CN208818067U - Ammunition counting display device in a kind of rifle - Google Patents
Ammunition counting display device in a kind of rifle Download PDFInfo
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- CN208818067U CN208818067U CN201820758492.4U CN201820758492U CN208818067U CN 208818067 U CN208818067 U CN 208818067U CN 201820758492 U CN201820758492 U CN 201820758492U CN 208818067 U CN208818067 U CN 208818067U
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Abstract
The utility model relates to bullet counting display device technical fields in rifle, disclose ammunition counting display device in a kind of rifle, it include: magazine contact socket, wire guide plate, the mating magazine and card adapter plate of connection are matched with rifle, the top of rifle is arranged in card adapter plate, card adapter plate is equipped with power module, single-chip microcontroller, fixed value resistance, voltmeter, control button component and LCD display, magazine contact socket pushes away diving board with the conduction in mating magazine and series resistance item matches connection, magazine contact socket is connect by wire guide plate with fixed value resistance, fixed value resistance both ends connect voltmeter, voltmeter is connect with single-chip microcontroller, LCD display is located at the front of control button component, fixed value resistance, single-chip microcontroller and LCD display are connect with power module respectively, LCD display passes through control button component and single-chip microcontroller and power module respectively It connecting, ammunition counting display device in this rifle, detection accuracy is high, and it is easy to operate, it is small in size, it is light-weight.
Description
Technical field
The utility model relates to ammunitions to count field of display technology, in particular to ammunition counting display device in a kind of rifle.
Background technique
Rifle and ammunition are the second life of soldier, it is known that also how many ammunition is won the victory on battlefield in the weapon of oneself
One of key.Especially on modern battlefield, digitlization not only accelerates war rhythm, also improves weapon effectiveness.Before
Ammunition counter, as the turntable of dpm machine gun is excessively huge and heavy；The transparent magazine of Ma Gaipu still to allow the visual field of shooter from
It opens and takes aim at tool, go on magazine.
Know also how many bullet is particularly significant in oneself rifle, this not only decides whether to change magazine, goes back shadow on battlefield
Ring this output for regulating and controlling firepower in next step.At present on the rifle of no any device, soldier can only by perceive rifle weight come
Judge remaining bullet number, this is not very accurate, and old soldier can only also control precision at 3-5 or so, however a more bullet foot
To kill the foeman to come up, a few bullet will change magazine ahead of time in fighting, and stop firepower output more earlyly than enemy, allow me
Necromancer soldier loses one's life.And it is unpractical for counting shot note to get out ammunition number in the full automatic weapon epoch.People are also by device
The some schemes solved, such as the turntable of dpm machine gun, the transparent magazine of Ma Gaipu.But both of which has very big defect, the former is heavy
Huge, the latter soldier needs sight removing sighting device.
These all will not adapt to Times ' Demand, therefore novel bullet casket ammunition digital display module is come into being.
Utility model content
The utility model provides ammunition counting display device in a kind of rifle, can solve the above problem in the prior art.
Ammunition counting display device in a kind of rifle, comprising: magazine contact socket, wire guide plate, matched with rifle connect it is mating
The top of rifle is arranged in magazine and card adapter plate, card adapter plate, and card adapter plate is equipped with power module, single-chip microcontroller, fixed value resistance, voltage
Table, control button component and LCD display, magazine contact socket push away diving board and series resistance item with the conduction in mating magazine
With connection, magazine contact socket is connect by wire guide plate with fixed value resistance, and fixed value resistance both ends connect voltmeter, voltmeter and list
The connection of piece machine, LCD display are located at the front of control button component, fixed value resistance, single-chip microcontroller and LCD display respectively with electricity
Source module connection, LCD display pass through control button component respectively and connect with single-chip microcontroller and power module.
The mating magazine includes magazine shell, and the intracorporal bottom of magazine shell is equipped with spring bottom plate, and spring bottom plate passes through the
One spring is connect with diving board is pushed away, and magazine case inside face is symmetrically arranged with the first ball orbit and the second ball rail along its length
Road, the bottom margin for pushing away diving board are equipped with the first conduction for corresponding and being slidably connected with the first ball orbit and the second ball orbit
Ball and the second conductive ball, the first conductive ball and the second conductive ball pass through conductive anti-seismic spring connection, the first ball rail
The resistor stripe being composed in series by multiple resistance is equipped in road from bottom to top, is equipped with conductive bar from bottom to top in the second ball orbit；
The medial surface of the magazine contact socket is equipped with the first magazine contact head and the second magazine contact head, magazine contact
It is additionally provided on socket and is connect with the matched tenon socket of rifle, the first magazine contact head with resistor stripe upper end, the second magazine contact head
Connect with conductive bar, the lower end of wire guide plate is connect with the first magazine contact head and the second magazine contact head respectively, wire guide plate it is upper
End connection fixed value resistance.
Magazine case inside face is symmetrically additionally provided with third ball orbit and the 4th ball orbit along its length, pushes away bullet
The bottom of plate, which is equipped with, corresponds the third ball and the 4th ball being slidably connected with third ball orbit and the 4th ball orbit,
Third ball and the 4th ball are connected by second spring.
The side of the control button component be equipped with retractable button cover, the button assembly include: switch control knob,
Advance control button retreats control button and confirming button.
Described first conductive ball, the second conductive ball, third ball and the 4th ball are copper bead.
The mating magazine, magazine contact socket, wire guide plate, card adapter plate, LCD display switch control knob, control of advancing
Button, retrogressing control button and confirming button processed are made of insulating water-proof anti-seismic material.
Further include optical foresight module in the card adapter plate, optical foresight module respectively with power module and single-chip microcontroller
Connection.
Wireless communication module is additionally provided in the card adapter plate, wireless communication module connects with power module and single-chip microcontroller respectively
It connects.
Compared with prior art, the utility model has the beneficial effects that:
The utility model is by being arranged resistor stripe and conductive bar in magazine, so that magazine becomes variable with the percussion of ammunition
Resistance, by carrying out voltage detecting to fixed value resistance, the variation of resistance in Lai Tixian series loop, to reflect ammunition number in rifle
Quantity, the utility model have it is small in size, it is light-weight, it is at low cost, be easy maintenance, count that accuracy is high, and durable, aiming is penetrated
The feature of ammunition number is grasped when hitting at any time, so that soldier can see the quantity of ammunition in rifle while aiming at, helps soldier
Existence, annihilates the enemy, wins the victory.
Detailed description of the invention
Fig. 1 is a kind of principle schematic diagram of ammunition method of counting in rifle.
Fig. 2 is the structural schematic diagram of ammunition counting display device in a kind of rifle provided by the utility model.
Fig. 3 is the structural representation in a kind of rifle provided by the utility model in ammunition counting display device in mating magazine
Figure.
Fig. 4 is the vertical view knot of mating magazine cross section in ammunition counting display device in a kind of rifle provided by the utility model
Structure schematic diagram.
Fig. 5 is that magazine contacts the plan structure of socket in ammunition counting display device in a kind of rifle provided by the utility model
Schematic diagram.
Fig. 6 is that the structure of mating magazine inner orbit in ammunition counting display device in a kind of rifle provided by the utility model is shown
It is intended to.
In a kind of rifle of Fig. 7 in ammunition method of counting single conductive bar connection schematic diagram.
In a kind of rifle of Fig. 8 in ammunition method of counting double conductive bars connection schematic diagram.
Fig. 9 is the circuit connection diagram of ammunition counting display device in a kind of rifle provided by the utility model.
The circuit connection block diagram of ammunition method of counting in a kind of rifle of Figure 10.
Figure 11 is the assembly connection schematic diagram of ammunition counting display device and rifle in a kind of rifle provided by the utility model.
Figure 12 is the display embodiment of LCD display in ammunition counting display device in a kind of rifle provided by the utility model
Figure.
Description of symbols:
The mating magazine of 1-, 101- spring bottom plate, the first spring of 102-, 103- push away diving board, the first ball orbit of 104-, 105-
Second ball orbit, the conductive ball of 106- first, the conductive ball of 107- second, 108- third ball orbit, the 4th ball of 109-
Track, 110- third ball, the 4th ball of 111-, 112- conduction anti-seismic spring, 113- second spring, 114- resistor stripe, 115-
Conductive bar, 2- magazine contact socket, 201- the first magazine contact head, 202- the second magazine contact head, 3- wire guide plate, 4- clamping
Plate, 5-LCD display screen, 6- switch control knob, 7- advance control button, 8- retreat control button, 9- confirming button, and 10- is pressed
Button lid, 11- ammunition, 12- resistance, 13- tenon socket.
Specific embodiment
A specific embodiment of the utility model is described in detail in middle Fig. 1-Figure 12 with reference to the accompanying drawing, but
It should be understood that the protection scope of the utility model is not limited by the specific implementation.
As shown in Fig. 1 and Figure 10, ammunition method of counting in a kind of rifle, comprising the following steps:
S1, in rifle be arranged fixed value resistance and with the matched multiple resistance 12, Duo Ge electricity of maximum ammunition quantity and position
12 series connection of resistance forms series resistance item；
S2, conduction pushes away one end of diving board and series resistance item is slidably connected, and conduction pushes away the other end connection definite value electricity of diving board
One end of resistance, the anode of the other end connection power module of fixed value resistance, the cathode of series resistance item connection power module are formed
Series loop；
S3, voltage detecting is carried out to the both ends of fixed value resistance；
S4, fixed value resistance both ends voltage change reflection series loop in resistance variation, pass through resistance in series loop
Variation reflection rifle in ammunition quantity.
As shown in Figure 10, the power module includes battery and voltage-stablizer, and the battery is connect by switch with voltage-stablizer,
Fixed value resistance and series resistance item are connect with voltage-stablizer respectively.
The utility model uses the principle of series resistance partial pressure, pushes away diving board by conduction and is slidably connected with resistor stripe 114, real
Existing rheostatic principle, by carrying out voltage detecting to fixed value resistance, the variation of resistance in Lai Tixian series loop, to reflect
The quantity of ammunition number in rifle.
The utility model is applied widely, is applicable in for pushing away the magazine of spring plate type, for peashooter, civil-use gun or military
Rifle is applicable in.
The ammunition 11 is resistor-type ammunition；Conduction pushes away diving board and contacts with resistor-type ammunition, from bottom to top two neighboring electricity
Resistance type ammunition contacts with each other.
As shown in figures 1 to 6, it contacts with each other to form series resistance to simulate series electrical up and down by multiple resistor-type ammunitions
Item is hindered, structure is simple.
As shown in figure 8, further including conducting wire and power spring in rifle, fixed value resistance is connect with power spring by conducting wire, is led
Electrical spring connection conduction pushes away diving board.
Power spring pushes conduction to push away diving board and pushes to ammunition remaining in rifle, and structure is simple.
As shown in figure 9, further including calibrating resistance in rifle, calibrating resistance is connected between power module and fixed value resistance.
For calibrating to resistance in circuit, compensation after long-term use, exists calibrating resistance due to series resistance item
Error.
As shown in Fig. 2, Fig. 9 and Figure 11, ammunition counting display device in a kind of rifle, comprising: magazine contacts socket 2, conducting wire
The top of rifle is arranged in plate 3, the mating magazine 1 and card adapter plate 4 that connection is matched with rifle, card adapter plate 4, and card adapter plate 4 is equipped with power supply
Module, single-chip microcontroller, fixed value resistance, voltmeter, control button component and LCD display 5, magazine contact socket 2 and mating magazine 1
Interior conduction pushes away diving board and the matching connection of series resistance item, and magazine contact socket 2 is connect by wire guide plate 3 with fixed value resistance, fixed
It is worth resistance both ends and connects voltmeter, voltmeter is connect with single-chip microcontroller, and LCD display 5 is located at the front of control button component, fixed
Value resistance, single-chip microcontroller and LCD display 5 connects with power module respectively, LCD display 5 respectively by control button component and
Single-chip microcontroller is connected with power module.
The course of work and principle: the lower end of wire guide plate 3 contacts the conduction being arranged in socket 2 and mating magazine 1 by magazine
It pushes away diving board and series resistance item 114 connects, the upper end of wire guide plate 3 is connected by 4 default value resistance of card adapter plate with single-chip microcontroller, is passed through
The voltage at monolithic machine testing fixed value resistance both ends, single-chip microcontroller by the voltage signal at fixed value resistance both ends carry out processing be converted to it is mating
Ammunition number in magazine 1, is shown by LCD display 5, and LCD display is located at the top of rifle, positioned at control button just before
Side, the user of face rifle help soldier's existence, destroy so that soldier can see the quantity of ammunition in rifle while aiming at
It goes out enemy, wins the victory.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the mating magazine 1 includes magazine shell, the intracorporal bottom of magazine shell
Equipped with spring bottom plate 101, spring bottom plate 101 is connect by the first spring 102 with diving board 103 is pushed away, and magazine case inside face is along length
Degree direction is symmetrically arranged with the first ball orbit 104 and the second ball orbit 105, and the bottom margin for pushing away diving board 103 is equipped with and first
Ball orbit 104 and the second ball orbit 105 correspond the conductive ball 106 of first to be slidably connected and the second conductive ball
107, the first conductive ball 106 and the second conductive ball 107 pass through conductive anti-seismic spring 112 and connect, in the first ball orbit 104
It is equipped with the resistor stripe 114 being composed in series by multiple resistance from bottom to top, is equipped with conductive bar from bottom to top in the second ball orbit 105
115；
The medial surface of the magazine contact socket 2 is equipped with the first magazine contact head 201 and the second magazine contact head 202,
It is additionally provided on magazine contact socket 2 and connects with the matched tenon socket 13 of rifle, the first magazine contact head 201 with 114 upper end of resistor stripe
Connect, the second magazine contact head 202 is connect with conductive bar 115, the lower end of wire guide plate 3 respectively with the first magazine contact head 201 and
The upper end of the connection of two magazine contact heads 202, wire guide plate 3 connects fixed value resistance.
The course of work and principle: by setting series resistance item 114 in the first ball orbit 104, in the second ball orbit
Conductive bar 115 is set in 105, by being equipped with and the first ball orbit 104 and the second ball orbit in the bottom margin for pushing away diving board 103
105 correspond the conductive ball 106 of first to be slidably connected and the second conduction ball 107, and the first conductive ball 106 and second is led
Electric ball 107 passes through conductive anti-seismic spring 112 and connects, and realizes and variable in-line resistance is arranged in mating magazine 1, and structure is simple,
It is economical and practical.
As shown in Figure 3 and Figure 4, magazine case inside face is symmetrically additionally provided with third ball orbit 108 along its length
With the 4th ball orbit 109, the bottom for pushing away diving board 103 is equipped with and 109 1 a pair of third ball orbit 108 and the 4th ball orbit
The third ball 110 and the 4th ball 111 that should be slidably connected, third ball 110 and the 4th ball 111 pass through second spring 113
Connection.
Passed through by setting third ball orbit 108 and the 4th ball orbit 109, third ball 110 and the 4th ball 111
Second spring 113 connects, and enables and pushes away diving board 103 and steadily ammunition is pushed to rise.
The side of the control button component is equipped with retractable button cover 10, the button assembly include: switch control by
Button 6, retreats control button 8 and confirming button 9 at advance control button 7；
The described first conductive ball 107 of conductive ball 106, second, third ball 110 and the 4th ball 111 are copper bead；
The mating magazine 1, magazine contact socket 2, wire guide plate 3, card adapter plate 4,5 switch control knob 6 of LCD display,
Advance control button 7, retrogressing control button 8 and confirming button 9 are made of insulating water-proof anti-seismic material.
The electric conductivity and polishing machine of copper bead are excellent, improve the service life of device, and insulating water-proof anti-seismic material makes
Obtaining device can use in different severe environments.It can also be with noctilucent function.
Further include optical foresight module in the card adapter plate 4, optical foresight module respectively with power module and monolithic
Machine connection.
Optical laying is realized by optical foresight module, is shown so that aiming at and being shown in LCD with ammunition volume residual
On screen 5, it is easy to use.
Wireless communication module is additionally provided in the card adapter plate, wireless communication module connects with power module and single-chip microcontroller respectively
It connects.
Module by wireless communication, single-chip microcontroller can upload to the ammunition quantity in rifle in command system, believe building
Digitized battlefield is ceased to be of great significance.
The utility model uses the principle of series resistance partial pressure, is allowed to become rheostat by the slightly transformation to magazine,
Cooperate single-chip microcontroller to convert the processing of voltage electric signal, becomes ammunition digital display and show on the lcd screen, realize the number of bullet casket ammunition
Word is shown, can show how many bullet is gone back in magazine and rifle；It can show magazine quantity, total surplus ammunition number；It can the extraordinary son of display
Whether bullet (armor-piercing bullet drags photoelastic, firebomb etc.) position and the extraordinary bullet of prompt are fired；Above data can be uploaded to team leader
And the fight networked system of headquarter.
This module design is an additional hanging part of rifle, is not transformed to rifle itself.
The magazine of transformation will regard variable resistance as.
In digital processing unit containing with the concatenated fixed value resistance of magazine, voltmeter, voltage electric signal is converted into digital signal
Single-chip microcontroller, battery, control switch, calibrating resistance.
Pushing away diving board contact head is copperhead or copper bead, is connected with conductive anti-seismic spring.The present apparatus will meet and make under severe conditions
With, can simultaneously with noctilucent function.Carrier is general screen, and no multiple reflective sight has multiple optical foresight.Power supply system
System, it is desirable that burning voltage when cell voltage changes.Use cr2023 3v button cell.Fixed value resistance is that temperature influence causes
Resistance variations are small.Signal conversion uses single-chip microcontroller.Control is mcu programming.Shell is waterproof, heat-insulated, antidetonation resistance to compression.It is military
Industrial aluminium alloy or engineering plastics.Wirelessly upload anti-interference, anti-EMP impact.The test method of electronic pattern, integrated level is high,
It is small in size, it is light.Using modularized design, modularization effect is stronger, and is loaded on rifle by 1903 guide rail clips, such as Figure 11 institute
Show, quick detachable maintenance and replacement.To gun body without transformation, magazine versatility is not influenced on the transformation of magazine.Principle is simple, and element is not
It is more, it is at low cost, it is suitble to equip army's requirement on a large scale.Data will upload to the system of commanding troops, and have to building digital battlefield
Important function.It is not required to the visual field leaving sighting device when shooting, compacting enemy and vigilant enemy army is facilitated to attack.The label of special ammunition
It will more tactics with reminding.Magazine internal structure is simpler；It can show that special sticking position is set and whether fired to be more suitable for
It is used under severe environmental conditions, longer life expectancy.
The utility model is using MSP430F149 single-chip microcontroller as core, the equipment of remaining bullet quantity in detection magazine.Magazine
The increase and decrease of interior bullet causes the variation of spring displacement to generate electric signal to MSP430F single-chip microcontroller, and single-chip microcontroller handles signal
And real-time transmission is shown to display screen.Experiments have shown that the equipment detection accuracy is high, easy to operate, not influence firearms normal
Function and manufacturing cost is low.
The utility model is by being arranged resistor stripe and conductive bar in magazine, so that magazine becomes variable with the percussion of ammunition
Resistance, by carrying out voltage detecting to fixed value resistance, the variation of resistance in Lai Tixian series loop, to reflect ammunition number in rifle
Quantity, the utility model have it is small in size, it is light-weight, it is at low cost, be easy maintenance, count that accuracy is high, and durable, aiming is penetrated
The moment knows the feature of ammunition number when hitting, so that soldier can see the quantity of ammunition in rifle while aiming at, helps soldier
Existence, annihilates the enemy, wins the victory.
This module, which also has, passes to soldier's mobile phone by bluetooth for soldier's ammunition number, then uploads to team leader, finally passes to
On the Battlefield Data System of commanding officer.This will be of great significance in the battlefield of building information digitalization.
Disclosed above is only several specific embodiments of the utility model, and still, the utility model embodiment is not office
It is limited to this, the changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.
Claims (8)
1. ammunition counting display device in a kind of rifle characterized by comprising magazine contacts socket (2), wire guide plate (3) and rifle
The mating magazine (1) and card adapter plate (4) of connection are matched, the top of rifle is arranged in card adapter plate (4), and card adapter plate (4) is equipped with power supply
Module, single-chip microcontroller, fixed value resistance, voltmeter, control button component and LCD display (5), magazine contact socket (2) with it is mating
Conduction in magazine (1) pushes away diving board and the matching connection of series resistance item, and magazine contacts socket (2) and passes through wire guide plate (3) and definite value
Resistance connection, fixed value resistance both ends connect voltmeter, and voltmeter is connect with single-chip microcontroller, and LCD display (5) is located at control button group
The front of part, fixed value resistance, single-chip microcontroller and LCD display (5) are connect with power module respectively, and LCD display (5) passes through control
Button assembly processed is connect with single-chip microcontroller.
2. ammunition counting display device in rifle as described in claim 1, which is characterized in that the mating magazine (1) includes bullet
Cartridge case body, the intracorporal bottom of magazine shell are equipped with spring bottom plate (101), and spring bottom plate (101) is by the first spring (102) and pushes away bullet
Plate (103) connection, magazine case inside face is symmetrically arranged with the first ball orbit (104) and the second ball orbit along its length
(105), the bottom margin for pushing away diving board (103) is equipped with to be corresponded with the first ball orbit (104) and the second ball orbit (105)
The conductive ball (106) of first to be slidably connected and the second conductive ball (107), the first conductive ball (106) and the second conductive rolling
Pearl (107) passes through conductive anti-seismic spring (112) and connects, and is equipped with from bottom to top by multiple resistance strings in the first ball orbit (104)
Join the resistor stripe (114) of composition, is equipped with conductive bar (115) from bottom to top in the second ball orbit (105)；
The medial surface of magazine contact socket (2) is equipped with the first magazine contact head (201) and the second magazine contact head
(202), it is additionally provided with and the matched tenon socket (13) of rifle, the first magazine contact head (201) and resistance in magazine contact socket (2)
The connection of item (114) upper end, the second magazine contact head (202) connect with conductive bar (115), and the lower end of wire guide plate (3) is respectively with the
One magazine contact head (201) and the connection of the second magazine contact head (202), the upper end of wire guide plate (3) connect fixed value resistance.
3. ammunition counting display device in rifle as claimed in claim 2, which is characterized in that magazine case inside face is along length
Degree direction is symmetrically additionally provided with third ball orbit (108) and the 4th ball orbit (109), push away the bottom of diving board (103) equipped with
Third ball orbit (108) and the 4th ball orbit (109) correspond the third ball (110) and the 4th ball being slidably connected
(111), third ball (110) and the 4th ball (111) are connected by second spring (113).
4. ammunition counting display device in rifle as described in claim 1, which is characterized in that the side of the control button component
Equipped with retractable button cover (10), the button assembly includes: switch control knob (6), advance control button (7), retreats control
Button (8) processed and confirming button (9).
5. ammunition counting display device in rifle as claimed in claim 2, which is characterized in that the described first conductive ball (106),
Second conductive ball (107), third ball (110) and the 4th ball (111) are copper bead.
6. ammunition counting display device in rifle as claimed in claim 4, which is characterized in that the mating magazine (1), magazine connect
Touch socket (2), wire guide plate (3), card adapter plate (4), LCD display (5) switch control knob (6), advance control button (7), after
It moves back control button (8) and confirming button (9) is made of insulating water-proof anti-seismic material.
7. ammunition counting display device in rifle as described in claim 1, which is characterized in that further include in the card adapter plate (4)
Optical foresight module, optical foresight module are connect with power module and single-chip microcontroller respectively.
8. ammunition counting display device in rifle as described in claim 1, which is characterized in that be additionally provided in the card adapter plate (4)
Wireless communication module, wireless communication module are connect with power module and single-chip microcontroller respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820758492.4U CN208818067U (en) | 2018-05-21 | 2018-05-21 | Ammunition counting display device in a kind of rifle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820758492.4U CN208818067U (en) | 2018-05-21 | 2018-05-21 | Ammunition counting display device in a kind of rifle |
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| CN208818067U true CN208818067U (en) | 2019-05-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534595A (en) * | 2018-05-21 | 2018-09-14 | 高山水灵 | Ammunition method of counting and counting display device in a kind of rifle |
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2018
- 2018-05-21 CN CN201820758492.4U patent/CN208818067U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534595A (en) * | 2018-05-21 | 2018-09-14 | 高山水灵 | Ammunition method of counting and counting display device in a kind of rifle |
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