CN109668473A - A kind of bolt moves the trigger mechanism of shotgun - Google Patents
A kind of bolt moves the trigger mechanism of shotgun Download PDFInfo
- Publication number
- CN109668473A CN109668473A CN201910098538.3A CN201910098538A CN109668473A CN 109668473 A CN109668473 A CN 109668473A CN 201910098538 A CN201910098538 A CN 201910098538A CN 109668473 A CN109668473 A CN 109668473A
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- Prior art keywords
- machine
- fuse
- hammer
- stops
- trigger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 36
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000009527 percussion Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/02—Block action, i.e. the main breech opening movement being transverse to the barrel axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Fuses (AREA)
Abstract
The present invention provides the trigger mechanisms that a kind of bolt moves shotgun, transmitting machine support including shell structure and the trigger in transmitting machine support, trigger bar, hammer, only safety mechanisms and insurance institution not in place, only safety mechanisms include stopping machine fuse to stop machine fuse with secondary, and only only machine fuse is rotatably mounted in transmitting machine support by only arbor for machine fuse and pair.When cock, only machine fuse drives the secondary machine fuse that stops to be lifted up, and so that the secondary machine fuse that stops is protruded from transmitting pedestal upper end, and then so that automechanism is in blocking always machine frame limit；In cock, pair stops machine fuse, resets under the secondary twisting force for stopping machine spring, is contained in transmitting machine support, guarantees normal transmission；Insurance institution not in place is set simultaneously and guarantees that transmitter is reliable and safety.Structure of the invention is compact, securely and reliably, can effectively ensure that bolt moves shotgun portable security performance.
Description
Technical field
It is specially a kind of with insurance not in place and only machine insurance the present invention relates to a kind of trigger mechanism of small arms technical field
Trigger mechanism.
Background technique
Primer is hit in the work that is generally linked with firing lock of trigger mechanism in firearms, sends out bullet
It is shot out.Trigger mechanism is the mechanism for controlling firearms percussion, realizing the functions such as insurance.Existing bolt moves the automechanism of shotgun
Due to not having kicker, machine frame is moved forward and backward in free state, and easily movement (recoil) causes machine frame backward during portable
Automatic machine is unlocked, and security performance when firearms portable is seriously affected.Existing bolt is moved and is protected in the transmitter mechanism of shotgun without only machine
Dangerous mechanism, thus during portable, bolt moves shotgun machine frame, and easily movement causes automatic machine to be unlocked backward, influences security row.In addition,
Existing bolt, which moves on shotgun, does not have insurance institution not in place, if causing machine frame to push since resistance is excessive or other unexpected factors
After locking lug locking in place, free travel is not covered, that is, is stopped multiple into such as being emitted at this time, will lead to early unlock even
Lock in person even if seriously affects security performance when transmitting to open bore in the case where gun pressure does not drop to safe range.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of trigger mechanism of dynamic shotgun of bolt, is equipped with only machine insurance
Mechanism limits machine frame stopping safety mechanisms to cock, prevents machine frame from moving backward, guarantees that automechanism is in always
Blocking；When percussion, only safety mechanisms release the limit to machine frame, realize that bolt moves shotgun and reliably fires, and then guarantee bolt
Security performance when dynamic shotgun portable.
Technical solution of the present invention is as follows:
A kind of bolt moves the trigger mechanism of shotgun, and transmitting machine support including shell structure is rotationally pacified by trigger shaft
Transmitter is installed in rotation on mounted in the trigger emitted in machine support, the trigger bar being connected with trigger, by hammer shaft
Hammer in bracket, above transmitting machine support front end machine frame, hammer front hingedly fixed by hammer pin, end hook after hammer
Portion is cooperated by resistance iron and trigger bar front end hook portion, and key is:
It further include only safety mechanisms, the only safety mechanisms include one, and only machine fuse and a pair stop machine insurance
Body, only machine fuse and the secondary machine fuse that stops coaxially are installed in rotation in transmitting machine support by only arbor, and hammer, only machine is protected
Dangerous body, the secondary machine fuse that stops are respectively in three parallel rotation in surface, and only machine fuse rotational plane is located at hammer rotation
Between plane and secondary only machine rotational plane, the only machine fuse is equipped with only machine spring in only arbor lower front, and only machine spring is to only
Machine fuse applies upward elastic force, make only machine fuse rotate clockwise, it is described it is secondary stop machine fuse and the only arbor it
Between be equipped with it is secondary stop machine insurance spring, it is torsional spring that pair, which stops machine insurance spring, and the secondary machine fuse that stops of driving rotates counterclockwise；
Only the relatively secondary cylinder plugs stopped one Middle face of machine fuse and be equipped with protrusion of machine fuse, the pair stop machine insurance
The opposite only machine fuse of body is equipped with corresponding arc-shaped limit hole on one side, and the bolt is inserted into the limit hole, only machine fuse
When rotation, arcuately limit hole moves bolt；The only machine fuse has boss, the hammer with respect to the front end of hammer one side
Only machine insures a Middle face and is equipped with corresponding tenon relatively, and when percussion, hammer is rotated around hammer pin, and the tenon acts on described
Boss pressure stops machine fuse, rotates counterclockwise the only machine fuse；Trigger mechanism is in when cock, described to stop
Machine fuse bolt acts on secondary only machine fuse limit hole upper end, projects upwards the secondary machine fuse that stops in transmitting pedestal upper end
Machine frame is limited, when transmitter mechanism fires, the only machine fuse bolt acts on secondary only machine fuse limit hole lower end, secondary
Only the driving of machine insurance spring is secondary stops machine insurance downwards, is contained in the secondary machine fuse that stops downwards in transmitting machine support, releases to machine frame
Limit；
It further, further include insurance institution not in place, the insurance institution not in place includes fuse not in place, less than
Position fuse is rotatably mounted in transmitting bracket by safety axis not in place, and fuse not in place is a lever construction, one
End is overlapped with only machine fuse rear end, and the other end acts on trigger rod on the boss of resistance iron one end side, only machine fuse
When rotating counterclockwise, stirs fuse not in place and rotate clockwise pressure trigger rod.
When cock, only machine insurance spring applies upward elastic force to the insurance of only machine, make only machine fuse turn clockwise
It is dynamic, so that the protrusion of only machine fuse be made to act on the secondary upper end for stopping machine insurance limit hole, and then keep the secondary machine fuse that stops upward,
So that secondary machine fuse front end of stopping protrudes from transmitter pedestal upper end, machine frame is limited, prevents machine frame from moving backward, guaranteed automatic
Mechanism is in blocking always.
When percussion, when hammer is rotated counterclockwise around hammer pin, the tenon in the middle part of hammer acts on corresponding only machine fuse
The boss of front end, pressure stop machine fuse, make only machine fuse rotate counterclockwise, the only protrusion on machine fuse at this time, effect
Machine fuse is not stopped to pair and apply upward power, under the action of pair stops machine insurance spring, it is multiple counterclockwise downwards that pair stops machine insurance spring
Position is contained in transmitting machine support, releases the limit to machine frame, realizes percussion.
Compared with prior art, the invention has the following beneficial effects:
1, guarantee security performance when bolt moves shotgun portable.
2, there is insurance function not in place, securely and reliably.
3, stop machine fuse as fuse driving lever not in place, realize one it is multi-purpose, ensure that only machine insurance with less than for
The timeliness exchanged between insurance reduces processing and assembly difficulty.
4, simple and compact for structure, there is good practicability and generalization.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is external perspective structural representation of the present invention；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is schematic diagram of internal structure of the present invention (hiding transmitting machine support)；
Fig. 4 is the main view of Fig. 3；
Fig. 5 is that the secondary structural schematic diagram for stopping machine fuse is hidden in Fig. 4；
Fig. 6-1 is hammer, only machine fuse, the secondary schematic perspective view for stopping the assembly of machine fuse；
Fig. 6-2 is the left view of Fig. 6-1；
Fig. 7 is hammer, only machine fuse, the secondary explosive view for stopping the assembly of machine fuse；
The structural schematic diagram of machine fuse until Fig. 8；
Fig. 9 is trigger mechanism in the schematic diagram (hiding secondary only machine fuse) to cock；
Figure 10 is also trigger mechanism in the schematic diagram (not hiding only machine fuse) to cock；
Figure 11 is the schematic diagram (hiding secondary only machine fuse) that transmitter mechanism is in cock；
Figure 12 is also the schematic diagram (not hiding secondary only machine fuse) that transmitter mechanism is in cock；
Figure 13 is the structural schematic diagram of insurance institution not in place；
Figure 14 is the structural schematic diagram of trigger bar.
Specific embodiment
The embodiment of the present invention is described in further detail with reference to the accompanying drawing.
With reference to Fig. 1, Fig. 2, Fig. 3, the trigger mechanism that a kind of bolt moves shotgun includes the transmitting machine support 1 of shell structure, by pulling
Machine shaft 2 is installed in rotation on the trigger 3 emitted in machine support, the trigger bar 4 being connected with trigger, by hammer shaft 5
It is installed in rotation on the hammer 6 emitted in machine support, positioned at the machine frame 7 for emitting front end above machine support.6 front of hammer
Hingedly fixed by hammer pin 5,6 rear end hook portion of hammer is cooperated by resistance iron 8 and 4 front end hook portion of trigger bar, as shown in Figure 5.
With reference to Fig. 3 to Fig. 8, only safety mechanisms 9, the only safety mechanisms peace are additionally provided in the transmitting machine support
Mounted in the side of the hammer 6.The only safety mechanisms 9 include one, and only machine fuse 901 and a pair stop machine fuse
902, only machine fuse 901 and the secondary machine fuse 902 that stops coaxially are installed in rotation in transmitting machine support by only arbor 10.It hits
Hammer 6, only machine fuse 901, the secondary machine fuse 902 that stops are respectively in three parallel rotation in surface, as shown in Figure 6, Figure 7, only
901 rotational plane of machine fuse is located between 6 rotational plane of hammer and secondary only 902 rotational plane of machine fuse.
Such as Fig. 7, only relatively secondary 902 1 Middle face of machine fuse that stops of machine fuse 901 is equipped with the cylinder plugs protruded
9011, the secondary opposite only machine fuse of machine fuse that stops is equipped with corresponding arc-shaped limit hole 9021, the bolt 9011 on one side
It is inserted into the arc-shaped limit hole 9021.
Such as Fig. 4, Fig. 5, hammer lower part is equipped with hammer guide rod 12, is equipped with mainspring (not shown) in hammer guide rod 12,
The only machine fuse 901 is equipped with only machine spring 11 in only 10 front of arbor, and only machine spring applies upward bullet to only machine fuse 901
Power makes only 901 clockwise movement of machine fuse, and pair, which stops machine fuse and is only equipped with pair between arbor 10, stops machine insurance spring (in figure
To show), the secondary machine insurance spring that stops is torsional spring, and pair, which stops machine insurance spring, resets the secondary machine fuse 902 that stops counterclockwise.
As shown in Figure 9, Figure 10, bolt moves shotgun and is in cock (only machine spring 11 is not shown in Fig. 9), at this point, only machine
Spring 11 (see Fig. 4) applies upward elastic force to only machine fuse 901, make only machine fuse 901 rotate clockwise, only machine fuse
Bolt 9011 acts on secondary only upper end machine fuse arc-shaped limit hole 9021 (see Fig. 7), turns the secondary machine fuse 902 that stops clockwise
Pair is stopped machine fuse 902 and is lifted up (see Figure 10) by dynamic sub-fraction, and the secondary machine fuse 902 that stops is made to protrude from transmitting bracket
Upper end, and then machine frame 7 is limited, prevent machine frame 7 from moving backward.
As shown in Figure 11, Figure 12, after bolt moves shotgun percussion, hammer 6 is rotated counterclockwise around hammer pin 5, convex in the middle part of hammer
The 601 front end boss 9012 (see Fig. 8) for acting on the opposite hammer one side of only machine fuse 901 are played, pressure stops machine fuse 901,
When only machine fuse 901 rotate counterclockwise sub-fraction, only the bolt 9011 of machine fuse 901 and secondary stop machine fuse at this time
902 9021 upper end of arc-shaped limit hole is detached from, and pair will not be stopped machine fuse 9012 and is lifted up, in the secondary torsion for stopping machine insurance spring
Under power effect, pair, which is stopped after machine fuse 902 rotates counterclockwise certain angle, to be contained in transmitting machine support, releases the limit to machine frame
Position.
With reference to Fig. 5, Figure 13, the present invention is in being additionally provided with insurance institution not in place, the insurance institution not in place in transmitter 1
Including fuse 13 not in place, fuse not in place is rotatably mounted in transmitting bracket 1 by safety axis 14 not in place, less than
Position fuse 13 is a lever construction, and one end is overlapped with only machine fuse rear end, and the other end acts on trigger rod close to resistance iron
On the boss 401 (see Figure 14) of one end side, when only machine fuse rotates counterclockwise, stirs fuse not in place and rotate clockwise
Trigger rod 4 is depressed, and then realizes insurance function not in place.
The course of work of the present invention is as follows:
Such as Fig. 9, Figure 10, bolt moves shotgun and is in when cock, and only machine spring 11 (see Fig. 4) applies only machine fuse 901
Add upward elastic force, make only machine fuse 901 rotate clockwise, only machine fuse bolt 9011, which acts on, secondary stops machine fuse arc
The upper end shape limit hole 9021 (see Fig. 7) makes the secondary machine fuse 902 that stops rotate clockwise sub-fraction, pair is stopped machine fuse 902
It is lifted up (see Figure 10), so that the secondary machine fuse 902 that stops is protruded from transmitting pedestal upper end, machine frame 7 stops machine fuse by pair at this time
902 limits.When pulling back bolt handle, machine frame 7 will stop machine with pair and insure to form an anticlockwise torque, and pair is stopped machine and protected
Dangerous body will not be stopped the pressure of machine insurance spring by pair, guarantee that automatic machine will not unlock when pulling back bolt handle shooting.
Such as Figure 11, Figure 12, Figure 13, after bolt moves the percussion of shotgun transmitter, hammer rotates, and the protrusion on hammer will be protected only machine
Dangerous body 901 is depressed, and only the bolt 9011 on machine fuse and secondary 9021 upper end of machine fuse arc-shaped limit hole of stopping are detached from, and pair stops machine
Fuse 902 under the action of pair stops machine insurance spring, is rotated counterclockwise, is released to machine in the case where no other power effect
The limit of frame 7.Only machine fuse is stirred fuse 13 not in place and is rotated clockwise simultaneously, and trigger bar 4 is depressed, and trigger connects
Bar and resistance iron 8 are freed (Fig. 5), and after pulling machine frame to unlock, machine frame pushes down only machine fuse, and trigger bar will always be in resistance iron
State is freed, realizes insurance function not in place.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that；It still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses, should all cover within the scope of the claims and the description of the invention.
Claims (2)
1. a kind of bolt moves the trigger mechanism of shotgun, transmitting machine support including shell structure is rotatably mounted by trigger shaft
Transmitter branch is installed in rotation in the trigger bar for emitting the trigger in machine support, being connected with trigger, by hammer shaft
Hammer in frame, above transmitting machine support front end machine frame, hammer front hingedly fixed by hammer pin, hammer rear end hook portion
Cooperated by resistance iron and trigger bar front end hook portion, it is characterised in that:
Further include only safety mechanisms, the only safety mechanisms include one only machine fuse and a pair stop machine fuse,
Only machine fuse and the secondary machine fuse that stops coaxially are installed in rotation in transmitting machine support by only arbor, hammer, only machine insurance
Body, the secondary machine fuse that stops are respectively in three parallel rotation in surface, and only machine fuse rotational plane is located at hammer rotation and puts down
Between face and secondary only machine rotational plane, the only machine fuse is equipped with only machine spring in only arbor lower front, and only machine spring is to only machine
Fuse applies upward elastic force, make only machine fuse rotate clockwise, it is described secondary to stop between machine fuse and the only arbor
Stop machine insurance spring equipped with pair, it is torsional spring that pair, which stops machine insurance spring, and the secondary machine fuse that stops of driving rotates counterclockwise；
Only the relatively secondary cylinder plugs stopped one Middle face of machine fuse and be equipped with protrusion of machine fuse, the pair stop machine fuse phase
Corresponding arc-shaped limit hole is equipped on one side to only machine fuse, the bolt is inserted into the limit hole, and only machine fuse rotates
When, arcuately limit hole moves bolt；The only machine fuse has boss with respect to the front end of hammer one side, and the hammer is opposite
Only machine insures a Middle face and is equipped with corresponding tenon, and when percussion, hammer is rotated around hammer pin, and the tenon acts on the boss
Pressure stops machine fuse, rotates counterclockwise the only machine fuse；Trigger mechanism is in when cock, and the only machine is protected
Dangerous body bolt acts on secondary only machine fuse limit hole upper end, projects upwards the secondary machine fuse that stops in transmitting pedestal upper end to machine
Frame limit, when transmitter mechanism fires, the only machine fuse bolt acts on secondary only machine fuse limit hole lower end, and pair stops machine
Insurance spring driving is secondary to stop machine insurance downwards, is contained in the secondary machine fuse that stops downwards in transmitting machine support, releases the limit to machine frame
Position.
2. the trigger mechanism that bolt according to claim 1 moves shotgun, it is characterised in that: it further include insurance institution not in place,
The insurance institution not in place includes fuse not in place, and fuse not in place is rotatably mounted on hair by safety axis not in place
It penetrates in bracket, fuse not in place is a lever construction, and one end is overlapped with only machine fuse rear end, and the other end acts on trigger
Bar when only machine fuse rotates counterclockwise, is stirred fuse not in place and is rotated clockwise on the boss of resistance iron one end side
Depress trigger rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098538.3A CN109668473B (en) | 2019-01-31 | 2019-01-31 | Emission mechanism of bolt-driven shotgun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910098538.3A CN109668473B (en) | 2019-01-31 | 2019-01-31 | Emission mechanism of bolt-driven shotgun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109668473A true CN109668473A (en) | 2019-04-23 |
| CN109668473B CN109668473B (en) | 2023-11-28 |
Family
ID=66150425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910098538.3A Active CN109668473B (en) | 2019-01-31 | 2019-01-31 | Emission mechanism of bolt-driven shotgun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109668473B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923789A (en) * | 2021-01-25 | 2021-06-08 | 沈阳理工大学 | Firearms bore opening and bore closing and bore switching mechanism |
| CN113251854A (en) * | 2021-05-20 | 2021-08-13 | 重庆建设工业(集团)有限责任公司 | Safety mechanism for gun not in place |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH448808A (en) * | 1966-09-15 | 1967-12-15 | Ernst Thaelmann Werk Suhl Veb | Automatic hammer safety for multi-barreled hunting and sporting weapons |
| FR2070572A5 (en) * | 1969-12-09 | 1971-09-10 | Saint Etienne Armes Cycl | |
| US4545143A (en) * | 1983-10-24 | 1985-10-08 | Schultz Mitchell D | Trigger mechanism for double barrel shotgun |
| CN103234384A (en) * | 2013-03-27 | 2013-08-07 | 齐齐哈尔雄鹰警用器材有限公司 | Shotgun novel trigger automatic safety structure |
| CN209485136U (en) * | 2019-01-31 | 2019-10-11 | 重庆建设工业(集团)有限责任公司 | A kind of bolt moves the trigger mechanism of shotgun |
-
2019
- 2019-01-31 CN CN201910098538.3A patent/CN109668473B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH448808A (en) * | 1966-09-15 | 1967-12-15 | Ernst Thaelmann Werk Suhl Veb | Automatic hammer safety for multi-barreled hunting and sporting weapons |
| FR2070572A5 (en) * | 1969-12-09 | 1971-09-10 | Saint Etienne Armes Cycl | |
| US4545143A (en) * | 1983-10-24 | 1985-10-08 | Schultz Mitchell D | Trigger mechanism for double barrel shotgun |
| CN103234384A (en) * | 2013-03-27 | 2013-08-07 | 齐齐哈尔雄鹰警用器材有限公司 | Shotgun novel trigger automatic safety structure |
| CN209485136U (en) * | 2019-01-31 | 2019-10-11 | 重庆建设工业(集团)有限责任公司 | A kind of bolt moves the trigger mechanism of shotgun |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923789A (en) * | 2021-01-25 | 2021-06-08 | 沈阳理工大学 | Firearms bore opening and bore closing and bore switching mechanism |
| CN112923789B (en) * | 2021-01-25 | 2022-09-13 | 沈阳理工大学 | Firearms bore opening and bore closing and bore switching mechanism |
| CN113251854A (en) * | 2021-05-20 | 2021-08-13 | 重庆建设工业(集团)有限责任公司 | Safety mechanism for gun not in place |
| CN113251854B (en) * | 2021-05-20 | 2023-03-14 | 重庆建设工业(集团)有限责任公司 | Safety mechanism for gun not in place |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109668473B (en) | 2023-11-28 |
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