An automatic scabbard crossbow

Abstract

This invention discloses an automatic sheathed crossbow, relating to the field of sheathed crossbow technology. To achieve automatic ejection of the crossbow arm, it specifically includes a crossbow body, a crossbow mechanism, and a crossbow arm. The crossbow mechanism is located at the top of the crossbow body, and the end of the crossbow arm is hinged to the crossbow body. An ejection mechanism is located on the side of the crossbow arm near the crossbow body. A knife insertion hole is opened at the end of the crossbow body away from the ejection mechanism. Cylindrical latches are respectively provided on the outer walls of the crossbow body near both sides of the crossbow mechanism. A locking post is provided at the end of the crossbow arm away from the crossbow body, and the locking post is adapted to the cylindrical latches. A crossbow rope is fixedly connected to the side of the crossbow arm near the locking post, and the crossbow rope is sleeved on the firing end of the crossbow mechanism. The ejection mechanism includes a telescopic plate, a mounting plate, a T-shaped plate, a telescopic spring, a protruding post, a return spring, and a locking hole. A sliding hole is opened on the side of the crossbow body near the crossbow arm, and a fixing hole is opened on the outer wall of the crossbow body below the sliding hole. This invention solves the problem that, in the event of an emergency during marching, the user can promptly complete the firing action, improving firing efficiency.

Description

Technical Field

[0001] This invention relates to the field of crossbow technology, and more particularly to an automatic crossbow. Background Technology

[0002] In existing technology, the primary purpose of military daggers is, of course, for close-quarters combat to kill enemy personnel. Therefore, they are generally non-folding to enhance their sturdiness; the handle is inlaid with wood and features raised and recessed sections to prevent it from falling off; and blood grooves are made in the blade for easy extraction. Because the situation is complex and resupply is relatively difficult deep behind enemy lines, special forces soldiers often need to obtain wild animals and plants to replenish their energy in the field.

[0003] A search revealed Chinese patent application CN2022216881038, which discloses a multi-functional scabbard crossbow. The scabbard body has steel plate storage slots on both outer walls and a crossbow slot on the top outer wall. One end of the scabbard body has a locking protrusion, and a crossbow guard plate is engaged with the outer walls of the protrusion. Aiming holes are located on the top and bottom sides of the crossbow guard plate. Fixing holes are located on both sides of the scabbard body near the crossbow guard plate, and a crossbow mechanism is installed within these holes. Steel plates are connected to both sides of the scabbard body away from the crossbow guard plate via locking components. One end of each steel plate has a rope hole, and high-elasticity rope is wound and engaged with the rope holes at both ends of the steel plates and the trigger end of the crossbow mechanism. The multi-functional scabbard crossbow described in the above patent has the following shortcomings:

[0004] Although the overall device combines the functions of a knife and a crossbow, the high-elastic rope requires manual pulling when combined with the crossbow mechanism and steel plate. During marches, unexpected situations often occur, and the way the crossbow arm unfolds will affect the user's shooting efficiency and miss opportunities. Therefore, there is an urgent need for an automatic knife-sheath crossbow. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic sheathed crossbow.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic sheathed crossbow includes a crossbow body, a crossbow mechanism, and a crossbow arm. The crossbow mechanism is located on the top of the crossbow body, and the end of the crossbow arm is connected to the crossbow body via a hinge. A catapult mechanism is provided on the side of the crossbow arm near the crossbow body, and a knife insertion hole is provided on the end of the crossbow body away from the catapult mechanism. Cylindrical buckles are provided on the outer walls of the crossbow body near both sides of the crossbow mechanism, and a locking post is provided on the end of the crossbow arm away from the crossbow body. The locking post is adapted to the cylindrical buckles. A crossbow rope is fixedly connected to the side of the crossbow arm near the locking post, and the crossbow rope is sleeved on the firing end of the crossbow mechanism.

[0008] Preferably, the launching mechanism includes a telescopic plate, a mounting plate, a T-shaped plate, a telescopic spring, a protruding post, a return spring, and a locking hole. A sliding hole is opened on the side of the crossbow body near the crossbow arm, and a fixing hole is opened on the outer wall of the crossbow body near the sliding hole.

[0009] Mounting plate, the mounting plate is set in the fixing hole, and the bottom outer wall of the mounting plate has a guide hole;

[0010] The locking holes are located on the top of the mounting plate.

[0011] Furthermore: one end of the reset spring is welded to one side of the inner wall of the mounting plate;

[0012] The T-shaped plate is slidably connected in the guide hole, and the other end of the return spring is fixedly connected to one side of the T-shaped plate. The T-shaped plate has a cavity near the inside of the mounting plate.

[0013] The protruding post is engaged in the locking hole, and the bottom end of the protruding post extends and retracts vertically in the cavity through a telescopic spring.

[0014] The telescopic plate has one end fixedly connected to the end of the T-shaped plate near the mounting plate. The telescopic plate and the sliding hole form a sliding fit, and a spring is installed inside the telescopic plate.

[0015] Based on the aforementioned solution: the telescopic plate can be replaced with a tension spring, and the crossbow arm and the end of the T-shaped plate are provided with retaining rings, and the two ends of the tension spring are provided with hooks, and the hooks are fixedly connected to the retaining rings.

[0016] A better embodiment of the aforementioned scheme is that the ejection mechanism includes a torsion spring hinge, a locking pin, a locking plate, a Z-shaped plate, and a connecting spring, and the crossbow body has a mounting hole on the side near the inner end of the crossbow arm.

[0017] A torsion spring hinge is installed in the mounting hole and is connected to one side of the crossbow arm by bolts.

[0018] As a further embodiment of the present invention: the snap-fit ​​post is disposed on one side of one of the two hinges of the torsion spring hinge, the snap plate is slidably connected to the other hinge side, and the snap-fit ​​post is adapted to the snap plate;

[0019] Z-shaped plate, the Z-shaped plate is set on one side of the pallet;

[0020] A connecting spring is fixedly connected to one side of the two Z-shaped plates.

[0021] Meanwhile, the ejection mechanism includes a fixed plate, a fixed torsion spring, a first disc, a second disc, a rotating shaft, a locking bar, and a limiting plate;

[0022] A fixing plate is installed on one side of the crossbow arm;

[0023] The second disc is fixed in the mounting hole by a limiting plate;

[0024] A rotating shaft that passes through the bottom of the mounting hole;

[0025] The first disc is fitted onto the top circumference of the rotating shaft.

[0026] As a preferred embodiment of the present invention, the first disk and the second disk are respectively provided with a first snap-fit ​​hole and a second snap-fit ​​hole.

[0027] Meanwhile, the first snap-fit ​​hole and the second snap-fit ​​hole are respectively provided with two grooves and three grooves.

[0028] As a preferred embodiment of the present invention: the two locking strips are fixed on the circumference of the rotating shaft, the locking strips are adapted to the groove, the top inner wall of the mounting hole is provided with a fixing groove, the end of the fixing torsion spring is welded to the inner wall of the fixing groove, and the bottom end of the fixing torsion spring is welded to the top end of the rotating shaft.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. This automatic sheathed crossbow allows the user to attach the crossbow body to the firing end of the crossbow mechanism when encountering an emergency during march. By activating the ejection mechanism, the crossbow arm can be ejected from the holes on both sides of the crossbow body, thus achieving automatic ejection of the crossbow arm. This solves the problem of the user being able to complete the shooting action in time when an emergency occurs during march, improving shooting efficiency.

[0031] 2. This automatic sheathed crossbow, by pressing the top of the protruding post, causes the telescopic spring to retract. At this time, the retracting return spring drives the T-shaped plate to slide in the guide hole, and drives the telescopic plate to slide towards the end of the crossbow body in the sliding hole. Thus, through the telescopic plate and its internal spring, the crossbow arm can be quickly ejected from both sides of the crossbow body, realizing the automatic ejection of the crossbow arm. This solves the problem of slow manual extension of the crossbow arm, improves the efficiency of the crossbow mechanism driving the crossbow rope to launch crossbow bolts, ensures the efficiency of responding to emergencies, and improves practicality.

[0032] 3. This automatic sheathed crossbow, by pressing the top of the protruding post, causes the telescopic spring to retract. At this time, the retracting return spring drives the T-shaped plate to slide in the guide hole. The tension spring realizes the efficiency of automatic crossbow arm ejection, increases the pulling force of crossbow arm ejection, and improves the quality of crossbow arm extension.

[0033] 4. This automatic sheathed crossbow, by squeezing two Z-shaped plates, causes the locking plate to shift horizontally by one distance. At this time, the locking pin separates from the locking plate, causing the torsion spring hinge to change from 90 degrees to 180 degrees, thereby driving the crossbow arm to pop out from the crossbow body, thus realizing the automatic pop-out of the crossbow arm. As a result, the overall structure is simple and convenient to install, reduces the processing cost, and has high overall ejection efficiency.

[0034] 5. This automatic sheathed crossbow, when the fixed plate and crossbow arm are retracted, rotates the crossbow arm, causing the first disc to rotate 90 degrees. At this time, the two grooves of the first locking hole in the first disc are perpendicularly aligned with two grooves of the second disc near the limiting plate. By pressing the rotating shaft, the fixed torsion spring is retracted, and the locking strip on the circumference of the rotating shaft is engaged with the grooves in the first and second discs, thus completing the retraction and fixation of the crossbow arm. When the crossbow arm needs to be extended, the rotating shaft is pressed again and released, causing the groove in the first disc to disengage from the locking strip. The retracted fixed torsion spring then drives the rotating shaft and the first disc on its circumference to rotate, thereby automatically ejecting the crossbow arm. Thus, the crossbow arm is automatically ejected, the overall structure is stable, easy to install, remove and replace, reduces the maintenance cost of the crossbow arm, and has a low failure rate. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of the automatic sheathed crossbow proposed in this invention;

[0036] Figure 2 This is a schematic diagram of the ejection mechanism structure of Embodiment 1 of the automatic sheathed crossbow proposed in this invention;

[0037] Figure 3 This is a schematic diagram of the main structure of Embodiment 2 of the automatic sheathed crossbow proposed in this invention;

[0038] Figure 4 This is a top view of embodiment 3 of the automatic sheathed crossbow proposed in this invention;

[0039] Figure 5 This is a schematic diagram of the ejection mechanism structure of Embodiment 3 of the automatic sheathed crossbow proposed in this invention;

[0040] Figure 6 This is a schematic diagram of the main structure of embodiment 4 of the automatic sheathed crossbow proposed in this invention;

[0041] Figure 7 This is a schematic diagram of the ejection mechanism structure of Embodiment 4 of an automatic sheathed crossbow proposed in this invention;

[0042] Figure 8 This is a schematic diagram of the explosive structure of the launching mechanism in Embodiment 4 of the automatic sheathed crossbow proposed in this invention.

[0043] In the diagram: 1. Knife insertion hole; 2. Crossbow body; 3. Crossbow mechanism; 4. Cylindrical buckle; 5. Sliding hole; 6. Telescopic plate; 7. Crossbow arm; 8. Locking post; 9. Mounting plate; 10. T-shaped plate; 11. Telescopic spring; 12. Protruding post; 13. Return spring; 14. Locking hole; 15. Tension spring; 16. Mounting hole; 17. Torsion spring hinge; 18. Locking post; 19. Locking plate; 20. Z-shaped plate; 21. Connecting spring; 22. Fixing plate; 23. Fixing torsion spring; 24. First disc; 25. Second disc; 26. Rotating shaft; 27. Locking strip; 28. Second locking hole; 29. ​​First locking hole; 30. Limiting plate. Detailed Implementation

[0044] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0045] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0046] Example 1: An automatic scabbard crossbow, such as Figure 1-2 As shown, the crossbow includes a crossbow body 2, a crossbow mechanism 3, and a crossbow arm 7. The crossbow mechanism 3 is located on the top of the crossbow body 2, and the end of the crossbow arm 7 is connected to the crossbow body 2 by a hinge. A catapult mechanism is provided on the side of the crossbow arm 7 near the crossbow body 2, and a knife insertion hole 1 is opened on the end of the crossbow body 2 away from the catapult mechanism. Cylindrical buckles 4 are provided on the outer walls of the crossbow body 2 near the two sides of the crossbow mechanism 3, and a locking post 8 is connected to the end of the crossbow arm 7 away from the crossbow body 2 by a thread. The locking post 8 is adapted to the cylindrical buckle 4. A crossbow rope is fixedly connected to the side of the crossbow arm 7 near the locking post 8, and the crossbow rope is sleeved on the firing end of the crossbow mechanism 3.

[0047] When the user encounters an emergency during a march, the crossbow body is fitted onto the firing end of the crossbow mechanism 3, and by activating the ejection mechanism, the crossbow arm 7 can be ejected from the holes on both sides of the crossbow body 2. This achieves automatic ejection of the crossbow arm 7, which solves the problem of the user being able to complete the shooting action in time when an emergency occurs during the march, thus improving the shooting efficiency.

[0048] To facilitate the automatic ejection of the crossbow arm 7; such as Figure 2 As shown, the launching mechanism includes a telescopic plate 6, a mounting plate 9, a T-shaped plate 10, a telescopic spring 11, a protruding post 12, a return spring 13, and a locking hole 14. The crossbow body 2 has a sliding hole 5 on the side near the crossbow arm 7, and a fixing hole is opened on the outer wall of the crossbow body 2 near the sliding hole 5.

[0049] Mounting plate 9 is fixed in the fixing hole by bolts, and the bottom outer wall of mounting plate 9 has guide holes;

[0050] Slot 14 is located on the top of mounting plate 9;

[0051] The reset spring 13 has one end welded to one side of the inner wall of the mounting plate 9.

[0052] T-shaped plate 10 is slidably connected in the guide hole, and the other end of the return spring 13 is fixedly connected to one side of the T-shaped plate 10. The T-shaped plate 10 is opened in a cavity near the inside of the mounting plate 9.

[0053] The protruding post 12 is engaged in the locking hole 14, and the bottom end of the protruding post 12 extends and retracts vertically in the cavity through the telescopic spring 11.

[0054] Telescopic plate 6, one end of which is fixedly connected to the end of T-shaped plate 10 near mounting plate 9, telescopic plate 6 and sliding hole 5 form a sliding fit, and spring is provided in telescopic plate 6 to realize elastic extension and retraction;

[0055] By pressing the top of the protrusion 12, the telescopic spring 11 retracts. At this time, the return spring 13 retracts, causing the T-shaped plate 10 to slide in the guide hole and the telescopic plate 6 to slide towards the end of the crossbow body 2 in the sliding hole 5. Thus, through the telescopic plate 6 and its internal spring, the crossbow arm 7 quickly pops out from both sides of the crossbow body 2, realizing the automatic pop-out of the crossbow arm 7. This solves the problem of slow manual deployment of the crossbow arm 7, improves the efficiency of the crossbow mechanism 3 in driving the crossbow rope to launch the crossbow bolt, ensures the efficiency of responding to emergencies, and improves practicality.

[0056] In this embodiment, when the user encounters an emergency during marching, the crossbow body is placed on the firing end of the crossbow mechanism 3. By pressing the top of the protrusion 12, the telescopic spring 11 is retracted. At this time, the return spring 13 retracts, causing the T-shaped plate 10 to slide in the guide hole, and causing the telescopic plate 6 to slide towards the end of the crossbow body 2 in the sliding hole 5. Thus, through the telescopic plate 6 and its internal spring, the crossbow arm 7 is quickly ejected from both sides of the crossbow body 2, realizing the automatic ejection of the crossbow arm 7.

[0057] Example 2: An automatic scabbard crossbow, such as Figure 2 As shown, in order to achieve the automatic ejection of the crossbow arm 7, this embodiment makes the following improvements based on embodiment 1: the telescopic plate 6 can be replaced with a tension spring 15, and the ends of the crossbow arm 7 and the T-shaped plate 10 are provided with retaining rings, and the two ends of the tension spring 15 are provided with hooks, and the hooks are fixedly connected to the retaining rings.

[0058] The tension spring 15 improves the efficiency of automatic extension of the crossbow arm 7, increases the pulling force of the crossbow arm 7 during extension, and improves the quality of the extension of the crossbow arm 7.

[0059] In this embodiment, by pressing the top of the protrusion 12, the telescopic spring 11 is retracted. At this time, the return spring 13 retracts and drives the T-shaped plate 10 to slide in the guide hole. Thus, the tension spring 15 causes the crossbow arm 7 to quickly pop out from both sides of the crossbow body 2, realizing the automatic pop-out of the crossbow arm 7.

[0060] Example 3: An automatic sheathed crossbow, such as Figure 4-5 As shown, in order to achieve automatic ejection of the crossbow arm 7, this embodiment makes the following improvements based on embodiment 1: the ejection mechanism includes a torsion spring hinge 17, a locking post 18, a locking plate 19, a Z-shaped plate 20 and a connecting spring 21, and the crossbow body 2 has a mounting hole 16 on the side near the inner end of the crossbow arm 7.

[0061] Torsion spring hinge 17 is fixed in the mounting hole 16 by bolts, and the torsion spring hinge 17 is connected to one side of the crossbow arm 7 by bolts.

[0062] The snap-fit ​​post 18 and the snap-fit ​​plate 19 are provided. The snap-fit ​​post 18 is located on one side of one of the two hinges of the torsion spring hinge 17, and the snap-fit ​​plate 19 is slidably connected to the other hinge side. The snap-fit ​​post 18 and the snap-fit ​​plate 19 are adapted to each other.

[0063] Z-shaped plate 20, Z-shaped plate 20 is fixed to one side of clamping plate 19 by bolts;

[0064] Connecting spring 21 is fixedly connected to the opposite side of the two Z-shaped plates 20;

[0065] In this embodiment, by squeezing the two Z-shaped plates 20, the clamping plate 19 is horizontally displaced by one distance. At this time, the clamping post 18 separates from the clamping plate 19, causing the torsion spring hinge 17 to change from 90 degrees to 180 degrees, thereby driving the crossbow arm 7 to pop out from the crossbow body 2, thus realizing the automatic pop-out of the crossbow arm 7. As a result, the overall structure is simple and convenient to install, reduces the processing cost, and has high overall ejection efficiency.

[0066] Example 4: An automatic scabbard crossbow, such as Figure 6-8 As shown, in order to achieve the automatic ejection of the crossbow arm 7, this embodiment makes the following improvements based on embodiment 3: the ejection mechanism includes a fixed plate 22, a fixed torsion spring 23, a first disc 24, a second disc 25, a rotating shaft 26, a locking bar 27, and a limiting plate 30;

[0067] Fixing plate 22 is bolted to one side of crossbow arm 7;

[0068] The second disc 25 is fixed in the mounting hole 16 by the limiting plate 30;

[0069] Rotating shaft 26, rotating shaft 26 passes through the bottom of mounting hole 16;

[0070] The first disc 24 is fitted onto the top circumference of the rotating shaft 26;

[0071] The first disk 24 and the second disk 25 are respectively provided with a first snap-fit ​​hole 29 and a second snap-fit ​​hole 28, and the first snap-fit ​​hole 29 and the second snap-fit ​​hole 28 are respectively provided with two grooves and three grooves.

[0072] Two locking strips 27 are fixed on the circumference of the rotating shaft 26, and the locking strips 27 are adapted to the groove;

[0073] The fixed torsion spring 23 has a fixing groove on the top inner wall of the mounting hole 16. The end of the fixed torsion spring 23 is welded to the inner wall of the fixing groove end, and the bottom end of the fixed torsion spring 23 is welded to the top end of the rotating shaft 26.

[0074] In this embodiment, when the fixing plate 22 and the crossbow arm 7 are retracted, the crossbow arm 7 is rotated, causing the first disc 24 to rotate 90 degrees. At this time, the two grooves of the first locking hole 29 in the first disc 24 are perpendicularly aligned with two grooves of the second disc 25 near the limiting plate 30. By pressing the rotating shaft 26, the fixing torsion spring 23 is retracted, and the locking strip 27 on the circumference of the rotating shaft 26 is inserted into the grooves in the first disc 24 and the second disc 25, thus completing the retraction and fixing of the crossbow arm 7.

[0075] When the crossbow arm 7 needs to be extended, the rotating shaft 26 is squeezed and then released, causing the inner groove of the first disc 24 to disengage from the retaining strip 27. The retracted fixed torsion spring 23 then drives the rotating shaft 26 and the first disc 24 on its circumference to rotate, thereby causing the crossbow arm 7 to automatically pop out. In this way, the automatic pop-out of the crossbow arm 7 is achieved. The overall structure is stable in ejection and easy to install, remove and replace, reducing the maintenance cost of the crossbow arm 7 and the failure rate is low.

[0076] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic sheathed crossbow, comprising a crossbow body (2), a crossbow mechanism (3), and a crossbow arm (7), characterized in that, The crossbow (3) is located on the top of the crossbow body (2), and the end of the crossbow arm (7) is connected to the crossbow body (2) by a hinge. The side of the crossbow arm (7) near the crossbow body (2) is provided with a catapult mechanism, and the end of the crossbow body (2) away from the catapult mechanism is provided with a knife insertion hole (1). The outer walls of the crossbow body (2) near the crossbow (3) are respectively provided with cylindrical buckles (4), and the end of the crossbow arm (7) away from the crossbow body (2) is provided with a locking post (8). The locking post (8) is adapted to the cylindrical buckle (4). The side of the crossbow arm (7) near the locking post (8) is fixedly connected with a crossbow rope, and the crossbow rope is sleeved on the firing end of the crossbow (3). The ejection mechanism includes a fixed plate (22), a fixed torsion spring (23), a first disc (24), a second disc (25), a rotating shaft (26), a locking bar (27), and a limiting plate (30). A fixing plate (22) is provided on one side of the crossbow arm (7); The second disc (25) is fixed in the mounting hole by a limiting plate (30); A rotating shaft (26) extends through the bottom of the mounting hole; The first disk (24) is fitted onto the top circumference of the rotating shaft (26); The first disc (24) and the second disc (25) are respectively provided with a first snap-fit ​​hole (29) and a second snap-fit ​​hole (28); the first snap-fit ​​hole (29) and the second snap-fit ​​hole (28) are respectively provided with two grooves and three grooves; the two snap-fit ​​strips (27) are fixed on the circumference of the rotating shaft (26), the snap-fit ​​strips (27) are adapted to the grooves, the top inner wall of the mounting hole is provided with a fixing groove, the end of the fixing torsion spring (23) is welded to the inner wall of the end of the fixing groove, and the bottom end of the fixing torsion spring (23) is welded to the top end of the rotating shaft (26).

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