CN206917388U - Compound cross-arm and power transmission rod - Google Patents

Abstract

The utility model discloses a kind of compound cross-arm and power transmission rod, and the compound cross-arm is fixed on the body of rod of power transmission rod, and compound cross-arm includes：Plug, insulating barrier and bearing member, insulating barrier and bearing member are coated and fixed on the outer peripheral face of plug, and bearing member is located at the middle part that plug is connected with the body of rod, and insulating barrier is positioned at other regions in addition to middle part.A kind of power transmission rod using above-mentioned compound cross-arm is also disclosed in the utility model.Through the above way, a bearing member is preset at the position that plug is connected with the body of rod, one side plug by way of punching without realizing the connection with the body of rod, on the other hand the load being fixedly connected is directly acted on bearing member, insulating barrier will not be caused to damage, the outer peripheral face in plug is coated and fixed in bearing member and insulating barrier, avoids corrosion of the external environment condition to plug, ensures the mechanical property of compound cross-arm.

Description

Compound cross-arm and power transmission rod

Technical field

A kind of transmission of electricity insulator arrangement field is the utility model is related to, relates more specifically to a kind of compound cross-arm and power transmission rod.

Background technology

In field of electrical equipment, cross-arm used for transmission line is the important matched structural of power transmission rod, for support wire, Lightning conducter etc., and be allowed to keep certain safe distance by regulation.It is wide in 35kV and the transmission line of electricity of following voltage class at present General mostly iron cross arm, steel cross-arm etc. the metal cross arm used, metal cross arm quality weight, poor insulativity, easily causes flashover problem.

In order to solve the above mentioned problem of metal cross arm, develop a kind of compound cross-arm, compound cross-arm is typically by insulation mandrel And it is fixed on the full skirt composition on insulation mandrel.The both ends of the compound cross-arm disclosed in CN106088785A are provided with hanging wire gold utensil, The middle part of compound cross-arm is mutually fixedly connected with the body of rod of power transmission rod, and the mode being fixedly connected is punched on compound cross-arm, The compound cross-arm is fixed on power transmission rod using anchor ear and fastener, but punching can have a strong impact on its power on compound cross-arm Performance is learned, reduces its ability to bear to load.

Utility model content

The purpose of this utility model is to provide a kind of compound cross-arm and power transmission rod, to solve existing compound cross-arm and transmission of electricity When the body of rod of bar is fixed, the mechanical property of compound cross-arm can be impacted, the problem of so as to reduce its load ability to bear.

To achieve the above object, technical scheme is as follows used by the utility model：A kind of compound cross-arm is provided, this is compound Cross-arm is fixed on the body of rod of power transmission rod, and compound cross-arm includes：

Plug, insulating barrier and bearing member, insulating barrier and bearing member are coated and fixed on the outer peripheral face of plug, and bearing member is located at The middle part that plug is connected with the body of rod, insulating barrier is positioned at other regions in addition to middle part.

On the one hand, by presetting a bearing member at the position that plug is connected with the body of rod, when compound cross-arm is arranged on power transmission rod When upper, fixed load is applied directly on bearing member between the two, and without being consequently exerted on plug or insulating barrier, plug need not Punching, plug will not deform in itself, and insulating barrier will not also wear because of long-term stress, and the plug of insulating barrier cladding will not Exposure in atmosphere, avoids corrosion of the external environment condition to plug, and bearing member has enough intensity, and itself will not be because of length Phase stress and damage, so as to ensure that the mechanical property of compound cross-arm；

On the other hand, bearing member is located at the different zones of plug with insulating barrier, and the outer peripheral face in plug is coated and fixed, So that plug is not corroded by external environment condition, the influence to compound cross-arm mechanical property can be equally avoided；

Again, bearing member is located at the middle part that plug is connected with the body of rod, when the compound cross-arm is used cooperatively with power transmission rod, only needs Once mounting is that the arrangement of at least two-phase wire on compound cross-arm can be achieved, compared to fixing two complete one respectively in body of rod both sides The compound cross-arm of sample, mounting process is simple, reduces the complexity of work high above the ground.

Wherein, it is sealed connection between insulating barrier and bearing member.

Corrosion of the external environment conditions such as moisture to plug can further be avoided by being tightly connected between insulating barrier and bearing member, be reduced Influence to compound cross-arm mechanical property.

Wherein, insulating barrier is full skirt and/or sheath, and full skirt and/or sheath are tightly connected with bearing member.

Wherein, after bearing member cladding is fixed in the middle part of plug, other regions of insulating barrier on plug in addition to middle part are made It is coated and fixed.

After the plug of the compound cross-arm completes, after bearing member cladding is fixed in into the middle part of plug first, then in core Insulating barrier is coated and fixed in the outside of rod, makes simple production process, while is advantageous to the connection between insulating barrier and bearing member.

Wherein, bearing member is sleeve, and the inner wall shape of sleeve matches with being coated on the cross section of interior plug.

Wherein, sleeve is to be molded by metal stamping process.

Metal stamping process flow is simple, cost is relatively low, can be easy to the variously-shaped section of punching press, strong adaptability, meet The requirement of plug varying cross-section.

Wherein, compound cross-arm is fixed on the body of rod by fixing device.

Wherein, fixing device includes cross-arm accommodating member and body of rod connector, and cross-arm accommodating member is used to house sleeve, and the body of rod connects Fitting is used for connecting-rod body and cross-arm accommodating member.

Wherein, cross-arm accommodating member includes cross-arm anchor ear and connecting plate, and body of rod connector is body of rod anchor ear, and connecting plate is provided with The first installation coordinated with cross-arm anchor ear and the second installation coordinated with body of rod anchor ear；Cross-arm anchor ear wraps along circumferential the half of sleeve Fixed after enclosing sleeve by the first installation realization, body of rod anchor ear passes through the second installation along after the circumferential semi-surrounding body of rod of the body of rod and realized It is fixed.

Wherein, connecting plate is provided with the arcuate member being adapted with the body of rod towards the side of the body of rod.

Wherein, cross-arm accommodating member includes holding part and the first connection sheet on holding part, and body of rod connector includes embracing Hoop and the second connection sheet on anchor ear, holding part are used to house sleeve, anchor ear be arranged with the body of rod, the first connection sheet and the Two connection sheets are fixed by fastener.

Wherein, bearing member is sleeve mechanism, and sleeve mechanism includes sleeve and connecting plate, and sleeve covers are fixed in the outer of plug Side face, connecting plate are fixed in the side of sleeve, and connecting plate is used to be attached with the body of rod.

Connecting plate is provided with sleeve side, connection is realized directly between the body of rod using connecting plate, is realized using bearing member The effect that cross-arm side is fixed, simplify assemble flow, reduce installation complexity.

In order to solve the above technical problems, another technical scheme provided by the utility model is：A kind of power transmission rod is provided, including The body of rod and the above-mentioned compound cross-arm being fixed on the body of rod.

Brief description of the drawings

Fig. 1 to Fig. 5 is the schematic diagram of the utility model embodiment one,

Wherein：

Fig. 1 is the structural representation of compound cross-arm 10；

Fig. 2 is the structural representation of Fig. 1 middle sleeves 103；

Fig. 3 is the structural representation that compound cross-arm 10 is installed to by fixing device 11 on the body of rod 12；

Fig. 4 is the schematic perspective view of cross-arm accommodating member 110；

Fig. 5 is the structural representation of arcuate member on cross-arm accommodating member 110.

Fig. 6-Fig. 8 is the schematic diagram of the utility model embodiment two,

Wherein：

Fig. 6 is the structural representation of fixing device 21；

Fig. 7 is the structural representation of cross-arm accommodating member 210；

Fig. 8 is the structural representation of body of rod connector 211.

Fig. 9-Figure 11 is the schematic diagram of the utility model embodiment three,

Wherein：

Fig. 9 is the structural representation of compound cross-arm 30；

Figure 10 is the structural representation of sleeve mechanism 303；

Figure 11 is the structural representation that compound cross-arm 30 is connected on the body of rod 32.

Figure 12-Figure 15 is the schematic diagram of the utility model embodiment four,

Wherein：

Figure 12 is the structural representation of compound cross-arm 40；

Figure 13 is the structural representation of sleeve mechanism 403；

Figure 14 is the structural representation of body of rod connecting plate 43；

Figure 15 is the structural representation that compound cross-arm 40 is connected on the body of rod 42.

Embodiment

As requested, specific embodiment of the present utility model will be disclosed here.It is to be understood, however, that institute here The embodiment of disclosure is only exemplary of the present utility model, and it can be presented as various forms.Therefore, disclose here Detail be not to be considered as limiting, and be merely possible to claim basis and as be used for instruct this area Technical staff by practice it is any it is appropriate in a manner of differently apply representational basis of the present utility model, including using here The feature that disclosed various features and combination may not disclosed clearly here.

Embodiment one：

Please also refer to Fig. 1-Fig. 5.As shown in figure 1, the compound cross-arm 10 includes plug 101, insulating barrier 102 and bearing member 103, insulating barrier 102 and bearing member 103 are coated and fixed on the outer peripheral face of plug 101, and bearing member 103 is located at plug 101 and bar The middle part that body 12 connects, insulating barrier 102 is positioned at other regions in addition to middle part.

Specifically, plug 101 is the main composition important document of compound cross-arm 10, it is necessary to there is enough bearing strengths, is typically By pultrusion after glass fibre and resin mixing, it is of course also possible to by compression molding after glass fibre and resin mixing, or adopt With other technological formings, this is not limited.The optional polyurethane of resin, epoxy resin or vinylite etc..

Plug 101 can be solid, or at least have the body of a chamber, and the cross sectional shape of plug 101 is optional Circular, polygon or I-shaped, can be selected as needed in practical engineering application.The plug 101 of the present embodiment is solid The structure of rectangle.

Plug 101 is chronically exposed in air, easily by the corrosion of various natural causes such as light, electricity, water, acid etc., is made Phenomena such as intensity decreases being produced into surface aging, therefore usually require to handle the surface of plug 101, conventional way is In the Surface coating fixed insulation layer 102 of plug 101, it can further improve the insulating properties of plug 101 and/or play etch-proof Effect.

Insulating barrier 102 is chosen as full skirt 1021 and the sheath 1022 extended on plug 101, or is directly to be coated on core The sheath 1022 on the surface of rod 101, full skirt 1021 or sheath 1022 can use the silicon rubber of molding sulfidization molding to be made, or adopt It is made of the silicon rubber of integral injection molding, the insulating barrier 102 has good hydrophobicity and ageing resistance, service life height.

But the insulating barrier 102 does not have the ability of bearing load, if load is acted directly on insulating barrier 102, hold It is easily caused the cracking of insulating barrier 102 or comes off, so that plug 101 exposes in atmosphere, intensity decreases, under mechanical property Drop.

Therefore, the compound cross-arm 10 of the present embodiment, a bearing member 103 is preset at the position that plug 101 is connected with the body of rod 12, The bearing member 103 is usually metal bearing member 103, and being also not excluded for other certainly has the material bearing member of sufficient intensity, and this holds Power part 103 directly can be connected with the body of rod 12, or be attached by extra fixing device 11, no matter any connection side Formula, all carry out punching without all plugs 101 and set to realize connection, the load being fixedly connected all is to be applied directly to bearing member On 103, it is delivered to again on plug 101 by bearing member 103, insulating barrier 102 will not be caused to damage and make the periphery of plug 101 Face exposes in atmosphere.

As shown in Fig. 2 bearing member 103 is chosen as sleeve 103, sleeve 103 is the hollow structure of both ends open, sleeve 103 Inner wall shape adapt to plug 101 cross sectional shape, be arranged to rectangle.Sleeve 103 is optional to be molded by metal stamping process, stream Journey is simple, cost is relatively low, can be easy to the variously-shaped section of punching press, strong adaptability, meet the requirement of plug varying cross-section；Set Cylinder 103 is also chosen as steel sectional material steel pipe.

After plug 101 is molded by pultrude process, sleeve 103 is set to be fixed in plug 101 by way of mucilage binding or crimping On middle part, the middle part is in no way limited in the region of the middle of plug 101, and the end of left and right two of the plug 101 is used for connecting Hanging wire gold utensil or pin insulator (not shown), middle part refer to the region in addition to two ends on the plug 101.

The injection molding on the plug 101 of the both sides of sleeve 103 of full skirt 1021 and sheath 1022, the He of full skirt 1021 per side The injection of 1022 optional integrated injection molding of sheath, full skirt 1021 and sheath 1022 can avoid the region at the hanging wire gold utensil of end, Because sleeve 103 is provided with flange 1031, being provided with for flange 1031 connects beneficial to the sealing between sleeve 103 and sheath 1022 Connect.

It should be noted that for the plug 101 of end regions, extension can be made before full skirt 1021 and sheath 1022 are molded Line gold utensil is first fixed in end by way of mucilage binding or crimping, then the plug 101 at except sleeve 103 and hanging wire gold utensil is enterprising Row injection.Also it is optional to cause full skirt 1021 and sheath 1022 to be moulded in the surface of end regions, hanging wire gold utensil or pin type insulation The setting energy meet demand of son, does not do specific discussion herein.

Sleeve 103 is fixed in the middle part of plug 101, and coats the whole outer peripheral face in middle part, full skirt 1021 and sheath 1022 Whole outer peripheral faces in other regions of the core rod 101 in addition to middle part and end, sleeve 103 and full skirt 1021 and sheath 1022 it Between be tightly connected so that plug 101 is covered by sleeve 103 and sheath 1022, from the corrosion of external environment condition.

Fig. 3-Fig. 5 is referred to, above-mentioned compound cross-arm 10 is fixed on the body of rod 12 by extra fixing device 11, it is fixed Device 11 includes cross-arm accommodating member 110 and body of rod connector 111, and cross-arm accommodating member 110 is used to house sleeve 103, body of rod connection Part 111 is used for connecting-rod body 12 and cross-arm accommodating member 110.

Cross-arm accommodating member 110 includes cross-arm anchor ear 1101 and connecting plate 1102, and cross-arm anchor ear 1101 includes being located at the body of rod 12 Two U-shaped anchor ears 1101 of the left and right sides, connecting plate 1102 are a rectangular panel；Body of rod connector 111 is body of rod anchor ear 111, Body of rod anchor ear 111 includes two U-shaped anchor ears 111 positioned at compound cross-arm both sides about 10；It is provided with connecting plate 1102 corresponding Four mounting holes 1103 of cross-arm anchor ear 1101, and four mounting holes 1104 of corresponding body of rod anchor ear 111, the court of connecting plate 1102 Arcuate member 1105 is provided with to the side of the body of rod 12, the outer surface of the degree of crook and the body of rod 12 of arcuate member 1105 is adapted, arc Part 1105 can increase the contact area of connecting plate 1102 and the body of rod 12, make fixed more firm.

Consider the shape of sleeve 103 and fixed convenience, U-shaped anchor ear 1101 includes rectangle hoop 1107 and is fixed in rectangle Two parts of column 1108 on hoop 1107, rectangle hoop 1107 adapt to the shape of sleeve 103, and column 1108 passes through mounting hole It is fixed after 1103 using bolt.

During actual installation, compound cross-arm 10 can be installed with cross-arm anchor ear 1101 first, i.e. two U-shaped anchor ears 1101 Along after the circumferential semi-surrounding sleeve 103 of sleeve 103, through mounting hole 1103 after be fixed using bolt, compound cross-arm 10 exists On the body of rod 12 during suitable position, it is fixed using two U-shaped anchor ears 111 through the mounting hole 1104 on connecting plate 1102, So as to which compound cross-arm 10 is fixed on the body of rod 12.

U-shaped anchor ear 1101 is fixed on sleeve 103, and in During Process of Long-term Operation, U-shaped anchor ear 1101 is possible in sleeve Horizontally slip on 103, sheath 1022 can be caused to damage when sliding into 103 edge of sleeve, therefore in order to avoid this slip, The position setting groove (not shown) that U-shaped anchor ear 1101 is corresponded on sleeve 103 can be selected in, plays spacing effect.

When the compound cross-arm 10 of the present embodiment is fixed on the body of rod 12, it is fixed on due to being that middle part is corresponding on the body of rod 12, it is compound Two ends of cross-arm 10 can be used to support wire, therefore can realize the arrangement of at least two phase conductors, why says so, is Because in some cases .., the middle part of compound cross-arm 10 may also set up hanging wire gold utensil or pin insulator to support wire, this is multiple It is easy for installation to close cross-arm 10, simplifies the complexity of high-altitude application；

Above-mentioned compound cross-arm 10 is commonly used to 35kV and following voltage domain, such as 10kV, 20kV or 35kV distribution wire Lu Zhong.In long-term circuit running, middle part that compound cross-arm 10 is connected with the body of rod 12, load acts directly on sleeve 103 On, sleeve 103 has enough bearing strengths, avoids impacting the mechanical property of plug 101.

In other specific embodiments, insulating barrier is also chosen as coating anti-corrosion function layer, such as fluorine in mandrel outer side face Carbon paint, F-C paint certainly, the fluorine can be also coated in the outer peripheral face of bearing member coated in other regions that bearing member is removed on plug Carbon paint so that seamless contact between F-C paint and bearing member；The anti-corrosion function layer does not have the ability of bearing load equally, if Load is acted directly on the anti-corrosion function layer, easily causes coming off for it, so that core exposure is in atmosphere, intensity drop It is low, mechanical properties decrease.

In other specific embodiments, groove or projection can be set on sleeve, so as to being placed on sleeve Cross-arm accommodating member play position-limiting action.

Embodiment two：

In the present embodiment, the structure of compound cross-arm is similar with embodiment one, will not be repeated here.The difference is that compound cross-arm When being fixed to by fixing device on the body of rod, the fixing device is different.

As Figure 6-Figure 8, the fixing device 21 includes cross-arm accommodating member 210 and body of rod connector 211.

Cross-arm accommodating member 210 includes holding part 2101 and the connection sheet 2102 positioned at the both sides of holding part 2101.Holding part 2101 are used to house the sleeve 103 on compound cross-arm 10, and connection sheet 2102 is used for connecting-rod body connector 211.Holding part 2101 It is the housing that a section is hollow rectangle, inner walls match with the outer surface for waiting to house compound cross-arm.Certainly, housing Intracavity section can also be circular or other polygons.

Body of rod connector 211 includes U-shaped anchor ear 2110 and the connection sheet 2111 being connected with the U-shaped both sides of anchor ear 2110.U-shaped armful Hoop 2110 is used to house the body of rod 12, and the surface profiles of the inner surface of U-shaped anchor ear 2110 and its body of rod 12 housed.Connecting Four mounting holes 2112 are provided with piece 2111, four mounting holes corresponding with connection sheet 2111 are provided with connection sheet 2102 2103。

Compound cross-arm is fixed on the body of rod by the fixing device 21.Sleeve 103 is located in holding part 2101, holding part 2101 locally surround compound cross-arm along sleeve outer peripheral face, and U-shaped anchor ear 2110 is local to surround the body of rod, and fastener 212 passes through connection sheet 2111 holes corresponding with connection sheet 2102 link together body of rod connector 211 and cross-arm accommodating member 210, fastener 212 It is chosen as bolt.

Embodiment three：

As Figure 9-Figure 11, compound cross-arm 30 includes plug 301, insulating barrier 302 and bearing member 303.Plug 301 is sky The rectangular tube of the heart, filled polyurethane foam in plug 301；Insulating barrier 302 is the silicon rubber of the integrated injection molding on plug 301 Glue full skirt 3021 and sheath 3022；Bearing member 303 is sleeve mechanism 303, usually metal material, including sleeve 3031 and connection Plate 3032, sleeve 3031 coat the outer peripheral face for being fixed in plug 301, and connecting plate 3032 is fixed in the side of sleeve 3031, connect Plate 3032 is used to be attached with the body of rod 32.

After plug 301 is molded by pultrude process, sleeve mechanism 303 is secured to plug by way of mucilage binding or crimping On 301 so that whole outer peripheral faces at the middle part of 3031 core rod of sleeve 301, distinguish in the both sides of sleeve 3031 integrated injection molding into Type silicon rubber umbrella skirt 3021 and sheath 3022, sleeve 3031 are provided with flange 3034, the setting of flange 3034 be advantageously implemented with The sealed connection of sheath 3022.

Sleeve 3031 is provided with connecting plate 3032 towards the side of the body of rod 32, and connecting plate 3032 is optional with the Integral mold of sleeve 3031 It is molded, or be fixed on by way of welding or being bonded on sleeve 3031.Connecting plate 3032 by body of rod connector 31 with The body of rod 32 is attached, and body of rod connector 31 includes the U-shaped anchor ear 31 positioned at compound cross-arm both sides about 30, U-shaped 31 sets of anchor ear The outer peripheral face that the upper half of the body of rod 32 surrounds the body of rod 32 is located at, connecting plate 3032 is provided with four mounting holes coordinated with U-shaped anchor ear 31 3033, U-shaped anchor ear is fastened after passing through mounting hole 3033 using bolt so that compound that cross-arm 30 is fixed on the body of rod 32.

Compound cross-arm 30 is fixed on the body of rod 32, in During Process of Long-term Operation, the body of rod 32 and the compound connecting portion of cross-arm 30 Load action on sleeve 3031, insulating barrier 302 will not be caused to damage, avoid corrosion of the external environment condition to plug 301.

In other specific embodiments, arcuate member can be set on connecting plate 3032, arcuate member is welded on connecting plate 3032 On, lifting surface area can be increased when being connected with electric pole, made fixed more firm.

Example IV：

Please also refer to Figure 12-Figure 15.Compound cross-arm 40 includes plug 401, insulating barrier 402 and bearing member 403.Plug 401 be solid circular rod, and insulating barrier 402 includes the silicon rubber umbrella skirt 4021 and sheath 4022 of integrated injection molding；Bearing member 403 be sleeve mechanism 403, usually metal material, including sleeve 4031 and connecting plate 4032, and the cladding of sleeve 4031 is fixed in core The outer peripheral face of rod 401, the neck of arc is set on connecting plate 4032, sleeve 4031 is connected to connecting plate by way of welding In 4032 neck.

After plug 401 is molded by pultrude process, sleeve mechanism 403 is secured to plug by way of mucilage binding or crimping On 401 so that whole outer peripheral faces at the middle part of 4031 core rod of sleeve 401, distinguish in the both sides of sleeve 4031 integrated injection molding into Type silicon rubber umbrella skirt 4021 and sheath 4022, sleeve 4031 are provided with flange 4034, the setting of flange 4034 be advantageously implemented with The sealed connection of sheath 4022.

Connecting plate 4032 directly can be attached with the body of rod 42, as what is used in embodiment three sets U-shaped armful on the body of rod 42 Hoop, after U-shaped anchor ear passes through the connecting hole on connecting plate 4032, it is attached by bolt.Specific in the present embodiment, such as Figure 14 It is shown, in order to ensure the versatility of engineer applied, another body of rod connecting plate 43 is set between connecting plate 4032 and the body of rod 42, even Fishplate bar 4032 is provided with mounting hole 4033, corresponding with the mounting hole 431 that body of rod connecting plate 43 is provided with, and be able to will be connected by bolt Plate 4032 is fixed on body of rod connecting plate 43, and also compound cross-arm 40 is fixed on body of rod connecting plate 43.

Mounting hole 432 is additionally provided with body of rod connecting plate 43, for being attached with U-shaped anchor ear 44, body of rod connecting plate 43 leans on The side of the nearly body of rod 42 is provided with arcuate member 435, can increase the contact area with the body of rod 42, makes fixed more firm.

Compound cross-arm 40 is erected on the body of rod 42, after the U-shaped semi-surrounding body of rod 42 of anchor ear 44, through mounting hole 432, then profit It is fixed with nut, so that compound cross-arm 40 is fixed on the body of rod 42.

The top of body of rod connecting plate 43 is additionally provided with the auricle 433 of extension, and auricle 433 is provided with mounting hole 434, mounting hole 434 can be used for being attached with top phase cross-arm, realize the arrangement of single time three-phase conducting wire, do not do specific discussion here.

Compound cross-arm 40 is fixed on the body of rod 42, without being punched on compound cross-arm 40, in During Process of Long-term Operation, and the body of rod 42 with the load action of the compound connecting portion of cross-arm 40 in sleeve mechanism 403, insulating barrier 402 will not be caused to damage, avoided Corrosion of the external environment condition to plug 401.

In one-example IV of above example, bearing member is arranged to sleeve or sleeve mechanism, this have the advantage that set Realize and be seamlessly connected between cylinder and plug, set on sleeve without punching, can preferably avoid the external environment conditions such as moisture to plug Corrosion, but not bearing member is limited in sleeve type mechanism, for example, changing sleeve into two anchor ears is set in plug On, fastened between two anchor ears by bolt, the effect being coated and fixed can be also realized, although some subtract on anticorrosion ability It is weak, but equally in scope of protection of the utility model.

Technology contents and technical characterstic of the present utility model have revealed that as above, it being understood, however, that of the present utility model Under creative ideas, those skilled in the art can make various changes and improve to said structure and material, including independent here The combination for the technical characteristic for disclosing or being claimed, it will be apparent that other combinations including these features.These deformations and/or combination Each fall within the technical field involved by the utility model, and fall into the protection domain of the utility model claims.

Claims (13)

1. a kind of compound cross-arm, the compound cross-arm is fixed on the body of rod of power transmission rod, it is characterised in that the compound cross-arm bag Include：

Plug, insulating barrier and bearing member, the insulating barrier and the bearing member are coated and fixed on the outer peripheral face of the plug, institute State bearing member and be located at the middle part that the plug is connected with the body of rod, the insulating barrier is positioned at other areas in addition to the middle part Domain.

2. compound cross-arm as claimed in claim 1, it is characterised in that connect between the insulating barrier and the bearing member for sealing Connect.

3. compound cross-arm as claimed in claim 2, it is characterised in that the insulating barrier is full skirt and/or sheath, the full skirt And/or between sheath and the bearing member for be tightly connected.

4. compound cross-arm as claimed in claim 1, it is characterised in that the bearing member cladding is fixed in the middle part of the plug Afterwards, make other regions cladding of the insulating barrier on the plug in addition to the middle part affixed.

5. compound cross-arm as claimed in claim 1, it is characterised in that the bearing member is sleeve, the inwall shape of the sleeve Shape matches with being coated on the cross section of the interior plug.

6. compound cross-arm as claimed in claim 5, it is characterised in that the sleeve is to be molded by metal stamping process.

7. compound cross-arm as claimed in claim 5, it is characterised in that the compound cross-arm is fixed on described by fixing device On the body of rod.

8. compound cross-arm as claimed in claim 7, it is characterised in that the fixing device includes cross-arm accommodating member and the body of rod connects Fitting, the cross-arm accommodating member are used to house the sleeve, and the body of rod connector is used to connect the body of rod and the cross-arm Accommodating member.

9. compound cross-arm as claimed in claim 8, it is characterised in that the cross-arm accommodating member includes cross-arm anchor ear and connection Plate, the body of rod connector are body of rod anchor ear, the connecting plate be provided with the first installation for coordinating with the cross-arm anchor ear and with The second installation that the body of rod anchor ear coordinates；The cross-arm anchor ear passes through institute along after sleeve described in the circumferential semi-surrounding of the sleeve State the first installation and realize fixation, the body of rod anchor ear is pacified along after the body of rod described in the circumferential semi-surrounding of the body of rod by described second Dress, which is realized, to be fixed.

10. compound cross-arm as claimed in claim 9, it is characterised in that the side of the connecting plate towards the body of rod is provided with The arcuate member being adapted with the body of rod.

11. compound cross-arm according to claim 8, it is characterised in that the cross-arm accommodating member includes holding part and is located at The first connection sheet on the holding part, the body of rod connector include anchor ear and the second connection sheet on the anchor ear, The holding part is used to house the sleeve, the anchor ear be arranged with the body of rod, first connection sheet and described second Connection sheet is fixed by fastener.

12. compound cross-arm as claimed in claim 1, it is characterised in that the bearing member is sleeve mechanism, the sleeve mechanism Including sleeve and connecting plate, the sleeve covers are fixed in the outer peripheral face of the plug, and the connecting plate is fixed in the sleeve Side, the connecting plate be used for be attached with the body of rod.

A kind of 13. power transmission rod, it is characterised in that including the body of rod and be fixed on the body of rod such as any one of claim 1-12 Described compound cross-arm.