CN104993421A - Movable line laying crossing structure - Google Patents

Abstract

The invention discloses a mobile pay-off spanning frame, which comprises a first main support and a second main support; the first main support is arranged on a first base through a telescopic rod; On the second base; the left end of the first main bracket is provided with a pulley, the right end is provided with a bell mouth, and the top is provided with a guide clamp rod; the left end of the second main bracket is provided with a pointed head and an oblique groove; the first base There is a rocking wheel on the top, and the telescopic rod on the first base is equipped with a pulley; the end of the light rope is tied with a steel ball, and the light rope passes through the rocking wheel, the pulley and the guide clamping rod in turn; Yes, the upper left end of the groove is facing the steel ball, and the lower right end of the groove is provided with a pulley and is positioned on the right side of the telescopic rod of the second main support. The beneficial effects of the invention are: no power outage, no safety measures, no reconstruction, and no large-scale machinery are required in the construction process of the crossed lines, which will greatly save engineering construction time, reduce costs, and improve efficiency.

Description

A mobile pay-off spanning frame

technical field

The invention relates to a wire-paying spanning frame, in particular to a movable wire-laying spanning frame.

Background technique

In the construction of power line engineering, there are a large number of crossing lines, such as communication lines, 0.4kV low-voltage lines, 10kV lines, etc. The construction team often adopts the following methods when facing crossing spans: (1) crane-assisted construction; (2) erecting spanning frame construction; (3) using ladders or other auxiliary devices for construction after power failure and grounding; (4) putting the crossed line on Construction after the ground.

There are deficiencies in the above four construction methods.

(1) It is more convenient for the crane to assist in the construction, but the cost is high and it is severely restricted by the road.

(2) The construction of the spanning frame is very troublesome. Firstly, the personnel must have a certificate, and secondly, it is time-consuming and laborious. When faced with the construction of lines with many crossing spans, the cost is extremely high.

(3) It is also very troublesome to use ladders or other auxiliary devices for construction after power outage and grounding. It is necessary to report the power outage plan and take safety measures after the power outage. After the safety measures are completed, other auxiliary devices such as ladders and brackets are required. Overall it is time consuming. When the cross-span line is a 0.4kV household connection line, due to the need to strip and hang the ground wire, personnel have no ground protection during this period, and there are potential safety hazards in construction.

(4) The way of putting the crossed line on the ground before construction, the crossed line needs to be transformed before construction, and the crossed line must be restored after construction, which is more complicated and expensive.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a reasonable structure, safe and reliable mobile pay-off spanning frame.

This mobile pay-off spanning frame includes a first main support and a second main support; the first main support is set on the first base through a telescopic rod, and the second main support is set on the second base through a telescopic rod Above; the left end of the first main bracket is provided with a pulley, the right end is provided with a bell mouth, and the upper part is provided with a guide clamp rod; the left end of the second main bracket is provided with a pointed head and an oblique groove; The telescopic rod on the first base is equipped with a pulley; the end of the light rope is tied with a steel ball, and the light rope passes through the rocking wheel, pulley and guide rod in turn; The upper left end of the groove is facing the steel ball, and the lower right end of the groove is provided with a pulley and is located on the right side of the telescopic rod of the second main support.

As a preference: diagonal braces are provided at the joints between the first main support and the second main support and the telescopic rod, and discus are provided on the first base and the second base.

The beneficial effects of the present invention are: the manufacturing cost of the device is not high, and the use cost is not high, and compared with the crane, the spanning frame, etc., it saves trouble, time, labor and money. It can realize that there is no need for power outages, safety measures, renovations, and large-scale machinery during the construction process, which will greatly save construction time, reduce costs, and improve efficiency.

Description of drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is the top view of the first main support and the second main support of Fig. 1;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the right view of Fig. 2;

Explanation of reference signs: first base 1, second base 2, shaking wheel 3, discus 4, telescopic rod 5, pulley 6, diagonal brace 7, first main support 8, second main support 9, groove 10, guide Clamp bar 11, pointed head 12, bell mouth 13, light rope 14, steel ball 15.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments. While the invention will be described in conjunction with the preferred embodiments, it will be understood that it is not intended to limit the invention to the described embodiments. On the contrary, the invention is to cover alternatives, modifications and equivalents, which may be included within the scope of the invention as defined by the appended claims.

As shown in Figures 1 to 4, this mobile pay-off spanning frame includes a first main support 8 and a second main support 9; the first main support 8 is arranged on the first base 1 through a telescopic rod 5, The second main support 9 is arranged on the second base 2 through the telescopic rod 5; the left end of the first main support 8 is provided with a pulley 6, the right end is provided with a bell mouth 13, and the top is provided with a guide clamping rod 11; the second main support 9. The left end is provided with pointed head 12, and is provided with oblique groove 10; The first base 1 is provided with rocking wheel 3, and the telescopic rod 5 on the first base 1 is provided with pulley 6; The end of light weight rope 14 is tied with The steel ball 15 and the lightweight rope 14 pass through the rocking wheel 3, the pulley 6 and the guide clamp rod 11 in sequence; The lower end is provided with a pulley 6 and is located on the right side of the telescopic rod 5 of the second main support 9 . Both the first main support 8 and the second main support 9 are provided with diagonal braces 7 at the joints of the telescopic rod 5 , and discus 4 are provided on the first base 1 and the second base 2 .

The key points for implementation are as follows:

(1) Base 1, base 2, shaking wheel 3, discus 4: used to support the whole device. Discus 4 are stackable for fixation and balance. Handle is arranged on rocking wheel 3, is used for retracting lightweight rope 14. The base is connected with 5 bolts of the telescopic rod. The base can be equipped with rollers for movement.

(2) Telescopic rod 5: the specific length is determined according to the needs, and is mainly used for adjusting the height of the device.

(3) Main support 1, main support 2, diagonal brace 7, pointed head 12, bell mouth 13: main support 1 and main support 2 are connected through pointed head 12 and bell mouth 13, and diagonal brace 7 is used for fixing and balancing.

(4) guide clamp bar 11, groove 10, pulley 6, lightweight rope 14, steel ball 15: form the path of wire traction, at first light weight rope 14 falls into groove 10 by steel ball 15 until base 2, then The lead is drawn to the base 1 through the light rope through 14 grooves 10, the lead splint, and the pulley 6.

The precautions when making and using this device are as follows:

(1) The base should be thick to ensure the overall balance.

(2) The telescopic rod 5 needs a certain degree of elasticity, but it cannot be too soft.

(3) The lightweight rope 14 should be light, but the strength should be sufficient.

(4) When conditions permit, the head of the device or even the telescopic rod 5 should preferably be made of insulating material.

(5) The height of the telescopic rod 5 and the length of the main support are determined according to actual needs.

(6) The height of the groove 10 should be matched with the roller in the middle of the guide clamp bar 11.

The steps to use this device are as follows:

(1) First adjust the height of the left and right parts of the device according to the site to ensure a safe distance from the live line.

(2) Slowly move the two sides, so that the pointed head 12 and the bell mouth 13 can be docked smoothly.

(3) Operate the rocking wheel 3 to make the light rope 14 taut. The steel ball 15 is aligned with the groove 10, and then the light rope 14 is slowly released. Under the action of gravity of the steel ball 15, the light rope 14 is pulled from the first main support 8 to the second main support 9.

(4) The lightweight rope 14 is connected with the wire, and the rocking wheel 3 is rotated so that the lightweight rope 14 and the wire are pulled from the second main support 9 to the first main support 8 .

(5) When the wire is tightened, it will automatically slide out from the opening above the guide clamp bar 11.

(6) Slowly remove the two sides, remove and organize the device.

Claims (2)

1. A mobile type pay-off spanning frame is characterized in that: it comprises a first main support (8) and a second main support (9); said first main support (8) is located at the second On a base (1), the second main support (9) is arranged on the second base (2) through a telescopic rod (5); the left end of the first main support (8) is provided with a pulley (6), and the right end is provided with a pulley (6). There is a bell mouth (13), and a guide clamping rod (11) is arranged above; the left end of the second main bracket (9) is provided with a pointed head (12), and an oblique groove (10); the first base (1) Rocking wheel (3) is arranged on the top, and the telescopic link (5) on the first base (1) is provided with pulley (6); The end of light weight rope (14) is tied with steel ball (15), and light weight rope (14 ) pass through the rocking wheel (3), pulley (6) and guide clamp rod (11) in sequence; the bell mouth (13) and the pointed end (12) cooperate with each other and face each other, and the upper left end of the groove (10) faces the steel ball ( 5), the lower right end of the groove is provided with a pulley (6) and is located on the right side of the telescopic rod (5) of the second main bracket (9). 2. The mobile pay-off spanning frame according to claim 1, characterized in that: the connection between the first main support (8) and the second main support (9) and the telescopic rod (5) is provided with a diagonal Support (7), the first base (1) and the second base (2) are all provided with discus (4).