SU939769A1

SU939769A1 - Telescopic prop

Info

Publication number: SU939769A1
Application number: SU802977339A
Authority: SU
Inventors: Аркадий Игнатьевич Шоломицкий
Priority date: 1980-08-28
Filing date: 1980-08-28
Publication date: 1982-06-30

Description

(5) ТЕЛЕСКОПИЧЕСКАЯ СТОЙКА(5) TELESCOPIC STAND

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Изобретение относитс к спомогательным опорным устройствам и может быть использовано как в строительстве , так и в горно-добывающей промышленности дл креплени горных выработок .The invention relates to auxiliary support devices and can be used both in construction and in the mining industry for securing mine workings.

Известна стойка, включающа выдвижную часть и замковое устройство 1.. .,The known stand includes a sliding part and a locking device 1 ...,

Недостатком стойки вл етс то, что шаг ее раздвижки определен рассто ни ми между отверсти ми в ее част х, что затрудн ет ее эксплуатацию .The disadvantage of the stand is that its separation step is determined by the distance between the holes in its parts, which makes it difficult to operate.

Наиболее близкой к предлагаемой по технической сущности и достигаемому эффекту вл етс стойка, включающа наружную и внутреннюю трубы, верхний и нижний опорные элементы, замковое устройство и винтовую пару, содержащую гайку и винт, св занный с нижним опорным элементом Г 2.Closest to the proposed technical essence and the achieved effect is a stand comprising an outer and an inner pipe, an upper and lower supporting elements, a locking device and a screw pair comprising a nut and a screw associated with the lower supporting element G 2.

Недостатком такой стойки вл етс неудобство при выборе шага установки за счет винтовой пары.The disadvantage of this rack is the inconvenience when choosing the installation step due to the screw pair.

Цель изобретени - повышение точности шага установки стойки.The purpose of the invention is to improve the accuracy of the installation pitch.

Поставленна цель достигаетс тем, что замковое устройство выполнено в виде набора упорных резьбовых колец, установленных на внутренней трубе с интервалами, равными шагу The goal is achieved by the fact that the locking device is made in the form of a set of stop threaded rings mounted on the inner tube at intervals equal to the pitch.

10 раздвигани стойки и разъемного кольца , установленного с возможностью взаимодействи с нижней торцовой поверхностью каждого упорного кольца.10 extending the stand and the split ring mounted to engage the lower end surface of each retaining ring.

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На (иг. 1 изображена телескопическа стойка, общий вид сбоку в рабочем положении; на фиг. 2 - узел I на фиг, 1 (продольный разрез ;на . фиг. 3 узел II на фиг. 1 (продоль20 ный разрез); на фиг. 4 - узел III на фиг. 1 (продольный разрез).Fig. 2 shows node I in Fig. 1 (longitudinal section; in Fig. 3 node II in Fig. 1 (longitudinal section); Fig. 4 - node III in Fig. 1 (longitudinal section).

Claims

A telescopic rack consists of telescopically assembled pipes: outer 1 and inner 2, which are fixed when the telescopicity changes relative to each other and is locked with a split ring 3 "made in the form of a bottom box (fig. 3) and stop rings 4, which are mounted on the inner pipe 2 with an interval equal to a given telescope moving apart step. An upper support element 5 in the form of a plate (round or rectangular) is fixed to the upper end of the inner pipe 2, and the lower end of the pipe 1 is connected to a jacking device 6 supported on the supporting shoe 7 (lower supporting element). The jacking device is made in the form of a screw pair, the nut 8 of which is rigidly connected to the pipe 1, and the screw 9 passes through the nut 8 and the lower end in the form of a ball stud 10 is connected to the support shoe. The screw 9 has a lock nut 11 and it is connected with the handle 12 to rotate it in the nut 8. The peripheral planes of the supporting elements 5 and 7 are lined with an anti-friction coating 13. In the working position (Fig. 1) the upper and lower legs are also supported 15 bases. The proposed rack works as follows. The support is transferred by two workers to the place of its installation and installed vertically on the base 15. Holding the support in a vertical position, extend the inner tube 2 until the plate 5 stops in the upper base 1 and close the telescope, install the split ring 3 on the upper cut of tube 1 and lower the tube 2 up to the stop of the ring +, into the split ring 3. Then, using the jacking device 6, by rotating the screw 9 in the nut 8, by means of the handle 12 create a thrust force between the upper} k and lower 15 bases with simultaneous alignment of the outer flat awns upper 5 and lower 7 supporting elements due to spherical heel 10 on the screw 9 is pivotally connected to the lower support member (shoe) 7 "Use of the invention allows to simplify the design of racks and reduce the cost of production due to a simpler execution of the lock assembly and reducing of metal rack. Claims of the invention: Telescopic stand, including outer and inner tubes, upper and lower supporting elements, locking device and screw pair, containing a nut and screw associated with the lower supporting element, so as to increase the accuracy of the opening step of the stand , the locking device is made in the form of a set of stop rings mounted on the inner tube at intervals equal to the opening step of the rack, and a split ring mounted to interact with the lower end surface of each thrust ring. - Sources of information taken into account during the examination 1. Author's certificate of the USSR No. 307195, cl. E 21 D 15/4, 1970.

2. Authors certificate of the USSR, cl. E 21 D, 1971 (prototype).

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