Quick clamping structure for file cabinet
By using symmetrically arranged mounting slots and elastic nut blocks on profile columns to fix the filing cabinet, the problem of low assembly efficiency was solved, enabling quick snap-fitting and simplified installation, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN BAISHITE CONTROL DISPLAY EQUIP CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-19
AI Technical Summary
The existing filing cabinets have low assembly efficiency, making it difficult to meet the needs of mass production, and the connection efficiency of the profile frame is also low.
The mounting slots are symmetrically arranged on the profile columns. The side plates and rear plates are quickly engaged with the mounting slots of the profile columns through L-shaped folds, and are fixed by elastic nut blocks and bolts, reducing the need for screw connections.
This improved the assembly efficiency of the filing cabinet, enabled rapid pre-installation of the back panel and side panels, simplified the on-site installation process, and increased production efficiency.
Smart Images

Figure CN224250985U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle control room filing cabinet technology, specifically to a quick-connect structure for filing cabinets. Background Technology
[0002] As the image window and station-level control platform of each subway line, the overall aesthetics, functional reliability, and human-machine harmony of the subway station control room have always been highly valued.
[0003] The vehicle control room is neatly arranged with filing cabinets for storing documents and materials. To enhance the aesthetics of the control room, these filing cabinets typically use aluminum profiles as frames, which offer advantages such as lightweight construction, high load-bearing capacity, and a strong sense of space. However, existing filing cabinets have two sets of profile frames, each consisting of four profiles. The top, bottom, and four side panels are all connected to the profiles with screws, resulting in low assembly efficiency and hindering mass production. Utility Model Content
[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a quick-connect structure for filing cabinets. The mounting slots symmetrically arranged on the profile columns can realize the quick connection between the back panel and the side panel, which greatly improves the assembly efficiency.
[0005] The purpose of this utility model is achieved as follows:
[0006] A quick-connect structure for a filing cabinet includes profile columns, side panels, and a back panel. The profile columns are symmetrically provided with mounting slots on the left and right sides. The side panels are provided with side panel retaining edges corresponding to the mounting slots. The back panel is provided with an L-shaped folded edge corresponding to the profile columns. The L-shaped folded edge includes a back panel facing edge and a back panel retaining edge. The back panel facing edge is attached to the side of the corresponding profile column. The side panel retaining edge and the back panel retaining edge are inserted together into the mounting slots corresponding to the profile columns. Elastic nut blocks are spaced apart in the mounting slots. Bolts extend into the mounting slots to connect the elastic nut blocks.
[0007] Preferably, the mounting slot has symmetrically provided limiting edges.
[0008] Preferably, the end of the side plate clip and the end of the rear plate clip, which extend into the mounting slot, are flush with the inner surface of the limiting stop.
[0009] Preferably, the side plate and the rear plate are integrally bent and formed, and the outer surface of the end of the limiting stop near the groove is provided with an avoidance notch to avoid the bending corner of the side plate clamping edge and the rear plate clamping edge.
[0010] Preferably, the mounting slot on one side of the profile column is used for the snap-fit fixing of the side panel and the back panel of one cabinet, and the mounting slot on the other side is used for the snap-fit fixing of the side panel and the back panel of another cabinet.
[0011] Preferably, a pressure-bearing cavity is provided on the rear side of the mounting slot, and the two pressure-bearing cavities are symmetrical from left to right.
[0012] Preferably, a spare slot is provided on the front side of the mounting slot, and the spare slot is located on the symmetrical center line of the profile body.
[0013] Preferably, the spare card slot has weight reduction holes on both the left and right sides.
[0014] Preferably, the profile column is further provided with mounting holes, which are located on the center line of symmetry and on the rib between the mounting groove and the pressure-bearing cavity.
[0015] The beneficial effects of this utility model are:
[0016] The symmetrically arranged mounting slots on the profile columns enable quick snap-fit connection between the back panel and the side panels, greatly improving assembly efficiency. The side panel clips and back panel clips formed by folding the back panel and side panel are inserted into the corresponding mounting slots on the profile columns, enabling rapid pre-installation of the side panels and back panels. The bolts extend into the elastic nut blocks in the mounting slots, and the elastic nut blocks press and fix the side panels and back panels. Each panel no longer needs to be connected to the profile screws, realizing rapid assembly of the back panel and side panels and providing convenience for on-site installation of the filing cabinet. Attached Figure Description
[0017] Figure 1 This is a structural schematic diagram of an integrated file cabinet according to the present invention.
[0018] Figure 2 for Figure 1 A magnified view of a portion of the image.
[0019] Figure 3 This is a sectional view of the assembly of the rear panel, side panels, and profile columns.
[0020] Figure 4 This is a schematic diagram of the cross-section of a profile column.
[0021] Figure 5 This is an assembly diagram of an integrated file cabinet according to the present invention (the cabinet door is not shown).
[0022] Figure 6 for Figure 5 A magnified view of part A.
[0023] Figure 7 for Figure 5 A magnified view of section B.
[0024] The components include: profile column 1; mounting slot 1.1; limiting stop 1.1.1; pressure bearing cavity 1.2; spare slot 1.3; weight reduction hole 1.4; mounting hole 1.5; side plate 2; side plate clamping edge 2.1; mounting edge 2.2; back plate 3; back plate edge 3.1; back plate clamping edge 3.2; L-shaped overlapping edge 3.3; top plate 4; bottom plate 5; top crossbeam 6; L-shaped fitting section 6.1; vertical connecting section 6.2; horizontal connecting section 6.3; L-shaped connecting section 6.4; downward folding edge 6.5; bottom crossbeam 7; elastic nut block 8; T-nut 9; partition plate 10; bolt 11; double-leaf cabinet door 12; drawer 13; guard plate 14. Detailed Implementation
[0025] See Figure 1-7 This utility model relates to an integrated file cabinet, including a cabinet body. The cabinet body is composed of profile columns 1, side panels 2, rear panels 3, top panels 4, bottom panels 5, top crossbeams 6 and bottom crossbeams 7. The four profile columns 1 are rectangularly distributed at the four corners of the cabinet body. Side panels 2 are clamped between adjacent profile columns 1 at the front and back. Top crossbeams 6 are provided at the top and bottom crossbeams 7 are provided at the bottom between adjacent profile columns 1 on the left and right sides. Two top crossbeams 6 are connected to the top panel and two bottom crossbeams 7 are connected to the bottom panel 5. A rear panel 3 is provided between the top crossbeam 6 and the bottom crossbeam 7 on the rear side. The left and right sides of the rear panel 3 are respectively clamped to the profile columns 1 on the corresponding sides.
[0026] Two adjacent profile columns 1 are symmetrically arranged. Each profile column 1 has symmetrical mounting slots 1.1 on its left and right sides. These mounting slots 1.1 are used to install elastic nut blocks 8 or T-nuts 9 for fixing the top crossbeam 6, bottom crossbeam 7, quick connection and fixing of the side panel 2 and rear panel 3, fixing of the internal cabinet panels 10, and fixing of the door hinges. The mounting slots 1.1 on the inside of the profile column are used for installing this cabinet, while the mounting slots 1.1 on the outside of the cabinet are used for installing other adjacent cabinets.
[0027] The side plate 2 has symmetrical side plate retaining edges 2.1 on its front and rear sides, and the rear plate 3 has symmetrical L-shaped folded edges on its left and right sides. The L-shaped folded edges include a rear plate facing edge 3.1 and a rear plate retaining edge 3.2. The rear plate facing edge 3.1 is attached to the inner side of the corresponding profile column 1. The side plate retaining edge 2.1 and the rear plate retaining edge 3.2 are inserted into the corresponding mounting slot 1.1 of the profile column to realize the quick pre-installation of the side plate 2 and the rear plate 3. A gap is left between the side plate retaining edge 2.1 and the rear plate retaining edge 3.2 to facilitate the passage of the bolt 11.
[0028] Elastic nut blocks 8 are spaced apart within the mounting slots 1.1. Bolts 11 extend from inside the cabinet into the elastic nut blocks 8 within the mounting slots 1.1, securing the side panels 2 and rear panels 3. The ends of the side panel retaining edges 2.1 and 3.2 extending into the mounting slots 1.1 are flush with the inner surface of the limiting stop 1.1.1 of the mounting slot 1.1, facilitating the simultaneous clamping of the side panel retaining edges 2.1 and 3.2 by the elastic nut blocks 8. The side panel retaining edge located on the front side of the side panel 2 is inserted into the mounting slot 1.1 of the profile column located on the front side, and the elastic nut blocks 8 clamp the side panel retaining edge on the front side of the side panel individually.
[0029] The cabinet is equipped with multiple partitions 10, which divide the cabinet into multiple storage areas. The partitions 10 are fixed in the mounting slots 1.1 of the profile columns by bolts 11. In order to save material costs, the bolts 11 first pass through the partitions 10 and enter the elastic nut block 8 in the mounting slots 1.1, thereby achieving the connection and fixation of the side panels 2 and the rear panel 3, as well as the fixation of the partitions 10.
[0030] The side plate 2 has symmetrical mounting edges 2.2 on its upper and lower sides. The mounting edges 2.2 are connected to the top crossbeam 6 and the bottom crossbeam 7 by rivets. The rear plate 3 has symmetrical L-shaped overlapping edges 3.3 on its upper and lower sides for overlapping the top crossbeam 6 and the bottom crossbeam 7.
[0031] The top crossbeam 6 is integrally bent and formed, including an L-shaped fitting section 6.1, a vertical connecting section 6.2, a horizontal connecting section 6.3, and an L-shaped connecting section 6.4 connected in sequence. The L-shaped fitting section 6.1 fits with the L-shaped overlapping edge 3.3 of the back plate 3. The end of the L-shaped fitting section 6.1 is recessed inward to avoid the profile column 1. The vertical connecting section fits with the outer side of the profile column 1 and is fixed with screws. The end of the horizontal connecting section 6.3 fits with the top surface of the profile column 1, and the end of the horizontal connecting section 6.3 has a downward folded edge 6.5 corresponding to the mounting groove 1.1. The downward folded edge 6.5 is connected and fixed to the mounting groove 1.1 by T-nuts 9 and bolts. The two ends of the L-shaped connecting section 6.4 are connected to the mounting edge 2.2 of the side plate 2 by rivets, and the middle part of the L-shaped connecting section 6.4 is fixed to the top plate 4 by screws.
[0032] The bottom crossbeam 7 has the same structure as the top crossbeam 6. The vertical connecting section of the bottom crossbeam 7 is higher than that of the top crossbeam 6. The bottom crossbeam 7 is connected to the outer side of the profile column 1 by multiple screws to ensure the connection strength and load-bearing strength between the profile column 1 and the bottom crossbeam 7.
[0033] The cabinet has three storage areas: upper, middle and lower. The upper and lower storage areas are connected to double cabinet doors 12 by door hinges on the front. The middle storage area has multiple drawers 13 for convenient storage flexibility.
[0034] The profile column 1 has a rectangular cross-section that is symmetrical from left to right. It includes a profile body. The profile body is provided with mounting slots 1.1 symmetrically on the left and right sides. A pressure-bearing cavity 1.2 is provided on the rear side of the mounting slots 1.1. The two pressure-bearing cavities 1.2 are symmetrical from left to right. A spare slot 1.3 is provided on the front side of the mounting slots 1.1. The spare slot 1.3 is located on the symmetrical center line of the profile body. Weight reduction holes 1.4 are provided on the left and right sides of the spare slot 1.3.
[0035] The spare slot 1.3 is set on the inner side of the two adjacent and symmetrically arranged profile columns 1, and the pressure chamber 1.2 is set on the outer side of the two adjacent and symmetrically arranged profile columns 1. The screws used to connect with the top and bottom crossbeams 6 and 7 are drilled into the corresponding pressure chambers 1.2.
[0036] The mounting slot 1.1 has symmetrically provided limiting flanges 1.1.1 at its opening. These limiting flanges ensure the opening width is less than the cavity width, allowing the mounting slot to secure the connector and prevent detachment from the profile column. The limiting flanges 1.1.1 also have a clearance notch on their outer surface near the opening to allow for clearance at the bends of the side plate retaining edge 2.1 and the rear plate retaining edge 3.2.
[0037] The profile column 1 is also provided with mounting holes 1.5. The mounting holes 1.5 are set on the center line of symmetry and are located on the rib between the mounting groove 1.1 and the pressure chamber 1.2. The mounting holes 1.5 are used to install adjusting legs, thereby adjusting the height and level of the cabinet.
[0038] The top beam 6 is connected to the inner side of the symmetrical center line of the profile column 1, and the outer side of the symmetrical center line of the profile column 1 is exposed. In order to protect the exposed outer side of the profile column 1, a protective plate 14 is provided on the side plate. The protective plate 14 covers the exposed side of the adjacent profile columns in front and behind.
[0039] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.
Claims
1. A quick-connect structure for a filing cabinet, characterized in that: The device includes a profile column, side panels, and a rear panel. The profile column is symmetrically provided with mounting slots on the left and right sides. The side panels are provided with side panel retaining edges corresponding to the mounting slots. The rear panel is provided with an L-shaped folded edge corresponding to the profile column. The L-shaped folded edge includes a rear panel facing edge and a rear panel retaining edge. The rear panel facing edge is attached to the side of the corresponding profile column. The side panel retaining edge and the rear panel retaining edge are inserted together into the mounting slots corresponding to the profile column. Elastic nut blocks are spaced apart in the mounting slots. Bolts extend into the mounting slots to connect the elastic nut blocks.
2. The quick-connect structure for a filing cabinet according to claim 1, characterized in that: The mounting slot has symmetrically provided limiting edges.
3. The quick-connect structure for a filing cabinet according to claim 2, characterized in that: The side plate edge and rear plate edge that extend into the mounting slot are flush with the inner surface of the limiting stop.
4. The quick-connect structure for a filing cabinet according to claim 2, characterized in that: Both the side plate and the rear plate are integrally bent and formed. The outer surface of the end of the limiting edge near the groove is provided with an avoidance notch to avoid the bending corner of the side plate edge and the rear plate edge.
5. The quick-connect structure for a filing cabinet according to claim 1, characterized in that: The mounting slot on one side of the profile column is used to fix the side panel and back panel of one cabinet, and the mounting slot on the other side is used to fix the side panel and back panel of another cabinet.
6. The quick-connect structure for a filing cabinet according to claim 1, characterized in that: The mounting slot has a pressure chamber on the rear side, and the two pressure chambers are symmetrical.
7. The quick-connect structure for a filing cabinet according to claim 1, characterized in that: A spare slot is provided on the front side of the mounting slot, and the spare slot is set on the symmetrical center line of the profile body.
8. The quick-connect structure for a filing cabinet according to claim 7, characterized in that: The spare card slot has weight reduction holes on both the left and right sides.
9. A quick-connect structure for a filing cabinet according to claim 6, characterized in that: The profile column is also provided with mounting holes, which are set on the center line of symmetry and located on the rib between the mounting groove and the pressure-bearing cavity.