阅读说明：本技术 一种基于空气动力学的摄影用道具弩及其使用方法 (Prop crossbow for photography based on aerodynamics and use method thereof ) 是由 汪莉 于 2021-02-18 设计创作，主要内容包括：本发明公开了一种基于空气动力学的摄影用道具弩及其使用方法,包括弩体与弩箭,所述弩体包括木制矩形块,所述木制矩形块内设有上下贯通的一号空腔,所述一号空腔前后壁内各设有一个圆槽,前后两个所述圆槽内转动连接有一号转动轴,本发明结构简单并且本发明采用分体式结构使得本发明能够自由拆装,本发明在拆解完成后占地面积小并且便于运输；本发明设有自锁机构能够防止本发明中弩箭的意外发射,保证了摄影工作的安全；本发明的弩箭根据伯努利原理设有一个特质的榫头,能够使弩箭在保证拍摄效果的情况下不会出现飞行失控,并且即使弩箭直接命中人体也不会造成过大的损伤,保证了拍摄人员的安全。(The invention discloses a prop crossbow for photography based on aerodynamics and a use method thereof, wherein the prop crossbow comprises a crossbow body and a crossbow arrow, the crossbow body comprises a wooden rectangular block, a first cavity which is communicated up and down is arranged in the wooden rectangular block, a circular groove is respectively arranged in the front wall and the rear wall of the first cavity, and a first rotating shaft is rotationally connected in the front circular groove and the rear circular groove; the automatic shooting device is provided with the self-locking mechanism, so that accidental shooting of the crossbow arrow can be prevented, and the safety of shooting work is ensured; the bolt is provided with the special tenon according to the Bernoulli principle, so that the bolt cannot fly out of control under the condition of ensuring the shooting effect, and the bolt cannot cause excessive damage even if directly hitting a human body, thereby ensuring the safety of shooting personnel.)

1. The utility model provides a prop crossbow is used in photography based on aerodynamics, includes crossbow body and crossbow arrow, its characterized in that: the crossbow body comprises a wooden rectangular block, a first cavity which is through up and down is arranged in the wooden rectangular block, a round groove is respectively arranged in the front wall and the rear wall of the first cavity, a first rotating shaft is connected in the round groove in a front-back manner, a coil spring is arranged on the first rotating shaft in the round groove, the other end of the coil spring is fixedly arranged in the wall surface of the round groove, a trigger is fixedly arranged on the first rotating shaft in the first cavity, the trigger extends downwards to the lower side of the first cavity, the left side surface of the trigger tends to butt against the lower side of the left side surface of the first cavity, a left-right through guide groove communicated with the first cavity is arranged in the upper side surface of the wooden rectangular block, a fixed block which extends upwards into the guide groove is fixedly arranged on the upper side surface of the trigger, a protruding ball is fixedly arranged on the upper side surface of the right side surface of the fixed block, and a protective shell which can protect the trigger is fixedly, the utility model discloses a bolt, including the cavity, the cavity is left the cavity is equipped with the cavity two that link up around in the wooden rectangular block, can install the crossbow wing device in the cavity two, No. two the cavity with between the cavity be equipped with the forward three cavities of opening in the wooden rectangular block, be equipped with in the three cavities and prevent the unexpected pivoted locking mechanism of trigger, the bolt includes the arrow body, the arrow body is cylindricly and the right side of the external anchor ring face of arrow body sets firmly the feather that the equal angle ring-shaped distributes, the left end face of the arrow body sets firmly the metal post, the left surface of metal post sets firmly and hinders the device that flies, it can open when the bolt flies to prevent the bolt flies too far away or flight out of control to hinder when flying the device takes effect the bolt can direct shooting in the actor's body surface and not produce the injury.

2. The aerodynamic-based prop crossbow for photography of claim 1, wherein: crossbow wing device includes two bow-shaped boards, a butt piece has set firmly on the terminal surface of bow-shaped board, the thickness of a butt piece with the high phase-match of No. two cavities, connect through the elasticity rope between the other end of bow-shaped board.

3. The aerodynamic-based prop crossbow for photography of claim 1, wherein: the locking mechanism comprises a first through hole communicated with the first cavity from the inside to the right side of the right wall of the third cavity, the first through hole is positioned on the upper side of the circular groove, a first sliding block is connected with the rear side of the third cavity in a front-back sliding manner in the third cavity, the first sliding block is connected with the rear side of the third cavity through a first spring, a sliding groove with a right opening is arranged in the first sliding block, the left side of the sliding groove inclines towards the right back, two abutting blocks are fixedly arranged on the upper side and the lower side of the sliding groove, the two abutting blocks and the left side of the sliding groove are at the same angle, a limiting rod is connected with the first through hole in a left-right sliding manner, the limiting rod extends into the sliding groove through the two abutting blocks towards the left side of the sliding groove, a third abutting block is fixedly arranged on the ring surface of the limiting rod, the right side of the third abutting block abuts against the left side of the second abutting block, the limiting rod right-hand member face extends to in the cavity, slider left side is equipped with and can makes the launch in-process prevent the fixing device that crossbow wing device drops.

4. A prop crossbow for aerodynamic-based photography according to claim 3, wherein: fixing device including set firmly in a slider left surface flank of tooth rack a left, be equipped with in No. three cavity left sides and link up to left No. two through-holes of No. two cavities, No. three through-hole internal rotation all around be connected with No. two axis of rotation and No. two be equipped with in the axis of rotation with a gear of a rack toothing, No. two axis of rotation left downside No. three through-hole internal rotation is connected with No. three axis of rotation around the side, No. three be equipped with in the axis of rotation with No. two gears of a gear toothing, No. two through-hole downside horizontal sliding connection have the flank of tooth upwards with No. two racks of No. two gear toothing, No. two racks extend to left No. two cavities have set firmly the butt plate, the butt plate has certain elasticity.

5. The aerodynamic-based prop crossbow for photography of claim 1, wherein: the flying prevention device comprises a metal column which is fixedly arranged on the metal column, the left end surface of the metal column is quadrilateral, a concave plate is connected to each side of the quadrilateral, the outward side surface of the concave plate is inwards concave, a diamond block is fixedly arranged at the center of the left end surface of the metal column, each side of the diamond block is connected to the inner side surface of the concave plate through a second spring,

a use method of a prop crossbow for photography based on aerodynamics comprises the following specific steps:

firstly, installing a crossbow wing device, respectively inserting a first abutting block into a second cavity from the front side and the rear side of the second cavity, abutting the first abutting block against the upper side, the lower side and the left side of the second cavity, then placing a crossbow arrow in a guide groove, abutting the crossbow arrow against the left side of a fixed block, straightening the right side of the fixed block by an elastic rope at the moment, and abutting the right side of the fixed block against the right side of the fixed block below a protruding ball, and finishing the construction and launching preparation work;

the first sliding block extends forwards to the front side of the third cavity due to the elastic force of the first spring, the limiting rod abuts against the rear side face of the sliding groove, the other end of the limiting rod abuts against the left side face of the trigger, and the trigger is difficult to pull to finish launching at the moment, so that the single-hand-held multifunctional self-locking trigger cannot work normally when being held by a single hand, and safety is guaranteed;

thirdly, when the crossbow needs to be launched, a user holds the wrench by the right hand, holds the third cavity by the left hand and enables the first sliding block to slide backwards, the limiting rod abuts against the left side surface of the sliding groove and slides leftwards, the limiting rod does not abut against the left side surface of the trigger any more to complete unlocking, meanwhile, the first rack on the first sliding block drives the first gear meshed with the first rack to rotate when the first sliding block slides backwards, the first gear rotates to enable the second rack to move leftwards by driving the second gear, and the abutting plate moves leftwards and increases clamping force on the crossbow wing device;

the fourth step, the trigger is pulled, the fixing block inclines leftwards, the protruding ball in the inclined state is difficult to limit the elastic rope to enable the elastic rope to drive the crossbow arrow to launch leftwards, then the user releases the hand, and the trigger rotates clockwise and resets due to the force of the coil spring;

the fifth step is because bernoulli's principle, and the concave block on the arrow launched receives the air current influence and can receive one and make it tend to open power, then opens at the arrow in-process concave block and makes the resistance increase of the wind that the arrow received make the arrow can not appear flying out of control under the condition of guaranteeing the shooting effect, if the human body is directly hit to the arrow in the flight this moment, because its great area of contact makes the human body can not be injured, has guaranteed the safety of shooting work.

Technical Field

The invention relates to the field of photography props, in particular to a prop crossbow for photography based on aerodynamics and a using method thereof.

Background

Often need use the bow crossbow in the ancient wind movie & TV drama, because the principle of bow crossbow leads to the stage property group comparatively simply to be difficult to produce the stage property crossbow that the shooting effect is better but not have the lethality, so the stage property crossbow that present movie & TV was used is mostly only dull-polished the tenon of crossbow arrow or is pulled loose the bow string, but this kind of processing method can not be shot closely as the feature, so need for a stage property crossbow that visual effect is good at present.

Disclosure of Invention

The invention aims to provide an aerodynamic-based prop crossbow for photography and a using method thereof, which are used for overcoming the defects in the prior art.

The tool crossbow for photography based on aerodynamics comprises a crossbow body and a crossbow arrow, wherein the crossbow body comprises a wooden rectangular block, a vertically through cavity is arranged in the wooden rectangular block, circular grooves are respectively arranged in the front wall and the rear wall of the cavity, a first rotating shaft is rotationally connected in the front circular groove and the rear circular groove, a coil spring is arranged on the rotating shaft in the circular grooves, the other end of the coil spring is fixedly arranged in the wall surface of the circular groove, a trigger is fixedly arranged on the rotating shaft in the cavity, the trigger extends downwards to the lower side of the cavity, the left side surface of the trigger tends to abut against the lower side of the left side surface of the cavity, a left-right through guide groove communicated with the cavity is arranged in the upper side surface of the wooden rectangular block, and a fixed block extending upwards into the guide groove is fixedly arranged on the upper side surface of the trigger, the upside of fixed block right flank has set firmly the outburst ball, set firmly on the wooden rectangular block downside and can protect the protective housing of trigger, the left cavity be equipped with the second cavity that link up around in the wooden rectangular block, can install the crossbow wing device in the second cavity, No. two cavities with between the cavity be equipped with the forward No. three cavities of opening in the wooden rectangular block, be equipped with in the No. three cavity and can prevent the unexpected pivoted locking mechanism of trigger, the crossbow arrow includes the arrow body, the arrow body is cylindric and the right side of the external anchor ring face of arrow body sets firmly the feather that the equiangular ring distributes, the left end face of arrow body sets firmly the metal post, the left surface of metal post sets firmly hinders the device that flies, hinder the device that flies can open when the arrow flies and prevent the crossbow arrow flies far away or flight out of control, and when the flying-stopping device takes effect, the crossbow arrow can directly shoot on the body surface of the actor without causing damage.

Optionally, crossbow wing device includes two bow-shaped plates, a butt piece has set firmly on the terminal surface of bow-shaped plate, the thickness of a butt piece with the high phase-match of No. two cavities, connect through the elasticity rope between the other end of bow-shaped plate.

Optionally, the locking mechanism includes a first through hole communicated with the first cavity from the inside to the right of the right wall of the third cavity, the first through hole is located on the upper side of the circular groove, a first sliding block is connected with the front and back of the third cavity in a sliding manner, the first sliding block is connected with the rear side of the third cavity through a first spring, a sliding groove with a right opening is arranged in the first sliding block, the left side of the sliding groove inclines towards the right back, two abutting blocks are fixedly arranged on the upper side and the lower side of the sliding groove, the two abutting blocks and the left side of the sliding groove are at the same angle, a limiting rod is connected with the first through hole in a sliding manner from left to right, the limiting rod extends into the sliding groove through the two abutting blocks towards the left, the left side of the limiting rod abuts against the left side of the sliding groove, a third abutting block is fixedly arranged on the ring surface of the limiting rod, the right side of the third abutting block abuts against the left side of the second abutting block, the limiting rod right-hand member face extends to in the cavity, slider left side is equipped with and can makes the launch in-process prevent the fixing device that crossbow wing device drops.

Optionally, fixing device including set firmly in a slider left surface flank of tooth rack a left, be equipped with in No. three cavity left sides and link up to a left No. two through-holes of No. two cavities, No. three through-hole internal rotation all around be connected with No. two axis of rotation and No. two be equipped with in the axis of rotation with a gear of a rack toothing, No. two downside on the axis of rotation a side internal rotation is connected with No. three axis of rotation around No. three through-holes, be equipped with in No. three axis of rotation with No. two gears of a gear toothing, No. two through-hole downside horizontal sliding connection have the flank of tooth upwards with No. two racks of No. two gear toothing, No. two racks extend to a left No. two cavity internal setting has the butt plate, the butt plate has certain elasticity.

Optionally, the flying prevention device comprises a metal column fixedly arranged on the metal column, the left end surface of the metal column is quadrilateral, a concave plate is connected to each side of the quadrilateral, the outward side surface of the concave plate is inwards concave, a diamond block is fixedly arranged at the center of the left end surface of the metal column, each side of the diamond block is connected to the inner side surface of the concave plate through a second spring,

a use method of a prop crossbow for photography based on aerodynamics comprises the following specific steps:

firstly, installing a crossbow wing device, respectively inserting a first abutting block into a second cavity from the front side and the rear side of the second cavity, abutting the first abutting block against the upper side, the lower side and the left side of the second cavity, then placing a crossbow arrow in a guide groove, abutting the crossbow arrow against the left side of a fixed block, straightening the right side of the fixed block by an elastic rope at the moment, and abutting the right side of the fixed block against the right side of the fixed block below a protruding ball, and finishing the construction and launching preparation work;

the first sliding block extends forwards to the front side of the third cavity due to the elastic force of the first spring, the limiting rod abuts against the rear side face of the sliding groove, the other end of the limiting rod abuts against the left side face of the trigger, and the trigger is difficult to pull to finish launching at the moment, so that the single-hand-held multifunctional self-locking trigger cannot work normally when being held by a single hand, and safety is guaranteed;

thirdly, when the crossbow needs to be launched, a user holds the wrench by the right hand, holds the third cavity by the left hand and enables the first sliding block to slide backwards, the limiting rod abuts against the left side surface of the sliding groove and slides leftwards, the limiting rod does not abut against the left side surface of the trigger any more to complete unlocking, meanwhile, the first rack on the first sliding block drives the first gear meshed with the first rack to rotate when the first sliding block slides backwards, the first gear rotates to enable the second rack to move leftwards by driving the second gear, and the abutting plate moves leftwards and increases clamping force on the crossbow wing device;

the fourth step, the trigger is pulled, the fixing block inclines leftwards, the protruding ball in the inclined state is difficult to limit the elastic rope to enable the elastic rope to drive the crossbow arrow to launch leftwards, then the user releases the hand, and the trigger rotates clockwise and resets due to the force of the coil spring;

the fifth step is because bernoulli's principle, and the concave block on the arrow launched receives the air current influence and can receive one and make it tend to open power, then opens at the arrow in-process concave block and makes the resistance increase of the wind that the arrow received make the arrow can not appear flying out of control under the condition of guaranteeing the shooting effect, if the human body is directly hit to the arrow in the flight this moment, because its great area of contact makes the human body can not be injured, has guaranteed the safety of shooting work.

The invention has the beneficial effects that: the detachable type solar water heater is simple in structure, can be freely disassembled and assembled by adopting a split type structure, occupies a small area after being disassembled, and is convenient to transport;

the automatic shooting device is provided with the self-locking mechanism, so that accidental shooting of the crossbow arrow can be prevented, and the safety of shooting work is ensured;

the bolt is provided with the special tenon according to the Bernoulli principle, so that the bolt cannot fly out of control under the condition of ensuring the shooting effect, and the bolt cannot cause excessive damage even if directly hitting a human body, thereby ensuring the safety of shooting personnel.

Drawings

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

FIG. 1 is a schematic representation of the structure of a crossbow body according to the present invention;

fig. 2 is a schematic structural view of a wing-crossbow device in accordance with the present invention;

FIG. 3 is a schematic structural view of a bolt of the present invention;

FIG. 4 is an enlarged schematic view of cavity number one 91 of FIG. 1;

FIG. 5 is a top cross-sectional view of cavity number three of FIG. 1;

FIG. 6 is an enlarged schematic view of the structure of the fixture of FIG. 1;

fig. 7 is an enlarged schematic structural view of the fly-stopping device in fig. 3.

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 7, according to an embodiment of the present invention, a prop crossbow for photography includes a crossbow body 11 and a crossbow arrow 12, where the crossbow body 11 includes a rectangular wooden block 13, a first cavity 91 penetrating up and down is formed in the rectangular wooden block 13, a circular groove 20 is respectively formed in front and rear walls of the first cavity 91, a first rotating shaft 14 is rotatably connected to the front and rear circular grooves 20, a coil spring 15 is disposed on the first rotating shaft 14 located in the circular groove 20, the other end of the coil spring 15 is fixedly disposed in a wall surface of the circular groove 20, a trigger 16 is fixedly disposed on the first rotating shaft 14 located in the first cavity 91, the trigger 16 extends downward to a lower side of the first cavity 91, and a left side surface of the trigger 16 tends to abut against a lower side surface of a left side surface of the first cavity 91, a left and right penetrating guide groove 21 communicating with the first cavity 91 is formed in an upper side surface of the rectangular wooden block 13, the side of going up of trigger 16 sets firmly to extend upwards fixed block 17 in the guiding groove 21, the upside of the fixed block 17 right flank sets firmly and protrudes ball 18, set firmly on the wooden rectangular block 13 downside can protect trigger 16's protective housing 19, the left of cavity 91 be equipped with the No. two cavities 92 that link up from beginning to end in the wooden rectangular block 13, can install crossbow wing device 102 in the No. two cavities 92, No. two cavities 92 with be equipped with the forward opening No. three cavities 93 in the wooden rectangular block 13 between the cavity 91, be equipped with in No. three cavities 93 and prevent the unexpected pivoted locking mechanism 103 of trigger 16, crossbow arrow 12 includes arrow body 22 cylindricly, arrow body 22 is and the right side of the outer ring surface of arrow body 22 sets firmly the feather 23 that has the equal angle annular to distribute, arrow body 22's left end face has metal column 24, the left side face of the metal column 24 is fixedly provided with a flying prevention device 104, the flying prevention device 104 can be used for preventing the bolt 12 from flying too far or out of control during flying of the bolt 12, and the bolt 12 can be directly shot on the body surface of an actor without injury when the flying prevention device 104 is effective.

Preferably, the crossbow wing device 102 comprises two bow-shaped plates 25, a first abutting block 26 is fixedly arranged on the end surface of each bow-shaped plate 25, the thickness of each first abutting block 26 is matched with the height of the second cavity 92, and the other ends of the bow-shaped plates 25 are connected through an elastic rope 27.

Preferably, the locking mechanism 103 includes a first through hole 28 in the first cavity 91, the first through hole 28 is located on the upper side of the circular groove 20, a first slider 29 is connected to the third cavity 93 in a front-back sliding manner, the first slider 29 is connected to the rear side of the third cavity 93 through a first spring 30, a sliding groove 32 with a right opening is arranged in the first slider 29, the left side of the sliding groove 32 inclines towards the right back, two abutting blocks 33 are fixedly arranged on the upper and lower sides of the sliding groove 32, the two abutting blocks 33 and the left side of the sliding groove 32 form the same angle, a limiting rod 34 is connected to the first through hole 28 in a left-right sliding manner, the limiting rod 34 extends into the sliding groove 32 through the second abutting block 33 towards the left, and the left side of the limiting rod 34 abuts against the left side of the sliding groove 32, no. three butt pieces 35 have set firmly on the anchor ring of restriction pole 34, No. three butt piece 35's right flank butt in No. two butt pieces 33's left surface, restriction pole 34 right-hand member face extends to in the cavity 91, slider 29 left side is equipped with and prevents in the messenger's emission process fixing device 105 that crossbow wing device 102 drops.

Preferably, the fixing device 105 comprises a first rack 36 fixed to the left side surface of the first sliding block 29, a second through hole 39 penetrating to the second cavity 92 leftwards is formed in the left side surface of the third cavity 93, a second rotating shaft 37 is rotatably connected to the front and back surfaces of the third through hole 39, a first gear 38 engaged with the first rack 36 is arranged on the second rotating shaft 37, a third rotating shaft 40 is rotatably connected to the front and back side surfaces of the third through hole 39 at the left lower side of the second rotating shaft 37, the third rotating shaft 40 is provided with a second gear 41 engaged with the first gear 38, a second rack 42 with the tooth surface upwards meshed with the second gear 41 is connected to the lower side surface of the second through hole 39 in a left-right sliding mode, the second rack 42 extends leftwards to the second cavity 92, and a butting plate 43 is fixedly arranged in the second cavity, wherein the butting plate 43 has certain elasticity.

Preferably, the flying prevention device 104 comprises a metal column 24 fixedly arranged on the metal column 24, the left end surface of the metal column 24 is quadrilateral, a concave plate 45 is connected to each side of the quadrilateral, the outward side surface of the concave plate 45 is inwards concave, a diamond 44 is fixedly arranged at the center of the left end surface of the metal column 24, each side of the diamond 44 is connected to the inner side surface of the concave plate 45 through a second spring 46,

a use method of a prop crossbow for photography based on aerodynamics comprises the following specific steps:

firstly, installing a crossbow wing device 102, respectively inserting a first abutting block 26 into a second cavity 92 from the front side and the rear side of the second cavity 92 and abutting the first abutting block to the upper side, the lower side and the left side of the second cavity 92, then placing a crossbow 11 in a guide groove 21 and abutting the crossbow to the left side of a fixed block 17, straightening the right side of the fixed block 17 by an elastic rope 27 and abutting the right side of the fixed block 17 to the right side of the fixed block 17 below a protruding ball 18, and finishing the construction and launching preparation work;

secondly, the first sliding block 29 extends forwards to the front side of the third cavity 93 due to the elastic force of the first spring 30, the limiting rod 35 abuts against the rear side face of the sliding groove 32, the other end of the limiting rod 34 abuts against the left side face of the trigger 16, and the trigger 16 is difficult to pull to finish emission, so that the single-hand-held dual-purpose electric gun cannot normally work when being held by a single hand, and safety is guaranteed;

thirdly, when the crossbow 12 needs to be launched, a user holds the wrench 16 with the right hand, holds the third cavity 93 with the left hand and enables the first sliding block 29 to slide backwards, the limiting rod 35 abuts against the left side surface of the sliding groove 32 and slides leftwards, the limiting rod 34 does not abut against the left side surface of the trigger 16 any more to complete unlocking, the first rack 36 on the first sliding block 29 drives the first gear 38 meshed with the first sliding block to rotate when the first sliding block 29 slides backwards, the second rack 42 moves leftwards through driving the second gear 41 due to the rotation of the first gear 38, and the abutting plate 43 moves leftwards and increases the clamping force on the wing crossbow device 102;

after the fourth step, the trigger 16 is pulled, at this time, the fixing block 17 tilts downwards to the left, at this time, the protruding ball 18 in the inclined state is difficult to limit the elastic rope 27, so that the elastic rope 27 drives the bolt 12 to launch leftwards, then the user releases the hand, and the trigger 16 rotates clockwise and resets due to the force of the coil spring 15;

the fifth step is because bernoulli's principle, and the concave-shaped block 45 on the arrow 12 launched receives the air current influence and can receive one and make it tend to open power, then the concave-shaped block 45 opens and makes the resistance increase of the wind that arrow 12 received make arrow 12 can not appear the flight out of control under the condition of guaranteeing the shooting effect in arrow 12 flight process, if the human body is directly hit to arrow 12 in the flight this moment, because its great area of contact makes the human body can not be injured, has guaranteed the safety of shooting work.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.