly structure for the inflatable cabinet has the following beneficial effects:

this three-position switch assembly structure for cabinet aerifys, through the setting of supporting insulating cylinder, ground connection reinforcing plate and contact subassembly isotructure, firstly install contact tube subassembly location on the circuit breaker during the use, the fastener passes through mounting hole connection contact tube subassembly and circuit breaker on the contact tube, again with contact tube and supporting insulating cylinder threaded connection, will support insulating cylinder and ground contact seat threaded connection again, again with ground contact seat grafting in the spread groove, then reuse the fastener to follow ground connection reinforcing plate back with ground contact seat fixed, the installation between having reached contact tube, supporting insulating cylinder, ground contact seat and the ground connection reinforcing plate, and then the use staple bolt installation to the problem that the staple bolt requires the precision high and use the staple bolt installation inconvenient problem of assembly.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

fig. 3 is a rear view of the present utility model.

In the figure: 6. supporting an insulating cylinder; 7. a ground reinforcing plate; 8. a contact tube assembly; 801. a contact tube; 802. a mounting hole; 9. a grounding contact base; 10. a fastener; 111. and a connecting groove.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1, 2 and 3, the three-position switch assembly structure for an inflatable cabinet provided by the utility model comprises a grounding reinforcing plate 7 and a fastening piece 10, wherein three grounding contact seats 9 distributed at equal intervals are arranged on the front surface of the grounding reinforcing plate 7 through the fastening piece 10, one ends of the three grounding contact seats 9 are respectively connected with a supporting insulating cylinder 6 in a threaded manner, and one ends of the three supporting insulating cylinders 6 are respectively connected with a contact tube assembly 8 in a threaded manner;

the contact tube assembly 8 comprises a contact tube 801 which is connected with one end of the supporting insulating cylinder 6 in a threaded manner, and mounting holes 802 are formed in the opposite sides of the inner wall of the contact tube 801.

Referring to fig. 1, 2 and 3, an external thread is provided at the bottom of the outer wall of the contact tube 801, an internal thread adapted to the external thread provided at the bottom of the outer wall of the contact tube 801 is provided at one end of the inner wall of the support insulating tube 6, an internal thread is provided at the bottom of the inner wall of the support insulating tube 6, and an external thread adapted to the internal thread provided at the bottom of the inner wall of the support insulating tube 6 is provided at one end of the outer wall of the ground contact seat 9;

three connecting grooves 111 which are equidistantly distributed are formed in the front face of the grounding reinforcing plate 7, the installation positions of the grounding seats 9 are limited through the three connecting grooves 111, and therefore the installation distances of the three grounding seats 9 can be guaranteed to be consistent in the installation process, and the specifications of the connecting grooves 111 are identical to the outer diameter of the bottom of the grounding reinforcing plate 7. The circuit breaker matched with the circuit breaker is installed and connected in the installation hole 802, the consistency of the installation position of each contact tube assembly can be guaranteed through the circuit breaker installed and connected in the installation hole 802, and then the installation process is more convenient, and the use process at the later stage is also more convenient. Four connecting holes distributed in an annular array are formed in the inner bottom wall of each connecting groove 111, and the connecting holes are matched with the fasteners 10.

To sum up, when the three-station switch assembly structure for the inflatable cabinet is used, a worker firstly installs and fixes the contact tube assembly 8 on the circuit breaker, the fastener passes through the installation hole 802 to connect and fix the circuit breaker, then the contact tube 801 is in threaded connection with the supporting insulating cylinder 6, then the supporting insulating cylinder 6 is in threaded connection with the grounding contact seat, then the grounding contact seat is inserted into the connection groove 111, and then the grounding contact seat is fixed from the back surface of the grounding reinforcing plate 7 by using the fastener, namely, the installation is completed.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art who is familiar with the technical solution and the inventive concept disclosed in the present utility model should cover the scope of the present utility model, and the terms "connected", "mounted", "fixed", "arranged" and the like are understood in a broad sense, for example, the "connected" may be a fixed connection or indirectly through an intermediate component without affecting the relationship of components and technical effects, or may be an integral connection or a partial connection, as in the case of this example, for those skilled in the art, and the specific meaning of the term in the present utility model or the utility model may be understood according to the specific circumstances.

Claims

1. The utility model provides an aerify cabinet with three station switch assembly structures, includes ground connection reinforcing plate (7) and fastener (10), its characterized in that: three grounding contact seats (9) which are equidistantly distributed are arranged on the front surface of the grounding reinforcing plate (7) through fasteners (10), one ends of the three grounding contact seats (9) are in threaded connection with supporting insulating cylinders (6), and one ends of the three supporting insulating cylinders (6) are in threaded connection with contact tube assemblies (8);

the contact tube assembly (8) comprises a contact tube (801) which is connected to one end of the supporting insulating cylinder (6) in a threaded mode, and mounting holes (802) are formed in opposite sides of the inner wall of the contact tube (801).

2. The three-position switch assembly structure for an air cabinet according to claim 1, wherein: external threads are formed in the bottom of the outer wall of the contact tube (801), and internal threads matched with the external threads formed in the bottom of the outer wall of the contact tube (801) are formed in one end of the inner wall of the supporting insulating cylinder (6).

3. The three-position switch assembly structure for an air cabinet according to claim 1, wherein: the bottom of the inner wall of the supporting insulating cylinder (6) is provided with an internal thread, and one end of the outer wall of the grounding contact seat (9) is provided with an external thread which is matched with the internal thread provided at the bottom of the inner wall and the outer wall of the supporting insulating cylinder (6).

4. The three-position switch assembly structure for an air cabinet according to claim 1, wherein: three connecting grooves (111) which are equidistantly distributed are formed in the front face of the grounding reinforcing plate (7), and the specification of each connecting groove (111) is the same as the outer diameter of the bottom of the grounding contact seat (9).

5. The three-position switch assembly structure for an inflatable cabinet of claim 4, wherein: four connecting holes distributed in an annular array are formed in the inner bottom walls of the three connecting grooves (111), and the connecting holes are matched with the fasteners (10).