CN211789572U - Staple bolt fastener - Google Patents
Staple bolt fastener Download PDFInfo
- Publication number
- CN211789572U CN211789572U CN202020890903.2U CN202020890903U CN211789572U CN 211789572 U CN211789572 U CN 211789572U CN 202020890903 U CN202020890903 U CN 202020890903U CN 211789572 U CN211789572 U CN 211789572U
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- China
- Prior art keywords
- ear
- fastener
- embrace
- staple bolt
- clamp
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Abstract
The utility model discloses a staple bolt fastener, embrace the ear, two including fastener body and two embrace the ear the earlobe set up in on the fastener body, lie in two on the fastener body embrace and be provided with the opening between the ear, the other end of fastener body is provided with the backup pad, one of them the medial surface of embracing the ear is provided with the extension limit. Because one of them embrace and set up the extension limit on the ear, so when the bolt presss from both sides tight staple bolt fastener, two it has the clearance all the time to embrace between the ear for the staple bolt fastener can not lead to its fracture because of the excessive clamp of bolt. The utility model provides a staple bolt fastener, on-the-spot staple bolt fastener of installing need not to use the torque spanner that the price is expensive, only needs to use ordinary spanner alright install, and the bolt-up reaches the maximum position, because there is the limit of extension, the bolt just can't remove, avoids because the staple bolt fastener fracture that excessive fastening leads to.
Description
Technical Field
The utility model relates to an electric power system field especially relates to a staple bolt fastener.
Background
In an electric power system, the hoop wire clamp is widely applied. Due to the limitation of manufacturing process and materials and complex structure, the hoop wire clamp is formed in one step by adopting a casting process, most of cast metal is brittle material, the toughness is poor, and the defects of air holes, looseness and the like easily occur in the casting process, so that the stress capacity of the wire clamp is poor. The hoop wire clamp needs to be designed with the hoop lugs and fastened by using bolts because the hoop wire clamp needs to be in close contact with the middle conductor, so that turning parts are designed at multiple positions of the hoop wire clamp structure, and obvious stress concentration exists at the turning parts.
The anchor ear wire clamp is usually made of cast copper or cast aluminum, and a gap of 4-6mm is generally reserved in the gap between the ear hoops due to casting technology and the like. According to finite element calculation, the clamping lug fastening displacement exceeds 1.5mm, the maximum stress position of the wire clamp clamping lug exceeds the yield strength of the material, and the material is permanently deformed. The staple bolt fastener that uses at present often leads to its fracture because the bolt is excessively fastened, during this type of staple bolt fastener field installation, use preset torque wrench control fastening bolt's that has moment limit function installation moment usually, but in the actual work, this torque wrench price is higher, constructor adopts cheap pointer type torque wrench or ordinary spanner to fasten mostly, can't restrict maximum fastening moment, consequently cause a lot of staple bolt fastener to excessively fasten to lead to final fracture.
Therefore, how to design the hoop clamp for avoiding the fracture caused by excessive clamping becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model provides a staple bolt fastener to solve current staple bolt fastener and excessively tighten easy cracked problem.
The utility model provides a staple bolt fastener, embrace the ear, two including fastener body and two embrace the ear lobe set up in on the fastener body, lie in two on the fastener body embrace and be provided with the opening between the ear, the other end of fastener body is provided with the backup pad, one of them the medial surface of embracing the ear is provided with the extension limit.
Optionally, the extension edge is disposed on an upper portion of one of the clasps.
Optionally, the width of the extending edge is smaller than the width of the opening.
Optionally, the length of the extending edge is the same as that of the holding ear.
Optionally, the wire clamp body and the two holding lugs are integrally formed.
Optionally, the extension edge is integrally formed with one of the clasps.
Optionally, the support plate is fixed to the wire clamp body by a reinforcing rib.
Optionally, the extension edge is a metal extension edge.
The utility model provides a pair of staple bolt fastener, embrace the ear, two including fastener body and two embrace the ear lobe set up in on the fastener body, lie in two on the fastener body embrace and be provided with the opening between the ear, the other end of fastener body is provided with the backup pad, one of them the medial surface of embracing the ear is provided with the extension limit. Because one of them embrace and set up the extension limit on the ear, so when the bolt presss from both sides tight staple bolt fastener, two it has the clearance all the time to embrace between the ear for the staple bolt fastener can not lead to its fracture because of the excessive clamp of bolt. The utility model provides a staple bolt fastener, on-the-spot staple bolt fastener of installing need not to use the torque spanner that the price is expensive, only needs to use ordinary spanner alright install, and the bolt-up reaches the maximum position, because there is the limit of extension, the bolt just can't remove, avoids because the staple bolt fastener fracture that excessive fastening leads to.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic structural view of a hoop clamp provided by the present invention;
fig. 2 is a front view of a hoop clamp provided by the present invention;
fig. 3 is the utility model provides a pair of staple bolt fastener's local schematic diagram.
Illustration of the drawings:
wherein, 1-the wire clamp body; 2, ear holding; 3-opening; 4-a support plate; 5-an extension edge; 6-reinforcing ribs.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the description below, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 3, the utility model provides a staple bolt fastener, embrace ear 2, two including fastener body 1 and two embrace ear 2 set up perpendicularly in on the fastener body 1, lie in two on the fastener body 1 embrace and be provided with opening 3 between ear 2, the other end of fastener body 1 is provided with backup pad 4, one of them the medial surface of embracing ear 2 is provided with extends limit 5.
The principle of the utility model is that: stress state when can simulate the staple bolt fastener fastening after the finite element modeling, the stress value of staple bolt fastener maximum stress position when confirming different fastening degree to confirm to embrace the maximum displacement numerical value of ear, embrace the medial surface of ear and set up extension limit 5 wherein, can't excessively fasten when making the field installation.
The staple bolt fastener of on-the-spot installation need not to use the torque spanner that the price is expensive, only needs to use ordinary spanner alright install, and the bolt-up reaches the maximum position, because there is 5 restrictions on extension limit, the bolt just can't remove, avoids because the staple bolt fastener fracture that excessive fastening leads to.
In order to ensure that there is always a gap between the lower parts of the two clasping ears 2, the extension edge 5 is optionally arranged on the upper part of one of the clasping ears 2, and the width of the extension edge 5 is smaller than that of the opening 3.
Optionally, the length of the extension edge 5 is the same as the length of the ear holding part 2.
In order to facilitate the field installation of the hoop wire clamp, optionally, the wire clamp body 1 and the two holding lugs 2 are integrally formed.
In order to facilitate the field installation of the anchor ear clip, the extension edge 5 is optionally integrally formed with one of the holding lugs 2.
Optionally, the supporting plate 4 is fixed with the wire clamp body 1 through a reinforcing rib 6.
Alternatively, the extension edge 5 is a metal extension edge.
The utility model provides a pair of staple bolt fastener, embrace ear 2, two including fastener body 1 and two embrace ear 2 set up perpendicularly in on the fastener body 1, lie in two on the fastener body 1 embrace and be provided with opening 3 between ear 2, the other end of fastener body 1 is provided with backup pad 4, one of them the medial surface of embracing ear 2 is provided with extension limit 5. Because one of them embrace and set up extension limit 5 on the ear 2, so when the bolt presss from both sides tight staple bolt fastener, two it always has the clearance to embrace between the ear 2 for the staple bolt fastener can not lead to its fracture because of the excessive clamp of bolt. The utility model provides a staple bolt fastener, on-the-spot staple bolt fastener of installing need not to use the torque spanner that the price is expensive, only needs to use ordinary spanner alright install, and the bolt-up reaches the maximum position, because there is 5 restrictions on extension limit, the bolt just can't remove, avoids because the staple bolt fastener fracture that excessive fastening leads to.
The above is only a specific embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a staple bolt fastener, includes fastener body (1) and two embrace ear (2), two embrace ear (2) set up perpendicularly in on fastener body (1), lie in two on fastener body (1) embrace and be provided with opening (3) between ear (2), the other end of fastener body (1) is provided with backup pad (4), its characterized in that, one of them the medial surface of embracing ear (2) is provided with extends limit (5).
2. A wire clamp as claimed in claim 1, characterised in that the extension edge (5) is provided at the upper part of one of the ears (2).
3. A staple clamp as claimed in claim 1, characterised in that the width of the extending edge (5) is less than the width of the opening (3).
4. A staple clamp as claimed in claim 1, characterised in that the length of the extension edge (5) is the same as the length of the ear (2).
5. The hoop clamp of claim 1, wherein the clamp body (1) and the two holding lugs (2) are integrally formed.
6. A staple clamp as claimed in claim 1, characterised in that the extension edge (5) is integrally formed with one of the ears (2).
7. The hoop clamp of claim 1, wherein the support plate (4) is fixed with the clamp body (1) through a reinforcing rib (6).
8. The clamp according to claim 1, characterized in that the extension edge (5) is a metal extension edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020890903.2U CN211789572U (en) | 2020-05-25 | 2020-05-25 | Staple bolt fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020890903.2U CN211789572U (en) | 2020-05-25 | 2020-05-25 | Staple bolt fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211789572U true CN211789572U (en) | 2020-10-27 |
Family
ID=72956109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020890903.2U Active CN211789572U (en) | 2020-05-25 | 2020-05-25 | Staple bolt fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211789572U (en) |
-
2020
- 2020-05-25 CN CN202020890903.2U patent/CN211789572U/en active Active
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |