CN203813053U - Constant grip creep-resistant parallel-groove double wire clamp - Google Patents
Constant grip creep-resistant parallel-groove double wire clamp Download PDFInfo
- Publication number
- CN203813053U CN203813053U CN201420218079.0U CN201420218079U CN203813053U CN 203813053 U CN203813053 U CN 203813053U CN 201420218079 U CN201420218079 U CN 201420218079U CN 203813053 U CN203813053 U CN 203813053U
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- China
- Prior art keywords
- shaped part
- wire
- wire clamp
- grip
- shaped element
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- Expired - Fee Related
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Abstract
The utility model discloses a constant grip creep-resistant parallel-groove double wire clamp, comprising an upper U-shaped element (2) with an elastic function and a rigid lower U-shaped element (1). A bolt (4) passes through the upper U-shaped element (2) with the elastic function and the rigid lower U-shaped element (1), and is fastened by a nut on an end. The lower surface of the upper U-shaped element (2) and the upper surface of the lower U-shaped element (1) are respectively provided with two U-shaped trunkings. The top end of the trunking of the upper U-shaped element (2) is connected with a grip positioning sheet (5) used to determine whether the wire clamp is installed in place. The top end of the other trunking of the upper U-shaped element (2) is provided with a positioning lug (6). The cross section of the upper U-shaped element (2) is approximate to a wave shape. The wire clamp is advantaged in that the wire clamp can automatically compensate deformation of wire diameters caused by heat-expansion and cold-contraction, and creep resistance, grip strength of the wire clamp in an installation process would not influenced by human factors, thereby ensuring installation quality, and meanwhile specifications and models are reduced, and the wire clamp can be used repeatedly, thereby reducing production cost.
Description
Technical field
The utility model relates to the wire clamp connecting for power engineering wire, specifically a kind of constant grip creep resistant ditch two-wire folder.
Background technology
When tradition connecting clip is widely used in aerial line and continues, owing to being connected wire, when ampacity changes, can expand with heat and contract with cold, and under certain pressure and temperature action, extend creep must occur in time, concerning aluminum conductor, show as wire and produce deformation, and traditional connecting clip and wire are for being rigidly connected, when wire generation creep, there is no compensate function, its consequence is that grip of clamp reduces, contact resistance increases, and makes the overheated even ablation wire clamp of wire clamp temperature rising, leads to electric power accident.Although improved cable clamp has solved creep resisting problem on market, specifications and models are on the high side, to type selecting, brought inconvenience, and cost is higher.
Following two patents are the improvement project of this case applicant to existing wire clamp, but have defect separately:
Application number is 2012105390620, and name is called " constant grip creep resistant parallel groove clamp ", discloses that a kind of " between piece under pressure, upper casting die, through stainless steel, tightening screw rod punching connects; Piece under pressure is the U-shaped electric conductor with wire casing, and upper casting die is the hollow electric conductor with spring function; There is wire casing the top of U-shaped electric conductor, the hollow electric conductor below with spring function " wire clamp; this wire clamp determines that by the shape of casting die thereon its consumptive material is more; cost is higher; in addition; the thickness of upper casting die hollow parts can only be controlled at 2.5-3mm, comparatively weak, if surpass this scope; go up casting die and can lose elastic force, cannot keep constant grip.
Application number is 2012207263165, name is called " constant grip creep resistant jaw type wire clamp ", disclose a kind of " by the lower U-shaped part of rigid structure, the upper U-shaped part with spring function, electric conductor forms, top, lower U-shaped part one end, there is wire casing below, upper U-shaped part one end, electric conductor is upper, between lower U-shaped part " wire clamp, this wire clamp is owing to adopting unconventional shape, its cost is high, exist a substantial defect to be simultaneously, in upper U-shaped part 2 when there is elastic deformation, can be subject to the impact of screw rod 4, cause this technical scheme to be in fact difficult to reach the technique effect of expection.
Utility model content
The purpose of this utility model is for above-mentioned present situation, design a kind of constant grip creep resistant ditch two-wire folder, this wire clamp energy auto-compensation expands with heat and contract with cold because wire has and has overcome creep and causes wire diameter generation deformation situation, can when wire clamp is installed, automatically measure the size of grip again simultaneously.These wire clamp specifications and models are few, and covering scope is wide, and production cost is low and can reuse.
A kind of constant grip creep resistant ditch two-wire folder, comprise and there is U-shaped part 1 under the upper U-shaped part 2 of spring function and rigidity, bolt 4 is through having under the upper U-shaped part 2 of spring function and rigidity U-shaped part 1 and at one end using fastening nuts, the lower surface of described upper U-shaped part 2, the upper surface of lower U-shaped part 1 is respectively equipped with two U-shaped wire casings, one wire casing top of described upper U-shaped part 2 is connected with the grip spacer 5 for judging whether wire clamp is in place, another wire casing top of upper U-shaped part 2 is provided with locating convex block 6, when wire clamp installation torsion puts in place, the eave tile of grip spacer 5 drops on the outside of locating convex block 6 and is closely connected with locating convex block 6.The cross section of described upper U-shaped part 2 is the waveform of approximate M; Upper U-shaped part 2, under the effect of bolt 4, can inwardly shrink certain distance, and grip spacer 5 is utilized.
Described upper U-shaped part 2 is made for having flexible aluminium alloy.
Distance between two wire casing axis of described upper U-shaped part 2 is greater than the distance between two wire casing axis of lower U-shaped part 1.
Axisymmetricly and slightly outward-dipping respectively, the angle between two wire casings is obtuse angle to two wire casings of described lower U-shaped part 1.
The advantage of the utility model constant grip creep resistant ditch two-wire folder is: the utility model solved wire because of expand with heat and contract with cold and creep to cause wire clamp lax, cause the problem of contact resistance increase; Can auto-compensation because wire expands with heat and contract with cold and overcomes the situation that creep causes wire diameter generation deformation, and be provided with grip spacer.The grip that wire clamp produces in installation process can not be subject to the impact of human factor, has guaranteed installation quality.Reduce specifications and models simultaneously, and can reuse, reduced product cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model constant grip creep resistant ditch two-wire folder.
Fig. 2 is the stereogram of the utility model constant grip creep resistant ditch two-wire folder.
In figure, 1 is lower U-shaped part, and 2 is upper U-shaped part, and 3 is wire, and 4 is bolt, and 5 is grip spacer, and 6 is locating convex block.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described: as Fig. 1, shown in Fig. 2, constant grip creep resistant ditch two-wire folder, comprise and there is U-shaped part 1 under the upper U-shaped part 2 of spring function and rigidity, bolt 4 is through having under the upper U-shaped part 2 of spring function and rigidity U-shaped part 1 and at one end using fastening nuts, the lower surface of described upper U-shaped part 2, the upper surface of lower U-shaped part 1 is respectively equipped with the two U-shaped wire casings that are symmetrical in bolt 4, one wire casing top of described upper U-shaped part 2 is connected with the grip spacer 5 for judging whether wire clamp is in place, another wire casing top of upper U-shaped part 2 is provided with locating convex block 6, when wire clamp installation torsion puts in place, the eave tile of grip spacer 5 drops on the outside of locating convex block 6 and is closely connected with locating convex block 6.The cross section of described upper U-shaped part 2 is the waveform of approximate M.Upper U-shaped part 2, under the effect of bolt 4, can inwardly shrink certain distance, and grip spacer 5 is utilized.
Described upper U-shaped part 2 is made for forging aluminium alloy.
Distance between two wire casing axis of described upper U-shaped part 2 is greater than the distance between two wire casing axis of lower U-shaped part 1.
Axisymmetricly and slightly outward-dipping respectively, the angle between two wire casings is obtuse angle to two wire casings of described lower U-shaped part 1.
The utility model is achieved in that while installing, to be connected wire 3 and be placed in wire casing, tight a bolt and 4 make the 1 pair of wire of upper and lower U-shaped part produce grip, when upper U-shaped part 2 is subject to bolt 4 downward pulling force, upper U-shaped part 2 shrinks elastic deformation occurs to voussoir inner side, and grip spacer 5 falls from locating convex block 6 tops of upper U-shaped part 2, and eave tile is fallen locating convex block 6 outsides of U-shaped part 2, reach best grip state, represent to be in place.
Because upper U-shaped part 2 has spring function, when wire expands with heat and contract with cold or creep occurs causes wire diameter generation deformation, there is the upper U-shaped 2 of spring function by its wire diameter deformation of auto-compensation, thereby reach the object of reliable connection.During dismounting, unclamp screw rod 4 elasticity and discharge, grip spacer 5 lifts and will get back to original position, and wire clamp is reusable.
Claims (4)
1. a constant grip creep resistant ditch two-wire folder, it is characterized in that: comprise there is spring function upper U-shaped part (2) with rigidity under U-shaped part (1), bolt (4) through the upper U-shaped part with spring function (2) with rigidity under U-shaped part (1) and at one end use fastening nuts, described upper U-shaped part lower surface, lower U-shaped part upper surface (1) is (2) respectively equipped with two U-shaped wire casings, a described upper U-shaped part wire casing top is (2) connected with for judging grip spacer that whether wire clamp be in place (5), and (6) upper U-shaped part another wire casing top is (2) provided with locating convex block; When wire clamp is installed torsion and put in place, grip spacer eave tile (5) drops on outside (6) of locating convex block and is (6) closely connected with locating convex block; Described upper U-shaped part cross section is (2) the waveform of approximate M.
2. constant grip creep resistant as claimed in claim 1 ditch two-wire folder, is characterized in that: (2) described upper U-shaped part is made for having flexible aluminium alloy.
3. constant grip creep resistant as claimed in claim 1 ditch two-wire folder, is characterized in that: the distance between described upper U-shaped part two wire casing axis is (2) greater than the distance between lower U-shaped part two wire casing axis (1).
4. constant grip creep resistant as claimed in claim 1 ditch two-wire folder, is characterized in that: axisymmetricly and slightly outward-dipping respectively, the angle between two wire casings is obtuse angle to described lower U-shaped part two wire casings (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420218079.0U CN203813053U (en) | 2014-04-30 | 2014-04-30 | Constant grip creep-resistant parallel-groove double wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420218079.0U CN203813053U (en) | 2014-04-30 | 2014-04-30 | Constant grip creep-resistant parallel-groove double wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813053U true CN203813053U (en) | 2014-09-03 |
Family
ID=51451769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420218079.0U Expired - Fee Related CN203813053U (en) | 2014-04-30 | 2014-04-30 | Constant grip creep-resistant parallel-groove double wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813053U (en) |
-
2014
- 2014-04-30 CN CN201420218079.0U patent/CN203813053U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20200430 |