CN102619844B - Locking device with set spring axial force - Google Patents
Locking device with set spring axial force Download PDFInfo
- Publication number
- CN102619844B CN102619844B CN201210086711.6A CN201210086711A CN102619844B CN 102619844 B CN102619844 B CN 102619844B CN 201210086711 A CN201210086711 A CN 201210086711A CN 102619844 B CN102619844 B CN 102619844B
- Authority
- CN
- China
- Prior art keywords
- nut
- spring
- built
- locking device
- shaft power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 5
- 238000011065 in-situ storage Methods 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Abstract
The invention discloses a locking device with a set spring axial force, and belongs to the field of fastening devices. The locking device comprises a screw, a nut and a piece to be fastened arranged between the screw and the nut, wherein a set spring axial force limiting component is arranged between the nut and the piece to be fastened and comprises a shell and a base, a built-in stainless steel spring gasket, a built-in stainless steel spring, a first nut component and a second nut component which are arranged in the shell and stacked with one another sequentially; the first nut component and the second nut component are provided with female and male teeth; and the set spring axial force limiting component is sleeved on the screw. A reacting force generated by the stressed built-in spring is used as the axial force for fastening the nut; when the nut is screwed down to the set axial force, the female and male teeth of the first nut component and the second nut component which are built-in are meshed in a longitudinal direction, and the spring gasket is limited, so that the built-in spring is not deformed any more; and the nut slips in situ, so that a holding force of a wire clamp to a lead wire is in a controllable range. The locking device can be widely used in fields of fastening of power hardware.
Description
Technical field
The invention belongs to securing means field, relate in particular to a kind of securing means for electric armour clamp.
Background technique
In electric armour clamp, adopting bolt-nut to make fastening piece is common practice.
But due to the restriction on existing bolt-nut structure, cannot limit nut and be tightened onto after certain position it to wire clamp or electric armour clamp institute applied pressure, so can not guarantee the grip of wire clamp to wire.
In the installation process of on-the-spot power equipment, often, because of site operation personnel misoperation, nut excessive screwing, causes wire clamp pressure excessive, and the wire being clipped in is wherein damaged.
Because the wire of present overhead line is from Aluminium Cable Steel Reinforced, copper stranded conductor, develop into carbon fiber core wire, so excessive or unexpected external pressure, can cause unnecessary injury to the wire of overhead line, and then have influence on the overall current capacity of whole overhead line, when serious, can cause a serious accident.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of locking device of spring setting shaft power; it is provided with limit structure in nut; guaranteed nut be tightened onto certain position after (reach certain lock shaft power after); nut skids automatically; no longer apply unnecessary pressure, thus protected wire clamp to the grip of wire in controlled range.
Technological scheme of the present invention is: a kind of locking device of spring setting shaft power is provided, comprises screw rod, nut and be positioned between the two to be tightened, it is characterized in that:
Between nut and to be tightened, spring setting shaft power limitation unit is set;
Described spring setting shaft power limitation unit comprises a shell, is arranged in base, built-in stainless steel spring packing ring, built-in stainless steel spring and first, second nut assembly with negative and positive gear that shell stacks successively;
Described spring setting shaft power limitation unit is sleeved on screw rod;
The reaction force that described locking device utilizes built-in spring pressurized to produce, be used as tightening nut axial force, when nut is tightened onto after setting shaft power, the upper and lower interlock of negative and positive gear of first, second nut assembly, spring washer plays position-limiting action, guaranteed the not redeformation of built-in spring, and skid in nut original place;
After described locking device has guaranteed that nut is tightened onto certain position, reach after certain lock shaft power, nut automatically skids and no longer applies unnecessary pressure, thus protected wire clamp to the grip of wire in controlled range.
Further, described in it, the negative and positive face of gear of first, second nut assembly is oppositely arranged.
Built-in stainless steel spring described in it is set with on the first nut assembly.
Built-in stainless steel spring packing ring described in it is arranged between shell and base.
Compared with the prior art, the advantage of the technical program is:
1. adopt the upper and lower occlusion structure of negative and positive gear of first, second nut assembly, spring washer plays position-limiting action, has guaranteed the not redeformation of built-in spring and skid in nut original place
2. after having guaranteed that nut is tightened onto certain position, reach after certain lock shaft power, nut automatically skids and no longer applies unnecessary pressure, thus protected wire clamp to the grip of wire in controlled range.
Accompanying drawing explanation
Fig. 1 is component decomposing schematic representation of the present invention;
Fig. 2 is the sectional structure schematic diagram of apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
In Fig. 1 and Fig. 2, this locking device comprises screw rod, nut and is positioned between the two to be tightened, and it,, between nut and to be tightened, is provided with spring setting shaft power limitation unit; Described spring setting shaft power limitation unit comprises a shell 1, is arranged in base 3, built-in stainless steel spring packing ring 2, built-in stainless steel spring 4 and first, second nut assembly 5 and 6 with negative and positive gear that shell stacks successively; Described spring setting shaft power limitation unit is sleeved on screw rod 7.
The reaction force that the technical program utilizes built-in spring pressurized to produce, be used as tightening nut axial force, when nut is tightened onto after setting shaft power, the upper and lower interlock of negative and positive gear of first, second nut assembly, spring washer plays position-limiting action, guaranteed the not redeformation of built-in spring, and skid in nut original place.
This product conception feature mainly concentrates on nut inside corresponding several build-in components is set; guaranteed that nut is tightened onto certain position and reaches certain lock shaft power back nut later and automatically skid and no longer apply unnecessary pressure, thus protected wire clamp to the grip of wire in controlled range.
The present invention can be widely used in the fastening field of electric armour clamp.
Claims (4)
1. a locking device for spring setting shaft power, comprises screw rod, nut and is positioned between the two to be tightened, it is characterized in that:
Between nut and to be tightened, spring setting shaft power limitation unit is set;
Described spring setting shaft power limitation unit comprises a shell, is arranged in base, built-in stainless steel spring packing ring, built-in stainless steel spring and first, second nut assembly with negative and positive gear that shell stacks successively;
Described spring setting shaft power limitation unit is sleeved on screw rod;
The reaction force that described locking device utilizes built-in spring pressurized to produce, be used as tightening nut axial force, when nut is tightened onto after setting shaft power, the upper and lower interlock of negative and positive gear of first, second nut assembly, spring washer plays position-limiting action, guaranteed the not redeformation of built-in spring, and skid in nut original place;
After described locking device has guaranteed that nut is tightened onto certain position, reach after certain lock shaft power, nut automatically skids and no longer applies unnecessary pressure, thus protected wire clamp to the grip of wire in controlled range.
2. according to the locking device of spring setting shaft power claimed in claim 1, it is characterized in that the negative and positive face of gear of described first, second nut assembly is oppositely arranged.
3. according to the locking device of spring setting shaft power claimed in claim 1, it is characterized in that described built-in stainless steel spring is set with on the first nut assembly.
4. according to the locking device of spring setting shaft power claimed in claim 1, it is characterized in that described built-in stainless steel spring packing ring is arranged between shell and base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210086711.6A CN102619844B (en) | 2012-03-28 | 2012-03-28 | Locking device with set spring axial force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210086711.6A CN102619844B (en) | 2012-03-28 | 2012-03-28 | Locking device with set spring axial force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102619844A CN102619844A (en) | 2012-08-01 |
| CN102619844B true CN102619844B (en) | 2014-07-09 |
Family
ID=46559975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210086711.6A Active CN102619844B (en) | 2012-03-28 | 2012-03-28 | Locking device with set spring axial force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619844B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11253676B2 (en) * | 2017-03-10 | 2022-02-22 | Hangzhou Nuo Mao Medical Technology Co., Ltd | Interventional medical device delivery system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5772373A (en) * | 1994-11-02 | 1998-06-30 | Warn Industries, Inc. | Nut and locking device |
| US5846042A (en) * | 1997-06-24 | 1998-12-08 | Sony Corporation | Fastener/shaft locking and adjustment apparatus |
| CN2481896Y (en) * | 2001-04-04 | 2002-03-13 | 陈建龙 | Locknut |
| CN201027762Y (en) * | 2007-04-24 | 2008-02-27 | 中国航空动力机械研究所 | Locking threaded sleeve with key |
| CN201705782U (en) * | 2010-04-23 | 2011-01-12 | 郑州精益达汽车零部件有限公司 | Anti-looseness trough-shaped nut |
| TWI390121B (en) * | 2010-06-21 | 2013-03-21 | Techmech Technologies Corp | Plate positioning device |
-
2012
- 2012-03-28 CN CN201210086711.6A patent/CN102619844B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102619844A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY172399A (en) | Cable clamp | |
| CN102619844B (en) | Locking device with set spring axial force | |
| CN106711845A (en) | Insulated operating rod and wiring method | |
| CN103378424A (en) | Emergency live-line processing device for high voltage joint heating | |
| CN204809753U (en) | Turn -buckle is salvageed to electric power | |
| CN204067592U (en) | A kind of earth connection conductor wire end wire clamp | |
| US20170009913A1 (en) | Edge protection bushing with integrated clamp | |
| CN204339669U (en) | Charged tight bolt tool | |
| CN207009808U (en) | A kind of concentration bus duct splicer and the transmission system using the splicer | |
| CN203549130U (en) | Fixing block for flat cable ends | |
| CN102983529B (en) | Replacing tool for quadruple composite tension insulator chains of ultra-high voltage lines | |
| CN203009695U (en) | Steel wire rope connecting device | |
| JP2012147640A (en) | Ground metal fitting | |
| CN107171273B (en) | Cable fixing head | |
| JP5172396B2 (en) | Power cable pooling eye | |
| CN104065011A (en) | Three-phase line mounting structure for pure electric car motor | |
| CN203071530U (en) | Insulator and lead firmly connecting device for electrical-network lines | |
| CN203445568U (en) | Strain clamp | |
| RU119181U1 (en) | CABLE INPUT | |
| CN203895847U (en) | Wire lifting device changing composite insulator chain of +-800 kilovolt power transmission line on live line | |
| RU119180U1 (en) | CABLE INPUT | |
| CN202431719U (en) | Protection anti-disassembling nut | |
| CN204144631U (en) | A kind of distribution transforming inspection earthing line is met an urgent need crossover tool | |
| CN205219012U (en) | Dismouting turbine rotor clutch bolt specialized tool | |
| CN107895916A (en) | A kind of Novel pull box of long lifespan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA SHANGHAI DIANWU CO Free format text: FORMER OWNER: SHANGHAI DIANWU COLLECTIVE ASSETS MANAGEMENT CO., LTD. Effective date: 20121109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121109 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Applicant after: Shanghai Electrophysics Collective Asset Management Co.,Ltd. Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation Applicant before: Shanghai Electrophysics Collective Asset Management Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |