Compound bow shooting rest structure

Abstract

The utility model relates to a compound bow launching seat structure relates to compound bow technical field, including the fixed seat of L shape, the vertical section front end of fixed seat is equipped with non -magnetic launching seat, the top of horizontal section is equipped with the magnetic force seat for positioning steel ball, the magnetic force seat with non -magnetic launching seat between through guide rail connection. The new type can guarantee the positioning before steel ball launch, avoids the steel ball to fall off, simultaneously, in the process of launching steel ball, steel ball slips to the first conical groove due to inertia, is shot forward by non -magnetic launching seat, avoids the problem that the launching precision reduces because of getting rid of the magnetic force seat, guarantees the convenient use while effectively improving the launching precision of steel ball.

Description

Technical Field

[0001] This invention relates to the field of composite bow technology, specifically to a composite bow launcher structure. Background Technology

[0002] Modern compound bows are divided into dual-purpose compound bows and archery compound bows. Dual-purpose compound bows can shoot both arrows and steel balls, but users generally find that the accuracy of shooting steel balls with dual-purpose compound bows is significantly lower than that of shooting arrows, and the steel balls are scattered over a large range, which cannot meet the needs of users.

[0003] like Figure 8 As shown, compound bows typically have a magnetic base at the bowstring to hold the steel ball. This magnetic base is a ring-shaped magnetic structure, with the bottom of the steel ball resting inside. This design facilitates positioning the steel ball before launch and prevents it from falling out. However, the designers did not consider the complex force relationships during launch, which is a major reason why the accuracy of steel ball launches is generally lower than that of archery.

[0004] Specifically, during the launch of the steel ball, the magnetic base is pulled forward and accelerated by the bowstring, eventually causing the steel ball to overcome the attractive force of the magnetic base due to inertia and launch forward. The instant the steel ball breaks free from the magnetic base is like forcibly pulling apart two tightly attracted magnets; this instantaneous release of forces significantly affects the stability of the steel ball, thus impacting its final shooting accuracy.

[0005] In conclusion, while the current magnetic base facilitates the positioning of steel balls and prevents them from falling off during use, it also brings the side effect of reduced launch accuracy. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] This invention discloses a composite bow launcher structure, which aims to address the problem in the prior art that "although the current magnetic base can facilitate the positioning of steel balls and prevent them from falling off during use, it brings the side effect of reduced launch accuracy."

[0007] To achieve the above objectives, the technical solution of this invention is as follows:

[0008] A composite bow launcher structure includes an L-shaped fixed base. The front end of the vertical section of the fixed base is provided with a non-magnetic launcher, and the top of the horizontal section is provided with a magnetic base for positioning steel balls. The magnetic base and the non-magnetic launcher are connected by a guide rail.

[0009] Preferably, the front end of the vertical section is provided with a first conical groove, the size of which matches the steel ball and forms a non-magnetic launching seat.

[0010] Preferably, the axis of the first conical groove extends forward perpendicular to the bowstring direction, and the size and structure of the first conical groove satisfy the condition that the axis of the circle that is tangent to the outer wall of the steel ball and the point of tangency is connected to the first conical groove is coaxial.

[0011] Preferably, the upper end of the horizontal section is provided with a second conical groove, and a magnetic seat is embedded in the inner wall of the second conical groove.

[0012] Preferably, one end of the second conical groove facing the vertical section is connected to one end of the guide rail, and the other end of the guide rail is connected to the groove wall of the first conical groove. The guide rail is provided with a V-shaped guide groove, which is used in conjunction with the steel ball.

[0013] Preferably, the height at the connection between the bottom of the guide groove and the wall of the first conical groove is higher than the height of the circle formed by the steel ball and the first conical groove being tangent. The height refers to the height along the axis of the first conical groove.

[0014] Preferably, the vertical distance between the first conical groove and the second conical groove satisfies the condition that the attraction of the magnetic seat on the steel ball is overcome during the steel ball launching process.

[0015] Preferably, the upper and lower ends of the vertical section are respectively provided with a first connecting block and a second connecting block, and a pull rope is connected between the first connecting block and the second connecting block and located on the rear side of the vertical section.

[0016] Preferably, the upper part of the left and right side walls of the vertical section is provided with a third connecting block, and the lower part of the left and right side walls is provided with a fourth connecting block. The third connecting block and the fourth connecting block on the same side are respectively tied and fixed to the bowstring of the compound bow.

[0017] Preferably, the bottom of the first conical groove and the second conical groove are respectively provided with a first through hole penetrating the rear end of the vertical section and a second through hole penetrating the bottom of the horizontal section.

[0018] The beneficial effects of this novel composite bow launcher structure:

[0019] This new design ensures the positioning of the steel ball before launch, preventing it from falling off. During launch, the steel ball slides into the first conical groove due to inertia and is then ejected forward by the non-magnetic launcher, avoiding the reduction in launch accuracy caused by detaching from the magnetic base. This design effectively improves the launch accuracy of the steel ball while ensuring ease of use. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this invention, the accompanying drawings used in the embodiments are briefly described below, which constitute a part of the specification and are used together with the embodiments of this invention to explain this invention, but do not constitute a limitation on this invention.

[0021] Figure 1 A side sectional view of the present invention in use;

[0022] Figure 2 A side sectional view of the present invention;

[0023] Figure 3 A side view of the structure of this novel invention;

[0024] Figure 4 A front view of the structure of this novel fixing base;

[0025] Figure 5 A schematic diagram of the front view of this novel structure;

[0026] Figure 6 A top view of the structure of this novel fixing base;

[0027] Figure 7 1. Cross-sectional view of the new type of steel ball in conjunction with the guide rail;

[0028] Figure 8 A schematic diagram of the structure of the composite mounting magnetic base disclosed in the prior art;

[0029] Figure 9 A schematic diagram of the structure with an arc-shaped surface in this embodiment of the novel.

[0030] 1. Fixed base; 2. Magnetic base; 3. First conical groove; 4. Steel ball; 5. Guide rail; 6. First connecting block; 7. Second connecting block; 8. Pull rope; 9. Bowstring; 10. First through hole; 11. Vertical section; 12. Horizontal section; 13. Second through hole; 14. Second conical groove; 15. Third connecting block; 16. Fourth connecting block; 17. Arc surface; 41. Initial position; 42. End position; 43. Steel ball movement trajectory; 44. Steel ball forward launch; 20. Bow handle; 30. Bow plate; 40. Pulley; 50. Bowstring; 60. Dividing string middle plate; 70. Existing magnetic base. Detailed Implementation

[0031] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0032] The following embodiments can be understood as explaining a partial structure of the present invention individually, or as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0033] Example 1

[0034] A composite bow launcher structure, such as Figure 1-7 As shown, it includes an L-shaped fixed base 1. The front end of the vertical section 11 of the fixed base 1 is provided with a non-magnetic launching seat, and the top of the horizontal section 12 is provided with a magnetic seat 2 for positioning steel balls. The magnetic seat 2 and the non-magnetic launching seat are connected by a guide rail 5.

[0035] like Figure 8 As shown, this new type of device is installed in the position of the existing magnetic base 70 to replace the existing magnetic base 70. In use, the steel ball 4 is fixed on the magnetic base 2 (whose specific structure is the same as the existing magnetic base, both being ring magnet structures). At this time, the steel ball is positioned by the magnetic base, preventing it from falling off. Then, the bowstring is pulled back, and as the bowstring drives the new device to swing forward at an accelerated speed, the steel ball, due to inertia, detaches from the magnetic base and enters the guide rail 5, eventually falling along the guide rail 5 into the non-magnetic launching seat, where it is launched forward. This configuration achieves positioning of the steel ball before launch, preventing it from falling off, and also overcomes the influence of the magnetic base on the steel ball, improving the launching accuracy.

[0036] Example 2

[0037] like Figure 1 , 2 As shown, the front end of the vertical section 11 is provided with a first conical groove 3, the size of which matches the steel ball 4 to form a non-magnetic launching seat.

[0038] like Figure 1 , 2 As shown, the axis of the first conical groove 3 extends forward in a direction perpendicular to the bowstring. The size and structure of the first conical groove 3 satisfy the condition that the axis of the circle that is tangent to the outer wall of the steel ball 4 and the point of tangency is connected to the first conical groove 3 is coaxial with the first conical groove 3.

[0039] like Figure 1 , 2 As shown, the upper end of the horizontal section 12 is provided with a second conical groove 14, and the inner wall of the second conical groove 14 is embedded with a magnetic seat 2.

[0040] like Figure 1-7 As shown, one end of the second conical groove 14 facing the vertical section 11 is connected to one end of the guide rail 5, and the other end of the guide rail 5 is connected to the groove wall of the first conical groove 3. The guide rail 5 is provided with a guide groove with a V-shaped cross-section (e.g., Figure 7 As shown in the figure, the guide groove is used in conjunction with the steel ball 4.

[0041] like Figure 1 As shown, the height at the connection between the bottom of the guide groove and the wall of the first conical groove 3 is higher than the height of the circle formed by the steel ball 4 and the first conical groove 3 being tangent. The height refers to the height along the axial direction of the first conical groove 3.

[0042] When the steel ball moves along the guide groove to the first conical groove, because there is a height difference between the circle formed by the tangent and the first conical groove, the steel ball is launched forward by the non-magnetic launcher the instant it falls into the first conical groove. If there is no height difference, the steel ball may slide along the wall of the conical groove due to inertia. This new design further ensures the accuracy of steel ball launching.

[0043] Example 3

[0044] like Figure 1 As shown, the vertical distance between the first conical groove 3 and the second conical groove 14 satisfies the condition that the steel ball 4 overcomes the attractive force of the magnetic seat 2 during its launch. That is, as the steel ball is launched forward, it will pass over the magnetic seat, and the distance between the steel ball and the magnetic seat will not affect the trajectory of the launched steel ball. In other words, the vertical distance between the first conical groove 3 and the second conical groove 14, as well as the magnetic force of the magnetic seat, need to be set to meet the above requirements. The above setting issues can be resolved through simple experiments to obtain relevant data.

[0045] Example 4

[0046] like Figure 1-7 As shown, the upper and lower ends of the vertical section 11 are respectively provided with a first connecting block 6 and a second connecting block 7. A pull rope 8 (i.e. a pull rope that pulls the bowstring backward) is connected between the first connecting block 6 and the second connecting block 7 and located on the rear side of the vertical section 11.

[0047] like Figure 1-7 As shown, the upper part of the left and right side walls of the vertical section 11 is provided with a third connecting block 15, and the lower part of the left and right side walls is provided with a fourth connecting block 16. The third connecting block 15 and the fourth connecting block 16 on the same side are respectively tied and fixed to the bowstring 9 of the compound bow.

[0048] like Figure 1-7 As shown, the bottom of the first conical groove 3 and the second conical groove 4 are respectively provided with a first through hole 10 penetrating the rear end of the vertical section 11 (to reduce wind resistance after the steel ball is released) and a second through hole 13 penetrating the bottom of the horizontal section 12 (to reduce the weight of the fixing seat).

[0049] In this embodiment, the specific shapes of the first connecting block, the second connecting block, the third connecting block, and the fourth connecting block can be set as needed to meet the relevant connection requirements. By setting the first through hole and the second through hole, the weight reduction effect of this novel design can be achieved. At the same time, the first through hole can reduce the wind resistance after the steel ball detaches to a certain extent.

[0050] Example 5

[0051] To ensure a smooth transition of the steel ball guide rail, such as Figure 9As shown, the upper edge of the magnetic ring of the magnetic base 2 can be set with an arc-shaped surface 17 that mates with the guide rail 5 to ensure that the steel ball smoothly transitions to the guide rail.

[0052] The working principle of this new type:

[0053] like Figure 1 As shown, before launch, the steel ball is fixed on the magnetic base 2, which can achieve the positioning of the steel ball 4 before launch, prevent it from falling off, and improve the convenience of use. During launch, the fixed base 1 moves forward with the bowstring 9 and accelerates. Due to inertia, the steel ball 4 moves from the initial position 41 along the guide rail 5 to the first conical groove 3, and is launched forward by the groove wall (non-magnetic launch base) of the first conical groove at the moment it falls into the first conical groove (end position 42). Since the trajectory of the steel ball 4 is no longer affected by the magnetic base 2, the launch accuracy can be effectively improved. This eliminates the problem in the prior art where the steel ball needs to overcome the attraction of the magnetic base in an instant, which causes a sudden change in the force state and leads to a decrease in launch accuracy. Thus, the accuracy of launching steel balls by the dual-purpose composite bow is effectively improved.

Claims

1. A composite bow launcher structure, characterized in that: It includes an L-shaped fixing base, with a non-magnetic launching base at the front end of the vertical section of the fixing base and a magnetic base for positioning steel balls at the top of the horizontal section. The magnetic base and the non-magnetic launching base are connected by a guide rail.

2. The composite bow launcher structure as described in claim 1, characterized in that: The vertical section has a first conical groove at its front end, and the size of the first conical groove matches the steel ball to form a non-magnetic launching seat.

3. The composite bow launcher structure as described in claim 2, characterized in that: The axis of the first conical groove extends forward perpendicular to the bowstring direction. The dimensions and structure of the first conical groove satisfy the condition that the axis of the circle that is tangent to the outer wall of the steel ball and the point of tangency is coaxial with the first conical groove.

4. The composite bow launcher structure as described in claim 3, characterized in that: The upper end of the horizontal section is provided with a second conical groove, and a magnetic seat is embedded in the inner wall of the second conical groove.

5. The composite bow launcher structure as described in claim 4, characterized in that: The second conical groove is connected to one end of the guide rail at the vertical end, and the other end of the guide rail is connected to the groove wall of the first conical groove. The guide rail is provided with a V-shaped guide groove, which is used in conjunction with the steel ball.

6. The composite bow launcher structure as described in claim 5, characterized in that: The height at the connection between the bottom of the guide groove and the wall of the first conical groove is higher than the height of the circle formed by the steel ball and the first conical groove being tangent. The height refers to the height along the axis of the first conical groove.

7. The composite bow launcher structure as described in claim 6, characterized in that: The vertical distance between the first and second conical grooves satisfies the condition that the attraction of the magnetic seat on the steel ball is overcome during the steel ball launching process.

8. The composite bow launcher structure as described in claim 7, characterized in that: The vertical section is provided with a first connecting block and a second connecting block at its upper and lower ends, respectively, and a pull rope is connected between the first connecting block and the second connecting block and at the rear side of the vertical section.

9. The composite bow launcher structure as described in claim 8, characterized in that: The upper part of the left and right side walls of the vertical section is provided with a third connecting block, and the lower part of the left and right side walls is provided with a fourth connecting block. The third connecting block and the fourth connecting block on the same side are respectively tied and fixed to the bowstring of the compound bow.

10. The composite bow launcher structure as described in claim 9, characterized in that: The bottom of the first conical groove and the second conical groove are respectively provided with a first through hole penetrating the rear end of the vertical section and a second through hole penetrating the bottom of the horizontal section.

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