Lower door interlocking mechanism of high-voltage switchgear

Abstract

The utility model discloses a lower door interlocking mechanism of a high-voltage switch device, which relates to the technical field of high-voltage switch devices and comprises a cabinet body, a connecting frame is fixedly connected to the outer side of the inner wall of the cabinet body, a knob switch rotatably penetrates through the connecting frame, a first gear ring is fixedly connected to the outer wall of the knob switch, and a second gear ring is fixedly connected to the outer wall of the first gear ring. The outer diameter of the first toothed ring is in meshed connection with a first toothed plate, the other end of the first toothed plate is fixedly connected with a lifting block, the lifting block is slidably connected to the inner wall of the connecting frame, bolts are fixedly connected to the two sides of the bottom end of the lifting block, and through holes are formed in the positions, corresponding to the lower portions of the bolts, of the inner wall of the connecting frame in a penetrating mode. Through structures such as a knob switch, a first toothed ring, a first toothed plate, a lifting block, a plug pin, a through hole, a slot, a rotating shaft, a second toothed ring and the like, the effects of simple structure, convenient operation and relatively flexibility are achieved, and the problems that a traditional interlocking mechanism is complex in structure, relatively troublesome to use and can be blocked are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switch equipment, in particular to a lower door interlocking mechanism of a high-voltage switch equipment. Background Art

[0002] High-voltage switchgear is a device used to control, protect and distribute high-voltage electricity in power systems. They are usually used in transmission lines, substations and industrial power systems to switch, disconnect, isolate and protect circuits to ensure the safe operation and stable power supply of power systems. In order to ensure the personal safety of operating and maintenance personnel and prevent operators from mistakenly entering live compartments, high-voltage switchgear needs to be installed with an interlocking mechanism that meets the "five-prevention" locking requirements;

[0003] At present, the interlocking mechanism on the market is troublesome to use due to its complex structure, and is slow to use, resulting in jams. The complex structure also leads to high parts costs, which is not conducive to cost savings.

[0004] To this end, this case proposes a lower door interlocking mechanism of a high-voltage switchgear to solve the above technical problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a lower door interlocking mechanism of a high-voltage switchgear, which can effectively solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A lower door interlocking mechanism of a high-voltage switchgear comprises a cabinet, a connecting frame is fixedly connected to the outer side of the inner wall of the cabinet, a knob switch is rotatably penetrated on the connecting frame, a first tooth ring is fixedly connected to the outer wall of the knob switch, a first tooth plate is meshingly connected to the outer diameter of the first tooth ring, a lifting block is fixedly connected to the other end of the first tooth plate, the lifting block is slidably connected to the inner wall of the connecting frame, pins are fixedly connected on both sides of the bottom end of the lifting block, through holes are penetrated below the inner wall of the connecting frame corresponding to the pins, a lower door body is rotatably connected to one side of the outer wall of the cabinet, a fixing plate is fixedly connected to the bottom of one end of the lower door body, and slots are provided below the top end of the fixing plate corresponding to the through hole.

[0008] As a further solution of the utility model, one end of the knob switch is fixedly connected to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the inner wall of the cabinet.

[0009] As a further solution of the utility model, a second gear ring is fixedly connected to the outer wall of the rotating shaft near the connecting frame, the outer diameter of the second gear ring is meshingly connected to a second gear plate, the top of the second gear plate is fixedly connected to a connecting plate, and the other end of the connecting plate is slidably connected to the inner wall of the cabinet.

[0010] As a further solution of the utility model, a conductive column is fixedly connected to the top of the connecting plate, and a conductive sleeve is fixedly connected above the inner wall of the cabinet corresponding to the conductive column, and the conductive sleeve and the conductive column are matched in shape.

[0011] As a further solution of the utility model, a grounding wire is fixedly connected to the top of the connecting plate, and the grounding wire is in contact with the ground.

[0012] As a further solution of the utility model, the shapes of the latch, the through hole and the slot match each other, and the fixing plate is arranged below the connecting frame.

[0013] As a further solution of the utility model, a limiting plate is fixedly connected to the bottom of the inner wall of the connection frame corresponding to the lower part of the first gear ring.

[0014] The beneficial effects of the utility model are as follows:

[0015] Through the mutual cooperation of the knob switch, the first gear ring, the first gear plate, the lifting block, the pin, the through hole, the slot, the rotating shaft, the second gear ring, the second gear plate, the connecting plate, the conductive column, the conductive sleeve, the grounding wire and the limit plate, and due to the relatively simple structure, the use is relatively convenient and flexible, there is no jamming, and the parts cost is relatively low, which is conducive to cost saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a lower door interlocking mechanism of a high-voltage switchgear of the utility model;

[0017] Figure 2 This is a cabinet cross-sectional view of a lower door interlocking mechanism of a high-voltage switchgear of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of middle;

[0019] Figure 4 It is a three-dimensional diagram of the rotating shaft structure of the lower door interlocking mechanism of a high-voltage switchgear of the utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of a connection frame of a lower door interlocking mechanism of a high-voltage switchgear of the utility model;

[0021] Figure 6 The utility model is a slot structure diagram of a lower door interlocking mechanism of a high-voltage switchgear.

[0022] In the figure: 1. cabinet; 2. connecting frame; 3. knob switch; 4. first gear ring; 5. first gear plate; 6. lifting block; 7. latch; 8. through hole; 9. lower door body; 10. fixing plate; 11. slot; 12. rotating shaft; 13. second gear ring; 14. connecting plate; 15. conductive column; 16. conductive sleeve; 17. grounding wire; 18. limit plate; 19. second gear plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1-6 As shown, a lower door interlocking mechanism of a high-voltage switchgear comprises a cabinet 1, a connecting frame 2 is fixedly connected to the outer side of the inner wall of the cabinet 1, a knob switch 3 is rotatably penetrated on the connecting frame 2, a first tooth ring 4 is fixedly connected to the outer wall of the knob switch 3, a first tooth plate 5 is meshingly connected to the outer diameter of the first tooth ring 4, a lifting block 6 is fixedly connected to the other end of the first tooth plate 5, the lifting block 6 is slidably connected to the inner wall of the connecting frame 2, pins 7 are fixedly connected on both sides of the bottom end of the lifting block 6, through holes 8 are penetrated below the inner wall of the connecting frame 2 corresponding to the pins 7, a lower door body 9 is rotatably connected to one side of the outer wall of the cabinet 1, a fixing plate 10 is fixedly connected to the bottom of one end of the lower door body 9, and a slot 11 is opened below the top end of the fixing plate 10 corresponding to the through hole 8.

[0025] In this embodiment, one end of the knob switch 3 is fixedly connected to a rotating shaft 12, and the other end of the rotating shaft 12 is rotatably connected to the inner wall of the cabinet 1. The rotating shaft 12 is limited by the cabinet 1 to enable it to rotate stably.

[0026] In this embodiment, a second toothed ring 13 is fixedly connected to the outer wall of the rotating shaft 12 near the connecting frame 2, and a second toothed plate 19 is meshedly connected to the outer diameter of the second toothed ring 13. A connecting plate 14 is fixedly connected to the top of the second toothed plate 19, and the other end of the connecting plate 14 is slidably connected to the inner wall of the cabinet 1;

[0027] Since the second toothed ring 13 and the second toothed plate 19 are meshed and connected, the second toothed plate 19 can be moved up and down, and the second toothed plate 19 moves up and down with the connecting plate 14. Since the connecting plate 14 is L-shaped, it will not be affected by the second toothed ring 13 when moving downward.

[0028] In this embodiment, a conductive column 15 is fixedly connected to the top of the connecting plate 14, and a conductive sleeve 16 is fixedly connected to the upper part of the inner wall of the cabinet 1 corresponding to the conductive column 15, and the conductive sleeve 16 and the conductive column 15 are matched in shape;

[0029] The conductive column 15 and the conductive sleeve 16 are connected together, and the grounding is in a connected state. When the conductive column 15 and the conductive sleeve 16 are separated, the grounding is in a separated state.

[0030] In this embodiment, a grounding wire 17 is fixedly connected to the top of the connecting plate 14, the grounding wire 17 is in contact with the ground, and is connected to the ground through the grounding wire 17. The shapes of the pin 7, the through hole 8 and the slot 11 are matched, and the fixing plate 10 is arranged below the connecting frame 2.

[0031] In this embodiment, a limiting plate 18 is fixedly connected to the bottom of the inner wall of the connecting frame 2 corresponding to the lower part of the first gear ring 4. The limiting plate 18 is stuck in the gap between the teeth on the first gear ring 4, so that the first gear ring 4 can be limited. The limiting plate 18 is elastic and is made of alloy material.

[0032] It should be noted that the utility model is a lower door interlocking mechanism of a high-voltage switchgear. When in use, when it is necessary to close the door, first insert the tool into the knob switch 3. At this time, the rotating tool drives the knob switch 3 to rotate, and the knob switch 3 drives the first gear ring 4 to rotate. Since the first gear ring 4 and the first gear plate 5 are meshed and connected, the first gear plate 5 can be moved downward, and the first gear plate 5 drives the lifting block 6 to move downward, so that the latch 7 passes through the through hole 8 and is inserted into the slot 11. At the same time, the knob switch 3 drives the rotating shaft 12 and the second gear ring 13 to rotate. Since the second gear ring 13 and the second gear plate 19 are meshed and connected, the second gear plate 19 can be moved downward, and the second gear plate 19 drives the connecting plate 14 to move downward, so that the conductive column 15 and the conductive sleeve 16 are separated. At this time, the grounding is in a separated state.

[0033] When it is necessary to open it, it is only necessary to rotate the knob switch 3 in the reverse direction with the first gear ring 4, the rotating shaft 12 and the second gear ring 13 to make the pin 7 leave the range of the slot 11, and at the same time insert the conductive column 15 into the conductive sleeve 16 to make the grounding in a connected state, and limit the first gear ring 4 through the limit plate 18, so that the mechanism is in a limited state. Therefore, during operation, due to the simple structure, it is convenient to use, flexible to use, and will not jam, and the parts cost is low, which is conducive to cost saving.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lower door interlocking mechanism for a high-voltage switchgear, comprising a cabinet (1), characterized in that: A connection frame (2) is fixedly connected to the outer side of the inner wall of the cabinet (1); a knob switch (3) is rotatably penetrated on the connection frame (2); a first tooth ring (4) is fixedly connected to the outer wall of the knob switch (3); a first tooth plate (5) is meshingly connected to the outer diameter of the first tooth ring (4); a lifting block (6) is fixedly connected to the other end of the first tooth plate (5); the lifting block (6) is slidably connected to the inner wall of the connection frame (2); both sides of the bottom end of the lifting block (6) are fixedly connected to latches (7); a through hole (8) is formed on the inner wall of the connection frame (2) below the latches (7); a lower door body (9) is rotatably connected to one side of the outer wall of the cabinet (1); a fixing plate (10) is fixedly connected to the bottom of one end of the lower door body (9); a slot (11) is provided at the top of the fixing plate (10) below the through hole (8).

2. A lower door interlocking mechanism for a high voltage switchgear according to claim 1, characterized in that: One end of the knob switch (3) is fixedly connected to a rotating shaft (12), and the other end of the rotating shaft (12) is rotatably connected to the inner wall of the cabinet (1).

3. A lower door interlocking mechanism for a high voltage switchgear according to claim 2, characterized in that: A second toothed ring (13) is fixedly connected to the outer wall of the rotating shaft (12) near the connecting frame (2); the outer diameter of the second toothed ring (13) is meshingly connected to a second toothed plate (19); the top end of the second toothed plate (19) is fixedly connected to a connecting plate (14); the other end of the connecting plate (14) is slidably connected to the inner wall of the cabinet (1).

4. A lower door interlocking mechanism for a high voltage switchgear according to claim 3, characterized in that: A conductive column (15) is fixedly connected to the top of the connecting plate (14), and a conductive sleeve (16) is fixedly connected to the upper side of the inner wall of the cabinet (1) corresponding to the conductive column (15), wherein the conductive sleeve (16) and the conductive column (15) are matched in shape.

5. A lower door interlocking mechanism for a high voltage switchgear according to claim 4, characterized in that: A grounding wire (17) is fixedly connected to the top of the connection plate (14), and the grounding wire (17) is in contact with the ground.

6. A lower door interlocking mechanism for a high voltage switchgear according to claim 1, characterized in that: The shapes of the latch (7), the through hole (8) and the slot (11) match each other, and the fixing plate (10) is arranged below the connection frame (2).

7. The lower door interlocking mechanism of a high-voltage switchgear according to claim 1, characterized in that: A limiting plate (18) is fixedly connected to the bottom of the inner wall of the connection frame (2) corresponding to the lower side of the first gear ring (4).

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