RU2690122C2 - Device for leisure engagement landing and laying rock - Google Patents

Abstract

FIELD: military equipment.SUBSTANCE: invention relates to military equipment, to structures of hatches of combat vehicles, tanks and other armored vehicles. Device for lifting and locking a cover of a hatch of a combat vehicle comprises a lifting device in the form of a guide plate, levers and a latch installed on the hatch cover, which is spring-loaded and hingedly fixed on the combat vehicle body, and in the closed position is fixed with the kneading bodies. Guide plate is rigidly fixed on inner side of cover and is equipped with toothed rack interacting with spring-loaded latches, installed in carriage, moving along guide plate and hingedly by means of lever connected to housing of combat vehicle. On the gear rack there is a pressure plaque hinged to the cleats and interacting with the latches. One end of the pressure plate is pivotally connected to the lever attached to the external and internal handles installed on the hatch cover.EFFECT: technical result is reduction of force and safety during opening and closing of heavy hatches of combat vehicles.1 cl, 4 dwg

Description

The invention relates to military equipment, to the designs of the hatches of combat vehicles, tanks and other armored vehicles.

A device is known for lifting and locking the cover of the stern hatch of an infantry combat vehicle BMP-1 (Infantry fighting vehicle BMP-1, technical description, military publishing house of the USSR Ministry of Defense, Moscow - 1972, pp. 48-49).

Aft hatches are used for landing and landing troops on the water. Structurally, all hatches are made the same. Hinges are welded to the roof sheet, onto which hatch covers are attached using hollow axles. In hollow axles pass torsions. One end of the torsion bar is secured in a loop welded to the hatch cover, and the other end is mounted in a bracket welded to the roof of the hull.

The closing of the manhole cover and its sealing are ensured by a screw action lock. To open the hatch cover, pull the lock knob down, then turn the knob counterclockwise. Lift the lid by hand until it is locked in the open position. The lid stops at the moment when the hole in the sector coincides with the stopper, which, under the action of the spring, enters the sector hole. To facilitate the opening of the cover serves torsion.

To close the manhole cover, you need to pull off the stopper handle, as a result of which the cover will drop to an intermediate position. After that, pull the lid by the handle until the lid fits snugly and, pulling the lock handle down, turn it clockwise.

The lack of design - a great effort on the handle at the time of ensuring complete adherence of the cover to the aperture of the hatch.

A device for lifting and locking the hatch cover over the transmission of the T-72 tank (T-72 tank technical description and operating instructions, second book, part one, Moscow. Military publishing house - 1989), selected as a prototype, is known. The hatch cover above the transmission is pivotally connected to the cover above the engine.

Along the perimeter, both covers have rubber sealing gaskets and are attached to the body with bolts and zadraykami. On the right side of the cover above the transmission is its lifting device. The lifting device provides lifting the cover with a force of two people to a fixed position.

The lifting device consists of an external torsion, an emphasis fixed on the guide bar, a lever with a roller, a support arm, a pressure bolt and a latch.

The lever roller, rotating on the axis, when closing or opening the cover over the transmission, rolls along the guide bar. In the open position of the lid, the lifting mechanism is locked by a latch, and it is unraveled by the impact of the rod from below on this latch. To open the cover over the transmission, you must:

- unscrew the bolts securing it to the body;

- unscrew the catch;

- raise the lid until the lift lever is locked with the latch;

- additionally install two rods between the lid and the housing to ensure safe operation in the transmission.

The disadvantages of the cover over the transmission are:

- great effort required to open and close the lid;

- increased risk of injury when performing the operation of opening and closing the cover.

The objective of the proposed invention is to reduce efforts and ensure security when opening and closing heavy hatch covers of combat vehicles.

The task is solved by a device for lifting and locking the hatch of a combat vehicle, containing a lifting device in the form of a guide bar, levers and a latch installed on the hatch cover, which is spring-loaded and pivotally fixed on the body of the combat vehicle, and in the closed position is fixed with backrays. New is that the guide bar is equipped with a toothed rack, interacting with spring-loaded latches installed in the carriage, moving along the guide bar and pivotally using a lever connected to the body of the combat vehicle, a pressure bar mounted on the rack and hinged on the earrings and interacting with the latches , at the same time one end of the pressure plate is pivotally connected to the lever attached to the outer and inner handles mounted on the hatch cover.

The proposed technical solution is illustrated with graphic materials, where in FIG. 1 shows a view from the outside on the open hatch cover of a combat vehicle; FIG. 2 is an inside view of the lid; FIG. 3 is a general view of the device for lifting and locking the cover; FIG. 4 carriage design.

Manhole cover 1 with hinges 2 is hinged to the body 3 of the combat vehicle. In the closed position, the hatch cover 1 is fixed with zadracks 4. On the inside of the hatch cover 1, the guide bar 5 of the locking device 5 with the toothed rack 6 is rigidly fixed. The carriage 7 moves along the guide bar 5 with spring-loaded latches 8 and 16 interacting with the gear bar 6. Carriage 7 through the lever 9 is pivotally connected to the body 3 of the combat vehicle.

On the toothed rack 6 with the help of earrings 10 and 11, the push rod 12 is pivotally mounted. Earring 11 is spring-loaded relative to the toothed rack B. The single end of the push rod 12 is pivotally connected to the lever 13, which is fastened to the outer 14 and inner 15 handles.

The device works as follows.

In the closed position, the hatch cover 1 is fixed by zadraykami 4, the carriage 7 is in the upper position, the latches 8 and 16 are recessed.

To open the hatch cover 1, you need to turn the zadracks 4 and raise the cover, while the carriage 7 will start moving until the latch 8 coincides with the first notch of the toothed rack 6. Under the action of the spring, the latch 8 will engage with the rack 6 and will not let the hatch cover 1 fall. Upon further movement engages the latch 16, while the latch 8 is turned off. The process is repeated until the complete opening of the hatch cover 1.

To close the hatch cover 1, you need to turn the handle 15, while the pressure bar 12 turns off the latches 8 and 16, the cover is freely lowered. To fix the hatch cover 1 in an intermediate position, the handle 15 or 14 (depending on access to them) is rotated in the opposite direction and the pressure bar 12 returns to its original position under the action of a spring.

Thus, the proposed technical solution has reduced the effort and ensure safety when opening and closing heavy hatch covers of combat vehicles.

Claims (1)

Device for lifting and locking the combat vehicle's manhole cover, containing a lifting device in the form of a guide bar, levers and a latch installed on the manhole cover, which is spring-loaded and pivotally fixed on the body of the combat vehicle, and in the closed position it is fixed by zadraykami, characterized in that the guide bar equipped with a rack, interacting with spring-loaded latches installed in the carriage, moving along the guide bar and pivotally using a lever connected to the body of the combat vehicle, on ubchatoy rail mounted trip bar pivotally secured to earrings and interacts with the latch, wherein one end of the push rod being pivotally connected with a lever secured to the inner and outer handles mounted on the hatch cover.

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