CN214100549U - A unseal device for GIS apron - Google Patents

Abstract

The utility model discloses an unsealing device for a GIS cover plate, which comprises a U-shaped ring, wherein the open end of the U-shaped ring is connected with a piercing bolt in a threaded manner, and the piercing bolt closes the open end of the U-shaped ring; the closed end of the U-shaped ring is in threaded connection with an unsealing bolt, and one end of the unsealing bolt is rotatably connected with an unsealing pointed cone; the unsealing pointed cone is arranged in the U-shaped ring; the sealing device is characterized by further comprising a bearing, wherein an annular groove is formed in one end, close to the through bolt, of the unsealing bolt, and the bearing is sleeved in the groove; one end of the unsealing pointed cone is a tool bit, the other end of the unsealing pointed cone is a hollow cylindrical sleeve, one end of the unsealing bolt, which is provided with a bearing, is inserted into the sleeve and is contacted with the bottom of the sleeve, and the sleeve is fixedly connected with the outer ring of the bearing; the U-shaped ring and the cutter head are externally coated with an insulating protective rubber sleeve. The utility model discloses a technological effect lies in, can be used for opening of GIS apron to seal.

Description

A unseal device for GIS apron

Technical Field

The utility model belongs to the technical field of the electric power construction tool, specifically speaking relates to an unseal device for GIS apron.

Background

In recent years, sulfur hexafluoride enclosed switchgear (GIS) has been widely used in substations in various voltage class ranges due to its advantages of small floor space, convenience in maintenance, and the like. Because the gas recovery processing is carried out before the sulfur hexafluoride closed equipment is overhauled, some GIS cover plates are horizontally arranged, and some GIS cover plates are vertically arranged, namely sulfur hexafluoride insulating gas in the equipment is completely pumped out and reaches a slight negative pressure state of 0.1MPa, the force used by an operator is not well mastered, and once the operation is improper, the equipment is easily damaged, and even the operator is injured by a crashing object.

The technical scheme of the CN201720987950.7 patent adopted at present solves the problems of the special GIS cover plate unsealing handling tool in the construction, but finds that a fixing bolt between an unsealing pointed cone and an unsealing bolt is a main stressed part in the use process, the thread of the fixing bolt is easily damaged by long-term lateral pressure, the dismounting is difficult, and the dismounting, the replacing and the maintenance are inconvenient; during installation, the screwing length needs to be controlled to prevent unsmooth rotation caused by the fact that the screwing length is abutted to the unsealing bolt, so that construction is laborious; on the other hand, the rigid contact with the GIS apron easily causes the surface damage of GIS apron, influences pleasing to the eye and can increase the work load that the maintainer maintained.

Therefore, there is a need for an improved unsealing device for GIS covers.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an unsealing device for a GIS cover plate.

According to one aspect of the utility model, the utility model discloses an unsealing device for a GIS cover plate, which comprises a U-shaped ring, wherein the open end of the U-shaped ring is connected with a piercing bolt through threads, and the piercing bolt closes the open end of the U-shaped ring; the closed end of the U-shaped ring is in threaded connection with an unsealing bolt, and one end of the unsealing bolt is rotatably connected with an unsealing pointed cone; the unsealing pointed cone is arranged in the U-shaped ring; the sealing device is characterized by further comprising a bearing, wherein an annular groove is formed in one end, close to the through bolt, of the unsealing bolt, and the bearing is sleeved in the groove and is not higher than the inner diameter surface of the through bolt; the unsealing pointed cone comprises a cutter head at one end and a hollow cylindrical sleeve at the other end, one end of the unsealing bolt provided with a bearing is inserted into the sleeve and is contacted with the bottom of the sleeve, and the sleeve is fixedly connected with the outer ring of the bearing; the U-shaped ring and the cutter head are externally coated with an insulating protective rubber sleeve.

Optionally, the bearing further comprises a fixing bolt, a plurality of first threaded holes are symmetrically formed in the sleeve, the fixing bolt is in threaded connection with the first threaded holes in a one-to-one correspondence mode, and the fixing bolt abuts against the outer ring of the bearing.

Optionally, the unsealing bolt comprises a body and a cap, the bearing being disposed between the body and the cap.

Optionally, one end of the main body is provided with a connecting hole, the bearing sleeve is arranged on the connecting hole, and one end of the cap body is rotatably connected in the connecting hole through a clamp spring.

Optionally, the bearing is a deep groove ball bearing.

Optionally, two sides of the open end of the U-shaped ring are respectively provided with a second threaded hole, and the piercing bolt is connected with the second threaded holes in a matched manner.

Optionally, a third threaded hole is formed in the closed end of the U-shaped ring, and the unsealing bolt is connected with the third threaded hole in a matched manner.

The utility model discloses a technological effect lies in, can be used for opening of GIS apron and the reliability of structure improves greatly, can also reduce the surface damage to the apron.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic structural view of the unsealing device for the GIS cover plate of the present invention;

FIG. 2 is a view showing the combination of the unsealing bolt and the unsealing awl of the present invention;

fig. 3 is the utility model discloses a structural schematic of the U type ring that is used for the device that unseals of GIS apron.

In the figure, 1, a U-shaped ring, 11, an open end, 12, a closed end, 2, a piercing bolt, 3, an unsealing bolt, 31 a bearing, 32 a main body, 33 a cap body, 34 a connecting hole, 35 a snap spring, 4, an unsealing pointed cone, 41, a cutter head, 42, a sleeve, 5, a first threaded hole, 6, a groove, 7, a fixing bolt, 8, a second threaded hole, 9, a third threaded hole and 10 insulating protection rubber sleeves.

Detailed Description

The following embodiments will be described in detail with reference to the accompanying drawings, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

The utility model discloses an unseal device for GIS apron, refer to fig. 1 and fig. 3, including U type ring 1, U type ring 1's size can be selected according to GIS apron thickness to reserve certain margin.

The open end 11 of the U-shaped ring 1 is connected with a feed-through bolt 2, and the feed-through bolt 2 can close the open end 11 of the U-shaped ring 1. Dismantle a connecting bolt of flange and GIS apron earlier when using, with U type ring 1 cover the position after dismantling the bolt, use and wear open end 11 that bolt 2 passed flange, GIS apron and U type ring 1, can prevent to make GIS apron accident drop through prizing after dismantling the connecting bolt of flange and GIS apron completely.

An unsealing bolt 3 is connected to the closed end 12 of the U-shaped ring 1 in a threaded manner, and an unsealing pointed cone 4 is rotatably connected to one end of the unsealing bolt 3; unseal sharp awl 4 and set up in U type ring 1, unseal the one end of sharp awl 4 and be tool bit 41, tool bit 41 orientation the open end 11 of U type ring 1, unseal bolt 3 and can drive tool bit 41 is to being close to and keeping away from the direction of open end 11 removes, and tool bit 41 is flat sharp awl, is used for separating GIS apron and flange.

An annular groove 6 is formed in one end, close to the through bolt 2, of the unsealing bolt 3, and a bearing 31 sleeved in the groove is arranged on the unsealing bolt 3. Further, the bearing 31 may be a deep groove ball bearing. For example, the unsealing bolt 3 includes a main body 32 and a cap body 33, the bearing 31 is disposed between the main body 32 and the cap body 33, the main body 32 and the cap body 33 are detachably disposed, one end of the main body 32 is provided with a connecting hole 34, the bearing 31 is sleeved outside the connecting hole 34, and one end of the cap body 33 is rotatably connected in the connecting hole 34 through a snap spring 35; in some other embodiments, the body 32 and the cap 33 may be screwed, which is not limited in the present application.

The other end of the unsealing pointed cone 4 is a hollow cylindrical sleeve 42, one end of the unsealing bolt 3 provided with the bearing 31 is inserted into the sleeve 42 to be contacted with the bottom of the sleeve 42, and the sleeve 42 is fixedly connected with the outer ring of the bearing 31. The unsealing bolt 3 contacts with the bottom of the sleeve 42, so that the unsealing bolt 3 is opposite to the unsealing pointed cone 4 and drives the unsealing pointed cone 4 to move linearly in the direction close to the opening end 11, the axial acting force of the unsealing bolt 3 can directly act on the unsealing pointed cone 4, the axial acting force received by the sleeve 42 and the outer ring fixed connection part of the bearing 31 is reduced, the reliability of the unsealing pointed cone 4 and the unsealing bolt 3 in fixed connection is maintained, the friction force can be effectively reduced by the arrangement of the bearing 31, the rotation is smoother, and the operation is relatively labor-saving.

Further, when the cap body 33 is rotatably connected with the main body 32 through the snap spring, the resistance caused by direct friction when the cap body 33 is in over-tight contact with the bottom of the sleeve 42 can be reduced, the partial acting force is dispersed by the snap spring structure, the contact area is relatively smaller, the friction force is relatively smaller, and the operation is relatively more labor-saving.

At least U type ring 1 with the insulating protection gum cover that covers outward on tool bit 41 makes this application with the indirect rigid connection in direct contact atress position of GIS apron and flange to the reduction causes the condition of surperficial fish tail, reduces the antirust work load of mopping again, guarantees the aesthetic property of equipment.

In some other embodiments, referring to fig. 1 to 3, the sealing device further includes a fixing bolt 7, the sleeve 42 is symmetrically provided with a plurality of first threaded holes 5, the fixing bolt 7 is in one-to-one threaded connection with the first threaded holes 5, and the fixing bolt 7 abuts against the outer ring of the bearing 31, so that the sealing opening pointed cone 4 can be fixedly connected with the outer ring of the bearing 31 by using the friction force of the contact surface of the symmetrical fixing bolt 7, and the sealing opening pointed cone 4 is convenient to detach for replacement and maintenance.

In some other embodiments, the outer ring of the bearing 31 is not higher than the inner diameter surface of the unsealing bolt 3, so as to facilitate the disassembly of the unsealing bolt 3 and the U-shaped ring 1 for maintenance. Further, the outer diameter of the cap body 33 is not larger than the inner diameter of the unsealing bolt 3, but larger than the inner diameter of the bearing 31. Further, the outer ring of the bearing 31, the outer diameter of the cap 33, and the inner diameter of the unsealing bolt 3 may be of equal diameter. Of course, it can be understood by those skilled in the art that due to the detachable design of the main body 32 and the cap body 33, when the outer ring of the bearing 31 or/and the outer diameter of the cap body 33 is larger than the inner diameter of the unsealing bolt 3, the aim of detaching and separating the unsealing bolt 3 and the U-shaped ring 1 can also be achieved by first detaching the main body 32 and the cap body 33, which is inconvenient and inconvenient for the modification and utilization of the existing device, and therefore, this technical feature does not constitute a limitation to this application.

Optionally, as shown in fig. 3, second threaded holes 8 are respectively formed in two sides of the open end 11, internal threads are formed in the second threaded holes 8, external threads are formed in the piercing bolt 2, and the piercing bolt 2 and the open end 11 are connected in a matched manner through the internal threads and the external threads.

Optionally, a third threaded hole 9 is formed in the closed end 12, an internal thread is formed in the third threaded hole 9, an external thread is formed in the unsealing bolt 3, and the unsealing bolt 3 and the closed end 12 are connected in a matched mode through the internal thread and the external thread.

The utility model discloses an application method is, at first will open SF6 gas recovery in the blind flange SF6 air chamber and take out this air chamber for the negative pressure, demolish and need open two bolts that lap directly over of GIS, will the utility model is used for the device of opening of GIS apron is adorned on the blind flange, specifically, overlaps U type ring 1 and piercing bolt 2 on the blind flange, and the gap between blind flange and the gai kou is aimed at to the tool bit 41 among the sharp awl 4 of will opening, gets rid of all bolts between the blind flange, then rotatory bolt 3 of opening, and bolt 3 drives the direction motion of opening sharp awl 4 to piercing bolt 2, and the flat mouthful of tool bit 41 of opening sharp awl 4 aims at the clearance between blind flange and the lid and opens the operation of sealing. The cooperation of U type ring 1 and punching bolt 2 has avoided the GIS apron to fall and has injures the operation personnel by a crashing object, has ensured operation personnel's construction safety.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But variations and modifications which do not depart from the spirit and scope of the invention should be construed as being included in the scope of the appended claims.

Claims (8)

1. An unsealing device for a GIS cover plate comprises a U-shaped ring, wherein the open end of the U-shaped ring is in threaded connection with a piercing bolt, and the piercing bolt closes the open end of the U-shaped ring; the closed end of the U-shaped ring is in threaded connection with an unsealing bolt, and one end of the unsealing bolt is rotatably connected with an unsealing pointed cone; the unsealing pointed cone is arranged in the U-shaped ring; the sealing device is characterized by further comprising a bearing, wherein an annular groove is formed in one end, close to the through bolt, of the unsealing bolt, and the bearing is sleeved in the groove; one end of the unsealing pointed cone is a tool bit, the other end of the unsealing pointed cone is a hollow cylindrical sleeve, one end of the unsealing bolt, which is provided with a bearing, is inserted into the sleeve and is contacted with the bottom of the sleeve, and the sleeve is fixedly connected with the outer ring of the bearing; the U-shaped ring and the cutter head are externally coated with an insulating protective rubber sleeve.

2. The unsealing device for the GIS cover plate according to claim 1, further comprising a fixing bolt, wherein a plurality of first threaded holes are symmetrically arranged on the sleeve, the fixing bolt is in one-to-one corresponding threaded connection with the first threaded holes, and the fixing bolt abuts against an outer ring of the bearing.

3. The unsealing device for a GIS cover plate of claim 1, wherein the unsealing bolt comprises a body and a cap, the bearing being disposed between the body and the cap.

4. The unsealing device for the GIS cover plate according to claim 3, wherein one end of the main body is provided with a connecting hole, the bearing is sleeved on the connecting hole, and one end of the cap body is rotatably connected in the connecting hole through a snap spring.

5. The unsealing device for a GIS cover plate of claim 1, wherein an outer ring of the bearing is not higher than an inner diameter surface of the unsealing bolt.

6. The unsealing device for a GIS cover plate of claim 1, wherein the bearing is a deep groove ball bearing.

7. The unsealing device for the GIS cover plate according to claim 1, wherein second threaded holes are respectively arranged on two sides of the open end of the U-shaped ring, and the through bolt is in fit connection with the second threaded holes.

8. The unsealing device for the GIS cover plate according to claim 1, wherein a third threaded hole is provided on the closed end of the U-shaped ring, and the unsealing bolt is connected with the third threaded hole in a matching way.

Images