4 results about "Small arms" patented technology

The invention discloses a pole climbing robot for a wind power tower pole, which is characterized in that the robot mainly comprises a robot body, 4-8 pole climbing mechanisms, a snake-shaped swing arm and a movable studio, wherein the snake-shaped swing arm and the movable studio are mounted on one side of the robot body; the robot body is an annular body formed by combining two semicircular cambered bodies or three equal cambered bodies; the diameter of an internal ring of the circular body is matched with the diameter of the wind power tower pole; the pole climbing mechanisms mainly comprise upper foot wheels, lower foot wheels, connecting arms, driving gears, thrust screw rods, nut gears and supporting seats; the upper foot wheels are connected with the lower foot wheels by the connecting arms through wheel shafts; the connecting arms are connected with the thrust screw rods by connecting pin shafts on the connecting arms, and form movable hinges; the 4-8 pole climbing mechanisms are distributed in the circular robot body uniformly; the snake-shaped swing arm consists of three swing arm parts, namely a large arm, a middle arm and a small arm; and the movable studio comprises two paralleled linear guide rails, a walk driving device and an operation room.

FIELD: fire arms.SUBSTANCE: magazine of a small arms, connected into a block, is made of a box shape, in which the feeder, the magazine spring, the locking plate and the cover are located, on the sides of the body on one side there are trapezoidal grooves, and on the other side there are pins of the corresponding shape and quantity, forming a detachable unit of the dovetail type when connecting the magazines into the block. In the upper part of the side of the body there is a shelf that limits the vertical movement of the attached magazine. The body cover has a groove on one side and a projection on the opposite side for connecting with the groove of the cover of another body; a projection is made on the locking plate adapted for securing it in the hole of the cover.EFFECT: increase in the rate of fire of the weapon by reducing the time required to attach the magazine.4 cl, 8 dwg

FIELD: military construction.SUBSTANCE: invention relates to small capital fortification structures for protecting people and equipment from small arms and shrapnel. The permanent fire point includes four monolithic reinforced concrete walls that form a rectangular hollow structure and a roof slab. The walls are connected to each other and to the roof slab using mounting embedded parts. Three walls comprise loopholes, and the fourth wall comprises an armoured entrance door. The walls have a two-layer reinforcement on the inside and outside with welded reinforcement meshes, which are meshes connected in pairs and turned towards each other, located vertically and offset by 0.5 steps relative to each other. Between the inner and outer sides of the wall reinforcement there is a shortened additional mesh, which is connected to the outer side of the wall reinforcement by a flat frame. The inner and outer sides of the wall reinforcement are also connected to each other by a flat frame. The roof slab has a similar two-layer reinforcement with welded reinforcement mesh on the outside. The first and second layers are meshes connected in pairs and facing each other, located horizontally. On the inside, at the bottom of the lid, the third layer is made in a single layer. The first and second layers are connected to each other by vertical flat frames. The walls and roof slab are made of concrete of at least class B 60 with the addition of fiber.EFFECT: increased strength, durability and reliability through enhanced reinforcement of the structure.17 cl, 6 dwg

The utility model relates to the field of small arms, in particular to mechanisms for securing a magazine in a weapon's lower receiver. The lower receiver (1) comprises a housing (2) with a magazine well (3) formed therein, a means (4) for retaining and securing the front magazine tooth, a means (5) for retaining and securing the rear magazine tooth, and a means (6) for retaining and securing the magazine, located in the magazine well (3) and configured to limit the upward movement of the magazine (9). The technical result is the implementation of the lower receiver's intended purpose, an increase in the degree of fixation and retention of the magazine in all directions of its possible movement, a simplification of the design, and a reduction in the material consumption of the small arms as a whole.