Insulation cover plate pressure-resistant buffer structure

Abstract

A pressure-resistant buffer structure of an insulating cover plate comprises a shell plate, a supporting folding edge is bent on the periphery of the shell plate, the supporting folding edge and the shell plate form a cavity with an opening in one side, baffles are arranged in the cavity, a mounting area is defined by the baffles, an insulating plate is arranged in the mounting area, exhaust holes are formed in the baffles, the insulating plate shields the exhaust holes, and the insulating cover plate covers the exhaust holes. A guider is arranged between the back face of the insulating plate and the outer shell plate, a buffer spring is installed on the guider, a partition plate is arranged between the baffle and the supporting folded edge, and air outlet holes are formed in the supporting folded edge. Compared with the prior art, the insulating cover plate pressure-resistant buffer structure has the advantages that when a switch cabinet is short-circuited, generated high-temperature and high-pressure gas can compress the insulating plate, the spring can play a buffer role, after the insulating plate is compressed, the high-temperature and high-pressure gas is discharged from the air holes in the side surface, and the partition plate in the shell can reduce the gas pressure, so that the pressure resistance of the insulating cover plate is improved. And injury to people caused by direct ejection of high-temperature and high-pressure gas is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a pressure-resistant buffer structure of an insulating cover plate. Background Art

[0002] Switch cabinet is a common electrical equipment, and the insulating cover is an important component of the switch cabinet. During the short circuit process, the current of the switch cabinet is very large, which will generate high-temperature and high-pressure gas. Due to the small internal space of the cabinet, the high-temperature and high-pressure gas generated will impact the cover and even cause the cover to deform, affecting the normal operation of the switch cabinet. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an insulating cover plate pressure-resistant buffer structure in view of the deficiencies of the above-mentioned prior art.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A pressure-resistant buffer structure of an insulating cover plate comprises an outer shell plate, a supporting folded edge is bent around the outer shell plate, the supporting folded edge and the outer shell plate form a cavity with an opening on one side, a baffle is arranged in the cavity, an installation area is surrounded by the baffles, an insulating plate is arranged in the installation area, an exhaust hole is opened on the baffle, the insulating plate covers the exhaust hole, a guide is arranged between the back side of the insulating plate and the outer shell plate, a buffer spring is installed on the guide, a partition is arranged between the baffle and the supporting folded edge, and an exhaust hole is opened on the supporting folded edge.

[0006] Furthermore, a sealing ring is provided between the insulating plate and the baffle, and the sealing ring is located below the exhaust hole.

[0007] Furthermore, the guide includes a guide seat connected to the outer shell plate and a guide column connected to the back of the insulating plate. A step hole is processed in the guide seat, a connecting head is provided at the upper end of the guide column and connected to the step hole, a card joint is provided at the upper end of the connecting head, and the card joint is supported on the step surface of the step hole.

[0008] Furthermore, the end of the supporting folded edge is bent to form a connecting edge, and a mounting hole is provided on the connecting edge.

[0009] Furthermore, the buffer spring is arranged between the guide post and the guide seat, and the buffer spring is sleeved on the guide post.

[0010] Compared with the prior art, the utility model has an insulating cover plate pressure-resistant buffer structure. When the switch cabinet is short-circuited, the high-temperature and high-pressure gas generated will compress the insulating plate, and the spring can play a buffering role. After the insulating plate is compressed, the high-temperature and high-pressure gas is discharged from the air holes on the side, and the partition inside the outer shell can reduce the gas pressure to avoid direct spraying of high-temperature and high-pressure gas to cause personal injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 It is a three-dimensional view of the other side of the utility model;

[0013] Figure 3 It is a side view of the utility model;

[0014] Figure 4 yes Figure 3 Sectional view at AA in the middle;

[0015] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0016] Figure 6 yes Figure 5 Sectional view at CC;

[0017] Figure 7 It is a structural schematic diagram of the utility model when the insulating cover is installed;

[0018] Among them, 1. outer shell plate, 2. supporting folded edge, 3. baffle, 4. insulating plate, 5. exhaust hole, 6. sealing ring, 7. guide, 8. buffer spring, 9. partition, 10. exhaust hole, 11. connecting edge, 12. mounting hole, 711, guide seat, 712, guide column, 713, step surface, 714, connector, 715, card connector, 716, cross open groove. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present utility model will be described clearly and completely below.

[0020] like Figure 1 to Figure 5As shown, an insulating cover plate pressure-resistant buffer structure comprises an outer shell plate 1, a support fold 2 is bent around the outer shell plate 1, and the seams between the support folds are welded to fill the gaps, the support fold 2 and the outer shell plate 1 form a cavity with one side opening, a baffle 3 is arranged in the cavity, an installation area is surrounded by the baffles 3, an insulating plate 4 is arranged in the installation area, an exhaust hole 5 is opened on the baffle 3, under normal conditions, the insulating plate 4 covers the exhaust hole 5, and an installation groove is opened around the side of the insulating plate 4, a sealing ring 6 is connected in the installation groove, the sealing ring 6 is arranged between the insulating plate 4 and the baffle 3, and the sealing ring 6 is below the exhaust hole 5 to seal the insulating plate 4 around Closed, a guide 7 is arranged between the back side of the insulating plate 4 and the outer shell plate 1, and a buffer spring 8 is installed on the guide 7. During the short circuit process of the switch cabinet, the high-temperature and high-pressure gas impacts the insulating plate 4, the buffer spring 8 is compressed, the exhaust hole 5 is exposed, and the gas is exhausted outwardly from the exhaust hole 5. A partition 9 is arranged between the baffle 3 and the supporting fold 2, one end of the partition 9 is connected to the supporting fold 2, and the other end is not completely closed between the supporting fold 2. The gas discharged outward from the exhaust hole 5 hits the partition 9 to buffer the decompression and can reduce the gas temperature at the same time to play a heat dissipation role. The supporting fold 2 is provided with an air outlet 10, and the air outlet 10 discharges the high-temperature and high-pressure gas out of the insulating cover plate.

[0021] In this embodiment, the baffle 3 uses two long baffles and two short baffles. The two ends of the two long baffles are connected to the supporting folding edges 2, and the bottom is connected to the outer shell plate 1. The two short baffles are connected between the two long baffles to form an installation area. The baffles 3 can also be connected to each other to form an installation area.

[0022] In this embodiment, the guide 7 includes a guide seat 711 connected to the housing plate 1 and a guide column 712 connected to the back of the insulating plate 4. A step hole is processed in the guide seat 712, and a step surface 713 is provided in the step hole. A connector 714 is provided at the upper end of the guide column 712 and connected to the step hole. A clamping joint 715 is provided at the upper end of the connector 714. The clamping joint 715 adopts a flexible structure, such as Figure 6 As shown, a cross open groove 716 is processed in the middle of the clamping joint 715, so that when installing, the clamping joint 715 is squeezed and compressed and extends into the step hole, so that the clamping joint 715 is supported on the step surface 713 of the step hole.

[0023] The buffer spring 8 is arranged between the guide column 712 and the guide seat 711, and the buffer spring 8 is sleeved on the guide column 712, so that the buffer spring 8 is compressed when the insulating plate 4 is compressed.

[0024] The end of the supporting fold 2 is bent to form a connecting edge 11, and a mounting hole 12 is provided on the connecting edge 11. Figure 7As shown, when the insulating cover is installed, the mounting hole 12 is connected to the switch cabinet by screws, and a sealing gasket 13 is provided at the bottom of the connecting edge 11 to seal with the switch cabinet.

[0025] The present invention is not limited to the described embodiments. Those skilled in the art may make some modifications or changes without departing from the spirit and scope of the present invention, that is, within the scope of disclosure. Therefore, the scope of protection of the present invention shall be subject to the scope defined in the claims.

Claims

1. An insulating cover plate pressure-resistant buffer structure, characterized in that: The utility model comprises an outer shell plate, the periphery of which is bent with a supporting folded edge, the supporting folded edge and the outer shell plate form a cavity with an opening on one side, a baffle is arranged in the cavity, an installation area is surrounded by the baffles, an insulating plate is arranged in the installation area, an exhaust hole is opened on the baffle, the exhaust hole is covered by the insulating plate, a guide is arranged between the back side of the insulating plate and the outer shell plate, a buffer spring is installed on the guide, a partition is arranged between the baffle and the supporting folded edge, and an exhaust hole is opened on the supporting folded edge.

2. The insulating cover plate pressure-resistant buffer structure according to claim 1, characterized in that: A sealing ring is arranged between the insulating plate and the baffle, and the sealing ring is located below the exhaust hole.

3. The insulating cover plate pressure-resistant buffer structure according to claim 1, characterized in that: The guide includes a guide seat connected to the outer shell plate and a guide column connected to the back of the insulating plate. A step hole is processed in the guide seat. A connector is arranged at the upper end of the guide column and connected to the step hole. A clamping joint is arranged at the upper end of the connector, and the clamping joint is supported on the step surface of the step hole.

4. The insulating cover plate pressure-resistant buffer structure according to claim 1, characterized in that: The end of the supporting folded edge is bent to form a connecting edge, and a mounting hole is provided on the connecting edge.

5. The insulating cover plate pressure-resistant buffer structure according to claim 1, characterized in that: The buffer spring is arranged between the guide post and the guide seat, and the buffer spring is sleeved on the guide post.

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