CN210806689U - Novel prevent bird's nest cross arm structure - Google Patents
Novel prevent bird's nest cross arm structure Download PDFInfo
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- CN210806689U CN210806689U CN201921497897.8U CN201921497897U CN210806689U CN 210806689 U CN210806689 U CN 210806689U CN 201921497897 U CN201921497897 U CN 201921497897U CN 210806689 U CN210806689 U CN 210806689U
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Abstract
The utility model relates to a novel anti-bird nest cross arm structure, which comprises a U-shaped cross arm, a hoop, a three-hole connecting plate, a five-hole connecting plate and an isolating switch; the U-shaped cross arm is a U-shaped channel steel or a rectangular steel pipe, the hoop comprises two parts with symmetrical structures, the hoop is fixed on the U-shaped cross arm through a bolt C and a plurality of nuts C, and the hoop is fixed on the telegraph pole through a bolt A and a nut A; the number of the three-hole connecting plate, the five-hole connecting plate and the isolating switch is 3, the three-hole connecting plate and the five-hole connecting plate are fixed on the U-shaped cross arm through bolts B and nuts B, the U-shaped cross arm is clamped between the three-hole connecting plate and the five-hole connecting plate, the isolating switch is fixed on the five-hole connecting plate, and a limiting part is arranged on the three-hole connecting plate and used for limiting the relative rotation of the three-hole connecting plate and the U-shaped cross arm; the technical scheme is applied to the line sections with opposite-pulling lines on two sides and higher requirements on strain resistance performance, can completely replace a double-cross-arm structure in the prior art, and effectively solves the technical problem of preventing birds from nesting on cross arms of line towers.
Description
Technical Field
The invention relates to the technical field of overhead transmission lines, in particular to a novel anti-bird-nest cross arm structure.
Background
The cross arm is an important component in a pole tower, is arranged on the upper part of an electric pole and is specially used for installing insulators and hardware fittings so as to support a conducting wire and a lightning conductor and keep a certain safety distance according to regulations.
For a line tower, a phenomenon that birds nest on cross arms is common, particularly on double cross arms of a 10KV line, because the single cross arms are mostly equal angle steel, the birds do not easily nest, and the structure of the double cross arms is very suitable for the development of nesting work of the birds; most of the bird nests are built by using branches, cloth strips, long thatch or waste steel wires, steel bars and other materials with the length of two to thirty centimeters, and after being wetted by rainwater, the suspended bird nest structural parts are easy to cause tripping of distribution lines; when the moist bird droppings fall close to the edge of the insulator, the insulator can be subjected to the action of a high-voltage electric field to flashover, so that the power transmission line is tripped; large birds such as magpies, bird hawks and the like nesting by using conductive materials such as waste iron wires and steel nails, and the metal conductive materials occupy about 70% of the nest structure, so that grounding or short circuit faults are easily caused, line tripping is caused, and serious harm is brought to the safe operation of a power grid particularly in rainy and humid weather.
Each time the transmission line trips, a large area is caused to have power failure and stop production, power supply rush-repair personnel need to repair for several hours to recover power transmission, the workload is large, severe influence is brought to industrial and agricultural production and residential life power consumption, a bird nest becomes a first killer of power supply faults caused by external force, the spring is a peak period when the bird nest is built, in order to prevent accidents caused by the bird nest built on a power line tower, a power supply department arranges personnel to specially carry out line special patrol in 3-5 months every year, the bird nest in one position is just removed soon, the bird nest can be built again in an old place, and the pull saw war that the bird takes up people to disassemble is repeatedly carried out on the same line pole.
Therefore, it is necessary to design a novel anti-bird-nest cross arm structure to replace the double cross arms in the prior art, so as to effectively avoid birds nesting on the tower, reduce the failure rate of the power supply line, and improve the service quality of the power supply.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the prior art and provides a novel anti-bird-nest cross arm structure.
To solve the technical problems, the technical scheme of the invention is as follows: a novel anti-nest cross arm structure comprises a U-shaped cross arm, a hoop, three-hole connecting plates, five-hole connecting plates and an isolating switch; the U-shaped cross arm is a U-shaped channel steel or a rectangular steel pipe, the hoop comprises two parts with symmetrical structures, each part comprises an omega-shaped semicircular clamping plate, each semicircular clamping plate is formed by an arc-shaped plate, a flat plate at a first end and a flat plate at a second end, rib plates A are arranged between the flat plates and the arc-shaped plates and are perpendicular to the flat plates, the number of the rib plates A is 2 and are respectively positioned at the top end and the bottom end of each flat plate, through holes C are formed in the rib plates A, and the flat plates are respectively provided with the through holes A; the bolt C sequentially penetrates through the through holes in the two side plates of the U-shaped cross arm and the through holes C in the hoop, and the hoop is fixed on the U-shaped cross arm through a plurality of nuts C; the bolt A passes through the through holes A of the two symmetrical parts of the anchor ear and fixes the anchor ear on the telegraph pole through the nut A; three holes are even board, five holes are even board and isolator's quantity is 3, even board, five holes are even the board and are fixed on U type cross arm with three holes through bolt B and a plurality of nut B, and U type cross arm presss from both sides and links between the board at three holes even board and five holes, and isolator fixes on five holes even board, and three holes are even to be equipped with the locating part on the board, and the locating part is used for restricting three holes and links the relative rotation of board and U type cross arm.
Furthermore, a rib plate B is arranged between the flat plate at the second end of the semicircular clamping plate of the anchor ear and the arc-shaped plate, and the rib plate B is perpendicular to the flat plate.
Further, three holes are even the board and are even board for flat three holes, and flat three holes are even the board and include the flat board, and the locating part that the board is even to flat three holes is the L type piece of bending of a pair of symmetry of welding on dull and stereotyped lower surface, and the L type piece of bending will U type cross arm card is in the centre, the relative rotation of the even board of restriction flat three holes and U type cross arm.
Further, three holes are connected with the plate for three holes in an arc shape, the three holes in the arc shape are connected with the plate and comprise an arc-shaped plate in an omega shape, the limiting parts of the three holes in the arc shape are n-shaped bending parts welded on the lower surface of the arc-shaped plate, and the n-shaped bending parts are used for clamping the U-shaped cross arm in the middle to limit the relative rotation of the three holes in the arc shape and the U-shaped cross arm.
Furthermore, the utility model also comprises an M-shaped sizing block which is fixed on the U-shaped cross arm through bolts and nuts and is positioned on one side facing the telegraph pole.
The invention can achieve the following beneficial effects: be applied to the both sides circuit to drawing, to the higher line section of strain resistance performance requirement, can replace prior art's two cross arm structures completely, effectively solved the technical problem that prevents the bird from nesting on the cross arm of line shaft tower, avoided the power supply trouble because of the bird nest brings greatly, improved power supply safety factor, reduced power supply department's spring intensity of labour.
Drawings
FIG. 1 is a perspective view showing the structure of example 1 of the present invention;
FIG. 2 is a perspective view showing the structure of embodiment 1 of the present invention;
FIG. 3 is a front view of embodiment 1 of the present invention;
FIG. 4 is a top view of embodiment 1 of the present invention;
FIG. 5 is a perspective view showing the structure of embodiment 2 of the present invention;
FIG. 6 is a perspective view showing the structure of embodiment 2 of the present invention;
fig. 7 is a perspective view of the hoop structure in embodiments 1 and 2 of the present invention;
FIG. 8 is a perspective view showing the structure of a flat plate type three-hole connecting plate in embodiment 1 of the present invention;
FIG. 9 is a perspective view showing the structure of an arc type three-hole connecting plate in embodiment 2 of the present invention;
fig. 10 is a schematic view of the utility pole to which embodiment 2 of the present invention is applied;
in the figure: 1-U-shaped cross arm, 2-anchor ear, 21-semicircular splint, 22-rib plate A, 23-flat plate A, 24-flat plate B, 25-rib plate B, 3-bolt A, 4A-flat plate type three-hole connecting plate, 4A 1-flat plate, 4A 2-L-shaped bending piece, 4B-arc type three-hole connecting plate, 4B 1-arc-shaped plate, 4B 2-U-shaped bending piece, 5-bolt B, 6-five-hole connecting plate, 7-isolating switch, 8-bolt C, 9-M-shaped sizing block and 10-telegraph pole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
A novel anti-bird nest cross arm structure comprises a U-shaped cross arm 1, a hoop 2, an M-shaped sizing block 9, a three-hole connecting plate, a five-hole connecting plate 6 and an isolating switch 7; the U-shaped cross arm 1 is a U-shaped channel steel, and a person skilled in the art can replace the U-shaped channel steel with a rectangular steel pipe according to actual strength requirements;
the anchor ear 2 comprises two parts with symmetrical structures, each part comprises an omega-shaped semicircular clamping plate 21, each semicircular clamping plate 21 is integrally formed by an arc-shaped plate, a flat plate 23 at the first end and a flat plate 24 at the second end, rib plates A22 are arranged between the flat plates 23 and the arc-shaped plates, the rib plates A22 are perpendicular to the flat plates 23, the number of the rib plates A22 is 2, and the rib plates A22 are respectively positioned at the top end and the bottom end of the flat plates 23; through holes C are formed in the rib plates A22, and through holes A are formed in the flat plate 23 and the flat plate 24; a rib plate B25 is arranged between the flat plate 24 and the arc-shaped plate, and the rib plate B25 is vertical to the flat plate 24, so that the deformation resistance of the hoop 2 is enhanced; bolts C8 sequentially penetrate through holes in two side plates of the U-shaped cross arm 1 and through holes C in the anchor ear 2, and the anchor ear 2 is fixed on the U-shaped cross arm 1 through a plurality of nuts C; the bolt A3 passes through the through holes A of the two symmetrical parts of the anchor ear 2, and the anchor ear 2 is fixed on the telegraph pole 10 through the nut A; the M-shaped sizing block 9 is fixed on the U-shaped cross arm 1 through bolts and nuts and located on one side facing the telegraph pole 10, and the M-shaped sizing block 9 is used for preventing slippage of the hoop 2 caused by stress of the U-shaped cross arm 1;
the number of the three-hole connecting plate, the five-hole connecting plate 6 and the isolating switches 7 is 3, the three-hole connecting plate and the five-hole connecting plate 6 are fixed on the U-shaped cross arm 1 through bolts B5 and a plurality of nuts B, the U-shaped cross arm 1 is clamped between the three-hole connecting plate and the five-hole connecting plate 6, the isolating switches 7 are fixed on the five-hole connecting plate 6, limiting pieces are arranged on the three-hole connecting plate, and the limiting pieces are used for limiting the relative rotation of the three-hole connecting plate and the U-shaped cross arm 1; the 3 isolating switches 7 are distributed on two sides of the hoop 2;
the three-hole connecting plate is a flat three-hole connecting plate 4A, the flat three-hole connecting plate 4A comprises a flat plate 4A1, the limiting parts of the flat three-hole connecting plate 4A are a pair of symmetrical L-shaped bending pieces 4A2 welded on the lower surface of the flat plate 4A1, and the U-shaped cross arm 1 is clamped in the middle of the L-shaped bending pieces 4A2 to limit the relative rotation of the flat three-hole connecting plate 4A and the U-shaped cross arm 1.
The advantages of this embodiment: be applied to the both sides circuit to drawing, to the higher line section of strain resistance performance requirement, can replace prior art's two cross arm structures completely, effectively solved the technical problem that prevents the bird from nesting on the cross arm of line shaft tower, avoided the power supply trouble because of the bird nest brings greatly, improved power supply safety factor, reduced power supply department's spring intensity of labour.
Example 2
The three-hole connecting plate is an arc-shaped three-hole connecting plate 4B, the arc-shaped three-hole connecting plate 4B comprises an omega-shaped arc plate 4B1, a limiting part of the arc-shaped three-hole connecting plate 4B is an n-shaped bending part 4B2 welded on the lower surface of the arc plate 4B1, and the U-shaped cross arm 1 is clamped in the middle of the n-shaped bending part 4B2 to limit the relative rotation of the arc-shaped three-hole connecting plate 4B and the U-shaped cross arm 1.
The remaining technical features of this example are the same as those of example 1.
The top surface of the arc-shaped three-hole connecting plate 4B is arc-shaped, so that when a bird stands on the arc-shaped three-hole connecting plate, the stability of the bird is difficult to control, and the nesting difficulty is high, so that the bird can be better prevented from nesting on the U-shaped cross arm 1.
In the description of the present invention, words such as "inner", "outer", "upper", "lower", "front", "rear", etc., indicating orientations or positional relationships, are used for convenience in describing the present invention, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above description is only one embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention.
Claims (5)
1. The utility model provides a novel prevent bird's nest cross arm structure, characterized by: comprises a U-shaped cross arm (1), a hoop (2), a three-hole connecting plate, a five-hole connecting plate (6) and an isolating switch (7); the U-shaped cross arm (1) is a U-shaped channel steel or a rectangular steel pipe, the anchor ear (2) comprises two parts with symmetrical structures, each part comprises an omega-shaped semicircular clamping plate (21), each semicircular clamping plate (21) is integrally formed by an arc-shaped plate, a flat plate A (23) at a first end and a flat plate B (24) at a second end, rib plates A (22) are arranged between the flat plate A (23) and the arc-shaped plate, the rib plates A (22) are perpendicular to the flat plate A (23), the number of the rib plates A (22) is 2, the rib plates A (23) are respectively located at the top end and the bottom end of the flat plate A (23), through holes C are formed in the rib plates A (22), and through holes A are formed in the flat plate A (23) and the flat plate B (24; bolts C (8) sequentially penetrate through holes in two side plates of the U-shaped cross arm (1) and through holes C in the anchor ear (2), and the anchor ear (2) is fixed on the U-shaped cross arm (1) through a plurality of nuts C; the bolt A (3) penetrates through the through holes A of the two symmetrical parts of the anchor ear (2), and the anchor ear (2) is fixed on the telegraph pole (10) through the nut A; three holes are even board, five holes are even board (6) and isolator (7) quantity is 3, link board, five holes even board (6) and fix on U type cross arm (1) with three holes through bolt B (5) and a plurality of nut B, U type cross arm (1) presss from both sides and links between board and five holes even board (6) at three holes, isolator (7) are fixed on five holes are even board (6), three holes are even to be equipped with the locating part on the board, the locating part is used for restricting three holes and links the relative rotation of board and U type cross arm (1).
2. The novel anti-bird nest cross arm structure of claim 1, characterized in that: and rib plates B (25) are arranged between the flat plates B (24) at the second end of the semicircular clamping plate (21) of the hoop (2) and the arc-shaped plates, and the rib plates B (25) are perpendicular to the flat plates B (24).
3. The novel anti-bird nest cross arm structure of claim 1, characterized in that: three hole even boards are flat three hole even board (4A), and flat three hole even board (4A) includes flat board (4A 1), and the locating part of flat three hole even board (4A) is the L type that welds a pair of symmetry on the lower surface of flat board (4A 1) and bends piece (4A 2), and L type is bent piece (4A 2) and will U type cross arm (1) card is in the centre, the relative rotation of restriction flat three hole even board (4A) and U type cross arm (1).
4. The novel anti-bird nest cross arm structure of claim 1, characterized in that: three hole even boards are even board (4B) for three holes of arc, and three holes of arc are even board (4B) including arc (4B 1) of "omega" shape, and the locating part of even board (4B) of three holes of arc is pi shape bending piece (4B 2) of welding on the lower surface of arc (4B 1), and pi shape bending piece (4B 2) will U type cross arm (1) card is in the middle of, the relative rotation of restriction three holes of arc even board (4B) and U type cross arm (1).
5. The novel anti-bird nest cross arm structure of claim 1, characterized in that: the utility model also comprises an M-shaped sizing block (9), wherein the M-shaped sizing block (9) is fixed on the U-shaped cross arm (1) through bolts and nuts and is positioned on one side facing the telegraph pole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921497897.8U CN210806689U (en) | 2019-09-10 | 2019-09-10 | Novel prevent bird's nest cross arm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921497897.8U CN210806689U (en) | 2019-09-10 | 2019-09-10 | Novel prevent bird's nest cross arm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210806689U true CN210806689U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921497897.8U Active CN210806689U (en) | 2019-09-10 | 2019-09-10 | Novel prevent bird's nest cross arm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210806689U (en) |
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- 2019-09-10 CN CN201921497897.8U patent/CN210806689U/en active Active
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