阅读说明：本技术 扳机二段保险装置 (Two-stage safety device for trigger ) 是由 刘吉昌 于 2018-07-23 设计创作，主要内容包括：本发明一种扳机二段保险装置,主要技术在于准备击发前进行弓箭的更换时,须先滑动保险滑块以限制掣动件的枢摆,避免不小心误触而击发,接着通过弹力件的弹力拉动连结片朝向第二端拉动位移,又该连结片的拉动位移得以解除定位块枢摆的限制,让该定位块能够朝剖槽枢摆并凸出,该定位块的枢摆凸出即可挡止弓弦的击发,以防止不小心空弦击发时伤及使用者、或是误发弓箭而造成危险的发生,只需待使用者将弓箭重新架回十字弓后,再次推移保险滑块并带动连结片由第二端滑移至第一端后,即可解除掣动件的限制而可以重回预备击发的状态。(The invention relates to a trigger two-section safety device, which mainly adopts the technical scheme that when a bow and an arrow are replaced before being fired, a safety slide block is firstly slid to limit the pivot swing of a brake piece to avoid firing caused by accidental touching, then a connecting piece is pulled to move towards a second end through the elasticity of an elastic piece, the limit of the pivot swing of a positioning block is relieved by the pulling movement of the connecting piece, the positioning block can pivot swing towards a splitting groove and protrude, the pivot swing of the positioning block can be stopped by the protruding pivot swing of the positioning block, so that the danger caused by hurting a user or mistakenly firing the bow and the arrow when the bow and the arrow are fired carelessly is prevented, and the limit of the brake piece can be relieved and the pre-firing state can be restarted only after the user puts the bow and the arrow back to a cross bow again, pushes the safety slide block again and drives the connecting piece to slide from the second end to the first end.)

1. The utility model provides a trigger two-stage segment safeties, its installs in a percussion device, its characterized in that includes:

a shell seat, it has a first end, a second end and a bottom end between the first end and the second end, the interior of said shell seat is formed with an assembly chamber, and said first end is equipped with a recessed groove and communicated with said assembly chamber, and in addition, the periphery of said shell seat is transversely equipped with two long groove holes which are mutually correspondent and communicated with said assembly chamber, and said bottom end is equipped with an opening communicated with said assembly chamber;

a percussion group, it is installed in the assembly chamber, the percussion group includes a stopper, a percussion piece, a safety slide block, a connecting piece, an elastic piece and a locating block, the stopper is pivoted in the assembly chamber and one end is protruded out of the opening, the percussion piece is pivoted in the assembly chamber and close to the cutting groove, the percussion piece is blocked with one end of the stopper after being pivoted in the assembly chamber, the percussion piece is spaced from the stopper when not pivoted, the safety slide block is installed in the assembly chamber and corresponds to each long groove hole, the safety slide block corresponds to two long groove holes and protrudes two slide bars, each slide bar penetrates out of the corresponding long groove hole;

the connecting piece is slidably arranged in the assembling chamber and is stacked with the triggering piece, the movement of the safety slide block pushes the connecting piece to move, in addition, one end of the connecting piece, which corresponds to the second end, is provided with a through hole, a shaft rod is arranged in the assembling chamber and is adjacent to one end of the connecting piece, which is provided with the through hole, and two ends of the elastic piece are respectively sleeved on the shaft rod and the through hole;

the positioning block is pivoted in the assembling chamber and positioned at one side of the cutting groove, the connecting piece moves towards the position of the positioning block to limit the pivoting of the positioning block, and when the limitation of the connecting piece is removed, the positioning block pivots and protrudes out of the cutting groove; the safety slide block moves towards the first end and pushes the connecting piece to move, the connecting piece moves to pull the elastic force of the elastic piece to accumulate force, and the connecting piece also limits the pivot swing of the positioning block to form a striking mode;

when the trigger device is in a trigger mode and the arrow is to be replaced, the safety slide block needs to be switched again to move towards the second end direction, the connecting piece is pulled by the elastic force of the elastic piece to slide towards the second end direction after the limitation of the safety slide block is removed, so that the connecting piece is removed from limiting the pivot swing of the positioning block, and the positioning block is pivoted towards the cutting groove direction to prevent the hollow string from shooting and being injured.

2. The trigger two-stage safety device according to claim 1, wherein the housing further comprises a first housing and a second housing, the first housing and the second housing cover each other, and a sliding groove is recessed on a side of the second housing corresponding to the connecting piece, and the connecting piece is slidably assembled in the sliding groove.

3. The trigger two-stage safety device according to claim 2, wherein the link plate further comprises a front driving section, a rear driving section and a middle driving section located between the front driving section and the rear driving section, the front driving section is provided with a groove corresponding to the positioning block and limiting the pivot swing of the positioning block, the through hole is arranged in the rear driving section, the top end of the middle driving section is further provided with at least one pushing piece in a protruding manner, the safety slide block is mutually pushed against the sliding rod and the at least one pushing piece on the side corresponding to the link plate, the pushing between the safety slide block and the link plate switches between the percussion mode and the percussion release mode, the safety slide block moves towards the second end, and the elastic member pulls the link plate to move by elasticity, so that the positioning block can pivot swing to protrude out of the cut groove to limit the hollow string.

4. The trigger two-stage safety device according to claim 3, wherein one end of the positioning block is pivotally assembled in the assembly chamber, and the other end of the positioning block is provided with a driving lever protruding from a side edge, and the position of the driving lever is the same as that of the link plate; in addition, a reset spring is arranged in the assembly chamber and positioned below the positioning block, and two ends of the reset spring respectively support the wall surface of the assembly chamber and the bottom surface of the positioning block: after the connecting piece moves towards the positioning block, the deflector rod enters the step groove, and the positioning block presses against the return spring to generate elastic force; the connecting piece moves towards the direction of the safety slide block, the pressing of the deflector rod of the positioning block can be released, and the return spring pushes the positioning block to return by elasticity and partially protrudes to the cutting groove.

5. The trigger two-stage safety device according to claim 4, wherein the trigger further comprises a first hook, a second hook and a pushing part, the first hook partially protrudes out of the groove, the first hook is used to hook and abut against the bow string at the position to be triggered, the second hook corresponds to the stopper, the stopper has a limiting part corresponding to the second hook when the trigger pivots and restricts the bow string, the limiting part and the second hook abut against each other to restrict the pivoting of the trigger, the pushing part is located above the safety slide, a spring is installed between the pushing part and the wall surface of the assembly chamber, two ends of the spring respectively abut against the pushing part and the inner wall surface of the assembly chamber, and the spring drives the trigger to pivot by elasticity.

6. A trigger two-stage safety device according to claim 5, wherein one end of the trigger is provided with a limiting control part, the other end of the trigger is a pushing part, a connecting control part is arranged between the limiting control part and the pushing part, the assembling chamber is convexly provided with a stop block corresponding to the pushing part, the stop block and the pushing part are arranged at intervals, the stop block penetrates through a group of holes, a limiting spring group is arranged in the group of holes in a penetrating manner, one end of the limiting spring group is elastically assembled in the group of holes when being propped against the other end of the pushing part, the safety slide block can limit the pivotal swing of the trigger when moving towards the second end and shielding the group of holes, the connecting control part is connected with a connecting rod, the connecting rod is further connected with a trigger, and the trigger is connected with the connecting rod to link the pivotal swing of the trigger.

Technical Field

The invention relates to a trigger two-section safety device, in particular to a technology applied to the field of a cross bow, which mainly aims to smoothly replace a bow and an arrow before the bow and the arrow are fired without causing dangerous matters of random firing so as to achieve the effect of safety protection. The invention is extremely good in practicability.

Background

The bow and arrow is one of the famous sports projects nowadays, and more enthusiasts can carry out the experience of shooting the arrow in a special field, and although the bow and arrow is one kind of sports, certain danger still exists, so that the related owners are provided with special insurance mechanisms on the design of the bow and arrow to prevent any dangerous things from happening.

The bow has many kinds, such as ancient crescent bows, recurve bows, compound bows, crossbars, etc., and the operation modes of the bow and the arrow are different, but the crossbars are discussed at present, and the crossbars are also called crossbows (Crossbow from english) in ancient times, are shooting weapons, are bows with arms, and mainly comprise Crossbow arms (Crossbow bodies), Crossbow bows (Crossbow wings), bows, crossbars and crossbows. The requirements on users are lower because the users do not need to aim at the same time when the strings are pulled, but the filling time is much longer than that of a common bow and arrow, and importantly, the cross bow has longer range, stronger lethality and higher hit rate than that of the common bow and arrow. So that many fans are very interested in the attempts of the crossbow. The common cross bow is used in a mode that the safety is started after the bowstring is pulled to be positioned, so that the hollow string of the bowstring is prevented from being triggered, then the bow is positioned after the cross bow, then the limit of the safety can be relieved, the trigger can be buckled and pressed to trigger, the cross bow is pushed to move towards a target object by using the instant impulsive force of the bowstring, and the basic use mode of the cross bow is described.

However, for the first trial and experience of the user, the operation error is easy to occur, wherein the size of the misplaced arrow is the majority, because the body channel of the bow also has the size difference, the installation of the bow with different thickness, length and the like can be provided, so the misplacement is easy for the beginner, and another situation is that the user encounters the prey with different volume and size during hunting and must replace the arrow, however, after the user has installed the bow on the bow, the safety connecting sheet of the bow is pushed by the safety slide block and is clamped against the safety positioning block, and the displacement of the safety slide block also releases the resisting of the limiting push rod, the bow is in the state of cocking the trigger at any time, if the operation of replacing the bow is carried out at present, a problem occurs that the bow is already in the state of cocking, when a user takes the cross bow out of the pen, the condition of string firing is easy to occur, even the limit of the bow string is released when the user pulls the cross bow and the trigger is pulled down, so that the cross bow and the arrow can be sent as expected, and the dangerous situation of accidental injury is caused, and the situation can also occur when the cross bow and the arrow are damaged and need to be replaced; however, although the trigger can be limited by the safety opening of the safety slide block, the safety positioning block at the front end is continuously limited because the safety connecting piece is not reset as required, and the situation that the trigger is not in a string-free state may occur. Therefore, the related companies must again study and think about the danger that beginners, users, and the like may pose in the process of replacing the arrow, and how to improve the use of the pantograph so as to maintain a certain degree of safety when replacing the arrow in the cocked state.

In view of the above situation, the present inventors have invested much time in studying related knowledge, comparing the merits with each other, conducting research and development of related products, and after many experiments and tests, finally developing a trigger two-stage safety device to improve the above disadvantages, so as to meet the needs of the public.

Disclosure of Invention

The invention provides a trigger two-stage safety device, aiming at improving the dangerous things that the existing cross bow is easy to have string firing, mistakenly hit the cross bow and the like when the existing cross bow is in a state of being capable of being fired at any time, and when a user takes out and replaces the cross bow and the arrow in a state of being fired at any time, the safety device has certain safety after starting the safety device and prevents string firing from happening.

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

a trigger two-section safety device is arranged on a trigger device and comprises: a shell seat, it has a first end, a second end and a bottom end between the first end and the second end, the interior of said shell seat is formed with an assembly chamber, and said first end is equipped with a recessed groove and communicated with said assembly chamber, and in addition, the periphery of said shell seat is transversely equipped with two long groove holes which are mutually correspondent and communicated with said assembly chamber, and said bottom end is equipped with an opening communicated with said assembly chamber; a percussion group, it is installed in the assembly chamber, the percussion group includes a stopper, a percussion piece, a safety slide block, a connecting piece, an elastic piece and a locating block, the stopper is pivoted in the assembly chamber and one end is protruded out of the opening, the percussion piece is pivoted in the assembly chamber and close to the cutting groove, the percussion piece is blocked with one end of the stopper after being pivoted in the assembly chamber, the percussion piece is spaced from the stopper when not pivoted, the safety slide block is installed in the assembly chamber and corresponds to each long groove hole, the safety slide block corresponds to two long groove holes and protrudes two slide bars, each slide bar penetrates out of the corresponding long groove hole; the connecting piece is slidably arranged in the assembling chamber and is stacked with the triggering piece, the movement of the safety slide block pushes the connecting piece to move, in addition, one end of the connecting piece, which corresponds to the second end, is provided with a through hole, a shaft rod is arranged in the assembling chamber and is adjacent to one end of the connecting piece, which is provided with the through hole, and two ends of the elastic piece are respectively sleeved on the shaft rod and the through hole; the positioning block is pivoted in the assembling chamber and positioned at one side of the cutting groove, the connecting piece moves towards the position of the positioning block to limit the pivoting of the positioning block, and when the limitation of the connecting piece is removed, the positioning block pivots and protrudes out of the cutting groove; the safety slide block moves towards the first end and pushes the connecting piece to move, the connecting piece moves to pull the elastic force of the elastic piece to accumulate force, and the connecting piece also limits the pivot swing of the positioning block to form a striking mode; when the trigger device is in a trigger mode and the arrow is to be replaced, the safety slide block needs to be switched again to move towards the second end direction, the connecting piece is pulled by the elastic force of the elastic piece to slide towards the second end direction after the limitation of the safety slide block is removed, so that the connecting piece is removed from limiting the pivot swing of the positioning block, and the positioning block is pivoted towards the cutting groove direction to prevent the hollow string from shooting and being injured.

According to the technical features defined in the present invention, the housing further comprises a first housing and a second housing, the first housing and the second housing cover each other, and a sliding groove is formed in a side of the second housing corresponding to the connecting piece, and the connecting piece is slidably assembled in the sliding groove.

According to the technical characteristics defined in the present invention, the link plate further comprises a front driving section, a rear driving section and a middle driving section located between the front driving section and the rear driving section, wherein the front driving section is provided with a groove corresponding to the positioning block and limiting the pivot swing of the positioning block, the through hole is arranged in the rear driving section, the top end of the middle driving section is further provided with at least one pushing piece in a protruding manner, the sliding rod of the safety slide block corresponding to the side of the connecting piece is mutually pushed against the at least one pushing piece, the pushing between the safety slide block and the connecting piece switches the percussion mode and releases the percussion mode, the safety slide block moves towards the second end, and the elastic member pulls the connecting piece to move by elasticity, so that the positioning block can pivot swing to protrude out of the split groove to limit the percussion of the hollow string.

According to the technical characteristics defined by the invention, the invention is further characterized in that one end of the positioning block is pivotally assembled in the assembly chamber, and the other end of the positioning block is provided with a deflector rod in a protruding way from the side edge, and the position of the deflector rod is the same as that of the link plate; in addition, a reset spring is arranged in the assembly chamber and positioned below the positioning block, and two ends of the reset spring respectively abut against the wall surface of the assembly chamber and the bottom surface of the positioning block; after the connecting piece moves towards the positioning block, the deflector rod enters the step groove, and the positioning block presses against the return spring to generate elastic force; the connecting piece moves towards the direction of the safety slide block, the pressing of the deflector rod of the positioning block can be released, and the return spring pushes the positioning block to return by elasticity and partially protrudes to the cutting groove.

According to the technical characteristics defined by the invention, the percussion part further comprises a first hook part, a second hook part and a pushing part, wherein the first hook part partially protrudes out of the groove, the first hook part is used for hooking and abutting the bowstring at a position to be percussion, the second hook part corresponds to the braking part, the braking part is provided with a limiting and controlling part corresponding to the second hook part when the percussion part swings and limits the bowstring, the limiting and controlling part and the second hook part abut against each other to limit the pivotal swing of the percussion part, the pushing part is positioned above the safety slide block, a spring part is additionally arranged between the pushing part and the wall surface of the assembly chamber, two ends of the spring part respectively abut against the pushing part and the inner wall surface of the assembly chamber, and the spring part drives the percussion part to swing and pivot by elasticity.

According to the technical characteristics defined by the invention, the invention is further technically characterized in that one end of the braking piece is provided with a limiting control part, the other end of the braking piece is a pushing part, a connecting control part is arranged between the limiting control part and the pushing part, the assembling chamber is convexly provided with a stop block corresponding to the pushing part, the stop block and the pushing part are arranged at intervals, the stop block penetrates through a group of holes, a limiting spring group is arranged in the group of holes in a penetrating manner, one end of the limiting spring group is elastically assembled in the group of holes when being propped against the other end of the pushing part, the safety slide block can limit the pivot swing of the braking piece when moving towards the second end and shielding the group of holes, the connecting control part is connected with a connecting rod, the connecting rod is further connected with a trigger, and the buckle of the connecting rod is connected with the braking piece to pivot the braking piece.

The safety protection device has the advantages that when a user draws and replaces the cross bow in a state that the cross bow can be fired at any time, the safety is kept to a certain degree after the safety protection device is started, and the occurrence of idle string firing is prevented.

Drawings

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

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the present invention applied to a cruciform bow.

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

Fig. 4 is a partial internal schematic view of fig. 2.

FIG. 5 is a schematic view of the pivotal movement of the stopper and the pivotal movement of the trigger for fixing the bowstring according to the present invention.

FIG. 6 is a schematic view of the present invention with the bow string fixed to the trigger, the connecting piece pushed to move toward the second end and the safety slider pushed to limit the pivotal swing of the stopper.

FIG. 7 is a schematic view showing the movement of the bow and arrow of the present invention mounted on the cross bow and inserted into the cutting slot.

FIG. 8 is a schematic view of the safety slide moving toward the first end and pushing the connecting piece to limit the pivotal movement of the positioning block to achieve the cocked mode.

FIG. 9 is a schematic view of the switching safety slider moving toward the second end and the bow and arrow being replaced, the elastic member elastically pulling the connecting piece to move to release the pivotal movement of the positioning block.

FIG. 10 is a schematic view showing the pivotal movement, displacement and reset of the positioning block after the bow and arrow is pulled out.

FIG. 11 is a schematic view of the movement of the bowstring restrained against the protrusion of the positioning block after the bowstring is inadvertently disengaged from the firing member.

The reference numbers in the figures illustrate:

10 Cross bow 20 firing device

30 bowstring and 40 bow and arrow

1 first end of housing 11

12 second end 13 bottom end

131 opening 14 assembling chamber

141 shaft 142 stop

143 groups of holes 15 cutting groove

16 slotted hole 17 first shell

18 second housing member 181 slide groove

2 trigger group 21 brake

211 limit control part 212 pushing part

213 continuous control part 22 firing piece

221 a first hook 222 and a second hook

223 pushing part 23 safety slide block

231 slide bar 24 connecting piece

241 perforated 242 precursor section

243 rear drive section 244 middle drive section

245 step groove 246 push piece

25 elastic piece 26 positioning block

261 driving lever 3 return spring

4-spring piece 5-limit spring group

6 connecting rod 7 trigger

Detailed Description

Referring to fig. 1 to 11, a trigger two-stage safety device according to the present invention is mainly applied to a cross bow 10, and mainly comprises a trigger device 20 installed on the cross bow 10, which comprises: a shell base 1 having a first end 11, a second end 12 and a bottom end 13 located between the first end 11 and the second end 12, wherein an assembly chamber 14 is formed in the shell base 1, the first end 11 is recessed with a cutting groove 15 and communicated with the assembly chamber 14, the cutting groove 15 is cut from the first end 11 to the second end 12, in addition, two long slot holes 16 are transversely arranged on the periphery of the shell base 1 and are mutually corresponding and communicated with the assembly chamber 14, the bottom end 13 is provided with an opening 131 communicated with the assembly chamber 14; a percussion set 2 installed in the assembly chamber 14 for fixing/percussion the operation of the bowstring 30 and the bow 40, the percussion set 2 includes a stopper 21, a percussion member 22, a safety slide block 23, a connecting piece 24, an elastic member 25 and a positioning block 26, the stopper 21 is pivoted in the assembly chamber 14 and one end thereof is protruded out of the opening 131, the percussion member 22 is pivoted in the assembly chamber 14 and close to the cut-out groove 15, the percussion member 22 is pivoted in the assembly chamber 14 and then abutted against one end of the stopper 21, when the percussion member 22 is abutted against the stopper 21, one end of the percussion member 22 is protruded out of the cut-out groove 15, when the percussion member 22 is not pivoted, the percussion member is spaced from the stopper 21 and is not protruded out of the cut-out groove 15, the safety slide block 23 is installed in the assembly chamber 14 and corresponds to each long groove hole 16, the safety slide block 23 corresponds to two long groove holes 16, each safety slide block 231 penetrates out of the corresponding long groove hole 16 to provide the slide control slide block 23 for the user The direction of the solution is as follows; the connecting piece 24 is slidably disposed in the assembling chamber 14 and stacked on the side surface of the trigger 22, the safety slide 23 moves to push the connecting piece 24 to move, a through hole 241 is disposed at one end of the connecting piece 24 corresponding to the second end 12, a shaft rod 141 is disposed in the assembling chamber 14 adjacent to one end of the connecting piece 24 having the through hole 241, and two ends of the elastic member 25 are respectively sleeved on the shaft rod 141 and the through hole 241; the positioning block 26 is pivoted to the assembly chamber 14 and located at one side of the slot 15 and corresponds to the part exposed when the firing member 22 swings pivotally, the connecting piece 24 moves towards the positioning block 26 to limit the pivotal swing of the positioning block 26, and the positioning block 26 swings pivotally and is exposed to the slot 15 when the limitation of the connecting piece 24 is removed; the safety slide block 23 moves towards the first end 11 and pushes the connecting piece 24 to displace, the displacement of the connecting piece 24 simultaneously pulls the elastic force of the elastic piece 25, and the connecting piece 24 also limits the pivot swing of the positioning block 26 to form a hair-striking mode; when the percussion device 20 is in the percussion mode and the bow 40 is to be replaced, the safety slide 23 needs to be switched again to move towards the second end 12, and the connecting piece 24 is pulled by the elastic force of the elastic piece 25 to slide towards the second end 12 after the limitation of the safety slide 23 is removed, so that the connecting piece 24 is removed to limit the pivotal swing of the positioning block 26, and the positioning block 26 is pivoted towards the direction of the cutting groove 15, so that the ejection of the string firing and the injury can be prevented.

When the user is about to use the crossbow 10 to fire the bow 40, the safety slide 23 is shifted from the second end 12 to the first end 11, and the slide rod 231 is used to push and abut against the link 24, the link 24 also limits the pivotal swing of the positioning block 26 and pulls the elastic member 25, this state is the firing mode (as shown in fig. 8), the user can fire the bow 40 at any time, but if the bow 40 is to be drawn and replaced in the firing mode, the first action to be done is to open the safety to avoid firing by mistake, so the safety slide 23 is first switched to move from the first end 11 to the second end 12 and limit the pivotal swing of the stopper 21, thereby the mistake firing can be prevented first (as shown in fig. 9), then the safety slide 23 is not abutted against the link 24, and the link 24 pulls the elastic member 25 to have elastic force accumulation before, therefore, when the safety slide block 23 does not abut against the connecting piece 24, the connecting piece 24 is pulled by the elastic force of the elastic member 25, and is displaced from the first end 11 to the second end 12, and the displacement of the connecting piece 24 can release the pivot of the limit positioning block 26 (as shown in fig. 10), so that when the user pulls the bow and arrow 40 originally mounted on the cross bow 10 away, the positioning block 26 pivots and partially protrudes out of the cutting groove 15, and the occurrence of the idle firing is prevented by the partial protruding out of the positioning block 26, the bow and string 30 is limited and stopped at the positioning block 26 (as shown in fig. 11), thereby avoiding the injury of the hand of the user by the bow and string 30, or the dangerous result that the bow and string 30 bounces to the tail of the bow and arrow 40 when the bow and arrow 40 is not completely pulled away, so as to ensure the safety when the bow and arrow 40 is pulled, mainly by the elastic member 25 pulling the connecting piece 24 to automatically generate the safety when the bow and arrow 40 is pulled, thereby achieving substantial security.

According to the main technical features described above for the present invention, further describing the technical features of the other components of the present invention, firstly, in the portion of the housing base 1, the housing base 1 is formed by mutually covering a first housing member 17 and a second housing member 18, a sliding groove 181 is recessed on one side of the second housing member 18 corresponding to the connecting piece 24, the sliding groove 181 mainly provides a sliding set of the connecting piece 24, the connecting piece 24 limits the sliding direction thereof by passing the two sliding rods 231 through the corresponding slot holes 16, and also limits the displacement of the safety slide 23 by the arrangement of the sliding groove 181, so as to avoid falling off and affecting the firing of the cross bow 10 in the assembly chamber 14, see fig. 3; the link 24 is technically characterized by comprising a front driving section 242, a rear driving section 243 and a middle driving section 244 located between the front driving section 242 and the rear driving section 243, wherein the front driving section 242 is provided with a step groove 245 at the bottom end corresponding to the positioning block 26, the step groove 245 is mainly used for limiting before the bow and arrow 40 is erected and can abut against the pivot of the positioning block 26, in addition, the through hole 241 is arranged at the rear driving section 243 of the link 24, so that the through hole is adjacent to the shaft rod 141 and is provided with the elastic element 25, and in order to effectively switch the link 24 and the safety slide block 23 in a linkage manner, at least one push piece 246 further protrudes from the top end of the middle driving section 244 of the link 24, while the invention uses two push pieces 246 as the main technology in the figure and uses the two push pieces 246 as the description below, the two push pieces 246 are arranged on the link 24 in a V shape, and the push piece 246 close to the safety slide block 23 can abut against the corresponding slide rod 231 when moving, for example: referring to fig. 3, 4, 6 and 8, when the user wants to fix the bow string 30, the bow string 30 will push against a pushing piece 246 (close to the cut-out slot 15) protruded from the middle driving section 244 of the connecting piece 24, so that the connecting piece 24 will push against the sliding rod 231 by another pushing piece 246 (close to the safety slide 23), thereby allowing the connecting piece 24 and the safety slide 23 to be displaced from the first end 11 toward the second end 12; when the bow 40 is ready to be fired, the safety slide 23 is displaced from the second end 12 to the first end 11 by the operation of the slide bar 231, and simultaneously pushes the push piece 246 of the link piece 24 (close to the safety slide 23) by means of the slide bar 231, so that the link piece 24 can be simultaneously displaced from the second end 12 to the first end 11, in the above two operation processes, the sliding rod 231 and the pushing piece 246 are pushed against each other and linked together, the key point is that the operation of the user is reduced by the linkage arrangement in this way, the movement of the connecting piece 24 can be controlled only by switching the slide rod 231 of the safety slide 23, and the arrangement of the elastic member 25 allows the push piece 246 (close to the safety slide 23) to move from the first end 11 to the second end 12 of the safety slide 23, that is, as shown in fig. 9, the connecting piece 24 is pulled by the elastic force of the elastic member 25, so that the safety of the user who wants to replace the bow 40 can be maintained.

The structure of the positioning block 26 is mainly used to prevent the empty string from firing, so the fastening relationship between the positioning block 26 and the connecting piece 24 is more important, therefore, the positioning block 26 is installed with one end pivotally assembled to the assembly chamber 14 and the other end is provided with a driving lever 261 protruding from the side, the direction of the driving lever 261 is the same as the position of the step groove 245 of the connecting piece 24, a groove is formed between the end of the positioning block 26 provided with the driving lever 261 and the end pivotally assembled to the assembly chamber 14, a return spring 3 is installed in the assembly chamber 14, the two ends of the return spring 3 respectively abut against the inner wall surface of the assembly chamber 14 and the positioning block 26 is provided with a groove, please refer to fig. 3 and 5, when the return spring 3 is limited by the step groove 245 of the connecting piece 24 at the driving lever 261, the positioning block 26 will compress the return spring 3 to form an elastic force, at this time, the bow 40 can be erected on the cross bow 10 for firing, when the lever 261 of the positioning block 26 releases the restriction of the step 245 of the connecting piece 24, the return spring 3 can be elastically biased against the end of the positioning block 26 provided with the lever 261 to swing upward toward the cut 15, thereby utilizing the part of the positioning block 26 protruding out of the cut 15 to restrict and prevent the bowstring 30 from being sprung to the user when being carelessly fired or to carelessly fire the bow 40, which may cause danger. Referring to fig. 3 to 7, the firing member 22 further includes a first hook 221, a second hook 222 and a pushing portion 223, the first hook 221 protrudes from the cut-out 15 when the firing member 22 swings, the first hook 221 functions to hook the bow string 30 at the position to be fired, the second hook 222 corresponds to the stopper 21, the second hook 222 is engaged with a limiting portion 211 of the stopper 21 when the firing member 22 swings to limit the bow string 30, the firing member 22 cannot swing again when the second hook 222 is engaged with the limiting portion 211, the first hook 221 can limit the bow string 30 to be fired and prevent the bow string 30 from being released, the pushing portion 223 swings while the firing member 22 swings, and a spring 4 is disposed in the assembly chamber 14 and located in the pushing portion 223, When the first hook 221 of the trigger 22 is about to limit the bow string 30 between the inner wall surfaces of the assembly chamber 14, the pushing portion 223 compresses the spring 4 to store the elastic force until the limiting portion 211 of the trigger 21 releases the engagement with the second hook 222, and the spring 4 is pushed against the pushing portion 223 by the elastic force to reset the trigger 22, so that the next bow string 30 can be erected.

According to the above description, the stopper 21 will be described next, the stopper 21 has been described above, the stopper 21 has a control limiting portion 211 at one end corresponding to the second hook portion 222, the other end of the stopper 21 has a pushing portion 212, a linkage portion 213 is disposed between the control limiting portion 211 and the pushing portion 212, a stop 142 is protruded at a position of the assembly chamber 14 corresponding to the pushing portion 212, the stop 142 is spaced from the pushing portion 212, the stop 142 penetrates a set of holes 143, a stop spring set 5 is disposed through the set of holes 143, one end of the stop spring set 5 abuts against the other end of the pushing portion 212 and is elastically assembled in the set of holes 143, referring to fig. 3 to 8, when the user intends to erect the bow string 30, the connecting piece 24 is pushed by the pivotal swing of the stopper 21 and after the control limiting portion 211 and the second hook portion 222 are engaged with each other, the connecting piece 24 will push the safety slide 23 to move from the first end 11 to the second end 12, and the safety slide 23 will shield the set hole 143 after moving to limit the elastic convex set hole 143 of the limiting spring set 5, so as to limit the pivotal swing of the stopper 21 and avoid the danger of firing caused by accidental touch. In addition, the linkage control portion 213 of the stopper 21 is connected to one end of a link 6, and the other end of the link 6 is further connected to a trigger 7, as shown in fig. 2 and 4, the user can trigger the linkage control portion 213 of the stopper 21 by pulling the trigger 7 and setting the link 6 to perform the percussion operation.

In summary of the above description of the present invention, the main focus of the operation of replacing the bow and arrow 40 is to protect the safety of the user in the operation of replacing the bow and arrow 40, so that with the elastic member 25, as long as the user needs to replace the bow and arrow 40 in the process of cocking, the safety slide 23 must be shifted from the first end 11 to the second end 12, the pivoting of the detent 21 is first limited, and at the same time, the elastic member 25 will drive the connecting piece 24 to slide from the first end 11 to the second end 12, so that the step 245 of the connecting piece 24 can be removed from limiting the pivoting of the positioning block 26, the user can extract the bow and arrow 40 to be replaced, and after the bow and arrow 40 is extracted, the pivoting can be carried out by the elastic force of the return spring 3, so that the part of the positioning block 26 protrudes from the slot 15, and thus during the extraction of the bow and arrow 40, if the bowstring 30 is accidentally disengaged from the hook of the first hook 221, the part of the positioning block 26 protruding out of the cutting groove 15 can be used for limiting and stopping the bowstring 30, so as to avoid the danger that the bowstring 30 is bounced to the hand of a user or the bowstring 40 is bounced to the bowstring 40 in the process of pulling the bowstring 40 away, so that the shooting risk is avoided.

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.