CN113643864A - Cross arm insulator reinforcement device - Google Patents
Cross arm insulator reinforcement device Download PDFInfo
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- CN113643864A CN113643864A CN202111046884.0A CN202111046884A CN113643864A CN 113643864 A CN113643864 A CN 113643864A CN 202111046884 A CN202111046884 A CN 202111046884A CN 113643864 A CN113643864 A CN 113643864A
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- arm insulator
- cross arm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
- H01B17/40—Cementless fittings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention relates to the technical field of cross arm insulators, in particular to a cross arm insulator reinforcing device which comprises a clamping component, wherein the clamping component is arranged on an iron tower angle steel for fixing a cross arm insulator and is tightly attached to the fixed end of the cross arm insulator, the clamping component comprises a first clamping piece and a second clamping piece, the second clamping piece comprises a straight section and a bent section, the straight section of the second clamping piece is slidably assembled with the first clamping piece, a locking component is arranged on the side of the first clamping piece, and the first clamping piece and the bent section of the second clamping piece move oppositely under the action of the locking component to clamp the iron tower angle steel so as to limit the cross arm insulator. The cross arm insulator reinforcing device provided by the invention can effectively improve the firmness of the cross arm insulator, reduce the skew angle of the cross arm insulator in the operation process, eliminate the potential safety hazard of tripping and power failure caused by insufficient electrical distance generated by windage yaw, and enable operators to perform live-line reinforcing operation, so that the time consumption is short, and the efficiency is high.
Description
Technical Field
The invention relates to the technical field of cross arm insulators, in particular to a cross arm insulator reinforcing device.
Background
The line cross arm insulator is a rod-shaped insulator, and the material of the insulator mainly comprises two main types of ceramics and composite materials. The line cross arm insulator is arranged on an electric pole to support a lead, so that the effect of insulating the lead from the ground is achieved, and the effect of a cross arm is achieved. Composite cross arms are commonly used for transmission line cable termination poles.
In recent years, with the increase of urbanization speed, the area of a central urban area is continuously enlarged, the number of kilometers of an overhead transmission line with a cable entering the ground is continuously increased, meanwhile, in order to meet the requirements of government departments and important customers, the number of kilometers of the overhead transmission line with the cable entering the ground is also increased year by year in some sections, and therefore, the number of cable terminal poles of the transmission line is also stably increased. The cable terminal tower uses the cable downlead to lead the overhead transmission line into the ground, and each base cable terminal tower has three cable downleads, and the cross arm insulator plays an important role in supporting the downlead and keeping the downlead insulated from a tower.
On one hand, as part of the old composite cross arm only has the through screw hole and does not have the positioning screw hole, the cross arm insulator cannot effectively bear the stress along the line direction, and the obvious windage yaw appears after the cross arm insulator is put into operation. On the other hand, for the composite cross arm with the positioning screw holes, due to the construction quality difference of capital construction teams, part of construction personnel do not form holes on the angle steel in the installation process of the cross arm insulator, so that the positioning bolts cannot be installed, and the cross arm insulator has windage yaw after the line is put into operation. Therefore, the existing cross arm insulators fixed only by the penetrating screw rod have the potential risk of windage yaw.
When the cross arm insulator has windage yaw, the distance between the fixed lead and the adjacent lead is reduced immediately, and then the risk of insufficient safety distance is generated, thereby causing the possibility of tripping and power failure of the line. Traditional cross arm insulator's reinforcement mode reaches the reinforcement effect through filling up cross-core bolt or at rear end ligature aluminium stranded conductor. The mode of mounting the center-penetrating bolt is only suitable for the cross arm insulator with the center-penetrating screw hole, and the time is long because the cross arm insulator needs to be dismounted and the angle steel needs to be perforated; although the mode of binding the aluminum stranded wire is suitable for various cross arm insulators, the reinforcing effect is poor, and the possibility of windage yaw still exists. In addition, the two reinforcement modes can be performed only after the line is powered off, and each operation needs to be matched with the power-off plan of a company to arrange a work task, so that the time consumption is long, and the efficiency is low.
Disclosure of Invention
The invention provides a cross arm insulator reinforcing device, which aims to solve the technical problems of long time consumption and low efficiency of cross arm insulator reinforcing operation in the prior art, can effectively improve the firmness of a cross arm insulator, eliminate the potential safety hazard of tripping and power failure caused by insufficient electrical distance generated by wind deflection, and has short time consumption and high efficiency.
The technical scheme of the invention is as follows:
the utility model provides a cross arm insulator reinforcement device, includes the centre gripping subassembly, the centre gripping subassembly is set up fixedly on the iron tower angle steel of cross arm insulator, and the centre gripping subassembly hugs closely the stiff end setting of cross arm insulator, the centre gripping subassembly includes:
a first clamping member;
the second clamping piece comprises a straight section and a bent section, the straight section of the second clamping piece is assembled with the first clamping piece in a sliding mode, a locking assembly is arranged on the side of the first clamping piece, and the first clamping piece and the bent section of the second clamping piece move oppositely under the action of the locking assembly to clamp the iron tower angle steel in a limiting mode.
Furthermore, the locking assembly comprises a locking shaft and a locking handle, the two ends of the locking shaft are respectively connected to the two extending ends of the second clamping pieces, an eccentric hole is formed in the first end of the locking handle, the locking shaft is sleeved with the eccentric hole, a locking arc surface for pressing the first clamping pieces is further formed at the first end of the locking handle, and an operation hole is formed in the second end of the locking handle.
Furthermore, one side of the first clamping piece is provided with the locking assembly, the other side of the first clamping piece is provided with a spring, the first end of the spring abuts against the first clamping piece, and the second end of the spring abuts against the limiting part on the second clamping piece.
Furthermore, the number of the second clamping pieces is two, two sliding sleeves are correspondingly arranged on the first clamping piece towards the bending section of the second clamping piece, the straight sections of the two second clamping pieces respectively slide in the two sliding sleeves, and one of the sliding sleeves is arranged to be tightly attached to the fixed end of the cross arm insulator.
Furthermore, the cross arm insulator reinforcing device further comprises a loading and unloading assembly, the first end of the loading and unloading assembly is connected with the clamping assembly, and the second end of the loading and unloading assembly is connected with the insulating operating rod.
Further, the assembly and disassembly assembly comprises a detachable upper connecting piece and a detachable lower connecting piece, the upper connecting piece is connected to the first clamping piece, and the lower connecting piece is connected to the insulating operating rod.
Further, the upper connecting piece is of a hollow cylindrical structure, a buckle groove is formed in the side wall of the upper connecting piece and comprises a vertical groove, a horizontal groove and a vertical kidney-shaped groove, one end of the vertical groove is communicated with the bottom of the upper connecting piece, the other end of the vertical groove is communicated with the first end of the horizontal groove, a vertical kidney-shaped groove is formed in the second end of the horizontal groove, the lower connecting piece is of a cylindrical structure, a fixing pin is arranged on the side wall of the lower connecting piece, and when the lower connecting piece is connected with the upper connecting piece, the fixing pin sequentially penetrates through the vertical groove and the horizontal groove of the buckle groove and then is limited by the vertical kidney-shaped groove.
Further, the second end of the loading and unloading assembly is connected with the insulating operating rod through a supporting assembly.
Further, the supporting assembly comprises an upper connecting plate and a lower connecting plate, the upper connecting plate is fixedly connected with the loading and unloading assembly, the lower connecting plate is fixedly connected with the insulating operating rod, and the upper connecting plate is in threaded connection with the lower connecting plate.
Furthermore, a plurality of first toothed protrusions and first toothed grooves are arranged on the upper connecting plate, a plurality of second toothed protrusions and second toothed grooves are arranged on the lower connecting plate, and when the upper connecting plate is connected with the lower connecting plate, the second toothed protrusions are matched with the first toothed grooves and the second toothed grooves are matched with the first toothed protrusions to prevent the upper connecting plate and the lower connecting plate from rotating relatively.
After the technical scheme is adopted, compared with the prior art, the cross arm insulator reinforcing device provided by the invention has the following beneficial effects:
1. the iron tower angle steel is clamped by the clamping assembly, and the clamping assembly is tightly attached to the outer side of the fixed end of the cross arm insulator, so that the cross arm insulator can be prevented from deflecting, the fastening torque of the cross arm insulator is ensured, the requirements of the maximum skew degree of the cross arm insulator and the safety distance of the overhead transmission line of each voltage class specified by relevant regulations are met, the potential line tripping hazard caused by windage yaw of the cross arm insulator is eliminated, and the operation reliability of the transmission line is improved.
2. The reinforcing device provided by the invention has a good reinforcing effect, does not need to disassemble the cross arm insulator, and is convenient and rapid to operate and high in efficiency. And use this reinforcing apparatus to realize electrified reinforcement cross arm insulator, solved the problem that the power failure reinforcement operation is restricted by the power failure plan, effectively reduce the reinforcement operation consuming time.
Drawings
Fig. 1 is a schematic view of an installation structure of a cross arm insulator to be reinforced according to the present embodiment;
fig. 2 is a schematic view illustrating an installation of the cross arm insulator reinforcing apparatus according to the present embodiment;
FIG. 3 is a schematic view of the clamping assembly and the locking assembly of the present embodiment before locking;
FIG. 4 is a schematic view of the clamping assembly and the locking assembly of the present embodiment after locking;
FIG. 5 is a schematic structural view of the lock handle of the present embodiment;
fig. 6 is a schematic view of the overall structure of the cross arm insulator reinforcing apparatus of the present embodiment;
FIG. 7 is a schematic view showing the connection of the upper and lower connection members according to the present embodiment;
FIG. 8 is a schematic view of a support assembly of the present embodiment;
fig. 9 is an exploded view of the support assembly of the present embodiment.
Wherein the content of the first and second substances,
the cross arm insulator comprises a cross arm insulator 1, a piercing screw hole 11 and a positioning screw hole 12; angle iron tower 2; the clamping assembly 3, the first clamping piece 31, the sliding sleeve 311, the second clamping piece 32, the straight section 321, the bent section 322, the limiting part 323 and the spring 33; the locking assembly 4, the locking shaft 41, the locking handle 42, the eccentric hole 421, the locking arc surface 422, the operation hole 423 and the limit nut 43; the assembling and disassembling component 5, an upper connecting piece 51, a buckling groove 511, a vertical groove 5111, a horizontal groove 5112, a vertical kidney-shaped groove 5113, a lower connecting piece 52 and a fixing pin 521; the support component 6, the upper connecting plate 61, the first tooth-shaped protrusion 611, the first tooth-shaped groove 612, the lower connecting plate 62, the second tooth-shaped protrusion 621, the second tooth-shaped groove 622 and the screw 63; the operating rod 7 is insulated.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, when installing the cross arm insulator 1, one end of the cross arm insulator 1 is fixedly installed on the angle iron tower 2, the cross arm insulator 1 is generally provided with a through screw hole 11 and a positioning screw hole 12, the angle iron tower 2 is also correspondingly provided with two screw holes, the cross arm insulator 1 is fixed by the through bolt passing through the through screw hole 11 and the angle iron tower 2 on the cross arm insulator 1, and the cross arm insulator 1 is positioned by the positioning bolt passing through the positioning screw hole 12 and the angle iron tower 2 on the cross arm insulator 1, so that the cross arm insulator 1 can be prevented from deflecting by taking the through bolt as the center.
However, some of the old cross arm insulators 1 only have the piercing screw holes 11 and no positioning screw holes 12, and cannot be positioned; in the cross arm insulator 1 with the positioning screw hole 12, the constructor often forgets to open a hole in the angle iron or to install the positioning bolt. According to the regulations of the handbook for designing high-voltage power transmission lines in electric power engineering, the maximum allowable design wind load wind speed of the overhead conductor is 27m/s, and although the fixed torque of the through bolt is generally larger than the torque generated when the wind speed is 27m/s, the fixed torque is attenuated after the line runs for a long time, so that the fixed torque of the through bolt is reduced, and wind deviation is generated. Therefore, all the existing cross arm insulators fixed only by the through bolts have potential safety hazards of windage yaw, and need to be reinforced.
As shown in fig. 2-4, the present embodiment provides a cross arm insulator reinforcing apparatus, which reinforces the cross arm insulator 1, and the reinforcing apparatus includes a clamping component 3 and a locking component 4, wherein the clamping component 3 clamps the angle iron tower 2 under the action of the locking component 4 to limit the cross arm insulator 1. Specifically, the clamping component 3 is arranged on the iron tower angle steel 2 of the fixed cross arm insulator 1, and the clamping component 3 is arranged close to the outer side of the fixed end of the cross arm insulator 1. Further, the clamping assembly 3 comprises a first clamping piece 31 and a second clamping piece 32, wherein the first clamping piece 31 is arranged on the left side of the angle iron 2; the second clamping piece 32 comprises a straight section 321 and a bent section 322, the straight section 321 is positioned above the angle iron tower 2 and is assembled with the first clamping piece 31 in a sliding manner, the bent section 322 is positioned on the right side of the angle iron tower 2, and the angle iron tower 2 is clamped between the bent section 322 of the first clamping piece 31 and the bent section 322 of the second clamping piece 32; the locking assembly 4 is also arranged on the side of the first clamping piece 31. In an initial state, the distance between the bending sections 322 of the first clamping piece 31 and the second clamping piece 32 is larger than the width of the angle iron tower 2; when the locking assembly 4 acts, the bending sections 322 of the first clamping piece 31 and the second clamping piece 32 move oppositely to clamp the angle iron tower 2, so that the cross arm insulator 1 is reinforced. Because the clamping component 3 is tightly attached to the fixed end of the cross arm insulator 1, when the cross arm insulator 1 has windage yaw rotation trend, the clamping force and the static friction force between the clamping component 3 and the angle iron 2 of the iron tower can limit the cross arm insulator 1, and the deflection of the cross arm insulator is prevented.
Like this, this embodiment comes centre gripping iron tower angle steel 2 through setting up centre gripping subassembly 3 to set up the stiff end that centre gripping subassembly 3 hugs closely cross arm insulator 1, cross arm insulator 1 if will deflect, must overcome clamp force and static friction between centre gripping subassembly 3 and iron tower angle steel 2, can prevent through the setting to centre gripping subassembly 3 that cross arm insulator 1 from taking place to deflect, realizes the reinforcement. This kind of reinforcement mode not only the reinforcement is effectual, need not to pull down cross arm insulator 1 moreover, and convenient operation is swift, efficient. In addition, this kind of reinforcement mode is because centre gripping subassembly 3 sets up the outside at cross arm insulator 1 stiff end, does not receive the model influence of cross arm insulator 1, can strengthen the cross arm insulator of various sizes and models, the cross arm insulator that takes location screw 12 or does not take location screw 12, has the universality.
Preferably, as shown in fig. 3 to 4, in the present embodiment, the second clamping member 32 is a tubular structure and the number of the second clamping members 32 is two, two sliding sleeves 311 are correspondingly disposed on the first clamping member 31 toward the bending section 322 of the second clamping member 32, the straight sections 321 of the two second clamping members 32 can respectively slide in the two sliding sleeves 311, and the straight sections 321 of the two second clamping members 32 can extend to one side of the first clamping member 31, so that the two second clamping members 32 can better clamp the angle iron 2. Further, one of the sliding sleeves 311 is disposed in close contact with the fixed end of the cross arm insulator 1, and the cross arm insulator 1 is limited by the sliding sleeve 311. Of course, since the whole clamping assembly 3 is fixed after being locked, the cross-arm insulator 1 can be limited by extending a limiting surface on the first clamping piece 31 or the second clamping piece 32.
For the locking assembly 4, a thread can be arranged at the extending end of each second clamping piece 32, and the nut is used for spinning locking, but the structure can have torque attenuation to a certain degree, and the structure is inconvenient to operate and cannot realize electrified reinforcement.
The locking assembly 4 of the present embodiment adopts a pressing structure, and specifically, as shown in fig. 3 to 5, the locking assembly 4 includes a locking shaft 41 and a locking handle 42, and two ends of the locking shaft 41 are respectively connected to the protruding ends of the two second clamping members 32 and are axially limited by a limiting nut 43. The first end of the locking handle 42 is provided with an eccentric hole 421 sleeved on the locking shaft 41 and is limited at the middle position of the locking shaft 41 through a nut, the middle position of the locking shaft 41 is provided with a unthreaded polished rod corresponding to the eccentric hole 421, and the locking handle 42 can rotate around the locking shaft 41; further, a locking arc 422 for pressing the first clamping member 31 is further formed at the first end of the locking handle 42, the distance between each point on the locking arc 422 and the eccentric hole 421, i.e. the curvature radius, gradually increases along the clockwise direction in fig. 5, and when the locking handle 42 rotates from the state shown in fig. 3 to the state shown in fig. 4, the distance between the locking shaft 41 and the first clamping member 31 gradually increases until the connecting line between the contact point on the locking arc 422 and the first clamping member 31 and the center of the eccentric hole 421 is parallel to the straight section 321 of the second clamping member 32, so as to complete the locking of the clamping assembly 3. Furthermore, the second end of the lock handle 42 is provided with an operation hole 423, when reinforcement operation is performed, after the clamping component 3 and the locking component 4 are conveyed to the iron tower angle steel 2 through the insulating operation rod 7, the lock handle 42 can be locked by rotating the lock handle through an insulating tool with a hook, operation is convenient, power failure is not needed, and live reinforcement operation can be achieved.
Further, in the present embodiment, two springs 33 are disposed on the other side of the first clamping member 31, and the two springs 33 are respectively sleeved on the two second clamping members 32. As shown in fig. 3-4, the first ends of the two springs 33 abut against the sliding sleeve 311 on the first clamping member 31, the second clamping member 32 is further provided with a limiting portion 323, the limiting portion 323 can be a screw or a limiting protrusion formed on the second clamping member 32, and the second end of the spring 33 abuts against the limiting portion 323. In the locking structure of the embodiment, the material and size of the locking shaft 41 are set to make the strength of the locking shaft 41 greater than the shearing force, so as to prevent the locking shaft 41 from deforming to cause the attenuation of the clamping force, and the spring 33 is further set, so that the distance between the locking shaft 41 and the first clamping piece 31 is kept unchanged, the locking handle 42 is always in a locking state, the locking handle 42 is prevented from moving, and the attenuation of the clamping force is further prevented.
In order to send clamping component 3 and locking component 4 to angle iron tower 2, this embodiment still is equipped with handling subassembly 5, and clamping component 3 is connected to handling subassembly 5's first end, and handling subassembly 5's second end is directly or indirectly connected in insulating bar 7, sends clamping component 3 and locking component 4 to angle iron tower 2 through insulating bar 7 on. Specifically, as shown in fig. 6 to 7, the handling assembly 5 includes an upper connecting member 51 and a lower connecting member 52 which are detachably connected, the upper connecting member 51 is connected to the bottom of the first clamping member 31, the lower connecting member 52 is directly or indirectly connected to the insulating operating rod 7, and after the upper connecting member 51, the clamping assembly 3 and the locking assembly 4 are delivered to the angle iron 2, the lower connecting member 52 can be separated from the upper connecting member 51. For example, the upper link 51 and the lower link 52 may have a spring pin structure in which a spring pin is provided on the upper link 51 and a pin hole is provided on the lower link 52, but with this structure, it is difficult to find the corresponding pin hole and eject the spring pin due to the small size of the spring pin, which takes a long time. Or a threaded connection structure can be adopted, but the threaded connection needs precise butt joint, the axes of the upper connecting piece 51 and the lower connecting piece 52 need to be in a straight line, the alignment is difficult, the operation is inconvenient, and meanwhile, the threaded connection also needs a certain time, so the time consumption is long.
The detachable connection is realized by arranging the fixing pin 521 and the fastening groove 511 in the embodiment, specifically, as shown in fig. 6-7, the upper connecting piece 51 is of a hollow cylindrical structure, the fastening groove 511 is formed in the side wall of the upper connecting piece 51, the fastening groove 511 comprises a vertical groove 5111, a horizontal groove 5112 and a vertical waist-shaped groove 5113, one end of the vertical groove 5111 is communicated with the bottom of the upper connecting piece 51, the other end of the vertical groove 5111 is communicated with the first end of the horizontal groove 5112, and the second end of the horizontal groove 5112 is formed with the vertical waist-shaped groove 5113. The lower connecting member 52 has a cylindrical structure, the outer diameter of which is slightly smaller than the inner diameter of the upper connecting member 51, so that the lower connecting member can be inserted into the upper connecting member 51, and the side wall of the lower connecting member 52 is provided with a fixing pin 521. When the lower connecting piece 52 is connected with the upper connecting piece 51, the fixing pin 521 firstly passes through the vertical groove 5111 of the fastening groove 511, then the insulating operating rod 7 is rotated, so that the fixing pin 521 passes through the horizontal groove 5112, and then the fixing pin 521 moves upwards so that the fixing pin 521 is limited by the vertical waist-shaped groove 5113; when the lower link 52 is separated from the upper link 51, the fixing pin 521 is withdrawn from the vertical groove 5113, and then the insulating operating rod 7 is rotated in the reverse direction such that the fixing pin 521 passes through the horizontal groove 5112 and then is withdrawn from the vertical groove 5111. Of course, in other embodiments, the fixing pin 521 may be disposed on the upper connecting member 51, and the locking groove 511 may be disposed on the lower connecting member 52. In this way, the docking and separating processes of the upper connecting piece 51 and the lower connecting piece 52 of the present embodiment are all completed in a direct viewing state, and the high precision requirement of threaded connection is not needed during docking, so that the operation is convenient and fast, and the consumed time is short.
As shown in fig. 6-9, the second end of the handling assembly 5 is connected to the insulated operating rod 7 through the supporting assembly 6, specifically, the supporting assembly 6 includes an upper connecting plate 61 and a lower connecting plate 62, the upper connecting plate 61 is fixedly connected to the handling assembly 5, the lower connecting plate 62 is fixedly connected to the insulated operating rod 7, and the upper connecting plate 61 and the lower connecting plate 62 are connected by screw threads. During the reinforcement operation, the position that the operating personnel is located is not necessarily under iron tower angle steel 2, need have certain angle between insulating bar 7 and the centre gripping subassembly 3, can be when the reinforcement operation through threaded connection, link board 61 and the angle of linking board 62 down in the adjustment, thereby the adjustment reinforcement operation angle, but this kind of structural strength through threaded connection is lower, especially behind centre gripping subassembly 3 presss from both sides tight iron tower angle steel 2, the operating personnel probably is to the application of force of insulating bar 7, link board 61 and linking board 62 down and easily take place relative rotation, there is the potential safety hazard.
As shown in fig. 7-9, in the present embodiment, a plurality of first tooth-shaped protrusions 611 are disposed on the upper connecting plate 61, a first tooth-shaped groove 612 is formed between every two tooth-shaped protrusions, and correspondingly, a plurality of second tooth-shaped protrusions 621 are disposed on the lower connecting plate 62, and a second tooth-shaped groove 622 is formed between every two second tooth-shaped protrusions 621. When the upper connecting plate 61 is connected with the lower connecting plate 62, the second toothed projection 621 is just embedded into the first toothed groove 612, and the first toothed projection 611 is just embedded into the second toothed groove 622, and then locked by the screw 63 and the nut. Therefore, the angle can be adjusted before operation, the relative rotation of the upper connecting plate 61 and the lower connecting plate 62 can be effectively prevented during operation, and the reliability and the safety are improved. Preferably, the rear end of the screw 63 in the supporting member 6 is bent downward to form a hook shape, and the hook portion can be used to hook the operation hole 423 in the locking member 4 after the supporting member 6 is withdrawn.
According to the cross arm insulator reinforcing device provided by the embodiment, the firmness of the cross arm insulator can be effectively improved, the deflection angle of the cross arm insulator in the operation process is reduced, the potential safety hazard of tripping power failure caused by insufficient electrical distance generated by windage yaw is eliminated, and the operation personnel can perform live reinforcement operation, so that the time consumption is short, and the efficiency is high.
In addition, the reinforcing device of the embodiment does not change the original effective insulation length of the insulation operating rod, and has no influence on the safety of operators. Meanwhile, the clamping assembly on the reinforcing device is positioned at the fixed end of the cross arm insulator close to the tower body, the insulating property of the original cross arm insulator is not influenced, and the circuit operation is not influenced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a cross arm insulator reinforcement device, its characterized in that includes centre gripping subassembly (3), centre gripping subassembly (3) are set up on fixed iron tower angle steel (2) of cross arm insulator (1), and centre gripping subassembly (3) are hugged closely the stiff end setting of cross arm insulator (1), centre gripping subassembly (3) include:
a first clamp (31);
second holder (32), second holder (32) are including straight section (321) and bending segment (322), straight section (321) of second holder (32) with first holder (31) sliding assembly, the side of first holder (31) is equipped with locking Assembly (4), bending segment (322) of first holder (31) and second holder (32) move in opposite directions under the effect of locking Assembly (4) press from both sides tightly iron tower angle steel (2) with spacing cross arm insulator (1).
2. The cross arm insulator reinforcing device according to claim 1, wherein the locking assembly (4) comprises a locking shaft (41) and a locking handle (42), two ends of the locking shaft (41) are respectively connected to the extending ends of the two second clamping pieces (32), a first end of the locking handle (42) is provided with an eccentric hole (421) which is sleeved on the locking shaft (41), a locking arc surface (422) which presses the first clamping piece (31) is further formed at the first end of the locking handle (42), and a second end of the locking handle (42) is provided with an operation hole (423).
3. The cross-arm insulator reinforcement device according to claim 2, wherein the locking assembly (4) is arranged on one side of the first clamping piece (31), a spring (33) is arranged on the other side of the first clamping piece (31), a first end of the spring (33) abuts against the first clamping piece (31), and a second end of the spring (33) abuts against a limiting part (323) on the second clamping piece (32).
4. The cross-arm insulator reinforcement device according to claim 3, wherein the number of the second clamping members (32) is two, two sliding sleeves (311) are correspondingly arranged on the bent section (322) of the first clamping member (31) facing the second clamping member (32), the straight sections (321) of the two second clamping members (32) respectively slide in the two sliding sleeves (311), and one sliding sleeve (311) is arranged to be tightly attached to the fixed end of the cross-arm insulator (1).
5. The cross-arm insulator reinforcing device according to claim 1 or 4, further comprising a loading and unloading assembly (5), wherein a first end of the loading and unloading assembly (5) is connected with the clamping assembly (3), and a second end of the loading and unloading assembly (5) is connected with an insulating operating rod (7).
6. The cross-arm insulator reinforcement arrangement according to claim 5, characterized in that the handling assembly (5) comprises a detachable upper connector (51) and a lower connector (52), the upper connector (51) being connected to the first clamping member (31) and the lower connector (52) being connected to the insulated operating rod (7).
7. The cross-arm insulator reinforcing apparatus according to claim 6, wherein the upper connecting member (51) is a hollow cylindrical structure, the side wall of the upper connecting piece (51) is provided with a buckling groove (511), the buckling groove (511) comprises a vertical groove (5111), a horizontal groove (5112) and a vertical kidney-shaped groove (5113), one end of the vertical groove (5111) is communicated with the bottom of the upper connecting piece (51), the other end of the vertical groove (5111) is communicated with the first end of the horizontal groove (5112), a vertical kidney-shaped groove (5113) is formed at the second end of the horizontal groove (5112), the lower connecting piece (52) is of a cylindrical structure, the side wall of the lower connecting piece (52) is provided with a fixing pin (521), when the lower connecting piece (52) is connected with the upper connecting piece (51), the fixing pin (521) sequentially penetrates through the vertical groove (5111) and the horizontal groove (5112) of the buckling groove (511) and then is limited by the vertical kidney-shaped groove (5113).
8. The cross-arm insulator reinforcement arrangement according to claim 5, characterized in that the second end of the handling assembly (5) is connected to the insulated operating rod (7) by means of a support assembly (6).
9. The cross-arm insulator reinforcement device according to claim 8, characterized in that the support assembly (6) comprises an upper connecting plate (61) and a lower connecting plate (62), the upper connecting plate (61) is fixedly connected to the handling assembly (5), the lower connecting plate (62) is fixedly connected to the insulating operating rod (7), and the upper connecting plate (61) and the lower connecting plate (62) are in threaded connection.
10. The cross arm insulator reinforcing device of claim 9, wherein a plurality of first tooth-shaped protrusions (611) and first tooth-shaped grooves (612) are arranged on the upper connecting plate (61), a plurality of second tooth-shaped protrusions (621) and second tooth-shaped grooves (622) are arranged on the lower connecting plate (62), and when the upper connecting plate (61) is connected with the lower connecting plate (62), the second tooth-shaped protrusions (621) are matched with the first tooth-shaped grooves (612) and the second tooth-shaped grooves (622) are matched with the first tooth-shaped protrusions (611) to prevent the upper connecting plate (61) and the lower connecting plate (62) from rotating relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN1826668A (en) * | 2003-07-21 | 2006-08-30 | 益电爱株式会社 | Insulator integrated with clamp |
| CN101357660A (en) * | 2008-09-09 | 2009-02-04 | 王建国 | Vehicle frame folding box |
| JP2009118561A (en) * | 2007-11-02 | 2009-05-28 | Chugoku Electric Power Co Inc:The | Insulator bind |
| US20090188698A1 (en) * | 2008-01-29 | 2009-07-30 | Francois Cloutier | Electric cable and insulator self-locking system, and method of installation thereof |
| CN204376274U (en) * | 2015-01-21 | 2015-06-03 | 广州南方电力集团电安建设有限公司 | A kind of fixture of charged for replacement 10kV outdoor disconnecting link |
| CN105226562A (en) * | 2015-10-22 | 2016-01-06 | 广州供电局有限公司 | A kind of post insulator auxiliary replacement device and mounting structure |
| CN105226412A (en) * | 2015-10-23 | 2016-01-06 | 国网山东郓城县供电公司 | Multifunctional grounding wire insulating bar |
| CN211647533U (en) * | 2019-12-09 | 2020-10-09 | 上海神马电力工程有限公司 | Connection fitting and power transmission tower |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0740379A1 (en) * | 1995-04-24 | 1996-10-30 | Oy Sekko Ab | Arching protection device for coated medium-voltage cables |
| JP2001078340A (en) * | 1999-09-02 | 2001-03-23 | Tokyo Electric Power Co Inc:The | Anchoring appliance for branching overhead electric wire between utility poles |
| CN1826668A (en) * | 2003-07-21 | 2006-08-30 | 益电爱株式会社 | Insulator integrated with clamp |
| JP2009118561A (en) * | 2007-11-02 | 2009-05-28 | Chugoku Electric Power Co Inc:The | Insulator bind |
| US20090188698A1 (en) * | 2008-01-29 | 2009-07-30 | Francois Cloutier | Electric cable and insulator self-locking system, and method of installation thereof |
| CN101357660A (en) * | 2008-09-09 | 2009-02-04 | 王建国 | Vehicle frame folding box |
| CN204376274U (en) * | 2015-01-21 | 2015-06-03 | 广州南方电力集团电安建设有限公司 | A kind of fixture of charged for replacement 10kV outdoor disconnecting link |
| CN105226562A (en) * | 2015-10-22 | 2016-01-06 | 广州供电局有限公司 | A kind of post insulator auxiliary replacement device and mounting structure |
| CN105226412A (en) * | 2015-10-23 | 2016-01-06 | 国网山东郓城县供电公司 | Multifunctional grounding wire insulating bar |
| CN211647533U (en) * | 2019-12-09 | 2020-10-09 | 上海神马电力工程有限公司 | Connection fitting and power transmission tower |
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| Publication number | Publication date |
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| CN113643864B (en) | 2023-09-08 |
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