Three-feeding type three-row magazine and bullet feeding device thereof
By setting up a support plate and buckle teeth in the third row magazine, combined with the push-up bamboo shoots of the ammunition device and the locking slot of the barrel joint sleeve, the "three rows and three inflow" ammunition method of the three row magazine is realized, solving the problem of high failure rate of the jam and improving the reliability and stability of the magazine.
Patent Information
- Application Number
- CN202411906557.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-08-01
AI Technical Summary
The existing three-row magazine adopts the "three rows and two in" ammunition, which leads to a high failure rate of jamming, which affects its reliability and practicality.
The "three rows and three steps" type of ammunition is adopted. By setting up a support plate and a support spring in the magazine body, the middle-row bullets are kept in a misalignment with the left and right-row bullets, and the left, right and middle-back bullets and elastic anti-hopping plates are set on the side plate of the magazine body. Combined with the left and right pushing bullets of the bullet device and the locking slot of the barrel joint sleeve of the barrel, ensuring that the bullet remains vertically subjected to force and stable trajectory during the upward movement.
It reduces bullet failures, improves the reliability and stability of the three-row magazine, and promotes the practicality of the three-row magazine.
Smart Images
Figure CN120403330A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to firearms, and particularly to a three-in three-row magazine and a feeding device for a three-in three-row magazine used in cooperation therewith. Background Art
[0002] Most modern rifles use two-row magazines. In order to further enhance firepower, some people have designed large-capacity magazines such as three-row and four-row magazines. Among the above three types of magazines, the two-row magazine is light but has a small ammunition capacity and weak firepower; the four-row magazine has a large ammunition capacity and strong firepower, but is too bulky and has poor mobility; while the three-row magazine in the middle has a larger ammunition capacity than the two-row magazine, and its volume and weight are smaller than those of the four-row magazine. Therefore, it has greater firepower and is not too bulky, and better balances the firepower and mobility of the firearm, which is a more appropriate choice. However, the existing three-row magazines use a "two-in three-row" feeding method, resulting in a high failure rate. Specifically: above the magazine, the left and right originally upright side plates of the magazine body are bent inward to form a trumpet-shaped converging section, and the three rows of cartridges are converged into two rows, increasing the moving resistance of the cartridges, changing the correct force direction, moving direction and trajectory of the cartridges, and easily causing cartridge jamming failures, so that three-row magazines are rarely used. Summary of the Invention
[0003] The purpose of the present invention is to provide a three-in three-row magazine to reduce the cartridge jamming failure of the three-row magazine and improve the reliability of the three-row magazine, and further provide a feeding device for a three-in three-row magazine.
[0004] The technical solution adopted by the present invention to solve its technical problems is: A three-in three-row magazine mainly includes a magazine body for loading three rows of cartridges, and a cartridge support plate and a cartridge support spring are provided in the magazine body. A longitudinal protrusion or groove with a size of half of a cartridge is formed in the middle of the cartridge support plate, so that the middle row of cartridges is arranged out of alignment with the left and right row of cartridges, and both sides of the cartridge support plate are respectively matched with the side walls of the magazine body to maintain stability. On the upper edges of the left side plate and the right side plate of the magazine body, a left cartridge retaining tooth and a right cartridge retaining tooth are respectively provided, and the position of the right cartridge retaining tooth is higher than that of the left cartridge retaining tooth. On the inner wall of the magazine body corresponding to the lower part of the right cartridge retaining tooth, an elastic anti-jump piece is arranged. The lower edge of the anti-jump piece is connected to the inner wall of the magazine body, and the upper edge is in a free state and is an arc inclined inward, which can temporarily press the top cartridge in the right row. A middle cartridge retaining tooth for cooperating with the middle row of cartridges is provided at the middle position between the left cartridge retaining tooth and the right cartridge retaining tooth. One end of the middle cartridge retaining tooth is fixedly connected to the magazine body at the tail of the cartridge, and the other end extends forward cantileveredly, for retaining the top cartridge in the middle row, and the position where the middle row of cartridges is retained is at the same height as the position where the top cartridge in the left row is retained.
[0005] A further technical solution is to provide an elastic pressing spring wing on the bottom side of the middle buckling spring tooth. The root of the wing is connected to the bottom side of the middle buckling spring tooth, and the wing tip is in a free state and extends obliquely downward in the front direction, capable of pressing the topmost middle-row bullet that stops below the middle buckling spring tooth and has not been buckled yet.
[0006] The present invention also provides a feeding device for a three-in three-row magazine, mainly including a bolt and a barrel sleeve. Along the lower left side and the lower right side of the front end of the bolt, protruding left and right bullet pushing lugs are respectively provided. The remaining parts of the front end of the bolt are provided with several outwardly protruding locking lugs. Both the left and right bullet pushing lugs are pentagonal in shape, and a spacing is left between the left and right bullet pushing lugs to accommodate the middle buckling spring tooth, so that the left bullet pushing lug can pass through between the left buckling spring tooth and the middle buckling spring tooth, and the right bullet pushing lug can pass through between the middle buckling spring tooth and the right buckling spring tooth; the size of the right bullet pushing lug is smaller than that of the left bullet pushing lug. When the topmost left-row bullet is buckled, the left bullet pushing lug abuts against the bottom of the topmost left-row bullet, while the right bullet pushing lug cannot contact the topmost right-row bullet. And when the topmost right-row bullet is buckled by the right buckling spring tooth, the right bullet pushing lug abuts against the topmost right-row bullet Bottom ; when the topmost middle-row bullet is buckled, both the inner sides of the left and right bullet pushing lugs can abut against the bottom of the topmost middle-row bullet.
[0007] A further technical solution is to machine several locking slots on the inner wall at the rear end of the barrel sleeve, and make the shapes of the two locking slots located on the lower left side and the lower right side respectively adapt to the left and right bullet pushing lugs. The beneficial effects of the present invention are: The three-in three-row magazine of the present invention adopts a "three-row three-in" feeding method, enabling the bullet to always maintain a state of correct force, small resistance, determined trajectory, and stable movement during the upward movement process, which is beneficial to reducing the feeding jamming failure of the three-row magazine, improving the reliability, and thus promoting the practical application of the three-row magazine.
[0008] The present invention will be further described below in conjunction with the drawings and embodiments. Description of the Drawings
[0009] Figure 1 is the front view of a three-in three-row magazine of the present invention; Figure 2 is Figure 1 the left view of Figure 3 is Figure 1 the top view of Figure 4 is Figure 1 the A--A sectional view of Figure 5 is the front view of the feeding device, showing the situation where the topmost left-row bullet is about to be pushed by the left bullet pushing lug; Figure 6 is Figure 5Left view; Figure 7 is Figure 5 Stereogram; Figure 8 Is a sectional view of the state where the top bullet in the right - moving row is pushed by the right - pushing bullet guide; Figure 9 is Figure 9 Stereogram showing the state where the top bullet in the right - moving row is pushed by the right - pushing bullet guide; Figure 10 Is a sectional view of the state where the top bullet in the middle - moving row is pushed by the left - and - right - pushing bullet guides together; Figure 11 is Figure 11 Stereogram showing the state where the top bullet in the middle - moving row is pushed by the left - and - right - pushing bullet guides together; Figure 12 Is a sectional view of the feeding device combined with the firearm; Figure 13 is Figure 12 Stereogram; Figure 14 Is a stereogram of the state where the bolt is about to pass through the barrel bushing; Figure 15 Is a stereogram of the state where the bolt has just passed through the barrel bushing; Figure 16 Is a stereogram of the state where the bolt and the barrel bushing form a locked state; Figure 17 Is a stereogram of the state where a missile inclined plane is provided at the tail end of the barrel bushing; Figure 18 Is a schematic diagram of a three - row magazine in the United States; Figure 19 Is a schematic diagram of a three - row magazine in Russia. Detailed implementation mode
[0010] Embodiment 1: A three - feed three - row magazine (see Figure 1 , Figure 2 , Figure 3 ), mainly including a magazine body 1, a bullet support plate 2 and a support spring 3. The magazine body contains left, middle and right three rows of bullets arranged in a staggered manner. The left and right sides of the bullet support plate are respectively in close contact with the left and right side plates of the magazine body. A longitudinal protrusion or groove with a size of half of the bullet size is made in the middle of the bullet support plate 2, so that the middle - row bullets are arranged out of alignment with the left - and right - row bullets.
[0011] The three bullets at the top of the three rows of bullets are respectively called the left - moving top bullet, the middle - moving top bullet and the right - moving top bullet (in Figure 1They are respectively labeled as 101, 103 and 102 in the figure). The supporting spring and the supporting plate push the cartridges in the magazine body upward. The magazine body is surrounded by four side plates in the front, rear, left and right directions (the directions are distinguished along the direction of the cartridges, the same below). Its left and right side plates are straight walls from bottom to top. The left, middle and right rows of cartridges are arranged in three rows from bottom to top. At the upper edges of the left side plate and the right side plate of the magazine body, there are respectively a left cartridge retaining tooth 4 and a right cartridge retaining tooth 5, which are respectively used to retain the top row of cartridges in the left row and the top row of cartridges in the right row, and the position of the right cartridge retaining tooth is higher than that of the left cartridge retaining tooth, so that the position where the top row of cartridges in the right row is retained is higher than the position where the top row of cartridges in the left row is retained, and the height difference is not less than the cartridge feeding height of the cartridge (that is, the contact height when the feeding device touches the bottom of the cartridge). On the inner wall of the right side plate of the magazine body below the right cartridge retaining tooth, there is an elastic anti-jump piece 6. The lower edge of the anti-jump piece is connected to the inner wall of the right side plate, and the upper edge is in a free state and inclined inward in an arc shape, which can press the top row of cartridges in the right row that stops below the right cartridge retaining tooth and has not been retained to prevent cartridge jump. And when the cartridge is pushed upward, the anti-jump piece can be pushed outward to continue moving upward; There is a middle cartridge retaining tooth 7 parallel to the cartridge in the middle of the left cartridge retaining tooth and the right cartridge retaining tooth. Its root is fixedly connected to the rear side plate of the magazine body and the head extends forward, which is used to retain the top row of cartridges in the middle row, and the position where the cartridge is retained is the same height as the position where the top row of cartridges in the left row is retained. There is an elastic cartridge pressing wing 8 on the bottom side of the middle cartridge retaining tooth (see Figure 4 ), its wing root is connected to the bottom side of the middle cartridge retaining tooth, and the wing tip is in a free state and extends forward and obliquely downward, which can press the top row of cartridges in the middle row that stops below the middle cartridge retaining tooth and has not been retained to prevent cartridge jump. And when the cartridge is pushed upward, the cartridge pressing wing can be bent upward to continue moving upward.
[0012] Embodiment 2. A feeding device for a three-feed three-row magazine mainly includes the aforementioned three-feed three-row magazine, a bolt 9 and a barrel sleeve 10. The three-feed three-row magazine is inserted into the receiver 11. The rear end of the bolt is inserted into the bolt carrier 12 to perform forward and backward sliding and left and right rotation cooperation. The bolt carrier is installed in the receiver to perform forward and backward sliding and drive the bolt to reciprocate above the three-feed three-row magazine (see Figure 12 、 Figure 13 ), and the bottom side of the bolt carrier and the bottom side of the bolt cannot touch the left cartridge retaining tooth 4, the middle cartridge retaining tooth 7 and the right cartridge retaining tooth 5 on the magazine body. Along the periphery of the front end of the bolt, there are respectively a left cartridge pushing lug 13 and a right cartridge pushing lug 14 protruding outward on its lower left side and lower right side, and several locking lugs 15 protruding outward on the remaining parts (see Figure 5 、 Figure 6 、 Figure 7), the left and right cartridge pushers shall meet the following requirements: both the left and right cartridge pushers shall also serve as locking lugs; a gap shall be left between the left and right cartridge pushers to accommodate the middle locking teeth; the left cartridge pusher shall be able to pass through between the left locking teeth and the middle locking teeth, and the right cartridge pusher shall be able to pass through between the middle locking teeth and the right locking teeth; the size of the right cartridge pusher shall be smaller than that of the left cartridge pusher. When the top cartridge in the left row is locked, the left cartridge pusher can contact the bottom of the top cartridge in the left row, while the right cartridge pusher cannot contact the top cartridge in the right row. And when the top cartridge in the right row is locked, the right cartridge pusher can contact the bottom of the top cartridge in the right row; when the top cartridge in the middle row is locked, both the inner side of the left cartridge pusher and the inner side of the right cartridge pusher can contact the bottom of the top cartridge in the middle row; it is also required that the contact surface between each cartridge pusher and the bottom of the cartridge is large enough and cannot scratch the cartridge. To meet the above requirements simultaneously, both the left and right cartridge pushers are set as pentagons (different from the quadrilateral of the conventional locking lug). The barrel sleeve is sleeved on the tail of the barrel 16, and several locking slots 10a (see Figure 12 、 Figure 13 、 Figure 14 ), which cooperate with the locking lugs, are made on the inner wall at the rear end of the barrel sleeve, and the shapes of the two locking slots located on the lower left side and the lower right side are respectively adapted to the shapes of the left and right cartridge pushers. The locking lugs and the locking slots cooperate to jointly complete the locking of the chamber at the tail of the barrel; the protruding parts between each locking slot are made into slopes to form a missile slope 10b (see Figure 12 、 Figure 17 ), so as to induce the bullet head of the pushed cartridge to gradually deflect and approach the chamber until it enters the chamber.
[0013] The working principle and beneficial effects of the three-in three-row magazine and the feeding device of the three-in three-row magazine will be further described below in combination with the feeding process and the attached drawings.
[0014] As shown in Figure 5 、 Figure 6 、 Figure 7 : Driven by the magazine spring and the cartridge support plate, the cartridges in the magazine body move upward. When the top cartridge in the left row (101) moves up and touches the left locking teeth and is locked, it blocks the upward movement of the cartridges in the magazine body. As the bolt moves forward and recoils, the larger-sized left cartridge pusher can contact the bottom of the top cartridge in the left row to push the cartridge, while at this time, the top cartridge in the right row (102) stops at the same height as the top cartridge in the left row and has not been locked yet. The upper edge of its upper right side is pressed by the elastic anti-jump piece 6 to prevent bullet jump. Since the cartridge has not reached the highest position when it is locked, the smaller-sized right cartridge pusher cannot contact the cartridge; as for the top cartridge in the middle row (103) at this time, it stops below the top cartridge in the left row and the top cartridge in the right row, and neither of the two cartridge pushers can contact the cartridge. As the top cartridge in the left row is pushed out, the magazine spring expands and pushes the cartridges in the magazine body to continue moving upward, and the top cartridge in the right row pushes the anti-jump piece outward and continues to move upward.
[0015] As Figure 8 , Figure 9 shown: When the top cartridge in the right row moves upward and touches the right cartridge retaining tooth and is retained, the right cartridge pusher can abut against the bottom of the cartridge to push the cartridge, while the top cartridge in the middle row is still pressed below at this time, so the two cartridge pushers still cannot touch this cartridge, and this cartridge is pressed by the tip of the elastic cartridge pressing wing 8 to prevent cartridge bounce. As the top cartridge in the right row is pushed out, the cartridges in the magazine body continue to move upward, and the top cartridge in the middle row bends the elastic cartridge pressing wing upward and continues to move upward.
[0016] As Figure 10 , Figure 11 shown: When the top cartridge in the middle row moves upward and touches the middle cartridge retaining tooth and is retained, both the inner side of the left cartridge pusher and the inner side of the right cartridge pusher can abut against the bottom of this cartridge to push the cartridge. At this time, the new top cartridge in the left row (104) and the new top cartridge in the right row (105) are both pressed below and cannot touch the corresponding cartridge pushers. As the top cartridge in the middle row is pushed out, the cartridges in the magazine body continue to move upward until the new top cartridge in the left row touches the left cartridge retaining tooth and is retained, and the above process is repeated continuously.
[0017] The process of chamber locking is as follows: When the bolt carrier moves forward and drives the bolt to push the cartridge, the locking lugs, the left cartridge pusher and the right cartridge pusher on the bolt are respectively aligned with the corresponding locking slots at the rear end of the barrel bushing (see Figure 14 , the cartridge is not shown); as the bolt continues to move forward, the locking lugs, the left cartridge pusher and the right cartridge pusher pass through the corresponding locking slots. When the cartridge is pushed into the chamber, the bolt stops moving, but the bolt carrier still continues to move forward (see Figure 15 ); when the bolt carrier moves forward, the rear inclined surface of the shaping groove 12a formed thereon presses the shaping lug 9a on the bolt to move laterally and rotate, and drives the bolt to rotate a certain angle, so that the rear end faces of the locking lugs and the respective cartridge pushers are respectively aligned with the front end faces of the protrusions between the respective locking slots. The bolt carrier stops moving, the bolt stops rotating, and the locking lugs and the respective cartridge pushers are blocked by the protrusions between the respective locking slots behind, so that the bolt cannot move backward, thereby locking the chamber (see Figure 16 ).
[0018] Compared with the existing three-row magazines, the three-in three-row magazine has positive effects. There are fewer existing three-row magazines. Although they each have their own characteristics, they all have one thing in common: they all adopt the "three-row two-in" feeding method. Above the magazine, the left and right originally vertical side plates of the magazine body are bent inward into slopes to form a trumpet-shaped converging section 17. When the three rows of bullets below move up to this section, the bullets on both sides are gradually squeezed and displaced inward by the slopes on both sides, and converge into two rows to reach the two-row feeding port at the top of the magazine waiting to be pushed. This "three-to-two" method brings many disadvantages: First, the resistance of the slopes in the converging section to the bullets increases significantly, blocking the upward movement of the bullets; second, it changes the ideal state where the bullets are originally vertically stressed and vertically move upward with the least resistance and a determined trajectory, making the force on the bullets deviate and the trajectory skew, further increasing the movement resistance of the bullets and the uncertainty of the trajectory, and easily causing the bullets to jam, get stuck or hang in the air; third, in order to enable the bullet support plate to always move up to the top of the magazine to push all the bullets into the feeding port, the width of the bullet support plate cannot exceed the width of the narrowed upper part of the magazine, resulting in the left and right sides of the bullet support plate not being able to respectively abut against the vertical left and right side plates of the magazine body, and it is easy to tilt and become unstable. The above various factors are all likely to cause cartridge jamming failures. In addition, the shape of its converging section is asymmetrical left and right, resulting in an irregular magazine shape and the center of gravity not being in the middle. There is also a three-row magazine with a structure of "double bullet support plates, double bullet support springs plus an intermediate partition" designed by Russians (see Figure 19 ), which also adopts the "three-row two-in" feeding method. In addition to the above main defects, it also complicates the structure and increases the size and weight of the magazine. Due to the too high failure rate of the existing three-row magazines, such a relatively moderate magazine is rarely used and even withdrawn from practical use.
[0019] The three-in three-row magazine of the present invention adopts the "three-row three-in" feeding method. The left and right side plates of the magazine body are straight walls from bottom to top without a sloped converging section. The three rows of bullets in the magazine body remain in three rows from bottom to top without converging into two rows. The three top bullets of the three rows of bullets can be respectively held by three bullet retaining teeth, forming three feeding positions. The beneficial effects of such a setting are: First, the three rows of bullets remain vertically stressed and vertically move upward from bottom to top; second, the width of the bullet support plate is the same as the distance between the left and right side plates of the magazine body, enabling the left and right sides of the bullet support plate to respectively closely abut against the left and right side plates of the magazine body, with good stability. These factors enable the bullets to always maintain a state of correct force, small resistance, determined trajectory and stable movement during the upward movement, which is beneficial to reducing the cartridge jamming failure of the three-row magazine, improving the reliability, and thus promoting the practical application of the three-row magazine.
Claims
1. A three-inlet three-row magazine, comprising a magazine body (1) for loading three rows of cartridges, a cartridge support plate (2) and a support spring (3) are arranged in the magazine body, and it is characterized in that: A longitudinal protrusion or groove is formed in the middle of the cartridge support plate (2), so that the middle-row cartridges are arranged out of alignment with the left and right-row cartridges. The two sides of the cartridge support plate are respectively matched with the side walls of the magazine body to maintain stability; On the upper edges of the left side plate and the right side plate of the magazine body, a left cartridge retaining tooth (4) and a right cartridge retaining tooth (5) are respectively provided, and the position of the right cartridge retaining tooth is higher than that of the left cartridge retaining tooth. On the inner wall of the magazine body corresponding to the lower part of the right cartridge retaining tooth, an elastic anti-jump piece (6) is arranged. The lower edge of the anti-jump piece is connected to the inner wall of the magazine body, and the upper edge is in a free state and is an arc inclined inward, which can temporarily press the top cartridge in the right row; A middle cartridge retaining tooth (7) for cooperating with the middle-row cartridges is arranged at the middle position between the left cartridge retaining tooth and the right cartridge retaining tooth. One end of the middle cartridge retaining tooth is fixedly connected to the magazine body at the tail of the cartridge, and the other end extends forward in a cantilever manner for retaining the top cartridge in the middle row, and the position where the middle-row cartridge is retained is at the same height as the position where the top cartridge in the left row is retained.
2. The three-inlet three-row magazine according to claim 1, characterized in that: An elastic cartridge pressing wing (8) is arranged on the bottom side of the middle cartridge retaining tooth. The root of the wing is connected to the bottom side of the middle cartridge retaining tooth, and the wing tip is in a free state and extends obliquely downward forward, which can press the top cartridge in the middle row that stops below the middle cartridge retaining tooth and has not been retained yet.
3. A feeding device for the three-inlet and three-row magazine according to claim 1 or 2, comprising a bolt (9) and a barrel sleeve (10), characterized in that: A protruding left cartridge pushing rib (13) and a right cartridge pushing rib (14) are respectively arranged along the lower left side and the lower right side of the front end of the bolt. Several outwardly protruding locking lugs (15) are arranged on the remaining parts of the front end of the bolt. The left cartridge pushing rib and the right cartridge pushing rib are both arranged in a pentagon shape, and a space is left between the left cartridge pushing rib and the right cartridge pushing rib to accommodate the middle cartridge retaining tooth, so that the left cartridge pushing rib can pass through between the left cartridge retaining tooth and the middle cartridge retaining tooth, and the right cartridge pushing rib can pass through between the middle cartridge retaining tooth and the right cartridge retaining tooth; the size of the right cartridge pushing rib (14) is smaller than that of the left cartridge pushing rib (13). When the top cartridge in the left row is retained, the left cartridge pushing rib abuts against the bottom of the top cartridge in the left row, while the right cartridge pushing rib cannot contact the top cartridge in the right row. And when the top cartridge in the right row is retained by the right cartridge retaining tooth, the right cartridge pushing rib abuts against the bottom of the top cartridge in the right row; when the top cartridge in the middle row is retained, both the inner side of the left cartridge pushing rib and the inner side of the right cartridge pushing rib can abut against the bottom of the top cartridge in the middle row.
4. The feeding device of a three-inlet and three-row magazine according to claim 3, characterized in that, A plurality of locking slots (10a) are formed on the inner wall of the rear end of the barrel sleeve, and the shapes of the two locking slots located on the lower left side and the lower right side are respectively adapted to the left cartridge pushing rib and the right cartridge pushing rib.