CN206134380U - Plastic insulation and insulator chain - Google Patents

Abstract

The utility model provides a plastic insulation and insulator chain, this plastic insulation includes: plug, plastic casing, plastic casing are provided with the connection screw, and the plug stretches into connects screw and plastic casing threaded connection. The plastic casing is including the integrative full skirt that takes shape, first flange and the relative second flange that sets up with first flange. The full skirt is located with range upon range of mode ring around the plug, first flange and the protruding one end of locating the plastic casing of second flange. The plastic insulation substring is concatenated in proper order by a plurality of plastic insulation and forms. Little, the insulating effect of the sub - texture of this plastic insulation probability light, that take place the flashover, anti thunder strike goodly.

Description

A kind of insulator made from plastic and insulator chain

Technical field

The utility model is related to the subdomains that insulate, in particular to a kind of insulator made from plastic and using the plastic insulation The insulator chain of son.

Background technology

Insulator is a kind of special insulation control, can be played an important role in overhead transmission line.Between in one's early years absolutely Edge is used for electric pole, and the one end for being slowly developed in high type high-tension bus-bar connection tower has hung the insulator of many plate-likes, and it is In order to increase creep age distance, generally it is made up of glass or ceramics.In recent years, China's electric power industry development was rapid, generator Installed capacity increases year by year.Isolator lightning arrester as the indispensable part of power transmission and transforming equipment, with sending out for power industry Exhibition is inseparable.

At present, porcelain insulator is most commonly used insulator used in power system, by quartz, feldspar, clay and oxidation Aluminium roasting is formed.Porcelain is a kind of fragile material, and tensile strength is low, and the shortcoming of porcelain insulator is to concentrate position that electricity often occurs in electric field It is dizzy, radio interference is produced, it is easily caused porcelain body aging.

The environmental stability of glass insulator preferably, is made annealing treatment after melted material at high temperature is molded, But due to due to PROCESS FOR TREATMENT, cause the insulator of glass material when creep age distance is increased using increasing deep rib come reality It is existing, therefore when the serious area of dust pollution is used for, self-cleaning ability is poor, resistance to pollution flashover ability declines.Chance external force is easily rupturable when destroying, Self-destruction rate is higher.

With glass insulator due to due to material, quality is big, and volume is also larger, is not easy to install, changes for porcelain insulator And transport.

Later composite insulator solved the problems, such as quality and transported with changing that composite insulator was typically by high-temperature vulcanized silicon rubber The organic synthesis such as glue, EP rubbers material is constituted, and anode-cathode distance is almost equal inside and outside composite insulator, good antifouling effect.But The bending resistance of composite insulator, the poor performance of torque resistant, when bearing larger transverse pressure, are susceptible to brittle failure, so occurring Colliding and trampling makes easily to produce deformation.

Utility model content

The purpose of this utility model is to provide a kind of insulator made from plastic, and it can mitigate during transport and use Weight, takes up room little, is easily installed, and its material stretching resistance and compressive resistance are strong, due to due to material, its bending resistance, torque resistant Performance boost.Because the design of its contour structures and size makes good insulating effect, anti-lightning is strong.

Another object of the present utility model is to provide a kind of insulator chain using above-mentioned insulator made from plastic, and it can increase Plus the creep age distance of insulator reduces the generation of flashover.

What embodiment of the present utility model was realized in：

A kind of insulator made from plastic, it includes：Plug, plastic casing, plastic casing is provided with connecting screw hole, and plug stretches into company Connect screw to be threadedly coupled with plastic casing, plastic casing include integrally formed full skirt, the first flange and with the second flange, the One flange is oppositely arranged with the second flange, and full skirt is located on around plug, and the first flange and the second flange are convexly equipped in plastic casing One end.

In the utility model preferred embodiment, above-mentioned plastic housing material is high density polyethylene (HDPE).

In the utility model preferred embodiment, above-mentioned connecting screw hole is by the first inwall, the second inwall and the 3rd Wall encloses to set and forms, and the second inwall is located between the first inwall and the 3rd inwall, and the first inwall surrounds truncated cone-shaped through hole, the second inwall Cylindrical hole is surrounded, the 3rd inwall is internal thread hole, and truncated cone-shaped hole, cylindrical hole, internal thread hole are sequentially communicated.

In the utility model preferred embodiment, above-mentioned plug include integrally formed body, thread spindle, thread spindle with Body axis cooperate in same straight line, body with the second inwall, and thread spindle is connected with the 3rd inner thread.

In the utility model preferred embodiment, a length of 44.89～45.89mm of above-mentioned thread spindle, the external diameter of thread spindle For 25.65～26.65mm.

In the utility model preferred embodiment, the gap between above-mentioned thread spindle and screwed hole is 0.1～0.2mm.

In the utility model preferred embodiment, above-mentioned full skirt includes one-level full skirt, two grades of full skirts, three-level full skirts, and Axially spaced-apart along plastic casing is arranged, and three-level full skirt is adjacent to the first flange.

In the utility model preferred embodiment, above-mentioned one-level full skirt is with the plastic casing away from the one of the first flange The end face distance at end is 11～12mm, and one-level full skirt and two grades of full skirt axial distances are 29 ± 0.5mm, two grades of full skirts and described three The axial distance of level full skirt is 28～29mm, and one-level full skirt, three-level full skirt diameter are 144～146mm, and two grades of full skirts are a diameter of 139～141mm, one-level full skirt, two grades of full skirts, three-level full skirt two sides angles are 6 degree～7 degree.

In the utility model preferred embodiment, above-mentioned first flange includes：First convex portion, the second convex portion, first is convex Portion is connected with three-level full skirt by the matrix circular arc revolving body that radius is 19～20mm, and the second convex portion is excessive with the first convex portion circular arc Connection, the first convex portion, the second boss surface are arcwall face, and the radius of arcwall face is 7～8mm, arcwall face length and is 22～23mm, top to the plastic casing of the first convex portion be provided with the distance between end face of connecting screw hole one end for 127～ 132mm；

It is recessed that second flange and the first flange form column type between plug axisymmetrical, the first flange and the second flange The distance between groove, the symmetrical end of the first flange and the second flange are 51～52mm.

A kind of plastic insulation substring, including above-mentioned insulator made from plastic.

The beneficial effect of the utility model embodiment is：Plastic insulation protonatomic mass is little, is easily installed and transports；Its bending resistance, The performance boost of torque resistant, the probability that flashover occurs is little, long service life.Due to insulator made from plastic appearance profile, structure, angle Degree, the design of radian and optimization so that good insulating effect, anti-lightning is strong.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of the utility model embodiment, below will be to use needed for embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the structural representation of the insulator made from plastic that the utility model embodiment one is provided；

Fig. 2 is along the cross section structure diagram of Fig. 1 cutting planes I-I in the utility model embodiment one；

Fig. 3 is the side structure schematic view of the plastic casing in the insulator made from plastic that the utility model embodiment one is provided；

The cross section structure diagram of the plastic casing that Fig. 4 is provided for Fig. 3；

Fig. 5 is the X scanning results of the insulator made from plastic that the utility model embodiment one is provided；

Fig. 6 is the structural representation of the plastic insulation substring that the utility model embodiment two is provided；

Fig. 7 is the first insulator structure schematic diagram that the utility model embodiment two is provided；

Fig. 8 is the structural representation of the plug of the plastic insulation substring that the utility model embodiment two is provided.

In figure：

Insulator made from plastic 100；Plastic insulation substring 200；

Plastic casing 101；Full skirt 110；One-level full skirt 111；Two grades of full skirts 112；Three-level full skirt 113；Revolving body 120；The One flange 130；First convex portion 131；Second convex portion 133；Second flange 140；3rd convex portion 141；4th convex portion 143；Groove 150；Connecting screw hole 160；First inwall 161；Second inwall 162；3rd inwall 163；Plug 170；Body 171；Thread spindle 172。

First insulator 210；First shell 201；First full skirt 230；Plug 270；The first noumenon 271；First thread spindle 272；Second body 273；Second thread spindle 274；Threaded post 275.

Specific embodiment

It is new below in conjunction with this practicality to make purpose, technical scheme and the advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than the embodiment of whole.Generally described in accompanying drawing herein and The component of the utility model embodiment for illustrating can be arranged and designed with a variety of configurations.

Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.

In description of the present utility model, it should be noted that term " on ", D score, " interior ", the orientation of the instruction such as " outward " Or position relationship is that, based on orientation shown in the drawings or position relationship, or the utility model product is usually put when using Orientation or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply the dress of indication Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Restriction.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying phase To importance.

Additionally, term " level ", " vertical ", etc. term be not offered as requiring part abswolute level or pendency, and can be It is slightly tilted.It is not that the expression structure must as " level " only refers to for its direction relative " vertical " more level Fully horizontally, can be to be slightly tilted.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in utility model.

Embodiment one

Fig. 1 is the structural representation of the insulator made from plastic that the utility model embodiment one is provided；Fig. 2 is the utility model reality Apply in example one along the cross section structure diagram of Fig. 1 cutting planes I-I；Fig. 3 is the plastic insulation that the utility model embodiment one is provided The side structure schematic view of the plastic casing in son；Fig. 4 is the section view knot of the plastic casing that the utility model embodiment one is provided Structure schematic diagram.

Please with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the present embodiment provides a kind of insulator made from plastic 100, and it is included outside plastics Shell 101 and plug 170, plastic casing 101 include full skirt 110, revolving body 120, the first flange 130, the second flange 140, first Groove 150 is formed between the flange 140 of flange 130 and second.

In the present embodiment, plug 170 is threadedly coupled with plastic casing 101 by connecting screw hole 160.Full skirt 110 includes one Level full skirt 111, two grades of full skirts 112, three-level full skirts 113,111, two grades of full skirts 112 of one-level full skirt, three-level full skirt 113 are with stacking Mode is located on around plug 170.First flange 130 includes the first convex portion 131, the second convex portion 133；Second flange 140 includes 3rd convex portion 141, the 4th convex portion 143.First flange 130 and the second flange 140 are oppositely arranged on revolving body 120, and first is convex Axis of the edge 130 with the second flange 140 with regard to revolving body 120 is symmetrical set.First convex portion 131 passes through with the second convex portion 133 Arc surface connection, the first convex portion 131 and the plane tangent of revolving body 120.3rd convex portion 141 and the 4th convex portion 143 pass through arc surface Connection, the 3rd convex portion 141 and the plane tangent of revolving body 120.Groove 150 is formed between second convex portion 133, the 4th convex portion 143.Return Turn 120 one end to be connected with the first flange 130, the second flange 140, the other end is connected with three-level full skirt 113.

It can be 7～8mm that first convex portion 131, the surface of the 3rd convex portion 141 are radiuses, and length can be the circle of 22～23mm Arcwall face；Second convex portion 133, the surface of the 4th convex portion 143 are the circular arc that radius is 7～8mm, length is 22～23mm Face, it can be 127～132mm that the second convex portion 133 to plastic casing 101 is provided with the distance of the one end of connecting screw hole 160；4th convex portion It can be 127～132mm that 143 to plastic casing 101 is provided with the distance of the one end of connecting screw hole 160；First convex portion the 131, the 3rd is convex Portion 141 apart from L3 can be 51～52mm.

In the present embodiment, the surface circle of the first convex portion 131, the second convex portion 133, the 3rd convex portion 141, the 4th convex portion 143 Arc radius are 7.5mm, arc-shaped surface length and are 22.3mm；Second convex portion 133 is provided with connecting screw hole to plastic casing 101 The distance of 160 one end is 130mm；First convex portion 131, the 4th convex portion 143 are provided with connecting screw hole 160 1 to plastic casing 101 The distance at end is 130mm.3rd convex portion 141 apart from L3 be 51.2mm.

Connecting screw hole 160 is enclosed to set and is formed by the first inwall 161, the second inwall 162, the 3rd inwall 163；First inwall 161 Surround truncated cone-shaped through hole, the second inwall 162 surrounds cylindrical hole, the 3rd inwall 163 is internal thread hole, truncated cone-shaped through hole, circle The insertion successively of cylindricality through hole, internal thread hole.

The depth of connecting screw hole 160 is 82.09mm, and truncated cone-shaped through hole bottom surface radius of circle is 65mm, top surface garden radius is 41.5mm；Truncated cone-shaped through hole and cylindrical hole total depth L₁For 36.2mm, depth L of internal thread hole₂For 45.89mm.Plug Gap between 170 and connecting screw hole 160 is 0.15mm.

Plug 170 includes body 171, thread spindle 172；Body 171, thread spindle 172 are integrally formed, and body 171 is cylinder Shape, body 171 cooperates with the second inwall 162, and thread spindle 172 is threadedly coupled with the 3rd inwall 163.Body 171 can be with It is axially disposed as needed to have screwed hole, to be connected with other devices such as insulator.

In the present embodiment, the material of the plastic casing 101 of insulator made from plastic 100 is high density polyethylene (HDPE).

In the present embodiment, the end face of one-level full skirt 111 and the plastic casing 101 away from one end of the first flange 130 Distance can be 11～12mm, be 11.5mm in the present embodiment, one-level full skirt 11 and two grades of full skirts 112 along plug 170 it is axial away from It is in the present embodiment 29mm from being 29～30mm, the axial distance of two grades of full skirts 112 and three-level full skirt 113 along plug 170 Can be 28～29mm, be in the present embodiment 28.9mm, one-level full skirt 111, three-level full skirt 113 diameter can for 144～ 146mm, is in the present embodiment 145mm, and two grades of diameters of full skirt 112 can be 139～141mm, be in the present embodiment 140mm. Herein it should be noted that 111, two grades of full skirts 112 of one-level full skirt, the diameter of three-level full skirt 113 are each meant along plug 170 radially The ultimate range in direction.

111, two grades of full skirts 112 of one-level full skirt, up and down between two surfaces by circular arc song of three-level full skirt 113 Face connects, and 111, two grades of full skirts 112 of one-level full skirt, the angle β on two surfaces up and down of three-level full skirt 113 can be 6 degree～7 Degree, in the present embodiment β be 7 degree 4 points 24 seconds.

It can be the arc cam of 19～20mm that revolving body 120 is for radius, and arc radius are 19.1mm in the present embodiment.

In sum, the outer surface of the plastic casing 101 of insulator made from plastic 100 is curved surface, and anti-lightning effect is good, insulation Effect is good, and because material is high density polyethylene (HDPE), quality is light, is easily installed and transports, and its material stretching resistance and compressive resistance are strong, Its bending resistance, the performance boost of torque resistant, and the insulator made from plastic of the material manufacture of high density polyethylene (HDPE) are relative to traditional glass Insulator, ceramic insulator cost are reduced, production technology is also brief.

Fig. 5 is the X scanning results of the insulator made from plastic that the utility model embodiment one is provided；Fig. 5 is referred to, plastics in figure The X scanning results of insulator 100 show that plastic casing 101 does not have bubble when into mould in insulator made from plastic, do not have gap and split Seam.Illustrate that the probability that the insulator made from plastic occurs flashover is reduced, in other words, the high life of the insulator made from plastic, safety Property it is high.

Embodiment two

Fig. 7 is the first insulator structure schematic diagram that the utility model embodiment two is provided, and Fig. 8 is the utility model enforcement The structural representation of the plug of the plastic insulation substring that example two is provided.See also Fig. 6, Fig. 7, Fig. 8.

Plastic insulation substring 200 includes the insulator made from plastic that the first insulator 210 and the utility model embodiment one are provided 100。

First insulator 210 includes the first plastic casing 201, the first plug.First plastic casing 201 includes the first full skirt 230, and the connecting hole for running through is opened up vertically.First plug is connected through connecting hole with the first plastic casing.In the present embodiment, First plug and the first plastic casing are threaded connection.

Specifically, the first plug includes the thread spindle 272, threaded post of the first noumenon 271 and first being coaxially sequentially connected 275.The first noumenon 271, the first thread spindle 272 are respectively positioned in connecting hole, and threaded post 275 stretches out connecting hole and insulator made from plastic Plug 170 is threadedly coupled in 100.In the present embodiment, threaded post 275 is adopted with plug 170 and is threadedly coupled, but not limited to this, In other embodiment of the present utility model, threaded post 275 can also take other connected modes with plug 170.

Correspondingly, the first insulator 210 and the joint of insulator made from plastic 100, can connect in the following way：First plastics Shell 201 passes through insulating cement adhesion with the plastic casing 101 in insulator made from plastic 100.To simplify description, insulator made from plastic 100 The NM part of concrete structure, embodiment one please be see.

In the present embodiment, plastic insulation substring 200 is connected into by the insulator 210 of insulator made from plastic 100 and first.Modeling Material insulator chain 200 increased creep age distance, can be used to pollute the larger place of environment.

The utility model makes the plastic casing of insulator made from plastic using the material of high density polyethylene (HDPE), reduces plastic insulation The quality of son, while also allowing for installing and transporting.It is its bending resistance, anti-furthermore the stretching resistance and compressive resistance of plastic insulation subshell are strong The performance boost of moment of torsion, service life increases, outside the plastics of the material that high density polyethylene (HDPE) is can be seen that by X scanning results Shell inside, so the probability that its insulation effect more preferably, occurs flashover is reduced, increases service life without bubble, gap.

The size of the utility model insulator made from plastic outer surface, radian, the design of angle and optimization so that insulator it is exhausted Edge effect, anti-thunder impact more preferably.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of insulator made from plastic, it is characterised in that the insulator made from plastic includes：Plug, plastic casing, the plastic casing Connecting screw hole is provided with, the plug stretches into the connecting screw hole and is threadedly coupled with the plastic casing, the plastic casing bag Include integrally formed full skirt, the first flange and with the second flange, first flange is oppositely arranged with second flange, institute State full skirt to be located on around the plug, first flange is convexly equipped in one end of plastic casing with second flange.

2. insulator made from plastic according to claim 1, it is characterised in that the plastic housing material is high-density polyethylene Alkene.

3. insulator made from plastic according to claim 1, it is characterised in that the connecting screw hole is by the first inwall, second Wall and the 3rd inwall enclose to set and form, and second inwall is located between first inwall and the 3rd inwall, and described the One inwall surrounds truncated cone-shaped through hole, and second inwall surrounds cylindrical hole, and the 3rd inwall is internal thread hole, the round platform Shape hole, the cylindrical hole, the internal thread hole are sequentially communicated.

4. insulator made from plastic according to claim 3, it is characterised in that the plug includes integrally formed body, spiral shell Line axle, the axis collinear of the axis of the thread spindle and the body, the body cooperates with second inwall, described Thread spindle is connected with the 3rd inner thread.

5. insulator made from plastic according to claim 4, it is characterised in that a length of 44.89～45.89mm of the thread spindle, The external diameter of the thread spindle is 25.65～26.65mm.

6. the insulator made from plastic according to claim 4 or 5, it is characterised in that between the thread spindle and the screwed hole Gap be 0.1～0.2mm.

7. insulator made from plastic according to claim 1, it is characterised in that the full skirt includes the axle along the plastic casing To spaced one-level full skirt, two grades of full skirts, three-level full skirts, and the three-level full skirt is adjacent to first flange.

8. insulator made from plastic according to claim 7, it is characterised in that the one-level full skirt and the plastic casing away from The end face distance of one end of first flange is 11～12mm, and the one-level full skirt is 29 with two grades of full skirt axial distances ～30mm, the axial distance of two grades of full skirts and the three-level full skirt is 28～29mm, the one-level full skirt, the three-level umbrella Skirt diameter is 144～146mm, a diameter of 139～141mm of two grades of full skirts, the one-level full skirt, two grades of full skirts, The three-level full skirt two sides angle is 6 degree～7 degree.

9. insulator made from plastic according to claim 7, it is characterised in that first flange includes：First convex portion, second Convex portion, first convex portion is connected with the three-level full skirt by the matrix circular arc revolving body that radius is 19～20mm, and described Two convex portions are excessively connected with first convex portion circular arc, and the surface of first convex portion, the surface of second convex portion are arc Shape face, and the radius of the arcwall face is 7～8mm, the arcwall face length and is 22～23mm, the top of first convex portion Portion to the plastic casing is provided with the distance between end face of described connecting screw hole one end for 127～132mm；

Second flange and first flange along the plug axisymmetrical, first flange and second flange it Between form the distance between groove, first flange end symmetrical with second flange for 51～52mm.

10. a kind of plastic insulation substring, it is characterised in that include the plastic insulation as described in claim 1 to 9 any one Son.