SU744807A1

SU744807A1 - Device for laying cables in a pipe

Info

Publication number: SU744807A1
Application number: SU782681360A
Authority: SU
Inventors: Владимир Петрович Рыдловский
Original assignee: Предприятие П/Я В-2156
Priority date: 1978-11-02
Filing date: 1978-11-02
Publication date: 1980-06-30

Description

(54) УСТРОЙСТВО ДЛЯ ПРОКЛА/ЖИ КАБЕЛЯ (54) DEVICE FOR PROCLE / LIFE CABLE

1one

Изобретение относитс к электромоатажным работам, а конкретно, к устройству дл прокладки кабел в трубе.The invention relates to electro-assembly work, and more specifically to a device for laying a cable in a pipe.

Известно устройство дл прокладки кабел в трубе, состо щее из сосуда, наполненного сжатым воздухом и распыл емым материалом. Сосуд прикреплен между тросом и кабелем.A device for laying a cable in a pipe, consisting of a vessel filled with compressed air and sprayed material, is known. The vessel is attached between the cable and the cable.

Распыление материала производитс при нат гивании троса, прикрепленного к сосуду, путем выпуска воздуха и распыл емого материала при зат жке кабел в трубу.The material is sprayed by pulling the cable attached to the vessel by releasing air and the material being sprayed when the cable is pulled into the pipe.

Этому устройству присущи недостатки, заключающиес в необходимости значительного усили при прокладке кабел в трубе, возникающего в св зи с высоким коэффициентом трени скольжени .This device has the drawbacks of having to apply considerable force when laying the cable in a pipe, due to the high coefficient of friction sliding.

Известно также устройство дл прокладки кабел в трубе, содержащее узлы креплени к тросу и кабелю, пластмассовые шарики, наход щиес в полом корпусе и вдуваемые из последнего в трубу сжатым воздухом. В ТРУБЕIt is also known a device for laying a cable in a pipe, containing attachments to the cable and cable, plastic balls in the hollow body and blown from the latter into the pipe with compressed air. IN THE PIPE

Данное устройство обладает преимуществом , заключающимс в том, что дл уменьшени сопротивлени при прокладке кабел применены тела качени в виде пластмассовых (из полистирола) шариков . Однако и это устройство не обеспечивает достаточного уменьшени усили т жени при прокладке кабел из-за неравномерного распределени пластмассовых шариков по длине трубы при их вду10 вании сжатым воздухом.This device has the advantage that rolling bodies in the form of plastic (polystyrene) balls are used to reduce the resistance when laying the cable. However, this device does not sufficiently reduce the force of the cable when laying the cable due to the uneven distribution of the plastic balls along the length of the pipe when they are blown with compressed air.

Целью изобретени вл етс уменьшение усили Т жени .The aim of the invention is to reduce the stress T of the n.

Поставленна цель достигаетс тем, чта в устройстве дг прокладки кабел The goal is achieved by the fact that in the device dg cable laying

Claims

15 in a pipe with a cable, comprising a housing,; fastener assemblies to the cable and cable, and plastic balls placed in the housing when laying the cable; the housing is crawled out of elastic material with corrugated walls, placed between the attachment points to the cable and cable, with the tops The corrugations are reinforced with a cylindrical spring of extension, and in the cavities the SFRs are filled (perches smaller than the diameter of the ball. The invention is shown in the drawing, which shows a general view of the device with a partial cutout. A device for laying a cable in the tube The unit 1 is attached to the cable 2, the used 3 are attached to the cable 4, the body is made of an elastic material with corrugated walls 5, placed between the nodes 1 and 3. the anchorage is attached to the cable and the cable. 7. Inside the case there are plastic balls - 8, the body stretch limiter is made in the form of a cable 9, fixed between nodes 1 and 3. The passage size of the hole 7 with a compressed body is less than the diameter of the ball 8, why the balls cannot be in the initial position s from the case. Device for the passage of cables in the pipe works as follows. The housing of the device is fastened between the white and the traction cable with fastening elements. When the pull force of the tie exceeds the calculated tensile force of the spring 6, it stretches, increasing the distance between the corrugations and thereby increasing the bore size of the hole. From the holes, plastic balls begin to emerge, which drastically reduce stress. In the case when the resistance during cable tightening is so high that the corrugated case expands to the limiting state, the cable segment 9 inside the case is tensioned and perceives the ultimate load. The invention makes it possible to achieve a reduction in the amplification of force due to the uniform supply of plastic balls. The spring 6 inside the corrugation allows you to adjust the size of the holes in the housing, depending on the force, allows you to control the flow of balls into the pipe when tightening the cables. A cable extending inside the corrugated body ensures the reliability of the structure operation under extreme stretching of the corrugated body. An apparatus for laying a cable in a pipe with a cable, comprising a housing, attachment points to a cable and a cable, and plastic balls placed in the housing, characterized in that, in order to reduce the stress, the housing is made of an elastic material with corrugated walls and placed between the attachment points, in this case, the corrugations are reinforced with a cylindrical tension spring, and in the valleys of the corrugations there are holes with a size smaller than the diameter of the balls.