CN212162109U - Fixing rivet and heat shrinkable sleeve - Google Patents
Fixing rivet and heat shrinkable sleeve Download PDFInfo
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- CN212162109U CN212162109U CN202021191473.1U CN202021191473U CN212162109U CN 212162109 U CN212162109 U CN 212162109U CN 202021191473 U CN202021191473 U CN 202021191473U CN 212162109 U CN212162109 U CN 212162109U
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- rivet
- square hoop
- boss
- shaped buckle
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Abstract
The utility model discloses a fixing rivet, including aluminium alloy post, aluminum alloy boss and elasticity boss are fixed respectively and are formed the nail body at the both ends of aluminium alloy post, and the periphery parcel of nail body has insulating plastic layer. Still disclose a pyrocondensation cover, including square hoop and foretell set rivet, square hoop is buckled by a pyrocondensation board and is formed, and two links of square hoop all are equipped with the connecting plate, and the connecting plate of two links of square hoop passes through set rivet and connects. The fixing rivet and the thermal shrinkable sleeve have the advantages of simple structure, convenience in installation, long service life, difficulty in falling off and the like.
Description
Technical Field
The utility model relates to a female row of transformer substation refutes and connects technical field, especially relates to a fixing rivet and pyrocondensation cover.
Background
A transformer of a transformer substation usually adopts a multiple parallel aluminum busbar design at a 10kV low-voltage side bus, and the purpose of the bus busbar design is to reduce resistance, improve the through-current capacity and reduce the possibility of equipment heating. The bus bar needs to consider the problems of water resistance, rust resistance and attractiveness in the operation and maintenance stage, and the common method is that ABC three phases are sequentially wrapped with yellow, green and red three-color insulating heat shrinkable sleeves.
As shown in fig. 1, the bus bar connection position is usually fixed by a bolt, and the heat shrinkable sleeve wrapped around the bus bar connection position is usually fixed by a plastic rivet. In the daily operation and maintenance of the transformer, a maintainer finds that the plastic rivet is easy to age and embrittle and has short service life under the influence of the surrounding severe working environment, such as high temperature, high humidity, ultraviolet rays and the like. When the plastic rivet for fixing the heat shrinkable sleeve is completely embrittled, the heat shrinkable sleeve is easy to fall off.
After the heat shrinkable sleeve falls off, if the heat shrinkable sleeve falls on the ground, the processing method comprises the steps of waiting for operation and maintenance personnel to arrange the transformer to reset the heat shrinkable sleeve when the power failure occurs; if the heat shrinkable sleeve falls on the transformer working platform, even in a half-falling state, the heat shrinkable sleeve is hung between the busbar and the transformer platform, so that the transformer is likely to be in a low outgoing line grounding short circuit. The grounding short circuit has great destructiveness on the normal operation of the transformer, and meanwhile, the safe and stable operation of a power system is seriously influenced, and the grounding short circuit needs to be immediately processed in the production operation.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple structure, simple to operate, long service life and be difficult for the fixing rivet and the heat shrinkable sleeve that drop.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a fixing rivet, is applied to the fixed of pyrocondensation cover, and fixing rivet includes aluminium alloy post, aluminum alloy boss and elasticity boss are fixed respectively and are formed the nail body at the both ends of aluminium alloy post, the periphery parcel of nail body has insulating plastic layer.
As a further improvement of the above technical solution:
and one end of the elastic boss, which is far away from the aluminum alloy boss, is provided with a guide conical surface.
The utility model provides a thermal shrinkable sleeve, includes square hoop and foretell set rivet, square hoop is buckled by a pyrocondensation board and is formed, two links of square hoop all are equipped with the connecting plate, the connecting plate of two links of square hoop passes through set rivet and connects.
As a further improvement of the above technical solution:
the connecting plate is located at the middle position of one side surface of the square hoop.
The thermal shrinkable sleeve further comprises a U-shaped buckle, and the connecting plates of the two connecting ends of the square hoop are connected in a clamping manner through the U-shaped buckle.
And a penetration hole for fixing a rivet to penetrate is formed in the side wall of the U-shaped buckle.
The inner side of the side wall of the U-shaped buckle is provided with an insertion block protruding inwards, the outer side of the connecting plate is provided with a slot, and the insertion block is inserted into the slot.
Rivet mounting holes are formed in the opposite positions of the two connecting plates, and the fixing rivets are inserted into the opposite rivet mounting holes.
And the inner surfaces of two opposite sides of the square hoop are provided with cover protection grooves for covering and protecting the end parts of the bolts.
The side wall of the square hoop, which is opposite to the side where the connecting plate is located, is provided with a drain hole.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a fixing rivet, including aluminium alloy post, aluminum alloy boss and elasticity boss are fixed respectively and are formed the nail body at the both ends of aluminium alloy post, and the periphery parcel of nail body has insulating plastic layer. This fixing rivet is applied to the fixed of pyrocondensation cover, and this fixing rivet adopts built-in aluminum alloy structure spare (aluminium alloy post, aluminum alloy boss and elasticity boss), wraps up the mode of insulating plastic material (insulating plastic layer) outward, makes its simple structure, long service life, and is firm during the use, safe, reliable, durable, can firmly fix the pyrocondensation cover, stops the event that transformer step-down generating line pyrocondensation cover drops, ensures the safe and reliable operation of transformer. Because one end of the aluminum alloy column is the elastic boss, the elastic boss has radial elastic deformation capacity, when the aluminum alloy column is installed, the elastic boss is inserted into the installation hole, the elastic boss is radially reduced in the installation hole, and the original shape is recovered after the elastic boss penetrates through the installation hole, so that the aluminum alloy boss and the elastic boss are clamped and fixed with the thermal shrinkable sleeve.
The utility model discloses a thermal shrinkable sleeve, including square hoop and foretell fixing rivet, square hoop is buckled to form by a pyrocondensation board, and two links of square hoop all are equipped with the connecting plate, and the connecting plate of two links of square hoop passes through fixing rivet to be connected. The connecting plates of the two connecting ends of the square hoop of the thermal shrinkable sleeve are connected through the fixing rivet, so that the connection is convenient and firm. The heat shrinkable sleeve is simple in structure, convenient to install, long in service life and not easy to fall off, the falling-off event of the transformer-reduction bus heat shrinkable sleeve can be avoided, and the safe and reliable operation of the transformer is guaranteed.
Drawings
Fig. 1 is a schematic structural view of a bus bar docking position.
Fig. 2 is a schematic perspective view of the fixing rivet of the present invention.
Fig. 3 is a schematic sectional view of the fixing rivet according to the present invention.
Fig. 4 is a use diagram of the thermal shrinkable sleeve of the present invention.
Fig. 5 is an enlarged view at a in fig. 4.
Fig. 6 is a schematic perspective view of the thermal shrinkable sleeve of the present invention.
Fig. 7 is a schematic view of the thermal shrinkable sleeve of the present invention.
Fig. 8 is an enlarged view at B in fig. 7.
Fig. 9 is a schematic structural diagram of the connecting plate of the thermal shrinkable sleeve of the present invention.
The reference numerals in the figures denote:
1. fixing the rivet; 11. an aluminum alloy pillar; 12. an aluminum alloy boss; 13. an elastic boss; 14. an insulating plastic layer; 15. a guiding conical surface; 2. a square hoop; 3. a U-shaped buckle; 31. a penetration opening; 32. inserting a block; 4. a connecting plate; 41. a slot; 5. a rivet mounting hole; 6. covering the protection groove; 7. and (4) draining the water.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples.
Fig. 2 and fig. 3 show the utility model discloses a fixing rivet 1's an embodiment, this fixing rivet 1 includes aluminum alloy post 11, aluminum alloy boss 12 and elasticity boss 13, and aluminum alloy boss 12 and elasticity boss 13 are fixed respectively and are formed the nail body at the both ends of aluminum alloy post 11, and the periphery parcel of nail body has insulating plastic layer 14. This fixing rivet 1 is applied to the fixed of pyrocondensation cover, and this fixing rivet 1 adopts built-in aluminum alloy structure spare (aluminum alloy post 11, aluminum alloy boss 12 and elasticity boss 13), wraps up the mode of insulating plastic material (insulating plastic layer 14) outward, makes its simple structure, long service life, and is firm during the use, safe, reliable, durable, can firmly fix the pyrocondensation cover, stops the event that transformer step-down generating line pyrocondensation cover drops, the safe and reliable operation of guarantee transformer. Because one end of the aluminum alloy column 11 is the elastic boss 13, the elastic boss 13 has radial elastic deformation capacity, when being installed, the elastic boss 13 is inserted into the installation hole, the elastic boss 13 is radially reduced in the installation hole, and the original shape is recovered after passing through the installation hole, so that the aluminum alloy boss 12 and the elastic boss 13 are tightly clamped and fixed with the thermal shrinkage sleeve.
In this embodiment, a guiding conical surface 15 is disposed at an end of the elastic boss 13 away from the aluminum alloy boss 12, so as to facilitate insertion and installation of the fixing rivet 1. The insulating plastic layer 14 is formed by adopting a glue injection process, has the thickness of 0.5mm, and is wear-resistant, corrosion-resistant, insulating and flame-retardant.
Fig. 4 to 9 show an embodiment of the thermal shrinkable sleeve of the present invention, which comprises a square hoop 2 and the fixing rivet 1, wherein the square hoop 2 is formed by bending a thermal shrinkable plate, two connecting ends of the square hoop 2 are both provided with a connecting plate 4, and the connecting plate 4 of the two connecting ends of the square hoop 2 is connected through the fixing rivet 1. Specifically, the end surface of the square hoop 2 is square, and the middle position of one side of the square is broken (i.e. the position of the two connecting ends of the square hoop 2). The connecting plates 4 of the two connecting ends of the square hoop 2 of the thermal shrinkable sleeve are connected through the fixing rivet 1, and the connection is convenient and firm. The heat shrinkable sleeve is simple in structure, convenient to install, long in service life and not easy to fall off, the falling-off event of the transformer-reduction bus heat shrinkable sleeve can be avoided, and the safe and reliable operation of the transformer is guaranteed.
In this embodiment, as shown in fig. 5 to 7, the connecting plate 4 is located at a middle position of one side of the square hoop 2. Specifically, the two connecting plates 4 and the square hoop 2 are integrally formed and arranged oppositely, so that the structure is attractive and the connecting operation is convenient.
In this embodiment, as shown in fig. 5 to 8, the heat shrinkable sleeve further includes a U-shaped buckle 3, and the connection plates 4 at the two connection ends of the square hoop 2 are connected by the U-shaped buckle 3. The section of the U-shaped buckle 3 is U-shaped. The square hoop 2 has elastic deformation capability. As shown in fig. 4, during the installation, earlier with square hoop 2 hoop female row overlap the junction, then, block U-shaped buckle 3 on the connecting plate 4 of two links of square hoop 2, avoid changing the butt joint position of two connecting plates 4 because of square hoop 2's elastic deformation ability, then, install fixing rivet 1 again, connect two connecting plates 4 to installation effectiveness has been improved.
In this embodiment, as shown in fig. 5 and 6, a penetration opening 31 for penetration of the fixing rivet 1 is provided on a side wall of the U-shaped buckle 3. Specifically, two connecting plates 4 are provided with rivet mounting holes 5 at opposite positions, and the fixing rivets 1 are inserted into the opposite rivet mounting holes 5. The number of the rivet mounting holes 5 is three, the three rivet mounting holes 5 are arranged at intervals along the length direction of the connecting plates 4, and the two connecting plates 4 are connected through the three rivet mounting holes 5 and are firmly connected. After the U-shaped buckle 3 is clamped on the connecting plate 4 of the two connecting ends of the square hoop 2, the U-shaped buckle 3 can not cover the rivet mounting hole 5 due to the existence of the penetrating port 31, and the influence on the installation of the fixing rivet 1 is avoided. The penetrating port 31 may be an open slot opened toward one side of the opening side of the U-shaped buckle 3, and the U-shaped buckle 3 may be drawn out after the fixing rivet 1 is installed. Of course, the penetrating port 31 may also be provided with a port with a closed periphery, and after the fixing rivet 1 is installed, the U-shaped buckle 3 is continuously clamped on the two connecting plates 4, so as to further improve the firmness and durability of the heat shrinkable sleeve.
In this embodiment, as shown in fig. 8 and 9, the inner side of the side wall of the U-shaped buckle 3 is provided with an insertion block 32 protruding inward, the outer side of the connecting plate 4 is provided with a slot 41, and the insertion block 32 is inserted into the slot 41. When the U-shaped buckle 3 is clamped, the insertion block 32 is inserted along the slot 41 until the U-shaped buckle 3 is clamped on the two connecting plates 4, and the extension direction of the slot 41 is perpendicular to the connecting line direction of the rivet mounting hole 5 (namely, the length direction of the connecting plates 4), so that the U-shaped buckle 3 cannot move along the connecting line direction of the rivet mounting hole 5 after being mounted, namely, the slot 41 and the insertion block 32 are matched to limit the connecting line direction of the U-shaped buckle 3 in the rivet mounting hole 5, and the U-shaped buckle 3 is prevented from moving in the direction to cover the rivet mounting hole 5.
In this embodiment, as shown in fig. 6, the two opposite inner surfaces of the square hoop 2 are provided with a cover groove 6 for covering the end of the bolt. Because the bolt both ends that female row refuted the department are outside convex, set up and cover guard slot 6, can avoid the influence that the bolt tip held the installation to square hoop 2 tightly to make the guard action of thermal shrinkable sleeve better.
In this embodiment, as shown in fig. 6, the side wall of the square hoop 2 opposite to the connecting plate 4 is provided with a drainage hole 7, so that water can be drained in time, and the safety is improved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A fixing rivet (1), characterized in that: be applied to the fixed of pyrocondensation cover, set rivet (1) includes aluminium alloy post (11), aluminum alloy boss (12) and elasticity boss (13), the both ends at aluminium alloy post (11) are fixed respectively to aluminum alloy boss (12) and elasticity boss (13) form the nail body, the periphery parcel of nail body has insulating plastic layer (14).
2. Set rivet (1) according to claim 1, characterized in that: and one end of the elastic boss (13) far away from the aluminum alloy boss (12) is provided with a guide conical surface (15).
3. A thermal shrinkable sleeve is characterized in that: the fixing rivet (1) comprises a square hoop (2) and the fixing rivet (1) as claimed in claim 1 or 2, wherein the square hoop (2) is formed by bending a heat-shrinkable plate, connecting plates (4) are arranged at two connecting ends of the square hoop (2), and the connecting plates (4) at the two connecting ends of the square hoop (2) are connected through the fixing rivet (1).
4. The heat shrink sleeve of claim 3, wherein: the connecting plate (4) is positioned in the middle of one side face of the square hoop (2).
5. The heat shrink sleeve of claim 3, wherein: the thermal shrinkable sleeve further comprises a U-shaped buckle (3), and the connecting plates (4) at the two connecting ends of the square hoop (2) are connected in a clamping manner through the U-shaped buckle (3).
6. The heat shrink sleeve of claim 5, wherein: and a penetrating port (31) for the fixing rivet (1) to penetrate is arranged on the side wall of the U-shaped buckle (3).
7. The heat shrink sleeve of claim 6, wherein: the U-shaped buckle is characterized in that an inward protruding insertion block (32) is arranged on the inner side of the side wall of the U-shaped buckle (3), a slot (41) is formed in the outer side of the connecting plate (4), and the insertion block (32) is inserted into the slot (41).
8. The heat shrink sleeve of claim 3, wherein: rivet mounting holes (5) are formed in the opposite positions of the two connecting plates (4), and the fixing rivets (1) are inserted into the opposite rivet mounting holes (5).
9. The heat shrink sleeve according to any one of claims 3 to 8, wherein: and the inner surfaces of two opposite sides of the square hoop (2) are provided with cover protection grooves (6) for covering and protecting the end parts of the bolts.
10. The heat shrink sleeve according to any one of claims 3 to 8, wherein: the side wall of the square hoop (2) opposite to the side where the connecting plate (4) is arranged is provided with a drain hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021191473.1U CN212162109U (en) | 2020-06-23 | 2020-06-23 | Fixing rivet and heat shrinkable sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021191473.1U CN212162109U (en) | 2020-06-23 | 2020-06-23 | Fixing rivet and heat shrinkable sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212162109U true CN212162109U (en) | 2020-12-15 |
Family
ID=73700828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021191473.1U Active CN212162109U (en) | 2020-06-23 | 2020-06-23 | Fixing rivet and heat shrinkable sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212162109U (en) |
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2020
- 2020-06-23 CN CN202021191473.1U patent/CN212162109U/en active Active
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