Frame structure of low-voltage switch cabinet

Abstract

The utility model relates to the technical field of switch cabinets, in particular to a frame structure of a low-voltage switch cabinet, which comprises two reinforcing upper cross beam mechanisms arranged oppositely, side bracket mechanisms arranged at the two ends of the two reinforcing upper cross beam mechanisms respectively, and bottom brackets arranged at the bottoms of the two side bracket mechanisms, the reinforcing upper cross beam mechanism comprises an upper large cross beam, reinforcing bending pieces arranged at the two ends of the interior of the upper large cross beam respectively, two hoisting mechanisms arranged on the upper large cross beam and distributed at intervals, and connecting mechanisms arranged on the reinforcing bending pieces and the side support mechanisms; the upper large cross beam and the lower large cross beam are formed by bending aluminum-coated zinc plates, and two ends of the upper large cross beam and the lower large cross beam are bent by double plates; the frame structure has the characteristic of preventing deformation caused by concentrated stress of the upper large cross beam when the cabinet body is hoisted, so that the structural stability and safety of the cabinet body are enhanced, and the cabinet body has enough strength; and the stress strength of the upper large cross beam and the lower large cross beam is improved, and the stability and the safety of the cabinet body are further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, and particularly relates to a frame structure of a low-voltage switch cabinet. Background Art

[0002] When a switch cabinet is produced, generally, a frame structure is first arranged inside, and an iron plate is installed outside the frame structure to form a switch cabinet.

[0003] In the existing frame structure of a low-voltage switch cabinet, the following problems exist:

[0004] 1. During the hoisting operation of the cabinet body, the upper main beam often becomes the main concentration point of the hoisting force. This unbalanced stress mode is extremely likely to cause excessive stress concentration on the upper main beam, and then lead to deformation. This deformation not only directly weakens the overall structural stability of the cabinet body, but also poses a severe threat to the safety of the cabinet body;

[0005] 2. In the production and processing process of the upper and lower main beams, the upper and lower main beams are processed by welding technology, and the design of single-board thickness is adopted on both sides of the upper and lower main beams, which affects the structural strength at both ends of the beams to a certain extent. Content of the Utility Model

[0006] The purpose of the utility model is to provide a frame structure of a low-voltage switch cabinet, which is used to solve the problems in the existing frame structure of a low-voltage switch cabinet that the upper main beam is stressed concentratedly during hoisting, which is easy to cause stress concentration and deformation, weakens the stability of the cabinet body, and seriously threatens its safety; the upper and lower main beams are processed by welding and the design of single-board thickness is adopted on both sides, which affects the structural strength on both sides of the beams.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: A frame structure of a low-voltage switch cabinet includes two oppositely arranged reinforced upper beam mechanisms, side bracket mechanisms respectively arranged at both ends of the two reinforced upper beam mechanisms, and a bottom bracket arranged at the bottom of the two side bracket mechanisms; the reinforced upper beam mechanism includes an upper main beam, reinforced bending parts respectively arranged at both inner ends of the upper main beam, two lifting mechanisms arranged on the upper main beam at intervals, and a connecting mechanism arranged on the reinforced bending parts and the side bracket mechanisms. The upper side of the reinforced bending part abuts against the top side of the inner wall of the upper main beam, and the reinforced bending part is connected to the upper side of the inner wall of the upper main beam through the lifting mechanism. One side of the reinforced bending part is connected to the upper main beam and the side bracket mechanism through the connecting mechanism; the bottom bracket includes two oppositely arranged lower main beams, a connecting bracket arranged between the two lower main beams, and an assembling mechanism arranged between the lower main beams and the side bracket mechanisms and the connecting bracket; both the upper main beam and the lower main beam are formed by bending aluminized zinc plates, and both ends adopt double-board bending.

[0008] Furthermore, the hoisting mechanism includes a lifting ring provided on the upper side of the upper main beam, a galvanized threaded rod provided under the lifting ring, and a nut threadedly engaged with the outer wall of the galvanized threaded rod and abutting against the top side of the inner wall of the reinforcing bending member.

[0009] Furthermore, the side support mechanism includes two C-shaped columns arranged at intervals, a C-shaped side cross beam arranged between the two C-shaped columns, a C-shaped side column arranged under the C-shaped side cross beam, a plurality of rear side beams arranged vertically at intervals between one side of the C-shaped side column and one C-shaped column, and a plurality of front side beams arranged at intervals between the other side of the C-shaped side column and the other C-shaped column.

[0010] Furthermore, a plurality of hemispherical positioning protrusions are provided at both ends of the lower main beam and the upper main beam, and a positioning hole is provided on one side of the C-shaped column for mating with the hemispherical positioning protrusion.

[0011] Furthermore, the connecting mechanism includes a connecting plate arranged in the C-shaped column and two first galvanized bolts arranged at intervals on one side of the inner wall of the reinforcing bending member. One end of the first galvanized bolt penetrates through the upper main beam and is threadedly engaged with the connecting plate.

[0012] Furthermore, second angle plates are provided at the connection between the C-shaped column and the C-shaped lower side beam, and at the connections between the C-shaped side column, the C-shaped column and the C-shaped side cross beam.

[0013] Furthermore, the connecting bracket includes two C-shaped lower side beams arranged at intervals between the two lower main beams, a bottom cross beam arranged between the two C-shaped lower side beams, first angle plates respectively arranged at both ends on the upper side of the bottom cross beam, and non-positioning angle plates respectively arranged at one ends on both sides of the C-shaped side column. The lower side of the non-positioning angle plate is connected to the upper side of the C-shaped lower side beam, and one side of the first angle plate is connected to one side of the C-shaped side column.

[0014] Furthermore, the assembling mechanism includes a large pressing plate arranged in the C-shaped column, a small pressing plate arranged in the C-shaped lower side beam, and a plurality of second galvanized bolts arranged at one end of the inner wall of the lower main beam. One ends of the plurality of second galvanized bolts penetrate through the lower main beam and are respectively threadedly engaged with the large pressing plate and the small pressing plate.

[0015] Furthermore, both the upper main beam and the lower main beam are formed by bending aluminized zinc plates, and both ends are bent with double plates.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The frame structure of the low-voltage switchgear cabinet installs strengthening bending members inside the upper large crossbeam. The strengthening bending members connect the lifting mechanism and the C-shaped columns, dispersing the lifting force borne by the upper large crossbeam during the hoisting process, guiding the concentrated load to the C-shaped columns, and through the setting of the assembly mechanism, after the lower large crossbeam is assembled with the side support mechanism and the connecting bracket, it effectively increases the overall stability and safety of the cabinet body during the hoisting of the wall cabinet. Therefore, this frame structure has the characteristic of preventing the upper large crossbeam from being concentratedly stressed and deformed during the hoisting of the cabinet body, enhancing the structural stability and safety of the cabinet body, and enabling the cabinet body to have sufficient strength;

[0018] Both the upper large crossbeam and the lower large crossbeam are formed by bending aluminized zinc plates, and both ends adopt double-plate bending. When processing the upper large crossbeam and the lower large crossbeam, the welding process is not required. Through the bending method, both sides of the bent upper large crossbeam and lower large crossbeam are of double-plate thickness, improving the stress intensity of the upper large crossbeam and the lower large crossbeam, and further ensuring the stability and safety of the cabinet body. Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the frame structure of the low-voltage switchgear cabinet of the present utility model;

[0020] Figure 2 Of the present utility model Figure 1 Enlarged schematic diagram at position A;

[0021] Figure 3 It is a sectional schematic diagram of the frame structure of the low-voltage switchgear cabinet of the present utility model;

[0022] Figure 4 Of the present utility model Figure 3 Enlarged schematic diagram at position B;

[0023] Figure 5 Of the present utility model Figure 3 Enlarged schematic diagram at position C;

[0024] Figure 6 It is a partial enlarged sectional schematic diagram of the frame structure of the low-voltage switchgear cabinet of the present utility model;

[0025] Figure 7 It is a structural schematic diagram of the lower large crossbeam and the upper large crossbeam of the present utility model;

[0026] Figure 8 It is an unfolded schematic diagram of the lower large crossbeam and the upper large crossbeam of the present utility model;

[0027] Figure 9 It is a structural schematic diagram of the strengthening bending member of the present utility model.

[0028] In the figure: 1. Lower large crossbeam; 2. C-shaped lower side beam; 3. C-shaped column; 4. Upper large crossbeam; 5. Reinforcing bending part; 6. Suspension ring; 7. Galvanized threaded rod; 8. Nut; 9. Connecting plate; 10. First galvanized bolt; 11. C-shaped side column; 12. Bottom crossbeam; 13. Front side beam; 14. Rear side beam; 15. C-shaped side crossbeam; 16. Non-positioning angle plate; 17. First angle plate; 18. Large pressing plate; 19. Small pressing plate; 20. Second galvanized bolt; 21. Second angle plate; 22. Hemispherical positioning protrusion; 23. Positioning hole. Detailed implementation manner

[0029] Please refer to Figures 1-9 , a frame structure of a low-voltage switch cabinet, including two relatively arranged reinforcing upper crossbeam mechanisms, side support mechanisms respectively arranged at both ends of the two reinforcing upper crossbeam mechanisms, and a bottom support arranged at the bottom of the two side support mechanisms; the reinforcing upper crossbeam mechanism includes an upper large crossbeam 4, reinforcing bending parts 5 respectively arranged at both inner ends of the upper large crossbeam 4, two lifting mechanisms arranged on the upper large crossbeam 4 at intervals, and a connecting mechanism arranged on the reinforcing bending parts 5 and the side support mechanism. The upper side of the reinforcing bending part 5 abuts against the top side of the inner wall of the upper large crossbeam 4, and the reinforcing bending part 5 is connected to the upper side of the inner wall of the upper large crossbeam 4 through the lifting mechanism. One side of the reinforcing bending part 5 is connected to the upper large crossbeam 4 and the side support mechanism through the connecting mechanism; the bottom support includes two relatively arranged lower large crossbeams 1, a connecting bracket arranged between the two lower large crossbeams 1, and an assembling mechanism arranged between the lower large crossbeams 1 and the side support mechanism and the connecting bracket; both the upper large crossbeam 4 and the lower large crossbeam 1 are formed by bending aluminized zinc plates, and both ends are bent with double plates; the reinforcing bending part 5 is placed at both inner ends of the upper large crossbeam 4, and the reinforcing bending part 5 is connected to the upper large crossbeam 4 through the lifting mechanism, and the reinforcing bending part 5 is connected to the side support mechanism through the connecting mechanism. Through the installation of the two reinforcing bending parts 5, it helps to disperse the force during the hoisting process of the upper large crossbeam 4. The force received by the upper large crossbeam 4 is dispersed to the C-shaped column 3 of the side support mechanism through the reinforcing bending part 5. And through the setting of the assembling mechanism, after the lower large crossbeam 1 is assembled with the side support mechanism and the connecting bracket, the overall stability and safety of the cabinet during the hoisting process are effectively increased. Thus, the frame structure of the low-voltage switch cabinet has the characteristic of preventing the upper large crossbeam 4 from being concentratedly stressed and deformed during the hoisting of the cabinet body, enhancing the structural stability and safety of the cabinet body, and making the cabinet body have sufficient strength; by using aluminized zinc plates bent into shape for both the upper large crossbeam 4 and the lower large crossbeam 1, and both ends are bent with double plates, there is no need to weld the upper large crossbeam 4 and the lower large crossbeam 1. The two ends of the bent upper large crossbeam 4 and lower large crossbeam 1 are both of double plate thickness, which improves the stress strength of the upper large crossbeam 4 and the lower large crossbeam 1, and further ensures the stability and safety of the cabinet body.

[0030] The hoisting mechanism includes a lifting ring 6 provided on the upper side of the upper main beam 4, a galvanized threaded rod 7 provided on the lower side of the lifting ring 6, and a nut 8 that is threadedly engaged with the outer wall of the galvanized threaded rod 7 and abuts against the top side of the inner wall of the reinforcing bent member 5; when installing the reinforcing bent member 5 and the upper main beam 4, the galvanized threaded rod 7 connected to the lifting ring 6 is sequentially passed through the upper main beam 4 and the reinforcing bent member 5, and a nut 8 is screwed onto one end of the galvanized threaded rod 7 passing through the reinforcing bent member 5 to complete the fixation, thereby facilitating the connection of the lifting ring 6 with the reinforcing bent member 5 and the upper main beam 4, and dispersing the force on the upper main beam 4 during the hoisting of the wall cabinet.

[0031] The side support mechanism includes two C-shaped columns 3 arranged at intervals, a C-shaped side cross beam 15 provided between the two C-shaped columns 3, a C-shaped side column 11 provided on the lower side of the C-shaped side cross beam 15, a plurality of rear side beams 14 arranged vertically at intervals between one side of the C-shaped side column 11 and one C-shaped column 3, and a plurality of front side beams 13 arranged at intervals between the other side of the C-shaped side column 11 and the other C-shaped column 3; a plurality of 25mm modular holes are arranged longitudinally at intervals on the C-shaped column 3 of the low-voltage switchgear cabinet. This design makes the entire frame structure have high versatility and adjustability. At the same time, it is also convenient for electroplating and spraying treatment and the standardized design of parts, improving production efficiency and installation convenience.

[0032] A plurality of hemispherical positioning protrusions 22 are provided at both ends of the lower main beam 1 and the upper main beam 4, and a positioning hole 23 that cooperates with the hemispherical positioning protrusion 22 is provided on one side of the C-shaped column 3; when the two ends of the upper main beam 4 are respectively connected to the C-shaped column 3, a plurality of hemispherical positioning protrusions 22 respectively enter the corresponding plurality of positioning holes 23, which plays a role of positioning and fastening the connection between the C-shaped column 3 and the upper main beam 4, making the installation of the upper main beam 4 and the lower main beam 1 with the C-shaped column 3 convenient and accurately positioned.

[0033] The connecting mechanism includes a connecting plate 9 provided inside the C-shaped column 3 and two first galvanized bolts 10 arranged at intervals on one side of the inner wall of the reinforcing bent member 5. One end of the first galvanized bolt 10 penetrates the upper main beam 4 and is threadedly engaged with the connecting plate 9; during the installation of the reinforcing bent member 5, the connecting plate 9 is placed inside the C-shaped column 3, and two first galvanized bolts 10 are passed through one side of the inner wall of the reinforcing bent member 5 and enter the C-shaped column 3 to be threadedly connected to the connecting plate 9. Thus, while the reinforcing bent member 5 is connected to the lifting ring 6, it is also connected to the C-shaped column 3, facilitating the dispersion of the force during the hoisting of the wall cabinet to the C-shaped column 3.

[0034] At the connection between the C-shaped column 3 and the C-shaped lower side beam 2, and at the connections between the C-shaped side column 11, the C-shaped column 3 and the C-shaped side cross beam 15, second angle plates 21 are provided; through the cooperation of the second angle plates 21 with self-tapping locking screws or 8.8-grade hexagon bolts, it is convenient to fixedly connect the C-shaped side column 11, the C-shaped column 3 and the C-shaped side cross beam 15, and the C-shaped column 3 and the C-shaped lower side beam 2.

[0035] The connecting bracket includes two C-shaped lower side beams 2 arranged between and at intervals between two lower large cross beams 1, a bottom cross beam 12 arranged between the two C-shaped lower side beams 2, first angle plates 17 respectively arranged at both ends of the upper side of the bottom cross beam 12, and non-positioning angle plates 16 respectively arranged at one ends of both sides of the C-shaped side column 11. The lower side of the non-positioning angle plate 16 is connected to the upper side of the C-shaped lower side beam 2, and one side of the first angle plate 17 is connected to one side of the C-shaped side column 11; through the cooperation of the first angle plates 17 with self-tapping locking screws or 8.8-grade hexagon bolts, the bottom cross beam 12 is fixedly connected to the C-shaped side column 11, and through the cooperation of the two non-positioning angle plates 16 with self-tapping locking screws or 8.8-grade hexagon bolts, the C-shaped lower side beam 2 is fixedly connected to the C-shaped side column 11, avoiding the situation of unstable connection, shaking or falling off between the bottom cross beam 12, the C-shaped lower side beam 2 and the C-shaped side column 11 during the hanging cabinet process.

[0036] The assembling mechanism includes a large pressing plate 18 arranged inside the C-shaped column 3, a small pressing plate 19 arranged inside the C-shaped lower side beam 2, and a plurality of second galvanized bolts 20 arranged at one end of the inner wall of the lower large cross beam 1. One ends of the plurality of second galvanized bolts 20 all penetrate through the lower large cross beam 1 and are respectively in threaded cooperation with the large pressing plate 18 and the small pressing plate 19; the large pressing plate 18 is placed inside the C-shaped column 3, the small pressing plate 19 is placed inside the C-shaped lower side beam 2, and then the plurality of second galvanized bolts 20 pass through the lower large cross beam 1 and are respectively in threaded connection with the large pressing plate 18 and the small pressing plate 19 to realize the connection between the lower large cross beam 1 and the C-shaped column 3 and the C-shaped lower side beam 2. When the lower large cross beam 1 is assembled with the C-shaped column 3, it has the characteristics of strong universality of parts, high standardization degree, and flexible and convenient frame assembly.

[0037] Working principle: When assembling the frame structure of this low-voltage switchgear cabinet, multiple hemispherical positioning protrusions 22 on the lower main beam 1 respectively enter the positioning holes 23 on the C-shaped column 3. Place the large pressing plate 18 on the C-shaped column 3 and the small pressing plate 19 on the C-shaped lower side beam 2. Connect the large pressing plate 18, the small pressing plate 19 and the lower main beam 1 together through the second galvanized bolt 20 and tighten the second galvanized bolt 20 respectively; fix the C-shaped side beam 15 between two C-shaped columns 3 through the second angle plate 21, and fix the C-shaped side column 11 between the C-shaped lower side beam 2 and the C-shaped side beam 15 through the non-positioning angle plate 16; fix the bottom beam 12 at the lower ends of two C-shaped side columns 11 through the first angle plate 17; multiple hemispherical positioning protrusions 22 on the upper main beam 4 are respectively placed into the positioning holes 23 on the C-shaped column 3. An enhanced bending member 5 is installed inside the upper main beam 4. Place the connecting plate 9 on the C-shaped column 3 and connect them together through the first galvanized bolt 10. After positioning, tighten the first galvanized bolt 10; the galvanized threaded rods 7 connected to the lifting rings 6 respectively pass through the upper main beam 4 and the enhanced bending member 5, and a tightening nut 8 is screwed into one end of the galvanized threaded rod 7 passing through the enhanced bending member 5; the front side beam 13 and the rear side beam 14 are respectively installed between the C-shaped column 3 and the C-shaped side column 11 to complete the assembly of the frame structure of this low-voltage switchgear cabinet; through the installation of two enhanced bending members 5, it helps to disperse the force during the hanging cabinet process of the upper main beam 4, and disperse the force received by the upper main beam 4 to the C-shaped column 3 of the side support mechanism through the enhanced bending member 5. Thus, this frame structure has the characteristic of preventing the upper main beam 4 from being deformed due to concentrated force during the hoisting of the cabinet body, enhancing the structural stability and safety of the cabinet body, and enabling the cabinet body to have sufficient strength; since both the upper main beam 4 and the lower main beam 1 are formed by bending aluminized zinc plates and both ends adopt double-plate bending, there is no need to weld the upper main beam 4 and the lower main beam 1. The two ends of the bent upper main beam 4 and lower main beam 1 are both of double-plate thickness, which improves the force-bearing strength of the upper main beam 4 and the lower main beam 1 and further ensures the stability and safety of the cabinet body.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A frame structure of a low-voltage switchgear, characterized in that, It includes two oppositely arranged reinforced upper crossbeam mechanisms, side support mechanisms respectively arranged at both ends of the two reinforced upper crossbeam mechanisms, and a bottom support arranged at the bottom of the two side support mechanisms; the reinforced upper crossbeam mechanism includes an upper large crossbeam (4), reinforced bending members (5) respectively arranged at both inner ends of the upper large crossbeam (4), two hoisting mechanisms arranged on the upper large crossbeam (4) at intervals, and a connecting mechanism arranged on the reinforced bending members (5) and the side support mechanism. The upper side of the reinforced bending member (5) abuts against the top side of the inner wall of the upper large crossbeam (4), and the reinforced bending member (5) is connected to the upper side of the inner wall of the upper large crossbeam (4) through the hoisting mechanism. One side of the reinforced bending member (5) is connected to the upper large crossbeam (4) and the side support mechanism through the connecting mechanism; the bottom support includes two oppositely arranged lower large crossbeams (1), a connecting support arranged between the two lower large crossbeams (1), and an assembling mechanism arranged between the lower large crossbeam (1), the side support mechanism and the connecting support; both the upper large crossbeam (4) and the lower large crossbeam (1) are formed by bending aluminized zinc plates, and both ends are formed by double-plate bending.

2. The frame structure of a low-voltage switchgear as described in claim 1, characterized in that, The hoisting mechanism includes a lifting ring (6) arranged on the upper side of the upper large crossbeam (4), a galvanized threaded rod (7) arranged on the lower side of the lifting ring (6), and a nut (8) threadedly engaged with the outer wall of the galvanized threaded rod (7) and abutting against the top side of the inner wall of the reinforced bending member (5).

3. The frame structure of a low-voltage switchgear as claimed in claim 1, characterized in that, The side support mechanism includes two C-shaped columns (3) arranged at intervals, a C-shaped side crossbeam (15) arranged between the two C-shaped columns (3), a C-shaped side column (11) arranged on the lower side of the C-shaped side crossbeam (15), a plurality of rear side beams (14) arranged vertically at intervals between one side of the C-shaped side column (11) and one C-shaped column (3), and a plurality of front side beams (13) arranged at intervals between the other side of the C-shaped side column (11) and the other C-shaped column (3).

4. The frame structure of a low-voltage switchgear as claimed in claim 3, wherein, A plurality of hemispherical positioning protrusions (22) are arranged at both ends of the lower large crossbeam (1) and the upper large crossbeam (4), and a positioning hole (23) that cooperates with the hemispherical positioning protrusion (22) is arranged on one side of the C-shaped column (3).

5. The frame structure of a low-voltage switchgear cabinet according to claim 3, characterized in that, The connecting mechanism includes a connecting plate (9) arranged in the C-shaped column (3), and two first galvanized bolts (10) arranged at intervals on one side of the inner wall of the reinforced bending member (5). One end of the first galvanized bolt (10) penetrates through the upper large crossbeam (4) and is threadedly engaged with the connecting plate (9).

6. The frame structure of a low-voltage switchgear as described in claim 3, wherein, Second angle plates (21) are arranged at the connection between the C-shaped column (3) and the C-shaped lower side beam (2), and at the connections between the C-shaped side column (11), the C-shaped column (3) and the C-shaped side crossbeam (15).

7. The frame structure of a low-voltage switchgear according to claim 3, characterized in that The connecting bracket includes two C-shaped lower side beams (2) arranged between two lower large cross beams (1) at intervals, a bottom cross beam (12) arranged between the two C-shaped lower side beams (2), first angle plates (17) respectively arranged at both ends on the upper side of the bottom cross beam (12), and non-positioning angle plates (16) respectively arranged at one end on both sides of the C-shaped side columns (11). The lower side of the non-positioning angle plate (16) is connected to the upper side of the C-shaped lower side beam (2), and one side of the first angle plate (17) is connected to one side of the C-shaped side column (11).

8. The frame structure of a low-voltage switchgear as claimed in claim 7, wherein, The assembling mechanism includes a large pressing plate (18) arranged in the C-shaped column (3), a small pressing plate (19) arranged in the C-shaped lower side beam (2), and a plurality of second galvanized bolts (20) arranged at one end of the inner wall of the lower large cross beam (1). One ends of the plurality of second galvanized bolts (20) all penetrate through the lower large cross beam (1) and are respectively in threaded cooperation with the large pressing plate (18) and the small pressing plate (19).

Images