CN113945117A

CN113945117A - Automatic arrow device of going up of cross bow

Info

Publication number: CN113945117A
Application number: CN202010681563.7A
Authority: CN
Inventors: 刘吉昌
Original assignee: Poe Lang Enterprise Co Ltd
Current assignee: Poe Lang Enterprise Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-01-18

Abstract

The invention relates to an automatic arrow loading device for a cross bow, which is mainly arranged on the cross bow and accommodates a plurality of arrow bodies, and comprises: the arrow box is arranged on the top surface of the cross bow, an arrow placing channel is cut from the top end to the bottom end of the arrow box, and the arrow bodies are arranged in the arrow placing channel in a mutually stacked mode with the head ends facing the shooting direction; and a pressure arm, it sets up in putting the arrow channel of the arrow casket with one end pivot, and the pressure arm is pressed against the arrow body located in putting the arrow channel with another end normality; the arrow body at the lowest part of the plurality of arrow bodies falls on the cross bow through the operation of the cross bow, and the arrow body at the lowest part of the plurality of arrow bodies falls on the cross bow again through repeated operation after being fired and matched with the pressing of the pressing arm to fire again, so that the arrow body at the lowest part of the plurality of arrow bodies can fall on the cross bow to fire again, and the use of continuous shooting is provided by reducing the steps of drawing and supporting the arrow.

Description

Automatic arrow device of going up of cross bow

Technical Field

The invention relates to an automatic arrow-feeding device for a cross bow, which mainly relates to the technology in the field of bows and arrows, and the technology can reduce the arrow-drawing time and shorten the shooting process in the operation and use of bows and arrows, and provides continuous shooting without excessively and frequently supplementing and erecting arrows, namely the invention with excellent practicability.

Background

The bow and arrow is one of the popular sports items in the competition nowadays, and the mechanism of the common bow and arrow includes the related devices and accessories such as bowstring, gun body, percussion device, arrow, in competition, in order to provide convenience for users in competition, users can tie arrow bags at the waist and legs and place a plurality of arrows in arrow barrels, wherein, when the user shoots the arrow, the arrow is drawn out from the arrow bag again after the arrow is shot once, and the actions of installation, erection, aiming and the like are carried out again, for users who are dedicated to archery, the archery process must be completed in one go, and cannot be interfered by the outside, so that situations such as missing of foresight, misjudgment and the like caused by the interference of the outside in the archery process are avoided, however, the archery process must be repeated after one arrow is fired, and the archery process is very challenged by the users in physical, mental and spiritual aspects.

In view of the above situation, the present inventors have invested much time in studying related knowledge, and compared various merits, and have conducted research and development on related products, and have undergone many experiments and tests, and finally have developed a cross bow automatic arrow-mounting device to improve the above drawbacks, so as to meet the needs of the public.

Disclosure of Invention

The main technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide an automatic arrow mounting device for a crossbow, which avoids the steps of drawing and mounting an arrow, and further shortens the shooting step to achieve a one-time firing, so as to maintain extremely high accuracy and stability, and improve the problem that the arrow mounting in the prior art can be shot only by drawing, positioning and mounting one by one, which easily affects the stability and accuracy of the user in shooting.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an automatic arrow device of going up of cross bow mainly installs on the cross bow and the several arrow body of holding, and it includes: the arrow box is arranged on the top surface of the cross bow, an arrow placing channel is cut from the top end to the bottom end of the arrow box, and the arrow bodies are arranged in the arrow placing channel in a mutually stacked mode with the head ends facing the shooting direction; and a pressure arm, it sets up in putting the arrow channel of the arrow casket with one end pivot, and the pressure arm is pressed against the arrow body located in putting the arrow channel with another end normality; the arrow body at the lowest part of the plurality of arrow bodies falls on the cross bow through the operation of the cross bow, and the arrow body at the lowest part of the plurality of arrow bodies falls on the cross bow again through repeated operation after being fired and matched with the pressing of the pressing arm to fire again, so that the arrow body at the lowest part of the plurality of arrow bodies can fall on the cross bow to fire again, and the use of continuous shooting is provided by reducing the steps of drawing and supporting the arrow.

According to the features described above, the present invention has the advantages that the user can provide a plurality of arrow-supporting bodies through the installation of the arrow box, the arrow-supporting bodies can be simultaneously accommodated in the arrow-accommodating channel of the arrow box, and the plurality of arrow-supporting bodies can be accurately dropped to provide shooting for use in accordance with each shooting by means of the pressing arm in cooperation with the shooting operation of the cross bow.

The invention has the advantages that the steps of drawing and erecting the arrow are eliminated, the shooting step is further shortened, the firing is achieved in one go, the extremely high precision and stability are maintained, the problem that the shooting can be carried out only by drawing, positioning and installing the arrow one by one in the prior art is solved, and the shooting stability and accuracy of a user are easily influenced by the mode.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of the present invention assembled with a cruciform arch.

Fig. 2 is an exploded perspective view of the present invention and a cruciform bow.

Fig. 3 is an exploded perspective view of the present invention.

FIG. 3A is a perspective view of the arrow box in another direction.

Fig. 4 is an exploded perspective view of the buckle assembly of fig. 2.

FIG. 5 is a cross-sectional view of the V-V line shown in FIG. 1.

Fig. 6 is a schematic view showing the action of the bow string of the fastening assembly moving toward the rear end of the gun body and first limiting the falling of the lowermost arrow body.

FIG. 6A is a schematic view showing the action of the bowstring moving to the string fastening assembly and pushing the stopper to swing.

FIG. 7 is a schematic view of the action of the bow string of FIG. 6A pushing against the stop and being constrained to a rear position to be fired with the lowermost arrow body falling.

Fig. 8 is a schematic diagram of the movement of the limiting block to release the safety state and to engage the positioning ball with the second caulking groove in a displacement manner.

FIG. 9 is a schematic view of the action of the lever member being pressed to drive the linkage block to swing, and the linkage block being released from its swinging motion and the stopper being pivoted by the bowstring pushing the stopper with elasticity.

FIG. 9A is a schematic view of the stop pivoting and the bowstring being out of the limit to impact and fire the arrow.

Fig. 10 is a perspective view of the present invention with a sight attached.

The reference numbers in the figures illustrate:

1 cross bow 11 gun body

111 front end 112 back end

113 arrow placing part 114 sliding rail

12 bowstring component 121 chord arm

122 bowstring

13 fastening assembly 131 casing seat

131A bottom case 131B cover

131C groove

132 stop 132A first caulking groove

132B second caulking groove 132C control rod

133 linkage block 134 chamber

135 first opening 136 second opening

137 butting block

14 trigger member 15 stop

16 torsion spring 17 elastic member

18 positioning bead 181 elastic element

19 axle 191 auxiliary rod

2 arrow body 21 arrow head

22 arrow tail 23 arrow shaft

3 arrow box 31 arrow placing channel

311 block 312 groove

313 first groove section 314 second groove section

315 third slot segment 32 shield slot

4 pressing arm 41 positioning groove

5 spring 6 sighting device

Detailed Description

In order to clearly illustrate the above objects and functions of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to fig. 1 to 9A, an automatic arrow loading device of a cross bow according to the present invention is mainly installed on a cross bow 1 and accommodates a plurality of arrow bodies 2, and includes: an arrow box 3 is a long box-shaped body, the arrow box 3 is arranged on the top surface of the cross bow 1, the arrow box 3 is provided with an arrow placing channel 31 from the top end to the bottom end, in addition, one end in the arrow placing channel 31 is further provided with a block body 311, the top surface of the block body 311 is concavely provided with a groove 312 which is cylindrical, and the plurality of arrow bodies 2 are arranged in the arrow placing channel 31 in a mutually overlapped way with the head ends facing the block body 311; and a pressing arm 4, it is put in putting the arrow channel 31 of the arrow box 3 with a pivot of one end, and the pivot of the pressing arm 4 is located above the block 311, and the pressing arm 4 corresponds to the recess 312 and sets up a locating slot 41 concavely, another both ends equipped with a spring 5 insert in recess 312 of the block 311 and locating slot 41 of the pressing arm 4 separately, and the other end of the pressing arm 4 is pressed against the arrow body 2 located in putting the top in the arrow channel 31 under the elasticity of the spring 5 in the normal state; the lowermost arrow body 2 of the plurality of arrow bodies 2 falls on the cross bow 1 through the operation of the cross bow 1, and the arrow bodies 2 can fall on the cross bow 1 to be fired again through repeated operation after being fired and matched with the pressing of the pressing arm 4, so that the lowermost arrow body 2 of the plurality of arrow bodies 2 can fall on the cross bow 1 to be fired again for shooting again, thereby reducing the steps of drawing arrows and erecting arrows and providing the use of continuous shooting.

According to the above description, the cross bow 1 and the present invention are explained in terms of structure, and then the continuous shooting process is performed, the present invention is mainly explained by taking the cross bow 1 as the main bow, but not limited to the use of other bows, please refer to fig. 2 to 4, regarding the structural design of the arrow box 3, the arrow placing channel 31 is further divided into a first slot section 313, a second slot section 314 and a third slot section 315, the first slot section 313, the second slot section 314 and the third slot section 315 are communicated with each other, the arrow bodies 2 respectively have an arrow head 21, an arrow tail 22 and an arrow shaft 23 connecting the arrow head 21 and the arrow tail 22, the first slot section 313 corresponds to the arrow head 21 of the arrow body 2 and provides accommodation, the third slot section 315 corresponds to the arrow tail 22 of the arrow body 2 and provides accommodation and positioning, the second slot section 314 corresponds to the arrow shaft 23 of the arrow body 2, and the slot opening width of the second slot section 314 is smaller than the first slot section 313, A third slot section 315, where the wall surface of the second slot section 314 of the arrow slot 31 abuts against the arrow shaft 23 of each arrow body 2 for limiting, which mainly prevents the arrow bodies 2 from being inclined in the process of being accommodated in the arrow slot 31, and prevents the arrow bodies 2 from rotating by overlapping a plurality of arrow bodies 2, so that each arrow body 2 can be kept at the same position, arrangement direction, arrangement angle, etc. when falling into the cross bow 1 to wait for firing, and a user can maintain consistency of arrangement and stability of shooting of the arrow bodies 2 in firing (see fig. 3 and 3A); except that each arrow body 2 is limited by the design of the arrow placing channel 31, the arrow bodies 2 are prevented from being separated by the pressing of the pressing arm 4, the pressing arm 4 is pivotally assembled with the arrow placing channel 31 of the arrow box 3 by one end, the other end of the pressing arm 4 is in a barb shape and presses against the uppermost arrow body of the arrow bodies 2, the pressing arm 4 is arranged to prevent the uppermost arrow body 2 from being separated, the pressing arm 4 can normally press against the uppermost arrow body 2 by the elastic force of the spring 5, and after the lowermost arrow body 2 is arranged, the pressing arm 4 is continuously pressed downwards by the elastic force of the spring 5, so as to continuously push the lowermost arrow body 2 to fall into the crossbow 1 and wait for the next shooting, which is mainly described with reference to fig. 6 and 9.

The following description is about the structure of the crossbow 1, because there are two operation modes of the crossbow 1, one is a hand-pulling fixing mode, and the other is a swing-controlled tensioning mode using additional mechanisms, such as a swing arm mechanism, the present invention is not limited by the accompanying drawings in the use of the crossbow 1, all the crossbow 1 are the protection scope of the present invention, and the following description is provided in the disclosure of the accompanying drawings, the crossbow 1 further comprises a gun body 11, a bowstring component 12 and a string-fastening component 13, the gun body 11 comprises a front end 111 and a rear end 112 and is provided with an arrow-placing part 113 on the top surface of the front end 111, the arrow box 3 is erected on the arrow-placing part 113 of the gun body 11, the arrow-placing part 113 is formed in a downward concave manner, a sliding track 114 is formed between the bottom end of the arrow box 3 and the arrow-placing part 113, and the pressing arm 4 is further pushed against a plurality of arrow bodies 2 to drop the arrow-placing part 113, the bow-string component 12 is disposed on the gun body and includes a string arm 121 in a half-moon shape and a bow string 122, the string arm 121 is disposed on the gun body 11 (the invention takes the case that the string arm 121 penetrates the front end 111 of the gun body 11 as the main embodiment), two ends of the bow string 122 are respectively fixed on two ends of the string arm 121, and the bow string 122 is located in the sliding track 114 and is displaced relative to the front end 111 and the rear end 112 of the gun body 11; the string fastening assembly 13 is mounted on the gun body 11 and close to the rear end 112, the string fastening assembly 13 includes a housing 131, a limiting block 132 of an inverted L shape, a link block 133 of a regular L shape, a wrench 14, a stopper 15, a torsion spring 16, and an elastic member 17, a chamber 134 is disposed in the housing 131, the chamber 134 has a first opening 135 and a second opening 136 which are communicated with each other and adjacently disposed, a resisting block 137 is disposed at a central position in the chamber 134, the resisting block 137 is formed by extending a sidewall surface in the chamber 134, the resisting block 137 and two sides of a top bottom of the chamber 134 are disposed at an interval, the limiting block 132 of an inverted L shape is slidably disposed between an inner top wall surface of the resisting block 137 and an inner top wall surface of the chamber 134 at one end, the limiting block 132 is correspondingly recessed with a first embedding groove 132A and a second embedding groove 132B, the first embedding groove 132A and the second embedding groove 132B are disposed at an interval, and the limiting block 137 corresponds to the first embedding groove 132A, The second caulking groove 132B is provided with a positioning bead 18, and the inside of the abutting block 137 is provided with an elastic member 181 for elastically pushing the positioning bead 18 to be clamped in the first caulking groove 132A and the second caulking groove 132B; one end of the trigger member 14 is pivotally disposed in the accommodating chamber 134, and the other end of the trigger member 14 protrudes out of the second opening 136; the linkage block 133 is pivoted in the accommodating chamber 134 and located between the abutting block 137 and the trigger member 14, the linkage block 133 is overlapped and abutted against the trigger member 14 and abutted against the other end of the limiting block 132, and two ends of the elastic member 17 are respectively abutted against the linkage block 133 and the abutting block 137; the stopper 15 is pivotally assembled in the accommodating chamber 134 at one end and normally abuts against the linkage block 133, the other end of the stopper 15 protrudes out of the first opening 135, a shaft rod 19 is convexly arranged in the accommodating chamber 134 corresponding to the pivot assembly of the stopper 15, the stopper 15 is pivotally assembled on the shaft rod 19 and swings around the shaft rod 19 as an axis, a dodging groove is further concavely arranged on one side of the stopper 15 corresponding to the arrow body 2, the dodging groove mainly has the function of providing installation and accommodation of the torsion spring 16, more importantly, the falling of the arrow body 2 is avoided, the phenomenon that the backswing of the stopper 15 collides with the arrow body 2 to cause mistaken striking is avoided, an auxiliary rod 191 is additionally arranged in the accommodating chamber 134, the torsion spring 16 is 8-shaped and is respectively sleeved on the shaft rod 19 and the auxiliary rod 191 at two ends, and the torsion spring 16 elastically drives the reset of the stopper 15 after swinging; two sides of the limited block 132 further protrude a control rod 132C, each control rod 132C protrudes from the housing seat 131 and is located on the sliding rail 114, and the control rod 132C pulls the limited block 132 to move and change the locking ball 18 to be locked in the first caulking groove 132A and the second caulking groove 132B.

According to the above description of the structure of the arrow box 3 and the crossbow 1, referring to the continuous operation description of fig. 5 to 9A (refer to the arrow direction in the drawings), and referring to fig. 3 and 4 as an auxiliary reference, before the user shoots, the pressing arm 4 is pivoted and swung to leave the barb-shaped end from the arrow slot 31, then a proper number of arrow bodies 2 are placed according to the height of the arrow slot 31 of the arrow box 3, when the arrow bodies 2 are put into the rear pivoting and pressing arm 4 to return to the original position, and since the bow string 122 is not tightened toward the rear end 112 of the gun body 11, the bow string 122 is located at the front end of the sliding track 114 and limits the arrow bodies 2 from falling onto the arrow placing part 113, and after the user installs the arrow bodies 2, the user completes the pre-firing operation flow of the crossbow 1, the bow string 122 is pulled toward the stopper 15 of the buckle assembly 13 in the sliding track 114, and the stopper 15 has an elastic pivot of the torsion spring 16, so that the stopper 15 has an elastic pivot, The reset function is that the exposed end of the stopper 15 is pushed by the pulling of the bowstring 122 to swing towards the containing chamber 134 until the bowstring 122 exceeds the stopper 15, the stopper 15 is restored to the original position by the elastic force of the torsion spring 16 to limit the launching of the bowstring 122, and the arrow body 2 at the lowest position of the arrow-placing channel 31 can fall to the arrow-placing part 113 of the gun body 11 to wait for firing due to the limitation of the bowstring 122 being removed; the stopper 15 can limit the emission of the bowstring 122 because the stopper 132 is initially engaged with the first groove 132A by the positioning bead 18, and the stopper 132 and the linkage 133 are pressed against each other to prevent the linkage 133 from pivoting, so that the linkage 133 presses against the stopper 15 to limit the emission of the bowstring 122.

Continuing the above description, after determining that the arrow body 2 falls down on the arrow placing portion 113 of the gun body 11, pushing each control rod 132C located on the limiting block 132, and moving the limiting block 132 forward, so that the positioning bead 18 jumps off from the first caulking groove 132A and is clamped on the second caulking groove 132B, at this time, the drag between the limiting block 132 and the linkage block 133 can be removed, and the linkage block 133 can form a pivotable state, the user lifts the gun body 11 and presses the trigger member 14 after confirming the direction and position, the pressing direction of the trigger member 14 presses toward the rear end 112 of the gun body 11, and the end of the trigger member 14 located in the accommodating chamber 134 pushes the linkage block 133 to pivot, so that the linkage block 133 originally pushes against one end of the limiting block 132 to swing toward the abutting block 137, and the limitation of the linkage block 133 abutting against one end of the stop member 15 is removed, at this time, the stop member 15 is elastically swung due to the elastic force of the bow 122 being reset, the exposed end of the stopping member 15 swings towards the arrow body 2 placing position in a pivot mode and slightly pushes the arrow body 2 to move forwards, the bowstring 122 can be ejected towards the arrow body 2 after no limitation exists, the arrow body 2 can be instantly ejected and shot towards a target object after being ejected by the bowstring 122, after the completion of the operation process is repeated, the next arrow body 2 can continuously fall down on the arrow placing part 113 of the gun body 11 and continuously shot until the arrow body 2 arranged in the arrow placing channel 31 is used and replenished again, and for a user, the arrow rest, the aiming and the like do not need to be repeatedly drawn out in the shooting process, so that continuous shooting can be achieved at one stroke, the shooting stability can be improved, the shooting accuracy can be improved, the time can be greatly shortened in the shooting process, and the competition fluency is facilitated.

According to the above description, and discussing other technical features of the present invention in detail, firstly, the present invention further includes a bottom case 131A and a cover 131B on the design of the case base 131, the accommodating chamber 134 is formed by covering the cover 131B on the bottom case 131A, the bottom case 131A and the cover 131B are respectively provided with a cut-out 131C corresponding to the protruding extension of each control rod 132C of the limiting block 132, and each control rod 132C protrudes from the cut-out 131C so that a user can control and dial the product reliably, please refer to fig. 4; the casing seat 131 of the string fastening assembly 13 has one end installed in the gun body 11 and the other end protruding out of the gun body 11, in addition, the arrow box 3 is further provided with a protection groove 32 corresponding to the protrusion of the casing seat 131, the protection groove 32 is not communicated with the arrow placing channel 31, the arrow box 3 is installed on the top surface of the gun body 11 and covers the casing seat 131 with the protection groove 32 to prevent the foreign matter from entering and affecting the firing operation, please see fig. 3A; finally, the present invention can provide a sight 6 at the top of the arrow box 3, close to the rear end 112 of the gun body 11, to increase the accuracy of shooting.

Summarizing the technical characteristics of the invention, the prior cross bow has to shoot a single arrow and then extract and re-mount the arrow again, which is undoubtedly not only to interrupt the spirit of the user in competition, but also to change the original aiming degree after re-mounting the arrow, so the invention utilizes the arrangement of the arrow box 3 to provide a plurality of arrow bodies 2 which can be directly arranged in the arrow-mounting groove 31, the user can continuously shoot the arrow bodies 2 only by repeatedly operating the shooting process, the arrow extraction and re-aiming are not needed, the continuous shooting can be completed in one go, the time is saved, the better precision and stability can be maintained, for field hunters, the running of the hunting objects is extremely fast, the shooting root of the arrow which is gradually leaned is not as much as to install the lower arrow, the hunting objects can be shot fast and continuously shot, so the plurality of arrow bodies 2 can be shot rapidly and continuously shot through the installation of the arrow box 3, to capture the prey, it is obvious that the present invention completely improves the difficulties and problems encountered in shooting by the existing cross bow, and further achieves the effect of rapid and continuous shooting, so the present invention has certain progress and practicability for the relevant users.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an automatic arrow device of going up of cross bow, mainly installs on the cross bow and the several arrow body of holding, its characterized in that includes:

the arrow box is arranged on the top surface of the cross bow, an arrow placing channel is cut from the top end to the bottom end of the arrow box, and the arrow bodies are arranged in the arrow placing channel in a mutually stacked mode with the head ends facing the shooting direction;

and a pressure arm, it sets up in putting the arrow channel of the arrow casket with one end pivot, and the pressure arm is pressed against the arrow body located in putting the arrow channel with another end normality;

the arrow body at the lowest part of the plurality of arrow bodies falls on the cross bow through the operation of the cross bow, and the arrow body at the lowest part of the plurality of arrow bodies falls on the cross bow again through repeated operation after being fired and matched with the pressing of the pressing arm to fire again, so that the arrow body at the lowest part of the plurality of arrow bodies can fall on the cross bow to fire again, and the use of continuous shooting is provided by reducing the steps of drawing and supporting the arrow.

2. The automatic archery device of claim 1, wherein the arrow-receiving slot of the arrow box is further divided into a first slot section, a second slot section and a third slot section, the first slot section, the second slot section and the third slot section are communicated with each other, the arrow bodies are respectively provided with an arrow head, an arrow tail and an arrow rod connecting the arrow head and the arrow tail, the first slot section corresponds to the arrow head of the arrow body and provides accommodation, the third slot section corresponds to the arrow tail of the arrow body and provides accommodation and positioning, the second slot section corresponds to the arrow rod of the arrow body, the width of the slot opening of the second slot section is smaller than that of the first slot section and that of the third slot section, and the wall surface of the second slot section of the arrow-receiving slot is limited by abutting against the arrow rod of each arrow body.

3. The automatic archery device according to claim 1, wherein a block is further disposed at one end of the archery channel, a groove is recessed in the top surface of the block, a positioning groove is recessed in the pressing arm corresponding to the groove, two ends of a spring are respectively inserted into the groove of the block and the positioning groove of the pressing arm, and the other end of the pressing arm is normally pressed against the uppermost arrow in the archery channel by the elastic force of the spring.

4. The automatic archery device according to claim 2, wherein a block is further disposed at one end of the archery channel, a groove is recessed in the top surface of the block, a positioning groove is recessed in the pressing arm corresponding to the groove, two ends of a spring are respectively inserted into the groove of the block and the positioning groove of the pressing arm, and the other end of the pressing arm is normally pressed against the uppermost arrow in the archery channel by the elastic force of the spring.

5. A crossbow automatic archery device according to any one of claims 1 to 4, wherein the crossbow further comprises a gun body, a bowstring component and a string fastening component, the gun body comprises a front end and a rear end and is provided with a top surface with an arrow placing part at the front end, the arrow box is erected on the arrow placing part of the gun body, a sliding track is formed between the arrow box and the arrow placing part, the pressing of the pressing arm further pushes a plurality of arrows to fall on the arrow placing part, the bowstring component is arranged on the gun body and comprises a string arm and a bowstring, the string arm is arranged on the gun body, the two ends of the bowstring are respectively fixed on the two ends of the string arm, and the bowstring is positioned in the sliding track and is displaced relative to the front end and the rear end of the gun body;

the string fastening assembly is arranged on the gun body and close to the rear end, the string fastening assembly comprises a shell seat, a limiting block, a linkage block, a wrench part, a stopping part, a torsion spring part and an elastic part, a containing chamber is arranged in the shell seat, the containing chamber is provided with a first opening and a second opening which are mutually communicated and adjacently arranged, a resisting block is arranged at the central position in the containing chamber, the resisting block and the two sides of the top bottom of the containing chamber are arranged at intervals, the limiting block is in an inverted L shape, one end of the limiting block is slidably arranged between the resisting block and the wall surface of the containing chamber, the limiting block is concavely provided with a first caulking groove and a second caulking groove corresponding to the resisting block, the resisting block is provided with a positioning bead corresponding to the first caulking groove and the second caulking groove of the limiting block, and the elastic part is arranged in the resisting block and elastically pushes the positioning bead to be clamped in any one of the first caulking groove and the second caulking groove;

one end of the trigger piece is pivoted to the containing chamber, and the other end of the trigger piece is protruded out of the second opening;

the linkage block is pivoted in the containing chamber and positioned between the abutting block and the trigger piece, the linkage block is laminated on the trigger piece and abuts against the other end of the limiting block at the same time, and two ends of the elastic piece respectively abut against the linkage block and the abutting block;

the stop member is pivoted in the accommodating chamber at one end and normally abuts against the linkage block, the other end of the stop member protrudes out of the first opening, a shaft rod is convexly arranged in the accommodating chamber corresponding to the pivot group of the stop member, the stop member is pivoted on the shaft rod and swings by taking the shaft rod as an axis, an auxiliary rod is arranged in the accommodating chamber and is adjacent to the shaft rod, the torsion spring member is in an 8 shape, the two ends of the torsion spring member are respectively sleeved on the shaft rod and the auxiliary rod, and the torsion spring member elastically drives the stop member to reset after swinging.

6. The automatic archery device of the cruciform bow of claim 5, wherein the two side faces of the limiting block further respectively protrude with a control rod, each control rod penetrates out of the shell seat and is positioned on the sliding rail, and the shifting of each control rod controls the displacement of the limiting block and changes the clamping of the positioning ball in any one of the first caulking groove and the second caulking groove.

7. The automatic archery device according to claim 6, wherein the housing base further includes a bottom case and a cover, the chamber is formed by the cover covering the bottom case, the bottom case and the cover are provided with a groove corresponding to the protruding portion of each control rod of the limiting block, and each control rod protrudes from the groove.

8. The automatic archery device of claim 7 wherein the casing seat of the string fastening assembly is mounted at one end in the gun body and at the other end protrudes out of the gun body, and the projection of the rocket box corresponding to the casing seat is further recessed with a protection slot, and the rocket box is mounted on the top surface of the gun body and covers the casing seat with the protection slot.

9. The crossbow automatic archery device of claim 1, wherein the top surface of one end of the arrow box near the rear end of the gun body is further provided with a sighting device.

10. The crossbow automatic archery device of claim 7, wherein the top surface of one end of the arrow box near the rear end of the gun body is further provided with a sighting device.