High-flame-retardant overhead conductor

Abstract

The utility model relates to the technical field of conducting wires, and discloses a high flame-retardant overhead conducting wire, which solves the problems that the flame-retardant effect of the existing overhead conducting wire is poor, the elongation and the compression amount of an adopted arc-shaped spring are relatively limited due to the particularity of the shape and the structure, and the elastic potential energy of the arc-shaped spring cannot meet the requirement. Openings are formed in the middles of the left side and the right side of the mounting box, a tension rotating drum is arranged in the middle of the interior of the mounting box, a wire body is wound on the surface of the tension rotating drum, and a flame-retardant layer made of a polyolefin material is arranged on the surface of the wire body so that the flame-retardant performance of the wire body can be improved; the two ends of the wire body penetrate through the two openings and extend out of the mounting box, rotating rods are fixedly installed at the upper end and the lower end of the tension rotating cylinder, and rotating shaft seats are rotationally installed at the ends, away from each other, of the two rotating rods. The overhead conductor has good flame-retardant capability, and the straight spring is adopted to increase the elongation and the compression amount and improve the elastic potential energy of the overhead conductor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wire, specifically a kind of high flame-retardant overhead conductor. BACKGROUND

[0002] High flame-retardant overhead conductor is a kind of wire with excellent flame-retardant performance, its main feature is that it can block and delay the spread of flame in case of fire, so as to minimize the fire range;High flame-retardant overhead conductor is made of special flame-retardant material, with excellent flame-retardant performance, which can effectively prevent the spread of flame;In case of fire, high flame-retardant overhead conductor can maintain certain structural integrity, reduce the damage of fire to the surrounding environment and equipment, and improve safety;High flame-retardant overhead conductor is suitable for various occasions requiring high flame-retardant performance, such as high-rise buildings, underground buildings, large public places, etc.

[0003] The existing patent (announcement number: CN222271839U) is a kind of high tension overhead conductor of rail transit, the overhead conductor is connected with support, and the tension is relatively constant, the problem of damage to overhead conductor by long-term influence of external wind pressure;But the flame-retardant effect of the overhead conductor is not good, and the arc spring used has relatively limited elongation and compression due to the particularity of shape and structure, and its elastic potential does not meet the demand. CONTENT OF UTILITY MODEL

[0004] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a kind of high flame-retardant overhead conductor, effectively solve the problem that the flame-retardant effect of existing overhead conductor is not good, and the arc spring used has relatively limited elongation and compression due to the particularity of shape and structure, and its elastic potential does not meet the demand.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A kind of high flame-retardant overhead conductor, including installation box, the middle part of the left and right sides of installation box is equipped with opening, the middle part of installation box inside is equipped with tension drum, tension drum surface is wound with conductor body, the surface of conductor body is equipped with the flame-retardant layer made of polyolefin material, to improve the flame-retardant property of conductor body, the both ends of conductor body respectively pass through two openings and extend to the outside of installation box, the upper and lower ends of tension drum are all fixedly installed with rotating rod, the one end of two rotating rods away from each other is all rotatably installed with rotating shaft seat, the side away from each other of two rotating shaft seats is respectively fixedly connected with the inner top and inner bottom of installation box, the surface of two rotating rods is all fixedly installed with transmission gear, the side of two transmission gears is all engagedly connected with transmission rack, the middle part of one side of two transmission racks is all fixedly installed with fixed head, the one end of two fixed heads is all fixedly installed with support arm, the both ends of two support arms are all fixedly installed with limit sliding sleeve, the inside of four limit sliding sleeves is all movably inserted with limit sliding rod, the both ends of four limit sliding rods are all fixedly installed with connecting strip, the end of connecting strip is all fixedly connected with the inside of installation box, the both ends of four limit sliding rods are all set with expansion spring, the both ends of expansion spring are all respectively fixedly connected with limit sliding sleeve and connecting strip.

[0006] Preferably, the top of the installation box is fixedly installed with a top plate, and the bottom of the installation box is fixedly installed with a connecting seat, which is fixedly connected with an external overhead support.

[0007] Preferably, the front and rear sides of the installation box are each provided with two through holes, and the shapes and sizes of the four through holes are adapted to those of the two transmission racks, so that the two transmission racks can pass out of the four through holes when moving.

[0008] Preferably, the upper and lower parts of the interiors of the two openings are each provided with a guide wheel, the middle parts of the four guide wheels are each fixedly installed with a positioning shaft, the both ends of the four positioning shafts are each rotatably installed with a positioning shaft seat, and the sides of the positioning shaft seats away from the positioning shafts are each fixedly connected with the inner walls of the openings.

[0009] Compared with the prior art, the utility model has the beneficial effects that: when the conductor body in suspension is affected by wind pressure and pulled to rotate the tension drum, the tension drum rotates to drive the two rotating rods to rotate along the two rotating shaft seats, the two rotating rods rotate to drive the two transmission racks to move through the two transmission gears, the two transmission racks move to extend outside the installation box through the through holes, and the two transmission racks move to drive the four limit sliding sleeves to slide along the surfaces of the four limit sliding rods through the fixed heads and support arms, and simultaneously extrude the four expansion springs, so that the transmission racks have the effect of elastic reset while ensuring stable movement.

[0010] The tension drum rotates to release the wire body, the wire body moves along the guide wheel when being released, the guide wheel rotates along the positioning shaft and the positioning shaft seat, so that the wire body is guided and moves more smoothly, the wire body is elongated when being released to reduce the influence of wind pressure, so that the wire body is effectively protected; when the wind pressure disappears, the extension spring moves and resets the two transmission racks, so that the tension drum re-winds the wire body; the flame-retardant layer on the surface of the wire body can greatly improve the flame-retardant property; the overhead conductor has good flame-retardant ability, and the straight spring can increase the elongation and compression, and improve the elastic potential energy. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principles of the present application, and do not constitute a limitation of the present application.

[0012] In the drawings:

[0013] Figure 1 High-flame-retardant overhead conductor structure of the present application Figure One ;

[0014] Figure 2 High-flame-retardant overhead conductor structure of the present application Figure Two ;

[0015] Figure 3 Internal structure of the installation box of the present application Figure One ;

[0016] Figure 4 Internal structure of the installation box of the present application Figure Two ;

[0017] Figure 5 Internal structure of the installation box of the present application Figure Three ;

[0018] In the drawings: 1, installation box; 2, top plate; 3, connecting seat; 4, through hole; 5, opening; 6, tension drum; 7, wire body; 8, rotating rod; 9, transmission gear; 10, rotating shaft seat; 11, transmission rack; 12, fixed head; 13, support arm; 14, limiting sliding sleeve; 15, limiting sliding rod; 16, connecting strip; 17, extension spring; 18, guide wheel; 19, positioning shaft; 20, positioning shaft seat. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0020] By Figures 1 to 5 The utility model discloses a mounting box 1, the middle part of the left and right sides of mounting box 1 is equipped with opening 5, the middle part of the inside of mounting box 1 is equipped with tension drum 6, and the surface of tension drum 6 is wound with wire body 7, and the surface of wire body 7 is equipped with the flame -retardant layer made of polyolefin material to improve the flame -retardant property of wire body 7, and the both ends of wire body 7 respectively pass through two openings 5 and extend to the outside of mounting box 1, and the upper and lower ends of tension drum 6 are all fixedly installed with rotating rod 8, and the one end of two rotating rods 8 away from each other is all rotatably installed with rotating shaft seat 10, and the side away from each other of two rotating shaft seats 10 is respectively fixedly connected with the inner top and inner bottom of mounting box 1, and the surface of two rotating rods 8 is all fixedly installed with transmission gear 9.

[0021] The side of two transmission gears 9 is all engaged with transmission rack 11, and the middle part of one side of two transmission racks 11 is all fixedly installed with fixed head 12, and the one end of two fixed heads 12 is all fixedly installed with support arm 13, and the both ends of two support arms 13 are all fixedly installed with limit sliding sleeve 14, and the inside of four limit sliding sleeves 14 is all movably inserted with limit sliding rod 15, and the both ends of four limit sliding rods 15 are all fixedly installed with connecting strip 16, and the end of connecting strip 16 is all fixedly connected with the inside of mounting box 1, and the both ends of the surface of four limit sliding rods 15 are all sleeved with expansion spring 17, and the both ends of expansion spring 17 are all respectively fixedly connected with limit sliding sleeve 14 and connecting strip 16.

[0022] When the wire body 7 in the air is pulled to rotate tension drum 6 under the influence of wind pressure, tension drum 6 rotates and drives two rotating rods 8 to rotate along two rotating shaft seats 10, and when two rotating rods 8 rotate, two transmission gears 9 drive two transmission racks 11 to move, and when two transmission racks 11 move, four limit sliding sleeves 14 are driven to slide along the surface of four limit sliding rods 15 through fixed head 12 and support arm 13, and four expansion springs 17 are simultaneously extruded, so that transmission rack 11 has elastic reset effect while ensuring stable movement.

[0023] When the tension drum 6 rotates, the wire body 7 will be unwound, and when the wire body 7 is unwound, the extension will reduce the influence of wind pressure, thereby effectively protecting the wire body 7; when the wind pressure disappears, the extension spring 17 will move and reset the two transmission racks 11 at the same time, thereby making the tension drum 6 re-wind the wire body 7; the flame-retardant layer on the surface of the wire body 7 can greatly improve its flame-retardant performance; the overhead conductor has good flame-retardant ability, and the straight spring can increase the extension and compression, and improve the elastic potential energy.

[0024] The top of the mounting box 1 is fixedly provided with a top plate 2, and the bottom of the mounting box 1 is fixedly provided with a connecting seat 3, which is fixedly connected with an external overhead support; two through holes 4 are respectively formed in the front and rear sides of the mounting box 1, and the shapes and sizes of the four through holes 4 are adapted to the two transmission racks 11, so that the two transmission racks 11 can pass out of the four through holes 4 when moving;

[0025] The upper and lower parts of the two openings 5 are respectively provided with guide wheels 18, the middle parts of the four guide wheels 18 are fixedly provided with positioning shafts 19, and the two ends of the four positioning shafts 19 are rotatably provided with positioning shaft seats 20, and the sides away from the positioning shafts 19 of the positioning shaft seats 20 are respectively fixedly connected with the inner walls of the openings 5;

[0026] When the wire body 7 is unwound, it will move along the guide wheels 18, so that the guide wheels 18 rotate along the positioning shafts 19 and the positioning shaft seats 20, thereby making the wire body 7 move more smoothly while being guided.

Claims

1. A high flame retardant aerial conductor comprising a mounting box (1), characterized in that: The middle part of left and right sides of the installation box (1) is provided with an opening (5), the middle part of the inside of the installation box (1) is provided with a tension drum (6), the surface of the tension drum (6) is wound with a wire body (7), the surface of the wire body (7) is provided with a flame-retardant layer made of polyolefin material, so as to improve the flame-retardant property of the wire body (7), both ends of the wire body (7) respectively pass through two openings (5) and extend to the outside of the installation box (1), the upper and lower ends of the tension drum (6) are both fixedly installed with a rotating rod (8), the ends of the two rotating rods (8) away from each other are both rotatably installed with a rotating shaft seat (10), the sides of the two rotating shaft seats (10) away from each other are respectively fixedly connected with the inner top and inner bottom of the installation box (1), the surfaces of the two rotating rods (8) are both fixedly installed with a transmission gear (9), one side of the two transmission gears (9) is both meshedly connected with a transmission rack (11), the middle part of one side of the two transmission racks (11) is both fixedly installed with a fixed head (12), one end of the two fixed heads (12) is both fixedly installed with a supporting arm (13), the two ends of the two supporting arms (13) are both fixedly installed with a limiting sliding sleeve (14), the inside of the four limiting sliding sleeves (14) is all movably inserted with a limiting sliding rod (15), the two ends of the four limiting sliding rods (15) are both fixedly installed with a connecting strip (16), the ends of the connecting strips (16) are both fixedly connected with the inside of the installation box (1), the two ends of the surfaces of the four limiting sliding rods (15) are both sleeved with a telescopic spring (17), the two ends of the telescopic spring (17) are both respectively fixedly connected with the limiting sliding sleeve (14) and the connecting strip (16).

2. A high flame retardant aerial conductor as claimed in claim 1, wherein: The top of the installation box (1) is fixedly installed with a top plate (2), the bottom of the installation box (1) is fixedly installed with a connecting seat (3), and the connecting seat (3) is fixedly connected with an external overhead support.

3. A high flame retardant aerial conductor as claimed in claim 1, wherein: The front and rear sides of the installation box (1) are both respectively provided with two through holes (4), the shapes and sizes of the four through holes (4) are matched with the two transmission racks (11), so that the two transmission racks (11) can pass out of the four through holes (4) when moving.

4. The high flame retardant aerial conductor of claim 1, wherein: The upper and lower parts of the inside of the two openings (5) are both respectively provided with a guide wheel (18), the middle part of the four guide wheels (18) is both fixedly installed with a positioning rotating shaft (19), the two ends of the four positioning rotating shafts (19) are both rotatably installed with a positioning shaft seat (20), and the sides of the positioning shaft seats (20) away from the positioning rotating shafts (19) are both respectively fixedly connected with the inner walls of the openings (5).

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