CN106053897A - Cross arm shielding cover for power detection - Google Patents
Cross arm shielding cover for power detection Download PDFInfo
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- CN106053897A CN106053897A CN201610406698.6A CN201610406698A CN106053897A CN 106053897 A CN106053897 A CN 106053897A CN 201610406698 A CN201610406698 A CN 201610406698A CN 106053897 A CN106053897 A CN 106053897A
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- shaped
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- semicircular cylinder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
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Abstract
The invention provides a cross arm shielding cover for power detection. The shielding cover is used for shielding a live cross arm, and comprises a cross arm shielding cover body, which comprises a first body and a second body; a wire fixation mechanism, which comprises a plurality of arc wire slots; an insulation barrier plate, which comprises two fan-shaped plate bodies; and a detection device, which comprises an alarm, an electric field sensor and a controller. The second body is slidably sleeved in the first body, so that the second body can extend and retract in the first body to realize adjustment of the length of the shielding cover according to the length of the cross arm, and the single shielding cover is allowed to be suitable for cross arms in different sizes; and meanwhile, through the detection device, the current value of the cross arm can be detected at any time, and when the current value surpasses the human body safety value, an alarm is given in time through the alarm device, thereby improving safety of the shielding cover.
Description
Technical field
The present invention relates to electric power detection, safeguard apparatus field.It is more particularly related to a kind of electric power detection is horizontal
Load mask.
Background technology
For ensureing the safety and stablization that electrical network is powered, needing periodically to detect power equipment and transform, great majority are
The livewire work in high-altitude, for ensureing that electrical body must be dielectrically separated from by the personal safety of operating personnel with grounding body, i.e. pacifies
Dress insulating shielding device.In prior art, frequently with insulated target and mask, cross-arm is covered, but blanket is due to cross-arm shape
Shape is special, wastes time and energy by insulated target encapsulation process, and after parcel, outward appearance is irregular, attached due to cross-arm ferrum in encapsulation process
The corner burr easy Damage to insulation blanket of part, brings potential safety hazard to livewire work;Existing mask size structure is more solid
Fixed, size is non-adjustable, and cross-arm has different size size, limit the range of single mask, simultaneously mask
Function is more single, does not possess the voltage or current value checking that cross-arm is born, and reminds the function of operating personnel in time.
Therefore it provides a kind of adjustable, there is the cross-arm insulated shielding cover of warning function, to realize cross-arm is covered,
It is current those skilled in the art technical problems urgently to be resolved hurrily.
Summary of the invention
It is an object of the invention to solve at least the above, and the advantage that at least will be described later is provided.
It is a still further object of the present invention to provide a kind of electric power detection cross arm shielding cover, the present invention is by the first noumenon
Sheathed second body of middle slip, the second body can stretch in the first noumenon, it is achieved regulates mask according to the length of cross-arm
Length so that single mask can be applicable to many cross-arm of size, be provided with detection device simultaneously, at any time cross-arm held
The current value size being subject to detects, and by warning devices and alarm when beyond human-body safety value, improves mask
Safety.
In order to realize according to object of the present invention and further advantage, it is provided that a kind of electric power detection cross-arm covers
Cover, it is for covering the cross-arm of livewire work, comprising:
Cross-arm cover body, it includes the first noumenon of hollow cylinder structure of open at one end and slides even with described the first noumenon
The second body that is that connect and that extend along described the first noumenon axis direction, the coaxial line that described second body includes be arrangeding in parallel
Interior semicircular cylinder and outer semicircular cylinder, described outer semicircular cylinder between described interior semicircular cylinder and described the first noumenon, described outer semicircle
Cylinder can slide along the axis direction of described the first noumenon, and described interior semicircular cylinder can rotate relative to described outer half cylinder annular, described
The first side of interior semicircular cylinder and the second side of described outer semicircular cylinder are provided with the Magnet that can attract each other so that described interior semicircle
When the most described outer half rotary drum of cylinder is to extreme position, described interior semicircular cylinder becomes to accommodate part described with described outer semi-cylindrical shaped
The class cylinder of the hollow of cross-arm;Described the first noumenon is provided with two that extend and relative open slots along its axis direction, and two
Described the first noumenon is separated into Part I and the Part II of two non-touching half-cylinder structure by individual described open slot,
Multiple and described the first noumenon coaxial line the first arc-shaped through-hole is offered respectively on described Part I and described Part II
With the second arc-shaped through-hole, described first arc-shaped through-hole and described second arc-shaped through-hole relatively and the plane that formed and institute
The bottom surface stating the first noumenon is parallel, and described first arc-shaped through-hole and described second arc-shaped through-hole are all along the axis of described the first noumenon
Arranging in direction, described interior semicircular cylinder and described outer semicircular cylinder offers respectively and described first arc-shaped through-hole and described second arc
The 3rd arc-shaped through-hole that shape through hole is corresponding and the 4th arc-shaped through-hole;It is equipped with successively on the inwall of the bottom surface of described the first noumenon
Ground floor soft rubber cushion, compression spring and second layer soft rubber cushion, the middle part of described second layer soft rubber cushion is provided with groove;
Wire fixed mechanism, it includes multiple accommodated wire being arranged on described Part I and described Part II
Arc metallic channel, multiple described metallic channels are positioned at described second body near one end of described the first noumenon blind end and described
Between the blind end of the first noumenon, multiple described metallic channels all connect with described open slot and along the axis side of described the first noumenon
Sliding in arrangement, the inwall of described open slot and be provided with multiple striped blocks, a described striped blocks is slidably led to described in one
The overthe openings of wire casing also forms the closing space accommodating wire;The inwall of described metallic channel is provided with arc felt pad, described
Felt pad includes inner polytetrafluoroethyllayer layer, metal net layer, vacuum bed course and polytetrafluorethylene outer layer from inside to outside;
Insulation barrier, it includes two the fan-shaped plate bodys being generally aligned in the same plane, two that two described fan-shaped plate bodys are relative
Being respectively equipped with semicircular indentations on side, described semicircular indentations inwall is provided with annular sponge body, two described fan-shaped plate bodys
It is connected with the first linking arm and second linking arm of pincerlike handle respectively so that the unlatching/merging of described pincerlike handle can carry
The relative movement of dynamic two described fan-shaped plate bodys, a described fan-shaped plate body can pass through described first arc-shaped through-hole and the described 3rd
Arc-shaped through-hole enters described the first noumenon and the inside of described second body, and another described fan-shaped plate body can be by described second
Arc-shaped through-hole and described 4th arc-shaped through-hole enter described the first noumenon and the inside of described second body, two described fanning strips
Body forms centre and stays round-meshed loop configuration, forms the envelope accommodating described cross-arm with described the first noumenon and described second body
Close space;
Detection device, it includes the siren being arranged between described ground floor soft rubber cushion and described spring, is arranged on institute
The electric-field sensor stating inside grooves and the controller electrically connected with described siren and electric-field sensor;Described controller sets
It is set to receive field intensity on the described cross-arm of described electric-field sensor detection change and be converted into current digital value, by current digital value
Compare with the threshold value pre-set, if this current digital value is more than threshold value, then start described siren;If being not more than, then
Do not start.
Preferably, described electric power detection cross arm shielding cover, described the first noumenon, described second body and described fan
Being coated with one layer of abrasion-proof insulating coating on the surface of shape plate body, described coatings includes the raw material of following parts by weight: poly-
Vinyl acetate resin 45 parts, silane coupler 0.1 part, Kaolin 9 parts, feldspar in powder 1 part, 0.3 part of root of Herba Menthae Haplocalycis powder, nano inorganic
Filler 15 parts, dimethylbenzene 40 parts, polyolefin-wax 2 parts, pine ester 0.2 part and defoamer 0.2 part;
Wherein, described nanometer is to be the wollastonite in powder of 1:1.2:1.4:1:1.5:1.6, Talcum by weight ratio without tassement polaire
The mixture that powder, bentonite, Gypsum Fibrosum powder, attapulgite and aluminium oxide are formed.
Preferably, described electric power detection cross arm shielding cover, along its axis direction on the inwall of described the first noumenon
Being provided with the first chute, the outer wall of the blind end of the close described the first noumenon of described outer semicircular cylinder is provided with the first slide block, described
First slider containment is in described first chute and can slide wherein, it is achieved described outer semicircular cylinder can the most described the first noumenon
Slip along its axis direction.
Preferably, described electric power detection cross arm shielding cover, the inwall of described outer semicircular cylinder is provided with and is coaxial therewith
Second chute of the arc of line, the outer wall of described interior semicircular cylinder is provided with the second slide block, and described second slider containment is in described
In two chutes, and can slide wherein, it is achieved described interior semicircular cylinder can rotate relative to the annular of described outer semicircular cylinder.
Preferably, described electric power detection cross arm shielding cover, described first arc-shaped through-hole and described second arc lead to
Described in Kong Junyu, the first chute does not contacts, and described 3rd arc-shaped through-hole and described 4th arc-shaped through-hole are all with described second chute not
Contact.
Preferably, described electric power detection cross arm shielding cover, described siren is alarm bell.
Preferably, described electric power detection cross arm shielding cover, described the first noumenon, described interior semicircular cylinder and described outside
The diameter of semicircular cylinder is than for 1.2:1.1:1.
The present invention at least includes following beneficial effect:
1, the present invention is by sliding sheathed second body in the first noumenon, and the second body can stretch in the first noumenon,
Realize regulating the length of mask according to the length of cross-arm so that single mask can be applicable to many cross-arm of size, together
Time be provided with detection device, the current value size born cross-arm at any time detects, and logical when beyond human-body safety value
Cross warning devices and alarm, improve the safety of mask;
2, the second body of present invention design includes two relatively turnable interior semicircular cylinders and outer semicircular cylinder, outer semicircular cylinder
Can be along the inwall being connected to the first noumenon of the first noumenon axial sliding movement, interior semicircular cylinder can rotate relative to outer half cylinder annular,
Being enclosed within by mask on cross-arm to be covered, according to cross-arm length to be covered, the length such as cross-arm is not more than the first noumenon
Along the length of its axis direction, outer semicircular cylinder is located close to the limit primary importance of the first noumenon blind end, and interior semicircular cylinder is with outer
Semicircular cylinder is parallel;If the length of cross-arm is more than the length along its axis direction lower of the first noumenon, by outer semicircular cylinder away from
The blind end of the first noumenon slides into the length position not less than the length of cross-arm of mask;
3, after regulating the length of mask, by wire along open slot, it is held in metallic channel respectively, and striped blocks is sliding
Move the opening part to metallic channel, form the closing space of multiple receiving wire, it is to avoid lead during electric power detection construction operation
The slip of line or come off, by interior semicircular cylinder relative to outer half rotary drum to extreme position, interior semicircular cylinder and outer semicircular cylinder pass through magnetic
Ferrum connects fixing, forms the space accommodating cross-arm with the first noumenon, by two fan-shaped plate bodys respectively by the first arc-shaped through-hole and
3rd arc-shaped through-hole and the second arc-shaped through-hole and the 4th arc-shaped through-hole enter inside mask, and two fanning strip bodies form centre and stay
Round-meshed loop configuration, forms the closing space accommodating described cross-arm with the first noumenon and the second body;
4, adjustable length of the present invention, it is adaptable to various sizes of cross-arm, improves the economical and practical value of the present invention, with
Time devise the insulation barrier of two fan-shaped plate bodys, two fan-shaped plate bodys can be the semicircle of equal diameters, it is also possible to is straight
The unequal sector in footpath, two fan-shaped plate bodys insert inside mask, and circular hole is left in centre so that insulation barrier is just fastened on
On the electric pole of cross-arm afterbody, the present invention can be completely obscured by cross-arm, and is individually fixed in metallic channel by wire, it is to avoid cross-arm
With wire rocking or coming off in operation process;
5, the present invention designs detection device, by the current value on electric-field sensor Real-time Collection cross-arm, and by current value
Passing to controller, current value is compared by controller with the threshold value being pre-designed, if current value is more than threshold value, then controller
Start siren, remind the current anomaly on staff's cross-arm in time, and the current anomaly on cross-arm is usually by circuit event
Barrier causes, and so can be prevented effectively from operating personnel and construct in the case of not knowing line fault the casualties caused;
6, on the surface of the first noumenon, the second body and fan-shaped plate body, coat one layer of abrasion-proof insulating coating, improve this
The insulating properties of heat resistant and wear resistant of invention, have safely provided strong guarantee for staff.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will be by this
Invention research and practice and be understood by the person skilled in the art.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Structural representation when Fig. 2 is that described in electric power detection cross arm shielding cover of the present invention, second body is extracted out;
Fig. 3 is the described inner cylinder of electric power detection insulated shielding cover of the present invention knot when turning to extreme position
Structure schematic diagram;
Fig. 4 is the structural representation of insulation barrier of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail, to make those skilled in the art's reference
Description word can be implemented according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term do not allot one or many
Other element individual or the existence of a combination thereof or interpolation.
It should be noted that experimental technique described in following embodiment, if no special instructions, it is conventional method, institute
State reagent and material, if no special instructions, the most commercially obtain.
In describing the invention, term " laterally ", " longitudinally ", " on ", D score, "front", "rear", "left", "right", " perpendicular
Directly ", orientation or the position relationship of the instruction such as " level ", " top ", " end ", " interior ", " outward " is based on orientation shown in the drawings or position
Put relation, be for only for ease of and describe the present invention and simplify description, be not to indicate or imply that the device of indication or element are necessary
There is specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
As shown in figures 1-4, the present invention provides a kind of electric power detection cross arm shielding cover, and it is for covering livewire work
Cross-arm, comprising:
Cross-arm cover body, it includes the first noumenon 1 of hollow cylinder structure of open at one end and slides with described the first noumenon 1
The second body 2 that is that connect and that extend along described the first noumenon 1 axis direction, it is same that described second body 2 includes be arrangeding in parallel
The interior semicircular cylinder 22 of axis and outer semicircular cylinder 21, described outer semicircular cylinder 21 is positioned at described semicircular cylinder 22 and described the first noumenon 1
Between, described outer semicircular cylinder 21 can along described the first noumenon 1 axis direction slide, described interior semicircular cylinder 22 can the most described outside
Semicircular cylinder 21 annular rotates, and the first side of described interior semicircular cylinder 22 and the second side of described outer semicircular cylinder 21 are provided with can be mutual
The Magnet attracted so that when the most described outer semicircular cylinder 21 of described interior semicircular cylinder 22 turns to extreme position, described interior semicircular cylinder
22 and described outer semicircular cylinder 21 form the class cylinder of hollow accommodating the described cross-arm of part;Described the first noumenon 1 is provided with two
That extend along its axis direction and relative open slot 11, described the first noumenon 1 is separated into two by two described open slots 11
The Part I 12 of non-touching half-cylinder structure and Part II 13, on described Part I 12 and described Part II 13
Offer multiple and described the first noumenon 1 coaxial line the first arc-shaped through-hole 121 and the second arc-shaped through-hole 131, an institute respectively
State the end of plane and described the first noumenon 1 that the first arc-shaped through-hole 121 second arc-shaped through-hole 131 described with is relative and is formed
Face is parallel, and described first arc-shaped through-hole 121 and described second arc-shaped through-hole 131 are all arranged along the axis direction of described the first noumenon 1
Cloth, described interior semicircular cylinder 22 and described outer semicircular cylinder 21 offers respectively and described first arc-shaped through-hole 121 and described second
The 3rd arc-shaped through-hole 211 and the 4th arc-shaped through-hole 221 that arc-shaped through-hole 131 is corresponding;The inwall of the bottom surface of described the first noumenon 1
On be equipped with ground floor soft rubber cushion, compression spring and second layer soft rubber cushion successively, the middle part of described second layer soft rubber cushion is provided with recessed
Groove;
Wire fixed mechanism, it include multiple be arranged on described Part I 12 and described Part II 13 accommodate
The arc metallic channel 31 of wire, multiple described metallic channels 31 are positioned at described second body 2 near described the first noumenon 1 blind end
Between the blind end of one end and described the first noumenon 1, multiple described metallic channels 31 all connect and along described with described open slot 11
The axis direction arrangement of the first noumenon 1, the inwall of described open slot 11 slides and is provided with multiple striped blocks 32, a described strip
Block 32 slidably to the overthe openings of a described metallic channel 31 and formed accommodate wire closing space;Described metallic channel 31
Inwall is provided with arc felt pad, described felt pad include from inside to outside inner polytetrafluoroethyllayer layer, metal net layer, vacuum bed course and
Polytetrafluorethylene outer layer;
Insulation barrier, it includes two the fan-shaped plate bodys 41 being generally aligned in the same plane, and two described fan-shaped plate bodys 41 are relative
Being respectively equipped with semicircular indentations 42 on two sides, described semicircular indentations 42 inwall is provided with annular sponge body, described in two
Fan-shaped plate body 41 is connected with the first linking arm 43 and second linking arm 44 of pincerlike handle respectively so that opening of described pincerlike handle
Opening/merge the relative movement that can drive two described fan-shaped plate bodys 41, a described fan-shaped plate body 41 can be by described first
Arc-shaped through-hole 121 and described 3rd arc-shaped through-hole 211 enter described the first noumenon 1 and the inside of described second body 2, another
Described fan-shaped plate body 41 can enter described the first noumenon 1 by described second arc-shaped through-hole 131 and described 4th arc-shaped through-hole 221
With the inside of described second body 2, two described fan-shaped plate bodys 41 form centre and stay round-meshed loop configuration, with described first
Body 1 and described second body 2 form the closing space accommodating described cross-arm;
Detection device, it includes the siren being arranged between described ground floor soft rubber cushion and described spring, is arranged on institute
The electric-field sensor stating inside grooves and the controller electrically connected with described siren and electric-field sensor;Described controller sets
It is set to receive field intensity on the described cross-arm of described electric-field sensor detection change and be converted into current digital value, by current digital value
Compare with the threshold value pre-set, if this current digital value is more than threshold value, then start described siren;If being not more than, then
Do not start.
In technique scheme, adjustable length of the present invention, it is adaptable to various sizes of cross-arm, improve the present invention's
Economical and practical value, devises the insulation barrier of two fan-shaped plate bodys 41 simultaneously, and two fan-shaped plate bodys 41 can be equal diameters
Semicircle, it is also possible to being the unequal sector of diameter, two fan-shaped plate bodys 41 insert inside mask, and circular hole is left in centre,
Insulation barrier is just fastened on the electric pole of cross-arm afterbody, and the present invention can be completely obscured by cross-arm, and is fixed by wire
In metallic channel 31, it is to avoid cross-arm and wire rocking or coming off in operation process.
In another kind of technical scheme, described electric power detection cross arm shielding cover, described the first noumenon 1, described second
Being coated with one layer of abrasion-proof insulating coating on the surface of body 2 and described fan-shaped plate body 41, described coatings includes following heavy
The raw material of amount number: polyvinyl acetate resin 45 parts, silane coupler 0.1 part, Kaolin 9 parts, feldspar in powder 1 part, root of Herba Menthae Haplocalycis
0.3 part of powder, nanometer inorganic filler 15 parts, dimethylbenzene 40 parts, polyolefin-wax 2 parts, pine ester 0.2 part and defoamer 0.2 part;
Wherein, described nanometer is to be the wollastonite in powder of 1:1.2:1.4:1:1.5:1.6, Talcum by weight ratio without tassement polaire
The mixture that powder, bentonite, Gypsum Fibrosum powder, attapulgite and aluminium oxide are formed.Improve the insulation of the heat resistant and wear resistant of the present invention
Performance, has safely provided strong guarantee for staff.
In another kind of technical scheme, described electric power detection cross arm shielding cover, edge on the inwall of described the first noumenon 1
Its axis direction is provided with the first chute 14, and the outer wall of the blind end of the close described the first noumenon 1 of described outer semicircular cylinder 21 sets
Having the first slide block, described first slider containment is in described first chute 14 and can slide wherein, it is achieved described outer semicircular cylinder
21 can the most described the first noumenon 1 along the slip of its axis direction.
In another kind of technical scheme, described electric power detection cross arm shielding cover, on the inwall of described outer semicircular cylinder 21
Being provided with the second chute of the arc being coaxial therewith line, the outer wall of described interior semicircular cylinder 22 is provided with the second slide block, and described second is sliding
Block is contained in described second chute, and can slide wherein, it is achieved described interior semicircular cylinder 22 can the most described outer semicircular cylinder 21
Annular rotation.
In another kind of technical scheme, described electric power detection cross arm shielding cover, described first arc-shaped through-hole 121 and institute
Stating the second arc-shaped through-hole 131 all not contact with described first chute 14, described 3rd arc-shaped through-hole 211 and described 4th arc lead to
Hole 221 does not all contact with described second chute.
In another kind of technical scheme, described electric power detection cross arm shielding cover, described siren is alarm bell.
In another kind of technical scheme, described electric power detection cross arm shielding cover, described the first noumenon 1, described interior partly
The diameter of cylinder 22 and described outer semicircular cylinder 21 is than for 1.2:1.1:1.
The workflow of the present invention: as shown in Figure 1 mask is enclosed within cross-arm to be covered, according to cross-arm to be covered
Length, as the length of cross-arm is not more than the length along its axis direction of the first noumenon 1, outer semicircular cylinder 21 is located close to first
The limit primary importance of body 1 blind end, interior semicircular cylinder 22 is parallel with outer semicircular cylinder 21;If the length of cross-arm is more than the first noumenon 1
The length along its axis direction lower, outer semicircular cylinder 21 is slid into away from the blind end of the first noumenon 1 length of mask
Degree is not less than the position of the length of cross-arm, as shown in Figure 2;
After regulating the length of mask, by wire along open slot 11, it is held on respectively in metallic channel 31, and by striped blocks
32 opening parts sliding into metallic channel 31, form the closing space of multiple receiving wire, it is to avoid detect construction operation mistake at electric power
The slip of wire or come off in journey, turns to extreme position by the interior outer semicircular cylinder of semicircular cylinder 22 21, and interior semicircular cylinder 22 is with outer
Semicircular cylinder 21 connects fixing by Magnet, forms the space accommodating cross-arm with the first noumenon 1, is led to respectively by two fan-shaped plate bodys 41
Cross the first arc-shaped through-hole 121 and the 3rd arc-shaped through-hole 211 to cover with the second arc-shaped through-hole 131 and the entrance of the 4th arc-shaped through-hole 221
Cover is internal, and two fan-shaped plate bodys 41 form centre and stay round-meshed loop configuration, is formed with the first noumenon 1 and the second body 2 and holds
Receive the closing space of described cross-arm, as shown in Figure 3;
The present invention designs detection device, by the current value on electric-field sensor Real-time Collection cross-arm, and is passed by current value
Passing controller, current value is compared by controller with the threshold value being pre-designed, if current value is more than threshold value, then controller opens
Dynamic siren, reminds the current anomaly on staff's cross-arm in time, and the current anomaly on cross-arm is usually by line fault
Cause, so can be prevented effectively from operating personnel and construct in the case of not knowing line fault the casualties caused.
Number of devices described herein and treatment scale are used to the explanation of the simplification present invention.To the application of the present invention,
Modifications and variations will be readily apparent to persons skilled in the art.
Although embodiment of the present invention are disclosed as above, but it is not restricted in description and embodiment listed
Using, it can be applied to various applicable the field of the invention completely, for those skilled in the art, and can be easily
Realizing other amendment, therefore under the general concept limited without departing substantially from claim and equivalency range, the present invention does not limit
In specific details with shown here as the legend with description.
Claims (7)
1. an electric power detection cross arm shielding cover, it is for covering the cross-arm of livewire work, it is characterised in that comprising:
Cross-arm cover body, it includes the first noumenon of hollow cylinder structure of open at one end and is slidably connected with described the first noumenon
And along the second body of described the first noumenon axis direction extension, described second body includes interior the half of the coaxial line be arrangeding in parallel
Cylinder and outer semicircular cylinder, described outer semicircular cylinder is between described interior semicircular cylinder and described the first noumenon, and described outer semicircular cylinder can
Axis direction along described the first noumenon slides, and described interior semicircular cylinder can rotate relative to described outer half cylinder annular, and described interior half
The first side of cylinder and the second side of described outer semicircular cylinder are provided with the Magnet that can attract each other so that described interior semicircular cylinder phase
During to described outer half rotary drum to extreme position, described interior semicircular cylinder becomes to accommodate the described cross-arm of part with described outer semi-cylindrical shaped
The class cylinder of hollow;Described the first noumenon is provided with two that extend and relative open slots, two institutes along its axis direction
State open slot and described the first noumenon is separated into Part I and the Part II of two non-touching half-cylinder structure, described
Multiple the first arc-shaped through-hole with described the first noumenon coaxial line and the is offered respectively on Part I and described Part II
Two arc-shaped through-holes, described first arc-shaped through-hole and described second arc-shaped through-hole are relatively and the plane that formed and described the
The bottom surface of one body is parallel, and described first arc-shaped through-hole and described second arc-shaped through-hole are all along the axis direction of described the first noumenon
Arrangement, described interior semicircular cylinder and described outer semicircular cylinder offers respectively and leads to described first arc-shaped through-hole and described second arc
The 3rd arc-shaped through-hole that hole is corresponding and the 4th arc-shaped through-hole;First it is equipped with successively on the inwall of the bottom surface of described the first noumenon
Layer soft rubber cushion, compression spring and second layer soft rubber cushion, the middle part of described second layer soft rubber cushion is provided with groove;
Wire fixed mechanism, it includes the arc of multiple accommodated wire being arranged on described Part I and described Part II
Shape metallic channel, multiple described metallic channels are positioned at described second body near one end of described the first noumenon blind end and described first
Between the blind end of body, multiple described metallic channels all connect with described open slot and along described the first noumenon axis direction arrange
Cloth, the inwall of described open slot slides and is provided with multiple striped blocks, and a described striped blocks is slidably to a described metallic channel
Overthe openings and formed accommodate wire closing space;The inwall of described metallic channel is provided with arc felt pad, described insulation
Pad includes inner polytetrafluoroethyllayer layer, metal net layer, vacuum bed course and polytetrafluorethylene outer layer from inside to outside;
Insulation barrier, it includes two the fan-shaped plate bodys being generally aligned in the same plane, two sides that two described fan-shaped plate bodys are relative
On be respectively equipped with semicircular indentations, described semicircular indentations inwall is provided with annular sponge body, and two described fan-shaped plate bodys are respectively
It is connected with the first linking arm and second linking arm of pincerlike handle so that the unlatching/merging of described pincerlike handle can drive two
The relative movement of individual described fan-shaped plate body, a described fan-shaped plate body can pass through described first arc-shaped through-hole and described 3rd arc
Through hole enters described the first noumenon and the inside of described second body, and another described fan-shaped plate body can pass through described second arc
Through hole and described 4th arc-shaped through-hole enter described the first noumenon and the inside of described second body, two described fanning strip bodily forms
Stay round-meshed loop configuration in the middle of becoming, form the closing sky accommodating described cross-arm with described the first noumenon and described second body
Between;
Detection device, it include the siren being arranged between described ground floor soft rubber cushion and described spring, be arranged on described recessed
Electric-field sensor within groove and the controller electrically connected with described siren and electric-field sensor;Described controller is set to
Receive field intensity on the described cross-arm of described electric-field sensor detection change and be converted into current digital value, by current digital value with pre-
The threshold value first arranged compares, if this current digital value is more than threshold value, then starts described siren;If being not more than, do not open
Dynamic.
2. electric power detection cross arm shielding cover as claimed in claim 1, it is characterised in that described the first noumenon, described second
Being coated with one layer of abrasion-proof insulating coating on the surface of body and described fan-shaped plate body, described coatings includes following weight portion
The raw material of number: polyvinyl acetate resin 45 parts, silane coupler 0.1 part, Kaolin 9 parts, feldspar in powder 1 part, root of Herba Menthae Haplocalycis powder 0.3
Part, nanometer inorganic filler 15 parts, dimethylbenzene 40 parts, polyolefin-wax 2 parts, pine ester 0.2 part and defoamer 0.2 part;
Wherein, described nanometer is to be the wollastonite in powder of 1:1.2:1.4:1:1.5:1.6, Pulvis Talci, swollen by weight ratio without tassement polaire
The mixture that profit soil, Gypsum Fibrosum powder, attapulgite and aluminium oxide are formed.
3. electric power detection cross arm shielding cover as claimed in claim 2, it is characterised in that edge on the inwall of described the first noumenon
Its axis direction is provided with the first chute, and the outer wall of the blind end of the close described the first noumenon of described outer semicircular cylinder is provided with first
Slide block, described first slider containment is in described first chute and can slide wherein, it is achieved described outer semicircular cylinder can institute relatively
State the first noumenon slip along its axis direction.
4. electric power detection cross arm shielding cover as claimed in claim 3, it is characterised in that set on the inwall of described outer semicircular cylinder
Having the second chute of the arc being coaxial therewith line, the outer wall of described interior semicircular cylinder to be provided with the second slide block, described second slide block holds
It is contained in described second chute, and can slide wherein, it is achieved described interior semicircular cylinder can the annular of the most described outer semicircular cylinder turn
Dynamic.
5. electric power detection cross arm shielding cover as claimed in claim 4, it is characterised in that described first arc-shaped through-hole and described
Second arc-shaped through-hole does not all contact with described first chute, and described 3rd arc-shaped through-hole and described 4th arc-shaped through-hole are all with described
Second chute does not contacts.
6. electric power detection cross arm shielding cover as claimed in claim 5, it is characterised in that described siren is alarm bell.
7. electric power detection cross arm shielding cover as claimed in claim 6, it is characterised in that described the first noumenon, described interior partly
The diameter of cylinder and described outer semicircular cylinder is than for 1.2:1.1:1.
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Effective date of registration: 20191225 Address after: 542899, No. 193-3, Jianshe East Road, the Guangxi Zhuang Autonomous Region, Hezhou Patentee after: HEZHOU POWER SUPPLY BUREAU OF GUANGXI POWER GRID CORPORATION Address before: 530007, the Guangxi Zhuang Autonomous Region, Nanning Science Park Road, No. 49, Jin Yu new town, B building, 3, 11, floor 1102 Patentee before: Nanning Si Fei Electronic Science and Technology Co., Ltd. |