CN102102457B - Cross arm connecting device - Google Patents
Cross arm connecting device Download PDFInfo
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- CN102102457B CN102102457B CN200910215609.XA CN200910215609A CN102102457B CN 102102457 B CN102102457 B CN 102102457B CN 200910215609 A CN200910215609 A CN 200910215609A CN 102102457 B CN102102457 B CN 102102457B
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- cross
- arm
- tapered sleeve
- connecting device
- cross arm
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Abstract
The invention discloses a cross arm connecting device for connecting a cross arm and other assemblies. The cross arm connecting device comprises at least one first taper sleeve and one second taper sleeve, wherein at least one part of the first taper sleeve is positioned in the cross arm, the second taper sleeve is positioned outside the cross arm, the first taper sleeve is connected with the second taper sleeve through a fastener, and the first taper sleeve is connected with the cross arm through a taper connector. The cross arm connecting device disclosed by the invention can effectively and fixedly connect the cross arm and a pole tower, and ensures the electric performance and the insulation performance of the cross arm.
Description
Technical field
The present invention relates to a kind of novel cross arm connecting device, be mainly used in cross-arm to be fixed and to be connected with other assemblies.
Background technology
At present, in power transmission and distribution system, cross-arm is as insulating supporting member, very general in application.Because insulator crossarm is connected and sets up with tower bar, and there is certain distance between two tower bars, and transmission line of electricity carries out hanging wire by insulator crossarm, therefore, being connected between insulator crossarm and tower bar just seems extremely important, needs the distortion that can afford certain pressure and keep cross-arm within the acceptable range.
In addition, the dielectric level of cross-arm, plays very large effect to the safety of transmission line of electricity again, how to guarantee the insulating properties that are fixedly connected with and guarantee cross-arm of cross-arm and tower bar, is the important topic that technician researches and develops.
For example China Patent No. is " 200820027857.2 ", name is called the patent of " a kind of bracing frame ", discloses a kind of bracing frame, comprises cross-arm, the two ends of cross-arm are connected with respectively one and form the fixedly load of triangular structure relation with cross-arm, and fixing load being fixed together by main card hoop and electric pole; The two ends of cross-arm are also connected with respectively one and carry on a shoulder pole with the support of cross-arm formation triangular structure relation, support load and being fixed together by vice card hoop and electric pole.As a kind of embodiment, described vice card hoop is positioned on the electric pole on main card hoop top.As another kind of embodiment, described vice card hoop is positioned on the electric pole of main card hoop bottom.In order to make support frame structure symmetrical, described two fixing carry on a shoulder pole equal in length.
Summary of the invention
The object of the invention is to disclose a kind of cross arm connecting device, cross-arm and tower bar firmly can be fixed, and can not affect the electrical safety performance of transmission line of electricity, and make cross-arm can hold out against the burden of certain pressure and be out of shape in tolerance interval.
Technical scheme of the present invention is, a kind of cross arm connecting device, for cross-arm is connected with other assemblies, comprise at least the first tapered sleeve and the second tapered sleeve, described the first tapered sleeve is positioned at cross-arm at least partly, described the second tapered sleeve is positioned at outside cross-arm, and described the first tapered sleeve is connected by securing member with the second tapered sleeve, between described the first tapered sleeve and cross-arm, by taper connection part, is connected.
In a preferred embodiment of the present invention, described taper connection part is metal connecting piece.
In a preferred embodiment of the present invention, described the first tapered sleeve and cross-arm are provided with taper accepting hole, and described taper connection part is taper bolt, in the first tapered sleeve, by nut and described taper bolt, are fixed.
In a preferred embodiment of the present invention, described the first tapered sleeve and cross-arm are provided with taper accepting hole, and described taper connection part is cone-shaped metal post, on described cone-shaped metal post, is provided with draw-in groove, by draw-in groove and collar, cone-shaped metal post is positioned.
In a preferred embodiment of the present invention, described the first tapered sleeve or the second tapered sleeve have also been wholely set connection base, on described connection base, are provided with securing member link position, by securing member, the first tapered sleeve are connected with the second tapered sleeve.
In a preferred embodiment of the present invention, described the first tapered sleeve becomes corresponding relation with the tapering of the second tapered sleeve and the tapering of cross-arm, and described the first tapered sleeve partly fits tightly in cross-arm, and described the second tapered sleeve fits tightly outside cross-arm.
In a preferred embodiment of the present invention, the second tapered sleeve of stating is placed in outside cross-arm, and covers the position of the upper conical connector of described cross-arm.
In a preferred embodiment of the present invention, described taper connection part is 4, is symmetricly set on cross-arm surrounding.
In a preferred embodiment of the present invention, on described connection base, be also provided with the link position for cross-arm is connected with other assemblies.
In a preferred embodiment of the present invention, described cross-arm is insulator crossarm, and body is mainly glass fiber reinforced plastic and forms, and the first described tapered sleeve and the second tapered sleeve are that metal is made.
The cross arm connecting device that the present invention discloses, owing to by tapered sleeve, cross-arm and other coupling assemblings being fixed respectively inside and outside cross-arm, two tapered sleeves are stressed contrary with installation direction, and by taper connection part, tapered sleeve and cross-arm are fixed, the distortion that cross-arm is produced when stressed is very little, and guarantee when stressed, between cross-arm and taper connection part, can not produce space, guaranteed the electric property of cross-arm.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of cross-arm in preferred embodiment of the present invention and linkage;
Accompanying drawing 2 is the schematic diagram of the first tapered sleeve in preferred embodiment of the present invention;
Accompanying drawing 3 is the connection diagram of taper connection part in preferred embodiment of the present invention and the first tapered sleeve, the second tapered sleeve and cross-arm.
The specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
A kind of cross arm connecting device that the present invention discloses, can be applied in power transmission and distribution power system, for cross-arm is connected with associated component, such as being connected and fixing of cross-arm and shaft tower, or cross-arm and other assemblies are such as being connected and fixed of whole tower or tower head etc. etc.In the present embodiment with power transmission and distribution power system shaft tower and cross-arm be connected to example explanation, but the present invention is not as limit, protection scope of the present invention is as the criterion with the protection domain of claim.
As shown in Fig. 1, cross-arm 1 cross section in the present embodiment is rounded, and it is conical that main body 11 integral body of cross-arm 1 are, and the diameter at cross-arm 1 two is different.In the embodiment of the present invention, cross-arm 1 body is mainly comprised of insulating glass steel, and outside scribbles insulating coating again, but the present invention do not limit for the material of cross-arm 1, can be the cross-arm 1 that other materials is made.
What be connected with cross-arm 1 is the first tapered sleeve 2, the first tapered sleeve 2 is connected with and connects base 23, the first tapered sleeve 2 comprises that major part is placed in the tapered sleeve body 21 of cross-arm 1 inside, and tapering matches with the tapering of cross-arm, the first tapered sleeve 2 is fitted in cross-arm 1 inside closely, and push up sufficient position, connected with the first tapered sleeve 2 be connected the outside that base 23 is placed in cross-arm 1, tapered sleeve body 21 is provided with base plate 22 with being connected between base 23.
As shown in Fig. 2 and 3, the position matching with cross-arm 1 inside on the first tapered sleeve 2, is provided with taper accepting hole 211, connecting on base 23, is provided with connecting hole 221.
The second tapered sleeve 3 is set in cross-arm 1 outside, and the taper fit of the tapering of the second tapered sleeve 3 and cross-arm 1, thereby is fitted in closely the outside of cross-arm 1.On the second tapered sleeve 3, be provided with perforate 31, coordinate with the connecting hole 221 being connected on base 23, thereby conveniently by securing member 5, the first tapered sleeve 2 and the second tapered sleeve 3 are fixed.
As shown in Fig. 3, taper connection part 4, by being arranged on the taper accepting hole on the first tapered sleeve 2 and cross-arm 1, is fixed the first tapered sleeve 2 and cross-arm 1.Because cross-arm 1 is that insulating glass steel is made, if employing cylinder-shaped link, can be because insulating glass steel makes to produce space between cylindricality connector and glass fiber reinforced plastic in the elastic deformation under stress, thus electric property and the insulating properties of link position affected.Therefore, in the embodiment of the present invention, by adopting taper connection part 4 to avoid this impact.
In embodiments of the present invention, taper connection part 4 one end are cylindricality 44, from styletable, it is up cone 41, tapering is suitable, styletable can be shape of threads, also can be that screens is set, thereby coordinate with nut 43 and pad 42 or clip, in the bottom of taper connection part 4, be useful on fastening stopper slot 45.Accordingly, taper accepting hole can be provided with screw thread, can be also straight wall, and screw thread is not set.Taper connection part 4 can be that the direction as shown in Fig. 3 is installed, and also taper connection part 4 oppositely can be arranged, thereby realize oppositely, installs.
In embodiments of the present invention, taper connection part 4 is symmetrically arranged 8, but also can for example, according to cross-arm length, suffered load intensity and the thickness of cross-arm, as required setting, 4 or 6 or 12 the taper connection parts 4 of cross-arm.
The second tapered sleeve 3 is fitted in cross-arm outside, and the position of taper connection part 4 is covered, thereby prevents that taper connection part 4 from having emerge outward loosening in taper accepting hole position, and makes whole cross-arm 1 linkage more attractive in appearance.
In the embodiment of the present invention, the first tapered sleeve 2 and the second tapered sleeve 3 all adopt metal to make, thereby have improved the intensity of a whole set of linkage, and securing member 5 also adopts metal to make, but the present invention does not limit this, also can adopt other high-strength insulating material to make.
In the embodiment of the present invention, connecting base 23 and the first tapered sleeve 2 is wholely set, but the present invention does not limit this, can say that equally connection base 23 and the second tapered sleeve 3 are wholely set, or adopt other connected modes, and connecting hole 221 is set on the first tapered sleeve 2, thereby realize being connected and fixed of the first tapered sleeve 2 and the second tapered sleeve 3.
In addition, connect on base 23 two junction plates can be set, also a plurality of junction plates can be set, depend on the needs, the installing hole 231 on junction plate, can arrange equally as required, thereby facilitates the fixing of cross-arm 1 and shaft tower.
The cross arm connecting device disclosing by the embodiment of the present invention, cross-arm and shaft tower effectively can be achieved a fixed connection, and make cross-arm can bear the pressure (weight) of regulation and the distortion of cross-arm and with the change in location of shaft tower at tolerance interval, and can guarantee insulating properties and the electric property of cross-arm; And the cross arm connecting device of the present invention's announcement, all uncomplicated, easy and simple to handle in installation and volume production.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (9)
1. a cross arm connecting device, for cross-arm is connected with other assemblies, it is characterized in that, comprise at least the first tapered sleeve and the second tapered sleeve, described the first tapered sleeve is positioned at cross-arm at least partly, described the second tapered sleeve is positioned at outside cross-arm, and described the first tapered sleeve is connected by securing member with the second tapered sleeve, between described the first tapered sleeve and cross-arm, by taper connection part, is connected.
2. cross arm connecting device according to claim 1, is characterized in that, described taper connection part is metal connecting piece.
3. cross arm connecting device according to claim 1, it is characterized in that, described the first tapered sleeve and cross-arm are provided with taper accepting hole, and described taper connection part is cone-shaped metal post, on described cone-shaped metal post, be provided with draw-in groove, by draw-in groove and collar, cone-shaped metal post positioned.
4. cross arm connecting device according to claim 1, is characterized in that, described the first tapered sleeve or the second tapered sleeve have also been wholely set connection base.
5. cross arm connecting device according to claim 1, is characterized in that, described the first tapered sleeve becomes corresponding relation with the tapering of the second tapered sleeve and the tapering of cross-arm, and described the first tapered sleeve partly fits tightly in cross-arm, and described the second tapered sleeve fits tightly outside cross-arm.
6. cross arm connecting device according to claim 1, is characterized in that, the second described tapered sleeve is placed in outside cross-arm, and covers the position of the upper conical connector of described cross-arm.
7. cross arm connecting device according to claim 1, is characterized in that, described taper connection part is 4, is symmetricly set on cross-arm surrounding.
8. cross arm connecting device according to claim 4, is characterized in that, on described connection base, is also provided with the link position for cross-arm is connected with other assemblies.
9. cross arm connecting device according to claim 1, is characterized in that, described cross-arm is insulator crossarm, and body is mainly glass fiber reinforced plastic and forms, and the first described tapered sleeve and the second tapered sleeve are that metal is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215609.XA CN102102457B (en) | 2009-12-21 | 2009-12-21 | Cross arm connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910215609.XA CN102102457B (en) | 2009-12-21 | 2009-12-21 | Cross arm connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102102457A CN102102457A (en) | 2011-06-22 |
| CN102102457B true CN102102457B (en) | 2014-08-13 |
Family
ID=44155495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910215609.XA Active CN102102457B (en) | 2009-12-21 | 2009-12-21 | Cross arm connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102102457B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1019536B (en) * | 1988-11-15 | 1992-12-16 | 尤大千 | Low-pressure overhead circuit cross arm of glass fiber reinforced plastics |
| US5228260A (en) * | 1992-03-16 | 1993-07-20 | Aluma-Form, Inc. | Cross brace and support arm |
| DE4302609A1 (en) * | 1993-01-30 | 1994-08-04 | Greschbach Ind Gmbh & Co | Fastener for girder on overhead cable masts |
| CN2199268Y (en) * | 1994-06-04 | 1995-05-31 | 诸城市电力铁塔厂 | Steel pipe tower cross arm for power transmission line |
| JP2008072853A (en) * | 2006-09-14 | 2008-03-27 | Chugoku Electric Power Co Inc:The | Arm metal reinforcing method and plate implement for arm metal reinforcement |
| CN201276868Y (en) * | 2008-08-30 | 2009-07-22 | 孙风琴 | Support frame |
| CN201574617U (en) * | 2009-12-21 | 2010-09-08 | 常熟风范电力设备股份有限公司 | Cross arm connecting device |
-
2009
- 2009-12-21 CN CN200910215609.XA patent/CN102102457B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102102457A (en) | 2011-06-22 |
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