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CN-224217411-U - Photovoltaic grid-connected cabinet disconnecting link limiting device

CN224217411UCN 224217411 UCN224217411 UCN 224217411UCN-224217411-U

Abstract

The utility model relates to the technical field of photovoltaic grid-connected cabinets and discloses a photovoltaic grid-connected cabinet disconnecting link limiting device which comprises a fixed seat, wherein one end of the fixed seat is connected with a gear rack through a screw, the inner side of the gear rack is provided with a gear assembly, one end of the gear rack is provided with a movable limiting block, the other end of the gear assembly is provided with an adjusting mechanism, the photovoltaic grid-connected cabinet disconnecting link limiting device pushes a shaft through an adjustable connecting rod pushing the adjusting mechanism according to specification parameters of a disconnecting link to drive an adjusting block to rotate so as to drive a rotating rod connected with the adjusting block to rotate so as to drive a first cone pulley connected with the rotating rod to rotate, so that a movable cone pulley meshed with the first cone pulley rotates, the position of the movable limiting block is adjusted through the movable cone pulley, the movable limiting block is matched with the closing position of the disconnecting link, the closing stroke of the disconnecting link is limited, the displacement deviation of the disconnecting link is effectively limited, and the closing stability is ensured.

Inventors

  • LI PENGHUI
  • WU WEI
  • Hu Dengkun

Assignees

  • 浙江开盛电气有限公司

Dates

Publication Date
20260508
Application Date
20250509

Claims (7)

  1. 1. The utility model provides a photovoltaic grid-connected cabinet switch stop device, its characterized in that, including fixing base (1), the one end screw connection of fixing base (1) has gear rack (11), the inboard of gear rack (11) is provided with gear assembly (12), the one end of gear rack (11) is provided with movable stopper (2), the other end of gear assembly (12) is provided with adjustment mechanism (3).
  2. 2. The grid-connected photovoltaic cabinet disconnecting link limiting device according to claim 1, wherein the gear assembly (12) comprises a movable cone (13), and a first cone (14) is meshed with one end of the movable cone (13).
  3. 3. The photovoltaic grid-connected cabinet disconnecting link limiting device of claim 2 is characterized in that the movable cone pulley (13) is rotatably connected to the inner side of the gear rack (11), and a rotating rod (15) is fixedly connected to the middle of the first cone pulley (14).
  4. 4. The photovoltaic grid-connected cabinet disconnecting link limiting device according to claim 1, wherein the adjusting mechanism (3) comprises an adjusting block (31), a shaft (32) is rotatably connected to the middle of the adjusting block (31), and an adjustable connecting rod (33) is fixedly connected to one end of the shaft (32).
  5. 5. The photovoltaic grid-connected cabinet disconnecting link limiting device of claim 4, wherein one end of a rotating rod (15) at one end of the adjusting block (31) is fixedly connected.
  6. 6. The limit device for the disconnecting link of the photovoltaic grid-connected cabinet is characterized in that one end of the movable limit block (2) is connected with one end of a movable cone pulley (13).
  7. 7. The limit device for the disconnecting link of the photovoltaic grid-connected cabinet is characterized in that one end of the fixing base (1) is fixedly connected with an outer sleeve, and a plurality of threaded holes are formed in the outer portion of the fixing base (1).

Description

Photovoltaic grid-connected cabinet disconnecting link limiting device Technical Field The utility model relates to the technical field of photovoltaic grid-connected cabinets, in particular to a limit device for a disconnecting link of a photovoltaic grid-connected cabinet. Background The photovoltaic grid-connected cabinet is special power equipment and is mainly used for electric energy grid connection in a solar power generation system. The photovoltaic grid-connected system comprises a disconnecting link, a circuit breaker and related control elements, is connected with a generator system and a power grid system, is provided with a complete grid-connected protection device, plays a role in grid connection of the generator, and plays an important role in on-off control of the disconnecting link. However, in the switching-on process of the existing photovoltaic grid-connected cabinet knife switch, the problem that the switching-on position is inaccurate and unstable is often caused, and the electrical connection is poor, heat is generated and even safety accidents are caused, so that the photovoltaic grid-connected cabinet knife switch limiting device is needed. Disclosure of utility model The utility model aims to provide a limit device for a knife switch of a photovoltaic grid-connected cabinet, which aims to solve the problems that the existing knife switch of the photovoltaic grid-connected cabinet provided in the background art often has inaccurate and unstable closing positions in the closing process, and can cause poor electrical connection, heat and even cause safety accidents. In order to solve the technical problems, the technical scheme is that the photovoltaic grid-connected cabinet disconnecting link limiting device comprises a fixed seat, one end of the fixed seat is connected with a gear rack through screws, a gear assembly is arranged on the inner side of the gear rack, a movable limiting block is arranged at one end of the gear rack, and an adjusting mechanism is arranged at the other end of the gear assembly. Preferably, the gear assembly comprises a movable cone pulley, and one end of the movable cone pulley is meshed with the first cone pulley. Preferably, the movable cone pulley is rotatably connected to the inner side of the gear rack, and a rotating rod is fixedly connected to the middle of the first cone pulley. Preferably, the adjusting mechanism comprises an adjusting block, the middle part of the adjusting block is rotationally connected with a shaft, and one end of the shaft is fixedly connected with an adjustable connecting rod. Preferably, one end of the adjusting block is fixedly connected with one end of the rotating rod. Preferably, one end of the movable limiting block is connected with one end of the movable cone pulley. Preferably, one end of the fixing seat is fixedly connected with an outer sleeve, and a plurality of threaded holes are formed in the outer portion of the fixing seat. Compared with the prior art, the utility model has the following beneficial effects: The utility model is composed of a fixed base assembly, a gear transmission system and an adjustable limiting mechanism, wherein the fixed base assembly comprises a fixed seat cast by high-strength alloy and a precise gear frame connected by an anti-loosening screw, a hardened gear assembly is integrated in the gear frame, a two-stage speed reduction design is adopted, a mechanical transmission chain formed by a movable cone pulley, a first cone pulley and a rotating rod is included, the actuating mechanism comprises a movable limiting block, a precise adjusting block, an anti-slip rotating shaft and a multifunctional adjusting mechanism with an adjustable connecting rod, the fixed seat is fixed at a preset installation position in a photovoltaic grid-connected cabinet through bolts to ensure that the fixed seat is tightly attached to the cabinet structure, the loosening phenomenon is avoided, then the adjustable connecting rod of the adjusting mechanism is pushed by pushing the moving shaft to drive the adjusting block to rotate according to the specification parameters of the knife switch, and then the rotating rod connected with the adjusting block is driven to rotate the first cone pulley connected with the rotating rod, so that the movable cone pulley meshed with the first cone pulley rotates, and the movable cone pulley is matched with the closing position of the knife switch through the movable cone pulley to adapt to the closing position of the movable limiting block, thereby limiting the knife switch and the displacement of the knife switch with different specifications is limited, and the closing stability of the knife switch is ensured. Drawings FIG. 1 is a schematic diagram of the overall structure of the present utility model; FIG. 2 is a schematic top view of the present utility model; fig. 3 is a schematic side view of the present utility model. Wherein 1, the fixing seat; 11, a gear rack,