Automatic filling type electric repeating crossbow

Abstract

The invention discloses an automatic filling type electric repeating crossbow. The crossbow case is provided with a trigger assembly and a power supply module, the arrow case is installed below the crossbow case and provided with a crossbow arrow, the rear support is arranged on the rear portion of the crossbow case and provided with an electric string opening mechanism, the crossbow arm is arranged on the front portion of the crossbow case, and the crossbow head is arranged on the front portion of the crossbow arm. Arrow grooves for the crossbow arrow to pass through are formed in the crossbow arm and the crossbow head; sliding grooves are formed in the crossbow case and the crossbow arm, a string hooking device used for hooking a crossbow string and capable of sliding in the crossbow string is arranged in the sliding grooves, and an arrow pushing hook is arranged on the lower portion of the string hooking device. The device has the advantages that the filling and shooting efficiency is greatly improved in an automatic arrow supplying and winding mode, and more labor is saved; the separated arrow shell is additionally arranged on the front portion of the crossbow arrow, an arrow head is protected, the positioning effect is provided for the crossbow arrow in an arrow box, and filling and arrow supplying are more convenient; and through the cooperation of the shell throwing window and the arrow shell separating guide rail which are obliquely designed, the shell removing efficiency of the crossbow arrow is higher, and blocking in the launching process is reduced.

Description

Technical Field

[0001] The invention relates to a crossbow, in particular to an automatic loading electric continuous-firing crossbow. Background Art

[0002] Crossbows play a wide and important role in military, sports and hunting. Existing crossbows are generally manually wound, and the winding speed depends on the crossbow bow tension and the crossbow arm stroke. Therefore, the shooting speed is slow, generally 2 rounds per minute, and the force required to draw the string is large, which requires high physical strength from the shooter. At the same time, the crossbows of existing crossbows are relatively large in size, with a length of up to 800 mm, which is inconvenient to carry. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an automatic loading electric continuous-firing crossbow which is labor-saving, portable, has a fast loading speed and a high shooting frequency.

[0004] In order to solve the above technical problems, the automatic loading electric rapid-fire crossbow of the present invention comprises a crossbow receiver with a trigger assembly and a power supply module, a quiver containing crossbow arrows installed below the crossbow receiver, a back support with an electric string tensioning mechanism arranged at the rear of the crossbow receiver, a crossbow arm arranged at the front of the crossbow receiver, and a crossbow head arranged at the front of the crossbow arm; arrow grooves for the crossbow arrows to pass through are formed inside the crossbow arm and the crossbow head; sliding grooves are formed on the crossbow receiver and the crossbow arm, and a string hook for hooking the crossbow string and being able to slide therein is provided in the sliding groove, and an arrow pusher for pushing the crossbow arrow is provided at the lower part of the string hook; the electric string tensioning mechanism pulls the string hook with the energy support of the power supply module.

[0005] The electric string tensioning mechanism includes a motor arranged inside the rear support, a worm located at the output end of the motor, a central axis passing through the rear support, a worm wheel fixedly mounted on the central axis and matching with the worm wheel, a pulley seat sleeved on the central axis, and a pulley sleeved on the pulley seat; an articulated seat is arranged on the inner wall of the rear support, a clutch lever is arranged on the articulated seat, the middle part of the clutch lever is hinged to the articulated seat through an articulated shaft, one end of the clutch lever is arranged with an electromagnet, and the other end is sleeved on the central axis; a push plate sleeved on the central axis is arranged between the clutch lever and the worm wheel; a through hole is opened on the worm wheel, and a column matching with it is arranged on the push plate; a pulley compression spring is arranged between the pulley seat and the inner wall of the rear support; a protrusion is arranged on the pulley, and a groove corresponding to it is arranged on the worm wheel; one end of the central axis extends to the outside of the rear support and is fixedly connected with a hand-cranked device.

[0006] The trigger assembly includes a trigger bracket installed in the crossbow receiver, a string stop installed in the trigger bracket and capable of moving up and down, a trigger hinged in the trigger bracket, and a transmission lever arranged between the string stop and the trigger; the middle part of the transmission lever is hinged on the inner wall of the trigger bracket, one end of the transmission lever is pressed on the lower part of the string stop, and the other end is pressed on the upper part of the trigger; the bottom end of the string stop is connected to the bottom surface of the trigger bracket through a string stop compression spring; the top and bottom of the trigger bracket are respectively provided with through grooves for the movement of the string stop and the trigger; an electromagnet switch is arranged on the side of the trigger, and the electromagnet switch is powered by the power supply module to control the opening and closing of the electromagnet.

[0007] The crossbow receiver is provided with a rear grip and a motor switch; the power supply module is installed inside the rear grip; the motor switch is powered by the power supply module to control the opening and closing of the motor.

[0008] The crossbow head comprises a crossbow head bracket, two crossbow pieces symmetrically hinged on both sides of the crossbow head bracket, and two torsion springs symmetrically fixedly arranged on both sides of the crossbow head bracket; the other end of the torsion spring is fixedly connected to the crossbow piece.

[0009] The crossbow arrow comprises an arrow body, an arrowhead arranged at the front end of the arrow body and an arrow tail groove arranged at the rear end of the arrow body; the tail part of the arrow body is provided with a tail wing, and the front part is provided with an arrow shell.

[0010] The arrow case is a split arrow case that can be divided into two halves, and a through hole for clamping the crossbow arrow is opened in the center of the arrow case; an arrow case guide groove is opened on the arrow case, and a guiding inclined surface is arranged between the arrow case guide groove and the front end surface of the arrow case.

[0011] The quiver comprises a quiver shell and a top arrow plate located in the quiver shell and capable of moving up and down; a limit plate is arranged on the top of the quiver shell; the top arrow plate divides the interior of the quiver shell into an arrow storage portion and a movable portion; a return spring is arranged in the movable portion, one end of the return spring is connected to the top arrow plate, and the other end is connected to the inner bottom surface of the quiver shell; a locking groove is opened on the side of the quiver shell, and a quiver operating button with a corresponding and retractable locking pin is arranged on the crossbow receiver.

[0012] An arrow box guide rail is arranged in the arrow box shell, and a matching arrow guide groove is formed on the arrow top plate.

[0013] A shell ejection window is provided at the tail of the crossbow arm, and an arrow shell separation guide rail is arranged in the shell ejection window.

[0014] The invention has the advantages of replacing the traditional manual arrow feeding and stringing with the automatic arrow feeding of the arrow box and the motor stringing, which greatly improves the efficiency of loading and shooting and is more labor-saving; the worm gear transmission is used for stringing, and the transmission performance is stable and the transmission ratio is large; the worm gear is also connected to a hand-cranked device to prevent the crossbow from being unable to shoot due to power supply problems; the crossbow bow and the torsion spring work together to replace the traditional use of only the crossbow bow to realize energy storage, and the length of the crossbow bow can be shortened, making the crossbow more portable as a whole; the pulley is installed on the central axis through the pulley seat, and compared with direct installation, its rotation performance is avoided from being affected by the compression spring and the column, so that the string hook moves more smoothly; a separate arrow shell is added to the front of the crossbow arrow to provide protection for the arrow head and provide positioning for the crossbow arrow in the arrow box, which is more convenient for loading and arrow feeding; multiple guiding slopes are provided to make the movement of components smoother; the arrow box guide rail makes the top arrow plate move more steadily, thereby ensuring the stability of the arrow feeding of the arrow box; the cooperation of the inclined shell ejection window and the arrow shell separation guide rail makes the crossbow arrow shelling efficiency higher and reduces the jamming during the shooting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a rear view of the present invention; Figure 4 This is a three-dimensional diagram of the present invention after removing part of the housing; Figure 5 is a three-dimensional diagram of the string hook of the present invention; Figure 6 It is a forward three-dimensional exploded view of the electric string tensioning mechanism of the present invention; Figure 7 It is a back-view three-dimensional exploded view of the electric string tensioning mechanism of the present invention; Figure 8 is a schematic diagram of a trigger assembly of the present invention; Fig. 9 A three-dimensional diagram of a crossbow head of the present invention; Fig.10 It is a three-dimensional enlarged view of the arrow box of the present invention; Fig.11 It is a three-dimensional exploded view of the crossbow arrow of the present invention. DETAILED DESCRIPTION

[0016] The automatic loading electric crossbow of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] like Figure 1 , 4As shown, the automatic loading electric rapid-fire crossbow of the present invention comprises a crossbow receiver 1 as an installation base, a rear grip 1-1 is formed at the lower part of the crossbow receiver 1, and a power supply module 1-3 is arranged in the rear grip 1-1 to provide energy support for the electric string tensioning mechanism.

[0018] like Figure 1 , 6 As shown in Figures 7 and 8, a rear support 3 for supporting is installed at the rear of the crossbow receiver 1. The electric string tensioning mechanism installed inside the rear support 3 includes a central shaft 3-3 that is set through. A worm wheel 3-4 is fixedly installed on the central shaft 3-3. The worm wheel 3-4 is meshed with a worm 3-2 driven by a motor 3-1. A pulley seat 3-5 is sleeved on one side of the worm wheel 3-4 on the central shaft 3-3. A pulley 3-6 is sleeved on the pulley seat 3-5. Two protrusions 3-11 are symmetrically arranged on the side of the pulley 3-6 facing the worm wheel 3-4. A groove 3-12 with a guide slope corresponding to the worm wheel 3-4 is opened on the worm wheel 3-4, so that the pulley 3-6 can rotate together with the worm wheel 3-4. A push plate 3-9 is sleeved on the other side of the worm wheel 3-4 on the central axis 3-3, and two symmetrical through holes are opened on the worm wheel 3-4. A column 3-10 matching with the push plate 3-9 is arranged on the push plate 3-9, and the column 3-10 passes through the through hole on the worm wheel 3-4 and contacts with the pulley seat 3-5. An articulated seat 3-14 is arranged on the inner wall of the rear support 3 near the push plate 3-9, and a clutch lever 3-7 is arranged on the articulated seat 3-14. The middle part of the clutch lever 3-7 is hinged on the articulated seat 3-14 through the hinge shaft 3-15, one end of which is opened with a through groove and sleeved on the central axis 3-3, located between the push plate 3-9 and the inner wall of the rear support 3, and the other end is in contact with the retractable magnetic column of the electromagnet 3-8 arranged on its side. A pulley compression spring 3-16 is arranged between the pulley seat 3-5 and the inner wall of the rear support 3, which is used to automatically reset the pulley 3-6. One end of the central axis 3-3 extends to the outside of the rear support 3 and is fixedly connected to a hand-cranked device 3-13, which is used to prevent the crossbow from being unable to shoot due to power supply problems.

[0019] like Figure 1 , 3As shown in Figures 8 and 8, a trigger assembly 8 is installed in the middle of the crossbow receiver 1. The trigger assembly 8 includes a trigger bracket 8-1. The trigger bracket 8-1 has through grooves for the movement of the string stopper 8-2 and the trigger 8-3 on the upper and lower sides. The U-shaped string stopper 8-2 with a guide slope on the top is installed in the trigger bracket 8-1 through a support member and can move up and down. The lower part of the string stopper 8-2 is connected to the inner bottom surface of the trigger bracket 8-1 through a string stopper compression spring 8-6. The trigger 8-3 is hinged to the inner wall of the trigger bracket 8-1. A transmission lever 8-4 is arranged between the string stopper 8-2 and the trigger 8-3. The middle part of the transmission lever 8-4 is hinged to the inner wall of the trigger bracket 8-1. One end of the transmission lever 8-4 is pressed on the lower part of the string stopper 8-2, and the other end is pressed on the upper part of the trigger 8-3. An electromagnet switch 8-5 is provided on the movable travel of the trigger 8-3, and the electromagnet switch 8-5 is powered by the power supply module 1-3 to control the opening and closing of the electromagnet 3-8, so that when the trigger 8-3 is pressed, the string stopper 8-2 moves down and the electromagnet switch 8-5 is turned on, and when the trigger 8-3 is released, the string stopper 8-2 moves up and the electromagnet switch 8-5 is turned off. A motor switch 1-2 is also provided on the side wall of the crossbow receiver 1 near the trigger assembly 8, and is powered by the power supply module 1-3 to control the opening and closing of the motor 3-1.

[0020] like Figure 1 , 5 As shown in Figure 10, a crossbow arm 4 is installed at the front part of the crossbow receiver 1, and a through sliding groove 7 is opened on the crossbow receiver 1 and the crossbow arm 4. A string hook 10 capable of sliding therein is arranged in the sliding groove 7. The front part of the string hook 10 is a string hook part for hooking the crossbow string, and the rear part is a string tensioning part for connecting the pulleys 3-6 in the electric string tensioning mechanism through a slide cable. Limiting strips are symmetrically arranged above and below to ensure its sliding stability, and an arrow pushing mechanism for pushing the crossbow arrow is also arranged below. The arrow pushing mechanism includes a U-shaped connecting plate with a through hole and a T-shaped arrow pushing hook 11 arranged therein and capable of moving up and down. The bottom of the arrow pushing hook 11 extends out through the through hole, and the crown is mounted in the cavity of the U-shaped connecting plate and is connected to the lower surface of the string hook 10 through a compression spring. The crossbow arm 4 has a slide groove for the arrow pushing mechanism to pass through and an arrow groove 6 for the crossbow arrow 9 to pass through, and a shell ejection window 4-1 is opened at the tail. The upper and lower surfaces of the shell ejection window 4-1 are both slopes, and an arrow shell separation guide rail 4-2 with a gradually increasing width is arranged therein.

[0021] like Fig.10 , 11As shown in the figure, the crossbow bolt 9 includes a bolt body 9-1, a replaceable arrowhead 9-2 installed at the front end of the bolt body 9-1, an arrow tail groove 9-3 opened at the tail end of the bolt body 9-1, and three tail fins 9-4 arranged at the tail of the bolt body 9-1. A split arrow shell 9-5 that can be divided into two halves is arranged at the front part of the bolt body 9-1. Convex columns and grooves that can be engaged with each other are respectively arranged at the joints of the two halves, and a through hole is opened in the center to realize the clamping effect on the crossbow bolt 9. Arrow shell guide grooves 9-6 with guiding inclined surfaces are respectively arranged above and below the arrow shell 9-5. The upper arrow shell guide groove 9-6 is matched with the arrow pushing hook 11 to make it easier to pass through during the return process. The lower arrow shell guide groove 9-6 is matched with the arrow shell separation guide rail 4-2 to make the separation process of the arrow shell 9-5 smoother. A groove matched with the outer shape of the tail fin 9-4 is also opened on the arrow shell separation guide rail 4-2 to play an additional guiding role in the movement of the crossbow bolt 9.

[0022] As Figure 1 , 9 shown in the figure, a crossbow head 5 is installed at the front part of the crossbow arm 4. The crossbow head 5 includes a crossbow head bracket 5-1. The crossbow head bracket 5-1 is in the shape of a "king" character as a whole, and three cross beams extend obliquely from the middle to both sides respectively. A crossbow blade 5-2 with a string threading hole opened at the end is hinged between the upper and middle cross beams through a hinge shaft. A torsion spring 5-3 is arranged between the middle and lower cross beams. One end of the torsion spring 5-3 is fixedly connected to the crossbow head bracket 5-1, and the other end is fixedly connected to the crossbow blade 5-2.

[0023] As Figure 1 , 10As shown, a quiver 2 for automatically providing crossbow arrows 9 is installed at the lower part of the crossbow casing 1. The quiver 2 includes a quiver shell 2-1. A limit plate 2-10 matching the outer contour of the crossbow arrow 9 is arranged on the top of the quiver shell 2-1 to prevent the loaded crossbow arrow 9 from being pushed out of the quiver 2 by the top arrow plate 2-2. A quiver guide rail 2-8 and a top arrow plate 2-2 are arranged inside the quiver shell 2-1. The top arrow plate 2-2 is provided with a top arrow guide groove 2-9 matching the quiver guide rail 2-8 so that it can move up and down along the quiver guide rail 2-8. The top arrow plate 2-2 divides the inside of the quiver shell 2-1 into an arrow storage part 2-3 for storing crossbow arrows 9 and a movable part 2-4 for the top arrow plate 2-2 to move. A return spring 2-5 is arranged inside the movable part 2-4. One end of the return spring 2-5 is connected to the bottom of the top arrow plate 2-2, and the other end is connected to the inner bottom surface of the quiver shell 2-1. A locking groove 2-6 is provided on the side of the magazine shell 2-1 near the trigger assembly 8, and a magazine operating button 2-7 is provided inside the crossbow receiver 1 between the magazine 2 and the trigger assembly 8. The magazine release button 2-7 includes a locking pin that matches the locking groove 2-6 and can be horizontally extended and retracted. A guiding slope is provided at the front of the locking pin, and the tail is connected to the crossbow receiver 1 through a horizontally arranged compression spring. The side of the locking pin extends to the outside of the crossbow receiver 1 through a short axis and is provided with an operating handle, so that when the magazine 2 compresses the locking pin and is completely loaded into the crossbow receiver 1, the locking pin pops out and is inserted into the locking groove 2-6 to lock the magazine 2. After pulling the operating handle backward, the magazine 2 is unlocked and can be taken out.

[0024] The preparation work before use includes: pre-loading the crossbow arrow 9 into the arrow box 2, installing the arrow box 2 on the lower part of the crossbow casing 1, hooking the crossbow string connected between the two crossbow pieces 5-2 to the string hook part of the string hook 10, and connecting the slide rope to the string tension part of the string hook 10. When using, first turn on the motor switch 1-2, the motor 3-1 drives the worm 3-2 to rotate, the worm 3-2 drives the worm wheel 3-4 to rotate, the worm wheel 3-4 then drives the pulley 3-6 to rotate, the pulley 3-6 retracts the slide rope to pull the string hook 10 backward, when the string hook 10 reaches the trigger assembly, the string stopper 8-2 is forced to move downward, and rebounds under the action of the compression spring after the string hook 10 passes over, at this time, turn off the motor switch 1-2, the string hook 10 is limited by the string stopper 8-2, and the arrow push hook 11 is located at the rear of the arrow tail groove 9-3 of the crossbow arrow 9, forming a ready-to-shoot state. When shooting, the trigger 8-3 is pulled. During the rotation of the trigger 8-3, the electromagnet switch 8-5 is turned on first, and the magnetic column in the electromagnet 3-8 extends, pushing one end of the clutch lever 3-7 to lift the other end, applying force to the push plate 3-9, and the column 3-10 pushes the pulley seat 3-5 away from the worm gear 3-4, and the protrusion 3-11 on the pulley 3-6 is disengaged from the groove 3-12 of the worm gear 3-4, so that the pulley 3-6 can rotate freely. The trigger 8-3 continues to rotate, pressing down the string stopper 8-2 through the transmission lever 8-4, so that the string hook 10 is out of the limited state and pops out forward along the sliding groove 7 under the multiple potential energies of the crossbow string, crossbow piece 5-2 and torsion spring 5-3, and the arrow pusher 11 pushes the crossbow arrow 9 to be shot forward from the quiver 2. After the arrow shell 9-5 reaches the arrow shell separation guide groove 4-2, it is separated and thrown out from the ejection window 4-1. The main body of the crossbow arrow 9 then passes through the crossbow arrow launching hole in the crossbow arm 4 and continues to move forward until it is shot out. The new crossbow arrow 9 moves upward under the action of the top arrow plate 2-2 and enters the waiting position for firing. At this time, the trigger 8-3 is released, the electromagnet switch 8-5 is turned off, the magnetic column in the electromagnet 3-8 is retracted, the pulley seat 3-5 and the push plate 3-9 are restored to the original position under the action of the compression spring, and the motor switch 1-2 is turned on again to rotate the worm wheel 3-4. During the rotation process, the protrusion 3-11 on the pulley 3-6 gradually gets stuck in the groove 3-12, and the pulley 3-6 resumes the common rotation with the worm wheel 3-4, and the string hook 10 is pulled back again. The above operation is repeated to realize automatic loading and rapid electric stringing and continuous shooting. After the crossbow arrow 9 is shot, the handle of the arrow box operating button 2-7 is pulled back to remove the crossbow box 2.

[0025] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An automatic loading electric repeating crossbow, characterized in that: The invention comprises a crossbow casing (1) with a trigger assembly (8) and a power supply module (1-3), an arrow box (2) installed below the crossbow casing (1) and containing crossbow arrows (9), a rear support (3) provided at the rear of the crossbow casing (1) and provided with an electric string tensioning mechanism, a crossbow arm (4) provided at the front of the crossbow casing (1), and a crossbow head (5) provided at the front of the crossbow arm (4); arrow grooves (6) for the crossbow arrows (9) to pass through are provided inside the crossbow arm (4) and the crossbow head (5); sliding grooves (7) are provided on the crossbow casing (1) and the crossbow arm (4); a string hook (10) for hooking a crossbow string and being able to slide therein is provided in the sliding groove (7); an arrow push hook (11) for pushing the crossbow arrows (9) is provided at the lower part of the string hook (10); the electric string tensioning mechanism pulls the string hook (10) with the energy support of the power supply module (1-3).

2. The automatic loading electric repeating crossbow according to claim 1, characterized in that: The electric string tensioning mechanism comprises a motor (3-1) arranged inside the rear support (3), a worm (3-2) located at the output end of the motor (3-1), a central shaft (3-3) penetrating the rear support (3), a worm wheel (3-4) fixedly mounted on the central shaft (3-3) and matching the worm (3-2), a pulley seat (3-5) sleeved on the central shaft (3-3), and a pulley (3-6) sleeved on the pulley seat (3-5); an articulated seat (3-14) is arranged on the inner wall of the rear support (3), a clutch lever (3-7) is arranged on the articulated seat (3-14), a middle part of the clutch lever (3-7) is hinged to the articulated seat (3-14) through an articulated shaft (3-15), and one of the An electromagnet (3-8) is arranged at one end, and the other end is sleeved on the central shaft (3-3); a push plate (3-9) sleeved on the central shaft (3-3) is arranged between the clutch lever (3-7) and the worm wheel (3-4); a through hole is opened on the worm wheel (3-4), and a column (3-10) matching with it is arranged on the push plate (3-9); a pulley compression spring (3-16) is arranged between the pulley seat (3-5) and the inner wall of the rear support (3); a convex block (3-11) is arranged on the pulley (3-6), and a groove (3-12) corresponding to the convex block is arranged on the worm wheel (3-4); one end of the central shaft (3-3) extends to the outside of the rear support (3) and is fixedly connected with a hand-cranking device (3-13).

3. The automatic loading electric repeating crossbow according to claim 2, characterized in that: The trigger assembly (8) comprises a trigger bracket (8-1) installed in the crossbow receiver (1), a string stopper (8-2) installed in the trigger bracket (8-1) and capable of moving up and down, a trigger (8-3) hinged in the trigger bracket (8-1), and a transmission lever (8-4) arranged between the string stopper (8-2) and the trigger (8-3); the middle part of the transmission lever (8-4) is hinged on the inner wall of the trigger bracket (8-1), one end of the transmission lever (8-4) is pressed against the lower part of the string stopper (8-2), and the other end of the transmission lever (8-4) is hinged on the inner wall of the trigger bracket (8-1), and the lower part of the string stopper (8-2) is pressed against the lower part of the string stopper (8-2). The end is pressed against the upper part of the trigger (8-3); the bottom end of the string stopper (8-2) is connected to the inner bottom surface of the trigger bracket (8-1) via a string stopper compression spring (8-6); the top and bottom of the trigger bracket (8-1) are respectively provided with through grooves for the movement of the string stopper (8-2) and the trigger (8-3); an electromagnet switch (8-5) is arranged beside the trigger (8-3), and the electromagnet switch (8-5) is powered by the power supply module (1-3) to control the opening and closing of the electromagnet (3-8).

4. The automatic loading electric repeating crossbow according to claim 3, characterized in that: The crossbow receiver (1) is provided with a rear grip (1-1) and a motor switch (1-2); the power supply module (1-3) is installed inside the rear grip (1-1); the motor switch (1-2) is powered by the power supply module (1-3) to control the on and off of the motor (3-1).

5. The automatic loading electric repeating crossbow according to any one of claims 1 to 4, characterized in that: The crossbow head (5) comprises a crossbow head bracket (5-1), two crossbow pieces (5-2) symmetrically hinged on both sides of the crossbow head bracket (5-1), and two torsion springs (5-3) symmetrically fixedly arranged on both sides of the crossbow head bracket (5-1); the other end of the torsion spring (5-3) is fixedly connected to the crossbow piece (5-2).

6. The automatic loading electric repeating crossbow according to any one of claims 1 to 4, characterized in that: The crossbow arrow (9) comprises an arrow body (9-1), an arrowhead (9-2) arranged at the front end of the arrow body (9-1), and an arrow tail groove (9-3) arranged at the rear end of the arrow body (9-1); a tail wing (9-4) is arranged at the rear of the arrow body (9-1), and an arrow shell (9-5) is arranged at the front.

7. The automatic loading electric repeating crossbow according to claim 6, characterized in that: The arrow case (9-5) is a split-type arrow case that can be divided into two halves, and a through hole for clamping the crossbow arrow (9) is provided at the center of the arrow case (9-5); an arrow case guide groove (9-6) is provided on the arrow case (9-5), and a guiding inclined surface is provided between the arrow case guide groove (9-6) and the front end surface of the arrow case (9-5).

8. The automatic loading electric repeating crossbow according to any one of claims 1 to 4, characterized in that: The quiver (2) comprises a quiver shell (2-1) and a top arrow plate (2-2) located in the quiver shell (2-1) and capable of moving up and down; a limit plate (2-10) is arranged on the top of the quiver shell (2-1); the top arrow plate (2-2) divides the interior of the quiver shell (2-1) into an arrow storage portion (2-3) and a movable portion (2-4); a return spring (2-5) is arranged in the movable portion (2-4); one end of the return spring (2-5) is connected to the top arrow plate (2-2), and the other end is connected to the inner bottom surface of the quiver shell (2-1); a locking groove (2-6) is opened on the side of the quiver shell (2-1), and a quiver operating button (2-7) with a corresponding and retractable locking pin is arranged on the crossbow receiver (1).

9. The automatic loading electric repeating crossbow according to claim 8, characterized in that: An arrow guide rail (2-8) is arranged in the arrow box shell (2-1), and a matching arrow guide groove (2-9) is formed on the arrow top plate (2-2).

10. The automatic loading electric repeating crossbow according to any one of claims 1 to 4, characterized in that: The tail of the crossbow arm (4) is provided with a shell ejection window (4-1), and an arrow shell separation guide rail (4-2) is arranged in the shell ejection window (4-1).

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