Hand-operated propeller

Abstract

The utility model relates to a hand-operated propeller which comprises a supporting bottom plate, one end of the supporting bottom plate is provided with a pressing mechanism used for pressing an ammunition chain, and the middle of the supporting bottom plate is provided with a pushing mechanism which is used for pushing bullets to be loaded into the ammunition chain and can slide relative to the supporting bottom plate. A driving mechanism used for driving the pushing mechanism to slide is arranged at the other end of the supporting bottom plate, a stock bin mechanism used for storing bullets is erected above the driving mechanism and the pushing mechanism, and the bullets in the stock bin mechanism can slide to the pushing end of the pushing mechanism; when bullets in the stock bin mechanism fall down, the side wall on the right side of the oval guide plate can limit falling of bullet tails and only allows bullets to fall down preferentially, and equivalently, the orientation of the whole bullets is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of ammunition supply equipment, in particular to a hand-cranked propeller. Background Art

[0002] The manual crank mechanism allows operators to easily load ammunition into the belt, preparing for combat. The manual loader features a simple structure, easy maintenance, and stable performance even in challenging environments. Currently, the 7.62mm ammunition used in military machine guns is belt-fed, requiring soldiers to clip the bullet into the belt before firing. Manual loading is slow and labor-intensive.

[0003] The authorization announcement number is CN207936849U, which discloses a new closed belt loader. Combined with its specification and drawings, its scheme places the bullet into the funnel above the loading hopper and rotates the rocker at the same time. When the bullet is pushed in for the first time by the bullet push block, it will be pushed in the direction where the bullet head faces forward. However, in the process of the bullet inside the loading hopper falling to the end of the bullet push block, due to the structural characteristics of the bullet push block, there is a risk of the bullet head facing the wrong direction, which brings inconvenience during use. Summary of the Invention

[0004] The utility model mainly aims at the problems existing in the use of the loader and invents a hand-cranked pusher. When the bullet in the guide chamber falls downward, the side wall on the right side of the elliptical guide plate can limit the tail of the bullet from falling, and only allows the bullet head to slide downward first, which is equivalent to correcting the direction of the entire bullet; the width of the column boss is adapted to the gap between the bottoms of the inclined surfaces, and the width of the gap between the bottoms of the inclined surfaces is wide enough to allow only one bullet to be placed, which has a limiting effect on the bullet head and tail of the entire bullet.

[0005] The invention objective of the utility model is achieved through the following technical solutions: a hand-cranked pusher, comprising a supporting base plate, one end of the supporting base plate is provided with a clamping mechanism for compressing an ammunition belt, the middle part of the supporting base plate is provided with a pushing mechanism for pushing bullets into the ammunition belt and capable of sliding relative to the supporting base plate, the other end of the supporting base plate is provided with a driving mechanism for driving the pushing mechanism to slide, a hopper mechanism for storing bullets is mounted above the driving mechanism and the pushing mechanism, and the bullets inside the hopper mechanism can slide to the pushing end of the pushing mechanism.

[0006] Preferably, the clamping mechanism includes a first clamping plate, a first rotating shaft, a second clamping plate, an elastic clamping plate and a locking structure, one end of the first clamping plate is connected to the end of the supporting base plate, the other end of the first clamping plate is connected to the second clamping plate through the first rotating shaft, the surface of the second clamping plate is provided with an elastic clamping plate and a rectangular groove, the elastic clamping plate is clamped on several elastic chains at the bottom of the second clamping plate, and a locking structure for limiting the rotation of the second clamping plate is also provided between the second clamping plate and the hopper mechanism.

[0007] Preferably, the locking structure includes a locking support block, a second rotating shaft and a locking plate, one end of the locking support block is connected to the surface of the second pressure plate, and the other end is rotatably connected to the locking plate through the second rotating shaft, a locking notch is provided on the surface of the locking plate, and a locking boss is provided on one side of the hopper mechanism, and the locking notch can abut against the side wall of the locking boss.

[0008] Preferably, the silo mechanism includes a silo support column, a first silo, a guide silo and a second silo, one end of the silo support column is connected to the surface of the supporting base plate, and the other end is connected to the first silo, and a guide silo is provided between the discharge port of the first silo and the interior of the second silo, and the interior of the guide silo in the vertical direction can stack several bullets, and the width and length of the cross-sectional area of ​​the guide silo in the horizontal direction can only be adapted to one bullet.

[0009] Preferably, the interior of the second hopper is provided with several horizontal surfaces and inclined surfaces, one side of the guide hopper is connected to the surface of the horizontal surface, and the other side is connected to the discharge port of the first hopper. There is a gap between the bottoms of the inclined surfaces and the gap allows the pushing mechanism to slide. The bullet falls into the gap between the bottoms of the inclined surfaces. This arrangement not only facilitates the subsequent pushing of bullets into the interior of the ammunition chain, but also facilitates the limiting of the bullets.

[0010] Preferably, the pushing mechanism includes a pushing guide plate and a column boss, the surface of the supporting base plate is provided with a guide groove, the bottom of the pushing guide plate can be slidably connected to the inside of the guide groove, and a column boss is provided above the middle part of the pushing guide plate and close to the surface of the guide groove. The width of the column boss is adapted to the gap between the bottoms of the inclined surfaces, and when the pushing guide plate slides, the column boss can push the bullet into the inside of the bullet belt.

[0011] Preferably, an elliptical guide plate is provided on the top of the pushing guide plate, and the side wall of the elliptical guide plate can guide the direction of the bullet. This setting is to enable the side wall on the right side of the elliptical guide plate to limit the falling of the bullet tail when the bullet inside the guide chamber falls downward, so that the bullet head slides down first.

[0012] Preferably, the driving mechanism includes a driving handle, a rocker arm support block, a driving rocker arm, a driving cam and a rectangular driving plate, the rocker arm support block is arranged at one end of the supporting base plate, the driving shaft of the driving handle passes through the inside of the rocker arm support block and is connected to the driving rocker arm, the end of the driving rocker arm is rotatably provided with a driving cam, the pushing guide plate, the column boss and one end of the elliptical guide plate are all connected to the rectangular driving plate, the surface of the driving cam is slidably connected to the driving groove on the surface of the rectangular driving plate, and the driving rocker arm is perpendicular to the rectangular driving plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. After the elliptical guide plate moves to the left, the support provided by its surface to the bullet at the bottom of the guide bin will gradually disappear. When the bullet inside the guide bin falls down, the side wall on the right side of the elliptical guide plate can limit the tail of the bullet from falling, and only the head of the bullet can be allowed to slide down first, which is equivalent to correcting the orientation of the entire bullet and ensuring that subsequent bullets can be correctly installed in the inside of the ammunition belt; 2. The width of the column boss is adapted to the gap between the bottoms of the inclined surfaces. The width of the gap between the bottoms of the inclined surfaces can only allow one bullet to be placed, which has a limiting effect on the head and tail of the entire bullet, and only one bullet can fall into it, making it convenient to push the column boss to push the bullet into the inside of the ammunition belt, which brings convenience during use; 3. The length of the driving handle is at least twice that of the driving rocker arm, and the driving shaft of the driving handle can save more effort when driving the driving rocker arm to rotate, which brings convenience during use; 4. The entire hand-cranked propeller has a simple and compact structure and is convenient to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a partial three-dimensional diagram of the utility model;

[0016] Figure 3 It is a partial three-dimensional diagram of the utility model;

[0017] Figure 4 This is a three-dimensional diagram of the utility model after the driving mechanism is removed;

[0018] Figure 5 It is a cross-sectional view of the utility model;

[0019] Figure 6 It is a three-dimensional diagram of the present utility model.

[0020] Markings in the figure: 1. Support base plate; 11. Guide slide; 2. Clamping mechanism; 21. First clamping plate; 22. First rotating shaft; 23. Second clamping plate; 24. Elastic pressure plate; 25. Rectangular groove; 26. Locking support block; 27. Second rotating shaft; 28. Locking plate; 29. ​​Locking notch; 3. Pushing mechanism; 31. Pushing guide plate; 32. Column boss; 33. Elliptical guide plate; 4. Driving mechanism; 41. Rocker arm support block; 42. Driving handle; 43. Driving rocker arm; 44. Driving cam; 45. Rectangular driving plate; 46. Driving slide; 5. Hopper mechanism; 50. Locking boss; 51. Hopper support column; 52. First hopper; 53. Second hopper; 54. Guide hopper; 531. Horizontal plane; 532. Inclined plane; 6. Ellipse chain. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0022] like Figures 1 to 6As shown, a hand-cranked propeller includes a supporting base plate 1, one end of the supporting base plate 1 is provided with a clamping mechanism 2 for compressing the bullet chain 6, specifically, the clamping mechanism 2 includes a first clamping plate 21, a first rotating shaft 22, a second clamping plate 23, an elastic clamping plate 24 and a locking structure, one end of the first clamping plate 21 is connected to the end of the supporting base plate 1, the other end of the first clamping plate 21 is rotatably connected to the second clamping plate 23 through the first rotating shaft 22, and the surface of the second clamping plate 23 is provided with a There are elastic pressure plates 24 and rectangular grooves 25, the elastic pressure plates 24 are pressed against a plurality of elastic chains 6 at the bottom of the second pressure plates 23, and a locking structure for limiting the rotation of the second pressure plates 23 is provided between the second pressure plates 23 and the hopper mechanism 5, wherein the locking structure comprises a locking support block 26, a second rotating shaft 27 and a locking plate 28, one end of the locking support block 26 is connected to the surface of the second pressure plates 23, and the other end is rotatably connected to the locking plate 28 through the second rotating shaft 27, and the surface of the locking plate 28 is fixed to the second pressure plates 23. The first rotating shaft 22 plays a supporting and guiding role during the rotation. After the rotation, the plurality of ammunition chains 6 are placed on the surface of the supporting base plate 1, and then the second pressing plate 23 is rotated in the opposite direction. After the rotation is completed, the locking plate 28 is rotated relative to the locking support block 26 so that the locking notch 29 is stuck in the side wall of the locking boss 50. During this rotation process, the second rotating shaft 27 plays a supporting and guiding role. Since the elastic pressure plate 24 has a certain elasticity, the plurality of ammunition chains 6 located below the second pressing plate 23 will be pressed by the elastic pressure plate 24. However, at this time, the ammunition chains 6 are not completely unable to move. It is just that a certain force is required to pull the plurality of ammunition chains 6 to move, allowing the bullets to be pushed into the ammunition chain 6.

[0023] In this embodiment, a pushing mechanism 3 is provided in the middle of the supporting base plate 1 for pushing bullets into the ammunition belt 6 and capable of sliding relative to the supporting base plate 1. A hopper mechanism 5 for storing bullets is mounted above the pushing mechanism 3. The bullets inside the hopper mechanism 5 can slide to the pushing end of the pushing mechanism 3. Specifically, the hopper mechanism 5 includes a hopper support column 51, a first hopper 52, a guide hopper 54 and a second hopper 53. One end of the hopper support column 51 is connected to the surface of the supporting base plate 1, and the other end is connected to the first hopper 52. A guide hopper 54 is provided between the discharge port of the first hopper 52 and the interior of the second hopper 53. A plurality of bullets can be stacked vertically inside the guide hopper 54. The width and length of the cross-sectional area of ​​the bin 54 in the horizontal direction can only be adapted to one bullet. The interior of the second bin 53 is provided with a plurality of horizontal surfaces 531 and inclined surfaces 532. One side of the guide bin 54 is connected to the surface of the horizontal surface 531, and the other side is connected to the discharge port of the first bin 52. There is a gap between the bottoms of the inclined surfaces 532 and the gap can allow the pushing mechanism 3 to slide. The bullet falls into the gap between the bottoms of the inclined surfaces 532. The pushing mechanism 3 includes a pushing guide plate 31 and a column boss 32. The surface of the supporting base plate 1 is provided with a guide groove 11. The bottom of the pushing guide plate 31 can be slidably connected to the inside of the guide groove 11. The middle part of the pushing guide plate 31 and close to it A cylindrical boss 32 is provided above the surface of the guide chute 11, and the width of the cylindrical boss 32 is adapted to the gap between the bottoms of the inclined surfaces 532. The width of the gap between the bottoms of the inclined surfaces 532 can only allow one bullet to be placed. When the guide plate 31 is pushed to slide, the cylindrical boss 32 can push the bullet into the interior of the bullet belt 6. An elliptical guide plate 33 is provided on the top of the pushing guide plate 31. The side wall of the elliptical guide plate 33 can guide the direction of the bullet. After such arrangement, several bullets are placed inside the first hopper 52, and then the bullets will slide along the inner wall of the first hopper 52 toward the guide hopper 54. Each bullet coming out of the discharge port of the first hopper 52 will fall into the interior of the guide hopper 54 and When they are stacked up, when the guide plate 31 is pushed to drive the column boss 32 and the elliptical guide plate 33 to slide to the left, the support of the surface of the elliptical guide plate 33 for the bullet at the bottom of the guide chamber 54 will gradually disappear. At this time, when the bullet inside the guide chamber 54 falls down, the side wall on the right side of the elliptical guide plate 33 can limit the tail of the bullet from falling, so that the bullet head slides down first, which is equivalent to correcting the direction of the entire bullet. Then, the entire bullet will slide down along the inclined surface 532 until it slides into the inside of the guide slot 11. Then, if the guide plate 31 is pushed to drive the column boss 32 and the elliptical guide plate 33 to slide to the right, the right end of the elliptical guide plate 33 will abut against the tail of the bullet to load the entire bullet into the inside of the ammunition belt 6.

[0024] In this embodiment, the other end of the supporting base plate 1 is provided with a driving mechanism 4 for driving the pushing mechanism 3 to slide, and the driving mechanism 4 includes a driving handle 42, a rocker arm support block 41, a driving rocker arm 43, a driving cam 44 and a rectangular driving plate 45. The rocker arm support block 41 is arranged at one end of the supporting base plate 1, and the driving shaft of the driving handle 42 passes through the rocker arm support block 41 and is connected to the driving rocker arm 43. The end of the driving rocker arm 43 is rotatably provided with a driving cam 44, and the left ends of the pushing guide plate 31, the column boss 32 and the elliptical guide plate 33 are all fixedly connected to the rectangular driving plate 45, and the surface of the driving cam 44 is slidably connected to the driving slide groove 46 on the surface of the rectangular driving plate 45, and the driving cam 44 can also The driving handle 42 is configured to be rotated relative to the driving shaft end of the driving handle 42. It should be noted that the driving rocker arm 43 is perpendicular to the rectangular driving plate 45, and the length of the driving handle 42 is at least twice that of the driving rocker arm 43, which can save more effort. After such a setting, the user can rotate the driving handle 42, and the driving shaft of the driving handle 42 can drive the driving rocker arm 43 to rotate. During the rotation of the driving rocker arm 43, the driving cam 44 will rotate relative to the end of the driving rocker arm 43 and slide inside the driving slide groove 46. Then, the movement change of the driving cam 44 in the vertical direction of the driving slide groove 46 will cause the rectangular driving plate 45 to move left and right. When the rectangular driving plate 45 is displaced, it will drive the guide plate 31, the cylindrical boss 32 and the elliptical guide plate 33 to move.

[0025] Working principle and usage of this utility model:

[0026] The entire hand-cranked bullet press adopts the cam principle: the user first places a number of bullets inside the first magazine 52, and the bullets will slide along the inner wall of the first magazine 52 toward the guide magazine 54. Each bullet coming out of the discharge port of the first magazine 52 will fall into the inside of the guide magazine 54 and stack up. Then, the second pressing plate 23 is rotated relative to the first pressing plate 21. After the rotation, a number of bullet chains 6 are placed on the surface of the supporting bottom plate 1. Then, the second pressing plate 23 is rotated in the opposite direction. After the rotation is completed, the locking plate 28 is rotated relative to the locking support block 26 so that the locking notch 29 is stuck in the side wall of the locking boss 50. Since the elastic pressing plate 24 has a certain elasticity, the several bullet chains 6 located under the second pressing plate 23 will be pressed by the elastic pressing plate 24. However, at this time, the bullet chains 6 are not in a completely immovable state. It is just that a certain force is required to pull the several bullet chains 6 to move. At this time, the pressed bullet chains 6 are allowed to advance into the interior of the bullet chain 6. Then, the driving handle 42 is rotated, and the driving shaft of the driving handle 42 can drive The driving rocker arm 43 is driven to rotate. During the rotation of the driving rocker arm 43, the driving cam 44 rotates relative to the end of the driving rocker arm 43 and slides inside the driving slide 46. Then, the vertical movement of the driving cam 44 in the driving slide 46 causes the rectangular driving plate 45 to move to the left. When the rectangular driving plate 45 moves, it drives the guide plate 31, the column boss 32 and the elliptical guide plate 33 to move to the left. Then, the surface of the elliptical guide plate 33 supports the bullet at the bottom of the guide chamber 54. Gradually disappears. At this time, when the bullet inside the guide chamber 54 falls down, the right side wall of the elliptical guide plate 33 can limit the tail of the bullet from falling, and only allows the bullet head to slide down first, which is equivalent to correcting the direction of the entire bullet. Then, the entire bullet will slide down along the inclined surface 532 until it slides into the inside of the guide chute 11. Then, in the same way, the driving handle 42 is used to push the guide plate 31 to drive the elliptical guide plate 33 to slide to the right. The right end of the elliptical guide plate 33 abuts against the tail of the bullet and loads the entire bullet into the inside of the ammunition belt 6.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A hand-cranked propeller, comprising a supporting base plate (1), characterized in that: One end of the support base plate (1) is provided with a pressing mechanism (2) for pressing the ammunition belt (6), a middle portion of the support base plate (1) is provided with a pushing mechanism (3) for pushing bullets into the ammunition belt (6) and capable of sliding relative to the support base plate (1), and the other end of the support base plate (1) is provided with a driving mechanism (4) for driving the pushing mechanism (3) to slide, and a hopper mechanism (5) for storing bullets is mounted above the driving mechanism (4) and the pushing mechanism (3), and the bullets inside the hopper mechanism (5) can slide to the pushing end of the pushing mechanism (3).

2. The hand-cranked propeller according to claim 1, characterized in that: The clamping mechanism (2) includes a first clamping plate (21), a first rotating shaft (22), a second clamping plate (23), an elastic clamping plate (24) and a locking structure, wherein one end of the first clamping plate (21) is connected to the end of the supporting base plate (1), and the other end of the first clamping plate (21) is connected to the second clamping plate (23) via the first rotating shaft (22). The surface of the second clamping plate (23) is provided with an elastic clamping plate (24) and a rectangular groove (25), and the elastic clamping plate (24) is pressed against a plurality of elastic chains (6) at the bottom of the second clamping plate (23). A locking structure for limiting the rotation of the second clamping plate (23) is also provided between the second clamping plate (23) and the hopper mechanism (5).

3. The hand-cranked propeller according to claim 2, characterized in that: The locking structure includes a locking support block (26), a second rotating shaft (27) and a locking plate (28), one end of the locking support block (26) is connected to the surface of the second pressing plate (23), and the other end is rotatably connected to the locking plate (28) through the second rotating shaft (27), and a locking notch (29) is provided on the surface of the locking plate (28), and a locking boss (50) is provided on one side of the hopper mechanism (5), and the locking notch (29) can abut against the side wall of the locking boss (50).

4. The hand-cranked propeller according to claim 3, characterized in that: The silo mechanism (5) comprises a silo support column (51), a first silo (52), a guide silo (54) and a second silo (53). One end of the silo support column (51) is connected to the surface of the supporting base plate (1), and the other end is connected to the first silo (52). A guide silo (54) is provided between the discharge port of the first silo (52) and the interior of the second silo (53). A plurality of bullets can be stacked inside the guide silo (54) in the vertical direction, and the width and length of the cross-sectional area of ​​the guide silo (54) in the horizontal direction can only be adapted to one bullet.

5. The hand-cranked propeller according to claim 4, characterized in that: The interior of the second hopper (53) is provided with a plurality of horizontal surfaces (531) and inclined surfaces (532). One side of the guide hopper (54) is connected to the surface of the horizontal surface (531), and the other side is connected to the discharge port of the first hopper (52). There is a gap between the bottoms of the inclined surfaces (532) and the gap can allow the pushing mechanism (3) to slide, and the bullet falls into the gap between the bottoms of the inclined surfaces (532).

6. The hand-cranked propeller according to claim 5, characterized in that: The pushing mechanism (3) includes a pushing guide plate (31) and a column boss (32). The surface of the supporting base plate (1) is provided with a guide slot (11). The bottom of the pushing guide plate (31) is slidably connected to the inside of the guide slot (11). A column boss (32) is provided above the middle of the pushing guide plate (31) and close to the surface of the guide slot (11). The width of the column boss (32) is adapted to the gap between the bottoms of the inclined surfaces (532). When the pushing guide plate (31) slides, the column boss (32) can push the bullet into the inside of the bullet belt (6).

7. The hand-cranked propeller according to claim 6, characterized in that: An elliptical guide plate (33) is provided on the top of the pushing guide plate (31), and the side wall of the elliptical guide plate (33) can guide the direction of the bullet.

8. The hand-cranked propeller according to claim 7, characterized in that: The driving mechanism (4) comprises a driving handle (42), a rocker arm support block (41), a driving rocker arm (43), a driving cam (44) and a rectangular driving plate (45), wherein the rocker arm support block (41) is arranged at one end of the supporting base plate (1), a driving shaft of the driving handle (42) passes through the rocker arm support block (41) and is connected to the driving rocker arm (43), an end of the driving rocker arm (43) is rotatably provided with a driving cam (44), one end of the pushing guide plate (31), the column boss (32) and the elliptical guide plate (33) are all connected to the rectangular driving plate (45), a surface of the driving cam (44) is slidably connected to a driving slot (46) on the surface of the rectangular driving plate (45), and the driving rocker arm (43) is perpendicular to the rectangular driving plate (45).

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