Repeating device with controllable arrow chain structure

Abstract

A controllable arrow chain structure continuous shooting device, mainly having a drive chamber and a shooting body with chain holes, the chain holes penetrating through the shooting body and communicating with the drive chamber, a chain assembly, an arrow assembly and a string firing group are installed in the drive chamber, the chain assembly clamps the arrow chain and drives the arrow chain to move from one end of the chain hole to the other end, the arrow assembly has a push arm, a push shaft and an arm rod group connecting the push shaft and the push arm, the string of the string firing group drives the chain assembly to move, a drive assembly is partially installed in the drive chamber, the drive assembly includes a rail rod group and a sliding block group, the rail rod group is fixed in the drive chamber, the sliding block group partially interfaces with the rail rod group and slides along the setting direction of the rail rod group to approach and move away from the sliding block group, the sliding block group also has a clamping part clamping the string and a pushing part pushing the push shaft to move.

Description

Technical Field

[0001] A rapid-fire device with a controllable arrow chain structure, specifically referring to a technology applied in the field of shooting, mainly provides a mechanism to drive an arrow chain containing several arrows for firing, and importantly, it provides stability and accuracy during firing, thereby improving the hit rate. Background Technology

[0002] Shooting sports are not unfamiliar today. Whether it's bullet shooting or archery, they all rely on the user's current concentration, on-the-spot reaction, and stability. In the early days, shooting sports, except for bullet shooting which had a burst firing operation, required shooting each arrow individually by drawing and setting it up before firing. This process is something that shooting athletes are certainly familiar with, and their mental state is easily distracted and interrupted, thus affecting accuracy and stability. Therefore, bullet shooting sports have related structures for burst firing, such as magazines or belts like the one described in the M627524 "simulated shrapnel structure of toy gun".

[0003] However, archery shooting sports do not use belts of ammunition as mentioned above. Instead, they use modern arrow magazines, such as the I738463 "crossbow loading device," which allows users to fire in rapid succession. However, modern arrow magazines have several drawbacks compared to belts. First, the number of arrows that can be fired is limited by the height of the magazine. Simply put, the number of arrows that an arrow magazine can hold is limited, and an excessively heavy magazine increases the burden on the user. Second, the assembly and disassembly process is too time-consuming. Some arrow magazines require the magazine to be removed before several arrows can be loaded one by one, and then the magazine containing the arrows can be assembled onto the arrows. After the limited number of arrows are fired, the above operation mode must be repeated to load arrows again. This practice undoubtedly affects the user's concentration and stability during shooting. It is clear that the use of arrow magazines still has certain shortcomings for users. Summary of the Invention

[0004] To address the limitations of existing arrow magazines, which have a limited capacity and require disassembly and reloading after all arrows are used up, this invention provides a continuous firing device with a controllable arrow chain structure. This increases the number of arrows, thereby maintaining stability and accuracy in continuous firing. Furthermore, it is simpler and easier to operate; simply load the arrow chain containing multiple arrows into the device to begin firing.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A rapid-fire device with a controllable arrow chain structure includes: a firing body having a drive chamber inside, and a chain hole extending from one side of the firing body to the other side and communicating with the drive chamber; a chain assembly installed in the drive chamber, the chain assembly including a drive block for engaging the arrow chain and a slider assembly for controlling the movement of the drive block, the drive block corresponding to the chain hole and movably engaging with the arrow chain; and an arrow-carrying assembly installed in the drive chamber, the arrow-carrying assembly including a push shaft, an arm assembly, and a push arm, the push shaft being movably disposed within the drive chamber. The push shaft is located indoors and adjacent to the slider assembly, and the push shaft moves in the same direction as the slider assembly. One end of the arm assembly is mounted on both ends of the push shaft and extends towards the drive block. The other end of the arm assembly is pivotally connected to one end of the push arm, and the other end of the push arm is pivotally connected to the drive chamber. The movement of the push shaft causes the push arm to swing up and down, and the push arm swings up and down towards the arrow chain at one end of the arm assembly. The swinging of the push arm pushes several arrows on the arrow chain to detach and fall onto the top surface of the push arm.

[0007] The system includes a string-firing assembly, installed in the drive chamber, whose string drives the slider assembly to move; and a drive component, partially installed in the drive chamber and partially located outside the firing body, comprising a rail assembly and a slide assembly. The rail assembly is fixed in the drive chamber, and the slide assembly is partially connected to the rail assembly. The slide assembly moves along the rail assembly and approaches and moves away from the slider assembly. The portion of the slide assembly located in the drive chamber further includes a clamping part for clamping the string and a pushing part for pushing the push shaft to move. By repeatedly operating the drive component, the slide assembly moves toward the chain assembly and the push shaft, and the string drives the slider assembly, while the pushing part pushes the push shaft. This allows the push arm to push out arrows on the chain while moving the arrow chain, so that they land on the top surface of the push arm and await firing from the string.

[0008] The beneficial effects of this invention are that the user only needs to place one end of the arrow chain containing several arrows into the drive chamber and pull it from one side of the chain hole. The drive assembly controls the string in the string firing assembly to move towards the slider assembly. When the string touches the slider assembly, the pushing part simultaneously touches the push shaft. The continuous movement of the drive assembly controls the simultaneous movement of the slider assembly and the push shaft. The movement of the slider assembly indirectly controls the drive block to push the arrow chain. During the movement of the arrow chain, the movement of the push shaft indirectly controls one end of the push arm to push the arrow off the arrow chain, allowing the arrow to land on the top surface of the push arm. At this point, the string is already behind the arrow, ready to be fired. Based on the above continuous actions, the user only needs to repeatedly control the movement of the drive assembly to achieve a large number of firing operations, while maintaining shooting stability and improving shooting accuracy. This invention improves upon the limitations of existing arrow magazines, which can only hold a limited number of arrows depending on the height of the magazine. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0011] Figure 2 This is a schematic diagram illustrating the action of the gun casing pivoting and opening relative to the main gun casing according to the present invention.

[0012] Figure 2A for Figure 2 A disassembled diagram of the arrow chain and the firing mechanism.

[0013] Figure 3 This is a three-dimensional schematic diagram of the gun casing of the present invention.

[0014] Figure 4 for Figure 3 A partial schematic diagram.

[0015] Figure 5 This is a three-dimensional exploded view of the chain assembly and the firing body of the present invention.

[0016] Figure 6 This is a schematic diagram of the combination of the internal frame, arrow assembly, chain assembly, and string firing assembly of the present invention.

[0017] Figure 7 for Figure 6 An exploded three-dimensional diagram of the arrow-shaped assembly and its internal frame.

[0018] Figure 8 This is a three-dimensional exploded view of the slider assembly and drive block of the present invention.

[0019] Figure 9 for Figure 8 Another perspective on the three-dimensional breakdown diagram.

[0020] Figure 10 This is a three-dimensional schematic diagram of the movement of the external control of the present invention.

[0021] Figure 11 for Figure 1 The diagram shows a cross-sectional view of line segment XI-XI.

[0022] Figure 12 for Figure 1 The diagram shows a cross-sectional view of line segment XII-XII.

[0023] Figure 13 for Figure 10 The diagram shows a cross-sectional view of line segment XIII-XIII.

[0024] Figure 14 for Figure 13A schematic diagram illustrating the action of the string pushing the slider assembly, the pusher pushing the push shaft to move, and the push arm swinging upward to push the arrow away from the arrow chain.

[0025] Figures 15 to 17 for Figure 12 A schematic diagram of the continuous motion of the drive block moving the arrow chain.

[0026] Figure 18 , Figure 19 This is a schematic diagram of the movement of the slider assembly within the base according to the present invention.

[0027] Explanation of the labels in the diagram:

[0028] Shooting body 100,

[0029] Main gun casing 10, buttstock 101, fore-end 102, firing port 103, gun cover 11.

[0030] Sliding hole 111, arch seat 112, limiting block 113, long groove 1131, protrusion 114, receiving groove 115, drive chamber 12, chain hole 13, torsion spring 14, internal bracket 15, mounting channel 151.

[0031] Frame 152, rail hole 1521

[0032] Chain component 200

[0033] Drive block 20, pointed top 201, long sliding hole 202, slider group 21, first slider 211, rail groove 2110, inclined groove 2111, limiting protrusion 2112, second slider 212, guide inclined block 2120, slot 2121, plug-in block 2122, first arc groove 2123, base 2, shell cover 221, receiving groove 222, frame chain groove 223, drive hole 224, protruding plate 225, elastic element 23.

[0034] Arrow Chain 300

[0035] Arrow 301, Concave Step 302, Chain Block 303, Slot 304

[0036] Arrow component 400

[0037] Push shaft 40, boom assembly 41, long boom component 411, short connecting rod 412, push arm 42.

[0038] String firing group 500

[0039] String 51

[0040] Driver component 600

[0041] Rail assembly 61, main shaft 611, pressure rod 612, slide assembly 62, clamping part 621, pushing part 622, front seat 623, rear seat 624, front buckle 625, rear buckle 626, external control 63, connecting rod 64, spring assembly 65.

[0042] Vertical line A, horizontal line B. Detailed Implementation

[0043] To clearly illustrate the aforementioned objectives and effects achieved by the present invention, its features and effects are described in detail below with reference to the accompanying drawings. Please refer to... Figures 1 to 19 As shown, the present invention discloses a rapid-fire device with a controllable arrow chain structure, comprising: a firing body 100 including a main gun housing 10 and a gun cover 11, the gun cover 11 covering the main gun housing 10, and forming a drive chamber 12 inside the gun cover 11 after the main gun housing 10 is closed; the main gun housing 10 is divided into a rear support portion 101 and a front drive portion 102, the rear support portion 101 being connected to one end of the front drive portion 102, and the gun cover 11 being pivotally mounted to the other end of the front drive portion 102 and having a firing port 103 communicating with the drive chamber 12; a sliding hole 111 communicating with the drive chamber 12 is further provided on one side of the gun cover 11, and a chain hole is also provided. 13 extends from one side of the firing body 100 to the other side and communicates with the drive chamber 12; a chain assembly 200 is installed in the drive chamber 12 and located in the front drive part 102 near the rear support part 101. The chain assembly 200 includes a drive block 20 that engages the arrow chain 300 and a slider group 21 that controls the movement of the drive block 20. The drive block 20 corresponds to the chain hole 13 and is engaged with the arrow chain 300. The movement of the slider group 21 controls the drive block 20 to move the arrow chain 300 from one end of the chain hole 13 to the other end. The diameters of the two ends of the chain hole 13 are different.

[0044] The arrow-carrying assembly 400 is installed within the drive chamber 12 and located within the front drive portion 102, away from the rear support portion 101. The arrow-carrying assembly 400 includes a push shaft 40, an arm assembly 41, and a push arm 42. The push shaft 40 is movably disposed within the drive chamber 12 and adjacent to the slider assembly 21, and the push shaft 40 and the slider assembly 21 move in the same direction. One end of the arm assembly 41 is mounted to both ends of the push shaft 40 and extends towards the drive block 20, while the other end of the arm assembly 41 is pivotally connected to one end of the push arm 42, and the other end of the push arm 42 is pivotally connected to the drive chamber 12. The arm assembly 41 further includes two long arm members 411 and two short connecting rods 412. One end of each long arm 411 is pivotally connected to both ends of the push shaft 40. The other end of each long arm 411 is pivotally connected to one end of each short connecting rod 412. The other end of each short connecting rod 412 is pivotally connected to both sides of the push arm 42, which is specifically mounted on one end of several arrows 301 of the arrow chain 300. The movement of the push shaft 40 is achieved through the cooperation of the two long arms 411 and the two short connecting rods 412, which indirectly drives the push arm 42 to swing up and down. The push arm 42 swings up and down toward the arrow chain 300 at the end pivotally connected to the two short connecting rods 412. The swinging of the push arm 42 pushes the arrows 301 mounted on the arrow chain 300 to detach and fall onto the top surface of the push arm 42 during the movement.

[0045] A string-firing assembly 500 is partially installed within the front portion 102 of the drive chamber 12. This assembly is primarily used to fire arrows 301. The string 51 of the string-firing assembly 500 drives the slider assembly 21. A drive component 600 is partially installed within the drive chamber 12 of the gun cover 11, while a portion of the drive component 600 is located outside the gun cover 11. The drive component 600 includes a rail assembly 61, a slide assembly 62, and an external control 63. The rail assembly 61 is fixed within the drive chamber 12, and the slide assembly 62 is partially connected to the rail assembly 61. The slide assembly 62 moves along the rail assembly 61, approaching and moving away from the slider assembly 21. The portion of the slide assembly 62 located within the drive chamber 12 is further... The device includes a clamping part 621 that clamps the string 51 and a pushing part 622 that pushes the push shaft 40 to move. In addition, an external control 63 is located outside the gun cover 11 and is connected to the slide block 62 through the sliding hole 111 via a connecting rod 64. The external control 63 controls the slide block 62 to move closer to the slider assembly 21 and the push shaft 40. By repeatedly operating the drive assembly 600, the slide block 62 moves toward the chain assembly 200 and the push shaft 40, and the string 51 pushes the slider assembly 21, while the pushing part 622 pushes the push shaft 40. In this way, while moving the arrow chain 300, the push arm 42 will also push out the arrows 301 on the arrow chain 300, which will then fall on the top surface of the push arm 42 to wait for the string 51 to fire.

[0046] According to the above description, the operation of the present invention mainly involves first pivoting the gun cover 11 relative to the main gun shell 10, then placing one end of the arrow chain 300 containing the arrows 301 into the drive chamber 12 and corresponding to the position of the drive block 20, so that the drive block 20 can engage with the arrow chain 300. After completion, the gun cover 11 is closed relative to the main gun shell 10. Then, the external control 63 is pulled from one end of the firing port 103 toward the rear support 101. The external control 63 controls the slide block 62 to move along the setting direction of the rail group 61 toward the slider group 21. During the movement, the clamping part 621 of the slide block 62 pulls the string 51. With the continuous movement, the string 51 touches the slider group 21, and at the same time, the pushing part 622 also touches the push shaft 40. Then, the external control 63 continues to move, causing the string 51 to push the slider group 21 toward the rear support 101. The pusher 622 also pushes the push shaft 40 to move towards the rear support 101. During the movement of the slider group 21, the drive block 20 is controlled to push the arrow chain 300 to move. The movement of the push shaft 40 indirectly drives one end of the push arm 42 to swing upward. During the upward swing of the push arm 42, the drive block 20 has controlled the movement of the arrow chain 300 so that the position of the arrow 301 corresponds to the push arm 42, so that the push arm 42 can push the arrow 301 to leave the arrow chain 300 and land on the top surface of the push arm 42. After the arrow 301 lands on the top surface of the push arm 42, the string 51 is also located behind the arrow 301. When the arrow 301 is completely separated from the arrow chain 300, it can be fired. The string 51 bounces towards the firing hole 103 and bounces the arrow 301 to move quickly towards the firing hole 103 and fire out of the firing body 100.

[0047] According to the above description of the operation of arrow 301 from installation to firing, compared with the use of arrow magazine structure described in the prior art, the present invention does not have the limitation of arrow magazines being able to hold only a limited number of arrows due to height restrictions. In the existing method, the arrow magazine must be disassembled and the gun body must be refilled after the arrows are fired. However, the present invention, with the setting of arrow chain 300, does not require redundant and repetitive installation procedures. As long as the arrow chain 300 is installed into the drive chamber 12 as scheduled, the arrow 301 can be fired (the number of arrows 301 that can be used is set according to the length of the arrow chain 300). This allows the user to maintain the best shooting state for the shooting operation of arrow 301, thereby maintaining shooting stability and shooting accuracy, without having to be distracted by refilling the arrow magazine.

[0048] Based on the above description, other technical features of the present invention will be detailed below. First, please see... Figure 3 , Figure 4 , Figure 11 , Figure 13 , Figure 14As shown, in the setting of the external control 63, one end of the connecting rod 64 passes through the sliding hole 111 and connects to the slide block assembly 62, while the other end of the connecting rod 64 is connected to the external control 63. The external control 63 controls the slide block assembly 62 to move closer to and further away from the slider assembly 21 and the push shaft 40. Furthermore, the movement of the slide block assembly 62 is mainly along the installation of the rail assembly 61. Therefore, the rail assembly 61 further includes at least one main shaft 611 and a pressure rod 612 (the illustration mainly shows two main shafts 611), and the two main shafts 611 are at the same horizontal height. The two main shafts 611 are spaced apart within the drive chamber 12. The pressure rod 612 is positioned between the two main shafts 611 at a different horizontal height. The pressure rod 612 corresponds to the push arm 42. When the arrow 301 is located on the top surface of the push arm 42, the pressure rod 612 presses against the arrow 301, thus limiting the swaying and falling of the arrow 301 together with the push arm 42. The slide assembly 62 further includes a front seat 623 and a rear seat 624, which are slidably fitted onto the two main shafts 611. 11. Moving along the aforementioned rod direction, the rear seat 624 approaches the firing hole 103, while the front seat 623 moves away from the firing hole 103. One end of the front seat 623 is the pushing part 622, and the other end is fastened to the rear fastening part 626 of the rear seat 624 by the front fastening part 625. The clamping part 621 is provided on the rear seat 624. A spring assembly 65 is provided between the front seat 623 and the rear seat 624. The spring assembly 65 controls the approach and separation of the front seat 623 and the rear seat 624 by the compression and release of elastic force. During the movement of block assembly 21, the pushing part 622 of the front seat member 623 touches the push shaft 40 and pushes it to the end. In order for the string 51 to push the slider assembly 21 to move again towards the rear support part 101, so that the drive block 20 can control the position of the arrow chain 300 with the arrow 301 to correspond to the push arm 42 as expected, after the push shaft 40 is pushed to the end, the front seat member 623 can move closer to the rear seat member 624 again by means of the spring assembly 65, so that the string 51 can push the slider assembly 21 again to ensure that the drive block 20 drives the arrow chain 300 to move.

[0049] Continuing from the above, in addition to controlling the movement of the arrow chain 300 with the drive block 20, the present invention further provides an arch 112 and two limiting blocks 113 inside the gun cover 11. The arch 112 corresponds to the arrow chain hole 13 and the arrow chain 300 when the gun cover 11 is closed relative to the main gun shell 10. On the side of the arch 112 facing the slider assembly 21, two protrusions 114 and two receiving grooves 115 connecting the two protrusions 114 are further provided. 115 are located at both ends of the arch 112, and a torsion spring 14 is installed in each groove 115. Each limiting block 113 has a long groove 1131, and each protrusion 114 is inserted into each long groove 1131. The two ends of each torsion spring 14 abut against the corresponding protrusion 114 and the groove wall of the long groove 1131. Each limiting block 113 moves due to the abutment of the torsion spring 14, and in conjunction with the setting of the driving block 20, drives the arrow chain 300 to move. Figure 3 , Figure 4 , Figure 11 , Figures 13 to 17 To illustrate, initially, the drive block 20 will engage with the second concave step 302 of the several concave steps 302 set on the arrow chain 300 (the arrow chain 300 is a chain-like structure composed of several interlocking chain steps 303). At this time, the left limit block 113 of the two limit blocks 113 will engage with the concave step 302 of the third chain step 303. As the drive block 20 moves, it will push the arrow chain 300 to move. At this time, the two limit blocks 113 will engage with the concave steps 302 of the first chain step 303 and the fourth chain step 303. In this way, the arrow chain 300 will not move backward during the process of the drive block 20 returning to its original position, thus ensuring the driving direction of the arrow chain 300 and enabling continuous firing.

[0050] Additionally, the present invention further includes an internal mounting bracket 15 installed within the drive chamber 12. This internal mounting bracket 15 serves to accommodate the chain assembly 200 and the arrow assembly 400. The internal mounting bracket 15 is made of metal, while the main gun casing 10 and the gun cover 11 are primarily made of plastic. The internal mounting bracket 15 has a mounting groove 151 connecting to the drive chamber 12. Furthermore, the internal mounting bracket 15 has two protruding bracket plates 152 corresponding to the push shaft 40. These two bracket plates 152 respectively form rail holes 1521. Both ends of the push shaft 40 are slidably engaged in each rail hole 1521, and the pushing part 622 pushes the push shaft 40 to move along the diameter of each rail hole 1521. The slider assembly 21 of the chain assembly 200 is installed in the mounting channel 151 and located below the push shaft 40. The end of the aforementioned push arm 42 opposite to the end that pushes the arrow 301 is pivotally attached to the inner wall of the mounting channel 151. The displacement of the push shaft 40 causes the two long arms 411 to move together, and the connection of the two short connecting rods 412 indirectly causes one end of the push arm 42 to push the arrow 301 away from the arrow chain 300. The arrow 301 falls onto the top surface of the push arm 42. The inner frame 15 provides a stable operating mechanism for the chain assembly 200, the arrow assembly 400, and the string firing assembly 500 within the drive chamber 12. Please see... Figure 2 , Figures 5 to 7 , Figure 13 , Figure 14 As shown.

[0051] Finally, the movement of the slider assembly 21 is described. The slider assembly 21 further includes a first slider 211 and a second slider 212. The first slider 211 and the second slider 212 are slidably disposed in the drive chamber 12. The space within the drive chamber 12 is defined by a longitudinal line A and a transverse line B. The first slider 211 moves along the longitudinal line A, and the second slider 212 moves along the transverse line B. The bottom surface of the first slider 211 has at least one inclined groove 2111 recessed, while the top surface of the second slider 212 has a guide block 2120 protruding and inserted into the at least one inclined groove 2111. In addition, the drive block 20 is installed at the end of the second slider 212 near the chain hole 13. The drive block 20 engages the arrow chain 300 after it passes through the chain hole 13. A base 22 is installed in the drive chamber 12 and near the rear support 101. The base 22 is further divided into... There are two shell covers 221, which are joined together to form a receiving groove 222. The inner walls of the receiving groove 222 on both sides are respectively provided with rail protrusions 226. The rail protrusions 226 are arranged along the longitudinal line A. Corresponding to each rail protrusion 226, the two sides of the first slider 211 are recessed to form mutually sliding rail grooves 2110. Each rail groove 2110 is inserted into the corresponding rail protrusion 226, and the first slider 211 moves along the direction of the rail protrusions 226 via the rail grooves 2110. The base 22, near the chain hole 13, has a chain groove 223 cut from its side, and a drive hole 224 penetrating through the bottom surface of the chain groove 223. The drive block 20 is located in the drive hole 224 and moves along the transverse line B. The end of the drive block 20 that engages with the arrow chain 300 protrudes from the drive hole 224. (See...) Figure 5 , Figure 8 , Figure 9 , Figures 15 to 19 As shown.

[0052] As described above, the arrow chain 300 passes through one end of the chain hole 13 and is mounted on the chain groove 223. Since the drive hole 224 penetrates the bottom surface of the chain groove 223, one end of the drive block 20 that engages with the arrow chain 300 protrudes from the drive hole 224. Therefore, after the arrow chain 300 passes through the chain hole 13, it is mounted on the chain groove 223 and is engaged with the drive block 20. Then, the drive assembly 600 drives the slider group 21 to move (the first slider 211 moves along the longitudinal line A, and the second slider 212 moves along the transverse line B). As the slider group 21 moves... Then, the tip 201 of the drive block 20 will move left and right along the horizontal line B. At this time, the drive block 20 will disengage from its original position where it was engaged with the arrow chain 300. Then, the drive block 20 will return to its original position and engage with the arrow chain 300 again. By repeatedly moving the drive block 20 left and right, the arrow chain 300 can be easily driven to enter from one end of the chain hole 13 and exit sequentially from the other end of the chain hole 13. In this way, the arrow chain 300 can be reliably moved within the chain hole 13, thereby achieving the purpose of rapidly firing a large number of arrows 301. Please see Figures 15 to 19 As shown.

[0053] In addition to the first slider 211 needing to move smoothly, the second slider 212 also needs to move smoothly, therefore please see Figures 15 to 19 As shown, at least one protruding plate 225 extends further towards the opening on the bottom surface of the receiving groove 222. The at least one protruding plate 225 is arranged in the direction of the horizontal line B. The bottom surface of the second slider 212 is provided with a slot 2121, and the at least one protruding plate 225 is inserted into the slot 2121, thereby allowing the second slider 212 to move along the direction of the at least one protruding plate 225, thus preventing the second slider 212 from sliding or falling out arbitrarily in the receiving groove 222. At least one inclined groove 2111 is provided on the bottom surface of the first slider 211 to... Figure 9 The swing direction is described as being set in an upward and right-to-left tilting direction, while the guide block 2120 of the second slider 212 is... Figure 8 The swing direction is set from bottom to top and from left to right, so that the first slider 211 and the second slider 212 are misaligned in their movement, so that the first slider 211 can move along the vertical line A and the second slider 212 can move along the horizontal line B.

[0054] To prevent the drive block 20 from failing to engage properly with the arrow chain 300, several slots 304 are provided on the arrow chain 300, each located on a separate chain block 303. (See attached image.) Figures 10 to 19 As shown, the first slider 211 further protrudes a limiting protrusion 2112 on one end face of the arrow chain 300. When the user inserts the arrow chain 300 into the chain hole 13, in addition to the driving block 20 engaging the arrow chain 300, the limiting protrusion 2112 will also be inserted into any one of the several slots 304 provided on the arrow chain 300. At this time, the slot 304 will be in the same area as the position where the arrow chain 300 engages with the driving block 20. This provides an additional limiting mechanism between the arrow chain 300 and the driving block 20, ensuring that the arrow chain 300 moves smoothly without any chain skipping.

[0055] Finally, the configuration of the drive block 20 is crucial during the movement of the arrow chain 300. Since the arrow chain 300 is a long strip formed by multiple chain blocks 303 pivotally connected together, the engagement between the drive block 20 and each chain block 303 after disengagement is particularly important. Therefore, a connector 2122 is further protruded on the side of the second slider 212 corresponding to the drive block 20, and a first arc groove 2123 is recessed at the top of the connector 2122. Furthermore, the drive block 20 is provided with a long sliding hole 202 corresponding to the connector 2122. The connector 2122 is inserted into the long sliding hole 202, and an elastic element 23 is provided between the wall of the long sliding hole 202 and the first arc groove 2123. The two ends of the elastic element 23 spring against the hole of the long sliding hole 202. The drive block 20 moves one of the chain blocks 303, and then returns to its original position. During this return process, the drive block 20 abuts against the outer surface of the next chain block 303. At this time, the drive block 20 is pushed down by the chain block 303, and the elastic element 23 is compressed until the tip 201 of the drive block 20 aligns with the concave step 302 of the chain block 303. Then, the drive block 20 is released by the elastic force of the elastic element 23 and moves upward, so that the tip 201 of the drive block 20 engages with the concave step 302. In this way, the movement of the arrow chain 300 is completed. Combined with the aforementioned limiting blocks 113, the positioning of the arrow chain 300 after movement is further stabilized. Please see Figures 15 to 19 As shown.

[0056] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A rapid-fire device with a controllable arrow chain structure, characterized in that, include: The firing body has a drive chamber inside, and a chain hole that runs from one side of the firing body to the other side and communicates with the drive chamber. A chain assembly is installed in the drive chamber. The chain assembly includes a drive block for engaging the arrow chain and a slider assembly for controlling the movement of the drive block. The drive block corresponds to the chain hole and is movably engaged with the arrow chain. The slider assembly further includes a first slider and a second slider, which are slidably disposed in the drive chamber. The space inside the drive chamber defines a longitudinal line and a transverse line. The first slider moves along the longitudinal line, and the second slider moves along the transverse line. The bottom surface of the first slider is recessed with at least one inclined groove, while the top surface of the second slider is protruded with a guide block that is inserted into the at least one inclined groove. In addition, the drive block is installed at the end of the second slider near the chain hole, and the drive block engages the arrow chain after the arrow chain passes through the chain hole. An arrow-bearing assembly is installed in the drive chamber and includes a push shaft, an arm assembly, and a push arm. The push shaft is movably disposed in the drive chamber and adjacent to the slider assembly, and the push shaft and the slider assembly move in the same direction. One end of the arm assembly is installed at both ends of the push shaft and extends toward the drive block, while the other end of the arm assembly is pivotally connected to one end of the push arm. The other end of the push arm is pivotally connected to the drive chamber. The movement of the push shaft causes the arm assembly to drive the push arm to swing up and down. The push arm swings up and down toward the arrow chain at one end connected to the arm assembly. The swinging of the push arm pushes several arrows on the arrow chain to detach and fall onto the top surface of the push arm. A string-fired assembly, installed in the drive chamber, has a string that drives the slider assembly to move. The drive assembly is partially installed in the drive chamber and partially located outside the firing body. The drive assembly includes a rail assembly and a slide assembly. The rail assembly is fixed in the drive chamber, and the slide assembly is partially connected to the rail assembly. The slide assembly moves along the rail assembly and moves closer to and away from the slider assembly. The portion of the slide assembly located in the drive chamber further includes a clamping portion for clamping the string and a pushing portion for pushing the push shaft to move. By repeatedly manipulating the drive assembly, the slide block moves toward the chain assembly and the push shaft, and the string pushes the slider assembly and the push part pushes the push shaft. In this way, while the arrow chain moves, the push arm will also push the arrows on the arrow chain out and land on the top surface of the push arm to wait for the string to fire.

2. The rapid-fire device with a controllable arrow chain structure according to claim 1, characterized in that, The firing body further includes a main gun case and a gun cover. The main gun case is further divided into a rear stock and a front drive section. The rear stock is connected to one end of the front drive section. The gun cover is pivotally assembled to the other end of the front drive section and is provided with a firing port. When the gun cover is closed relative to the main gun case, it forms the drive chamber, and the drive chamber is connected to the firing port. A sliding hole is further provided on one side of the gun cover. The drive assembly is partially located in the sliding hole and slides along the hole.

3. The rapid-fire device with a controllable arrow chain structure according to claim 2, characterized in that, The drive assembly further includes an external control unit located outside the main gun housing and connected to the slide block assembly via a connecting rod passing through a sliding hole. The external control unit controls the slide block assembly to move toward the slider assembly and away from the push shaft.

4. The rapid-fire device with a controllable arrow chain structure according to claim 2, characterized in that, The rail assembly further includes at least one main shaft and a pressure rod, the pressure rod corresponding to the push arm, and the pressure rod presses against and restricts the swaying of the arrow when the arrow is located on the top surface of the push arm; The slide assembly further includes a front seat and a rear seat. The front seat and the rear seat are slidably fitted onto at least one main shaft and move along the shaft's direction. The rear seat is close to the firing hole, while the front seat is away from the firing hole. One end of the front seat is the pushing part, and the other end is fastened to the rear fastening part of the rear seat by a front fastening part. The clamping part is provided on the rear seat. A spring assembly is provided between the front seat and the rear seat. The spring assembly controls the proximity and separation of the front seat and the rear seat by the compression and release of elastic force.

5. The rapid-fire device with a controllable arrow chain structure according to claim 2, characterized in that, The gun cover is further provided with an arch and two limiting blocks. When the gun cover is closed relative to the main gun case, the arch corresponds to the chain hole and the arrow chain. On the side of the arch facing the slider assembly, two protrusions are further provided, as well as two receiving grooves connecting the two protrusions. The two protrusions and the two receiving grooves are respectively located at both ends of the arch. Torque springs are installed in each receiving groove. Each limiting block is provided with a long groove. Each protrusion is inserted into each long groove. The two ends of each torsion spring abut against the corresponding protrusion and the groove wall of the long groove. Each limiting block moves by the abutment of each torsion spring and, in conjunction with the setting of the drive block, drives the arrow chain to move.

6. The rapid-fire device with a controllable arrow chain structure according to claim 1, characterized in that, The drive chamber is further equipped with an inner frame, on which the chain assembly and arrow assembly are partially installed. The inner frame has an installation channel that connects to the drive chamber. The inner frame has two brackets that protrude from the push shaft. The two brackets form rail holes. The two ends of the push shaft slide into each rail hole. The pushing part pushes the push shaft to move along the diameter of each rail hole. The slider of the chain assembly is assembled in the installation channel and located below the push shaft.

7. The rapid-fire device with a controllable arrow chain structure according to claim 6, characterized in that, The arm assembly further includes two long arm members and two short connecting rods. One end of each of the two long arm members is pivotally connected to both ends of the push shaft, and the other end of each of the two long arm members is pivotally connected to one end of each of the two short connecting rods. The other ends of each of the two short connecting rods are pivotally connected to both sides of the end of the push arm that pushes the arrow. The end of the push arm that pushes the arrow is pivotally connected to the inner wall of the mounting channel. The displacement of the push shaft causes the two long arm members to move together, and the connection of the two short connecting rods indirectly causes one end of the push arm to push the arrow away from the arrow chain. The arrow falls on the top surface of the push arm.

8. The rapid-fire device with a controllable arrow chain structure according to claim 1, characterized in that, The chain assembly further includes a base installed in the drive chamber, and the base is divided into two shells. The two shells are joined together to form a receiving groove. The inner walls of the receiving groove on both sides are respectively provided with rail protrusions. The rail protrusions are arranged along the longitudinal direction. The first slider has corresponding rail protrusions on both sides to form rail grooves that slide with each other. Each rail groove is inserted into the corresponding rail protrusion, and the first slider moves along the setting direction of each rail protrusion through each rail groove.

9. The rapid-fire device with a controllable arrow chain structure according to claim 8, characterized in that, The base is further provided with a chain groove on the side near the chain hole, and a drive hole through the bottom surface of the chain groove. The drive block is located in the drive hole and moves along the horizontal direction. The end of the drive block that engages with the arrow chain protrudes out of the drive hole.

10. The rapid-fire device with a controllable arrow chain structure according to claim 8, characterized in that, The bottom surface of the receiving groove extends at least one protruding plate towards the groove opening. The at least one protruding plate is arranged in the direction of the horizontal line. The bottom surface of the second slider is provided with a slot. The at least one protruding plate is inserted into the slot. The second slider is displaced along the direction of the at least one protruding plate. In addition, the end face of the first slider facing the arrow chain further protrudes a limiting protrusion. After the driving block engages the arrow chain, the limiting protrusion is simultaneously inserted into any one of the several slots of the arrow chain.

11. The rapid-fire device with a controllable arrow chain structure according to claim 1, characterized in that, The drive block further includes a pointed top, and the arrow chain further has several concave steps. The arrow chain is inserted into the chain hole and abuts against the pointed top with any one of the concave steps. When the second slider moves in the horizontal direction, the pointed top pushes the arrow chain to a different position. When the second slider drives the drive block to return to its original position, the pointed top then engages with the next concave step.

12. The rapid-fire device with a controllable arrow chain structure according to claim 1, characterized in that, The second slider has a protruding plug block on one side of the driving block, and a first arc groove is recessed at the top of the plug block. In addition, the driving block is provided with a long sliding hole corresponding to the plug block. The plug block is inserted into the long sliding hole, and an elastic member is provided between the wall of the long sliding hole and the first arc groove. The two ends of the elastic member abut against the wall of the long sliding hole and the wall of the first arc groove.

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