Pressure reducing device of gas-insulated switchgear
By designing and installing structures such as vertical plates, reset partitions and pressure-reducing crossbars in the inflatable cabinet, the automatic reset of the inflatable cabinet after pressure relief is achieved, solving the problem of failure to reset the inflatable cabinet in the existing technology, and extending the equipment lifespan and improve safety.
Patent Information
- Application Number
- CN202323473637.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-20
AI Technical Summary
The pressure relief device of the existing inflatable cabinet cannot be extruded and reset after the inflatable cabinet is deformed, resulting in the inflatable cabinet being easily deformed after long-term use, affecting the safety and service life of the equipment.
A pressure reduction device including mounting vertical plate, reset partition, pressure reduction crossbar, buffer ring, return spring and pressure reduction link is designed. When the air-filled cabinet releases pressure, the reset partition passes through the pressure reduction link and The connecting sleeve pushes the buffer partition, the extrusion return spring shrinks, and after the pressure relief is completed, the buffer ring is reset, thereby extruding the deformation of the inflation cabinet and realizing the reset of the inflation cabinet.
It effectively avoids deformation problems caused by long-term use of the inflatable cabinet, extends the service life of the equipment, and improves operating safety.
Smart Images
Figure CN222169109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of decompression structures, in particular to a decompression device for an inflatable cabinet. Background Art
[0002] The gas-filled cabinet, i.e., indoor AC high-voltage gas-insulated metal-enclosed switchgear, is a new generation of switchgear. The main switch can use either a permanent magnet mechanism vacuum circuit breaker or a spring mechanism vacuum circuit breaker. The entire cabinet adopts a combination of air insulation and sulfur hexafluoride gas compartments. It is compact and expandable and suitable for power distribution automation. The gas-filled cabinet has the characteristics of compact structure, flexible operation, and reliable interlocking. It can provide satisfactory technical solutions for various application fields and different user requirements. It adopts sensing technology and the latest protection relays. When the gas pressure in the gas-filled cabinet exceeds the bearing range of the cabinet or pipeline, it will cause equipment damage, leakage or even explosion. In order to ensure the safety of operators and equipment, it is necessary to regularly relieve pressure to reduce internal pressure.
[0003] Patent No.: CN210517574U discloses a pressure relief device for an inflatable cabinet. The utility model can effectively prevent the cabinet structure of the inflatable cabinet from being damaged. The rigidity and strength of the isolation plate are lower than the side wall of the inflatable cabinet. Therefore, the isolation plate will deform before the side wall of the inflatable cabinet, and a gap will be generated in the contact part between the deformed isolation plate and the cabinet due to the deformation. The gas in the inflatable cabinet will leak out through the gap to reduce the air pressure in the inflatable cabinet, thereby avoiding the high-pressure gas in the inflatable cabinet from damaging the structure of the inflatable cabinet, so as to achieve the purpose of protecting the inflatable cabinet. However, the above patent does not provide a structure for squeezing and resetting the inflatable cabinet when it is deformed, and the inflatable cabinet is prone to deformation under long-term use. Utility Model Content
[0004] The purpose of the utility model is to provide a pressure reducing device for an inflatable cabinet to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a decompression device of an inflatable cabinet, comprising a mounting plate and a reset partition, wherein the mounting plate and the reset partition are connected by a connecting partition, one side of the mounting plate is connected to a plurality of decompression cross bars by a connecting guide rod, two buffer rings are sleeved on the outer side of each of the decompression cross bars, a reset spring is connected between the two buffer rings, one end of each of the buffer rings is fixedly connected to two buffer partitions, a connecting sleeve is hinged between the two buffer partitions, one end of each connecting sleeve is connected to a connecting sleeve through a decompression connecting rod, a buffer vertical rod is inserted and connected at the center of each of the connecting sleeves, and the buffer vertical rods are sleeved on the outer side of each of the decompression cross bars, a reset spring is connected between the two buffer rings, one end of each of the buffer rings is fixedly connected to two buffer partitions, a connecting sleeve is hinged between the two buffer partitions, one end of each of the connecting sleeves is connected to a connecting sleeve through a decompression connecting rod, a buffer vertical rod is inserted and connected at the center of each of the connecting sleeves, and the buffer vertical rods are sleeved on the outer side of each of the decompression cross bars, and the buffer vertical rods are sleeved on the outer side of each of the decompression cross bars, a reset spring is connected between the two buffer rings, one end of each of the buffer rings is fixedly connected to two buffer partitions, a connecting sleeve is hinged between the two buffer partitions, and one end of each of the connecting sleeves is connected to a connecting sleeve through a decompression connecting rod. Both ends of the rod are fixedly connected with connecting partitions, and each of the connecting partitions is fixedly connected to the reset partition in the opposite position. The purpose of this arrangement is: after installation, when the inflatable cabinet begins to depressurize, the bulging and deformation of its surface will squeeze the reset partition, so that the reset partition pushes the connecting partition, and when the connecting partition approaches the pressure-reducing cross bar, the connecting ring and the connecting sleeve rotate accordingly, so that the pressure-reducing connecting rod deviates and pushes the buffer partition, so that the buffer partition pushes the two buffer rings to approach each other, squeezing the reset spring to contract, and when the pressure relief is completed, the reset spring recovers its deformation, which will push the buffer ring to reset, so that the reset partition can be pushed by the pressure-reducing connecting rod and the connecting partition to squeeze the deformed part of the inflatable cabinet, which is convenient for resetting the inflatable cabinet.
[0006] Preferably, one side of the mounting vertical plate is threadedly connected to two mounting baffles via positioning bolts, and one side of each mounting baffle is provided with a positioning slot.
[0007] Preferably, each of the positioning slots is slidably connected to a positioning clamping plate.
[0008] Preferably, one end of each mounting baffle is threadedly connected to a positioning screw.
[0009] Preferably, one end of each positioning screw is in contact with the opposite positioning clamping plate.
[0010] Preferably, the other end of each positioning screw is fixedly connected to an adjusting knob.
[0011] Technical effects and advantages of the utility model:
[0012] (1) After the device is installed, when the inflatable cabinet begins to release pressure, its surface bulges and deforms, which squeezes the reset partition, causing the reset partition to push the connecting partition. When the connecting partition approaches the pressure relief cross bar, the connecting ring and the connecting sleeve rotate accordingly, causing the pressure relief connecting rod to deviate and push the buffer partition, causing the buffer partition to push the two buffer rings closer, squeezing the reset spring to shrink, and when the pressure relief is completed, the reset spring recovers its deformation, which pushes the buffer ring to reset, so that the reset partition can be pushed by the pressure relief connecting rod and the connecting partition to squeeze the deformed part of the inflatable cabinet, which is convenient for resetting the inflatable cabinet.
[0013] (2) The device can bring one end of the reset baffle into contact with the portion of the inflatable cabinet that is prone to bulging and deforming when the inflatable cabinet is depressurized. By rotating the positioning screw, the positioning clamp can be pushed so that the positioning clamp contacts the other side of the inflatable cabinet, thereby completing the positioning between the device and the inflatable cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the connection structure between the connecting guide rod and the connecting partition of the utility model;
[0016] Figure 3 The utility model is a schematic diagram of the connection structure between the mounting baffle and the positioning screw.
[0017] In the figure: 1. Install the vertical plate; 2. Connect the guide rod; 3. Decompression cross bar; 4. Buffer collar; 5. Buffer partition; 6. Connect the sleeve; 7. Decompression connecting rod; 8. Connect the collar; 9. Buffer vertical rod; 10. Connect the partition; 11. Reset spring; 12. Install the baffle; 13. Positioning bolt; 14. Positioning slide; 15. Positioning clamp; 16. Positioning screw; 17. Reset the partition. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] The utility model provides Figure 1-3 A decompression device of an inflatable cabinet shown in the figure comprises a mounting plate 1 and a reset partition 17, wherein the mounting plate 1 and the reset partition 17 are connected via a connecting partition 10, and one side of the mounting plate 1 is connected to a plurality of decompression cross bars 3 via a connecting guide rod 2, and two buffer collars 4 are sleeved on the outer side of each decompression cross bar 3, and a reset spring 11 is connected between the two buffer collars 4, and one end of each buffer collar 4 is fixedly connected to two buffer partitions 5, and a connecting sleeve 6 is hinged between the two buffer partitions 5, and one end of each connecting sleeve 6 is connected to a connecting collar 8 via a decompression connecting rod 7, and a buffer vertical rod 9 is inserted and connected at the center of each connecting collar 8, and both ends of the buffer vertical rod 9 are fixedly connected to a connecting partition 10, and each connecting partition 10 is fixedly connected to the reset partition 17 directly opposite to the position;
[0020] like Figure 1-2The decompression device of the inflatable cabinet shown in the figure has two mounting baffles 12 threadedly connected to one side of the mounting vertical plate 1 through a positioning bolt 13, and a positioning slide groove 14 is opened on one side of each mounting baffle 12, and a positioning clamp 15 is slidably connected to the inside of each positioning slide groove 14.
[0021] like Figure 1-3 A decompression device for an inflatable cabinet is shown, and one end of each mounting baffle 12 is threadedly connected to a positioning screw 16, one end of each positioning screw 16 is in contact with a positioning clamp 15 that is directly opposite to it, and the other end of each positioning screw 16 is fixedly connected to an adjusting knob. Before use, one end of the reset baffle 17 can be brought into contact with a portion of the inflatable cabinet that is prone to swelling and deformation when the inflatable cabinet is depressurized. By rotating the positioning screw 16, the positioning clamp 15 can be pushed so that the positioning clamp 15 is in contact with the other side of the inflatable cabinet, thereby completing the positioning between the device and the inflatable cabinet.
[0022] Working principle of the utility model: before using the device, one end of the reset partition 17 can be brought into contact with the part of the inflatable cabinet that is prone to bulging and deformation when the inflatable cabinet is depressurized, and the positioning screw 16 can be rotated to push the positioning splint 15 so that the positioning splint 15 is in contact with the other side of the inflatable cabinet, thereby completing the positioning between the device and the inflatable cabinet. When the inflatable cabinet begins to depressurize, the swelling and deformation of its surface will squeeze the reset partition 17, so that the reset partition 17 pushes the connecting partition 10, and when the connecting partition 10 is close to the pressure reducing cross bar 3, the connecting ring 8 and the connecting sleeve 6 rotate accordingly, so that the pressure reducing connecting rod 7 is offset and pushes the buffer partition 5, so that the buffer partition 5 pushes the two buffer rings 4 to approach, and the squeeze reset spring 11 contracts. When the pressure relief is completed, the reset spring 11 is deformed and restored, which will push the buffer ring 4 to reset, so that the reset partition 17 can be pushed by the pressure reducing connecting rod 7 and the connecting partition 10 to squeeze the deformed part of the inflatable cabinet, which is convenient for resetting the inflatable cabinet.
[0023] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.
Claims
1. A decompression device for an inflatable cabinet, comprising a mounting plate (1) and a reset baffle (17), characterized in that: The mounting plate (1) and the reset partition (17) are connected via a connecting partition (10); one side of the mounting plate (1) is connected to a plurality of pressure reducing cross bars (3) via a connecting guide rod (2); two buffer rings (4) are sleeved on the outer side of each pressure reducing cross bar (3); a reset spring (11) is connected between the two buffer rings (4); one end of each buffer ring (4) is fixedly connected to two buffer partitions (5); a connecting sleeve (6) is hinged between the two buffer partitions (5); one end of each connecting sleeve (6) is connected to a connecting sleeve (8) via a pressure reducing connecting rod (7); a buffer pole (9) is inserted and connected at the center of each connecting sleeve (8); both ends of the buffer pole (9) are fixedly connected to a connecting partition (10); each connecting partition (10) is fixedly connected to the reset partition (17) directly opposite to it.
2. A decompression device for an inflatable cabinet according to claim 1, characterized in that: One side of the mounting vertical plate (1) is threadedly connected to two mounting baffles (12) via positioning bolts (13), and one side of each mounting baffle (12) is provided with a positioning sliding groove (14).
3. A decompression device for an inflatable cabinet according to claim 2, characterized in that: A positioning clamping plate (15) is slidably connected inside each positioning sliding groove (14).
4. A decompression device for an inflatable cabinet according to claim 3, characterized in that: One end of each mounting baffle (12) is threadedly connected with a positioning screw (16).
5. The decompression device of the inflatable cabinet according to claim 4, characterized in that: One end of each positioning screw (16) is in contact with a positioning clamping plate (15) that is located opposite to it.
6. The decompression device of an inflatable cabinet according to claim 4, characterized in that: The other end of each positioning screw (16) is fixedly connected to an adjusting knob.