CN102374831A - Safety mechanism of grenade fuse - Google Patents
Safety mechanism of grenade fuse Download PDFInfo
- Publication number
- CN102374831A CN102374831A CN2010102580732A CN201010258073A CN102374831A CN 102374831 A CN102374831 A CN 102374831A CN 2010102580732 A CN2010102580732 A CN 2010102580732A CN 201010258073 A CN201010258073 A CN 201010258073A CN 102374831 A CN102374831 A CN 102374831A
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- bumper
- fuze
- bumper bar
- torsion spring
- sideswipe
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- 238000010304 firing Methods 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention discloses a safety mechanism of a grenade fuse, comprising a fuse body, a flanking body, a trigger cap, a spacing cylinder, a bumper, a telescopic torsional spring, a standstill pin and the like, wherein, the spacing cylinder is connected with the trigger cap by screw thread, spacing steps which are mutually matched are respectively arranged on the spacing cylinder and the fuse body, the fuse body is provided with a step hole, the flanking body is arranged between the trigger cap and the fuse body; the telescopic torsional spring is a spiral spring, the lower end of the telescopic torsional spring is provided with a horizontal arm, the upper end of the telescopic torsional spring is provided with a vertical arm; the horizontal arm is stuck in a groove on the fuse body, the vertical arm is inserted in a straight flute on the bumper; the bumper is divided into two sections, the upper section of the bumper is thick, the upper section of the bumper is provided with the straight flute and a shaped guide groove defined in the drawing, the lower section of the bumper is thin and inserted in the telescopic torsional spring; the standstill pin is arranged in the fuse body, and one end of the fuse body is penetrated into the step hole and arranged in the guide groove; and the bumper can double as a firing pin. The invention has the advantages of simple structure, easy production, low cost, and high reliability, and is suitable for grenades with various types.
Description
Technical field: the present invention relates to a kind of insurance institution of hand grenade fuze, the especially a kind of mechanical insurance institution that can recover insurance function automatically.
Background technology: novel hand grenade fuze requires insurance institution after insurance is disengaged, and in the time of setting, if meet the external force effect, still can recover insurance function.At present, generally adopt dynamo-electric contact switch and circuit to realize this function.This dynamo-electric contact switch and circuit structure are complicated, and be bulky, poor sensitivity, and with high costs.Do not find that as yet useful mechanical mechanism realizes the relevant report of this function.
Summary of the invention: the insurance institution that the object of the present invention is to provide a kind of mechanical a kind of grenade that can recover automatically to insure.
The present invention realizes goal of the invention through following technical proposals: a kind of insurance institution of hand grenade fuze; Comprise fuze body, sideswipe body, triggering cap, position-limiting drum, bumper bar, scalable torsion spring, spline pin; It is characterized in that: position-limiting drum and triggering between the cap through being threaded; The limited step of working in coordination is respectively arranged on position-limiting drum and fuze body, the shoulder hole that supplies to place sideswipe body, bumper bar and scalable torsion spring is arranged in fuze body, between triggering cap and fuze body, sideswipe body is arranged; Sideswipe body is pushed down bumper bar; Scalable torsion spring is a spiral spring, and there is horizontal arm its lower end, and there is vertical arm the upper end, and horizontal arm is stuck in the groove on the fuze body, and vertically arm inserts in the straight trough on the bumper bar; Described bumper bar divides two sections; Epimere is thicker; A straight trough and one group of
shape gathering sill are arranged on it; Hypomere is thinner, is inserted in the scalable torsion spring; In fuze body, be fixed with the spline pin, the end that the spline pin stretches into shoulder hole is placed in the gathering sill.
The present invention is simple in structure, makes easily, and with low cost, reliability is high.
Description of drawings: accompanying drawing 1 is the structural representation after the present invention assembles, and accompanying drawing 2 is sketch mapes of scalable torsion spring, and accompanying drawing 3 is sketch mapes of bumper bar, and accompanying drawing 4 is A-A face cutaway views of bumper bar.
The specific embodiment: shown in accompanying drawing, the present invention includes fuze body (3), sideswipe body (6), trigger cap (5), position-limiting drum (4), bumper bar (2), scalable torsion spring (1), spline pin (7).Through being threaded, fuze body (3) is contained in the position-limiting drum (4), on fuze body (3) and position-limiting drum (4), the limited step of working in coordination is arranged respectively between position-limiting drum (4) and the triggering cap (5).The shoulder hole that supplies to place sideswipe body (6), bumper bar (2), scalable torsion spring (1) is arranged in fuze body (3).Between triggering cap (5) and fuze body (3), sideswipe body (6) is arranged.Sideswipe body (6) is pushed down bumper bar (2).Scalable torsion spring (1) is a spiral spring (shown in an accompanying drawing 2), and there is horizontal arm (8) its lower end, and there is vertical arm (9) upper end.During assembling, scalable torsion spring (1) and is stuck in the groove on the fuze body (3) its horizontal arm (8) from the load hole of shoulder hole top, and vertically arm (9) inserts in the straight trough (10) on the bumper bar (2).Bumper bar (2) divides two sections; Epimere is thicker, and a straight trough (10) and one group of
shape gathering sill (11) are arranged on it; Hypomere is thinner, is inserted in the scalable torsion spring (1).
shape gathering sill (11) is made up of four parts; In the face of drawing; They are that the narrow groove of joint, pitch width groove, lead-over groove and left side groove under the right are gone up in the right successively.The two sections of bumper bar (2) are an integral body, add visual processing technology and method or once success of whole processing in man-hour, or are fixed together after the segmental machining again.Bumper bar (2) but also the double as firing pin use, at this moment, the needle-like that its thinner section should be shown in accompanying drawing 1.In fuze body (3), be fixed with spline pin (7), it stretches into a end in the shoulder hole and reverses certain angle at scalable torsion spring (1) and be placed on gathering sill (11), and within the narrow groove that saves on the right, and spline pin (7) abuts against on the trough rim on this groove left side.Fixedly the mode of spline pin (7) can be multiple modes such as screw thread, riveting, bonding.Certainly; On trigger cap (5), also have the duties safeties; The duties safeties compress and trigger cap (5), sideswipe body (6), bumper bar (2) and scalable torsion spring (1), and make thinner one section of bumper bar (2) stretch out that (shown in accompanying drawing 1) retrains explosion-proof part outside the fuze body (3).During use, remove the duties insurance earlier.Under the effect of scalable torsion spring (1), trigger cap (5), sideswipe body (6), bumper bar (2) with up, a thinner end of bumper bar (2) will all be withdrawn fuze body (3) in this, and insurance is removed.At this moment spline pin (7) is positioned within the sipes that saves down on gathering sill the right.If in the time of setting, there is not the effect of external force; Grenade will be blasted by preset mode; If in the time of setting, meet external force effect (as accidentally drop and land); At sideswipe body (6) with trigger under the effect of cap (5), bumper bar (2) will overcome the elastic force of scalable torsion spring (1) and descending, when walking to spline pin (6) and be in the lead-over groove at
gathering sill middle part; Under the effect of scalable torsion spring (1) moment of torsion; Bumper bar (2) will rotate, and spline pin (7) gets in the left side groove of
gathering sill, after external force disappears; Though there is the elastic force of scalable torsion spring (1) to exist; But under the acting in conjunction on spline pin (7) and lead-over groove base, bumper bar (2) can't be up, and the thinner part in its lower end also can't be withdrawn in the fuze body (3) fully; Thereby keep constraint, reach the purpose of recovering insurance explosion-proof part.It should be noted that the bumper
combination slot can also be made
but then the corresponding rotation scalable torsion spring with the original rotation opposite.When using bumper bar (2) double as firing pin, its operational mode is just the same, just after the duties insurance is removed; Do the time spent in no external force, the time one of setting arrives, detonator will move to firing pin under; Grenade one contacts to earth or collides, and firing pin is with the descending cap sensitive that thrusts.If in the time of setting, meet the effect of external force, in the fuze body, detonator can't not aimed at firing pin, thereby can't be ignited by firing pin yet because firing pin is withdrawn fully, and the self-destroying function of grenade will be realized self-destruction by detonating primer behind certain hour this moment.
Claims (2)
1. the insurance institution of a hand grenade fuze; Comprise fuze body, sideswipe body, triggering cap, position-limiting drum, bumper bar, scalable torsion spring, spline pin; It is characterized in that: position-limiting drum and triggering between the cap through being threaded; The limited step of working in coordination is respectively arranged on position-limiting drum and fuze body, the shoulder hole that supplies to place sideswipe body, bumper bar and scalable torsion spring is arranged in fuze body, between triggering cap and fuze body, sideswipe body is arranged; Sideswipe body is pushed down bumper bar; Scalable torsion spring is a spiral spring, and there is horizontal arm its lower end, and there is vertical arm the upper end, and horizontal arm is stuck in the groove on the fuze body, and vertically arm inserts in the straight trough on the bumper bar; Described bumper bar divides two sections; Epimere is thicker; A straight trough and one group of
shape gathering sill are arranged on it; Hypomere is thinner, is inserted in the scalable torsion spring; In fuze body, be fixed with the spline pin, the end that the spline pin stretches into shoulder hole is placed in the gathering sill.
2. the insurance institution of a kind of hand grenade fuze according to claim 1, it is characterized in that: described bumper bar double as firing pin, its thinner section is like needle-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010258073.2A CN102374831B (en) | 2010-08-11 | 2010-08-11 | Safety mechanism of grenade fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010258073.2A CN102374831B (en) | 2010-08-11 | 2010-08-11 | Safety mechanism of grenade fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102374831A true CN102374831A (en) | 2012-03-14 |
| CN102374831B CN102374831B (en) | 2014-04-02 |
Family
ID=45793784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010258073.2A Active CN102374831B (en) | 2010-08-11 | 2010-08-11 | Safety mechanism of grenade fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102374831B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256870A (en) * | 2013-05-06 | 2013-08-21 | 沈阳理工大学 | Fast triggered fuse of fire extinguishing bomb |
| CN103256869A (en) * | 2013-05-06 | 2013-08-21 | 沈阳理工大学 | Fire self-triggering fire-extinguishing bullet fuze |
| CN103322870A (en) * | 2013-06-28 | 2013-09-25 | 湖北三江航天红林探控有限公司 | Fuse swinging execution mechanism |
| CN104613828A (en) * | 2015-02-05 | 2015-05-13 | 北京理工大学 | Micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and safety method thereof |
| CN104677204A (en) * | 2015-02-13 | 2015-06-03 | 湖北三江航天红林探控有限公司 | Fuze isolation mechanism |
| CN104897017A (en) * | 2015-06-19 | 2015-09-09 | 江南工业集团有限公司 | Shaped-charge destruction device and method for destroying civilian explosive materials |
| CN105758268A (en) * | 2016-03-03 | 2016-07-13 | 湖北三江航天红林探控有限公司 | Detonator security mechanism with self-locking function and detonator |
| CN105783615A (en) * | 2016-03-03 | 2016-07-20 | 湖北三江航天红林探控有限公司 | Fuse security protection mechanism with two-stage shape memory alloy safety and fuse |
| CN106098434A (en) * | 2016-08-02 | 2016-11-09 | 江苏永康机械有限公司 | A kind of band insurance triggers switch |
| CN106098429A (en) * | 2016-08-02 | 2016-11-09 | 江苏永康机械有限公司 | A kind of universal trigger mechanism |
| CN106314812A (en) * | 2016-08-31 | 2017-01-11 | 贵州航天电子科技有限公司 | Time delay releasing structure for inertia safety mechanism |
| CN106364684A (en) * | 2016-08-31 | 2017-02-01 | 贵州航天电子科技有限公司 | Timing sequence fault safety device |
| CN115628652A (en) * | 2022-12-23 | 2023-01-20 | 山西北方机械制造有限责任公司 | Two-way switching type fuse security mechanism based on electric drive |
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|---|---|---|---|---|
| GB837766A (en) * | 1956-11-27 | 1960-06-15 | Karl Henrik Sunden | Firing pin mechanism for hand grenades |
| US5196649A (en) * | 1991-12-04 | 1993-03-23 | Dinova, Inc. | Safety fuze for a hand grenade |
| CN2275228Y (en) * | 1995-12-01 | 1998-02-25 | 国营九三四四厂 | Delay relieving safety device for detonator |
| WO2002103279A1 (en) * | 2001-06-18 | 2002-12-27 | Ruag Munition | Fuse for a hand grenade |
| CN101858714A (en) * | 2009-04-09 | 2010-10-13 | 陈永超 | Exposed universal impact device for fusing |
-
2010
- 2010-08-11 CN CN201010258073.2A patent/CN102374831B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB837766A (en) * | 1956-11-27 | 1960-06-15 | Karl Henrik Sunden | Firing pin mechanism for hand grenades |
| US5196649A (en) * | 1991-12-04 | 1993-03-23 | Dinova, Inc. | Safety fuze for a hand grenade |
| CN2275228Y (en) * | 1995-12-01 | 1998-02-25 | 国营九三四四厂 | Delay relieving safety device for detonator |
| WO2002103279A1 (en) * | 2001-06-18 | 2002-12-27 | Ruag Munition | Fuse for a hand grenade |
| CN101858714A (en) * | 2009-04-09 | 2010-10-13 | 陈永超 | Exposed universal impact device for fusing |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256870A (en) * | 2013-05-06 | 2013-08-21 | 沈阳理工大学 | Fast triggered fuse of fire extinguishing bomb |
| CN103256869A (en) * | 2013-05-06 | 2013-08-21 | 沈阳理工大学 | Fire self-triggering fire-extinguishing bullet fuze |
| CN103256869B (en) * | 2013-05-06 | 2014-09-10 | 沈阳理工大学 | Fire self-triggering fire-extinguishing bullet fuze |
| CN103322870A (en) * | 2013-06-28 | 2013-09-25 | 湖北三江航天红林探控有限公司 | Fuse swinging execution mechanism |
| CN103322870B (en) * | 2013-06-28 | 2014-10-29 | 湖北三江航天红林探控有限公司 | Fuse swinging execution mechanism |
| CN104613828A (en) * | 2015-02-05 | 2015-05-13 | 北京理工大学 | Micro electro mechanical system (MEMS) centrifugal safety mechanism for rotating ammunition and safety method thereof |
| CN104677204A (en) * | 2015-02-13 | 2015-06-03 | 湖北三江航天红林探控有限公司 | Fuze isolation mechanism |
| CN104897017A (en) * | 2015-06-19 | 2015-09-09 | 江南工业集团有限公司 | Shaped-charge destruction device and method for destroying civilian explosive materials |
| CN105758268B (en) * | 2016-03-03 | 2017-06-13 | 湖北三江航天红林探控有限公司 | A kind of fuse security mechanism and fuse with auto-lock function |
| CN105783615A (en) * | 2016-03-03 | 2016-07-20 | 湖北三江航天红林探控有限公司 | Fuse security protection mechanism with two-stage shape memory alloy safety and fuse |
| CN105783615B (en) * | 2016-03-03 | 2017-03-29 | 湖北三江航天红林探控有限公司 | A kind of fuse security mechanism with the insurance of two-stage marmem and fuse |
| CN105758268A (en) * | 2016-03-03 | 2016-07-13 | 湖北三江航天红林探控有限公司 | Detonator security mechanism with self-locking function and detonator |
| CN106098434A (en) * | 2016-08-02 | 2016-11-09 | 江苏永康机械有限公司 | A kind of band insurance triggers switch |
| CN106098429A (en) * | 2016-08-02 | 2016-11-09 | 江苏永康机械有限公司 | A kind of universal trigger mechanism |
| CN106098434B (en) * | 2016-08-02 | 2018-08-28 | 江苏永康机械有限公司 | A kind of band insurance trigger switch |
| CN106314812A (en) * | 2016-08-31 | 2017-01-11 | 贵州航天电子科技有限公司 | Time delay releasing structure for inertia safety mechanism |
| CN106364684A (en) * | 2016-08-31 | 2017-02-01 | 贵州航天电子科技有限公司 | Timing sequence fault safety device |
| CN106314812B (en) * | 2016-08-31 | 2018-08-24 | 贵州航天电子科技有限公司 | A kind of inertia safety mechanism delay relief structure |
| CN106364684B (en) * | 2016-08-31 | 2018-11-02 | 贵州航天电子科技有限公司 | A kind of timing failure safety device |
| CN115628652A (en) * | 2022-12-23 | 2023-01-20 | 山西北方机械制造有限责任公司 | Two-way switching type fuse security mechanism based on electric drive |
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|---|---|
| CN102374831B (en) | 2014-04-02 |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20231229 Address after: No. 1 Changqing Road, Longbo Town, Shuangpai County, Yongzhou City, Hunan Province, 425200 Patentee after: Shuangpai County Vocational and Technical School Address before: 425401, Group 5, Quanjiazhou Village, Wulipai Town, Shuangpai County, Hunan Province Patentee before: Yi Gaochao |
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| TR01 | Transfer of patent right |