CN205304088U - Join in marriage net twine way and abandon line guarantor lever apparatus with multi -direction overload protection - Google Patents
Join in marriage net twine way and abandon line guarantor lever apparatus with multi -direction overload protection Download PDFInfo
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- CN205304088U CN205304088U CN201520987904.8U CN201520987904U CN205304088U CN 205304088 U CN205304088 U CN 205304088U CN 201520987904 U CN201520987904 U CN 201520987904U CN 205304088 U CN205304088 U CN 205304088U
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Abstract
The utility model provides a join in marriage net twine way and abandon line guarantor lever apparatus with multi -direction overload protection, includes the wire support, it includes: two symmetry axis are to butt joint casing (6), and the boss is described for pipe form, outer port inner chamber is equipped with the step, combines to be equipped with on the end excircle for the butt joint ear to the casing, and it has a connecting hole to go up ear form boss, and two casings combine to rectify the below division has the circular port, two bilateral symmetry's movable column (4), for the tertiary step shaft form that increases in proper order, path duan bianzhi pitch diameter section department is equipped with through arc -shaped surface (17), and it has radial big -end -up ladder groove to open on the big terminal surface, the big -end -up step shaft for erectting is described in one davit (13), and the lower extreme is equipped with the double -layered end of a thread (2) that are used for the centre gripping wire, two movable column main aspects are relatively installed in two casings to with pressing from both sides in two movable column main aspects vats two movable column's path duan bianzhi pitch diameter section transition curved face department cover flexible circle (7) on the davit. The utility model discloses as long as making a concerted effort to surpass design condition, load just can realize abandoning line guarantor pole mesh.
Description
Technical field
This utility model relates to a kind of line of abandoning for electrical network distribution line when being subject to the natural disaster of off-design conditions and protects lever apparatus, especially relates to a kind of distribution line with multi-direction overload protection and abandons line guarantor's lever apparatus.
Background technology
In prior art, abandon line guarantor's lever apparatus when existing distribution line is by the natural disaster of off-design conditions, but it (blows off to aerial condutor such as billboard just for single Impact direction or the trees of periphery fracture to topple over and are pressed onto on aerial condutor or the load in direction along the line that adjacent electric pole was subject to because of soil erosion time of falling bar; Or electric pole and wire are when being limited mainly by the situation of wind load action, wind load horizontal vertical load when its load all acts on electric pole when electric pole direction) line of abandoning when being subject to the load of off-design conditions protects lever apparatus. And in electric pole practical work process; the load effect of multiple directions can be subject to; both it had been subject to such as electric pole the direction along the line load caused such as toppling over because span difference, icing, trees fracture; how electric pole being protected when being subject to again the wind load being perpendicular to electric pole direction, prior art institute extracting method also has certain limitation in practicality.
Utility model content
Technical problem to be solved in the utility model; just it is to provide a kind of distribution line with multi-direction overload protection and abandons line guarantor's lever apparatus; realizing distribution line when being subject to multidirectional load effect, as long as load is made a concerted effort, off-design conditions can be realized as abandoning line and protects bar purpose.
Solving above-mentioned technical problem, the technical scheme of this utility model is as follows:
A kind of distribution line with multi-direction overload protection is abandoned line and is protected lever apparatus, it is characterized in that: including interconnective insulator connecting portion and wire support, described wire support includes again:
Two symmetrical housings 6, housing is circular tube shaped, two housings axially docks, the external port inner chamber of housing is provided with step, binding end cylindrical is provided with docking ear boss, the ear boss of surface is provided with the connecting hole being connected with described insulator connecting portion, has circular port connection pipe inner chamber immediately below two housings binding end;
Two symmetrical mobile posts 4, for the three grades of ladder shaft-like increased successively, path section fades to central diameter section place and is provided with transition circle cambered surface 17, path section diameter is corresponding to the external port internal diameter of described housing, path section fades to the shaft shoulder step corresponding to described housing external port inner chamber of central diameter section, having up big and down small step trough radially on large end face, vat 19 is that triangle, sulculus are for semicircle;
A piece davit 13, shape is the up big and down small multidiameter erect, and lower end is provided with the clamp head 2 for clamping wire 3;
Described two move post 4 and hold greatly and be relatively arranged in described two housings 6, and described davit 13 upper end is clipped in two moves post 4 and hold greatly in triangle vat, and the two path sections moving post 4 fade to central diameter section transition cambered surface 17 place and are cased with elastic ring 7.
On the basis of above-mentioned basic model, this utility model can also have following various modified models:
Described insulator connecting portion includes: two the porcelain-arm insulator U-shaped anchor ears 10 connected with connector, and connect the transition piece 16 of ear boss on U-shaped anchor ear 10 and described wire support respectively, the structure of transition piece 16 is: a horizontal plate, its end face is provided with the orifice plate erect upward, bottom surface is provided with two pieces of downwardly extending orifice plates of symmetry, up-hole plate face and orifice plate face phase mutual one install included angle A, and the best is 45 degree.
Described clamp head 2 is the cable clamp structure being connected as a single entity with davit 13 lower end, and on its composition surface, processing has radially wire casing, and the degree of depth is less than wire 3 diameter, and wire 3 is positioned in wire casing and wire clamp, wire 3 and davit 13 is connected by screw 1.
Described mobile post 4 miner diameter end processing has the draw-in groove installing elastic scheibe 5, and what path section faded to central diameter section transition cambered surface 17 is evenly distributed in 2 or 3 planes 18.
In described housing 6 inner hole surface, processing has size two to install the groove of elastic seal ring, and loads big elastic seal ring 14 and small sealing ring 15, loads grease in the space at big elastic seal ring 14 and small sealing ring 15 interval.
Beneficial effect: the load when being subject to multidirectional load effect makes a concerted effort to slide in mobile post 4 central diameter section beyond elastic ring 7 because of stress deformation as long as this utility model can realize distribution line, it becomes possible to realizes abandoning line and protects bar purpose.
Accompanying drawing explanation
Fig. 1 is this utility model composition with broken section and annexation schematic diagram;
Fig. 2 is the top view of Fig. 1;
Fig. 3 a is the front view of transition piece 16 in Fig. 1;
Fig. 3 b is the left view (above section view) of Fig. 3 a;
Fig. 3 c is the upward view of Fig. 3 b;
Fig. 4 is the scheme of erection of part 4, part 13 and wire etc.;
Fig. 5 is the top view of Fig. 4.
In figure: 1 is clamp head screw, and 2 is clamp head, and 3 is wire, 4 is mobile post, 5 is elastic scheibe, and 6 is housing, and 7 is elastic ring, 8 is connecting bolt 1 assembly, and 9 is connecting bolt 2 assembly, and 10 is U-shaped anchor ear, 11 is connecting bolt 3 assembly, and 12 is porcelain-arm insulator, and 13 is davit, 14 is big elastic seal ring, and 15 is small sealing ring, and 16 is transition piece, 17 transition shoulders, 18 is plane, and 19 is V-groove.
Detailed description of the invention
Referring to Fig. 1 to Fig. 5, the distribution line with multi-direction overload protection of the present utility model is abandoned line and is protected lever apparatus embodiment, including interconnective insulator connecting portion and wire support.
Referring to Fig. 1, Fig. 2 and Fig. 3, insulator connecting portion includes: two the porcelain-arm insulator U-shaped anchor ears 10 connected with connector, and connects the transition piece 16 of ear boss on U-shaped anchor ear 10 and wire support respectively.
The structure of transition piece 16 is: a horizontal plate, and its end face is provided with the orifice plate erect upward, bottom surface is provided with two pieces of downwardly extending orifice plates of symmetry, and up-hole plate face and orifice plate face phase mutual one install angle 45 degree.
Wire support then includes:
Two symmetrical housings 6, housing is circular tube shaped, two housings axially docks, the external port inner chamber of housing is provided with step, binding end cylindrical is provided with docking ear boss, the ear boss of surface is provided with the connecting hole being connected with insulator connecting portion, has circular port connection pipe inner chamber immediately below two housings binding end;
Two symmetrical mobile posts 4, for the three grades of ladder shaft-like increased successively, path section fades to central diameter section place and is provided with transition circle cambered surface 17, path section diameter is corresponding to the external port internal diameter of housing, path section fades to the shaft shoulder step corresponding to described housing external port inner chamber of central diameter section, having up big and down small step trough radially on large end face, vat 19 is that triangle, sulculus are for semicircle;
A piece davit 13, shape is that the centre erect is little, and the multidiameter that two is big, lower end is provided with the clamp head 2 for clamping wire 3.
Two move post 4 holds greatly and is relatively arranged in two housings 6, and davit 13 upper end is clipped in two moves post 4 and hold greatly in triangle vat, and the two path sections moving post 4 fade to central diameter section transition cambered surface 17 place and are cased with elastic ring 7.
Clamp head 2 is cylindrical structural, and on its composition surface being connected with davit 13 lower end, processing has axial wire casing, and the degree of depth is less than wire 3 diameter, and wire 3 is positioned in wire casing and wire clamp, wire 3 and davit 13 is connected by screw 1; Mobile post 4 miner diameter end processing has the draw-in groove installing elastic scheibe 5, and what path section faded to central diameter section transition cambered surface 17 is evenly distributed in 2 or 3 planes 18; In housing 6 inner hole surface, processing has size two to install the groove of elastic seal ring, and loads big elastic seal ring 14 and small sealing ring 15, loads grease in the space at big elastic seal ring 14 and small sealing ring 15 interval.
Elastic ring 7 is one have certain elastic part, it is possible to selecting different materials, cross sectional shape, size, diameter etc. to change its intensity size, it is weak link major part of the present utility model.
Relative two faces 18 are processed at the step transition place of mobile post 4, also 3 faces can along the circumferential direction be processed, when step transition place is cased with elastic ring 7, elastic ring 7 does not contact with face 18, and have a room, it is provided that and the deformation space of elastic ring 7, can effectively add the radial-deformation of elastic ring 7, the difference in diameter at transition shoulder 17 place of post 4 can be moved greatly, improve the job stability of elastic ring 7.
Line function abandoned by guarantor's bar is dropped from the V-type clamping hole of mobile post 4 by davit 13 to realize, this process is: wire is subject to (being calculated according to the allowable load that electric pole tolerance limit load is converted on plain conductor) when the load in direction along the line reaches setting value, load is delivered on mobile post 4 by davit 13, effect at the knuckle at transition shoulder 17 place, elastic ring 7 is realized deformation by an outward expansion force, elastic ring 7 is slid onto on the middle face of cylinder at transition shoulder 17 place, owing to the mobile post 4 of opposite side is subject to the position-limiting action of elastic scheibe 5, moving left and right post 4 just separately allows davit 13 drop, loosen the tension force of wire 3, protection electric pole.
Having one with porcelain-arm insulator 12 when core component in this utility model is installed and install included angle A (generally desirable 45 degree), this angle can be ensured by the structure of the transition piece 16 shown in Fig. 3.
As shown in Figure 4, if now, billboard blows off to aerial condutor or the trees of periphery fracture topples over and is pressed onto on aerial condutor or adjacent electric pole is because of soil erosion time of falling bar, a bigger pulling force effect it is subject on the left of wire 3, it makes a concerted effort for Fa with right side pulling force, it is additionally subjected to wind load action, if wind load horizontal vertical its load when electric pole direction all acts on electric pole, electric pole stress is maximum, active force now is Fb, Fa and Fb makes a concerted effort for Fc, in theory should using Fc as abandon line protect bar time design load, change multiformity and complexity due to Fa and Fb, this utility model designs with stress extreme case:
As Fb=0, namely when electric pole and wire are limited mainly by abnormal conditions effect, blow off to aerial condutor such as billboard or the trees of periphery fracture and topple over that to be pressed onto aerial condutor first-class, electric pole is limited only by the pulling force effect Fa in a direction along the line, Fa is FaSIN (90 �� of-A) along the component in the axis vertical line direction of mobile post 4, the power of the direction passes through core component, transition piece 16, two U-shaped anchor ears 10, connecting bolt 2 assembly 9, connecting bolt 3 assembly 11 and porcelain-arm insulator 12 pass on electric pole, and the axis direction component of the mobile post 4 in edge is FaCOS (90 �� of-A), the power of the direction acts on elastic ring 7, the structure and material performance parameter that can pass through to arrange elastic ring 7 realizes abandoning line guarantor's bar function.
Take A=45 ��, then FaCOS (90 �� of-A)=0.71Fa, as long as namely converting 71% of allowable load on plain conductor according to electric pole tolerance limit load to carry out the designing and calculating of elastic ring 7, make elastic ring 7 can be slid onto on the big face of cylinder at step surface 17 place with this load, can realize abandoning line and protect bar function.
In like manner, as Fa=0, when electric pole and wire are limited mainly by the situation of wind load action, wind load horizontal vertical is when electric pole direction, electric pole is limited only by a pulling force effect Fb vertical with direction along the line, Fb is FbSIN (A) along the component in the axis vertical line direction of mobile post 4, the power of the direction passes through core component, transition piece 16, two U-shaped anchor ears 10, connecting bolt 2 assembly 9, connecting bolt 3 assembly 11 and porcelain-arm insulator 12 pass on electric pole, and the axis direction component of the mobile post 4 in edge is FbCOS (A), take A=45 ��, also FbCOSA=0.71Fb can be drawn, as long as namely converting 71% of allowable load on plain conductor according to electric pole tolerance limit load to carry out the designing and calculating of elastic ring 7, make elastic ring 7 can be slid onto on the big face of cylinder at step surface 17 place with this load, can realize abandoning line and protect bar function.
And under other stressing conditions, the Fc axis direction component along mobile post 4 of making a concerted effort, as long as less than 71% of the allowable load in conversion to plain conductor, can realize abandoning line and protect bar function, relatively safe and reliable.
Owing to mobile post 4 had both been subject to power effect in the axial direction, it is also affected by the power effect in vertical axis direction, and the power on vertical axis direction can cause the friction of the external cylindrical surface of mobile post 4 and the inner cylinder face of housing 6, for the impact that reduces friction, on housing 6 inner cylinder face, processing has the groove installing elastic seal ring, and load big elastic seal ring 14 and small sealing ring 15, the space at big elastic seal ring 14 and small sealing ring 15 interval loads grease, ensure that the lubrication of each relative motion part, reduce friction, improve the accuracy and reliability of abandoning line guarantor's bar.
During assembling, first in the endoporus of housing 6, load big elastic seal ring 14 and small sealing ring 15, elastic ring 7 is inserted in step place along mobile post 4 small end, and smear grease at step place, it is then charged in housing 6 endoporus, block with elastic scheibe 5, after clamping davit 13 followed by the V-type face 19 of two mobile posts 4, with connecting bolt 1 assembly 8 two housings 6 are connected as a single entity and are namely assembled into core component of the present utility model.
Claims (5)
1. the distribution line with multi-direction overload protection abandons line guarantor's lever apparatus, it is characterized in that: including interconnective insulator connecting portion and wire support, described wire support includes again:
Two symmetrical housings (6), housing is circular tube shaped, two housings axially docks, the external port inner chamber of housing is provided with step, binding end cylindrical is provided with docking ear boss, the ear boss of surface is provided with the connecting hole being connected with described insulator connecting portion, has circular port connection pipe inner chamber immediately below two housings binding end;
Two symmetrical mobile posts (4), for the three grades of ladder shaft-like increased successively, path section fades to central diameter section place and is provided with transition circle cambered surface (17), path section diameter is corresponding to the external port internal diameter of described housing, path section fades to the shaft shoulder step corresponding to described housing external port inner chamber of central diameter section, having up big and down small step trough radially on large end face, vat (19) is triangle;
A piece davit (13), shape is the up big and down small multidiameter erect, and lower end is provided with the clamp head (2) for clamping wire (3);
Described two move the big end of post (4) and are relatively arranged in described two housings (6), and described davit (13) upper end is clipped in two moves in post (4) greatly end triangle vat, the two path sections moving post (4) fade to central diameter section transition cambered surface (17) place and are cased with elastic ring (7).
2. the distribution line with multi-direction overload protection according to claim 1 is abandoned line and is protected lever apparatus; it is characterized in that: described insulator connecting portion includes: two porcelain-arm insulators U-shaped anchor ear (10) connected with connector; and connect the transition piece (16) of ear boss on U-shaped anchor ear (10) and described wire support respectively; the structure of transition piece (16) is: a horizontal plate; its end face is provided with the orifice plate erect upward, bottom surface is provided with two pieces of downwardly extending orifice plates of symmetry, and up-hole plate face and orifice plate face phase mutual one install angle 45 degree.
3. the distribution line with multi-direction overload protection according to claim 2 is abandoned line and is protected lever apparatus; it is characterized in that: described clamp head (2) is the cable clamp structure being connected as a single entity with davit (13) lower end; on its composition surface, processing has radially wire casing; the degree of depth is less than wire (3) diameter, and wire (3) is positioned in wire casing and wire clamp, wire (3) and davit (13) is connected by screw (1).
4. the distribution line with multi-direction overload protection according to claim 3 is abandoned line and is protected lever apparatus; it is characterized in that: described mobile post (4) miner diameter end processing has the draw-in groove of installation elastic scheibe (5), what path section faded to central diameter section transition cambered surface (17) is evenly distributed in 2 or 3 planes (18).
5. the distribution line with multi-direction overload protection according to claim 4 is abandoned line and is protected lever apparatus; it is characterized in that: in described housing (6) inner hole surface, processing has size two to install the groove of elastic seal ring; and load big elastic seal ring (14) and small sealing ring (15), the space at big elastic seal ring (14) and small sealing ring (15) interval loads grease.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987904.8U CN205304088U (en) | 2015-12-01 | 2015-12-01 | Join in marriage net twine way and abandon line guarantor lever apparatus with multi -direction overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520987904.8U CN205304088U (en) | 2015-12-01 | 2015-12-01 | Join in marriage net twine way and abandon line guarantor lever apparatus with multi -direction overload protection |
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| Publication Number | Publication Date |
|---|---|
| CN205304088U true CN205304088U (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520987904.8U Active CN205304088U (en) | 2015-12-01 | 2015-12-01 | Join in marriage net twine way and abandon line guarantor lever apparatus with multi -direction overload protection |
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| CN (1) | CN205304088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390987A (en) * | 2015-12-01 | 2016-03-09 | 广东电网有限责任公司电力科学研究院 | Wire-abandoning rod-protecting device with multidirectional overload protection of distribution network lines |
-
2015
- 2015-12-01 CN CN201520987904.8U patent/CN205304088U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390987A (en) * | 2015-12-01 | 2016-03-09 | 广东电网有限责任公司电力科学研究院 | Wire-abandoning rod-protecting device with multidirectional overload protection of distribution network lines |
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| C14 | Grant of patent or utility model | ||
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