CN220421256U

CN220421256U - Switch cabinet base

Info

Publication number: CN220421256U
Application number: CN202323601447.8U
Authority: CN
Inventors: 殷玉伟; 铁广全; 陈龙
Original assignee: Shandong Chunxu Electrical Co ltd
Current assignee: Shandong Chunxu Electrical Co ltd
Priority date: 2023-12-28
Filing date: 2023-12-28
Publication date: 2024-01-30
Anticipated expiration: 2033-12-28

Abstract

The utility model relates to the field of switch cabinets and discloses a switch cabinet base, which comprises a bottom frame, a support and a guide assembly; the guide assembly comprises two guide shaft seats, two guide rails and two guide shafts, each guide shaft seat is vertically arranged between the bottom frame and the lower partition plate of the switch cabinet, each guide rail is arranged on the bottom frame, and one end of each guide rail and one end of each guide shaft are fixed on the guide shaft seat. After the utility model is arranged on a switch cabinet, the breaker trolley can travel in a given direction under the constraint of two guide rails, and is not easy to deviate, and the breaker trolley enables a breaker contact arm to be in concentric contact with a static contact under the constraint of two guide shafts, so that the breaker can be reliably contacted, and safety accidents are avoided; meanwhile, the bottom frame ensures that the bottom plate of the cabinet body cannot sag, and no height difference exists between the contact arm and the fixed contact of the circuit breaker; the utility model has the advantages of high processing precision, high standardization degree and high strength.

Description

Switch cabinet base

Technical Field

The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet base.

Background

The new energy industry rapidly develops, and the demand of KYN61 cabinets is larger and larger, however, the switch cabinets are easy to deform and the door plates of the switch cabinets are sagged due to the influence of the flatness of the foundation on site. The existing switch cabinet base is directly fixed on the bottom plate, the intensity of the bottom plate cannot be guaranteed, the inclination of the side plates cannot be controlled, the diagonal of the cabinet body of the switch cabinet cannot be guaranteed, the sagging of the door plate of the switch cabinet is aggravated, and particularly, when in field operation, the door opening plates of a plurality of switch cabinets cannot be opened quickly, so that the requirement of quick unlocking cannot be met.

Meanwhile, as the handcart body of the circuit breaker is heavier, under the condition of poor intensity of the bottom plate, the bottom plate is drooped after the circuit breaker is pushed into the switch cabinet, so that the height difference between the contact arm of the circuit breaker and the static contact is caused, the contact arm of the circuit breaker and the static contact are not concentric, and the circuit breaker is in poor contact, so that accidents occur.

The cubical switchboard base is concatenation formula among the prior art, can't guarantee the post assembling precision, makes the guide rail slope that sets up on the base, appears the problem of card resistance when the circuit breaker handcart business turn over along the guide rail, and the circuit breaker handcart shakes into the back moreover, and the circuit breaker left and right sides direction slope can't guarantee circuit breaker touch arm and static contact concentricity.

Disclosure of Invention

Aiming at the defects, the technical problems to be solved by the utility model are as follows: the switch cabinet base is high in machining precision, standardization degree and strength, the contact arm and the fixed contact of the circuit breaker are enabled to concentrically contact, and the use safety of the switch cabinet is improved.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a switch cabinet base comprises a bottom frame, a support vertically arranged at the outer edge of the bottom frame and a guide assembly; the support is used for being connected with the side plate of the switch cabinet; the guide assembly is used for guiding the circuit breaker handcart, the guide assembly comprises two guide shaft seats which are arranged in parallel, two guide rails which are arranged in parallel and two guide shafts which are arranged in parallel, each guide shaft seat is vertically arranged between the bottom frame and the lower partition plate of the switch cabinet, each guide rail is arranged on the bottom frame, one end of each guide rail and one end of each guide shaft are fixed on the corresponding guide shaft seat, and each guide rail and each guide shaft are horizontally extended.

Preferably, an inserting structure is arranged between each guide rail and the corresponding guide shaft seat, and the inserting structure comprises an inserting plate arranged at the end part of each guide rail and an inserting groove arranged on the guide shaft seat.

Preferably, one end of each guide rail, which is away from the guide shaft seat, is provided with an opening.

Preferably, the cross section of each guide shaft seat is C-shaped; a reinforcing plate is arranged at the opening of each guide shaft seat; one end of each guide shaft penetrates through the corresponding guide shaft seat and the corresponding reinforcing plate.

Preferably, the switch cabinet base further comprises a supporting beam which is arranged one to one with the guide rails, the extending direction of the supporting beam is the same as that of the guide rails, the bottom of the supporting beam is fixed on the bottom frame, and the top of the supporting beam is fixed with the corresponding guide rails.

Preferably, each guide rail is connected with the corresponding supporting beam through a fastener, and the fastener comprises a counter bore formed in the guide rail, a hexagon nut formed in the supporting beam and a countersunk head screw penetrating through the counter bore and the hexagon nut.

Preferably, a positioning notch is arranged between each support beam and the bottom frame.

Preferably, the bottom frame comprises two longitudinal beams and a plurality of cross beams, all the cross beams are arranged at intervals in parallel, the two longitudinal beams are respectively arranged at two ends of all the cross beams, and the support is arranged at the joint of the longitudinal beams and the cross beams.

Preferably, each of the longitudinal beams, each of the transverse beams, the brackets and/or the support beams has a G-shaped cross section.

Preferably, each longitudinal beam, each transverse beam and/or each supporting beam is provided with a positioning hole.

After the technical scheme is adopted, the utility model has the beneficial effects that:

the switch cabinet base comprises a bottom frame, and a support and a guide assembly vertically arranged at the outer edge of the bottom frame; the support is used for being connected with the side plate of the switch cabinet; the guide assembly is used for guiding the circuit breaker handcart, and the guide assembly comprises two guide shaft seats which are arranged in parallel, two guide rails which are arranged in parallel and two guide shafts which are arranged in parallel, each guide shaft seat is vertically arranged between the bottom frame and the lower partition plate of the switch cabinet, each guide rail is arranged on the bottom frame, one end of each guide rail and one end of each guide shaft are fixed on the corresponding guide shaft seat, and each guide rail and each guide shaft are horizontally extended. When in actual use, the bottom frame is arranged on the bottom plate of the switch cabinet, and the support is connected with the side plate of the switch cabinet; the base of the utility model has enough structural strength, so that the bottom plate, the side plate and the like of the switch cabinet can not be deformed, the switch cabinet can meet the requirement of quick unlocking, the left and right deflection can not occur when the breaker trolley is rocked into the switch cabinet under the action of the two guide rails, and the bottom plate of the switch cabinet can not sink, thereby ensuring that the height difference between the breaker contact arm and the static contact can not occur, the breaker contact arm and the static contact can be in concentric contact, and particularly under the action of the guide shaft, the bottom of the breaker trolley can not be tilted when the breaker contact arm and the static contact are in contact, and further ensuring that the breaker contact arm and the static contact can be in concentric contact, thereby avoiding causing safety accidents. Therefore, the switch cabinet base has the advantages of high machining precision, high standardization degree and high strength, solves the technical problems in the prior art, and improves the use safety of the switch cabinet.

Drawings

FIG. 1 is a schematic view of a switchgear cabinet base of the present utility model;

FIG. 2 is a schematic view of the split structure of the cross beam and the support beam of the present utility model;

FIG. 3 is a schematic view of the structure of the cross beam of the present utility model;

FIG. 4 is a schematic view of another angle of the cross beam of the present utility model;

FIG. 5 is a schematic view of a part of the structure of the guide rail of the present utility model;

FIG. 6 is a schematic view showing a split structure of a guide rail and a support beam in the present utility model;

FIG. 7 is a schematic view of a split construction of a guide assembly according to the present utility model;

FIG. 8 is a schematic view of a G-type cross-section of the present utility model;

fig. 9 is a schematic view of the structure of the present utility model and a circuit breaker cart;

FIG. 10 is a schematic view of the structure of the utility model when installed in a switchgear cabinet;

in the figure: 1-supporting seat, 2-bottom frame, 20-longitudinal beam, 21-cross beam, 30-positioning notch, 31-positioning hole, 4-guiding component, 40-guide rail, 400-plugboard, 401-counter bore, 402-opening, 41-guiding shaft seat, 410-slot, 42-guiding shaft, 43-reinforcing plate, 44-mounting positioning hole, 5-static contact, 6-switch cabinet side plate, 7-hexagonal nut, 8-circuit breaker handcart, 9-switch cabinet lower partition plate and 10-supporting beam.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

As shown in fig. 1 to 10 together, a cabinet base comprises a bottom frame 2, a support 1 vertically arranged at the outer edge of the bottom frame 2, and a guide assembly 4; the support 1 is used for being connected with a side plate 6 of the switch cabinet; the guide assembly 4 is used for guiding the circuit breaker handcart 8, the guide assembly 4 comprises two guide shaft seats 41 which are arranged in parallel, two guide rails 40 which are arranged in parallel and two guide shafts 42 which are arranged in parallel, each guide shaft seat 41 is vertically arranged between the bottom frame 2 and the lower partition plate 9 of the switch cabinet, each guide rail 40 is arranged on the bottom frame 2, one end of each guide rail 40 and one end of each guide shaft 42 are fixed on the corresponding guide shaft seat 41, and each guide rail 40 and each guide shaft 42 are horizontally extended.

As shown in fig. 1 and 2, the bottom frame 2 in this embodiment includes two longitudinal beams 20 and a plurality of cross beams 21, all the cross beams 21 are arranged at intervals in parallel, the two longitudinal beams 20 are separately arranged at two ends of all the cross beams 21, and the support 1 is arranged at the joint of the longitudinal beam 20 and the cross beam 21. Specifically, the bottom of the support 1 is provided with an extended connection plate, which is connected with the bottom frame 2 to enhance the structural strength.

As shown in fig. 1, 2 and 6, the switch cabinet base in this embodiment further includes a support beam 10 disposed one-to-one with the guide rails 40, the extension direction of the support beam 10 is the same as the extension direction of the guide rails 40, specifically, the extension direction of the support beam 10 is the same as the extension direction of the longitudinal beams 20, the bottom of the support beam 10 is fixed on the bottom frame 2, and the top of the support beam 10 is fixed with the corresponding guide rail 40.

As shown in fig. 6, each guide rail 40 is connected with the corresponding support beam 10 through a fastener, and the fastener comprises a counter bore 401 arranged on the guide rail 40, a hexagonal nut 7 arranged on the support beam 10, and a countersunk head screw passing through the counter bore 401 and the hexagonal nut 7; specifically, a plurality of counter bores 401 and hex nuts 7 are provided between the guide rail 40 and the support beam 10. The accuracy of the guide rail 40 is guaranteed and the circuit breaker trolley 8 is avoided through countersunk head screw fixation.

As shown in fig. 1, 2 and 9, in this embodiment, a plugging structure is disposed between each guide rail 40 and the corresponding guide shaft seat 41, and the plugging structure includes a plug board 400 disposed at an end of the guide rail 40 and a slot 410 disposed on the guide shaft seat 41. Before the guide rail 40 is welded with the guide shaft seat 41, connection can be established between the insert plate 400 and the slot 410, so that positioning is realized, and the machining and assembling precision is improved.

As shown in fig. 5, the end of each guide rail 40 facing away from the guide shaft seat 41 has an opening 402, and the opening 402 allows the circuit breaker trolley 8 to be conveniently moved into the guide rail 40.

As shown in fig. 7, each guiding axle seat 41 has a C-shaped cross section; a reinforcing plate 43 is arranged at the opening of each guide shaft seat 41; the tail part of each guide shaft 42 is of a step structure, and the tail part of each guide shaft 42 passes through the corresponding guide shaft seat 41 and the corresponding reinforcing plate 43, and the reinforcing plate 43 increases the structural strength of the guide shaft seat 41, so that the guide shafts 42 can be reliably installed and fixed, and accurate guide is provided.

As shown in fig. 7, when the guide assembly 4 is assembled, the reinforcing plate 43 is precisely positioned on the guide shaft seat 41 by positioning and cutting, then the step structure at the tail of the guide shaft 42 passes through the guide shaft seat 41 and the mounting and positioning holes 44 on the reinforcing plate 43, and then the guide shaft 42, the guide shaft seat 41 and the reinforcing plate 43 are fixed together by welding. A certain space is formed between the reinforcing plate 43 and the guide shaft seat 41, which ensures the strength of the guide shaft 42. After the guide rail 40 is fixed on the supporting beam 10, the rear end plugboard 400 is inserted into the slot 410 on the guide shaft seat 41, the height of the guide shaft 42 is positioned through the slot 410, and then the guide shaft seat 41 is fixed on the lower partition 9 of the switch cabinet, so that the guide rail 40 is accurately positioned to the center of the guide shaft 42.

The guide rails 40 are fixed on the support beam 10, and the parallelism and the width of the two guide rails 40 are guaranteed in the fixing mode, so that the circuit breaker handcart 8 is guaranteed to be free of blocking in the pushing process, and the front end of the circuit breaker is inserted into the guide shaft 42 in the swinging process, so that the circuit breaker is accurately positioned; the bottom plate of the switch cabinet is reinforced by the bottom frame 2, so that the circuit breaker handcart 8 does not droop when being pushed in, the height from the guide rail 40 to the fixed contact 5 is ensured, and the concentricity of the contact arm of the circuit breaker handcart 8 and the fixed contact 5 is ensured.

As shown in fig. 1 and 2, in this embodiment, a positioning notch 30 is disposed between each support beam 10 and the bottom frame 2, specifically, each support beam 10 and all the cross beams 21 are provided with a positioning notch 30, and the positioning notch 30 is disposed, so that the support beams 10 and the cross beams 21 can be assembled in a snap-in manner, thereby ensuring the precision before welding.

As shown in fig. 8, in this embodiment, the cross section of each longitudinal beam 20, each cross beam 21, each support 1 and/or each support beam 10 is G-shaped, and this structure improves the structural strength of the whole switchgear chassis, so as to reliably support the circuit breaker handcart 8, and further ensure that the contact arm and the static contact 5 of the circuit breaker have no height difference. Meanwhile, the bottom plate of the switch cabinet is prevented from sinking, and the switch cabinet can be opened quickly.

As shown in fig. 3, 4 and 5, in this embodiment, each longitudinal beam 20, each transverse beam 21 and/or each supporting beam 10 is provided with a positioning hole 31, and the positioning holes 31 are used for positioning welding of a fixture, that is, before assembly, the longitudinal beam 20, the transverse beam 21 and the supporting beam 10 are positioned on the welding fixture through the positioning holes 31, so that the welding precision is ensured, and the processing precision and the structural strength of the base of the switch cabinet are improved.

The support 1 is connected with the bottom frame 2 in a welded mode, the connection mode ensures the perpendicularity of the bottom plate of the switch cabinet, and after the side plate 6 of the switch cabinet is connected with the support 1, the perpendicularity of the side plate 6 of the switch cabinet and the bottom plate of the switch cabinet is ensured, so that the condition that the front door of the switch cabinet sags due to the inclination of the switch cabinet is avoided.

As shown in fig. 1 to 10 together, when the switch cabinet base of the utility model is used, the bottom frame 2 is arranged on the bottom plate of the switch cabinet, and the support 1 is connected with the side plate 6 of the switch cabinet; the utility model has enough structural strength, so that the bottom plate, the side plate and the like of the switch cabinet can not be deformed, and the switch cabinet can meet the requirement of quick unlocking;

meanwhile, under the action of the two guide rails 40, the condition of left and right offset cannot occur when the breaker trolley swings into the switch cabinet, so that the bottom plate of the switch cabinet is prevented from sinking, the height difference between the breaker contact arm and the fixed contact 5 cannot occur, and the breaker contact arm and the fixed contact 5 can be concentrically contacted;

especially, under the action of the guide shaft 42, when the contact arm of the circuit breaker is contacted with the fixed contact 5, the bottom of the trolley of the circuit breaker can not tilt, so that the contact arm of the circuit breaker and the fixed contact 5 can be further contacted concentrically, and accidents are avoided.

Therefore, the switch cabinet base has the advantages of high machining precision, high standardization degree and high strength, solves the technical problems in the prior art, and improves the use safety of the switch cabinet.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather, any modifications, improvements in or relating to the base of a switchgear cabinet, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The switch cabinet base is characterized by comprising a bottom frame, a support vertically arranged at the outer edge of the bottom frame and a guide assembly;

the support is used for being connected with the side plate of the switch cabinet;

the guide assembly is used for guiding the circuit breaker handcart, the guide assembly comprises two guide shaft seats which are arranged in parallel, two guide rails which are arranged in parallel and two guide shafts which are arranged in parallel, each guide shaft seat is vertically arranged between the bottom frame and the lower partition plate of the switch cabinet, each guide rail is arranged on the bottom frame, one end of each guide rail and one end of each guide shaft are fixed on the corresponding guide shaft seat, and each guide rail and each guide shaft are horizontally extended.

2. The switch cabinet base according to claim 1, wherein a plug structure is arranged between each guide rail and the corresponding guide shaft seat, and the plug structure comprises a plug board arranged at the end part of the guide rail and a slot arranged on the guide shaft seat.

3. The switch cabinet base according to claim 1, wherein an end of each of the guide rails facing away from the guide shaft seat has an opening.

4. A switchgear cabinet base according to any of the claims 1-3, characterized in that,

the cross section of each guide shaft seat is C-shaped;

a reinforcing plate is arranged at the opening of each guide shaft seat;

one end of each guide shaft penetrates through the corresponding guide shaft seat and the corresponding reinforcing plate.

5. The switch cabinet base according to claim 1, further comprising a support beam disposed one-to-one with the guide rails, the support beam extending in the same direction as the guide rails, the bottom of the support beam being fixed to the bottom frame, the top of the support beam fixing the corresponding guide rail.

6. The switch cabinet base according to claim 5, wherein each guide rail is connected to the corresponding support beam by a fastener, and the fastener includes a counterbore formed in the guide rail, a hexagonal nut formed in the support beam, and a countersunk screw passing through the counterbore and the hexagonal nut.

7. The switchgear cabinet base according to claim 5, characterized in that a positioning cutout is provided between each of the support beams and the bottom frame.

8. The switch cabinet base according to claim 5, wherein the bottom frame comprises two longitudinal beams and a plurality of cross beams, all the cross beams are arranged at intervals in parallel, the two longitudinal beams are respectively arranged at two ends of all the cross beams, and the support is arranged at the joint of the longitudinal beams and the cross beams.

9. The switchgear pedestal of claim 8 wherein each of the stringers, each of the cross-beams, the mounts, and/or the support beams is G-shaped in cross-section.

10. The switchgear pedestal of claim 8 wherein each of the stringers, each of the cross beams, and/or the support beams is provided with a locating hole.