CN205960216U - Device for preventing transmission line contact is not hard up - Google Patents
Device for preventing transmission line contact is not hard up Download PDFInfo
- Publication number
- CN205960216U CN205960216U CN201620762425.0U CN201620762425U CN205960216U CN 205960216 U CN205960216 U CN 205960216U CN 201620762425 U CN201620762425 U CN 201620762425U CN 205960216 U CN205960216 U CN 205960216U
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- Prior art keywords
- bolt
- nut
- screw rod
- rod end
- pad
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Abstract
The utility model provides a device for preventing transmission line contact is not hard up, it includes first bolt, first nut, second bolt, second nut and second nut locking plate, first bolt is hexagon head punching bolt, and first bolt passes the bolt hole of power transmission and transformation circuit contact, the terminal cooperation in proper order to screw rod end direction from a the bolt head has second plane gasket, first concave surface spring washer and first nut at a bolt and screw, the second bolt is the hex bolts, and the second bolt passes first bolt center hole and extends the certain length of center hole, the 2nd bolt and screw terminal coordinate in proper order to screw rod end direction from the 2nd the bolt head have fourth plane gasket, second concave surface spring washer, second nut and second nut locking plate. Through installing second nut locking plate additional outside the second nut being connected with the cooperation of second bolt, prevented that bolt and nut takes off the silk after the bolt is wholly disheartened, the contact is not hard up. The effectual safety of having guaranteed contact in the power transmission and transformation circuit has reduced the work load of maintainer.
Description
Technical field
This utility model is related to electric power safety equipment technical field, is used for preventing transmission line of electricity due to heat particularly to one kind
The device that the line contacts that swollen shrinkage causes loosen.
Background technology
With social development industrialized level and modern Living consumption with continuous improvement, power load rapidly increases
Long, electricity the daily life of the people is affected increasing, to generating electricity, the safe and reliable defeated, power supply of power supply enterprise propose higher
Require, power transformation, transmission of electricity, the safe and reliable operation of distribution line become among in power generation or supply enterprise's weight.
Detection according to related charging equipment live detection requires, and will strengthen the thermometric work to power transmission and transforming equipment, prevent
The security incident that only power transmission and transforming equipment excess temperature causes.Wherein power transformation, electric line contact loosen be impact equipment safety fortune
One of factor of row！Significantly more efficient to ensure summer, the peak times of power consumption in season in winter two, to ensure power transformation, transmission of electricity, the safety on distribution road
Reliability service is it is necessary to the line fault reducing Substation Electric Equipment, line contacts heating causes.According to《Power equipment joins
Preventive trial code》North China Power Group Corp,《Power equipment preventive trial code》People's Republic of China's electric power row
Industry standard, the test period：Critical cables 1 year, general cable 3 years.For from the time of test period, the time that crosses over is very long,
Therefore a lot of power cable cannot every year or half a year maintenance once, so the contact of all power supply units becomes safe and reliable
The most important thing.In addition the enhancing with service awareness over the years, the typically no significant deficiency of present equipment does not allow to have a power failure, this
Safe and reliable put forward higher requirement to the contact of power transmission and transforming equipment.
At present power transmission and transformation line is all to realize being connected of line contacts using plain bolt, in the case of life-time service
There are the physical reactions causing contact when equipment, circuit are because of load increase or season temperature Change：Expand with heat and contract with cold！Thus leading
Cause contact bolt looseness, cause contact to generate heat, longtime running easily causes the line that Substation Electric Equipment, line contacts heating cause
Road fault.
Utility model content
For overcoming problems of the prior art, this utility model provides a kind of peace that can effectively prevent contact from loosening
Full device.
The technical scheme in the invention for solving the technical problem is：This kind prevents transmission line of electricity contact from loosening
Device, it includes the second spiral shell of first nut, the second bolt and the cooperation of the second bolt of the first bolt and the cooperation of the first bolt
Mother and the second nut locking plate.
The first described bolt is turret head punching bolt, and the first bolt passes through power transmission and transformation line after adding the first flat pad
The bolt hole of contact, is successively combined with second plane from the first bolt head to screw rod end direction in the first bolt screw rod end
Pad, the first saucer washer and the first nut, and the concave surface of the first saucer washer is towards the second flat pad.
Second bolt is hex bolts, and the screw rod end that the second bolt adds the second bolt after the 3rd flat pad passes through first
Bolt center hole simultaneously extends center hole certain length；In the second bolt screw rod end from the second bolt head to screw rod end side
To being combined with fourth plane pad, the second saucer washer, the second nut and the second nut locking plate successively, and the second concave surface bullet
The concave surface of spring packing ring is towards fourth plane pad.
Further, the described internal diameter of fourth plane pad is identical with the screw diameter of the second bolt, external diameter and first
Nut is identical to edge lengths.
Further, the first saucer washer is flattened 1/3～1/2 by the first described nut.
Further, the second saucer washer is flattened 1/2 by the second described nut.
Further, the first bolt and the second bolt are all 8.8 grades using performance rate low-carbon alloy steel or medium carbon steel.
To sum up, the having the beneficial effect that of technique scheme of the present utility model：By the first bolt and the second bolt
Coordinate, and the first saucer washer and second spring packing ring are compressed and flatten certain by the first nut and the second nut respectively
Ratio is it is achieved that fastening to contact in power transmission and transformation line.By installing additional outside the second nut being connected with the second bolt
Second nut locking plate is it is therefore prevented that integrally disheartened rear bolt nut running, contact loosen in bolt.It is effectively guaranteed power transmission and transformation line
The safety of contact in road, also greatly reduces the workload of maintainer.
Brief description
Fig. 1 is annexation schematic diagram of the present utility model；
Fig. 2 is the axis view of Fig. 1；
Fig. 3 is partial enlarged drawing at A in Fig. 2.
In figure：
1 first bolt, 2 first nut, 2,3 second bolt 3,4 second nut, 5 first flat pad 5,6 second planar pad
Piece, 7 first saucer washers, 8 the 3rd flat pad, 9 center holes, 10 fourth plane pads, 11 second saucer washers,
12 second nut locking plates, 13 first bolt screw rods, 14 second bolt screw rods, 15 first bolt screw rod ends.
Specific embodiment
Below in conjunction with accompanying drawing 1- Fig. 3, feature of the present utility model and principle are described in detail, illustrated embodiment is only used
In explaining this utility model, not protection domain of the present utility model is limited with this.
As shown in figure 1, this utility model includes, the first nut 2 of the first bolt 1 and the first bolt 1 cooperation, the second spiral shell
Second nut 4 of bolt 3 and the second bolt 3 cooperation and the second nut 4 locking plate.
First bolt 1 can adopt turret head punching bolt, passes through power transmission and transformation after the first bolt 1 plus the first flat pad 5
The bolt hole of line contacts, this bolt hole is coordinated with the first bolt 1.The first bolt screw rod end 15 from the first bolt head to
Screw rod end direction is combined with the second flat pad 6, the first saucer washer 7 and the first nut 2 successively, and the first concave surface bullet
The concave surface of spring packing ring 7 is towards the second flat pad 6.
Second bolt 3 is hex bolts, and after the second bolt 3 plus the 3rd flat pad 8, the screw rod end of the second bolt 3 passes through
First bolt center hole 9 simultaneously extends center hole 9 certain length；In the second bolt 3 screw rod end from the second bolt 3 head to spiral shell
Bar end direction is combined with fourth plane pad 10, the second saucer washer 11, the second nut 4 and the second nut locking plate successively
12, and the concave surface of the second saucer washer 11 is towards fourth plane pad 10.
The mounting means of this device is：
As shown in Fig. 2 the first bolt 1 is added the bolt gone here and there after the first flat pad 5 in power transmission and transformation line equipment contact
In the hole, the screw of this bolt hole and the first bolt 1 cooperates.Passing through one end of contact from the first bolt 1 is the first spiral shell
The end of bolt screw rod 13 adds puts the second flat pad 6, outside the second flat pad 6 plus put the first saucer washer 7.Enter
One step ground, the concave surface of described first saucer washer 7 is directed towards faced washer.Again the screw portion of the second bolt 3 is inserted
Enter in the center hole 9 of the first bolt 1, and be additionally provided with the 3rd planar pad between the second bolt 3 and the first bolt head portion
Piece 8.Then the first nut 2 is screwed in the screw rod end of the first bolt 1, and the first nut 2 is screwed to the first saucer
Packing ring 7 concave surface flattens 1/3～1/2 (the 1/3～1/2 of the original thickness of saucer washer) and can be considered compression contact, and protects
Hold the yield strength of the first saucer washer 7, leave the leeway expanded with heat and contract with cold to metallic terminations.Again by internal diameter and the second spiral shell
The suitable fourth plane pad 10 of bolt 3 diameter is nested with the second bolt screw rod 14 part, covers outside fourth plane pad 10 again
Put the second saucer washer 11, be then screwed in the second bolt screw rod 14 part to the second nut 4 through the second nut 4 and be screwed to
Two saucer washer 11 concave surface flattens 1/3～1/2 (the 1/2 of the original thickness of saucer washer) and can be considered compression contact,
Compression intensity is tighter than mother nut, prevents mother nut running.It is close to the second nut 4 and tightened the second spiral shell outside the second nut 4
Female locking plate 12, thus limiting the second bolt 3 and the second nut 4 running, contact loosens.The screw rod end of the first bolt is recessed first
Under diaphragm flexures packing ring 7 impaction state distance the first nut 2 leave three to four (0.5mm～0.6mm) apart from L1, as Fig. 3 institute
Show.
Further, the first bolt 1 and the second bolt 3 are all 8.8 grades using performance rate low-carbon alloy steel or middle carbon
Steel.
Because metal lax stiffness ratio under state of being expanded with heat and contract with cold for a long time is larger, if in the outer locking of the first nut 2
Piece can not limit its running effectively, be intended to install the second nut locking plate 12 additional outside the second nut 4 after bolt is integrally disheartened, prevent
Only the second bolt 3 and the second nut 4 running, contact loosens.Fully ensure that being fastened securely of contact in power transmission and transformation line, reduced
The workload of maintainer.
Above-described embodiment is only the description that preferred implementation of the present utility model is carried out, the not model to the present invention
Enclose and be defined, on the premise of without departing from this utility model design spirit, relevant technical staff in the field is to this utility model
Various modifications and improvement, all should expand in protection domain determined by this utility model claims.
Claims (5)
1. a kind of prevent transmission line of electricity contact loosen device it is characterised in that：It includes the first bolt and the cooperation of the first bolt
The first nut, the second bolt and the second bolt cooperation the second nut and the second nut locking plate；
The first described bolt is turret head punching bolt, and the first bolt passes through power transmission and transformation line contact after adding the first flat pad
Bolt hole, be successively combined with second planar pad from the first bolt head to screw rod end direction in the first bolt screw rod end
Piece, the first saucer washer and the first nut, and the concave surface of the first saucer washer is towards the second flat pad；
Second bolt is hex bolts, and the screw rod end that the second bolt adds the second bolt after the 3rd flat pad passes through the first bolt
Center hole simultaneously extends center hole certain length；The second bolt screw rod end from the second bolt head to screw rod end direction according to
Secondary be combined with fourth plane pad, the second saucer washer, the second nut and the second nut locking plate, and the second saucer pad
The concave surface of circle is towards fourth plane pad.
2. according to claim 1 a kind of prevent transmission line of electricity contact loosen device it is characterised in that：Described the 4th
The internal diameter of flat pad is identical with the screw diameter of the second bolt, and external diameter is identical to edge lengths with the first nut.
3. according to claim 1 a kind of prevent transmission line of electricity contact loosen device it is characterised in that：Described first
First saucer washer is flattened 1/3～1/2 by nut.
4. according to claim 1 a kind of prevent transmission line of electricity contact loosen device it is characterised in that：Described second
Second saucer washer is flattened 1/2 by nut.
5. according to a kind of arbitrary described device preventing transmission line of electricity contact from loosening of claim 1-4 it is characterised in that：First
Low-carbon alloy steel or medium carbon steel that bolt and the second bolt are all 8.8 grades using performance rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620762425.0U CN205960216U (en) | 2016-07-19 | 2016-07-19 | Device for preventing transmission line contact is not hard up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620762425.0U CN205960216U (en) | 2016-07-19 | 2016-07-19 | Device for preventing transmission line contact is not hard up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205960216U true CN205960216U (en) | 2017-02-15 |
Family
ID=57971852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620762425.0U Expired - Fee Related CN205960216U (en) | 2016-07-19 | 2016-07-19 | Device for preventing transmission line contact is not hard up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205960216U (en) |
-
2016
- 2016-07-19 CN CN201620762425.0U patent/CN205960216U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170719 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |