Anti-explosion cabinet body locking structure

Abstract

The utility model discloses an explosion-proof cabinet body locking structure, which relates to the field of explosion-proof electric appliances and comprises a door frame, the upper side and the lower side of the outer end of the door frame are fixedly connected with connecting assemblies, the other ends of the connecting assemblies are fixedly connected with a door plate, and the inner side of the door plate is provided with a first locking assembly. Second locking assemblies are arranged on the positions, located on the two sides of the first locking assembly, of the inner side of the door plate correspondingly, the first locking assembly comprises a first locking groove formed in the inner side of the door plate, and a transmission gear is rotationally connected into the first locking groove. By the adoption of the structure, the transmission gear is rotated through the operation panel during use, the two control racks are driven to move under rotation of the transmission gear, the left locking block and the right locking block can be driven to move under movement of the control racks, and the left locking block and the right locking block penetrate through a door plate to be connected with locking grooves in the left side and the right side of a door frame in an inserted mode. Therefore, the preliminary locking effect can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of explosion-proof electrical appliances, and specifically relates to an explosion-proof cabinet locking structure. Background Technology

[0002] Control cabinets, as electrical equipment, are assembled in enclosed or semi-enclosed metal cabinets or panels according to electrical wiring requirements. Their layout should meet the requirements for normal operation of the power system, facilitate maintenance, and not endanger the safety of personnel and surrounding equipment. Explosion-proof control cabinets, also called explosion-proof electrical cabinets, are suitable for flammable and explosive environments. They have a high safety factor, strong operational functions, and stable performance. Explosion-proof products include two types: dI and dIIBT4. dI is suitable for non-mining working faces in coal mines, while dIIBT4 is used in factories and is suitable for explosive gas mixtures of IIA and IIB class T1~T4 groups.

[0003] To ensure the safety of explosion-proof control cabinets, the cabinet body needs to be sealed with a door panel. Most existing explosion-proof control cabinets connect the door panel on one side, which is feasible, but the existing door panel locking structure has poor locking effect. A better locking structure requires multiple processes to lock the door panel, making it particularly inconvenient and cumbersome to fix the door panel during use. Therefore, a quick-locking explosion-proof cabinet locking structure is proposed. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an explosion-proof cabinet locking structure to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An explosion-proof cabinet locking structure includes a door frame. Connecting components are fixedly connected to the upper and lower outer sides of the door frame. A door panel is fixedly connected to the other end of each connecting component. A first locking component is provided on the inner side of the door panel. Second locking components are provided on both sides of the first locking component on the inner side of the door panel. The first locking component includes a first locking groove on the inner side of the door panel. A transmission gear is rotatably connected inside the first locking groove. Control racks are slidably connected to both sides of the transmission gear inside the first locking groove. The control racks mesh with the transmission gear. Left and right locking blocks are fixedly connected to the other end of each control rack. Clamping grooves matching the left and right locking blocks are provided on the left and right sides of the inner side of the door frame. The left and right locking blocks penetrate the door panel and interlock with the clamping grooves.

[0007] As a preferred technical solution, the second locking assembly includes a second locking groove opened on the inner side of the door panel on both sides of the first locking assembly. Locking screws are rotatably connected to both sides of the inner side of the second locking groove. Threaded mounting plates are threaded to the outer surfaces of the locking screws. Upper and lower locking blocks are fixedly connected to the upper ends of the threaded mounting plates. The upper and lower sides of the inner side of the door frame are provided with locking grooves that match the upper and lower locking blocks. The upper and lower locking blocks penetrate the door panel and are inserted into the locking grooves.

[0008] As a preferred technical solution, a connecting rod is rotatably connected to both sides of the inner side of the first locking groove, a driven bevel gear is fixedly connected to the outer surface of the connecting rod, and a driving bevel gear is fixedly connected to the outer side of the transmission gear, with the driving bevel gear and the driven bevel gear meshing with each other.

[0009] As a preferred technical solution, a first bevel gear is fixedly connected to both sides of the outer surface of the connecting rod, a connecting rod is fixedly connected to one end of the locking screw through the first locking groove, and a second bevel gear is fixedly connected to the other end of the connecting rod, with the first bevel gear and the second bevel gear meshing with each other.

[0010] As a preferred technical solution, the lower end of the threaded mounting plate is slidably connected to the interior of the second locking groove, a limiting groove is formed inside the second locking groove, and a limiting slider is fixedly connected to one side of the threaded mounting plate, the limiting slider and the limiting groove being slidably connected to each other.

[0011] As a preferred technical solution, the inner side of the transmission gear is fixedly connected to the door panel through the door panel, the outer surface of the operating panel is provided with a handle groove, the outer ring of the bearing is fixedly connected to the outer side of the operating panel, and the inner ring of the bearing is fixedly connected to a grip.

[0012] As a preferred technical solution, the connecting assembly includes a fixing plate fixedly connected to the outside of the door frame, a connecting post fixedly connected to the upper end of the fixing plate, a connecting plate fixedly connected to the outside of the door panel, and a connecting cylinder fixedly connected to the other end of the connecting plate, wherein the connecting cylinder and the connecting post are inserted into each other.

[0013] In summary, the present invention has the following main advantages:

[0014] First, the present invention, through the first locking component, allows the transmission gear to be rotated via the operating disc during use. The rotation of the transmission gear causes two control racks to move, which in turn causes the left and right locking blocks to move. This allows the left and right locking blocks to pass through the locking grooves on the left and right sides of the door panel and engage with the locking grooves on the left and right sides of the door frame, thereby achieving a preliminary locking effect. Furthermore, the rotation of the transmission gear causes the active bevel gear to rotate, which in turn causes the driven bevel gear to drive the connecting rod to rotate.

[0015] Secondly, this utility model, through the provision of a second locking component, connects the rotating rod to drive the first bevel gear to rotate. The rotation of the first bevel gear causes the second bevel gear to drive the connecting rod to rotate. The other end of the connecting rod is connected to the locking screw, so that the rotation of the locking screw can drive the threaded mounting plate connected to it to move. As a result, the movement of the threaded mounting plate pushes the upper and lower locking blocks on the surface outward, allowing the upper and lower locking blocks to pass through the door panel and engage with the locking grooves on the upper and lower sides inside the door frame. This further fixes the door panel, enabling the structure to achieve multiple locking effects. The interconnection between the structures makes locking the door panel more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the connecting component of this utility model;

[0019] Figure 4 This is a utility model Figure 3 A schematic diagram of the structure viewed from below.

[0020] Reference numerals: 1. Door frame; 2. Connecting assembly; 21. Fixing plate; 22. Connecting post; 23. Connecting plate; 24. Connecting cylinder; 3. Door panel; 4. First locking assembly; 41. First locking groove; 42. Control rack; 43. Transmission gear; 44. Left and right locking blocks; 5. Second locking assembly; 51. Second locking groove; 52. Locking screw; 53. Threaded mounting plate; 54. Upper and lower locking blocks; 6. Driving bevel gear; 7. Driven bevel gear; 8. Connecting rod; 9. First bevel gear; 10. Second bevel gear; 11. Connecting rod; 12. Limiting slider; 13. Limiting groove; 14. Operating panel; 15. Handle groove; 16. Bearing; 17. Grip; 18. Clamping groove. Detailed Implementation

[0021] Example

[0022] refer to Figures 1 to 4This embodiment of an explosion-proof cabinet locking structure includes a door frame 1. Connecting components 2 are fixedly connected to the upper and lower sides of the outer end of the door frame 1. A door panel 3 is fixedly connected to the other end of the connecting components 2. A first locking component 4 is provided on the inner side of the door panel 3. A second locking component 5 is provided on both sides of the first locking component 4 on the inner side of the door panel 3. The first locking component 4 includes a first locking groove 41 provided on the inner side of the door panel 3. A transmission gear 43 is rotatably connected inside the first locking groove 41. A control rack 42 is slidably connected on both sides of the transmission gear 43 inside the first locking groove 41. The control rack 42 and the transmission gear 43 are meshed with each other. A left and right locking block 44 is fixedly connected to the other end of the control rack 42. A locking groove 18 matching the left and right locking blocks 44 is opened on both the left and right sides of the inner side of the door frame 1. The left and right locking blocks 44 penetrate the door panel 3 and are inserted into the locking groove 18.

[0023] refer to Figure 3 and Figure 4 The second locking assembly 5 includes a second locking groove 51 located on both sides of the first locking assembly 4 on the inner side of the door panel 3. Locking screws 52 are rotatably connected to both sides of the inner side of the second locking groove 51. Threaded mounting plates 53 are threadedly connected to the outer surfaces of the locking screws 52. Upper and lower locking blocks 54 are fixedly connected to the upper ends of the threaded mounting plates 53. The upper and lower sides of the inner side of the door frame 1 are provided with locking grooves 18 that match the upper and lower locking blocks 54. The upper and lower locking blocks 54 penetrate the door panel 3 and are inserted into the locking grooves 18. By rotating the locking screws 52, the threaded mounting plates 53 connected to them can be moved, thereby pushing the upper and lower locking blocks 54 outwards. This allows the upper and lower locking blocks 54 to penetrate the door panel 3 and be inserted into the locking grooves 18 on the upper and lower sides of the inner side of the door frame 1, thus further securing the door panel 3.

[0024] refer to Figure 3 and Figure 4 The first locking groove 41 has a connecting rod 8 rotatably connected to both sides inside. The outer surface of the connecting rod 8 is fixedly connected to the driven bevel gear 7. The outer side of the transmission gear 43 is fixedly connected to the driving bevel gear 6. The driving bevel gear 6 and the driven bevel gear 7 are meshed with each other. First, the rotation of the transmission gear 43 drives the driving bevel gear 6 to rotate. The rotation of the driving bevel gear 6 causes the driven bevel gear 7 to drive the connecting rod 8 to rotate.

[0025] refer to Figure 4Both sides of the outer surface of the connecting rod 8 are fixedly connected to the first bevel gear 9. One end of the locking screw 52 passes through the first locking groove 41 and is fixedly connected to the connecting rod 11. The other end of the connecting rod 11 is fixedly connected to the second bevel gear 10. The first bevel gear 9 and the second bevel gear 10 are meshed with each other. The rotation of the connecting rod 8 drives the first bevel gear 9 to rotate. Under the rotation of the first bevel gear 9, the second bevel gear 10 drives the connecting rod 11 to rotate. The other end of the connecting rod 11 is connected to the locking screw 52, ​​so that the rotation of the connecting rod 11 can drive the locking screw 52 to rotate.

[0026] refer to Figure 4 The lower end of the threaded mounting plate 53 is slidably connected to the interior of the second locking groove 51. A limiting groove 13 is provided inside the second locking groove 51. A limiting slider 12 is fixedly connected to one side of the threaded mounting plate 53. The limiting slider 12 and the limiting groove 13 are slidably connected to each other. The limiting groove 13 and the limiting slider 12 can limit the threaded mounting plate 53 during use, thereby preventing the threaded mounting plate 53 from shaking during use.

[0027] refer to Figure 1 The inner side of the transmission gear 43 passes through the door panel 3 and is fixedly connected to the operation disc 14. The outer surface of the operation disc 14 is provided with a handle groove 15. The outer ring of the bearing 16 is fixedly connected to the outer side of the operation disc 14, and the inner ring of the bearing 16 is fixedly connected to the handle 17. By holding the handle 17, the operation disc 14 can be rotated. The rotation of the operation disc 14 will cause the transmission gear 43 fixedly connected to it to rotate. Thus, with the handle 17 and the operation disc 14, it is convenient to rotate the transmission gear 43, and the operation disc 14 can also be rotated through the handle groove 15.

[0028] refer to Figure 1 and Figure 2 The connecting component 2 includes a fixing plate 21 fixedly connected to the outside of the door frame 1. A connecting post 22 is fixedly connected to the upper end of the fixing plate 21. A connecting plate 23 is fixedly connected to the outside of the door panel 3. A connecting sleeve 24 is fixedly connected to the other end of the connecting plate 23. The connecting sleeve 24 and the connecting post 22 are inserted into each other. When installing the door panel 3, the door panel 3 can be lifted to align the connecting sleeve 24 with the connecting post 22, so that the connecting sleeve 24 and the connecting post 22 are inserted into each other, thereby achieving the connection effect after the insertion is completed.

[0029] Operating principle and advantages: First, by lifting the door panel 3, the connecting sleeve 24 is aligned with the connecting post 22, allowing the connecting sleeve 24 to insert into the connecting post 22. This achieves a connection effect immediately after insertion, enabling normal use of the door panel 3 structure. When locking the door panel 3, the operating disc 14 rotates the transmission gear 43. The rotation of the transmission gear 43 drives the two control racks 42 to move, which in turn moves the left and right locking blocks 44. These locking blocks 44 then penetrate the locking grooves on the left and right sides of the door panel 3 and insert into the door frame 1, achieving a preliminary locking effect. Furthermore, the rotation of the transmission gear 43 drives the active bevel gear 6 to rotate, which in turn drives the driven bevel gear 7 to rotate the connecting rod 8. The rotation of the connecting rod 8 then drives the first bevel gear 9 to rotate. The rotation of the first bevel gear 9 causes the second bevel gear 10 to drive the connecting rod 11 to rotate. The other end of the connecting rod 11 is connected to the locking screw 52, ​​so that the rotation of the locking screw 52 can drive the threaded mounting plate 53 connected to it to move. As a result, the movement of the threaded mounting plate 53 pushes the upper and lower locking blocks 54 on the surface outward, so that the upper and lower locking blocks 54 penetrate the locking grooves on the upper and lower sides of the door panel 3 and are inserted into them. This allows for further fixing of the door panel 3, and the structure can achieve multiple locking effects. The interconnection between the structures makes it more convenient to lock the door panel 3. The limiting slide groove 13 and the limiting slider 12 can limit the threaded mounting plate 53 during use, thus preventing the threaded mounting plate 53 from shaking.

Claims

1. A locking structure for an explosion-proof cabinet, characterized in that: The system includes a door frame (1), with connecting components (2) fixedly connected to both the upper and lower outer ends of the door frame (1). A door panel (3) is fixedly connected to the other end of the connecting components (2). A first locking component (4) is provided on the inner side of the door panel (3), and second locking components (5) are provided on both sides of the first locking component (4) on the inner side of the door panel (3). The first locking component (4) includes a first locking groove (41) provided on the inner side of the door panel (3), and a transmission is rotatably connected inside the first locking groove (41). The gear (43) has a control rack (42) slidably connected to both sides of the transmission gear (43) inside the first locking groove (41). The control rack (42) meshes with the transmission gear (43). The other end of the control rack (42) is fixedly connected to a left and right locking block (44). The left and right sides of the door frame (1) are provided with locking grooves (18) that match the left and right locking blocks (44). The left and right locking blocks (44) penetrate the door panel (3) and are inserted into the locking grooves (18).

2. The explosion-proof cabinet locking structure according to claim 1, characterized in that: The second locking assembly (5) includes a second locking groove (51) located on both sides of the first locking assembly (4) on the inner side of the door panel (3). Locking screws (52) are rotatably connected to both sides of the inner side of the second locking groove (51). Threaded mounting plates (53) are threadedly connected to the outer surface of the locking screws (52). Upper and lower locking blocks (54) are fixedly connected to the upper end of the threaded mounting plates (53). The upper and lower sides of the inner side of the door frame (1) are provided with locking grooves (18) that match the upper and lower locking blocks (54). The upper and lower locking blocks (54) penetrate the door panel (3) and are inserted into the locking grooves (18).

3. The explosion-proof cabinet locking structure according to claim 2, characterized in that: The first locking groove (41) has a connecting rod (8) rotatably connected to both sides inside. The outer surface of the connecting rod (8) is fixedly connected to a driven bevel gear (7). The outer side of the transmission gear (43) is fixedly connected to a driving bevel gear (6). The driving bevel gear (6) and the driven bevel gear (7) mesh with each other.

4. The explosion-proof cabinet locking structure according to claim 3, characterized in that: The first bevel gear (9) is fixedly connected to both sides of the outer surface of the connecting rod (8). One end of the locking screw (52) passes through the first locking groove (41) and is fixedly connected to the connecting rod (11). The other end of the connecting rod (11) is fixedly connected to the second bevel gear (10). The first bevel gear (9) and the second bevel gear (10) mesh with each other.

5. The explosion-proof cabinet locking structure according to claim 4, characterized in that: The lower end of the threaded mounting plate (53) is slidably connected to the interior of the second locking groove (51). A limiting slide groove (13) is provided inside the second locking groove (51). A limiting slider (12) is fixedly connected to one side of the threaded mounting plate (53). The limiting slider (12) and the limiting slide groove (13) are slidably connected to each other.

6. The explosion-proof cabinet locking structure according to claim 1, characterized in that: The inner side of the transmission gear (43) passes through the door panel (3) and is fixedly connected to the operation disc (14). The outer surface of the operation disc (14) is provided with a handle groove (15). The outer side of the operation disc (14) is fixedly connected to the outer ring of the bearing (16), and the inner ring of the bearing (16) is fixedly connected to the handle (17).

7. The explosion-proof cabinet locking structure according to claim 1, characterized in that: The connecting assembly (2) includes a fixing plate (21) fixedly connected to the outside of the door frame (1), a connecting post (22) fixedly connected to the upper end of the fixing plate (21), a connecting plate (23) fixedly connected to the outside of the door panel (3), and a connecting tube (24) fixedly connected to the other end of the connecting plate (23). The connecting tube (24) and the connecting post (22) are inserted into each other.

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