阅读说明：本技术 一种具有隔离装置的开关柜 (Switch cabinet with isolating device ) 是由 徐杰 于 2019-11-15 设计创作，主要内容包括：本发明公开了一种具有隔离装置的开关柜,动触头升降设置在静触头的正下方；若干旋转中心柱左右均匀分布并且旋转设置在柜架的后侧壁上；旋转中心柱的前端固定有驱动齿轮、后端固定有旋转连接板；旋转连接板远离旋转中心柱的一端垂直固定有主隔离板；静触头和动触头位于主隔离板的前后端面所在的竖直平面之间；动触头的左端面上固定有驱动齿条；驱动齿条与驱动齿轮啮合；当动触头处于最下端时,主隔离板水平设置并且位于动触头和静触头之间；当动触头处于最上端时,动触头和静触头抵触并且主隔离板位于动触头和静触头的左侧。(The invention discloses a switch cabinet with an isolating device.A moving contact is arranged right below a fixed contact in a lifting manner; the rotary central columns are uniformly distributed on the left and right and are rotatably arranged on the rear side wall of the cabinet frame; the front end of the rotating central column is fixedly provided with a driving gear, and the rear end of the rotating central column is fixedly provided with a rotating connecting plate; a main isolation plate is vertically fixed at one end of the rotary connecting plate, which is far away from the rotary central column; the static contact and the moving contact are positioned between vertical planes of the front end surface and the rear end surface of the main isolation plate; a driving rack is fixed on the left end surface of the moving contact; the driving rack is meshed with the driving gear; when the moving contact is positioned at the lowest end, the main isolation plate is horizontally arranged and positioned between the moving contact and the fixed contact; when the moving contact is at the top, the moving contact collides with the static contact and the main isolation plate is positioned at the left side of the moving contact and the static contact.)

1. A kind of switch cabinet with isolating device, characterized by that: comprises a cabinet frame (10) with an opening at the right end, a plurality of fixed contacts (12), a plurality of movable contacts (20) and an isolating device (30); a plurality of upper supporting plates (11) which are uniformly distributed on the left and the right are formed on the rear side wall of the cabinet frame (10); the static contact (12) is arranged on the lower end surface of the upper supporting plate; the moving contact (20) is arranged right below the static contact (12) in a lifting way; the isolation device (30) comprises a plurality of rotating central columns (31); the rotary central columns (31) are uniformly distributed on the left and right and are rotatably arranged on the rear side wall of the cabinet frame (10); the rotating central column (31) is arranged on the left side of the moving contact (20); a driving gear (311) is fixed at the front end of the rotating central column (31), and a rotating connecting plate (312) is fixed at the rear end; the rotating connecting plate (312) is positioned at the rear side of the static contact (12) and the movable contact (20); a main isolation plate (32) is vertically fixed at one end of the rotating connecting plate (312) far away from the rotating central column (31); the static contact (12) and the moving contact (20) are positioned between vertical planes of the front end surface and the rear end surface of the main isolation plate (32); a driving rack (21) is fixed on the left end surface of the moving contact (20); the driving rack (21) is meshed with the driving gear (311); when the moving contact (20) is positioned at the lowest end, the main isolation plate (32) is horizontally arranged and positioned between the moving contact (20) and the static contact (12); when the moving contact (20) is positioned at the uppermost end, the moving contact (20) and the static contact (12) are abutted, and the main isolation plate (32) is positioned at the left sides of the moving contact (20) and the static contact (12); the main isolation plate (32) is an insulation plate.

2. A switchgear cabinet with an isolating device according to claim 1, characterized in that: the isolation device (30) also comprises a plurality of auxiliary isolation plates (35); a horizontal connecting plate (33) is arranged on the rear side wall of the cabinet frame (10) in a left-right sliding manner; the auxiliary isolating plate (35) is arranged on the rear side wall of the cabinet frame (10) in a lifting mode and is positioned on the right side of the static contact (12); the horizontal connecting plate (33) is positioned at the rear side of the moving contact (20), and the upper end surface of the horizontal connecting plate is hinged with a plurality of connecting rods (34) which are uniformly distributed left and right; the upper end of the connecting rod (34) is hinged with the rear end of the right end face of the auxiliary isolation plate (35) on the corresponding side; a left supporting seat (13) is formed at the left end of the rear side wall of the cabinet frame (10); the left supporting seat (13) is positioned on the left side of the horizontal connecting plate (33), and a pressure spring (36) is fixed on the right end face of the left supporting seat (13); the right end of the pressure spring (36) is fixed on the left end face of the horizontal connecting plate (33); when the auxiliary isolation plate (35) is positioned at the lowest end, the auxiliary isolation plate (35) and the main isolation plate (32) are positioned on the same horizontal plane, the left end surface and the right end surface of the auxiliary isolation plate (35) are respectively contacted with the adjacent pair of main isolation plates (32), the horizontal connecting plate (33) is positioned at the lowest end, and the right end of the horizontal connecting plate exceeds the cabinet frame (10); when the auxiliary isolation plate (35) is positioned at the uppermost end, the horizontal connecting plate (33) is positioned at the leftmost end, and the right end of the horizontal connecting plate (33) is abutted against the cabinet door of the cabinet frame (10); the auxiliary isolation plate (35) is an insulation plate.

3. A switchgear cabinet with an isolating device according to claim 2, characterized in that: an avoiding groove (350) for avoiding the connecting rod (34) is formed at the rear end of the left end of the auxiliary isolation plate (35).

4. A switchgear cabinet with an isolating device according to claim 2, characterized in that: a plurality of vertical guide grooves (102) which are uniformly distributed on the left and the right are formed on the rear side wall of the cabinet frame (10); a vertical guide rod (103) is fixed between the upper side wall and the lower side wall of the vertical guide groove (102); a vertical guide block matched with the vertical guide groove (102) is formed in the center of the rear end face of the auxiliary isolation plate (35); the vertical guide block is vertically arranged in the vertical guide groove (102) in a sliding manner and sleeved on the vertical guide rod (103).

5. A switchgear cabinet with an isolating device according to claim 2, characterized in that: a horizontal guide groove (100) is formed on the rear side wall of the cabinet frame (10); the right end of the horizontal guide groove (100) is not sealed; a horizontal guide rod (101) is fixed on the left side wall of the horizontal guide groove (100); a horizontal guide block (331) matched with the horizontal guide groove (100) is formed on the rear end surface of the horizontal connecting plate (33); the horizontal guide block (331) is arranged in the horizontal guide groove (100) in a left-right sliding mode and sleeved on the horizontal guide rod (101).

Technical Field

The invention relates to the field of switch cabinets, in particular to a switch cabinet with an isolating device.

Background

As is well known, a load switch or a suspension type disconnecting switch is installed in a conventional medium voltage switchgear, and in order to isolate a static contact and a live part of the load switch or the suspension type disconnecting switch during an overhaul process of the switchgear, so as to reliably isolate a part requiring power failure from the live part, measures generally taken in the prior art are as follows: after the switchgear is opened, the insulation barrier is then inserted manually by the service personnel directly into the switch isolation interruption. However, since this insertion is performed by the equipment maintenance personnel manually touching the insulating partition after the equipment is opened, it is necessary to bring a certain safety hazard to the equipment maintenance personnel.

Therefore, how to ensure the personal safety of the equipment maintenance personnel in the operation process is a problem which needs to be solved urgently in the field.

Disclosure of Invention

The invention aims to provide a switch cabinet with an isolation device, aiming at the technical problem that potential safety hazards exist in the switch cabinet.

The technical scheme for solving the technical problems is as follows: a switch cabinet with an isolating device comprises a cabinet frame with an opening at the right end, a plurality of static contacts, a plurality of moving contacts and the isolating device; a plurality of upper supporting plates which are uniformly distributed on the left and the right are formed on the rear side wall of the cabinet frame; the static contact is arranged on the lower end face of the upper supporting plate; the moving contact is arranged right below the static contact in a lifting manner; the isolation device comprises a plurality of rotating central columns; the rotary central columns are uniformly distributed on the left and right and are rotatably arranged on the rear side wall of the cabinet frame; the rotating central column is arranged on the left side of the moving contact; the front end of the rotating central column is fixedly provided with a driving gear, and the rear end of the rotating central column is fixedly provided with a rotating connecting plate; the rotating connecting plate is positioned at the rear sides of the static contact and the moving contact; a main isolation plate is vertically fixed at one end of the rotary connecting plate, which is far away from the rotary central column; the static contact and the moving contact are positioned between vertical planes of the front end surface and the rear end surface of the main isolation plate; a driving rack is fixed on the left end surface of the moving contact; the driving rack is meshed with the driving gear; when the moving contact is positioned at the lowest end, the main isolation plate is horizontally arranged and positioned between the moving contact and the fixed contact; when the moving contact is positioned at the uppermost end, the moving contact is abutted against the static contact, and the main isolation plate is positioned on the left side of the moving contact and the static contact; the main isolation plate is an insulation plate.

Preferably, the isolation device further comprises a plurality of auxiliary isolation plates; a horizontal connecting plate is arranged on the rear side wall of the cabinet frame in a left-right sliding manner; the auxiliary isolating plate is arranged on the rear side wall of the cabinet frame in a lifting mode and is positioned on the right side of the static contact; the horizontal connecting plate is positioned at the rear side of the moving contact, and a plurality of connecting rods which are uniformly distributed from left to right are hinged on the upper end surface of the horizontal connecting plate; the upper end of the connecting rod is hinged to the rear end of the right end face of the auxiliary isolation plate on the corresponding side; a left supporting seat is formed at the left end of the rear side wall of the cabinet frame; the left supporting seat is positioned on the left side of the horizontal connecting plate, and a pressure spring is fixed on the right end face of the left supporting seat; the right end of the pressure spring is fixed on the left end face of the horizontal connecting plate; when the auxiliary isolation plate is positioned at the lowest end, the auxiliary isolation plate and the main isolation plate are positioned on the same horizontal plane, the left end surface and the right end surface of the auxiliary isolation plate are respectively contacted with the adjacent pair of main isolation plates, the horizontal connecting plate is positioned at the rightmost end, and the right end of the horizontal connecting plate exceeds the cabinet frame; when the auxiliary isolation plate is positioned at the uppermost end, the horizontal connecting plate is positioned at the leftmost end, and the right end of the horizontal connecting plate is abutted against the cabinet door of the cabinet frame; the auxiliary isolation plate is an insulation plate.

Preferably, an avoiding groove for avoiding the connecting rod is formed at the rear end of the left end of the auxiliary isolating plate.

Preferably, the rear side wall of the cabinet frame is formed with a plurality of vertical guide grooves which are uniformly distributed on the left and right; a vertical guide rod is fixed between the upper side wall and the lower side wall of the vertical guide groove; a vertical guide block matched with the vertical guide groove is formed in the center of the rear end face of the auxiliary isolation plate; the vertical guide block is vertically arranged in the vertical guide groove in a sliding manner and sleeved on the vertical guide rod.

Preferably, the rear side wall of the cabinet frame is formed with a horizontal guide groove; the right end of the horizontal guide groove is not sealed; a horizontal guide rod is fixed on the left side wall of the horizontal guide groove; a horizontal guide block matched with the horizontal guide groove is formed on the rear end face of the horizontal connecting plate; the horizontal guide block is arranged in the horizontal guide groove in a left-right sliding manner and sleeved on the horizontal guide rod.

The invention has the beneficial effects that: after the moving contact and the static contact are separated, the main isolation plate is positioned between the moving contact and the static contact to play an isolation role so as to ensure the personal safety in the operation process.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a right-view structural schematic diagram of the present invention;

FIG. 3 is a schematic structural view of the cross section A-A of FIG. 2 according to the present invention;

fig. 4 is a schematic front view of the cabinet door of the present invention when opened.

In the figure, 10, a cabinet frame; 100. a horizontal guide groove; 101. a horizontal guide bar; 102. a vertical guide groove; 103. a vertical guide bar; 11. an upper support plate; 12. static contact; 13. a left support seat; 20. a moving contact; 21. a drive rack; 30. an isolation device; 31. rotating the central column; 311. a drive gear; 312. rotating the connecting plate; 32. a main separator plate; 33. a horizontal connecting plate; 331. a horizontal guide block; 34. a connecting rod; 35. a secondary separator plate; 350. an avoidance groove; 36. and (5) pressing a spring.

Detailed Description

As shown in fig. 1 to 4, a switch cabinet with an isolation device includes a cabinet frame 10 with an opening at the right end, a plurality of static contacts 12, a plurality of movable contacts 20, and an isolation device 30; a plurality of upper supporting plates 11 which are uniformly distributed on the left and the right are formed on the rear side wall of the cabinet frame 10; the static contact 12 is arranged on the lower end surface of the upper support plate; the moving contact 20 is arranged right below the static contact 12 in a lifting way; the isolation device 30 comprises a number of rotating center posts 31; the plurality of rotary central columns 31 are uniformly distributed left and right and are rotatably arranged on the rear side wall of the cabinet frame 10; the rotating central column 31 is arranged at the left side of the movable contact 20; the front end of the rotating central column 31 is fixed with a driving gear 311, and the rear end is fixed with a rotating connecting plate 312; the rotating connecting plate 312 is located at the rear side of the fixed contact 12 and the movable contact 20; a main isolation plate 32 is vertically fixed at one end of the rotating connecting plate 312 far away from the rotating central column 31; the static contact 12 and the movable contact 20 are positioned between the vertical planes of the front end surface and the rear end surface of the main isolation plate 32; a driving rack 21 is fixed on the left end surface of the moving contact 20; the driving rack 21 is meshed with the driving gear 311; when the movable contact 20 is at the lowermost end, the main isolation plate 32 is horizontally arranged and is located between the movable contact 20 and the fixed contact 12; when the moving contact 20 is at the uppermost end, the moving contact 20 collides with the fixed contact 12, and the main isolation plate 32 is located at the left side of the moving contact 20 and the fixed contact 12; the main separator 32 is an insulating plate.

As shown in fig. 1 to 4, the isolation device 30 further includes a plurality of sub isolation plates 35; a horizontal connecting plate 33 is arranged on the rear side wall of the cabinet frame 10 in a left-right sliding manner; the auxiliary isolation plate 35 is arranged on the rear side wall of the cabinet frame 10 in a lifting manner and is positioned on the right side of the static contact 12; the horizontal connecting plate 33 is positioned at the rear side of the moving contact 20, and a plurality of connecting rods 34 which are uniformly distributed from left to right are hinged on the upper end surface; the upper end of the connecting rod 34 is hinged with the rear end of the right end face of the auxiliary isolation plate 35 on the corresponding side; a left supporting seat 13 is formed at the left end of the rear side wall of the cabinet frame 10; the left supporting seat 13 is positioned at the left side of the horizontal connecting plate 33, and a pressure spring 36 is fixed on the right end surface of the left supporting seat 13; the right end of the pressure spring 36 is fixed on the left end face of the horizontal connecting plate 33; when the auxiliary isolation plate 35 is at the lowest end, the auxiliary isolation plate 35 and the main isolation plate 32 are on the same horizontal plane, the left end surface and the right end surface of the auxiliary isolation plate 35 are respectively contacted with the adjacent pair of main isolation plates 32, the horizontal connecting plate 33 is at the rightmost end, and the right end exceeds the cabinet frame 10; when the auxiliary isolation plate 35 is positioned at the uppermost end, the horizontal connecting plate 33 is positioned at the leftmost end and the right end of the horizontal connecting plate 33 is abutted against the cabinet door of the cabinet frame 10; the sub-partition plate 35 is an insulating plate.

As shown in fig. 1, 3 and 4, an escape groove 350 for escaping from the connecting rod 34 is formed at the rear end of the left end of the sub partition plate 35.

As shown in fig. 1, 3 and 4, the rear side wall of the cabinet frame 10 is formed with a plurality of vertical guide grooves 102 uniformly distributed left and right; a vertical guide rod 103 is fixed between the upper and lower side walls of the vertical guide groove 102; a vertical guide block matched with the vertical guide groove 102 is formed in the center of the rear end face of the auxiliary isolation plate 35; the vertical guide block is vertically and slidably arranged in the vertical guide groove 102 and sleeved on the vertical guide rod 103.

As shown in fig. 2 and 4, the rear side wall of the cabinet frame 10 is formed with a horizontal guide groove 100; the right end of the horizontal guide groove 100 is not sealed; a horizontal guide rod 101 is fixed on the left side wall of the horizontal guide groove 100; a horizontal guide block 331 engaged with the horizontal guide groove 100 is formed on the rear end surface of the horizontal connecting plate 33; the horizontal guide block 331 is slidably disposed in the horizontal guide groove 100 and is fitted over the horizontal guide rod 101.

The working principle of the switch cabinet with the isolating device is as follows:

as shown in fig. 1, the cabinet door of the cabinet frame 10 is closed, the horizontal connecting plate 33 is located at the leftmost end, and the right end of the horizontal connecting plate 33 abuts against the cabinet door of the cabinet frame 10; the main isolation plate 32 is located at the left side of the movable contact 20 and the fixed contact 12; when the moving contact 20 is positioned at the uppermost end, the moving contact 20 is abutted against the static contact 12;

when maintenance is needed, the movable contact 20 descends to be separated from the fixed contact 12, the left sides of the movable contact 20 and the fixed contact 12 are gradually changed into horizontal by the main isolation plate 32, and the horizontal state is located between the fixed contact 12 and the movable contact 20, so that isolation is performed, further, when a maintainer opens the cabinet door, the horizontal connecting plate 33 moves rightwards on the pressure spring 36, so that the auxiliary isolation plate 35 descends, finally the auxiliary isolation plate 35 and the main isolation plate 32 are located on the same horizontal plane, the left end face and the right end face of the auxiliary isolation plate 35 are respectively in contact with the adjacent pair of main isolation plates 32, and the isolation effect is further guaranteed.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description herein, since various changes and modifications can be made in the details of the embodiment and the application range according to the spirit of the present invention.