CN211229749U - Fixing piece for preventing cross arm from falling off - Google Patents
Fixing piece for preventing cross arm from falling off Download PDFInfo
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- CN211229749U CN211229749U CN201922096347.1U CN201922096347U CN211229749U CN 211229749 U CN211229749 U CN 211229749U CN 201922096347 U CN201922096347 U CN 201922096347U CN 211229749 U CN211229749 U CN 211229749U
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Abstract
The utility model relates to a fixing part for preventing cross arms from falling off, which effectively solves the problems that the contact area between the iron accessories for fixing the cross arms and the telegraph poles is small and the cross arms are easy to deform to cause the rotation and falling off of the cross arms when the cross arms are acted by strong wind; the technical scheme includes that the sleeve comprises a sleeve, a plurality of vertical rib plates are evenly distributed on the inner edge surface of the sleeve in the circumferential direction, and an inclined plane is arranged at the lower part of the end surface of the inner side of each rib plate; two vertical first arc-shaped plates with opposite inner arc surfaces are arranged below the sleeve, grooves which correspond to the rib plates one by one and are matched with the inclined surfaces of the rib plates are formed in the outer edge surface of each first arc-shaped plate, and a through groove in the thickness direction of the first arc-shaped plate is formed between each two grooves; when the sleeve and the two first arc-shaped plates are displaced relatively in the vertical direction, the rib plates extrude the bottoms of the corresponding grooves to enable the two first arc-shaped plates to deform inwards to hold the telegraph pole, and the contact area and the friction resistance between the first arc-shaped plates and the telegraph pole are increased; the rotation and the falling off of the cross arm are avoided.
Description
Technical Field
The utility model relates to an electric power iron annex field especially prevents mounting that the cross arm drops.
Background
The cross arm is mainly fixed on the wire pole through the staple bolt, some through of double cross arms are fixed on the wire pole with the threaded rod more, highly little wire pole adopts toper cement pole mostly, the staple bolt of fixed cross arm or the area of contact of threaded rod and wire pole are all very little, when meetting strong wind weather, the cross arm receives the effort of strong wind and can produce the pivoted trend, it can make staple bolt or threaded rod warp to have grown for a long time, the cross arm not only can drag the electric wire in case rotate on the wire pole and still can lead to the cross arm to drop from the wire pole, the cross arm drops and can tear the electric wire on the one hand, on the other hand can injure the pedestrian of wire pole below.
Disclosure of Invention
To the above situation, for overcoming the defect of prior art, the utility model provides a prevent mounting that the cross arm drops, effectual fixed cross arm's of having solved the area of contact of annex and wire pole is little and the cross arm receives the yielding problem that leads to the cross arm to rotate and drop when the cross arm receives the strong wind effect.
The technical scheme for solving the problem is as follows: the sleeve comprises a vertically-placed circular sleeve, a plurality of vertical rib plates are uniformly distributed on the inner edge surface of the sleeve in the circumferential direction, and the lower part of the end surface of the inner side of each rib plate is provided with an inclined plane; two vertical first arc-shaped plates with opposite inner arc surfaces are arranged below the sleeve, grooves which correspond to the rib plates one by one are formed in the outer edge surface of each first arc-shaped plate, the inclined surface of each rib plate is arranged in the corresponding groove, the bottom of each groove is an inclined surface and is matched with the inclined surface of each rib plate, and a through groove in the thickness direction of the first arc-shaped plate is formed between every two grooves; when the sleeve and the two first arc-shaped plates are displaced relatively in the vertical direction, the rib plates extrude the bottoms of the corresponding grooves to enable the two first arc-shaped plates to deform inwards.
The utility model provides a fixed cross arm's indisputable annex and the area of contact of wire pole little and cross arm receive the problem that the mounting is yielding when strong wind acts on and leads to the cross arm to rotate and drop.
Drawings
Fig. 1 is a front view of the present invention when the sleeve is a complete whole.
Fig. 2 is a top view of fig. 1 according to the present invention.
Fig. 3 is a front view of the sleeve of the present invention when two semicircular second arc-shaped plates are fastened to form.
Fig. 4 is a top view of the present invention shown in fig. 3.
Fig. 5 is a sectional view taken along the line a-a in fig. 4 according to the present invention.
Fig. 6 is a state diagram of the utility model in fig. 5, in which the rib plates on the two second arc plates press the two first arc plates to make the inner edge surfaces of the two first arc plates fit with the outer edge surface of the utility pole.
Fig. 7 is a three-dimensional view of a first curved plate of the present invention.
In the above figures, 10 represents a utility pole and 11 represents angle iron.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 to 7, the utility model comprises a vertically placed circular sleeve, a plurality of vertical rib plates 1 are evenly distributed on the inner edge surface of the sleeve, and the lower part of the inner side end surface of each rib plate 1 is provided with an inclined plane; two vertical first arc-shaped plates 2 with opposite inner arc surfaces are arranged below the sleeve, grooves 3 which are in one-to-one correspondence with the rib plates 1 are formed in the outer edge surface of each first arc-shaped plate 2, the inclined surface of each rib plate 1 is arranged in the corresponding groove 3, the bottom of each groove 3 is an inclined surface and is matched with the inclined surface of each rib plate 1, and a through groove 4 in the thickness direction of the first arc-shaped plate 2 is formed between every two grooves 3; when the sleeve and the two first arc-shaped plates 2 are displaced relatively along the vertical direction, the rib plates 1 extrude the bottoms of the corresponding grooves 3 to enable the two first arc-shaped plates 2 to deform inwards.
A first lug plate 5 is fixed at the lower end of each first arc-shaped plate 2 and the corresponding side of the sleeve, an adjusting bolt 6 is arranged on each pair of first lug plates 5, and a first nut 7 is screwed on each bolt; the distance between the two pairs of first lug plates 5 is reduced by screwing the first nut 7, the sleeve and the two first arc-shaped plates 2 are displaced relatively in the vertical direction, at the moment, the inclined surface of the rib plate 1 on the sleeve is matched with the groove 3 on the first arc-shaped plate 2 to extrude the first arc-shaped plate 2 inwards, and the first arc-shaped plate 2 deforms inwards.
A plurality of balls 8 are arranged on the inclined plane of each rib plate 1; when the sleeve and the first arc-shaped plate 2 are displaced relatively, the ball 8 changes the sliding friction between the rib plate 1 and the first arc-shaped plate 2 into rolling friction, and the resistance of screwing the first nut 7 is reduced.
The sleeve is formed by buckling two semicircular second arc-shaped plates 9, the buckling positions of the two second arc-shaped plates 9 are respectively provided with a second lug plate, each pair of second lug plates is provided with a bolt, and each bolt is screwed with a second nut; the two second arc-shaped plates 9 are fastened together by means of bolts and second nuts.
The vertical section of each first arc-shaped plate 2 is in a right trapezoid shape, the outer edge surface of each first arc-shaped plate 2 is an inclined surface which is inclined upwards from outside to inside, each groove 3 is formed downwards from the top end of each first arc-shaped plate 2, each through groove 4 is formed downwards from the top end of each first arc-shaped plate 2, and the lower end surface of each through groove 4 is lower than the lower end surface of each groove 3; the vertical section of the first arc-shaped plate 2 is in a right trapezoid shape, so that the thickness of the upper end of the first arc-shaped plate 2 is smaller than that of the lower end of the first arc-shaped plate 2, the rib plate 1 is more easily extruded and deformed by the first arc-shaped plate 2, and in addition, the through groove 4 is formed in the arc-shaped plate, so that the first arc-shaped plate 2 is also convenient to deform.
Rubber pads are fixed on the two side surfaces of each rib plate 1 and the end surface of the inner side above the inclined surface of the rib plate 1; when the inner edge surface of the first arc-shaped plate 2 is attached to the outer surface of the telegraph pole 10, the rubber pads on the two sides of the rib plate 1 are in contact with the outer edge surface of the first arc-shaped plate 2 near the groove 3, and the rubber pads on the end surface of the inner side above the inclined surface of the rib plate 1 fill the interval between the upper end of the rib plate 1 and the telegraph pole 10, so that the balls 8 are prevented from rusting due to contact with rainwater.
The utility model discloses when concrete implementation: welding an angle iron 11 on the outer edge surface of the sleeve, wherein the angle iron 11 is used for mounting insulators and other hardware fittings; adjusting the adjusting bolts 6 to enable the ball 8 on each rib plate 1 to be in contact with the bottom of the corresponding groove 3 on the first arc-shaped plate 2, and at the moment, the rib plates 1 do not extrude the first arc-shaped plate 2; if the cross arm is installed on the top of the utility pole 10, the sleeve is a complete whole, the sleeve and the two first arc-shaped plates 2 are directly sleeved in the top of the utility pole 10, as shown in fig. 1 and 2, if other cross arms are installed on the top of the utility pole 10, the sleeve needs to be formed by buckling two semicircular second arc-shaped plates 9, the two second arc-shaped plates 9 and the two first arc-shaped plates 2 are buckled on the installation position of the utility pole 10, the two second arc-shaped plates 9 are buckled and preliminarily fixed on the utility pole 10 through bolts and second nuts, and the second nuts are not screwed too tightly at the moment, as long as the first arc-shaped plates 2 and the second arc-shaped plates 9 are ensured not to fall off the utility pole 10, as shown in fig. 3 and 4.
Because the utility pole 10 is conical, the lower ends of the inner edge surfaces of the two first arc-shaped plates 2 are in contact with the outer edge surface of the utility pole 10, and the upper ends are not in contact with the utility pole 10, as shown in fig. 5; the sleeve is pressed downwards by one hand, the first nut 7 on the adjusting bolt 6 is screwed upwards by the other hand, so that the distance between the two pairs of first lug plates 5 is reduced, the sleeve moves downwards along the axis of the sleeve, at the moment, the rib plate 1 moves downwards in the corresponding groove 3 on the first arc-shaped plate 2 through the ball 8 and extrudes the first arc-shaped plate 2 inwards, the first arc-shaped plate 2 deforms inwards, and the plurality of through grooves 4 formed in the upper end of the first arc-shaped plate 2 facilitate the deformation of the first arc-shaped plate 2; when the first nuts 7 are screwed upwards and are not moved, the inner edge surface of the first arc-shaped plate 2 is almost completely attached to the outer edge surface of the telegraph pole 10, as shown in fig. 6, rubber pads on two sides of the rib plate 1 are in contact with the outer edge surface of the first arc-shaped plate 2 near the groove 3, the rubber pads on the inner side end surface above the inclined surface of the rib plate 1 fill the interval between the upper end of the rib plate 1 and the telegraph pole 10, so that the situation that the balls 8 are contacted with rainwater to rust is avoided, and finally the two second nuts are screwed until the screws are not moved, namely the cross arm is installed.
When the first arc-shaped plate 2 deforms inwards to enable the inner edge surface of the first arc-shaped plate to be almost completely attached to the outer edge surface of the telegraph pole 10, the contact area between the first arc-shaped plate 2 and the telegraph pole 10 is increased, namely, the friction resistance is increased, and the cross arm is not prone to falling off downwards; in addition, because the lower end of the rib plate 1 is arranged in the groove 3 on the outer edge surface of the first arc-shaped plate 2, when the angle iron 11 is subjected to the action of strong wind, the angle iron 11 can be prevented from rotating, and the cross arm can be prevented from falling off from the telegraph pole 10.
The utility model has the advantages of showing:
1. when the sleeve and the first arc-shaped plate 2 are vertically displaced relatively, the rib plate 1 is matched with the groove 3 on the outer edge surface of the first arc-shaped plate 2 through the inclined surface, so that the first arc-shaped plate 2 is inwardly deformed and tightly attached to the telegraph pole 10, the contact area and the frictional resistance of the telegraph pole 10 are increased, and the cross arm is not easy to fall off.
2. The lower end of the rib plate 1 is arranged in the groove 3 on the outer edge surface of the first arc-shaped plate 2, so that the phenomenon that the cross arm falls off from the telegraph pole 10 due to the rotation of the angle iron 11 when the angle iron is subjected to strong wind action force is avoided.
The utility model provides a fixed cross arm's indisputable annex and the area of contact of wire pole little and cross arm receive the problem that the mounting is yielding when strong wind acts on and leads to the cross arm to rotate and drop.
Claims (4)
1. The fixing piece for preventing the cross arm from falling off comprises a vertically placed circular sleeve, and is characterized in that a plurality of vertical rib plates (1) are uniformly distributed on the inner edge surface of the sleeve in the circumferential direction, and the lower part of the end surface of the inner side of each rib plate (1) is provided with an inclined plane; two vertical first arc-shaped plates (2) with opposite inner arc surfaces are arranged below the sleeve, grooves (3) which are in one-to-one correspondence with the rib plates (1) are formed in the outer edge surface of each first arc-shaped plate (2), the inclined surface of each rib plate (1) is arranged in the corresponding groove (3), the bottom of each groove (3) is an inclined surface and is matched with the inclined surface of each rib plate (1), and a through groove (4) in the thickness direction of the first arc-shaped plates (2) is formed between every two grooves (3); when the sleeve and the two first arc-shaped plates (2) are displaced relatively in the vertical direction, the rib plates (1) extrude the bottoms of the corresponding grooves (3) to enable the two first arc-shaped plates (2) to deform inwards.
2. A fixing member for preventing a cross arm from falling off as claimed in claim 1, wherein a first ear plate (5) is fixed to the lower end of each first arc-shaped plate (2) and the corresponding side of the sleeve, and each pair of first ear plates (5) is provided with an adjusting bolt (6), and each bolt is screwed with a first nut (7).
3. The fixing member for preventing the cross arm from falling off according to claim 1, wherein a plurality of balls (8) are arranged on the inclined surface of each rib plate (1).
4. The fixing member for preventing the cross arm from falling off according to claim 1, wherein the sleeve is formed by buckling two semicircular second arc-shaped plates (9), the buckling parts of the two second arc-shaped plates (9) are respectively provided with a second lug plate, each pair of second lug plates is provided with a bolt, and a second nut is screwed on each bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096347.1U CN211229749U (en) | 2019-11-29 | 2019-11-29 | Fixing piece for preventing cross arm from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096347.1U CN211229749U (en) | 2019-11-29 | 2019-11-29 | Fixing piece for preventing cross arm from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211229749U true CN211229749U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922096347.1U Active CN211229749U (en) | 2019-11-29 | 2019-11-29 | Fixing piece for preventing cross arm from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211229749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424807A (en) * | 2019-07-15 | 2019-11-08 | 无锡市同腾复合材料有限公司 | A kind of lightweight composite material emergency first-aid repair electric pole |
| CN113236011A (en) * | 2021-06-03 | 2021-08-10 | 河北久金电力器材制造有限公司 | Cross arm convenient to install and method for enabling cross arm to be convenient to install |
| CN115045558A (en) * | 2022-07-22 | 2022-09-13 | 国网河南省电力公司汝阳县供电公司 | Interim wire pole of easy construction installation |
-
2019
- 2019-11-29 CN CN201922096347.1U patent/CN211229749U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110424807A (en) * | 2019-07-15 | 2019-11-08 | 无锡市同腾复合材料有限公司 | A kind of lightweight composite material emergency first-aid repair electric pole |
| CN110424807B (en) * | 2019-07-15 | 2024-07-30 | 无锡市同腾复合材料有限公司 | Portable composite material emergency repair electric pole |
| CN113236011A (en) * | 2021-06-03 | 2021-08-10 | 河北久金电力器材制造有限公司 | Cross arm convenient to install and method for enabling cross arm to be convenient to install |
| CN115045558A (en) * | 2022-07-22 | 2022-09-13 | 国网河南省电力公司汝阳县供电公司 | Interim wire pole of easy construction installation |
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