Crossbow trigger device

Abstract

A crossbow trigger device comprises a shell, a trigger buckle, a trigger connecting rod, a trigger block, a safety limiting block, a safety block, a safety push block, a bowstring buckle, an anti-idle-starting safety check block and an anti-idle-starting limiting block. The trigger buckle, the trigger block, the safety limiting block, the safety block, the bowstring buckle, the anti-idle-starting safety check block and the anti-idle-starting limiting block are hinged to the shell, and the safety push block is installed at the rear end of the safety block. One end of the trigger connecting rod is hinged to the trigger buckle, the other end of the trigger connecting rod is hinged to the trigger block, one end of the trigger block is connected with the safety limiting block in a clamped mode, the other end of the trigger block is connected with the idle-start-preventing limiting block in a clamped mode, the safety limiting block is connected with the safety block in a clamped mode, and the front end of the safety block movably penetrates through the bowstring buckle. And the idle-hair-prevention safety stop block is connected with the idle-hair-prevention limiting block in a clamping manner. The trigger is safe and reliable, has the characteristic of preventing idle starting, prolongs the service life of the crossbow, and is safe and reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of crossbows, in particular to a crossbow trigger device with holding and triggering functions. Background Art

[0002] A crossbow is a crossbow gun configured on the basis of a bow. The bowstring of the crossbow head can be kept in a stretched state during use, so the crossbow has a longer range than the bow. The crossbow gun hooks the pulled bowstring through the trigger device and completes the release process of the crossbow by operating the trigger device.

[0003] The existing crossbow trigger mainly has the safety on both sides of the trigger. In order to facilitate pushing, the safety push shaft will protrude, which is easy to cause accidental triggering. At the same time, it does not protect the crossbow from empty firing, thereby affecting the service life of the crossbow and posing a hidden danger to personal safety. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a crossbow trigger device, which prevents the trigger from being accidentally opened. At the same time, there will be no empty shots when there is no arrow shaft or the arrow shaft is not in place, thereby increasing the service life of the crossbow and making the trigger safe and reliable.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A crossbow trigger device comprises a housing, a trigger buckle, a trigger connecting rod, a trigger block, a safety limit block, a safety block, a safety push block, a bowstring buckle, an anti-aircraft safety stop block and an anti-aircraft limiting block;

[0007] The trigger button, the trigger block, the safety limit block, the safety block, the bowstring buckle, the anti-air fire safety stop block and the anti-air fire limit block are respectively hingedly installed with the housing, and the safety push block is installed at the rear end of the safety block;

[0008] One end of the trigger link is hingedly installed with the trigger buckle, and the other end of the trigger link is hingedly installed with the trigger block. One end of the trigger block is engaged and connected with the safety limit block, and the other end of the trigger block is engaged and connected with the anti-aircraft firing limit block. The safety limit block is engaged and connected with the safety block, and the front end of the safety block moves through the bowstring buckle, and the anti-aircraft firing safety stop block is engaged and connected with the anti-aircraft firing limit block.

[0009] As a further improvement, a hook is provided at one end of the trigger block, a slide groove is provided at the other end of the trigger block, a slot is provided on the anti-aircraft fire limiting block, a first convex shaft is provided on the safety limit block, the hook is engaged with the slot, and the slide groove is slidably connected to the first convex shaft.

[0010] As a further improvement, a first torsion spring is installed on the trigger block, a first clamping column is provided on the shell, one side of the first torsion spring presses against the first clamping column, and the other side of the first torsion spring is installed on one side of the hook of the trigger block.

[0011] As a further improvement, a limiting hole is provided on the safety limiting block, and a second convex shaft is provided on the safety block, and the second convex shaft is movably inserted in the limiting hole.

[0012] As a further improvement, a second torsion spring is provided on the safety limit block, a second clamping column is provided on the shell, one side of the second torsion spring presses against the second clamping column, and the other side of the second torsion spring presses against the first convex shaft.

[0013] As a further improvement, the safety block is provided with a stroke limit groove, the stroke limit groove is provided with a retaining spring, the shell is provided with a third cam shaft, the third cam shaft is movably inserted into the stroke limit groove and passes through the retaining spring, the bowstring buckle is provided with a through groove, the front end of the safety block passes through the through groove of the bowstring buckle, the shell is provided with a fourth cam shaft, and one side of the stroke limit groove is clamped between the third cam shaft and the fourth cam shaft.

[0014] As a further improvement, a third torsion spring is installed on the bowstring buckle, one side of the third torsion spring presses against the shell, and the other side of the third torsion spring is connected to the bowstring buckle, and the third torsion spring is used to keep the bowstring buckle in an open state.

[0015] As a further improvement, the anti-airfire safety block is provided with an open groove, one end of the anti-airfire limiting block is inserted into the open groove, the shell is provided with a fifth cam, the anti-airfire safety block is provided with a barb, the fifth cam forms a limit for the barb, and the anti-airfire safety block is provided with a fourth torsion spring, one side of the fourth torsion spring presses against the fifth cam, and the other side of the fourth torsion spring is mounted on the anti-airfire safety block.

[0016] As a further improvement, a protrusion is provided on the trigger link, and the fifth protrusion shaft limits the protrusion.

[0017] As a further improvement, the trigger button is provided with a fifth torsion spring for generating a restoring elastic force after the trigger button is rotated.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] By setting an anti-dry-fire limiting block and an anti-dry-fire safety block, and utilizing the trigger block to limit the triggering of the trigger button, the trigger cannot be triggered when the safety is turned on alone or the arrow shaft is inserted, and there is no possibility of accidental triggering of the safety. The trigger is a single integral structure, which is easy to disassemble and replace, and prevents the trigger from being accidentally opened. At the same time, there will be no empty fire if there is no arrow shaft or the arrow shaft is not in place, thereby increasing the service life of the crossbow and making the trigger safer and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2It is a schematic diagram of the three-dimensional structure after the present invention is cut open;

[0022] Figure 3 It is a structural schematic diagram of another viewing angle of the present invention after being cut open;

[0023] Figure 4 It is a front view structural schematic diagram of the present invention;

[0024] Figure 5 This is a schematic diagram of the relationship between the various parts of the trigger of the present invention after winding;

[0025] Figure 6 It is a schematic diagram of the relationship between the various parts when the trigger of the present invention is triggered.

[0026] Reference numerals:

[0027] Shell 1, trigger cover 2, trigger buckle 3, protrusion 4, safety push block 5, bowstring buckle 6, safety block 7, trigger block 8, hook 81, slide groove 82, safety limit block 9, anti-airfire safety block 10, anti-airfire limit block 11, slot 1101, trigger connecting rod 12, retaining spring 13, bowstring 14, arrow shaft 15, first convex shaft 1601, second convex shaft 1602, third convex shaft 1603, fourth convex shaft 1604, fifth convex shaft 1605, first clamping column 1701, second clamping column 1702, limiting hole 18, travel limiting groove 19, through groove 20, opening groove 21, barb 22, first torsion spring 801, second torsion spring 901, third torsion spring 601, fourth torsion spring 101, fifth torsion spring 301. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] like Figure 1-6 As shown, a crossbow trigger device includes a shell 1, a trigger buckle 3, a trigger connecting rod 12, a trigger block 8, a safety limit block 9, a safety block 7, a safety push block 5, a bowstring buckle 6, an anti-airfire safety block 10 and an anti-airfire limiting block 11, and the shell 1 is used to install various components, and the shell 1 is installed in the trigger cover 2.

[0033] The trigger button 3, the trigger block 8, the safety limit block 9, the safety block 7, the bowstring buckle 6, the anti-air fire safety block 10 and the anti-air fire limit block 11 are respectively hingedly installed with the housing, the trigger button 3 can rotate, the trigger block 8 can rotate, the safety limit block 9 can rotate, the bowstring buckle 6 can rotate, the anti-air fire safety block 10 can rotate, and the anti-air fire limit block 11 can rotate. The safety push block 5 is installed at the rear end of the safety block 7, and the safety block 7 can be driven to move by pressing the safety push block 5. The bowstring buckle 6 is used to buckle the bowstring 14.

[0034] One end of the trigger link 12 is hingedly mounted with the trigger buckle 3, and the other end of the trigger link 12 is hingedly mounted with the trigger block 8, one end of the trigger block 8 is clamped and connected with the safety limit block 9, and the other end of the trigger block 8 is clamped and connected with the anti-air fire limit block 11, the safety limit block 9 is clamped and connected with the safety block 7, the front end of the safety block 7 moves through the bowstring buckle 6, the bowstring buckle 6 is clamped and connected with the anti-air fire safety block 10, and the anti-air fire safety block 10 is clamped and connected with the anti-air fire limit block 11. The clamping connection means that the two components can be clamped and connected with each other, and can be separated from each other.

[0035] Embodiment 2

[0036] refer to Figure 1-6 As shown, a hook 81 is provided at one end of the trigger block 8, a slide 82 is provided at the other end of the trigger block 8, a slot 1101 is provided on the anti-air firing limiting block 11, a first convex shaft 1601 is provided on the safety limiting block 9, the hook 81 is engaged and connected with the slot 1101, the slide 82 is slidably connected with the first convex shaft 1601, and the slot 1101 is used to limit the hook 81 of the trigger block 8 to prevent the safety from being opened and air firing when there is no arrow shaft 15. A first torsion spring 801 is installed on the trigger block 8, and a first clamping column 1701 is provided on the housing 1. One side of the first torsion spring 801 presses against the first clamping column 1701, and the other side of the first torsion spring 801 is installed on one side of the hook 81 of the trigger block 8. After the trigger block 8 is rotated, the first torsion spring 801 will be squeezed, thereby generating a rebound force, which can drive the trigger block 8 to automatically reset. By utilizing the first protrusion 1601 to contact the trigger block 8, when the safety block 7 is not opened, the first protrusion 1601 on the safety limit block 9 abuts against the slide groove 82 on the trigger block 8, preventing the trigger block 8 from rotating and triggering, so that the trigger block 8 can support the trigger button 3 to prevent the trigger button from rotating without being subjected to external force, thereby preventing the accidental misfire problem.

[0037] The safety limit block 9 is provided with a limit hole 18, and the safety block 7 is provided with a second cam 1602, which is movably inserted in the limit hole 18. When the safety block 7 is driven, the second cam 1602 can move in the limit hole 18, and the limit hole 18 limits the rotation range of the safety block 7.

[0038] The safety limit block 9 is provided with a second torsion spring 901, and the shell 1 is provided with a second clamping column 1702. One side of the second torsion spring 901 presses against the second clamping column 1702, and the other side of the second torsion spring 901 presses against the first convex shaft 1601. After the safety limit block 9 is rotated by an external force, the second torsion spring 901 is squeezed to generate a rebound force, which can drive the safety limit block 9 to automatically reset.

[0039] Embodiment 3

[0040] like Figure 1-6As shown, the safety block 7 is provided with a travel limit groove 19, and the travel limit groove 19 is provided with a retaining spring 13. The housing 1 is provided with a third convex shaft 1603, which is movably inserted into the travel limit groove 19 and passes through the retaining spring 13. Both sides of the retaining spring 13 are provided with cavities that just accommodate the third convex shaft. When the third convex shaft 1603 moves to both ends of the retaining spring 13, the safety block 7 is just in the open and closed state. Therefore, the clamping of the third convex shaft 1603 by the retaining spring 13 can limit the automatic movement of the safety block 7 in the open and closed positions. The bowstring buckle 6 is provided with a through groove 20, and the front end of the safety block 7 passes through the through groove 20 of the bowstring buckle 6. The housing 1 is provided with a fourth convex shaft 1604, and one side of the travel limit groove 19 is clamped between the third convex shaft 1603 and the fourth convex shaft 1604, which limits the horizontal movement of the safety block 7, so that the safety block keeps moving horizontally.

[0041] A third torsion spring 601 is installed on the bowstring buckle 6, one side of the third torsion spring 601 presses against the shell 1, and the other side of the third torsion spring 601 is connected to the bowstring buckle 6. When there is no external force, the third torsion spring is used to keep the bowstring buckle in an open state to facilitate the bowstring 14.

[0042] The anti-air-fire safety block 10 is used to sense whether the arrow shaft 15 is assembled in place. The anti-air-fire safety block 10 is provided with an opening groove 21, one end of the anti-air-fire limiting block 11 is inserted into the opening groove 21, and the opening groove 21 is used to limit the anti-air-fire limiting block 11. The shell 1 is provided with a fifth cam 1605, and the anti-air-fire safety block 10 is provided with a barb 22. The fifth cam 1605 forms a limit for the barb 22. The anti-air-fire safety block 10 is provided with a fourth torsion spring 101, one side of the fourth torsion spring 101 presses against the fifth cam 1605, and the other side of the fourth torsion spring 101 is installed on the anti-air-fire safety block 10. After the anti-air-fire safety block 10 rotates, the fourth torsion spring 101 is squeezed to generate a rebound force, which helps the anti-air-fire safety block 10 to automatically reset.

[0043] The trigger link 12 is provided with a protrusion 4. When the trigger link 12 rotates a certain angle, the protrusion 4 will press against the fifth protrusion 1605. The fifth protrusion 1605 limits the trigger link 12, restricts the movement of the trigger link 12, and avoids excessive movement of the trigger link.

[0044] The trigger button 3 is provided with a fifth torsion spring 301 for generating a restoring elastic force after the trigger button 3 is rotated. After the trigger button 3 is pulled, the fifth torsion spring 301 is squeezed to generate a rebound force, thereby being able to automatically reset.

[0045] When in use, the present invention is used in conjunction with a crossbow to serve as a trigger device of the crossbow.

[0046] refer to Figure 2and Figure 5 As shown, the bow string 14 is on, and the arrow shaft has not been inserted yet. In the state of the bow string, each component is not subjected to external forces, and the specific state is as follows:

[0047] The trigger buckle 3 is maintained in the initial state, the bowstring 14 is pulled into the bowstring buckle 6 and is buckled by the bowstring buckle 6, the protrusion 4 of the trigger link 12 does not contact the fifth convex shaft 1605, the hook 81 of the trigger block 8 is engaged and connected with the slot 1101 of the anti-air-fire limiting block 11, one end of the anti-air-fire limiting block 11 is inserted into the opening slot 21 of the anti-air-fire safety block 10, and the slot 1101 is used to limit the hook 11, limiting the downward rotation of the trigger block 8, preventing the safety from being opened when there is no arrow shaft 15 and causing an air-fire problem. The slide slot 82 of the trigger block 8 is blocked and restricted by the first convex shaft 1601, and the trigger block 8 is restricted from rotating. After the safety block 7 touches the bowstring 14 during the bowstring pulling process, it is always in a closed state, and the third convex shaft 1603 is in a closed position in the retaining spring 13. At this time, the third convex shaft 1603 is clamped by the retaining spring to prevent the safety block 7 from moving freely in the closed state. After the bowstring 14 is put on, the bowstring buckle 6 is buckled with the trigger block 8, and the front end of the safety block 7 is located in the through groove 20 of the bowstring buckle 6 without touching the bowstring 14. The inverted hook 22 of the anti-airfire safety block 10 is snapped with the fifth cam 1605 to ensure that the anti-airfire safety block 10 is snapped with the bowstring buckle 6, so that the bowstring buckle 6 is restricted from rotating to prevent the problem of air firing in the absence of external force.

[0048] It can be seen from this that by utilizing the interconnected structure of the safety limit block, the anti-airfire safety stop block, the anti-airfire limiting block and the trigger block, the trigger block can be pressed against the trigger buckle 3, and the trigger buckle will not open automatically without external force, thereby avoiding the air-fire problem.

[0049] refer to Figure 2 and Figure 6 As shown in the figure, the actions of each component when the trigger is triggered:

[0050] The arrow shaft 15 is inserted, and the connecting end of the arrow shaft 15 is inserted between the bowstring buckle 6 and the anti-aircraft fire safety block 10. The arrow shaft 15 first presses the anti-aircraft fire safety block 10 downward, then enters the bowstring buckle 6, and finally sticks to the bowstring 14. The bowstring buckle 6 is affected by the tension of the bowstring 14 and has a tendency to open, but is blocked by the front end of the trigger block 8.

[0051] Since the anti-airfire safety block 10 is pressed down by the arrow shaft 15, the anti-airfire limiting block 11 is engaged with the anti-airfire safety block 10, the anti-airfire limiting block 11 rotates clockwise around the axis, and the slot 1101 also rotates, thereby releasing the restriction on the hook 81.

[0052] Push the safety push block 5 forward to drive the safety block 7 to move. When the safety is unlocked, the safety block 7 moves to the right under the restriction of the travel limit slot 19 and the third cam 1603, and the front end of the safety block 7 passes through the through slot 20 of the bowstring buckle 6 and moves toward the bowstring 14. Under the clamping action of the third cam 1603 and the fourth cam 1604, the safety block 7 can be guaranteed to move in the horizontal direction. At the same time, the second cam 1602 on the safety block 7 moves in the limit hole 18 in the safety limit block 9, hits the front wall of the limit hole 18, drives the safety limit block 9 to rotate clockwise, and the first cam 1601 on the safety limit block 9 releases the restriction on the slide slot 82, so that both the safety on the trigger are opened.

[0053] The trigger button 3 is rotated toward the rear of the crossbow, that is, to the left, driving the trigger link 12 to move to the left, and stops when the protrusion 4 on the trigger link 12 is pressed against the fifth protruding shaft 1605, at which time the protrusion 4 presses upward against the hook 22 of the anti-air fire safety block 10. The trigger link 12 presses the trigger block 8 to the left, causing the trigger block 8 to rotate clockwise, and the trigger block 8 releases the restriction on the bottom of the bowstring buckle 9, and the bowstring buckle 6 rotates counterclockwise, and the bowstring drives the arrow shaft to be fired, completing the triggering of the trigger.

[0054] It can be seen from this that when the arrow shaft 15 is inserted and the safety block 5 is opened separately, the gun cannot be triggered if the trigger button is not pulled, thereby preventing empty shots.

[0055] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crossbow trigger device, characterized in that: It includes a housing, a trigger buckle, a trigger connecting rod, a trigger block, a safety limit block, a safety block, a safety push block, a bowstring buckle, an anti-aircraft safety stop block and an anti-aircraft limiting block; The trigger button, the trigger block, the safety limit block, the safety block, the bowstring buckle, the anti-air fire safety stop block and the anti-air fire limit block are respectively hingedly installed with the housing, and the safety push block is installed at the rear end of the safety block; One end of the trigger link is hingedly installed with the trigger buckle, and the other end of the trigger link is hingedly installed with the trigger block. One end of the trigger block is engaged and connected with the safety limit block, and the other end of the trigger block is engaged and connected with the anti-aircraft firing limit block. The safety limit block is engaged and connected with the safety block, and the front end of the safety block moves through the bowstring buckle, and the anti-aircraft firing safety stop block is engaged and connected with the anti-aircraft firing limit block.

2. The crossbow trigger device according to claim 1, characterized in that: One end of the trigger block is provided with a hook, the other end of the trigger block is provided with a slide groove, the anti-aircraft fire limiting block is provided with a slot, the safety limit block is provided with a first convex shaft, the hook is engaged with the slot, and the slide groove is slidably connected with the first convex shaft.

3. The crossbow trigger device according to claim 2, characterized in that: The trigger block is provided with a first torsion spring, the housing is provided with a first clamping column, one side of the first torsion spring presses against the first clamping column, and the other side of the first torsion spring is installed on one side of the clamping hook of the trigger block.

4. The crossbow trigger device according to claim 1, characterized in that: The safety limit block is provided with a limit hole, the safety block is provided with a second convex shaft, and the second convex shaft is movably inserted in the limit hole.

5. The crossbow trigger device according to claim 4, characterized in that: The safety limit block is provided with a second torsion spring, the housing is provided with a second clamping column, one side of the second torsion spring presses against the second clamping column, and the other side of the second torsion spring presses against the first convex shaft.

6. The crossbow trigger device according to claim 1, characterized in that: The safety block is provided with a stroke limit groove, the stroke limit groove is provided with a retaining spring, the shell is provided with a third cam, the third cam is movably inserted into the stroke limit groove and passes through the retaining spring, the bowstring buckle is provided with a through groove, the front end of the safety block passes through the through groove of the bowstring buckle, the shell is provided with a fourth cam, and one side of the stroke limit groove is clamped between the third cam and the fourth cam.

7. The crossbow trigger device according to claim 1, characterized in that: A third torsion spring is installed on the bowstring buckle, one side of the third torsion spring presses against the shell, and the other side of the third torsion spring is connected to the bowstring buckle. The third torsion spring is used to keep the bowstring buckle in an open state.

8. The crossbow trigger device according to claim 1, characterized in that: The anti-airfire safety block is provided with an open groove, one end of the anti-airfire limiting block is stuck in the open groove, the shell is provided with a fifth cam, the anti-airfire safety block is provided with a barb, the fifth cam forms a limit for the barb, and the anti-airfire safety block is provided with a fourth torsion spring, one side of the fourth torsion spring presses against the fifth cam, and the other side of the fourth torsion spring is mounted on the anti-airfire safety block.

9. The crossbow trigger device according to claim 8, characterized in that: The trigger connecting rod is provided with a protruding portion, and the fifth protruding shaft forms a limit for the protruding portion.

10. The crossbow trigger device according to claim 1, characterized in that: The trigger button is provided with a fifth torsion spring for generating a restoring elastic force after the trigger button is rotated.

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