CN103383884A - Electrical insulator - Google Patents
Electrical insulator Download PDFInfo
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- CN103383884A CN103383884A CN2012101349006A CN201210134900A CN103383884A CN 103383884 A CN103383884 A CN 103383884A CN 2012101349006 A CN2012101349006 A CN 2012101349006A CN 201210134900 A CN201210134900 A CN 201210134900A CN 103383884 A CN103383884 A CN 103383884A
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Abstract
The invention discloses an electrical insulator. The electrical insulator comprises a silicone rubber umbrella cluster, a hardware fitting, an epoxy glass fiber rod, a spring and a compressor, wherein the silicone rubber umbrella cluster is provided with a tubular body, an inner cavity extending in the axial direction of the tubular body is formed inside the tubular body, the hardware fitting and the epoxy glass fiber rod are located in the inner cavity of the silicone rubber umbrella cluster and mutually assembled together, a first accommodating hole which extends in the axial direction is formed in the hardware fitting, the spring is accommodated in the first accommodating hole of the hardware fitting, and the compressor compresses the spring in the axial direction. Compared with the prior art, the electrical insulator adopts a spring mechanism which can be compressed axially for achieving the function of high axial elasticity of the electrical insulator; meanwhile, the hardware fitting and the high-strength epoxy glass fiber rod are embedded in the body of the silicone rubber umbrella cluster, so that the radial stiffness of the electrical insulator is improved.
Description
Technical field
The present invention relates to a kind of insulator, relate in particular to a kind of insulator for supporting hangingly the transmission lines such as subway or high ferro.
Background technology
Existing insulator is divided into porcelain insulator and silicon rubber elastic insulator.Porcelain insulator is traditional handicraft, and cement waters the dress gold utensil.This porcelain insulator has enough hot strengths and radial rigidity, but can't bear the environment for use of long-term vibration.The silicon rubber elastic insulator is with high-intensity glass-epoxy material, for example, stick on stainless steel bar with high strength epoxy resin, be matched with between surface of insulating layer and transmission line clamp with natural rubber and nano imvite and the adhesion promoter of being correlated with and make the sulfuration elastic layer.The elasticity of this silicon rubber elastic insulator is better, but only adopts rubber as bearing the connector of long-term vibration and mechanism, and its long-term reliability is poor.
The porcelain insulator that these are traditional and silicon rubber elastic insulator all are not suitable for the environments for use such as subway or high ferro, because there are violent and long-term vibrations in subway and high ferro.
In subway or high ferro application, transmission line is supported on tunnel body of wall or support bar hangingly by insulator, and the locomotive of subway or high ferro electrically contacts slidably by pantograph and transmission line, in order to power to the electric locomotive of subway or high ferro.But, reason due to the track of subway or high ferro, for example track seam or track are unequal, can cause electric locomotive to have strong vertical tremor in the process of running at high speed, this just requires insulator automatically to adapt to the vertical tremor of electric locomotive on above-below direction (axial direction of insulator), transmission line is remained with pantograph electrically contact.In addition, also there is double swerve frequently in electric locomotive in the process of running at high speed, and this just requires insulator to have enough mechanical strengths on left and right directions (radial direction of insulator), in order to can not deform and damage.
Therefore, the insulator that subway or high ferro are used must have enough axial elasticities, must have enough radial rigidities again simultaneously, and existing porcelain insulator and silicon rubber elastic insulator all can't be realized this function.
Summary of the invention
For the aforementioned technical problem that exists in prior art, the present invention is intended to provide a kind of insulator, and it not only has enough axial elasticities and has again enough radial rigidities simultaneously.
According to an aspect of the present invention, provide a kind of insulator, comprising: the silicon rubber cluster parachute, described silicon rubber cluster parachute has cylindrical body, is formed with in described cylindrical body along its axially extended inner chamber; Be arranged in gold utensil and the epoxy fibreglass rod of the inner chamber of described silicon rubber cluster parachute, described gold utensil and epoxy fibreglass rod fit together mutually, and are formed with in described gold utensil along described axially extended the first accepting hole; Be contained in the spring in the first accepting hole of described gold utensil; With the compression set along the described spring of described axial compression.
According to a preferred embodiment of the present invention, be formed with on described gold utensil along described axially extended the first threaded mounting hole, and be formed with on described epoxy fibreglass rod along described axially extended the second threaded mounting hole, described the first threaded mounting hole on this second threaded mounting hole and described gold utensil is at described relative and complete threaded mounting hole of formation during in installment state on axially; Described gold utensil and described epoxy fibreglass rod fit together mutually by the screw rod that is screwed into described threaded mounting hole.
According to a further advantageous embodiment of the invention, described screw rod extends axially along described, one end of described screw rod passes described gold utensil via described the first threaded mounting hole and is threaded with the second threaded mounting hole of described epoxy fibreglass rod, and the other end passes described compression set and is threaded with at least two adjusting nuts.
According to a further advantageous embodiment of the invention, described compression set comprises the first pressing plate that directly is pressed against on described spring.
According to a further advantageous embodiment of the invention, described compression set comprise the first pressing plate and with described the first rigidly connected rigidity briquetting of pressing plate, described rigidity briquetting is assemblied in the first accepting hole of described gold utensil and is pressed against on described spring.
According to a further advantageous embodiment of the invention, also be formed with on described gold utensil along described axially extended, with separated the second accepting hole of described the first accepting hole; Described insulator also comprises and described the first rigidly connected rigidity briquetting of pressing plate, and described rigidity briquetting is assemblied in the second accepting hole of described gold utensil; And described the first pressing plate directly is pressed against on described spring.
According to a further advantageous embodiment of the invention, during installation, described insulator is fixed on fixed head on mounting bracket hangingly, and described fixed head is pressed against on described the first pressing plate, and the other end of described screw rod passes described fixed head.
According to a further advantageous embodiment of the invention, described insulator also comprises: resilient rubbber cushion, described resilient rubbber cushion are pressed against on described fixed head; With the second pressing plate, described the second pressing plate is pressed against on described resilient rubbber cushion, and the other end of described screw rod passes described resilient rubbber cushion and described the second pressing plate.
According to a further advantageous embodiment of the invention, described the first accepting hole in described gold utensil is the looping pit towards outward opening.
According to a further advantageous embodiment of the invention, the described threaded mounting hole screwed hole of centre for keeping apart with described the first accepting hole.
According to a further advantageous embodiment of the invention, described the first accepting hole in described gold utensil is the central cylindrical hole towards outward opening that is communicated with described threaded mounting hole.
According to a further advantageous embodiment of the invention, described screw rod passes the first accepting hole of the central cylindrical of described gold utensil, and is slidably matched with the rigidity briquetting and the spring that are contained in the first accepting hole.
According to a further advantageous embodiment of the invention, described insulator also comprises: bottom one end of the insulator relative with described insulator top the first pressing plate that flange, described flange are connected to described silicon rubber cluster parachute, described flange is suitable for use in the suspension transmission line.
According to a further advantageous embodiment of the invention, described transmission line is the transmission line of subway or high ferro, but forms being electrically connected to of relative sliding between the pantograph of described transmission line and subway or high ferro locomotive.
According to a further advantageous embodiment of the invention, described screw rod is threaded with described the first pressing plate and fixed head.
According to a further advantageous embodiment of the invention, described screw rod is threaded with described the first pressing plate, fixed head and the second pressing plate.
According to a further advantageous embodiment of the invention, described spring is helical spring or butterfly spring.
According to a further advantageous embodiment of the invention, described the second accepting hole is the looping pit towards outward opening.
According to a further advantageous embodiment of the invention, described compression set comprises: the first pressing plate; The the first rigidity briquetting that is connected with described the first pressing plate, described the first rigidity briquetting is assemblied in the first accepting hole of described gold utensil slidably; Be contained in described the first accepting hole in and the second rigidity briquetting relative with described the first rigidity briquetting, described spring is compressed between described the first and second rigidity briquettings.
According to a further advantageous embodiment of the invention, be formed with on described gold utensil along described axially extended the first threaded mounting hole, and be formed with on described epoxy fibreglass rod along described axially extended the second threaded mounting hole, described the first threaded mounting hole on this second threaded mounting hole and described gold utensil is at described relative and complete threaded mounting hole of formation during in installment state on axially; Described gold utensil and described epoxy fibreglass rod fit together mutually by the first screw rod that is screwed into described threaded mounting hole.
According to a further advantageous embodiment of the invention, be formed with the axial hole that coordinates with the second rigidity briquetting in described the first rigidity briquetting, described the second rigidity briquetting is slidably received in the axial hole of described the first rigidity briquetting.
According to a further advantageous embodiment of the invention, described the first screw rod is formed on the bottom of described the second rigidity briquetting.
According to a further advantageous embodiment of the invention, the upper end of described epoxy fibreglass rod is formed with the assembling recess that coordinates with described gold utensil, and described gold utensil is inlaid in the assembling recess of described epoxy fibreglass rod.
According to a further advantageous embodiment of the invention, described insulator also comprises at least two radially pins, described radially pin along the radially extension of described silicon rubber cluster parachute and be fixed on described gold utensil and described epoxy fibreglass rod on.
According to a further advantageous embodiment of the invention, the upper end of described epoxy fibreglass rod roughly evenly coordinates with the lower end of described gold utensil.
According to a further advantageous embodiment of the invention, described insulator also comprises at least two radially pins, and described radially pin is along the radially extension of described silicon rubber cluster parachute and be fixed on described gold utensil.
According to a further advantageous embodiment of the invention, be formed with radial hole in described the first rigidity briquetting, the inner of described radially pin extends in the radial hole of described the first rigidity briquetting, and the diameter of the radial hole of described the first rigidity briquetting is greater than described radially pin, make described the first rigidity briquetting axially to move in preset distance along described with respect to described radially pin, thereby the decrement of described spring is limited in preset distance.
According to a further advantageous embodiment of the invention, the upper end of described the first rigidity briquetting is formed with the second screw rod, and described the first rigidity briquetting is threaded with described the first pressing plate by described the second screw rod.
According to a further advantageous embodiment of the invention, during installation, described insulator is fixed on fixed head on mounting bracket hangingly, and described fixed head is pressed against on described the first pressing plate, and the other end of described the second screw rod passes described fixed head and is threaded with at least two adjusting nuts.
According to a further advantageous embodiment of the invention, described insulator also comprises: resilient rubbber cushion, described resilient rubbber cushion are pressed against on described fixed head; With the second pressing plate, described the second pressing plate is pressed against on described resilient rubbber cushion, and described the second screw rod passes described resilient rubbber cushion and described the second pressing plate.
According to a further advantageous embodiment of the invention, described insulator also comprises: bottom one end of the insulator relative with described insulator top the first pressing plate that flange, described flange are connected to described silicon rubber cluster parachute, described flange is suitable for use in the suspension transmission line.
According to a further advantageous embodiment of the invention, described transmission line is the transmission line of subway or high ferro, but forms being electrically connected to of relative sliding between the pantograph of described transmission line and subway or high ferro locomotive.
According to a further advantageous embodiment of the invention, described spring is helical spring or butterfly spring.
Compared with prior art, in each embodiment of the present invention, but the spring mechanism that adopts axial compression is realized the axially large spring function of insulator, simultaneously gold utensil and high-strength epoxy glass fiber rod is inlaid in the main body of silicon rubber cluster parachute, thereby has improved the radial rigidity of insulator.In addition, in the present invention, also be equipped with in the hole of gold utensil for location or the rigidity briquetting of Compress Spring and pin radially, thereby can further improve the radial rigidity of insulator.
Description of drawings
Fig. 1 shows the cutaway view according to the insulator of the first embodiment of the present invention;
Fig. 2 shows the cutaway view of insulator according to a second embodiment of the present invention;
Fig. 3 shows the cutaway view of the insulator of a third embodiment in accordance with the invention;
Fig. 4 shows the cutaway view of the insulator of a fourth embodiment in accordance with the invention;
Fig. 5 shows the cutaway view of insulator according to a fifth embodiment of the invention;
Fig. 6 shows the cutaway view of insulator according to a sixth embodiment of the invention;
Fig. 7 shows the cutaway view of insulator according to a seventh embodiment of the invention;
Fig. 8 shows the cutaway view according to the insulator of the eighth embodiment of the present invention; With
Fig. 9 shows the cutaway view according to the insulator of the ninth embodiment of the present invention.
Embodiment
The below describes the embodiment of exemplary of the present invention in detail, and the example of embodiment is shown in the drawings, and wherein same or analogous label represents same or analogous element.The embodiment that describes below with reference to accompanying drawing is exemplary, is intended to explain the present invention, and can not be interpreted as limitation of the present invention.
[the first embodiment]
Fig. 1 shows the cutaway view according to the insulator 100 of the first embodiment of the present invention.
In a preferred embodiment of the invention, insulator 100 supports the insulator of the transmission line of subway or high ferro hangingly for being used for.In this applicable cases, transmission line is electrically connected to slidably with the pantograph of subway or high ferro locomotive.As saying in background technology, the insulator that this subway or high ferro are used must have enough axial elasticities, must have enough radial rigidities again simultaneously.But, note that insulator of the present invention is not limited to this, it can be the insulator of any transmission line.
As shown in Figure 1, insulator 100 mainly comprises silicon rubber cluster parachute 109, gold utensil 107, epoxy fibreglass rod 110, spring 106, rigidity briquetting 105, the first pressing plate 104 and screw rod 101.
In the embodiment shown in fig. 1, silicon rubber cluster parachute 109 has cylindrical body, is formed with the inner chamber that extends along its axial (axis) X in this cylindrical body.
Please continue referring to Fig. 1, gold utensil 107 is arranged in the inner chamber of silicon rubber cluster parachute 109, and is positioned at the roughly first half of inner chamber.The roughly first half of silicon rubber cluster parachute 109 is embossed on gold utensil 107.The upper surface of gold utensil 107 is roughly concordant with the upper opening end face of the inner chamber of silicon rubber cluster parachute 109.
As shown in Figure 1, epoxy fibreglass rod 110 is arranged in the inner chamber of silicon rubber cluster parachute 109, and is positioned at the roughly Lower Half of inner chamber.The upper surface of epoxy fibreglass rod 110 is concordant with the lower surface of gold utensil 107 and be in contact with one another, and the lower openings end face of the lower surface of epoxy fibreglass rod 110 and the inner chamber of silicon rubber cluster parachute 109 is roughly concordant or protrude a little.The side face close contact of the inner chamber of the outer peripheral face of epoxy fibreglass rod 110 and silicon rubber cluster parachute 109.In one embodiment of the invention, silicon rubber cluster parachute 109 can be embossed on epoxy fibreglass rod 110.
In the embodiment shown in fig. 1, insulator 100 also comprises the flange 111 that is positioned at its lower end, this flange 111 is threaded with the lower end of epoxy fibreglass rod 110, the lower mould of silicon rubber cluster parachute 109 is pressed on flange 111, and the lower surface of epoxy fibreglass rod 110 is resisted against on the end face of flange 111, thereby epoxy fibreglass rod 110 is fixed in the inner chamber of cylindrical body of silicon rubber cluster parachute 109.
Although not shown, flange 111 is used for fixing and keeps transmission line, thereby transmission line is supported on insulator 100 hangingly.
Please continue referring to Fig. 1, be formed with annular the first accepting hole 108 that extends along aforementioned axial X on gold utensil 107.Preferably, as shown in Figure 1, annular the first accepting hole 108 does not penetrate gold utensil 107, and its underpart has diapire.But the present invention is not limited to this, and annular the first accepting hole 108 also can penetrate gold utensil 107.
As shown in Figure 1, helical spring 106 is heavy to be located in annular first accepting hole 108 of gold utensil 107, and the lower end abutment of helical spring 106 is on the diapire of annular the first accepting hole 108.
In the embodiment shown in fig. 1, rigidity briquetting 105 and the first pressing plate 104 are rigidly connected, and rigidity briquetting 105 and annular the first accepting hole 108 couplings, be assemblied in annular first accepting hole 108 of gold utensil 107, and the lower end of rigidity briquetting 105 is pressed on helical spring 106, down (towards epoxy fibreglass rod 110) extrusion spiral spring 106.In the present invention, rigidity briquetting 105 not only can play the effect of location and extrusion spiral spring 106, but also can improve the radial rigidity of silicon rubber cluster parachute 109.
As shown in Figure 1, the first pressing plate 104 is squeezed on rigidity briquetting 105, is used for the location and maintains rigidity briquetting 105.
It is (not shown that insulator 100 can be fixed on a supporter, for example high-voltage wire pole or subway tunnel wall) fixed head 103 on, thereby can be suspended on this supporter, in the embodiment shown in fig. 1, fixed head 103 is pressed against on the first pressing plate 104.
As shown in Figure 1, also be formed with threaded mounting hole 112a that X vertically extends and that keep apart with the first accepting hole 108 on gold utensil 107.Be formed with the threaded mounting hole 112b that X vertically extends on epoxy fibreglass rod 110, the threaded mounting hole 112a on this threaded mounting hole 112b and gold utensil 107 is relative and complete threaded mounting hole 112 of formation during in installment state on axial X.
As shown in Figure 1, screw rod 101 extends along aforementioned axial X, one end of screw rod 101 passes gold utensil 107 via the threaded mounting hole 112a on gold utensil 107 and is threaded with threaded mounting hole 112b on epoxy fibreglass rod 110, and the other end passes the first pressing plate 104 and fixed head 103 and is threaded with at least two adjusting nuts 102.In illustrated embodiment, can come the decrement of adjustable screw spring 106 by rotation adjusting nut 102, thereby the elasticity of adjustable screw spring 106 so that can be according to practical situations, be adjusted to most suitable degree with the axial elasticity of insulator 100.
In the embodiment shown in fig. 1, also be formed with the center tapped through hole of isolating with annular the first accepting hole 108 in gold utensil 107, screw rod 101 passes the center tapped through hole of gold utensil 107 and is threaded with the center tapped through hole of gold utensil 107.In illustrated embodiment, screw rod 101 is full flight screw, and it also is threaded with the first pressing plate 104 and fixed head 103.
In the embodiment shown in fig. 1, but realize the axially large elasticity requirement of insulator 100 by the helical spring 106 of axial compression, simultaneously, in the inner chamber of the cylindrical body by gold utensil 107, epoxy fibreglass rod 110 and gold utensil 107 being inlaid in silicon rubber cluster parachute 109, thereby can improve the main body rigidity of silicon rubber cluster parachute 109, thereby realize the requirement of the radially large rigidity of insulator 100.
[the second embodiment]
Fig. 2 shows the cutaway view of insulator 200 according to a second embodiment of the present invention.
As shown in Figure 2, insulator 200 mainly comprises silicon rubber cluster parachute 209, gold utensil 207, epoxy fibreglass rod 210, spring 206, rigidity briquetting 205, the first pressing plate 204 and screw rod 201.
In the embodiment shown in Figure 2, silicon rubber cluster parachute 209 has cylindrical body, is formed with the inner chamber that extends along its axial (axis) X in this cylindrical body.
Please continue referring to Fig. 2, gold utensil 207 is arranged in the inner chamber of silicon rubber cluster parachute 209, and is positioned at the roughly first half of inner chamber.The roughly first half of silicon rubber cluster parachute 209 is embossed on gold utensil 207.The upper surface of gold utensil 207 is roughly concordant with the upper opening end face of the inner chamber of silicon rubber cluster parachute 209.
As shown in Figure 2, epoxy fibreglass rod 210 is arranged in the inner chamber of silicon rubber cluster parachute 209, and is positioned at the roughly Lower Half of inner chamber.The upper surface of epoxy fibreglass rod 210 is concordant with the lower surface of gold utensil 207 and be in contact with one another, and the lower openings end face of the lower surface of epoxy fibreglass rod 210 and the inner chamber of silicon rubber cluster parachute 209 is roughly concordant or protrude a little.The side face close contact of the inner chamber of the outer peripheral face of epoxy fibreglass rod 210 and silicon rubber cluster parachute 209.
In the embodiment shown in Figure 2, insulator 200 also comprises the flange 211 that is positioned at its lower end, this flange 211 is threaded with the lower end of epoxy fibreglass rod 210, the lower mould of silicon rubber cluster parachute 209 is pressed on flange 211, and the lower surface of epoxy fibreglass rod 210 is resisted against on the end face of flange 211, thereby epoxy fibreglass rod 210 is fixed in the inner chamber of cylindrical body of silicon rubber cluster parachute 209.
Although not shown, flange 211 is used for fixing and keeps transmission line, thereby transmission line is supported on insulator 200 hangingly.
Please continue referring to Fig. 2, be formed with central cylindrical the first accepting hole 208 that extends along aforementioned axial X on gold utensil 207.Preferably, as shown in Figure 2, the bottom of central cylindrical the first accepting hole 208 has the part diapire.
As shown in Figure 2, helical spring 206 is heavy to be located in central cylindrical first accepting hole 208 of gold utensil 207, and the lower end abutment of helical spring 206 is on the diapire of central cylindrical the first accepting hole 208.
In the embodiment shown in Figure 2, rigidity briquetting 205 and the first pressing plate 204 are rigidly connected, and rigidity briquetting 205 and central cylindrical the first accepting hole 208 couplings, be assemblied in central cylindrical first accepting hole 208 of gold utensil 207, and the lower end of rigidity briquetting 205 is pressed on helical spring 206, down (towards epoxy fibreglass rod 210) extrusion spiral spring 206.In the present invention, rigidity briquetting 205 not only can play the effect of location and extrusion spiral spring 206, but also can improve the radial rigidity of silicon rubber cluster parachute 209.
As shown in Figure 2, the first pressing plate 204 is squeezed on rigidity briquetting 205, is used for the location and maintains rigidity briquetting 205.
It is (not shown that insulator 200 can be fixed on a supporter, for example high-voltage wire pole or subway tunnel wall) fixed head 203 on, thereby can be suspended on this supporter, in the embodiment shown in Figure 2, fixed head 203 is pressed against on the first pressing plate 204.
As shown in Figure 2, also be formed with that extend and the threaded mounting hole 212a that be communicated with the first accepting hole 208 of X vertically on gold utensil 207.Be formed with the threaded mounting hole 212b that X vertically extends on epoxy fibreglass rod 210, the threaded mounting hole 212a on this threaded mounting hole 212b and gold utensil 207 is relative and complete threaded mounting hole 212 of formation during in installment state on axial X.
As shown in Figure 2, screw rod 201 extends along aforementioned axial X, one end of screw rod 201 passes gold utensil 207 via the threaded mounting hole 212a on gold utensil 207 and is threaded with threaded mounting hole 212b on epoxy fibreglass rod 210, and the other end passes the first pressing plate 204 and fixed head 203 and is threaded with at least two adjusting nuts 202.In illustrated embodiment, can come the decrement of adjustable screw spring 206 by rotation adjusting nut 202, thereby the elasticity of adjustable screw spring 206 so that can be according to practical situations, be adjusted to most suitable degree with the axial elasticity of insulator 200.
In the embodiment shown in Figure 2, screw rod 201 passes central cylindrical first accepting hole 208 of gold utensil 207, and is slidably matched with the rigidity briquetting 205 and the helical spring 206 that are contained in central cylindrical the first accepting hole 208.In illustrated embodiment, screw rod 201 also is threaded with the first pressing plate 204 and fixed head 203.
In the embodiment shown in Figure 2, but realize the axially large elasticity requirement of insulator 200 by the helical spring 206 of axial compression, simultaneously, in the inner chamber of the cylindrical body by gold utensil 207, epoxy fibreglass rod 210 and gold utensil 207 being inlaid in silicon rubber cluster parachute 209, thereby can improve the main body rigidity of silicon rubber cluster parachute 209, thereby realize the requirement of the radially large rigidity of insulator 200.
[the 3rd embodiment]
Fig. 3 shows the cutaway view of the insulator 300 of a third embodiment in accordance with the invention.
The insulator 300 of the 3rd embodiment shown in Figure 3 only is with the difference of the insulator 100 of the first embodiment shown in Figure 1: the 3rd embodiment shown in Figure 3 has replaced the helical spring 106 of the first embodiment shown in Figure 1 with butterfly spring 306.In addition, the insulator 300 of the 3rd embodiment shown in Figure 3 is identical with the insulator 100 of the first embodiment shown in Figure 1, for the sake of brevity, repeats no more here.
[the 4th embodiment]
Fig. 4 shows the cutaway view of the insulator 400 of a fourth embodiment in accordance with the invention.
The insulator 400 of the 4th embodiment shown in Figure 4 only is with the difference of the insulator 200 of the second embodiment shown in Figure 2: the 4th embodiment shown in Figure 4 has replaced the helical spring 206 of the second embodiment shown in Figure 2 with butterfly spring 406.In addition, the insulator 400 of the 4th embodiment shown in Figure 4 is substantially identical with the insulator 200 of the second embodiment shown in Figure 2, and same or analogous parts adopt same or analogous Reference numeral to represent, for the sake of brevity, repeat no more here.
[the 5th embodiment]
Fig. 5 shows the cutaway view of insulator 500 according to a fifth embodiment of the invention.
The insulator 500 of the 5th embodiment shown in Figure 5 only is with the difference of the insulator 100 of the first embodiment shown in Figure 1: the insulator 500 of the 5th embodiment shown in Figure 5 also comprises resilient rubbber cushion 512 and the second pressing plate 513.
In the 5th embodiment shown in Figure 5, resilient rubbber cushion 512 is pressed against on fixed head 503, and the second pressing plate 513 is pressed against on resilient rubbber cushion 512, simultaneously, the other end of screw rod 501 passes resilient rubbber cushion 512 and the second pressing plate 513, and is threaded with resilient rubbber cushion 512 and the second pressing plate 513.
In addition, the insulator 500 of the 5th embodiment shown in Figure 5 is substantially identical with the insulator 100 of the first embodiment shown in Figure 1, and same or analogous parts adopt same or analogous Reference numeral to represent, for the sake of brevity, repeat no more here.
In the insulator 500 of the 5th embodiment shown in Figure 5, by the resilient rubbber cushion 512 of setting up in addition, can further improve insulator 500 axial elasticities, thereby realize the axial large flexible requirement of insulator 500.
[the 6th embodiment]
Fig. 6 shows the cutaway view of insulator 600 according to a sixth embodiment of the invention.
As shown in Figure 6, insulator 600 mainly comprises silicon rubber cluster parachute 609, gold utensil 607, epoxy fibreglass rod 610, spring 606, rigidity briquetting 605, the first pressing plate 604 and screw rod 601.
In the embodiment shown in fig. 6, silicon rubber cluster parachute 609 has cylindrical body, is formed with the inner chamber that extends along its axial (axis) X in this cylindrical body.
Please continue referring to Fig. 6, gold utensil 607 is arranged in the inner chamber of silicon rubber cluster parachute 609, and is positioned at the roughly first half of inner chamber.The roughly first half of silicon rubber cluster parachute 609 is embossed on gold utensil 607.The upper surface of gold utensil 607 is roughly concordant with the upper opening end face of the inner chamber of silicon rubber cluster parachute 609.
As shown in Figure 6, epoxy fibreglass rod 610 is arranged in the inner chamber of silicon rubber cluster parachute 609, and is positioned at the roughly Lower Half of inner chamber.The upper surface of epoxy fibreglass rod 610 is concordant with the lower surface of gold utensil 607 and be in contact with one another, and the lower openings end face of the lower surface of epoxy fibreglass rod 610 and the inner chamber of silicon rubber cluster parachute 609 is roughly concordant or protrude a little.The side face close contact of the inner chamber of the outer peripheral face of epoxy fibreglass rod 610 and silicon rubber cluster parachute 609.
In the embodiment shown in fig. 6, insulator 600 also comprises the flange 611 that is positioned at its lower end, this flange 611 is threaded with the lower end of epoxy fibreglass rod 610, the lower mould of silicon rubber cluster parachute 609 is pressed on flange 611, and the lower surface of epoxy fibreglass rod 610 is resisted against on the end face of flange 611, thereby epoxy fibreglass rod 610 is fixed in the inner chamber of cylindrical body of silicon rubber cluster parachute 609.
Although not shown, flange 611 is used for fixing and keeps transmission line, thereby transmission line is supported on insulator 600 hangingly.
Please continue referring to Fig. 6, be formed with central cylindrical the first accepting hole 608 that extends along aforementioned axial X on gold utensil 607.Preferably, as shown in Figure 6, the bottom of central cylindrical the first accepting hole 608 has the part diapire.
As shown in Figure 6, helical spring 606 is heavy to be located in central cylindrical first accepting hole 608 of gold utensil 607, the lower end abutment of helical spring 606 on the diapire of central cylindrical the first accepting hole 608, the upper end of the first pressing plate 604 direct extrusion spiral springs 606.
In the embodiment shown in fig. 6, also be formed with an annular the second accepting hole 613 on gold utensil 607, this annular second accepting hole 613 is kept apart with central cylindrical the first accepting hole 608.Annular rigidity briquetting 605 and annular the second accepting hole 613 couplings, and be assemblied in annular second accepting hole 613 of gold utensil 607.In the present invention, rigidity briquetting 605 and the first pressing plate 604 are rigidly connected and the guiding by annular the second accepting hole 613, not only can play the effect of location the first pressing plate 604 and helical spring 606, but also can improve the radial rigidity of silicon rubber cluster parachute 609.
It is (not shown that insulator 600 can be fixed on a supporter, for example high-voltage wire pole or subway tunnel wall) fixed head 603 on, thereby can be suspended on this supporter, in the embodiment shown in fig. 6, fixed head 603 is pressed against on the first pressing plate 604.
As shown in Figure 6, also be formed with that extend and the threaded mounting hole (not shown, as to see also Fig. 2) that be communicated with the first accepting hole 608 of X vertically on gold utensil 607.The threaded mounting hole that is formed with X extension vertically on epoxy fibreglass rod 610 is (not shown, see also Fig. 2), the threaded mounting hole on the threaded mounting hole on epoxy fibreglass rod 610 and gold utensil 607 is relative and complete threaded mounting hole of formation during in installment state on axial X.
As shown in Figure 6, screw rod 601 extends along aforementioned axial X, one end of screw rod 601 passes gold utensil 607 via the threaded mounting hole on gold utensil 607 and is threaded with threaded mounting hole on epoxy fibreglass rod 210, and the other end passes the first pressing plate 604 and fixed head 603 and is threaded with at least two adjusting nuts 602.In illustrated embodiment, can come the decrement of adjustable screw spring 606 by rotation adjusting nut 602, thereby the elasticity of adjustable screw spring 606 so that can be according to practical situations, be adjusted to most suitable degree with the axial elasticity of insulator 600.
In the embodiment shown in fig. 6, screw rod 601 passes central cylindrical first accepting hole 608 of gold utensil 607, and is slidably matched with the rigidity briquetting 605 and the helical spring 606 that are contained in central cylindrical the first accepting hole 608.In illustrated embodiment, screw rod 601 also is threaded with the first pressing plate 604 and fixed head 603.
In the embodiment shown in fig. 6, but realize the axially large elasticity requirement of insulator 600 by the helical spring 606 of axial compression, simultaneously, in the inner chamber of the cylindrical body by gold utensil 607, epoxy fibreglass rod 610 and gold utensil 607 being inlaid in silicon rubber cluster parachute 609, thereby can improve the main body rigidity of silicon rubber cluster parachute 609, thereby realize the requirement of the radially large rigidity of insulator 600.
[the 7th embodiment]
Fig. 7 shows the cutaway view of insulator 700 according to a seventh embodiment of the invention.
The insulator 700 of the 7th embodiment shown in Figure 7 only is with the difference of the insulator 100 of the first embodiment shown in Figure 1: the insulator 700 of the 7th embodiment shown in Figure 7 has been removed the rigidity briquetting 105 in the insulator 100 of the first embodiment shown in Figure 1.
In the 7th embodiment shown in Figure 7, the first pressing plate 704 directly is squeezed on spring 706.
Compare with the first embodiment shown in Figure 1, the advantage of the insulator 700 of the 7th embodiment shown in Figure 7 is to simplify the structure.But, unaffected for the radial rigidity that guarantees insulator 700 in the 7th embodiment shown in Figure 7, can suitably improve the rigidity of screw rod 701, for example, screw rod 701 can adopt the larger material of rigidity to make, and perhaps increases the diameter of screw rod 701 etc.
In addition, the insulator of the 7th embodiment shown in Figure 7 700 is basic identical with the insulator 100 of the first embodiment shown in Figure 1, and same or analogous parts adopt same or analogous Reference numeral to represent, for the sake of brevity, repeats no more here.
[the 8th embodiment]
Fig. 8 shows the cutaway view according to the insulator 800 of the eighth embodiment of the present invention.
In a preferred embodiment of the invention, insulator 800 supports the insulator of the transmission line of subway or high ferro hangingly for being used for.In this applicable cases, transmission line is electrically connected to slidably with the pantograph of subway or high ferro locomotive.As saying in background technology, the insulator that this subway or high ferro are used must have enough axial elasticities, must have enough radial rigidities again simultaneously.But, note that insulator of the present invention is not limited to this, it can be the insulator of any transmission line.
As shown in Figure 8, insulator 800 mainly comprises silicon rubber cluster parachute 809, gold utensil 807, epoxy fibreglass rod 810, spring 806, the first rigidity briquetting 805, the first pressing plate 804 and the second rigidity briquetting 813.
In the embodiment shown in fig. 8, silicon rubber cluster parachute 809 has cylindrical body, is formed with the inner chamber that extends along its axial (axis) X in this cylindrical body.
Please continue referring to Fig. 8, epoxy fibreglass rod 810 is arranged in the inner chamber of silicon rubber cluster parachute 809, and roughly is full of whole inner chamber.The upper end of epoxy fibreglass rod 810 is formed with the assembling recess 817 that coordinates with gold utensil 807, and gold utensil 807 is inlaid in the assembling recess 817 of epoxy fibreglass rod 810.The side face close contact of the inner chamber of the outer peripheral face of epoxy fibreglass rod 810 and silicon rubber cluster parachute 809.In one embodiment of the invention, silicon rubber cluster parachute 809 can be embossed on epoxy fibreglass rod 810.The upper surface of gold utensil 807 is roughly concordant with the upper opening end face of the inner chamber of silicon rubber cluster parachute 809.
In the embodiment shown in fig. 8, insulator 800 also comprises the flange 811 that is positioned at its lower end, this flange 811 is threaded with the lower end of epoxy fibreglass rod 810, the lower mould of silicon rubber cluster parachute 809 is pressed on flange 811, and the lower surface of epoxy fibreglass rod 810 is resisted against on the end face of flange 811, thereby epoxy fibreglass rod 810 is fixed in the inner chamber of cylindrical body of silicon rubber cluster parachute 809.
Although not shown, flange 811 is used for fixing and keeps transmission line, thereby transmission line is supported on insulator 800 hangingly.
Please continue referring to Fig. 8, be formed with the first accepting hole 808 that extends along aforementioned axial X on gold utensil 807.
As shown in Figure 8, the first rigidity briquetting 805 is assemblied in the first accepting hole 808 of gold utensil 807, be formed with the axial hole (not indicating) that coordinates with the second rigidity briquetting 813 in the first rigidity briquetting 805, the second rigidity briquetting 813 is slidably received in the axial hole of the first rigidity briquetting 805.
As shown in Figure 8, spring 806 is set up and is squeezed between the first and second rigidity briquettings 805,813.
In the present invention, the first and second rigidity briquettings 805,813 not only can play the effect of location and extrusion spring 806, but also can improve the radial rigidity of silicon rubber cluster parachute 809.
As shown in Figure 8, the first pressing plate 804 is squeezed on the first rigidity briquetting 805, is used for the location and maintains the first rigidity briquetting 805.
As shown in Figure 8, also be formed with that extend and the installing hole 812a that be communicated with the first accepting hole 808 of X vertically on gold utensil 807.Be formed with the installing hole 812b that X vertically extends on epoxy fibreglass rod 810, the installing hole 812a on this installing hole 812b and gold utensil 807 is relative and complete installing hole 812 of formation during in installment state on axial X.
As shown in Figure 8, formed the first screw rod 814 in the bottom of the second rigidity briquetting 813, the first screw rod 814 passes the installing hole 812 of gold utensil 807 and epoxy fibreglass rod 810 and is threaded with them, thereby the second briquetting 813, gold utensil 807 and epoxy fibreglass rod 810 are fitted together.
As shown in Figure 8, insulator 800 also comprises at least two radially pins 815, this radially pin 815 along the radially extension of silicon rubber cluster parachute 809 and be fixed on gold utensil 807 and epoxy fibreglass rod 810 on.Owing to inserting radially pin 815 on insulator 800, therefore, can further improve the radial rigidity of insulator 800.
As shown in Figure 8, be formed with radial hole 816 in the first rigidity briquetting 805, radially the inner of pin 815 extends in the radial hole 816 of the first rigidity briquetting 805, and the diameter of the radial hole 816 of the first rigidity briquetting 805 is greater than pin 815 radially, make the first rigidity briquetting 805 can with respect to pin 815 radially vertically X move in preset distance, thereby the decrement of spring 806 is limited in preset distance.
As shown in Figure 8, the upper end of the first rigidity briquetting 805 is formed with the second screw rod 801, the first rigidity briquettings 805 that X vertically extends and is threaded with the first pressing plate 804 by the second screw rod 801.
As shown in Figure 8, during installation, insulator 800 is fixed on fixed head 803 on mounting bracket hangingly, and fixed head 803 is pressed against on the first pressing plate 804, and the passing fixed head 803 and be threaded with at least two adjusting nuts 802 of the second screw rod 801.In illustrated embodiment, can come the decrement of adjustable screw spring 806 by rotation adjusting nut 802, thereby the elasticity of adjustable screw spring 806 so that can be according to practical situations, be adjusted to most suitable degree with the axial elasticity of insulator 800.
Although not shown, insulator 800 can also comprise: be pressed against resilient rubbber cushion and the second pressing plate that is pressed against on resilient rubbber cushion on fixed head 803.The second screw rod 801 can pass resilient rubbber cushion and the second pressing plate and be threaded with aforesaid adjusting nut 802.
In the embodiment shown in fig. 8, spring 806 can be helical spring or butterfly spring.
[the 9th embodiment]
Fig. 9 shows the cutaway view according to the insulator 900 of the ninth embodiment of the present invention.
The insulator 900 of the 9th embodiment shown in Figure 9 mainly is with the difference of the insulator 800 of the 8th embodiment shown in Figure 8: as shown in Figure 9, the upper end of epoxy fibreglass rod 910 is end faces of general planar, and the lower end of gold utensil 907 is also the end face of general planar, therefore, in the 9th embodiment shown in Figure 9, the upper end of epoxy fibreglass rod 910 roughly evenly coordinates with the lower end of gold utensil 907.
As shown in Figure 9, the radially pin that radially extends 914 along silicon rubber cluster parachute 909 inserts and is fixed on gold utensil 907.
As shown in Figure 9, gold utensil 907 is arranged in the inner chamber of silicon rubber cluster parachute 909, and is positioned at the roughly first half of inner chamber.The roughly first half of silicon rubber cluster parachute 909 is embossed on gold utensil 907.The upper surface of gold utensil 907 is roughly concordant with the upper opening end face of the inner chamber of silicon rubber cluster parachute 909.
As shown in Figure 9, epoxy fibreglass rod 910 is arranged in the inner chamber of silicon rubber cluster parachute 909, and is positioned at the roughly Lower Half of inner chamber.The upper surface of epoxy fibreglass rod 910 is concordant with the lower surface of gold utensil 907 and be in contact with one another, and the lower openings end face of the lower surface of epoxy fibreglass rod 910 and the inner chamber of silicon rubber cluster parachute 909 is roughly concordant or protrude a little.The side face close contact of the inner chamber of the outer peripheral face of epoxy fibreglass rod 910 and silicon rubber cluster parachute 909.In one embodiment of the invention, silicon rubber cluster parachute 909 can be embossed on epoxy fibreglass rod 910.
In addition, the insulator of the 9th embodiment shown in Figure 9 900 is basic identical with the insulator 800 of the 8th embodiment shown in Figure 8, and same or analogous parts adopt same or analogous Reference numeral to represent, for the sake of brevity, repeats no more here.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can change these embodiment.The scope of application of the present invention is limited by claims and equivalent thereof.
Claims (33)
1. an insulator, is characterized in that, described insulator (100) comprising:
Silicon rubber cluster parachute (109), described silicon rubber cluster parachute (109) has cylindrical body, is formed with the inner chamber that extends along its axial (X) in described cylindrical body;
Be arranged in gold utensil (107) and the epoxy fibreglass rod (110) of the inner chamber of described silicon rubber cluster parachute (109), described gold utensil (107) and epoxy fibreglass rod (110) fit together mutually, and are formed with the first accepting hole (108) that extends along described axially (X) in described gold utensil (107);
Be contained in the spring (106) in first accepting hole (108) of described gold utensil (107); With
Compress the compression set (104,105) of described spring (106) along described axially (X).
2. insulator according to claim 1, is characterized in that,
Be formed with the first threaded mounting hole (112a) that extends along described axially (X) on described gold utensil (107), and being formed with the second threaded mounting hole (112b) that extends along described axially (X) on described epoxy fibreglass rod (110), described the first threaded mounting hole (112a) on this second threaded mounting hole (112b) and described gold utensil (107) is at described axially (X) upper relative and complete threaded mounting hole (112) of formation during in installment state;
Described gold utensil (107) and described epoxy fibreglass rod (110) fit together mutually by the screw rod (101) that is screwed into described threaded mounting hole (112).
3. insulator according to claim 2, is characterized in that,
Described screw rod (101) extends along described axially (X), one end of described screw rod (101) passes described gold utensil (107) via described the first threaded mounting hole (112a) and is threaded with second threaded mounting hole (112b) of described epoxy fibreglass rod (110), and the other end passes described compression set (104,105) and is threaded with at least two adjusting nuts (102).
4. insulator according to claim 3, is characterized in that, described compression set (104,105) comprises the first pressing plate (104) that directly is pressed against on described spring (106).
5. insulator according to claim 3, is characterized in that,
Described compression set (104,105) comprise the first pressing plate (104) and with the rigidly connected rigidity briquetting of described the first pressing plate (104) (105), described rigidity briquetting (105) is assemblied in first accepting hole (108) of described gold utensil (107) and is pressed against on described spring (106).
6. insulator according to claim 3, is characterized in that,
Also be formed with on described gold utensil (607) extend along described axially (X), with separated the second accepting hole of described the first accepting hole (608) (613);
Described insulator also comprises and the rigidly connected rigidity briquetting of described the first pressing plate (604) (605), and described rigidity briquetting (605) is assemblied in second accepting hole (613) of described gold utensil (607); And
Described the first pressing plate (604) directly is pressed against on described spring (606).
7. the described insulator of any one according to claim 1-6, it is characterized in that, during installation, described insulator (100) is fixed on fixed head (103) on mounting bracket hangingly, described fixed head (103) is pressed against on described the first pressing plate (104), and the other end of described screw rod (101) passes described fixed head (103).
8. insulator according to claim 7, is characterized in that, described insulator (500) also comprises:
Resilient rubbber cushion (512), described resilient rubbber cushion (512) are pressed against on described fixed head (503); With
The second pressing plate (513), described the second pressing plate (513) are pressed against on described resilient rubbber cushion (512),
The other end of described screw rod (501) passes described resilient rubbber cushion (512) and described the second pressing plate (513).
9. insulator according to claim 7, is characterized in that, described the first accepting hole (108) in described gold utensil (107) is the looping pit towards outward opening.
10. insulator according to claim 9, is characterized in that, described threaded mounting hole (112) is the screwed hole of centre of keeping apart with described the first accepting hole (108).
11. insulator according to claim 9, it is characterized in that, described the first accepting hole (408) in described gold utensil (407) is the central cylindrical hole towards outward opening that is communicated with described threaded mounting hole (412), and described threaded mounting hole (412) is positioned at the center of described the first accepting hole (408).
12. insulator according to claim 11, it is characterized in that, described screw rod (401) passes the threaded mounting hole (412) at the first accepting hole (408) center that is positioned at described gold utensil (407), and is slidably matched with the rigidity briquetting (405) and the spring (406) that are contained in the first accepting hole (408).
13. insulator according to claim 7 is characterized in that, described insulator (100) also comprises:
Flange (111), described flange (111) is connected to bottom one end of the insulator relative with described insulator top the first pressing plate (104) of described silicon rubber cluster parachute (109), and described flange (111) is suitable for use in the suspension transmission line.
14. insulator according to claim 13 is characterized in that, described transmission line is the transmission line of subway or high ferro, but forms being electrically connected to of relative sliding between the pantograph of described transmission line and subway or high ferro locomotive.
15. insulator according to claim 7 is characterized in that, described screw rod (101) is threaded with described the first pressing plate (104) and fixed head (103).
16. insulator according to claim 8 is characterized in that, described screw rod (501) is threaded with described the first pressing plate (504), fixed head (503) and the second pressing plate (513).
17. insulator according to claim 1 is characterized in that, described spring (106) is helical spring or butterfly spring.
18. insulator according to claim 6 is characterized in that, described the second accepting hole (613) is the looping pit towards outward opening.
19. insulator according to claim 1 is characterized in that, described compression set (804,805,813) comprising:
The first pressing plate (804);
The the first rigidity briquetting (805) that is connected with described the first pressing plate (804), described the first rigidity briquetting (805) is assemblied in first accepting hole (808) of described gold utensil (807) slidably; With
Be contained in described the first accepting hole (808) and the second rigidity briquetting (813) relative with described the first rigidity briquetting (805), described spring (806) is compressed between described the first and second rigidity briquettings (805,813).
20. insulator according to claim 19 is characterized in that,
Be formed with the first threaded mounting hole (812a) that extends along described axially (X) on described gold utensil (807), and being formed with the second threaded mounting hole (812b) that extends along described axially (X) on described epoxy fibreglass rod (810), described the first threaded mounting hole (812a) on this second threaded mounting hole (812b) and described gold utensil (807) is at described axially (X) upper relative and complete threaded mounting hole (812) of formation during in installment state;
Described gold utensil (807) and described epoxy fibreglass rod (810) fit together mutually by the first screw rod (814) that is screwed into described threaded mounting hole (812).
21. insulator according to claim 20 is characterized in that,
Be formed with the axial hole that coordinates with the second rigidity briquetting (813) in described the first rigidity briquetting (805), described the second rigidity briquetting (813) is slidably received in the axial hole of described the first rigidity briquetting (805).
22. insulator according to claim 21 is characterized in that, described the first screw rod (814) is formed on the bottom of described the second rigidity briquetting (813).
23. insulator according to claim 22 is characterized in that,
The upper end of described epoxy fibreglass rod (810) is formed with the assembling that coordinates with described gold utensil (807) recessed (817), and described gold utensil (807) is inlaid in the assembling recess (817) of described epoxy fibreglass rod (810).
24. insulator according to claim 23 is characterized in that,
Described insulator also comprises at least two radially pins (815), described radially pin (815) along the radially extension of described silicon rubber cluster parachute (809) and be fixed on described gold utensil (807) and described epoxy fibreglass rod (810) on.
25. insulator according to claim 22 is characterized in that,
The upper end of described epoxy fibreglass rod (910) roughly evenly coordinates with the lower end of described gold utensil (907), and described the first rigidity briquetting (805) and the second rigidity briquetting (813) are contained in the first accepting hole (908) on described gold utensil (910).
26. insulator according to claim 25 is characterized in that,
Described insulator also comprises at least two radially pins (914), and described radially pin (914) is along the radially extension of described silicon rubber cluster parachute (909) and be fixed on described gold utensil (907).
27. according to claim 24 or 26 described insulators is characterized in that,
Be formed with radial hole (816,916) in described the first rigidity briquetting (805,905), the inner of described radially pin (815,915) extends in the radial hole (816,916) of described the first rigidity briquetting (805,905), and
Described the first rigidity briquetting (805,905) radial hole (816,916) diameter is greater than described radially pin (815,915) diameter, make described the first rigidity briquetting (805,905) to move in preset distance along described axially (X) with respect to described radially pin (815,915), thereby the decrement of described spring (806,906) is limited in preset distance.
28. insulator according to claim 27 is characterized in that,
The upper end of described the first rigidity briquetting (805,905) is formed with the second screw rod (801), and described the first rigidity briquetting (805,905) is threaded by described the second screw rod (801,801) and described the first pressing plate (804,804).
29. insulator according to claim 28 is characterized in that, during installation, described insulator (800,900) be fixed on hangingly on fixed head (803,903) on mounting bracket described fixed head (803,903) be pressed against described the first pressing plate (804,904) on, and the other end of described the second screw rod (801,901) passes described fixed head (803,903) and with at least two adjusting nuts (802,902) be threaded.
30. insulator according to claim 29 is characterized in that, described insulator (800,900) also comprises:
Resilient rubbber cushion, described resilient rubbber cushion are pressed against on described fixed head (803,903); With
The second pressing plate, described the second pressing plate is pressed against on described resilient rubbber cushion,
Described the second screw rod (801,901) passes described resilient rubbber cushion and described the second pressing plate.
31. insulator according to claim 29 is characterized in that, described insulator (800,900) also comprises:
Flange (811,911), described flange (811,911) be connected to described silicon rubber cluster parachute (809,909) with described insulator top the first pressing plate (804,904) bottom one end of relative insulator, described flange (811,911) is suitable for use in the suspension transmission line.
32. insulator according to claim 31 is characterized in that, described transmission line is the transmission line of subway or high ferro, but forms being electrically connected to of relative sliding between the pantograph of described transmission line and subway or high ferro locomotive.
33. insulator according to claim 19 is characterized in that, described spring (806,906) is helical spring or butterfly spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210134900.6A CN103383884B (en) | 2012-05-03 | 2012-05-03 | Insulator |
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| CN201210134900.6A CN103383884B (en) | 2012-05-03 | 2012-05-03 | Insulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104700925A (en) * | 2015-03-18 | 2015-06-10 | 成都森发橡塑有限公司 | Material of elastic connector for composite insulator |
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| GB273370A (en) * | 1926-03-19 | 1927-06-20 | British Thomson Houston Co Ltd | Improvements relating to transformers and other electrical apparatus and to electric terminals |
| US3760089A (en) * | 1972-04-27 | 1973-09-18 | Westinghouse Electric Corp | Electrical bushing assembly having resilient means enclosed within sealing means |
| CN201435277Y (en) * | 2009-05-07 | 2010-03-31 | 李鹏 | lightning-proof insulator |
| CN202632901U (en) * | 2012-05-03 | 2012-12-26 | 泰科电子(上海)有限公司 | Insulator |
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2012
- 2012-05-03 CN CN201210134900.6A patent/CN103383884B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB273370A (en) * | 1926-03-19 | 1927-06-20 | British Thomson Houston Co Ltd | Improvements relating to transformers and other electrical apparatus and to electric terminals |
| US3760089A (en) * | 1972-04-27 | 1973-09-18 | Westinghouse Electric Corp | Electrical bushing assembly having resilient means enclosed within sealing means |
| CN201435277Y (en) * | 2009-05-07 | 2010-03-31 | 李鹏 | lightning-proof insulator |
| CN202632901U (en) * | 2012-05-03 | 2012-12-26 | 泰科电子(上海)有限公司 | Insulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104700925A (en) * | 2015-03-18 | 2015-06-10 | 成都森发橡塑有限公司 | Material of elastic connector for composite insulator |
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