Angle-adjustable anchorage device

Abstract

The invention discloses an angle-adjustable anchorage device. The angle-adjustable anchorage device comprises a combined ring and a fixed anchorage device which are used for supporting, and an inner locking ring and a matched locking ring which are used for connecting and matching, wherein the fixed anchorage device is arranged at one end of the combined ring; a hollow groove is formed in the inner side of the combined ring; the inner locking ring is arranged on the bottom surface of the inner side of the hollow groove; the fixed anchorage device and the inner locking ring are connected and matched through the matched locking ring; and six wedge-shaped holes are formed in the fixed anchorage device in a penetrating manner. According to the angle-adjustable anchorage device disclosed by the invention, an included angle between the combined ring and the fixed anchorage device is utilized so that the angle can be conveniently adjusted, and furthermore, the angle-adjustable anchorage device is adaptive to the connection of a construction surface and an anchor cable, and furthermore, pre-stress is guaranteed; and the device selects the suitable combined ring and the suitable fixed anchorage device according to whole data of a construction field, so that only one format of device needs to be selected in the same field, and furthermore, the utilization efficiency and the economic efficiency of the device are improved.

Description

technical field [0001] The invention relates to the field of anchor cable support, in particular to an angle-adjustable anchor. Background technique [0002] Anchor cable technology is a method of surrounding rock reinforcement introduced into my country in the 1960s. Since the anchor cable rod body adopts flexible and bendable steel strands, it has the advantages of convenient installation, large anchoring depth, high bearing capacity, and active reinforcement of surrounding rock. Advantages, the anchor cable has been widely used in the roof support of coal mine roadway in my country. Anchor cables play an irreplaceable role in soft rock roadway support under complex geological conditions such as large cross-section intersections and fault fracture zones. With the gradual depletion of shallow resources, mine mining continues to develop to the deep, followed by a large number of soft rock problems in deep mines. From 1996 to 1997, my country introduced bolt support technolo...

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Problems solved by technology

[0003] In the current field of anchor cable support, most of them are fixed in the form of a fixed angle, but this adjustment method has a fixed angle, and there may be multiple angles in the same anchor cable support project design scheme, so it will be necessary to separate Customize anchors with various inclination angles. Some anchor cables with inclination angles are relatively small. If you separately produce several anchors with such a small number of inclination angles, it will be more troublesome and difficult to order.

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