CN220271380U

CN220271380U - Drawer unit inspection bench of low-voltage switch cabinet

Info

Publication number: CN220271380U
Application number: CN202321447112.2U
Authority: CN
Inventors: 徐德勤; 罗景华; 邵陆锋; 王依铮
Original assignee: Ningbo Tianan Electric Technology Co ltd
Current assignee: Ningbo Tianan Electric Technology Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-12-29
Anticipated expiration: 2033-06-07

Abstract

The utility model relates to the field of switch cabinets and discloses a low-voltage switch cabinet drawer unit inspection bench, which comprises a base and a support framework with four open sides, wherein a positioning guide-in structure capable of guiding and moving a drawer unit is arranged on the base, a rear plate is vertically arranged at one end of the base far away from a guide-in end of the drawer unit, a primary inlet wire socket matched with a primary inlet wire plug of the drawer unit, a primary outlet wire socket matched with a primary outlet wire plug of the drawer unit and a secondary socket matched with a secondary plug of the drawer unit are arranged on the rear plate, and the inspection bench can directly perform batch detection after batch assembly of the drawer unit, so that the probability of poor matching when the drawer unit is assembled with a cabinet body is remarkably reduced.

Description

Drawer unit inspection bench of low-voltage switch cabinet

Technical Field

The utility model relates to the field of switch cabinets, in particular to a drawer unit inspection bench of a low-voltage switch cabinet.

Background

The low-voltage switch cabinets are divided into fixed type and draw-out type, wherein the application amount of the draw-out type low-voltage switch cabinets accounts for about 80% of the total application amount of the low-voltage switch cabinets. The draw-out type switch cabinet comprises a cabinet body and drawer units which are arranged on the cabinet body in a drawing mode, when the draw-out type switch cabinet is in practical application, according to different rated currents of the control switch, the height of the drawer units of the draw-out type switch cabinet is divided into three specifications of 200mm, 400mm and 600mm, the effective installation height of each cabinet is 1800mm, namely each cabinet generally comprises 3 to 9 drawer units.

The utility model provides a concrete structure can refer to the chinese patent publication of publication No. CN207398698U and discloses a low pressure pull-out type cubical switchboard, including the cabinet body, the open of cabinet body front side is interior to be distributed with a plurality of drawer units from top to bottom, and the rear side of drawer unit all is provided with two bus-bars that control interval was arranged, sets up three constant head tank on the bus-bar vertically, and two copper bar groups that control interval set up are from the cabinet body upper end rear side vertically penetrate the cabinet internal, and every copper bar group is provided with the copper bar that can insert three constant head tank and specification the same respectively, is in the electric conduction state after copper bar and constant head tank grafting.

Because the drawer unit is small in size and low in height, a professional manufacturer can assemble the drawer unit on a special workbench or on a production line, the assembled drawer unit is directly assembled into a corresponding cabinet body, and in the process of installing the drawer unit and the cabinet body, whether the drawer unit and the cabinet body can be matched can be checked. Be provided with on the drawer unit and advance line plug, advance line plug and secondary plug, correspond, be provided with in the cabinet body of switch board with advance line plug complex conductive copper bar, with advance line plug complex primary outlet socket, with secondary plug complex secondary socket, during the actual equipment, it is smooth to need three group's plug-ins all counterpoint just can guarantee the circular telegram, and according to current equipment mode, because the cabinet body of switch board is closed, during the assembly, the operating personnel hardly guarantees that three group's plug-ins's insertion degree of depth is enough, and the degree of depth of insertion is not enough, can lead to the plug-in components to generate heat even burn out, lead to the emergence of incident, and in case the plug-in components burn out, this drawer unit and cabinet body just need return to factory maintenance, and take time and energy must be wasted.

Disclosure of Invention

Aiming at the defects that the prior art drawer unit is difficult to ensure the full contact of the butt-joint connectors when being assembled with the cabinet body due to the closed structure of the cabinet body, the subsequent repair probability of returning to factories is improved, and time and labor are wasted, the utility model provides the low-voltage switch cabinet drawer unit inspection bench for inspecting after the drawer unit is assembled so as to improve the stability of matching with the cabinet body.

In order to solve the technical problems, the utility model is solved by the following technical scheme:

the drawer unit inspection bench of the low-voltage switch cabinet comprises a base and a supporting framework which is fixed on the base and is open on four sides, wherein a positioning and guiding structure capable of guiding and moving a drawer unit is arranged on the base; otherwise, judging that the drawer unit is unqualified.

By adopting the scheme, the four sides of the supporting framework are arranged in an open mode, all parts of the drawer unit can be clearly observed, whether the drawer unit slides smoothly with the cabinet body or not is detected through the positioning and guiding structure, and if the drawer unit is blocked at the positioning and guiding structure, the sliding parts of the drawer unit have dimensional deviation; the primary inlet wire socket, the primary outlet wire socket and the secondary socket which are arranged on the rear plate are respectively used for detecting the primary inlet wire plug, the primary outlet wire plug, the secondary plug setting position and the insertion depth after butt joint on the drawer units, the drawer units can be detected in batches through the inspection bench, the detected drawer units have the advantage of interchangeability, and each qualified drawer unit can be matched with a switch cabinet unit of the same size at will.

Preferably, the primary wire inlet socket comprises a positioning block fixed on the rear plate and a vertical bus fixed between the supporting framework and the base, the vertical bus comprises three copper bars which are vertically arranged in parallel and bus clamps which are positioned at two ends of the copper bars and synchronously clamp the three copper bars, one end of the positioning block, which is far away from the leading-in end of the drawer unit, is provided with a positioning groove which can be used for the three copper bars to be respectively positioned and penetrated, and one end of the positioning block, which is far away from the positioning groove, is provided with a socket which can be used for the primary wire inlet plug to be inserted and contacted with all the copper bars.

Preferably, the positioning and guiding structure comprises baffle plates which are vertically and parallelly arranged at the upper end of the base along the guiding direction of the drawer unit, the upper ends of the baffle plates are vertically folded relatively, the distance between the baffle plates is equal to the distance between the rollers at two sides of the qualified drawer unit, and the height from the baffle plates to the base is equal to the height of the rollers at two sides of the qualified drawer unit.

By adopting the scheme, the baffle is used for guiding the insertion direction and the insertion position of the drawer unit, the baffle edge is used for detecting the setting height of the roller, and if the drawer unit cannot be guided or blocked, the size of the drawer unit or the setting position of the roller on the drawer unit has deviation and needs to be reworked; if the drawer unit is smoothly guided, the size of the drawer unit and the setting position of the roller are qualified.

Preferably, a quick-change mechanism for quickly changing different rear plates is arranged between the base and the supporting framework.

By adopting the scheme, through the quick-change mechanism, the rear plate of the drawer unit which can be respectively matched with three height specifications of 200mm, 400mm and 600mm can be replaced, and the applicability of the inspection bench is improved.

Preferably, the quick-change mechanism comprises mounting columns which are arranged at vertical and parallel intervals at one end far away from the leading-in end of the drawer unit on the base, mounting holes which are arranged at vertical intervals on the mounting columns in a one-to-one correspondence manner, and screws, wherein the upper ends of the mounting columns are fixedly connected with the supporting framework, the screws are simultaneously in plug-in fit with the through holes and the mounting holes, and limiting pieces which are used for limiting the mounting columns to be separated from the rear plate and the mounting columns are arranged on the screws.

By adopting the scheme, a plurality of groups of mounting holes are formed, suitable mounting holes can be selected according to through holes of different rear plates, and the rear plates are limited by using the screws and the limiting parts.

Preferably, the limiting piece is a nut matched with the screw or an elastic ring in interference insertion fit with the screw.

By adopting the scheme, the nut and the elastic ring can be assembled with the screw, so that the assembly or disassembly of the rear plate and the upright post is realized.

The utility model has the remarkable technical effects due to the adoption of the technical scheme: the four sides of the supporting framework are provided with openings, so that each part of the drawer unit can be clearly observed, whether the drawer unit slides smoothly with the cabinet body or not is detected through the positioning and guiding structure, and if the drawer unit is blocked at the positioning and guiding structure, the sliding part of the drawer unit has size deviation; the primary inlet wire socket, the primary outlet wire socket and the secondary socket which are arranged on the rear plate are respectively used for detecting the primary inlet wire plug, the primary outlet wire plug, the secondary plug setting position and the insertion depth after butt joint on the drawer units, the drawer units can be detected in batches through the inspection bench, the detected drawer units have the advantage of interchangeability, and each qualified drawer unit can be matched with a switch cabinet unit of the same size at will.

Drawings

FIGS. 1-2 are isometric views of a low voltage switchgear drawer unit inspection station of the present embodiment;

FIG. 3 is an isometric view of a prior drawer unit;

fig. 4 is an isometric view of the inspection station of the present embodiment when inspecting a drawer unit;

FIG. 5 is a split view of the back plate, screws and elastomeric ring of the present embodiment;

fig. 6 is an enlarged view of a in fig. 5.

The names of the parts indicated by the numerical reference numerals in the above drawings are as follows: 1. a base; 2. a support skeleton; 201. a column; 202. a fixing frame; 3. a baffle; 4. a flange; 5. a rear plate; 501. a through hole; 6. a positioning block; 7. an insulation grid; 8. a primary outlet socket; 9. a secondary socket; 10. a positioning groove; 11. a copper bar; 12. a bus bar clip; 13. a screw; 14. a mounting column; 141. a mounting hole; 15. a drawer unit; 16. a primary wire inlet plug; 17. a conductive sheet; 18. a primary outlet plug; 19. a secondary plug; 20. a roller; 21. an elastic ring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings and examples.

Examples

The utility model provides a low tension switchgear drawer unit checkout stand, refer to the fig. 1-4 and show, including base 1 and fix on base 1 and four sides are open braced frame 2, braced frame 2 is including vertical stand 201 of fixing in base 1 four corners department and set up in stand 201 upper end and simultaneously with the fixed mount 202 of all stands 201, be provided with the location import structure that can supply drawer unit 15 guide to remove on the base 1, location import structure includes the baffle 3 of the vertical parallel arrangement of import direction along drawer unit 15 in base 1 upper end, the upper end of baffle 3 is turned over perpendicularly relatively and is had flange 4, the interval of baffle 3 equals the interval that qualified drawer unit 15 both sides gyro wheel 20 is dorsad, the height of flange 4 to base 1 equals the height of qualified drawer unit 15 both sides gyro wheel 20, through baffle 3 detectable drawer unit 15 plus both sides gyro wheel 20's width dimension, flange 4 then is used for detecting gyro wheel 20's setting height, both are qualified, just can drive drawer unit 15 and location import structure smooth cooperation.

A rear plate 5 is vertically arranged on one side far away from the leading-in end of the drawer unit 15, a primary wire inlet socket matched with a primary wire inlet plug 16 of the drawer unit 15, a primary wire outlet socket 8 matched with a primary wire outlet plug 18 of the drawer unit 15 and a secondary socket 9 matched with a secondary plug 19 of the drawer unit 15 are arranged on the rear plate 5, the primary wire inlet socket comprises a positioning block 6 fixed on the rear plate 5 and a vertical bus fixed on a supporting framework 2, the vertical bus comprises three copper bars 11 vertically arranged in parallel and bus clamps 12 positioned at two ends of the copper bars 11 and synchronously clamping the three copper bars 11, the bus clamps 12 are respectively fixed on a base 1 and a fixing frame 202, one end of the positioning block 6 far away from the leading-in end of the drawer unit 15 is provided with a positioning groove 10 through which the three copper bars 11 can be respectively positioned, one end of the positioning block 6 far away from the positioning groove 10 is provided with a jack which the primary wire inlet plug 16 can be inserted and contacted with all the copper bars 11, an insulating grid 7 is arranged in the jack, the primary wire inlet plug 16 is fully contacted with the copper bars 11, the positioning block is more difficult to be contacted with the copper bars 11, the positioning block 6 can play a role in positioning copper bars 11 and the first copper bars 17 are fully contacted with the supporting framework 17, if the situation is not fully contacted with the copper bars 17, and people can fully contact with the copper bars 11, and can not fully contact with the supporting framework 15, and clearly, if the situation can be clearly contact with the drawer unit through the copper bars with the copper bars, and the wiring lines 17, and the lead-frame is fully well-opened.

The quick-change mechanism for quickly replacing different rear plates 5 is arranged between the base 1 and the supporting framework 2, and is shown in combination with fig. 5-6, the quick-change mechanism comprises mounting columns 14 which are vertically arranged at one end far away from the leading-in end of the drawer unit 15 and are arranged at parallel intervals on the base 1, mounting holes 141 which are vertically arranged at intervals on the mounting columns 14 and are arranged in a one-to-one correspondence manner, and screws 13, the upper ends of the mounting columns 14 are fixedly connected with a fixing frame 202, the screws 13 are simultaneously in plug-in fit with the through holes 501 and the mounting holes 141, limiting pieces which limit the rear plates 5 and the mounting columns 14 to be separated from are arranged on the screws 13, the limiting pieces are nuts matched with the screws 13 or elastic rings 21 in interference plug-in fit with the screws 13, the elastic rings 21 are adopted in the embodiment, the quick-change of the rear plates 5 can be realized through the installation or the disassembly of the elastic rings 21, and in the embodiment, the rear plates 5 of the drawer unit 15 with the heights of 200mm, 400mm and 600mm are respectively matched through the quick-change structure, and are replaced in actual production.

The setting principle is as follows: the inspection bench that adds, its structure is unanimous with the cabinet body size of actual switch cabinet, but be open setting all around, be convenient for the assembly personnel observe, this inspection bench mainly used detects whether the size of drawer unit 15 matches with cabinet body size, detect whether three group's plugs on the drawer unit 15 and three group's sockets on the cabinet body are counterpoint and after counterpoint the depth of insertion enough, only satisfy simultaneously that the size matches, counterpoint is accurate and the enough drawer unit 15 of depth of insertion, just be the qualification product, detect qualified drawer unit 15 can match with the switch cabinet body of arbitrary same batch, possess good interchangeability.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a low tension switchgear drawer unit checkout stand which characterized in that: the automatic feeding device comprises a base (1) and a supporting framework (2) which is fixed on the base (1) and is open on four sides, wherein a positioning guide-in structure for guiding and moving a drawer unit (15) is arranged on the base (1), a rear plate (5) is vertically arranged at one end far away from a guide-in end of the drawer unit (15), a primary wire inlet socket which is matched with a primary wire inlet plug (16) of the drawer unit (15), a primary wire outlet socket (8) which is matched with a primary wire outlet plug (18) of the drawer unit (15) and a secondary socket (9) which is matched with a secondary plug (19) of the drawer unit (15) are arranged on the rear plate (5), and when the drawer unit (15) is guided to the maximum stroke along the positioning guide-in structure, if the primary wire inlet plug (16) and the primary wire inlet socket, the primary wire outlet plug (18) and the secondary plug (19) and the secondary socket (9) are plugged in place and fully contacted, the drawer unit (15) is judged to be qualified; otherwise, the drawer unit (15) is judged to be unqualified.

2. A low voltage switchgear drawer unit inspection station according to claim 1, characterized in that: the primary wire inlet socket comprises a positioning block (6) fixed on a rear plate (5) and a vertical bus fixed between a supporting framework (2) and a base (1), wherein the vertical bus comprises three copper bars (11) which are vertically arranged in parallel and bus clamps (12) which are positioned at two ends of the copper bars (11) and synchronously clamp the three copper bars (11), one end of the positioning block (6) away from the leading-in end of a drawer unit (15) is provided with a positioning groove (10) through which the three copper bars (11) can be respectively positioned, and one end of the positioning block (6) away from the positioning groove (10) is arranged into a socket which can be used for inserting a primary wire inlet plug (16) and is contacted with all the copper bars (11).

3. A low voltage switchgear drawer unit inspection station according to claim 1, characterized in that: the positioning guide structure comprises baffle plates (3) which are vertically and parallelly arranged at the upper end of the base (1) along the guide direction of the drawer unit (15), the upper ends of the baffle plates (3) are vertically folded relatively, the distance between the baffle plates (3) is equal to the distance between the rollers (20) at the two sides of the qualified drawer unit (15) and the distance between the baffle plates (4) and the base (1) is equal to the height between the rollers (20) at the two sides of the qualified drawer unit (15).

4. A low voltage switchgear drawer unit inspection station according to claim 1, characterized in that: a quick-change mechanism for quickly changing different rear plates (5) is arranged between the base (1) and the supporting framework (2).

5. A low voltage switchgear drawer unit inspection station according to claim 4, characterized in that: the quick-change mechanism comprises mounting columns (14) which are arranged on the base (1) at intervals vertically and parallelly at one end far away from the leading-in end of the drawer unit (15), mounting holes (141) and screws (13) which are arranged on the mounting columns (14) at intervals vertically and in one-to-one correspondence, the upper ends of the mounting columns (14) are fixedly connected with the supporting framework (2), the screws (13) are simultaneously matched with the through holes (501) and the mounting holes (141) in an inserting mode, and limiting pieces which limit the screws (13) to be separated from the rear plates (5) and the mounting columns (14) are arranged on the screws (13).

6. A low voltage switchgear drawer unit inspection station according to claim 5, characterized in that: the limiting piece is a nut matched with the screw (13) or an elastic ring (21) in interference insertion fit with the screw (13).