CN219061122U - Rotatable and telescopic steel tube pole cross arm - Google Patents

Abstract

The utility model discloses the technical field of power transmission equipment, in particular to a rotatable and telescopic steel pipe rod cross arm, which includes a steel pipe rod, and the steel pipe rod is sequentially set with an annular connection seat and a polygonal base from top to bottom. Two telescopic cross-arm mechanisms are connected symmetrically to the left and right of the ring-shaped connecting seat. They are respectively fixedly connected with the polygonal base through connection support mechanisms. In the utility model, the telescopic cross-arm mechanism can rotate along the steel pipe pole through the ring-shaped connecting seat, so as to meet the requirements of different corners of the transmission line. Through the telescopic cross-arm mechanism and the connection support mechanism, the telescopic cross-arm mechanism can Adjustment to meet different safety distances for transmission lines.

Description

A rotatable and telescopic steel pipe pole cross arm

technical field

The utility model relates to the technical field of power transmission equipment, in particular to a rotatable and telescopic steel pipe pole cross arm.

Background technique

The crossarm is an important part of the pole tower. Its function is to install insulators and fittings to support wires and lightning conductors, and to keep them at a certain safe distance according to regulations. With the rapid development of my country's electric power industry, in recent years, steel pipe poles have become more and more widely used in power transmission lines. Steel pipe poles have advantages such as low price, strong bearing capacity, beautiful appearance, convenient installation, and small footprint Well received by users. Wherein the cross-arm is an important part of the steel pipe pole, but the existing cross-arm is often difficult to disassemble because it is troublesome to maintain after installation, which brings great inconvenience to electric workers. And the existing cross-arm structure is relatively simple, the function is single, the length of the cross-arm cannot be adjusted according to the needs, and different needs can only be met by changing the cross-arm, which greatly increases the installation cost, and the existing cross-arm does not It is convenient to adjust its rotation angle, but the operation is difficult and the risk factor is large, which is not convenient for actual use.

Contents of the invention

The purpose of the utility model is to provide a rotatable and telescopic steel pipe pole cross arm to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A rotatable and telescopic steel pipe rod cross arm, comprising a steel pipe rod, the steel pipe rod is provided with an annular connection seat and a polygonal base in sequence from top to bottom, and the left and right symmetrical connections of the annular connection seat are connected with two telescopic horizontal arms. The telescopic cross-arm mechanism respectively includes a first cross-arm, a second cross-arm and a third cross-arm connected in sequence, and the two telescopic cross-arm mechanisms are respectively fixedly connected to the polygonal base through a connection support mechanism.

As a further improvement of the above technical solution:

One end of the first cross-arm is fixedly connected to the annular connecting seat through bolts, and a first inner tube extends outward from the other end, and one end of the first cross-arm is connected to the second cross-arm through the first inner tube. connected, and fixed by bolts; the other end of the second cross-arm extends outwards with a second inner tube, and the second cross-arm is socketed with the third cross-arm through the second inner tube, and is fixed by bolts.

The annular connecting seat includes an annular upper connecting seat and an annular lower connecting seat, and the annular upper connecting seat and the annular lower connecting seat are equidistantly provided with a plurality of installation holes for connecting to the first cross arm. The handle is provided with a card slot matching the edges of the annular upper connecting seat and the annular lower connecting seat, and a screw hole corresponding to the mounting hole.

The connection support mechanism includes a connection arm and a support arm, one side of the connection arm is provided with a positioning tooth plate, the inside of the support arm is provided with an installation groove for installing the connection arm, and one end of the installation groove is provided with a The groove is equipped with a limit mechanism for fixing and positioning the tooth plate in the groove, so as to realize the flexible insertion of the connecting arm and the supporting arm.

The limit mechanism includes a U-shaped bar, a limit tooth plate and a reverse push spring, the groove is provided with a jack for installing the U-shaped bar, and the two ends of the U-shaped bar are fixed in the groove through the jack. The two ends of the U-shaped rod located in the groove are provided with anti-thrust springs, and the two ends of the U-shaped rod are fixed with limit tooth plates that match the positioning tooth plates, and are located on the U-shaped rod outside the groove. There is also a limit ring.

Compared with the prior art, the beneficial effect of the utility model is: the structure of the utility model adopts the ring-shaped upper connection seat and the ring-shaped lower connection seat, and the telescopic cross-arm mechanism can rotate along the steel pipe rod to realize different transmission lines. According to the requirements of the corner, the telescopic cross-arm mechanism can be firmly connected with the ring-shaped connecting seat through the slot and screw hole provided at the first end of the telescopic cross-arm mechanism, so that the telescopic cross-arm mechanism can be used stably ; When it is necessary to adjust the telescopic cross-arm mechanism, unscrew the bolts on both sides of the telescopic cross-arm mechanism, and pull the second cross-arm outward along the first inner tube to separate the second cross-arm from the first cross-arm , and then pull the third cross-arm outward along the second inner tube to separate the third cross-arm from the second cross-arm, so that the cross-arm can be adjusted telescopically to meet different safety distances for transmission lines. When the second cross arm moves, the second cross arm drives the connecting arm to move, so that the connecting arm moves outward along the installation groove, and at the same time the connecting arm drives the positioning tooth plate to move. After the adjustment is completed, the limit tooth plate in the limit mechanism and The positioning tooth plate is clamped to prevent the connecting arm and the positioning tooth plate from sliding downward, so that the connecting arm and the supporting arm can stably support the telescopic cross-arm mechanism.

Description of drawings

Fig. 1 is the schematic diagram of the front view of the steel pipe bar cross-arm structure of the utility model;

Fig. 2 is a three-dimensional schematic diagram of a steel pipe rod cross-arm structure of the utility model;

Fig. 3 is the exploded view of the steel pipe bar cross-arm structure of the present utility model;

Fig. 4 is the exploded view of the structure of the telescopic cross-arm mechanism of the present utility model;

Fig. 5 is a cross-sectional view of the structure of the connection support mechanism of the present invention.

In the figure: 1, steel pipe rod; 2, annular connecting seat; 21, annular upper connecting seat; 22, annular lower connecting seat; 23, installation hole; 3, telescopic cross arm mechanism; 31, first cross arm; 32, The second cross arm; 33, the third cross arm; 34, the first inner tube; 35, the second inner tube; 36, the slot; 37, the screw hole; 4, the connection support mechanism; 41, the connecting arm; 42, the positioning Tooth plate; 43, support arm; 44, mounting groove; 45, groove; 46, U-shaped bar; 47, limit tooth plate; 48, reverse thrust spring; 49, limit ring; 5, polygonal base.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 and 2, the rotatable and telescopic steel pipe rod cross arm of this embodiment includes a steel pipe rod 1, which is sequentially provided with an annular connecting seat 2, a polygonal base 5, and an annular connecting seat from top to bottom. 2. There are two telescopic cross-arm mechanisms 3 that are symmetrically clamped left and right. The telescopic cross-arm mechanisms 3 respectively include a first cross-arm 31, a second cross-arm 32 and a third cross-arm 33 connected in sequence. The two telescopic cross-arms The mechanism 3 is fixedly connected with the polygonal base 5 through the connecting support mechanism 4 respectively.

As shown in Figures 3 and 4, one end of the first cross arm 31 is fixedly connected to the annular connection seat 2 through bolts, and the other end extends outwards with a first inner tube 34, and one end of the first cross arm 31 passes through the first inner tube 34 is socketed with the second cross-arm 32 and fixed by bolts; the other end of the second cross-arm 32 extends outwards with a second inner tube 35, and the second cross-arm 32 connects with the third cross-arm through the second inner tube 35 33 sockets, and fixed by bolts. When it is necessary to adjust the telescopic cross-arm mechanism 3, the bolts on both sides of the telescopic cross-arm mechanism 3 are unscrewed, and the second cross-arm 32 is pulled outward along the first inner tube 34, so that the second cross-arm 32 is aligned with the first inner tube 34. One cross-arm 31 is separated, and then the third cross-arm 33 is pulled outward along the second inner tube 35, so that the third cross-arm 33 is separated from the second cross-arm 32. After the adjustment is completed, the second cross-arm is bolted 32 and the first inner tube 34 are fixed, and the third cross arm 33 and the second inner tube 35 are fixed, thereby ensuring the stability of the telescopic cross arm mechanism 3, so that the cross arm can realize telescopic adjustment and meet the needs of different transmission lines. safe distance.

The annular connecting seat 2 includes an annular upper connecting seat 21 and an annular lower connecting seat 22. The annular upper connecting seat 21 and the annular lower connecting seat 22 are equidistantly provided with a plurality of mounting holes 23 for connecting the first cross arm 31 respectively. The cross arm 31 is provided with a slot 36 matching the edges of the annular upper connecting seat 21 and the annular lower connecting seat 22 , and a screw hole 37 corresponding to the mounting hole 23 . The telescopic cross-arm mechanism 3 is supported and fixed through the provided annular connection seat 2, and the telescopic cross-arm mechanism 3 can rotate along the steel pipe rod 1 to meet the requirements of different corners of the transmission line. Through the telescopic cross-arm mechanism 3 The card slot 36 provided at one end of the first cross-arm 31 in the middle enables the telescopic cross-arm mechanism 3 to be firmly connected with the annular upper connection seat 21 and the annular lower connection seat 22, so that the telescopic cross-arm mechanism 3 can be stably use.

As shown in Figures 3 and 5, the connection support mechanism 4 includes a connection arm 41 and a support arm 43. One end of the connection arm 41 is provided with a positioning tooth plate 42, and the inside of the support arm 43 is provided with a mounting groove 44 for installing the connection arm 41. One end of the groove 44 is provided with a groove 45 extending toward the direction, and a limit mechanism for fixing and positioning the tooth plate 42 is installed in the groove 45 to realize the flexible insertion of the connecting arm 41 and the supporting arm 43 .

The limit mechanism includes a U-shaped bar 46, a limit tooth plate 47 and a reverse push spring 48. The groove 45 is provided with a jack for installing the U-shaped bar 46, and the two ends of the U-shaped bar 46 are fixed in the groove through the jack. 45, the two ends of the U-shaped bar 46 in the groove 45 are provided with anti-push springs 48, and the two ends of the U-shaped bar 46 are fixed with a limit tooth plate 47 that is compatible with the positioning tooth plate 42, and is located in the concave A limiting ring 49 is also provided on the U-shaped bar 46 outside the groove 45 for adjusting the limiting mechanism. When the second cross arm 32 moves, the second cross arm 32 drives the connecting arm 41 to move obliquely upward, so that the connecting arm 41 moves outward along the installation groove 44, and at the same time the connecting arm 41 drives the positioning tooth plate 42 to move outward, positioning The tooth plate 42 squeezes with the limit tooth plate 47 during the movement, so that the limit tooth plate 47 moves downward along the groove 45, and at the same time the limit tooth plate 47 squeezes the reverse thrust spring 48. After the adjustment is completed, the Under the action of the elastic force of the reverse push spring 48, the limit tooth plate 47 is clamped with the positioning tooth plate 42, preventing the connecting arm 41 and the positioning tooth plate 42 from sliding downward, so that the connecting arm 41 and the supporting arm 43 can support the telescopic cross-arm Mechanism 3 provides stable support.

Working principle: Through the cooperation of the ring-shaped upper base 11 and the ring-shaped lower base 12, the telescopic cross-arm mechanism 3 is supported and fixed, and the telescopic cross-arm mechanism 3 can rotate along the steel pipe pole 1 to achieve different rotation angles of the transmission line. Requirements, through the slot 36 provided at one end of the first cross arm 31 in the telescopic cross arm mechanism 3, the telescopic cross arm mechanism 3 is fixed on the annular upper connecting seat 21 and the annular lower connecting seat 22; When the cross-arm mechanism 3 is used, the second cross-arm 32 is pulled outward along the first inner tube 34 to separate the second cross-arm 32 from the first cross-arm 31, and then the third cross-arm 33 is pulled along the second inner tube. 35 is pulled outward to separate the third cross arm 33 from the second cross arm 32. After the adjustment is completed, the second cross arm 32 and the first inner tube 34 are fixed by bolts, and the third cross arm 33 and the first inner tube 34 are fixed by bolts. The two inner tubes 35 are fixed to realize telescopic adjustment and meet different safety distances for transmission lines. When the second cross arm 32 moves, the second cross arm 32 drives the connecting arm 41 to move obliquely upward, and at the same time the connecting arm 41 drives the positioning The tooth plate 42 moves outward, and the positioning tooth plate 42 is pressed against the limit tooth plate 47 during the movement, so that the limit tooth plate 47 moves downward along the groove 45, and at the same time the limit tooth plate 47 squeezes the reverse push spring 48. After the adjustment is completed, under the action of the elastic force of the reverse push spring 48, the limit tooth plate 47 is engaged with the positioning tooth plate 42 to prevent the connecting arm 41 and the positioning tooth plate 42 from sliding downward, so that the connecting arm 41, the support The arm 43 can stably support the telescopic cross-arm mechanism 3 .

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. A rotatable and telescopic steel pipe pole cross arm, comprising a steel pipe pole (1), is characterized in that: the steel pipe pole (1) is provided with an annular connecting seat (2) and a polygonal base ( 5), the ring-shaped connecting seat (2) is symmetrically clamped with two telescopic cross-arm mechanisms (3), and the telescopic cross-arm mechanisms (3) respectively include the first cross-arm (31), the The second cross arm (32) and the third cross arm (33), the two telescopic cross arm mechanisms (3) are fixedly connected to the polygonal base (5) through the connection support mechanism (4) respectively, One end of the first cross arm (31) is fixedly connected to the annular connecting seat (2) through bolts, and a first inner tube (34) extends outward from the other end, and one end of the first cross arm (31) passes through The first inner tube (34) is socketed with the second cross arm (32) and fixed by bolts; the other end of the second cross arm (32) has a second inner tube (35) extending outward inside, The second cross arm (32) is socketed with the third cross arm (33) through the second inner tube (35) and fixed by bolts. 2. A rotatable and telescopic steel pipe pole cross arm according to claim 1, characterized in that: the annular connecting seat (2) comprises an annular upper connecting seat (21) and an annular lower connecting seat (22), The annular upper connecting seat (21) and the annular lower connecting seat (22) are respectively provided with a plurality of mounting holes (23) for connecting the first cross arm (31). There are engaging slots (36) matching the edges of the annular upper connecting seat (21) and the annular lower connecting seat (22), and screw holes (37) corresponding to the mounting holes (23). 3. A rotatable and telescopic steel pipe rod cross arm according to claim 1, characterized in that: the connecting support mechanism (4) includes a connecting arm (41) and a supporting arm (43), and the connecting arm One side of the (41) is provided with a positioning tooth plate (42), and the inside of the support arm (43) is provided with an installation groove (44) for installing the connecting arm (41), and one end of the installation groove (44) is provided with A groove (45) extending toward the direction, a limit mechanism for fixing and positioning the tooth plate (42) is installed in the groove (45), so as to realize the flexible insertion of the connecting arm (41) and the supporting arm (43). 4. A rotatable and telescopic steel pipe rod cross arm according to claim 3, characterized in that: the limit mechanism includes a U-shaped rod (46), a limit tooth plate (47) and a reverse push spring ( 48), the groove (45) is provided with a jack for installing the U-shaped bar (46), and the two ends of the U-shaped bar (46) are fixed in the groove (45) through the jack, and are located in the groove ( The two ends of the U-shaped bar (46) in 45) are provided with anti-push springs (48), and the two ends of the U-shaped bar (46) are fixed with limit teeth that are compatible with the positioning tooth plate (42). The plate (47) is also provided with a limiting ring (49) on the U-shaped bar (46) outside the groove (45).

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