CN101834417A - Quick double-brake self-locking type strain clamp - Google Patents
Quick double-brake self-locking type strain clamp Download PDFInfo
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- CN101834417A CN101834417A CN 201010156029 CN201010156029A CN101834417A CN 101834417 A CN101834417 A CN 101834417A CN 201010156029 CN201010156029 CN 201010156029 CN 201010156029 A CN201010156029 A CN 201010156029A CN 101834417 A CN101834417 A CN 101834417A
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- folder
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- conical tube
- tube body
- dovetail
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Abstract
The invention discloses a quick double-brake self-locking type strain clamp, which comprises a tapered tube body, a reaction spring, clamping pieces and a U-shaped bolt, wherein the clamping pieces comprise four parts in a left group and a right group; a first curve clamping piece and a second curve clamping piece are combined to form the tapered tube body and be matched with the inner wall of the tapered tube body, and a first dovetail boss is arranged at the combined tapered bottom; a third curve clamping piece and a fourth curve clamping piece are combined to form the tapered tube body and be matched with the inner wall of the tapered tube body, and a second dovetail boss is arranged at the combined tapered top; a connecting block of the clamping pieces is arranged in the middle of the two groups of clamping pieces; dovetail grooves mutually vertical are arranged at the two end surfaces of the connecting block and respectively matched with the first dovetail boss and the second dovetail boss; a tube plug is arranged at the tapered bottom of the tapered tube body; the reaction spring is arranged between the tube plug and the clamping pieces; a matched straining sleeve is arranged at the outer wall of the tapered tube body; and the U-shaped bolt passes through the matched straining cover and is fixed by a nut. The strain clamp has simple structure, small volume and light weight, and adopts a bidirectional locking structure, thus a lead wire is locked more firmly.
Description
Technical field
The invention discloses a kind of quick double-brake self-locking type strain clamp, be applied in the power industry, the wire erection strain insulator stringing terminal in defeated, the distribution overhead power line.
Background technology
At present, the strain clamp that uses on China's power circuit is to make based on the ferromagnetic material of malleable cast iron substantially, because strain clamp constitutes a closed magnetic loop around lead, under the action of alternating magnetic field that current in wire produces, in strain clamp, produce magnetic hysteresis loss and eddy current loss.Statistics shows according to investigations, the loss that is produced by gold utensil in defeated, the distribution accounts for the 0.01-0.03% of transmission line capability, though in recent years, adopted the line hardware of hydraulic in the power circuit construction, though also reduced the loss of magnetic hysteresis, eddy current, it needs to use hydraulic test and the generating equipment supporting with it in installation process, the equipment manufacturing cost height, the transportation difficulty particularly in area construction with a varied topography, is brought great difficulty to the workmen.And in a single day compacting is finished, and is non-dismountable, causes the significant wastage of gold utensil and lead easily.What is more important, the scene that completion is installed does not possess test condition, does not know whether conform with the rules requirement, and brings very big workload and operating hidden danger to operation maintenance.
Summary of the invention
Technical problem to be solved by this invention provides a kind of quick double-brake self-locking type strain clamp, and this strain clamp is simple in structure, and volume is little, in light weight, and adopts the bidirectional locking structure, and lead locking is more firm.
For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of quick double-brake self-locking type strain clamp, comprise conical tube, reaction spring, folder and U-bolt, two groups of four parts about described folder is divided into, the first curve folder, the second curve folder, the 3rd curve folder, the 4th curve folder, the first curve folder and the second curve folder become conical tube after merging, its excircle cooperates with the inwall of conical tube, is provided with the first dovetail boss at the bottom of the vertebra after it merges; The 3rd curve folder and the 4th curve folder become conical tube after merging, and its excircle cooperates with the inwall of conical tube, and the vertebra top after it merges is provided with the second dovetail boss; Be provided with the folder contiguous block in the centre of two groups of folders, the both ends of the surface of folder contiguous block are provided with orthogonal first dovetail groove and second dovetail groove, and wherein the first dovetail boss cooperates with first dovetail groove, and the second dovetail boss cooperates with second dovetail groove; At the bottom of the vertebra of conical tube, also be provided with pipe plug, and, between pipe plug and folder, be provided with reaction spring with marking closely screw; Outer wall at conical tube is provided with cooperation tension cover, and U-bolt overlaps by the cooperation tension and fixes with nut.
The inner peripheral surface of the described first curve folder, the second curve folder, the 3rd curve folder, the 4th curve folder is a curve form, and has down zigzag structure in the vertical total length direction of inner surface.
Described conical tube, folder and pipe plug all are aluminum alloy materials.
The present invention adopts two protruding, groove structures of dovetail, and vertical mutually, makes folder become 90 ° to the clamping force of lead, is bidirectional locking, and its clamping force is more even, bigger.
The periphery of four folders is a curve form, make lead in certain weight range, occur bending and deformation, the mechanical performance of lead is changed, make lead multi-point bending distortion on both direction, increase the frictional resistance that lead is extracted out, thereby reach the purpose of lead locking; Have down zigzag structure in the vertical total length direction of folder inner surface, make lead easily advance difficulty and go out, increased the frictional force of lead locking state simultaneously.
Described conical tube, folder and pipe plug are aluminum alloy materials all, make that this strain clamp is in light weight, and have antirust function.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the front view of one group of folder.
Fig. 3 is the cutaway view of the A-A of Fig. 2.
Fig. 4 is the vertical view of another group folder.
Fig. 5 is the cutaway view of the B-B of Fig. 4.
Fig. 6 is the partial enlarged drawing of Fig. 5.
Fig. 7 clamps the front view of contiguous block for part.
Fig. 8 clamps the mansion view of contiguous block for part.
Fig. 9 clamps the left view of contiguous block for part.
Embodiment
As shown in Figure 1, a kind of quick double-brake self-locking type strain clamp, comprise conical tube 1, reaction spring 5, folder and U-bolt 8, described folder is divided into left and right two groups of four parts, the first curve folder 11, the second curve folder 12, the 3rd curve folder 21, the 4th curve folder 22, shown in Fig. 2,3, after merging, the first curve folder 11 and the second curve folder 12 become conical tube, its excircle cooperates with the inwall of conical tube 1, is provided with the first dovetail boss 13 at the bottom of the vertebra after it merges; Shown in Fig. 4,5, after merging, the 3rd curve folder 21 and the 4th curve folder 22 become conical tube, and its excircle cooperates with the inwall of conical tube 1, and the vertebra top after it merges is provided with the second dovetail boss 23; Be provided with folder contiguous block 3 in the centre of two groups of folders, as shown in Figs. 7-9, the both ends of the surface of folder contiguous block 3 are provided with orthogonal first dovetail groove 31 and second dovetail groove 32, as shown in Figure 1, wherein the first dovetail boss 13 cooperates with first dovetail groove 31, and the second dovetail boss 23 cooperates with second dovetail groove 32; At the bottom of the vertebra of conical tube 1, also be provided with pipe plug 6, and fixing with marking closely screw 7, between pipe plug 6 and folder, be provided with reaction spring 5; Be provided with at the outer wall of conical tube 1 and cooperate tension cover 9, U-bolt 8 is by cooperating tension cover 9 and fixing with nut.
Shown in Fig. 2 to 6, the inner peripheral surface of the described first curve folder 11, the second curve folder 12, the 3rd curve folder 21, the 4th curve folder 22 is a curve form, and has down zigzag 10 structures in the vertical total length direction of inner surface.
Described conical tube 1, folder and pipe plug 6 all are aluminum alloy materials.
The operation principle of quick double-brake self-locking type strain clamp: lead one end is inserted in the conical tube with the external force of 3.5-4.5kgf, move in propulsive force effect lower clamping piece direction at the bottom of vertebra, the internal diameter of two groups of folders increases simultaneously, reaction spring 5 compressions in the pipe, this moment, lead entered in the folder, its lead is falling can only to advance under the effect of zigzag 10, be difficult for withdrawing from, when lead stretches into sufficient length, external force stops, and reaction spring 5 discharges, and folder is rebounded, folder internal diameter under the effect of conical tube 1 diminishes lead is clamped, more firm for what lead was clamped, can be with lead and U-bolt 8 pulling round about simultaneously, along with the continuous increase of pulling force, the radially grip force of folder then increases thereupon, promptly finishes the work of locking lead.
Claims (3)
1. quick double-brake self-locking type strain clamp, comprise conical tube (1), reaction spring (5), folder and U-bolt (8), it is characterized in that: two groups of four parts about described folder is divided into, the first curve folder (11), the second curve folder (12), the 3rd curve folder (21), the 4th curve folder (22), the first curve folder (11) and the second curve folder (12) become conical tube after merging, its excircle cooperates with the inwall of conical tube (1), is provided with the first dovetail boss (13) at the bottom of the vertebra after it merges; The 3rd curve folder (21) and the 4th curve folder (22) become conical tube after merging, and its excircle cooperates with the inwall of conical tube (1), and the vertebra top after it merges is provided with the second dovetail boss (23); Be provided with folder contiguous block (3) in the centre of two groups of folders, the both ends of the surface of folder contiguous block (3) are provided with orthogonal first dovetail groove (31) and second dovetail groove (32), wherein the first dovetail boss (13) cooperates with first dovetail groove (31), and the second dovetail boss (23) cooperates with second dovetail groove (32); At the bottom of the vertebra of conical tube (1), also be provided with pipe plug (6), and fixing with marking closely screw (7), between pipe plug (6) and folder, be provided with reaction spring (5); Outer wall at conical tube (1) is provided with cooperation tension cover (9), and U-bolt (8) overlaps (9) by the cooperation tension and fixes with nut.
2. quick double-brake self-locking type strain clamp according to claim 1, it is characterized in that: the inner peripheral surface of the described first curve folder (11), the second curve folder (12), the 3rd curve folder (21), the 4th curve folder (22) is a curve form, and has down zigzag (10) structure in the vertical total length direction of inner surface.
3. quick double-brake self-locking type strain clamp as claimed in claim 1 or 2, it is characterized in that: described conical tube (1), folder and pipe plug (6) all are aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101560290A CN101834417B (en) | 2010-04-27 | 2010-04-27 | Quick double-brake self-locking type strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101560290A CN101834417B (en) | 2010-04-27 | 2010-04-27 | Quick double-brake self-locking type strain clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101834417A true CN101834417A (en) | 2010-09-15 |
| CN101834417B CN101834417B (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101560290A Active CN101834417B (en) | 2010-04-27 | 2010-04-27 | Quick double-brake self-locking type strain clamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN101834417B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361303A (en) * | 2011-06-14 | 2012-02-22 | 营口新盛世输变电设备有限公司 | Quick self-locking aluminum alloy strain wire clamp |
| CN105952755A (en) * | 2016-06-24 | 2016-09-21 | 国网辽宁省电力有限公司葫芦岛供电公司 | U-shaped elastic screw for suspension insulator hanging point of transmission line tower |
| CN108321747A (en) * | 2018-05-10 | 2018-07-24 | 王文让 | A kind of novel gripper and its application method |
| CN110799437A (en) * | 2017-04-21 | 2020-02-14 | 豪倍公司 | Wedge-shaped cable clamp |
| CN111181109A (en) * | 2020-03-10 | 2020-05-19 | 云南电网有限责任公司 | Bolt-free wedge-shaped strain clamp |
| CN111682480A (en) * | 2020-06-16 | 2020-09-18 | 李淑军 | Self-locking strain clamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001128325A (en) * | 1999-10-28 | 2001-05-11 | Sanwa Tekki Corp | Wire protective cover of wire anchor clamp |
| CN2582237Y (en) * | 2002-09-30 | 2003-10-22 | 叶军旭 | Tension-resistance cleat for transmission line |
| CN2627703Y (en) * | 2003-06-28 | 2004-07-21 | 孙洪仁 | Aluminum alloy insulated wire strain clamp |
-
2010
- 2010-04-27 CN CN2010101560290A patent/CN101834417B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001128325A (en) * | 1999-10-28 | 2001-05-11 | Sanwa Tekki Corp | Wire protective cover of wire anchor clamp |
| CN2582237Y (en) * | 2002-09-30 | 2003-10-22 | 叶军旭 | Tension-resistance cleat for transmission line |
| CN2627703Y (en) * | 2003-06-28 | 2004-07-21 | 孙洪仁 | Aluminum alloy insulated wire strain clamp |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361303A (en) * | 2011-06-14 | 2012-02-22 | 营口新盛世输变电设备有限公司 | Quick self-locking aluminum alloy strain wire clamp |
| CN102361303B (en) * | 2011-06-14 | 2014-06-18 | 营口新盛世输变电设备有限公司 | Quick self-locking aluminum alloy strain wire clamp |
| CN105952755A (en) * | 2016-06-24 | 2016-09-21 | 国网辽宁省电力有限公司葫芦岛供电公司 | U-shaped elastic screw for suspension insulator hanging point of transmission line tower |
| CN110799437A (en) * | 2017-04-21 | 2020-02-14 | 豪倍公司 | Wedge-shaped cable clamp |
| CN110799437B (en) * | 2017-04-21 | 2021-01-22 | 豪倍公司 | Wedge-shaped cable clamp |
| CN108321747A (en) * | 2018-05-10 | 2018-07-24 | 王文让 | A kind of novel gripper and its application method |
| CN111181109A (en) * | 2020-03-10 | 2020-05-19 | 云南电网有限责任公司 | Bolt-free wedge-shaped strain clamp |
| CN111682480A (en) * | 2020-06-16 | 2020-09-18 | 李淑军 | Self-locking strain clamp |
| CN111682480B (en) * | 2020-06-16 | 2021-06-29 | 江苏江东电力器材有限公司 | Self-locking strain clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101834417B (en) | 2012-05-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| ASS | Succession or assignment of patent right |
Owner name: STATE GRID LIAONING ELECTRIC POWER CO., LTD. YINGK Effective date: 20140630 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140630 Address after: 115007 Bayuquan Yingkou Green Industrial Zone Yingkou Liaoning new age power transmission and Transformation Equipment Co., Ltd. Patentee after: Wang Jimin Patentee after: State Grid Liaoning Electric Power Co., Ltd. Yingkou Power Supply Company Address before: 115007 Bayuquan Yingkou Green Industrial Zone Yingkou Liaoning new age power transmission and Transformation Equipment Co., Ltd. Patentee before: Wang Jimin |