CN201389676Y

CN201389676Y - Parachute cord cutter

Info

Publication number: CN201389676Y
Application number: CN200920141785U
Authority: CN
Inventors: 金卫平; 魏学忠; 印连荣; 袁有根; 李文
Original assignee: JIANGXI STEEL WIRE FACTORY
Current assignee: Xinyu, Jiangxi, China, Polytron Technologies Inc
Priority date: 2009-02-23
Filing date: 2009-02-23
Publication date: 2010-01-27
Anticipated expiration: 2019-02-23

Abstract

The utility model provides a parachute cord cutter. Air shut-off caps are arranged on the upper end surface and the lower surface of the upper body of a parachute cord cutter on the basis of the prior parachute cord cutter; a delay element is arranged between an output charging position and igniting powder; more than one O-shaped seal rings are arranged between the body of a cutting ring or a single-side knife and the lower body thereof; and a ring pull pin is driven through axial force. The utility model has the effects: 1, the overload resistant capacity is strong; 2, the discreteness in action time can be well controlled; 3, the leak tightness after action is strong; and 4, defect is not easily caused to the ring pull pin part.

Description

Umbrella rope cutter

Technical field:

The utility model relates to a kind of cutter, particularly a kind of umbrella rope cutter that cuts binding parachute binding yarn.

Background technology:

The umbrella rope cutter of standard has two kinds of input forms of mechanical energy and electric energy by the input form branch at present, though the cutter that electric energy is got angry has advance on performance, adopts mechanical ignition form comparatively suitable under passive condition.The umbrella rope cutter of the utility model mechanical energy input form mainly by percussion body, spring, firing pin, draw pin, upper body, output powder charge, extension body, ignition charge, percussion cap, left-hand thread cap, silk fabric pad, down body, cutting ring or single face cutter, hit anvil, hit formation such as anvil block.In the product of having finalized the design, mainly have following defective: 1, anti-overload ability is poor, shows that mainly cutting ring or single face cutter cooperate the corresponding restriction of shortage institute extremely with following body; 2, action time, the edge discreteness was not easy control, mainly showed the extension pipe defer time adjustment difficulty of selecting for use; 3, use preceding sealing can not satisfy the immersion requirement, obviously the sealing design exists not enough; 4, effect back input, output have combustion gas to release, and the phenomenon of pollution or ablation adjacent elements occurs; 5, firing lock retracting spring energy storage flexibility is relatively poor, easily causes firing pin bar hettocyrtosis when mainly showing radially release and increases unlocking resistance.

Summary of the invention:

The purpose of this utility model be at standard machinery get angry the existing deficiency of umbrella rope cutter, and propose that sealing before a kind of anti-overload ability is strong, the edge discreteness distributed, used action time can satisfy that immersion requires, the sealing after the effect still can guarantee kilter and can strengthen the umbrella rope cutter of energy storage release flexibility.

Can realize the purpose of this utility model by following technical proposals, a kind of umbrella rope cutter, comprise percussion body, spring, firing pin, draw pin, upper body, output powder charge, ignition charge, percussion cap, left-hand thread cap, silk fabric pad, down body, cutting ring or single face cutter, hit anvil, hit anvil block, it is characterized in that, upper and lower end face at upper body is provided with the cap of holding one's breath, between output powder charge and ignition charge, be provided with plumbous extension body member, between cutting ring or single face cutter and following body, be provided with more than one O RunddichtringO, draw pin to adopt axial release.

For making firing pin when pulling the trigger percussion cap, not produce the puncture defective, be provided with an energy-absorbing pad between cap and the percussion cap last holding one's breath.

For further improving anti-overload ability, between cutting ring or single face cutter and following body, be provided with keeper.

Effect of the present utility model is: 1, anti-overload ability is strong, and this mainly is provided with O RunddichtringO and keeper between cutting ring or single face cutter and following body, and the keeper anti-overload ability will be much larger than the O RunddichtringO, and it is comparatively remarkable that both can be used in combination resultant effect; 2, action time, the edge discreteness was easy to control, and what this was the utility model use is plumbous extension body member, and plumbous extension body member has good adjustability and selectivity, and this makes that action time, discreteness can be well controlled; 3, use preceding sealing can satisfy the immersion requirement, sealing after the effect guarantees that still input, output do not have combustion gas and release, its key is the upper and lower end employing obturating system at upper body, adopting down O RunddichtringO locking cutting ring method between body and cutting ring, be coated with fluid sealant, lubricant etc. again and can satisfy immersion and effect back input and do not have combustion gas and release requirement; 4, firing lock retracting spring energy storage flexibility is better, and this is to draw pin to adopt axial release form, and the firing pin bar can not produce and radially bend distortion and the increase unlocking resistance.

Below in conjunction with embodiment and accompanying drawing the utility model is further set forth:

Description of drawings:

Accompanying drawing 1 is a structural representation cutaway view of the present utility model.

The specific embodiment:

Referring to accompanying drawing 1, a kind of umbrella rope cutter that cuts binding parachute binding yarn, at percussion pack in the body 1 spring 2, firing pin 3, compression spring 2 also will draw pin 4 skewers to go in the open slot of firing pin 3 afterbodys and combine with the percussion body to constitute firing lock, draw pin 4 for axially extracting; Upper body 5 cover plate 13 of packing into, pack into and export the delay element 11 of packing into after 12 of powder charges are put down, delay element 11 has good adjustability and selectivity, the action time discreteness is well controlled, the flat silk fabric pad 10 of packing into of opening of load point gunpowder point on delay element 11, be pressed into left-hand thread cap 9, reinstall percussion cap 8, buckle the cap 6 of holding one's breath putting a pad 7 in the percussion cap 8, junction coating silica gel or resin-sealed, upper body 5 lower ends are buckled down and are held one's breath cap 14 and be coated with silicone grease or other lubricants constitute firing devices, on hold one's breath the setting of the cap 6 and the cap 14 of holding one's breath down can improve umbrella rope cutter significantly and use before and the sealing after the effect; Following body 15 cutting ring 16 (or single face cutter) of packing into, be provided with an O RunddichtringO 17 and keeper 18 between cutting ring 16 and the following body 15, keeper 18 is to be inserted in the cannelure of cutting ring 16, the position of inserting keepers 18 at following body 15 is provided with the major thread hole, keeper 18 can be pressed the tight cutting ring of screw lock by pounding into lead stifled 19 or being screwed in the major thread hole, between cutting ring 16 and following body 15, two O RunddichtringOs 17 can be set also, but its anti-overload ability will be lower than the combination of an O RunddichtringO 17 and keeper 18, behind the locking cutting ring 16, pack in proper order again and hit anvil 20, hit anvil block 21, constitute the terminal cutting mechanism.

Claims

1, a kind of umbrella rope cutter, comprise percussion body, spring, firing pin, draw pin, upper body, output powder charge, ignition charge, percussion cap, left-hand thread cap, silk fabric pad, down body, cutting ring or single face cutter, hit anvil, hit anvil block, it is characterized in that, upper and lower end face at upper body is provided with the cap of holding one's breath, between output powder charge and ignition charge, be provided with plumbous delay element, between cutting ring or single face cutter and following body, be provided with more than one O RunddichtringO, draw pin to adopt axial release.

2, umbrella rope cutter according to claim 1 is characterized in that, is provided with an energy-absorbing pad between cap and the percussion cap last holding one's breath.

3, umbrella rope cutter according to claim 1 and 2 is characterized in that, is provided with keeper between cutting ring or single face cutter and following body.