CN202227764U - Composite electric cross arm - Google Patents
Composite electric cross arm Download PDFInfo
- Publication number
- CN202227764U CN202227764U CN2011203470706U CN201120347070U CN202227764U CN 202227764 U CN202227764 U CN 202227764U CN 2011203470706 U CN2011203470706 U CN 2011203470706U CN 201120347070 U CN201120347070 U CN 201120347070U CN 202227764 U CN202227764 U CN 202227764U
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- cross arm
- pipe portion
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- flange tube
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- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 7
- 239000011152 fibreglass Substances 0.000 claims description 44
- 230000002787 reinforcement Effects 0.000 claims description 21
- 229920002379 silicone rubber Polymers 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 11
- 239000010931 gold Substances 0.000 claims description 10
- 229910052737 gold Inorganic materials 0.000 claims description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 239000011521 glass Substances 0.000 abstract description 4
- 239000003365 glass fiber Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000000465 moulding Methods 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a composite electric cross arm, which comprises a tubular cross arm body, a connection flange arranged at one end of the cross arm body and a hardware fitting at the other end of the cross arm body and is characterized in that the cross arm body is composed of a glass steel tube and a glass fibre reinforced material layer wound on the outer wall of the glass steel tube; the cross arm body is divided into a root part and a tube part along the length direction, wherein the length ratio of the root part to the tube part is 1:7; the outside diameter of the root part is more than that of the tube part; a transition section is arranged at the joint of the tube part and the root part; the length of the transition section is 200 mm; the transition section is a conical structure which is gradually increased from the inner edge of the tube part to the inner edge of the root part; the inside diameters of the cross arm body are same; the inner core of the glass steel tube is fully filled with a foamy material; and plugs for preventing and blocking the foamy material from overflowing are also reserved at the port of the tube part and the port of the root part respectively. The electric cross arm disclosed by the utility model has the characteristics of being light in weight, convenient for installation, low cost, strong in bearing capacity of the root part and the like and is easy to popularize and apply.
Description
Technical field
The utility model relates to a kind of composite electrical cross arm, belongs to the matched structural field of transmission line of electricity.
Background technology
In the electric power facility field, cross-arm is a matched structural important in the transmission line of electricity, and an end of cross-arm is connected with transmission of electricity bar or tower main body, and the other end is hung transmission pressure.Poor to traditional cross-arm insulating properties; The defective that application life is short; The existing glass fiber reinforced plastic cross-arm that processes with composite material; The fiber-reinforced resin matrix compound material (hereinafter to be referred as FRP) that this composite material cross-arm utilizes has intensity height, light weight, corrosion-resistant and characteristics such as fatigue performance, endurance quality and electrical insulation capability are good, performance can design, also just the composite material cross-arm with respect to the outstanding advantage place of traditional cross-arm;
Yet owing to adopt glass-reinforced plastic material, i.e. the electrical cross arm of fibre reinforced composites moulding still prolongs the solid construction of having used metal cross arm, also prolongs simultaneously and has used cross-arm integral body to be isometrical frame mode; Have following defective: one, electrical cross arm is whole is solid construction, though its weight has minimizing slightly with respect to the weight of metal cross arm, weight advantage is little; Two, continue to use that isometrical cross-arm structure will certainly cause waste of material to a certain degree and the efficacy effect that can't bring into play used composite material fully; Therefore guarantee rigidity requirement the bearing load effect under and have under the prerequisite that the good insulation performance requires that employing resin-based enhancement mode fibreglass is made solid electrical cross arm satisfying, the cost promotion can't promotion and implementation.Three, can learn through the stress distribution situation analysis of cross-arm entity structure, be big stress distribution zone at the root of cross-arm structure, and stress is less at position, cross-arm termination; Unbalanced stress distribution structure gesture can cause the root loss of cross-arm serious; If with the whole overstriking of cross-arm, then cause whole cross-arm weight to improve, the position, termination is too fat to move; Strengthen the difficulty of installing and overhauling, be difficult for promotion and implementation.
Summary of the invention
In order to overcome the defective that exists in the above-mentioned prior art, the purpose of the utility model provides a kind of lightweight, easy for installation, cost is low and the root supporting capacity is strengthened composite electrical cross arm.
To achieve these goals, the utility model adopts following technical scheme: a kind of composite electrical cross arm, comprise tubulose the cross-arm body, be loaded on the adpting flange of this cross-arm body one end and the gold utensil of this cross-arm body other end; It is characterized in that: said cross-arm body is made up of glass reinforced plastic pipe and the fiber glass reinforcement layer that twines at this glass reinforced plastic pipe outer wall; To being divided into root and pipe portion, wherein, the length of root is 1:7 with the length ratio of pipe portion to this cross-arm body along long; The external diameter of said root is greater than the external diameter of said pipe portion; The junction of said pipe portion and said root is provided with a changeover portion, and this transition section length is 200mm; Said changeover portion is the cone-shaped that increases gradually by the inner edge of inner edge to the root of pipe portion; The inner core place of said glass reinforced plastic pipe is full of foam-like material is arranged, and in the port of said pipe portion and the port of said root, leaves respectively and places at a distance from the excessive plug of retaining foam-like material.
Be coated with silicon rubber cluster parachute layer between the external surface of the external surface of aforementioned tube portion and gold utensil link to pipe portion and changeover portion link.
The internal diameter of above-mentioned glass reinforced plastic pipe is 130mm, and external diameter is 160mm; Winding thickness at the fiber glass reinforcement layer of this glass reinforced plastic pipe outer wall is 15-25mm.
The length of above-mentioned root plug is 80-100mm; The length of pipe portion plug is 100-200mm.
The cone-shaped of above-mentioned changeover portion is entwined by the fiber glass reinforcement that is impregnated with resin adhesive liquid.
Above-mentioned used adpting flange is combined by an annular chassis, cylindric flange tube and some gussets; Wherein, all thickness and the interior circular diameter with the annular chassis is identical for the thickness of flange tube and barrel dliameter; The flange tube vertically is loaded on the inner circle on annular chassis, and the base of flange tube is fixedly connected with the inner periphery limit on this annular chassis; Circumference equidistance along this annular chassis has a plurality of bolts hole; Some gussets are distributed on the annular chassis and lay respectively between adjacent 2 bolts hole; Said gusset is a triangle, and its base is slightly less than the width on said annular chassis, and the right-angle side of gusset is fixed on the outer wall of flange tube, and it highly is 2/3 of a flange tube height; The hypotenuse angle of rib is 60-75 °.
The external diameter of aforementioned tube portion is 190-210mm, and root is by constituting at the peripheral fiber glass reinforcement enhancement Layer that twines of pipe portion, and the external diameter of this root is 240-280mm.
The top of above-mentioned flange tube is socketed on the enhancement Layer of root, and the base of flange tube is concordant with the port of root; By twining the fiber glass reinforcement layer that thickness is 10-15mm again between some gusset top to the flange tube tops that are connected with the flange tube; Winding thickness by flange tube top to changeover portion and root link is the fiber reinforced material layer of 18-23 mm.
External surface in above-mentioned silicon rubber cluster parachute layer stage casing also is equipped with the composite material cushion block that a confession maintenance personal tramples; This composite material cushion block comprises the half-cylindrical split of 2 flangings; The flanging of 2 half-cylindrical splits is on the outer wall that is buckled in said pipe portion stage casing, through the bolt connection that is fixed.
Owing to adopted technique scheme; The beneficial effect of the utility model is following: 1, the innovation part of the composite material cross-arm of the utility model is the processing to the cross-arm root; Knowwhy and practice result according in the past can be learnt; Root structure is the key of carrying under the effect of cross-arm structure bearing load, and position, cross-arm termination stress value is little in that cross-arm Root Stress value is big, so can well head it off if root is just strengthened; The objective of the invention is to bring into play structural advantage and reduce the cross-arm cost, alleviate cross-arm weight.2, composite material cross-arm overall structure is divided into four layers: internal layer is light weight insulating materials such as filled and process, and the intermediate layer is the glass fibre reinforced composion pipe of pultrude process moulding; Inferior skin is that pipe portion and root and the changeover portion fibreglass reinforcing material between the two of this glass fibre reinforced composion pipe is Wrapping formed; The outer silicon rubber full skirt layer that coats; The setting of this structure, one side has been strengthened the load of whole cross-arm; Coat silicon rubber full skirt layer again to increase creep age distance in cross-arm body outside on the other hand.3, adopt cross-arm structure root is twined thickening, be smoothly transitted into isometrical pipe portion then, technology is simple, be convenient to operation, high safety; Be easy to promotion and implementation.
Description of drawings
Fig. 1 is the whole cross-sectional view of the utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1 root.
Fig. 3 is that Figure 1A-A is to structural representation.
Fig. 4 is that Figure 1B-B is to structural representation.
The specific embodiment
Like Fig. 1, Fig. 2, shown in Figure 3: this composite electrical cross arm is assembled by cross-arm body 1, root 2, pipe portion 3, changeover portion 4, silicon rubber cluster parachute layer 5, foam-like material 6, pipe portion plug 7, root plug 8, cushion block 9, adpting flange 10 and gold utensil 11.
Cross-arm body 1 comprises the glass reinforced plastic pipe of a pultrusion and the fiber glass reinforcement layer of its external surface winding; Used glass reinforced plastic pipe internal diameter is 130mm, and external diameter is 160mm; The winding thickness of fiber glass reinforcement layer is 15～25mm, and the external diameter of the cross-arm body 1 of formation is 190-210mm.
To being divided into root 2 and pipe portion 3, wherein, the length of root 2 is 1:7 with the length ratio of pipe portion 3 to this cross-arm body 1 along long; The external diameter of pipe portion 3 is the external diameter of cross-arm body 1.
2 places also are wound with enhancement Layer at root, promptly the external diameter of pipe portion 3 twine again thickness be the fiber glass reinforcement layer of 50-70mm as enhancement Layer, making its root external diameter is 240-280mm.
The junction of root 2 to pipe portion 3 is provided with a changeover portion 4, and this transition section length is 200mm; This changeover portion is the cone-shaped that increases gradually by the inner of the inner to the root 2 of pipe portion 3; The conical surface of changeover portion 4 is by the fiber glass reinforcement winding method moulding that is impregnated with resin adhesive liquid of routine; It is to carry out numerical simulation analysis according to the Finite Element Method of routine to confirm that the thickness of root 2 winding layers is selected.
Being full of at the inner core place of glass reinforced plastic pipe has foam-like material 6, and foamed material 6 adopts the engineering of market sales with foaming A, B component material; In the glass tube of cross-arm root, beginning the mode of filling in through foaming machine charges into foamed material the inner core of glass reinforced plastic pipe.
The glass reinforced plastic pipe port that is positioned at root 2 outer ends is provided with one and prevents the root plug 8 that foam-like material 6 is overflowed, and its length is 80-100mm; The glass reinforced plastic pipe port that is positioned at pipe portion 3 outer ends is provided with a pipe portion plug 7, and its length is 100-200mm, and the best is 150mm; Pipe portion plug 7, root plug 8 are respectively epoxy resin fiberglass forming materials rod, and this epoxy resin fiberglass moulding stick is processed by the pultrusion method and the extruding equipment of routine; All the internal diameter with glass reinforced plastic pipe is identical with the diameter of root plug 8 for the diameter of pipe portion plug 7.
Adpting flange 10 is combined by an annular chassis 101, flange tube 104 cylindraceous and some gussets 103; Wherein, all thickness and the interior circular diameter with annular chassis 101 is identical for the thickness of flange tube 104 and barrel dliameter; Flange tube 104 vertically is loaded on the inner circle on annular chassis 101, and the base of flange tube 104 is fixedly connected with the inner periphery limit on this annular chassis 101; Circumference equidistance along this annular chassis 101 has a plurality of bolts hole 102; Some gussets 103 are distributed on the annular chassis 101 and lay respectively between adjacent 2 bolts hole 102; Gusset is a triangle, and its base is slightly less than the width on annular chassis 101, and the right-angle side of gusset is fixed on the outer wall of flange tube 104, and it highly is 2/3 of flange tube 104 height; The hypotenuse angle of gusset is 60-75 °.
Some gusset 103 all adopts steel plate, and the base of every gusset is fixed along the radially welding on its annular chassis 101; Some gusset 103 plays auxiliary humidification with annular chassis 102 on flange tube 104.
In this instance, the bolt hole 102 on the annular chassis 101 is provided with 12, and gusset is provided with 12.Bolt hole 102 and some gussets 103 be provided with what with the size of adpting flange direct relation is arranged; The cross-arm volume is big, and corresponding adpting flange is big, and bolt hole on the adpting flange chassis and gusset can corresponding increasing.
The top of flange tube 104 is socketed on root 2 outer ends, and the base of flange tube is concordant with the external port of root 2; Some gussets 103 tops by being connected with flange tube 104 are wound with the fiber glass reinforcement layer between flange tube 104 tops, its thickness is 10-15mm; Flange tube 104 bottoms to changeover portion 4 is 40-60mm with the thickness of the fiber reinforced material layer of the link winding of root 2.
Also be socketed with the gold utensil 11 of a connection conducting wire at the external port place of pipe portion 3, this gold utensil 11 adopts conventional gold utensil, the external port suit of its cylindric part and pipe portion 3; Join with changeover portion 4 and be coated with silicon rubber full skirt layer 5 between the external surface of holding by inner external surface to the pipe portion 3 of joining of gold utensil 11 and pipe portion 3.
External surface in silicon rubber cluster parachute layer 5 stage casing also is equipped with the composite material cushion block 9 that a confession maintenance personal tramples; The height of this composite material cushion block 9 is 40mm; Cushion block 9 is formed by half-cylindrical split of 2 flangings and bolt combination; 2 half-cylindrical splits by the glass fiber compound material shop cover, curing molding, relative position leaves the fixedly screw of usefulness on its flanging; In the time of fixedly, earlier two semi-cylindricals are snapped onto the pipe portion stage casing that is wound with the fiber glass reinforcement layer relatively, after two flangings butt joints, through the bolt connection that is fixed.
As shown in Figure 4, gold utensil 11 is combined by steel cylinder 111 and thread gripping-board, and steel cylinder 111 is isometrical straight barrel, and the port of its openend is provided with internal thread, the outer end socket of this openend and pipe portion 3; During socket,, before structure glue is solidified, steel cylinder 111 and pipe portion 3 outer ends are tightened with completion and be connected earlier with smearing the bonding structure glue of use on the internal thread; The steel plate of arranging in the closed end of steel cylinder 111 welding right-angled intersection also punches on steel plate, is used to install electrified wire; 4 ports of the steel plate of right-angled intersection offer threading hole 112 respectively; Lead 113 passes threading hole 112 respectively and realizes connecting.
The forming method of the utility model electrical cross arm is:
Getting an internal diameter is 130mm, and external diameter is the glass reinforced plastic pipe of 160mm, and the fiber glass reinforcement layer of 15～25mm is twined in the outside; After solidifying, the external diameter of the cross-arm body 1 of formation is 190-210mm; Twine enhancement Layer at root 2 places with fiber glass reinforcement then, promptly the external diameter of pipe portion 3 twine again thickness be the fiber glass reinforcement of 50-70mm as enhancement Layer, making its root external diameter is 240-280mm.
The position of metal flange tube is socketed on the enhancement Layer of root 2, and the base of metal flange tube is concordant with the port of root; By twining the fiber glass reinforcement layer that thickness is 10-15mm again between some gusset tops that are connected with the metal flange tube to this metal flange tube top, make metal flange tube and the cross-arm body 1 can good combination; The thickness that is twined the fiber reinforced material layer by the position of metal flange tube top to changeover portion and root link is 18-23 mm, makes the thickness of the fiber reinforced material layer that twines on some gusset top to changeover portions being connected with the metal flange tube and the root link concordant.
The winding of fiber glass reinforcement layer is to twine continuously to root from the end of cross-arm body 1, and root 2 is on this basis of twining continuously, between pipe portion 3 and root 2, twines out tapered transition 4 again; Make the diameter of the diameter of root 2 greater than pipe portion 3; And then twine continuously for 3 sections at the root that includes metal flange; After accomplishing the winding of whole cross-arm body 1, through curing molding; External surface at cross-arm body 1 coats silicon rubber full skirt layer 5 at last.
The top of above-mentioned flange tube is socketed on the root enhancement Layer; Silicon rubber cluster parachute layer 5 is through silicon rubber being cut into fragment or strip; Then with the silicon rubber filling of these fragments or strip in the middle of prefabricated mould, heating treats that curing molding is the silicon rubber full skirt again.
Claims (10)
1. composite electrical cross arm, comprise tubulose the cross-arm body, be loaded on the adpting flange of this cross-arm body one end and the gold utensil of this cross-arm body other end; It is characterized in that: said cross-arm body is made up of glass reinforced plastic pipe and the fiber glass reinforcement layer that twines at this glass reinforced plastic pipe outer wall; To being divided into root and pipe portion, wherein, the length of root is 1:7 with the length ratio of pipe portion to this cross-arm body along long; The external diameter of said root is greater than the external diameter of said pipe portion; The junction of said pipe portion and said root is provided with a changeover portion, and this transition section length is 200mm; Said changeover portion is the cone-shaped that increases gradually by the inner edge of inner edge to the root of pipe portion; The inner core place of said glass reinforced plastic pipe is full of foam-like material is arranged, and in the port of said pipe portion and the port of said root, leaves respectively and places at a distance from the excessive plug of retaining foam-like material.
2. composite electrical cross arm as claimed in claim 1 is characterized in that: be coated with silicon rubber cluster parachute layer between the external surface by the external surface of said pipe portion and gold utensil link to said pipe portion and changeover portion link.
3. composite electrical cross arm as claimed in claim 2 is characterized in that: the internal diameter of said glass reinforced plastic pipe is 130mm, and external diameter is 160mm; The winding thickness of said fiber glass reinforcement layer is 15-25mm.
4. composite electrical cross arm as claimed in claim 3 is characterized in that: the length of said root plug is 80-100mm; The length of said pipe portion plug is 100-200mm.
5. composite electrical cross arm as claimed in claim 4 is characterized in that: the cone-shaped of said changeover portion is entwined by the fiber glass reinforcement that is impregnated with resin adhesive liquid.
6. composite electrical cross arm as claimed in claim 5 is characterized in that: said adpting flange is combined by an annular chassis, cylindric flange tube and some gussets; Wherein, all thickness and the interior circular diameter with the annular chassis is identical for the thickness of flange tube and barrel dliameter; The flange tube vertically is loaded on the inner circle on annular chassis, and the base of flange tube is fixedly connected with the inner periphery limit on this annular chassis; Circumference equidistance along this annular chassis has a plurality of bolts hole; Some gussets are distributed on the annular chassis and lay respectively between adjacent 2 bolts hole; Said gusset is a triangle, and its base is slightly less than the width on said annular chassis, and the right-angle side of gusset is fixed on the outer wall of flange tube, and it highly is 2/3 of a flange tube height; The hypotenuse angle of rib is 60-75 °.
7. composite electrical cross arm as claimed in claim 6 is characterized in that: the external diameter of said pipe portion is 190-210mm, and said root is by constituting at the peripheral fiber glass reinforcement enhancement Layer that twines of pipe portion, and the external diameter of this root is 240-280mm.
8. composite electrical cross arm as claimed in claim 7 is characterized in that: the top of said flange tube is socketed on the enhancement Layer of said root, and the base of flange tube is concordant with the port of said root; By being wound with the fiber glass reinforcement layer again between some gusset tops that are connected with the flange tube to the said flange tube top, its thickness is 10-15mm; Winding thickness by said flange tube top to said changeover portion and said root link is 18-23 mm.
9. like each described composite electrical cross arm of claim 2-8, it is characterized in that: the external surface in said silicon rubber cluster parachute layer stage casing also is equipped with the composite material cushion block that a confession maintenance personal tramples.
10. composite electrical cross arm as claimed in claim 9; It is characterized in that: said composite material cushion block comprises the half-cylindrical split of 2 flangings; The flanging of 2 half-cylindrical splits is on the outer wall that is buckled in said pipe portion stage casing, through the bolt connection that is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203470706U CN202227764U (en) | 2011-09-15 | 2011-09-15 | Composite electric cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203470706U CN202227764U (en) | 2011-09-15 | 2011-09-15 | Composite electric cross arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202227764U true CN202227764U (en) | 2012-05-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203470706U Expired - Lifetime CN202227764U (en) | 2011-09-15 | 2011-09-15 | Composite electric cross arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202227764U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220933A (en) * | 2015-10-21 | 2016-01-06 | 常熟风范电力设备股份有限公司 | A kind of steel tower cross-arm component |
| CN106567604A (en) * | 2016-11-22 | 2017-04-19 | 常熟风范电力设备股份有限公司 | Umbrella skirt type cement-based composite insulated cross arm and manufacturing technology thereof |
| CN107859417A (en) * | 2017-11-24 | 2018-03-30 | 方隆电气设备有限公司 | A kind of composite insulation cross arm |
| CN112885544A (en) * | 2021-02-24 | 2021-06-01 | 江苏神马电力股份有限公司 | Post insulator and composite cross arm |
| CN113006585A (en) * | 2021-04-30 | 2021-06-22 | 华北电力大学（保定） | Composite cross arm structure |
-
2011
- 2011-09-15 CN CN2011203470706U patent/CN202227764U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105220933A (en) * | 2015-10-21 | 2016-01-06 | 常熟风范电力设备股份有限公司 | A kind of steel tower cross-arm component |
| CN106567604A (en) * | 2016-11-22 | 2017-04-19 | 常熟风范电力设备股份有限公司 | Umbrella skirt type cement-based composite insulated cross arm and manufacturing technology thereof |
| CN107859417A (en) * | 2017-11-24 | 2018-03-30 | 方隆电气设备有限公司 | A kind of composite insulation cross arm |
| CN112885544A (en) * | 2021-02-24 | 2021-06-01 | 江苏神马电力股份有限公司 | Post insulator and composite cross arm |
| CN113006585A (en) * | 2021-04-30 | 2021-06-22 | 华北电力大学（保定） | Composite cross arm structure |
| CN113006585B (en) * | 2021-04-30 | 2022-05-06 | 华北电力大学（保定） | Composite cross arm structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181211 Address after: 277500 South of Beixin West Road, Tengzhou City, Zaozhuang City, Shandong Province (Luban Avenue West, College West Road North) Patentee after: Beibao Power Composite Co., Ltd. Address before: 102101 No. 261 Kangxi Road, Badaling Industrial Development Zone, Yanqing County, Beijing Patentee before: Beijing FRP Research & Design Institute Composite Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |