RU2024420C1 - Parachute opening device - Google Patents

Abstract

FIELD: parachute equipment. SUBSTANCE: device has aneroid mechanism 1, clockwork 2, blocking levers 3 positioned in body 4 of device, lock 5, auxiliary mechanism 6 fastened at the bottom side of body 4 and provided with cable 7 located in protective casing 8. Auxiliary mechanism 6 is connected to lock 9 of parachute made in the form of double-cone. Starting mechanism 10 mounted on side surface of body 4 has calibrated lock 11 in the form of non-split collet 12, additional protective casing 13, flexible tie-rod 14, which is secured to pin 15 with its one end and to stop 16 with its other end. Compaction spinneret 17 and non- detachable part 18 of non-split collet 12 are mounted on free end of additional protective casing 13. Detachable part of collet 19 is kinematically connected with flexible tie-rod 14 and halyard 20. As halyard 20 is loaded, clearance between stop 16 and detachable part of collet 19 is taken up. When force applied to halyard 20 acquires critical value of P_кр, non-split collet 12 is opened. Detachable part of collet 19 draws flexible pin 15 through tie-rod 14 from additional protective casing 13, which is fastened through non-detachable part of collet 18 on parachutist shoulder, so that flexible pin 15 is out of engagement with balance wheel flat and stop of clockwork 2; as a result clockwork 2 is driven into operation. Motion is transmitted from clockwork 2 through gear system to blocking levers 3, which open lock of auxiliary mechanism 6 or stop clockwork 2, in case flight altitude exceeds that set by instrument scale. When predetermined flight altitude is attained due to compression of aneroid mechanism 1, levers 3 are released and clockwork 2 operates for remaining 0.8-1.2 sec and switches on lock 5, which releases piston. The piston is movable by compressed springs to pull cable 7 in protective casing 8 and open lock 9 of parachute. EFFECT: increased efficiency and enhanced reliability in operation. 2 cl, 3 dwg

Description

 The invention relates to parachute technology and can be used in devices for opening a parachute pack and for putting parachute rescue systems into operation.

 A device for opening a parachute [1], containing a handle kinematically connected by a cable to the nodes of the parachute system. The main disadvantage of the device is the need for the parachutist to open the canopy of the parachute himself, which can not always happen for various reasons.

 Closest to the proposed technical solution is a device for opening a parachute as a prototype [2], consisting of locking levers, a clock and aneroid mechanism, as well as an exhaust mechanism connected via a cable to the cones of the parachute backpack and a flexible pin mounted on the bolt, which introduces action device for pulling out the shutter.

 The disadvantages of the prototype [2] include pollution of the internal cavity of the device when installing a flexible stud in the shutter of the device. Dust and sand located at the end of the stud, when installed on the device, immediately fall inside the device, disrupting its performance.

 The purpose of the invention is to increase the operational reliability of the device by increasing the tightness of the mechanism for including the device in operation.

 This is achieved by the fact that the device for opening the parachute, containing locking levers located in one case, clock and aneroid mechanisms kinematically connected through a lock with an exhaust mechanism connected by a cable in a protective cover to the stud cones of the parachute backpack, and a flexible pin with a halyard mounted on the shutter is equipped with a triggering mechanism containing a calibrated lock made in the form of a continuous collet, an additional protective casing and a flexible rod attached at one end to the stud and the other to the stop installed with the possibility of axial movement inside the calibrated lock, and located inside the additional protective casing, provided at the free end with an integral part of a continuous collet with a sealing die, and a detachable part of the collet is kinematically connected with a flexible rod and a halyard. In addition, flexible traction can be made in the form of a polymer tube.

 The combination of the listed features of the proposed device can improve operational reliability, namely the tightness of the device, due to the removal of the mechanism of the flexible studs from the zone of greatest dust, i.e., in the belt, where the device is usually mounted, on the shoulders of the paratrooper. The introduction of flexible traction allows you to provide a kinematic connection between the flexible pin of the device and the halyard of the cones of the backpack of the parachute. The introduction of a tared lock makes it possible to ensure guaranteed operation of the device, i.e., to exclude the operation of the device in preparation for a reset. The introduction of a continuous collet tared lock allows for remote separation of the studs from the device. The introduction of an additional protective cover allows you to limit the flexible traction from external influences. The introduction of the stop, installed with the possibility of axial movement of the flexible part, allows you to unload the traction for any deformation of the protective casing.

 Comparative analysis with the prototype [2] shows that the proposed device differs significantly from the known device by the introduction of a remote triggering mechanism in the form of a continuous collet, an additional protective casing and flexible traction, kinematically connecting the flexible pin with the cones of the parachute pack. Thus, the proposed device meets the criteria of the invention of "novelty."

 A comparison of the proposed solutions with other technical solutions shows that devices with separation of control and execution functions are known. For example, a device for opening a parachute, which is equipped with a locking mechanism made in the form of a cylindrical body installed with a needle sliding inside it, equipped with a second shutter. When pulling the studs, the mechanical energy of the needle spring is used to turn the clockwork on.

 In the known device, the control and execution mechanisms, although spaced, are located in one place (case). The axes of the actuating and controlled mechanisms are perpendicular, which is not always acceptable for the layout (it is possible to overwhelm the halyards on the protruding nodes of the device).

 In the proposed device, a different principle of separation of control and execution functions is applied, namely, the remote, i.e., the actuator (pin) and the control (tared lock) are spaced, but are on the same line of movement. This allows you to protect the device from dust, by transferring the transfer) of the control mechanism to any place that is most protected from dust, and without loss of operational parameters.

 Thus, the proposed device meets the criterion of "significant differences".

 In FIG. 1 shows the proposed device; in FIG. 2, 3 - phases of the operation of the remote response mechanism.

 The device contains aneroid 1, clock 2 mechanisms, locking levers 3 located in the housing 4 of the device, the lock 5 of the device, the exhaust mechanism 6, attached to the bottom of the housing 4, connecting the cable 7 in the protective casing 8, attached to the two-cone lock 9 of the parachute. An actuation mechanism 10 is installed on the side surface of the housing 4, comprising a calibrated lock 11 in the form of a continuous collet 12, an additional protective casing 13, a flexible rod 14 attached at one end to the stud 15, and the other to the stop 16. On the free end of the additional protective casing 13 are installed the sealing die 17 and the integral part 18 of the continuous collet 12. The detachable part of the collet 19 is kinematically connected with the flexible rod 14 and the halyard 20.

 The device operates as follows.

When loading the halyard 20, the gap between the emphasis 16 and the detachable part of the collet 19 is selected. Then, when the force on the halyard 20 reaches a critical value P _cr , the continuous collet 12 is opened (undocked). a casing 13, mounted through an integral part of the collet 18 on the shoulder of the paratrooper, a flexible pin 15 from engagement between the flat of the balance and the emphasis of the clock mechanism 2, putting it into operation. The movement from the clock mechanism 2 through the gear system is transmitted to the locking levers 3, which either open the lock 5 of the exhaust mechanism 6, or stop the clock mechanism 2, if the height is greater than the height set on the scale of the device. Upon reaching a predetermined height due to compression of the aneroid mechanism 1, the locking levers 3 are released and the clock mechanism 2 finalizes the remaining ones and turns on the lock 5, which releases the piston. Under the action of the compressed springs, the piston moves, pulls the cable 7 in the protective casing 8 and opens the two-cone lock 9 of the parachute.

 The invention allows, in comparison with the prototype, to increase operational reliability by ensuring the tightness of the internal cavity of the device and the independence of the hitch of the device from the conditions for pulling a flexible stud.

Claims (2)

 1. DEVICE FOR OPENING THE PARASUTE, comprising locking levers located in one housing, clock and aneroid mechanisms kinematically connected through a lock with an exhaust mechanism connected by a cable in a protective cover with studs of cones of a parachute backpack, and a flexible stud with a halyard mounted on a bolt, different the fact that the device is equipped with a triggering mechanism containing a calibrated lock made in the form of a continuous collet consisting of an integral part and a detachable additional protective casing and flexible rods secured at one end to the stud and at the other to a stop mounted axially movable inside the calibrated lock and located inside an additional protective casing provided on the free end with an integral part of the collet and a sealing die, and the detachable part of the collet is kinematically connected with a flexible rod and falom.  2. The device according to claim 1, characterized in that the flexible rod is made in the form of a polymer tube

Images