CN220421261U - Pressure relief structure for ring main unit - Google Patents
Pressure relief structure for ring main unit Download PDFInfo
- Publication number
- CN220421261U CN220421261U CN202321390308.2U CN202321390308U CN220421261U CN 220421261 U CN220421261 U CN 220421261U CN 202321390308 U CN202321390308 U CN 202321390308U CN 220421261 U CN220421261 U CN 220421261U
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- China
- Prior art keywords
- rod
- pressure
- main unit
- pull rod
- ring main
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- 244000309464 bull Species 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 description 5
- 229920001778 nylon Polymers 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model discloses a pressure relief structure for a ring main unit, which relates to the technical field of ring main units and comprises a main unit top plate, wherein a first fixing seat is fixed on the top surface of the main unit top plate, one end of the first fixing seat is rotationally connected with a bent rotating rod through a rotating shaft, the other end of the bent rotating rod is rotationally connected with a pull rod through the rotating shaft, the other end of the pull rod is rotationally connected with a second fixing seat through the rotating shaft, and a pressure relief cover is fixed on the bottom surface of the second fixing seat. According to the utility model, the fixing seat, the bent rotating rod, the pull rod, the second fixing seat, the connecting rod and the spring are arranged, when the air pressure in the air chamber is overlarge, the pressure upwards presses the second fixing seat until the pressure release cover and the cabinet top plate form 90 degrees, the pressure release cover is completely opened, and the locking plate is clamped between the lock catch and the fixing plate at the moment, so that the pressure release cover can be prevented from being influenced by rebound of the pressure release cover to close the pressure release cover.
Description
Technical Field
The utility model relates to the technical field of ring main units, in particular to a pressure relief structure for a ring main unit.
Background
The ring main unit is to connect the power cable or the electrical equipment through metal or nonmetal closed switch equipment, and the ring main unit is used for connecting the ring network circuit, so that the power supply reliability of the circuit is improved, such as ring closing operation of the ring network circuit or load cutting of the ring network circuit.
The air chamber internal arc fault of the ring main unit is an explosion, huge arc energy intensively bursts in a narrow space, shock waves generated by the explosion radiate in all directions at the speed of light, negative pressure is generated when the shock waves reach a blocking part, the pressure is suddenly increased, the damage degree is astonishing, the energy needs to be released, the damage can be reduced, the relatively weak ring can be broken first, the pressure is rapidly released and reduced, and the reason that the pressure release cover plate needs to be arranged on the metal closed switch cabinet is the reason.
The pressure release plate of looped netowrk cabinet air chamber is generally at the cabinet top, and one end metal bolt is fixed, and the another side adopts nylon bolt to fix, and the nylon bolt is broken to pressure when inside electric arc opens the apron, and apron metal bolt fixed one side produces permanent deformation, and the apron is in open position always, and sustained release pressure, but need lift off the apron of being destroyed when repairing, then change new and get the apron, and the operation is comparatively troublesome, and is unfavorable for saving the cost.
Disclosure of Invention
Based on this, the present utility model aims to provide a pressure relief structure for a ring main unit, so as to solve the technical problems set forth in the above background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a pressure release structure for looped netowrk cabinet, includes the cabinet roof, the top surface of cabinet roof is fixed with first fixing base, the one end of first fixing base is rotated through the pivot and is connected with the curved bull stick, the other end of curved bull stick is rotated through the pivot and is connected with the pull rod, the other end of pull rod is rotated through the pivot and is connected with the second fixing base, the bottom surface of second fixing base is fixed with the pressure release lid.
Through adopting above-mentioned technical scheme, when the atmospheric pressure in the air chamber is too big, the pressure upwards breaks the nylon bolt on relief cap one side, the relief cap upwards extrudees the second fixing base this moment, the second fixing base upwards extrudees the pull rod, the bent shape bull stick of pull rod propelling movement rotates left side, simultaneously the connecting rod downwardly extrusion spring, the spring promotes L shape pole and rotates on the second fixing base, the auxiliary rod adjusts the rotation according to the rotation position of L shape pole this moment, support L shape pole, until the relief cap is 90 with the cabinet roof, open the relief cap completely, the locking plate card advances between hasp and the fixed plate this moment, can prevent the relief cap rebound and close the relief cap and influence the pressure release, this kind of mode, the relief cap can not be damaged, it can to finish the maintenance as long as pulling the hasp upwards, it can to close the relief cap, easy operation is convenient, and can save the cost.
The utility model is further arranged that the other end of the first fixing seat is rotationally connected with auxiliary rods through a rotating shaft, and the inner sides of the two groups of auxiliary rods are rotationally connected with L-shaped rods.
Through adopting above-mentioned technical scheme, the auxiliary rod can assist the position of adjusting L shape pole, supports L shape pole, and L shape pole can rotate along with the rotation of pull rod, and auxiliary pull rod drives the rotation of gland jointly.
The utility model is further arranged that one end of the L-shaped rod is rotationally connected with the connecting rod through the rotating shaft, and the other end of the L-shaped rod is rotationally connected with the other end of the second fixing seat through the rotating shaft.
Through adopting above-mentioned technical scheme, L shape pole can rotate the adjustment position on the second fixing base, then through connecting rod and spring pulling pull rod, the rotation of auxiliary pull rod propelling movement curved bull stick.
The utility model is further provided that springs are fixed on the upper parts of the two groups of connecting rods, and the other group of connecting rods are rotationally connected with the pull rod through a rotating shaft.
Through adopting above-mentioned technical scheme, connecting rod and spring can prevent that the relief pressure lid from kick-backing to close after the relief pressure lid rotates 90 degrees, hinder the pressure release.
The utility model is further characterized in that a fixing plate is fixed in the middle of the top surface of the cabinet top plate, a fixing frame is fixed on one side of the fixing plate, and a lock catch is connected to the fixing frame in a rotating mode through a rotating shaft.
Through adopting above-mentioned technical scheme, can carry out the block to the relief pressure lid through the hasp, further prevent that the relief pressure lid from kick-backing to close to better pressure release.
The utility model is further arranged that the pressure release cover is fixedly provided with the locking plate matched with the lock catch, and the L-shaped end face of the locking plate can be clamped between the lock catch and the fixing plate.
Through adopting above-mentioned technical scheme, the locking plate can block into between hasp and the fixed plate to fix the relief cap and lie in cabinet roof vertically position and motionless, convenient pressure release.
The utility model is further characterized in that the bent rotating rod, the pull rod and the L-shaped rod are arranged in a hollow groove, and the pressure release cover is pulled by the pull rod and the L-shaped rod and can rotate by 90 degrees.
Through adopting above-mentioned technical scheme, the rotation of each part can be made things convenient for in the setting of cavity cell type, and the relief pressure mouth can be opened completely to the rotatory 90 degrees of relief pressure lid, helps quick pressure release.
In summary, the utility model has the following advantages:
according to the utility model, the first fixing seat, the bent rotating rod, the pull rod, the second fixing seat, the rotating shaft, the auxiliary rod, the L-shaped rod, the connecting rod and the spring are arranged, when the air pressure in the air chamber is overlarge, the pressure is used for punching the nylon bolt on one side of the pressure relief cover upwards, the pressure relief cover upwards presses the second fixing seat, the second fixing seat upwards presses the pull rod, the pull rod pushes the bent rotating rod to rotate leftwards, the connecting rod downwards presses the spring, the spring pushes the L-shaped rod to rotate on the second fixing seat, the auxiliary rod is adjusted to rotate according to the rotating position of the L-shaped rod at the moment, the L-shaped rod is supported until the pressure relief cover is 90 degrees with the cabinet top plate, at the moment, the lock plate is rotated along with the pressure relief cover, the bottom edge of the lock catch is pushed upwards, and when the lock plate is contacted with the fixing plate, the lock catch is dropped due to self gravity, the lock plate is prevented from bouncing to close the pressure relief cover to affect pressure relief, in this way, the pressure relief cover cannot be damaged, as long as the lock catch is pulled upwards, the pressure relief cover is closed, the operation is simple and convenient, and cost can be saved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the connection of a cabinet top plate and a pressure relief cover of the present utility model;
FIG. 3 is a schematic illustration of the connection of the spring and connecting rod of the present utility model;
FIG. 4 is a schematic view showing the connection of the lock catch and the fixing frame of the present utility model
Fig. 5 is a front view of the locking tab of the present utility model.
In the figure: 1. a cabinet top plate; 2. a relief cap; 3. a first fixing seat; 4. a bent rotating rod; 5. a pull rod; 6. the second fixing seat; 7. a rotating shaft; 8. an auxiliary lever; 9. an L-shaped rod; 10. a connecting rod; 11. a spring; 12. a fixing plate; 13. a fixed frame; 14. locking; 15. and (5) locking plates.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.
The utility model provides a pressure release structure for looped netowrk cabinet, as shown in fig. 1-5, including cabinet roof 1, the top surface of cabinet roof 1 is fixed with first fixing base 3, the one end of first fixing base 3 is connected with curved bull stick 4 through pivot 7 rotation, the other end of curved bull stick 4 is connected with pull rod 5 through pivot 7 rotation, the other end of pull rod 5 is connected with second fixing base 6 through pivot 7 rotation, the bottom surface of second fixing base 6 is fixed with relief cap 2, relief cap 2 upwards extrudees second fixing base 6, second fixing base 6 upwards extrudees pull rod 5, pull rod 5 pushes curved bull stick 4 to left side rotation, simultaneously connecting rod 10 downwardly extrusion spring 11, spring 11 promotes L shape pole 9 to rotate on second fixing base 6, auxiliary rod 8 adjusts the rotation according to the rotation position of L shape pole 9 this moment, support L shape pole 9, until relief cap 2 is 90 with cabinet roof 1, the complete opening relief cap 2.
Referring to fig. 2, the other end of the first fixing base 3 is rotatably connected with an auxiliary rod 8 through a rotating shaft 7, the inner sides of the two groups of auxiliary rods 8 are rotatably connected with an L-shaped rod 9, the auxiliary rod 8 can assist in adjusting the position of the L-shaped rod 9, the L-shaped rod 9 is supported, the L-shaped rod 9 can rotate along with the rotation of the pull rod 5, and the auxiliary pull rod 5 drives the pressure relief cover 2 to rotate together.
Referring to fig. 2, one end of the L-shaped rod 9 is rotatably connected with a connecting rod 10 through a rotating shaft 7, the other end of the L-shaped rod 9 is rotatably connected with the other end of the second fixing seat 6 through the rotating shaft 7, the L-shaped rod 9 can rotate on the second fixing seat 6 to adjust the position, then the connecting rod 10 and the spring 11 pull the pull rod 5, and the auxiliary pull rod 5 pushes the bent rotating rod 4 to rotate.
Referring to fig. 2 and 3, a spring 11 is fixed on the two sets of connecting rods 10, and the other set of connecting rods 10 is rotationally connected with the pull rod 5 through a rotating shaft 7, and the connecting rods 10 and the spring 11 can prevent the pressure relief cover 2 from closing in a rebound manner after the pressure relief cover 2 rotates 90 degrees, thereby blocking pressure relief.
Referring to fig. 4, a fixing plate 12 is fixed in the middle of the top surface of the cabinet top plate 1, a fixing frame 13 is fixed on one side of the fixing plate 12, and a lock catch 14 is rotatably connected to the fixing frame 13 through a rotating shaft 7.
Through adopting above-mentioned technical scheme, can carry out the block to relief pressure lid 2 through hasp 14, further prevent that relief pressure lid 2 from kick-backing to close to better pressure release.
Referring to fig. 4 and 5, a locking plate 15 matched with the lock catch 14 is fixed on the pressure relief cover 2, the L-shaped end face of the locking plate 15 can be clamped between the lock catch 14 and the fixed plate 12, and the locking plate 15 can be clamped between the lock catch 14 and the fixed plate 12, so that the pressure relief cover 2 is fixed at a vertical position of the cabinet top plate 1, and pressure relief is facilitated.
Referring to fig. 2, the bent rotary rod 4, the pull rod 5 and the L-shaped rod 9 are arranged in a hollow groove shape, and the pressure release cover 2 is pulled by the pull rod 5 and the L-shaped rod 9, the rotatable angle is 90 degrees, the hollow groove shape can facilitate the rotation of each part, and the pressure release opening can be completely opened by rotating the pressure release cover 2 by 90 degrees, thereby being beneficial to rapid pressure release.
The working principle of the utility model is as follows: when the air pressure in the air chamber is overlarge, the pressure upwards breaks the nylon bolt on one side of the pressure release cover 2, at the moment, the pressure release cover 2 upwards presses the second fixing seat 6, the second fixing seat 6 upwards presses the pull rod 5, the pull rod 5 pushes the bent rotary rod 4 to rotate leftwards, meanwhile, the connecting rod 10 downwards presses the spring 11, the spring 11 pushes the L-shaped rod 9 to rotate on the second fixing seat 6, at the moment, the auxiliary rod 8 adjusts and rotates according to the rotating position of the L-shaped rod 9 to support the L-shaped rod 9 until the pressure release cover 2 and the cabinet top plate 1 form 90 degrees, the pressure release cover 2 is completely opened, at the moment, the locking plate 15 rotates along with the pressure release cover 2, the bottom edge of the locking plate 14 pushes the locking plate 14 upwards, when the locking plate 15 contacts with the fixing plate 12, the locking plate 15 falls down due to self gravity, the locking plate 15 is fixed, and the pressure release cover 2 can be prevented from being bounced and pressure release.
Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.
Claims (7)
1. A pressure release structure for looped netowrk cabinet, including cabinet roof (1), its characterized in that: the top surface of cabinet roof (1) is fixed with first fixing base (3), the one end of first fixing base (3) is connected with curved bull stick (4) through pivot (7) rotation, the other end of curved bull stick (4) is connected with pull rod (5) through pivot (7) rotation, the other end of pull rod (5) is connected with second fixing base (6) through pivot (7) rotation, the bottom surface of second fixing base (6) is fixed with relief pressure lid (2).
2. The pressure relief structure for a ring main unit as claimed in claim 1, wherein: the other end of the first fixing seat (3) is rotationally connected with an auxiliary rod (8) through a rotating shaft (7), and the inner sides of the two groups of auxiliary rods (8) are rotationally connected with L-shaped rods (9).
3. A pressure relief structure for a ring main unit as claimed in claim 2, wherein: one end of the L-shaped rod (9) is rotationally connected with a connecting rod (10) through a rotating shaft (7), and the other end of the L-shaped rod (9) is rotationally connected with the other end of the second fixing seat (6) through the rotating shaft (7).
4. A pressure relief structure for a ring main unit as claimed in claim 3, wherein: the springs (11) are fixed on the two groups of connecting rods (10), and the other group of connecting rods (10) are rotationally connected with the pull rod (5) through the rotating shaft (7).
5. The pressure relief structure for a ring main unit as claimed in claim 1, wherein: the novel cabinet is characterized in that a fixing plate (12) is fixed in the middle of the top surface of the cabinet top plate (1), a fixing frame (13) is fixed on one side of the fixing plate (12), and a lock catch (14) is connected to the fixing frame (13) in a rotating mode through a rotating shaft (7).
6. The pressure relief structure for a ring main unit as claimed in claim 1, wherein: the pressure release cover (2) is fixedly provided with a locking plate (1/5) matched with the lock catch (14), and the L-shaped end face of the locking plate (1/5) can be clamped between the lock catch (14) and the fixing plate (12).
7. The pressure relief structure for a ring main unit as claimed in claim 1, wherein: the bent rotating rod (4), the pull rod (5) and the L-shaped rod (9) are arranged in a hollow groove mode, and the pressure release cover (2) is pulled by the pull rod (5) and the L-shaped rod (9) to rotate by 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321390308.2U CN220421261U (en) | 2023-06-02 | 2023-06-02 | Pressure relief structure for ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321390308.2U CN220421261U (en) | 2023-06-02 | 2023-06-02 | Pressure relief structure for ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220421261U true CN220421261U (en) | 2024-01-30 |
Family
ID=89645560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321390308.2U Active CN220421261U (en) | 2023-06-02 | 2023-06-02 | Pressure relief structure for ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220421261U (en) |
-
2023
- 2023-06-02 CN CN202321390308.2U patent/CN220421261U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |