CN202978094U - Bidirectional telescopic double insulator string changer - Google Patents
Bidirectional telescopic double insulator string changer Download PDFInfo
- Publication number
- CN202978094U CN202978094U CN 201220570530 CN201220570530U CN202978094U CN 202978094 U CN202978094 U CN 202978094U CN 201220570530 CN201220570530 CN 201220570530 CN 201220570530 U CN201220570530 U CN 201220570530U CN 202978094 U CN202978094 U CN 202978094U
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- Prior art keywords
- ratchet
- insulator string
- string
- connecting rod
- shaped
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- 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.)
- Expired - Lifetime
Links
- 239000012212 insulator Substances 0.000 title claims abstract description 38
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Electric Cable Installation (AREA)
Abstract
The utility model discloses a bidirectional telescopic double insulator string changer. Both ends of a connecting rod are respectively connected with left and right screws with positive and reverse threads through internal threads. Outer ends of left and right screws are respectively provided with left and right pull heads which are connected with holes of a connecting plate which fixes insulator strings. Two annular sleeves at the front part of a handle are sleeved on the connecting rod with a gap. A bidirectional ratchet which is fixed on the connecting rod is located between the annular sleeves with certain gaps. A bidirectional pawl which acts on the bidirectional ratchet is hinged between the two annular sleeves. The bidirectional telescopic double insulator string changer provided by the utility model is suitable for the changing of insulator strings on a transmission line, adopts a detachable structure, and has the characteristics of convenient carrying, high work efficiency and safe and reliable operation.
Description
Technical field
The utility model relates to the Work tool that is used for replacing insulator string under a kind of transmission line operation, but particularly a kind of two insulator strings of bi-directional expansion are changed utensil.
Background technology
At present two insulator strings of ultra-high-tension power transmission line are changed, and mainly adopt a telescopic Tiebar structure of side, and the hook by both sides again with can be connected to the U-shaped ring that two insulator strings contact on plate holes and be connected.The Work tool of the two insulator strings of this replacing, volume is large first, second separate part is many, both increased the carrying difficulty of Work tool, the independent operations of twice have been increased again when changing: U-shaped ring is connected to the operation on two insulator strings series winding plate holes and the two hooks of pull bar are hung over operation on U-shaped-ring again, thereby make replacing complicated operation and difficulty large, but also be difficult to ensure construction safety.
The utility model content
But the purpose of this utility model be to provide a kind of detachable, be convenient for carrying, handling safety two insulator string string changers of bi-directional expansion reliably.
But this novel purpose is achieved in that a kind of two insulator string string changers of bi-directional expansion, the two ends of connecting rod are connected with respectively left and right screw rod with positive and negative screw thread by internal thread, there is respectively the left and right pull head that is connected as with hole on the winning in succession of fixed insulation substring the outer end of left and right screw rod; two annular covers of rocking handle front portion are enclosed within on connecting rod with a gap; be fixed on bidirectional ratchet on connecting rod and keep certain interval ground between this companys annular is overlapped, and the two-way ratchet of bidirectional ratchet effect is hinged between these two annular overlapping.
The ratchet of described bidirectional ratchet is uniform on circumference, being shaped as of all ratchets: by large fan-shaped deduct have with large fan-shaped identical central angle little fan-shaped after part; Described two-way ratchet forms by being a splay company plate.
The length of described ratchet is 40mm; The thickness of two plates of described two-way ratchet is 4mm, and the length of these two plates is 38mm.
Described left and right pull head is the U-shaped structure, all has the bolt connection on left and right pull head and uses the hole.
Described rocking handle rear portion is connected with the lengthening action bars.
When changing two insulator string string, can first the length of changer roughly be adjusted to the length that needs replacing insulator string, then the pull head of changer one end is connected on the two insulator strings series winding plate holes that are positioned at the steel tower side by bolt etc., the pull head of the other end also is connected on the two insulator strings series winding plate holes that are positioned at the line side by double-screw bolt etc., then operate rocking handle to rotate bidirectional ratchet by two-way ratchet towards a direction, just can tighten up the total length of left and right screw rod and connecting rod, make insulator string two ends not be subjected to pulling force thereby insulator string is come to nothing; After insulator string to be replaced was loose, the bulb on insulator string was connected just to be easy to get with bowl head and takes off, and realizes replacing and maintenance activity.After replacing, the operation rocking handle to be rotating in the opposite direction bidirectional ratchet by two-way ratchet, thereby lengthens the total length of left and right screw rod and connecting rod, at last, can like a cork changer be taken off.
Compared with prior art, the beneficial effects of the utility model are:
1, adopt demountable structure, be convenient for carrying: left and right screw rod can unload from connecting rod (for hollow pipe), and (laborsaving during operation) lengthens action bars and also can unload from rocking handle, thereby is easy to carry.During use, then with left and right screw rod and lengthen action bars and pull bar is assembled together.The component set of the utility model changer is also combined, and the little and loading and unloading of volume easily and (that is: can reduce in carrying amount and the carrying difficulty that lofty mountains and steep hills) easy to carry;
2, rocking handle is taked the bidirectional ratchet structure, connecting rod both sides be with easily bi-directional expansion under the rocking handle effect of positive and negative externally threaded screw rod, and operate simple and easy;
3, when changing two insulator string string, screw rod without swinging, adds that the process of tightening up is short, action is little in the tightening process of income in connecting rod, so whole Renewal process easily operates, labour intensity is low, only needs a people can complete light, neatly more changing jobs of insulator string.Operating efficiency and fail safe have been improved;
4, the utility model is simple and reasonable for structure, and application prospect is good.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is that Fig. 1 is along the section enlarged diagram of A-A line.
Fig. 4 is the stereogram (two annular covers and two-way ratchet are shown) of rocking handle shown in Figure 1.
Fig. 5 is the generalized section of Fig. 1.
Fig. 6 is the stereogram of two-way ratchet shown in Figure 3.
Embodiment
Fig. 1, Fig. 2, Fig. 5 illustrates, but a kind of two insulator string string changers of bi-directional expansion, the two ends of connecting rod 1 just are being connected with respectively band by internal thread, the left side of left-hand thread, right screw rod 2, 2a, left, there is respectively a left side that is connected as with the hole on 7 of winning in succession of fixed insulation substring the outer end of right screw rod, right pull head 3, 3a, two annular cover 5a of rocking handle 5 front portions, 5b is enclosed within on connecting rod with a gap, being fixed on bidirectional ratchet 4 on connecting rod 1 keeps certain interval ground to be positioned at the annular 5a of overlapping of this companys, between 5b, be hinged on these two annular cover 5a with the two-way ratchet 6 of bidirectional ratchet effect, between 5b.Above-mentioned left and right pull head 3,3a are the U-shaped structure, all have the bolt connection on left and right pull head and use the hole.Referring to Fig. 3, the ratchet of above-mentioned bidirectional ratchet 4 is uniform on circumference, being shaped as of all ratchets: by large fan-shaped deduct have with large fan-shaped identical central angle little fan-shaped after part (being the section configuration of the ratchet shown in Fig. 3); Two-way ratchet 6 forms by being a splay company plate.For example, large fan-shaped radius is 12mm, and little fan-shaped radius is 7mm, and large and small fan-shaped central angle is 25 degree.The length of ratchet (be X shown in Fig. 3, Y plane, the length of ratchet is in the Z-direction of Fig. 3 place coordinate plane) is 40mm; Referring to Fig. 6, fixed pin shaft on the hole of two-way ratchet 6(on it, bearing pin and two annular covers are hinged) the thickness of two plates be 4mm, the length of these two plates is 38mm(and participates in Fig. 3, plate is parallelogram, and its length is the length on the long limit of this parallelogram).Rocking handle 5 rear portions are connected with the lengthening action bars.
During use, two insulator string series windings are connected on two five holes and win in succession between 7.When changing two insulator string string operation, an end Zola of the present utility model 3 is bolted on the interstitial hole of the two insulator string string five hole connecting plates that are positioned at the steel tower side, after suitably adjusting changer length, adopt the same manner a Zola 3a to be connected on the interstitial hole of another the five holes connecting plate of two insulator string strings that is positioned at the line side; This moment, rotation crank 5, tightened up the total length of connecting rod and screw rod, insulator string can be come to nothing to make insulator string two ends not be subjected to pulling force.After insulator string to be replaced was loose, the bulb on insulator string was connected just to be easy to get with bowl head and takes off, and realizes replacing and maintenance activity.
Claims (5)
1. but two insulator string string changers of a bi-directional expansion, it is characterized in that, the two ends of connecting rod (1) just are being connected with respectively band by internal thread, the left side of left-hand thread, right screw rod (2, 2a), left, there is respectively a left side that is connected as with hole on win in succession (7) of fixed insulation substring the outer end of right screw rod, right pull head (3, 3a), two annular cover (5a that rocking handle (5) is anterior, 5b) be enclosed within a gap on connecting rod, being fixed on bidirectional ratchet (4) on connecting rod (1) keeps certain interval ground to be positioned at the annular (5a of overlapping of this companys, 5b), be hinged on these two annular cover (5a with the two-way ratchet (6) of bidirectional ratchet effect, 5b).
2. but two insulator string string changers of bi-directional expansion according to claim 1, it is characterized in that, the ratchet of described bidirectional ratchet (4) is uniform on circumference, being shaped as of all ratchets: by large fan-shaped deduct have with large fan-shaped identical central angle little fan-shaped after part; Described two-way ratchet (6) forms by being a splay company plate.
3. but two insulator string string changers of bi-directional expansion according to claim 2, is characterized in that, the length of described ratchet is 40mm; The thickness of two plates of described two-way ratchet (6) is 4mm, and the length of these two plates is 38mm.
4. but two insulator string string changers of according to claim 1 and 2 or 3 described bi-directional expansions, is characterized in that, described left and right pull head (3,3a) is the U-shaped structure, all has bolt on left and right pull head and connect and use the hole.
5. but two insulator string string changers of bi-directional expansion according to claim 4, is characterized in that, described rocking handle (5) rear portion is connected with the lengthening action bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220570530 CN202978094U (en) | 2012-11-01 | 2012-11-01 | Bidirectional telescopic double insulator string changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220570530 CN202978094U (en) | 2012-11-01 | 2012-11-01 | Bidirectional telescopic double insulator string changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978094U true CN202978094U (en) | 2013-06-05 |
Family
ID=48519121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220570530 Expired - Lifetime CN202978094U (en) | 2012-11-01 | 2012-11-01 | Bidirectional telescopic double insulator string changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978094U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916369A (en) * | 2012-11-01 | 2013-02-06 | 四川省电力公司达州电业局 | Changer of double-string insulator strings capable of stretching in two directions |
| CN106786172A (en) * | 2017-03-28 | 2017-05-31 | 国网河南省电力公司检修公司 | A kind of replacing device for insulator |
| CN107069542A (en) * | 2017-03-28 | 2017-08-18 | 国网河南省电力公司检修公司 | A kind of insulator steel cap fixture |
-
2012
- 2012-11-01 CN CN 201220570530 patent/CN202978094U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916369A (en) * | 2012-11-01 | 2013-02-06 | 四川省电力公司达州电业局 | Changer of double-string insulator strings capable of stretching in two directions |
| CN106786172A (en) * | 2017-03-28 | 2017-05-31 | 国网河南省电力公司检修公司 | A kind of replacing device for insulator |
| CN107069542A (en) * | 2017-03-28 | 2017-08-18 | 国网河南省电力公司检修公司 | A kind of insulator steel cap fixture |
| CN107069542B (en) * | 2017-03-28 | 2018-08-24 | 国网河南省电力公司检修公司 | A kind of insulator steel cap fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |