CN217983175U - Low-voltage fusing type isolating switch with reliable closing - Google Patents
Low-voltage fusing type isolating switch with reliable closing Download PDFInfo
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- CN217983175U CN217983175U CN202221820323.1U CN202221820323U CN217983175U CN 217983175 U CN217983175 U CN 217983175U CN 202221820323 U CN202221820323 U CN 202221820323U CN 217983175 U CN217983175 U CN 217983175U
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Abstract
The utility model relates to a reliable low pressure fusing isolator closes a floodgate, comprising a base plate, fix two insulated columns on the bottom plate, moving contact and static contact, the static contact is fixed on one of them insulated column, the moving contact passes through the moving contact base and installs on another insulated column, moving contact one end is connected with the moving contact base through first U type splint, second U type splint are adorned admittedly on the static contact, second U type splint have two clamping jaws, the moving contact be close to second U type splint one side and be equipped with two current conducting plates, each clamping jaw cliies respectively and corresponds the current conducting plate, a plurality of anticreep posts are adorned admittedly between two current conducting plates, the anticreep device is adorned admittedly on the moving contact base, the anticreep device has a plurality of buffering subassemblies, the upper and lower both sides of each buffering subassembly all have the buffering conical surface, slide and then make each buffering subassembly along the horizontal direction adaptability to roll back along the buffering conical surface during each anticreep post extrusion buffering subassembly, the buffering subassembly top of lower has the horizontal plane, the combined floodgate impact is little, and reliably close a floodgate.
Description
Technical Field
The utility model relates to an isolator technical field especially relates to a reliable low pressure fuse-type isolator closes a floodgate.
Background
The low-voltage fuse type isolating switch with reliable closing is widely applied to the low-voltage side outgoing line of the rack type transformer due to the advantages of low manufacturing cost, stable operation and convenient maintenance. The common low-voltage fuse-type isolating switch with reliable closing comprises a base, a fixed contact, a movable contact and a fuse link, wherein the fixed contact and the movable contact are arranged on the base; the static contact, the moving contact and the connecting plate are respectively arranged on the insulating column. When the fuse link is fused, the moving contact is detached and replaced by electric power personnel in time, and then the fuse link is installed. Because the disassembly and assembly are generally operated by using a pull rod, the disassembly and assembly structure not only requires tight combination with the moving contact base and the static contact, but also requires the disassembly and assembly structure to facilitate the operation of the pull rod. In the prior art, a scheme of reducing the combination pressure between the movable contact and the fixed contact to reduce the switching impact in the switching process has been provided, and the combination pressure between the movable contact and the fixed contact is increased after the switching is finished, so that the movable contact is easy to directly hit the fixed contact to cause damage although the switching is convenient.
SUMMERY OF THE UTILITY MODEL
For overcoming the technical defect that prior art exists, the utility model provides a reliable low pressure fuse-type isolator closes a floodgate, it is little to close a floodgate and assault, and close a floodgate reliably.
The utility model discloses a technical solution be:
a low-voltage fuse-type isolating switch reliable in switching on comprises a base plate, two insulating columns, a moving contact and a fixed contact, wherein the two insulating columns, the moving contact and the fixed contact are fixed on the base plate, the moving contact is mounted on the other insulating column through a moving contact base, a fuse link is arranged on the moving contact, one end of the moving contact is connected with the moving contact base through a first U-shaped clamping plate, the other end of the moving contact is connected with the fixed contact through a second U-shaped clamping plate and an anti-falling device, the second U-shaped clamping plate is fixedly mounted on the fixed contact and provided with two clamping jaws, two current conducting plates are arranged on one side, close to the second U-shaped clamping plate, of the moving contact, the clamping jaws respectively clamp corresponding current conducting plates, a plurality of anti-falling columns are fixedly mounted between the two current conducting plates, the anti-falling device is fixedly mounted on a moving contact base, the anti-falling device is provided with a plurality of buffering conical surface assemblies, buffering assemblies are arranged on the upper side and the lower side of each buffering assembly, when each buffering column extrudes the buffering assembly, each buffering assembly can slide along a buffering assembly, and accordingly each buffering assembly can adaptively return along the horizontal direction, and the top of the buffering assembly at the lowest position is provided with a horizontal plane.
Preferably, the isolating switch is further provided with an arc extinguishing piece, and the arc extinguishing piece consists of a movable arc extinguishing piece arranged on the movable contact and a static arc extinguishing piece arranged on the static contact.
Preferably, a rotating shaft is further arranged at one end of the moving contact connected with the moving contact seat, and the rotating shaft is hung on a hanging seat on the moving contact seat.
Preferably, the anti-falling device comprises a rear seat plate and a guide plate, one end of each buffer assembly is flexibly mounted on the rear seat plate, each buffer assembly is slidably mounted on the guide plate, and the guide plate and the rear seat plate are fixedly mounted on the movable contact seat.
Preferably, each of the buffer assemblies includes a buffer cone block and a buffer spring, the top of the bottommost buffer cone block has a horizontal plane, and the upper and lower sides of each buffer cone block have buffer conical surfaces.
Preferably, a rubber shock absorption layer is arranged between the guide plate and the movable contact seat.
The utility model has the advantages that:
the static contact is fixed on one of the insulating columns, the moving contact is installed on the other insulating column through a moving contact seat, the moving contact is provided with a fuse link, the moving contact rotates around the moving contact seat to further enable the moving contact and the static contact to be switched on and off, one end of the moving contact is connected with the moving contact seat through a first U-shaped clamping plate to achieve electrical connection between the moving contact and the moving contact seat, the other end of the moving contact is connected with the static contact through a second U-shaped clamping plate, the moving contact is electrically connected with the static contact through the second U-shaped clamping plate, the second U-shaped clamping plate is fixedly installed on the static contact, the second U-shaped clamping plate is provided with two clamping jaws, one side of the moving contact, close to the second U-shaped clamping plate, is provided with two current conducting plates, and each clamping jaw respectively clamps a corresponding current conducting plate;
the moving contact other end passes through the anticreep device and is connected with the static contact, a plurality of anticreep posts are equipped with admittedly between two current conducting plates, the anticreep device is adorned admittedly on the moving contact seat, the anticreep device has a plurality of buffering subassemblies, the upper and lower both sides of each buffering subassembly all have the buffering conical surface, slide along the buffering conical surface and then make each buffering subassembly along the horizontal direction adaptability and roll back when each anticreep post extrudees the buffering subassembly, each anticreep post all need extrude the buffering subassembly and make each buffering subassembly to roll back along the horizontal direction when closing a floodgate and separating a floodgate like this, can avoid moving contact mistake separating brake, further guarantee the reliable electric connection of moving contact and static contact, the buffering subassembly top of minimum has the horizontal plane, not only can utilize each buffering subassembly to absorb the impact force of moving contact when closing a floodgate, and each buffering subassembly can restrict the anticreep post action when separating a floodgate, and then avoid moving contact mistake separating brake.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1.
Fig. 3 is a schematic view of the anti-falling device.
Description of the reference numerals:
1. a base plate;
2. an insulating column;
3. a moving contact; 31. a conductive plate;
4. carrying out static contact;
5. a fuse link;
6. a first U-shaped splint;
7. a movable contact seat; 71. hanging a seat;
8. a second U-shaped splint; 81. a clamping jaw;
9. an anti-drop device; 91. a buffer assembly; 911. a buffer conical surface; 912. a horizontal plane; 913. buffering the conical block; 914. a buffer spring; 92. a rear seat plate; 93. a guide plate; 94. a rubber shock-absorbing layer; 95. anti-drop post.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-3, this embodiment provides a low-voltage fusing type disconnecting switch with reliable closing, which includes a bottom plate 1, two insulating columns 2 fixed on the bottom plate 1, a moving contact 3 and a static contact 4, the static contact 4 is fixed on one of the insulating columns 2, the moving contact 3 is mounted on the other insulating column 2 through a moving contact base 7, the moving contact 3 is provided with a fuse link 5, the moving contact 3 rotates around the moving contact base 7 to open and close the moving contact 3 and the static contact 4, one end of the moving contact 3 is connected with the moving contact base 7 through a first U-shaped clamp plate 6 to achieve electrical connection between the moving contact 3 and the moving contact base 7, the other end of the moving contact 3 is connected with the static contact 4 through a second U-shaped clamp plate 8, the moving contact 3 is electrically connected with the static contact 4 through the second U-shaped clamp plate 8, the second U-shaped clamp plate 8 is mounted on the static contact 4, the second U-shaped clamp plate 8 has two clamping jaws 81, one side of the moving contact 3 close to the second U-shaped clamp plate 8 is provided with two conducting plates 31, and each clamping jaw 81 respectively clamps the corresponding conducting plate 31.
The other end of the moving contact 3 is connected with the static contact 4 through the anti-dropping device 9, a plurality of anti-dropping columns 95 are fixedly arranged between the two conductive plates 31, the anti-dropping device 9 is fixedly arranged on the moving contact seat 7, the anti-dropping device 9 is provided with a plurality of buffer assemblies 91, the upper side and the lower side of each buffer assembly 91 are respectively provided with a buffer conical surface 911, each anti-dropping column 95 slides along the buffer conical surface 911 when extruding the buffer assembly 91 so as to enable each buffer assembly 91 to adaptively return along the horizontal direction, thus each anti-dropping column 95 needs to extrude the buffer assembly 91 when switching on and switching off, each buffer assembly 91 can avoid mistakenly switching off the moving contact 3, the reliable electric connection between the moving contact 3 and the static contact 4 is further ensured, the top of the buffer assembly 91 at the lowest position is provided with a horizontal plane 912, the impact force of the moving contact 3 can be absorbed by each buffer assembly 91 when switching on, and each buffer assembly 91 can limit the action of the anti-dropping column 95 when switching off, and further avoid mistakenly switching off the moving contact 3.
The isolating switch is also provided with an arc extinguishing piece, the arc extinguishing piece consists of a movable arc extinguishing piece arranged on the movable contact 3 and a static arc extinguishing piece arranged on the static contact 4, and the arc extinguishing piece can keep contact when the movable contact 3 is just separated from the static contact 4, so that current can continuously circulate along the arc extinguishing piece; meanwhile, because the contact surface of the arc extinguishing piece is smaller than that of the movable contact 4 and the static contact 4, the contact resistance of the arc extinguishing piece is larger, the time for passing the current is reduced, the generation of electric arcs is effectively reduced, and the effect of protecting the movable contact 4 and the static contact 4 is achieved.
The moving contact 3 is still provided with the pivot with the one end that the moving contact seat 7 is connected, and the pivot articulates the seat 71 that hangs on the moving contact seat 7, when dismantling the moving contact 3 after fuse-link 5 fuses, can directly take off the moving contact 3 from hanging the seat 71, and is very convenient.
The anti-falling device 9 includes a rear seat plate 92 and a guide plate 93, one end of each buffer component 91 is flexibly mounted on the rear seat plate 92, each buffer component 91 includes a buffer conical block 913 and a buffer spring 914, the bottommost buffer conical block 913 has a horizontal plane 912, the upper and lower sides of each buffer conical block 913 have buffer conical surfaces 911, each buffer conical block 913 is slidably mounted on the guide plate 93, the guide plate 93 and the rear seat plate 92 are fixedly mounted on the movable contact seat 7, the anti-falling pillar 95 slides along the buffer conical surface 911 to push each buffer conical block 913 to slide along the guide plate 93, the buffer spring 914 is used for buffering the impact force of the movable contact 3, the horizontal plane 912 is used for blocking the anti-falling pillar 95 to continue downward, and the closing position of the movable contact 3 is accurate.
A rubber shock absorbing layer 94 is provided between the guiding plate 93 and the moving contact base 7 for buffering the impact force of the moving contact 3.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (6)
1. The low-voltage fusing type isolating switch is characterized by comprising a base plate, two insulating columns, a moving contact and a fixed contact, wherein the two insulating columns, the moving contact and the fixed contact are fixed on the base plate, the fixed contact is fixed on one insulating column, the moving contact is installed on the other insulating column through a moving contact seat, a fusing sheet is arranged on the moving contact, one end of the moving contact is connected with the moving contact seat through a first U-shaped clamping plate, the other end of the moving contact is connected with the fixed contact through a second U-shaped clamping plate and an anti-dropping device, the second U-shaped clamping plate is fixedly arranged on the moving contact, the second U-shaped clamping plate is provided with two clamping jaws, two current conducting plates are arranged on one side, close to the second U-shaped clamping plate, of the moving contact, the two current conducting plates respectively clamp the corresponding current conducting plates, a plurality of anti-dropping columns are fixedly arranged between the two current conducting plates, the anti-dropping device is fixedly arranged on the moving contact seat, the anti-dropping device is provided with a plurality of buffering assemblies, buffering conical surfaces are arranged on the upper side and the lower sides and the upper sides and the lower sides of the buffering assemblies, the buffering conical surfaces slide along the buffering conical surfaces when the anti-dropping columns extrude the buffering assemblies, the buffering assemblies enable the buffering assemblies to adaptively return the buffering assemblies along the horizontal directions of the buffering assemblies, and the tops of the buffering assemblies at the lowest buffering assemblies are provided with horizontal planes.
2. The low-voltage fusing type isolating switch with reliable closing according to claim 1 is characterized in that the isolating switch is further provided with an arc extinguishing piece, and the arc extinguishing piece is composed of a movable arc extinguishing piece arranged on the movable contact and a static arc extinguishing piece arranged on the static contact.
3. The low-voltage fusing type isolating switch with reliable closing as claimed in claim 1, wherein a rotating shaft is further disposed at one end of the moving contact connected to the moving contact base, and the rotating shaft is hung on a hanging base on the moving contact base.
4. The low-voltage fusing type disconnecting switch with reliable closing according to claim 1, wherein the anti-dropping device comprises a rear seat plate and a guide plate, one end of each buffering component is flexibly installed on the rear seat plate, each buffering component is slidably installed on the guide plate, and the guide plate and the rear seat plate are both fixedly installed on the movable contact seat.
5. The low-voltage fusing type disconnecting switch with reliable closing according to claim 1, wherein each buffering assembly comprises a buffering conical block and a buffering spring, the top of the bottommost buffering conical block is provided with a horizontal plane, and the upper side and the lower side of each buffering conical block are provided with buffering conical surfaces.
6. The low-voltage fusing type isolating switch reliable in closing according to claim 4, wherein a rubber shock absorption layer is arranged between the guide plate and the movable contact base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221820323.1U CN217983175U (en) | 2022-07-15 | 2022-07-15 | Low-voltage fusing type isolating switch with reliable closing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221820323.1U CN217983175U (en) | 2022-07-15 | 2022-07-15 | Low-voltage fusing type isolating switch with reliable closing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217983175U true CN217983175U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221820323.1U Active CN217983175U (en) | 2022-07-15 | 2022-07-15 | Low-voltage fusing type isolating switch with reliable closing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217983175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707135A (en) * | 2023-06-07 | 2023-09-05 | 国网山东省电力公司临沭县供电公司 | One-address multi-user electricity automatic alarm device |
-
2022
- 2022-07-15 CN CN202221820323.1U patent/CN217983175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116707135A (en) * | 2023-06-07 | 2023-09-05 | 国网山东省电力公司临沭县供电公司 | One-address multi-user electricity automatic alarm device |
| CN116707135B (en) * | 2023-06-07 | 2024-04-19 | 国网山东省电力公司临沭县供电公司 | One-address multi-user electricity automatic alarm device |
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