A hanger device for a compound bow binary wheel

Abstract

The utility model belongs to composite bow processing technical field relates to a kind of lifting ring device for composite bow binary wheel, including lifting ring main part and lifting ring column, the central part of lifting ring main part is provided with lifting ring hole along the axial direction, the lifting ring column is rotatable and is penetrated in lifting ring hole, and the top of lifting ring column is equipped with adjusting block, the adjusting block is connected in the top of the central part of lifting ring main part by mortise and tenon structure, and the top central part of adjusting block is equipped with adjusting hole, the outer surface of lifting ring main part is provided with string groove for double-head bow string winding along the both sides of lifting ring hole symmetry, the lower end of lifting ring column extends to the below of lifting ring hole, and the lower end of lifting ring column is equipped with string hole for single-head bow string connection. The utility model has the advantages of simple structure, easy operation etc., the length of auxiliary string can be quickly adjusted, so that using bow opener to adjust upper and lower cam synchronism can be avoided, and the adjustment efficiency of the length of auxiliary string is significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of composite bow processing technology, specifically, it relates to a lifting ring device for a binary wheel of a composite bow. Background Technology

[0002] The binary wheel design of a compound bow is an improved dual-wheel system that uses two cams to control the secondary string, creating a free-floating system that allows the cams to automatically balance bow arm deviations or secondary string length. This design eliminates synchronization problems and ensures a straight arrow trajectory. At the factory, the secondary string length of a compound bow is primarily determined based on the directional position of the eccentric wheel assembly and the standard bending force on the bow limbs. In existing technology, compound bows require a portable drawstring to retract the bow limbs during use to shorten or lengthen the secondary string, thereby altering the bow's draw weight.

[0003] As can be seen from the above, in the existing technology, the adjustment of the secondary string length of a compound bow can only be achieved with the help of a bow opener, which is inconvenient and inefficient. Therefore, it is urgent to improve it. Utility Model Content

[0004] The purpose of this invention is to provide a lifting ring device for a compound bow binary wheel to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A lifting ring device for a compound bow binary wheel includes a lifting ring body and a lifting ring post. The lifting ring body has a lifting ring hole axially arranged in the center. The lifting ring post is rotatably inserted through the lifting ring hole, and an adjustment block is provided at the top of the lifting ring post. The adjustment block is engaged with the top of the center of the lifting ring body by a tenon structure, and an adjustment hole is provided at the center of the top of the adjustment block. The outer surface of the lifting ring body has symmetrical string grooves arranged on both sides of the lifting ring hole for winding double-headed bowstrings. The lower end of the lifting ring post extends to the bottom of the lifting ring hole, and a string hole for connecting a single-headed bowstring is provided at the lower end of the lifting ring post.

[0006] Preferably, the adjustment hole is a polygonal adjustment hole; more preferably, the adjustment hole is a regular hexagonal adjustment hole.

[0007] Preferably, the latch structure includes an annular convex-concave guide rail structure one disposed on the bottom end face of the adjusting block and an annular convex-concave guide rail structure two disposed on the top end face of the center part of the lifting ring body, wherein the annular convex-concave guide rail structure one and the annular convex-concave guide rail structure two are interlocked. More preferably, the protruding cross-sections on the annular convex-concave guide rail structure one and the annular convex-concave guide rail structure two include, but are not limited to, arc-shaped, trapezoidal, triangular or rectangular shapes. This facilitates turning during adjustment and enables automatic anti-retraction after adjustment.

[0008] Preferably, the top two sides of the main body of the lifting ring are shaped like ram's horns, which helps to extend the vertical chord groove and protect and guide the double-headed bowstring.

[0009] Preferably, the bottom of the lifting ring body is provided with two weight-reducing grooves, and the two weight-reducing grooves are symmetrically arranged on both sides of the lifting ring hole, which helps to reduce the weight of the device.

[0010] The working principle of this utility model is to change the secondary string of the binary wheel to a double-ended string on one end and a single-ended string on the other. In use, the double-ended string passes around the string groove and connects to the main body of the eye ring, while the single-ended secondary string passes through the eye ring hole at the lower end of the eye ring post and is tied to the lower end of the eye ring post. By selecting a wrench that matches the adjustment hole, the adjustment block can be rotated to tighten or loosen the secondary string, thereby achieving flexible adjustment of the secondary string length. After adjustment, the eye ring post can achieve the function of preventing loosening and backlashing under the interlocking action of the tenon structure.

[0011] Compared with the prior art, the utility model has the following beneficial effects: This invention has the advantages of simple structure and convenient operation, and can realize the rapid adjustment of the secondary string length, thereby avoiding the need to use a bow opener to adjust the synchronization of the upper and lower cams, and significantly improving the adjustment efficiency of the secondary string length. Attached Figure Description

[0012] The utility model will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural schematic diagram of the present invention in the embodiment; Figure 2 This is a three-dimensional exploded structure schematic diagram of the present invention from one perspective in the embodiment; Figure 3 This is a three-dimensional exploded structure schematic diagram of the present invention from another perspective in the embodiment; Figure 4 This is a schematic diagram of the usage state of the present invention from one perspective in the embodiment; Figure 5 This is a schematic diagram of the usage state of the present invention from another perspective in the embodiments.

[0013] In the diagram: 1. Ring body; 2. Ring post; 3. Ring hole; 4. Adjusting block; 5. Adjusting hole; 6. String groove; 7. String hole; 8. Annular concave-convex guide rail structure one; 9. Annular concave-convex guide rail structure two; 10. Weight reduction groove; 11. Double-headed bowstring; 12. Single-headed bowstring. Detailed Implementation

[0014] The utility model will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made by those skilled in the art based on the embodiments of the utility model without inventive effort to obtain all other embodiments should be included within the protection scope of the utility model.

[0015] Example like Figures 1-5 As shown, this embodiment provides a lifting ring device for a compound bow binary wheel, including a lifting ring body 1 and a lifting ring post 2. The center of the lifting ring body is provided with a lifting ring hole 3 along the axial direction. The lifting ring post is rotatably inserted through the lifting ring hole, and the top of the lifting ring post is provided with an adjustment block 4. The adjustment block is snapped onto the top of the center of the lifting ring body by a tenon structure, and the top center of the adjustment block is provided with an adjustment hole 5. The outer surface of the lifting ring body is symmetrically provided with string grooves 6 for winding double-headed bowstrings 11 along both sides of the lifting ring hole. The lower end of the lifting ring post extends to the bottom of the lifting ring hole, and the lower end of the lifting ring post is provided with a string hole 7 for connecting a single-headed bowstring 12.

[0016] Specifically, the adjustment hole is a polygonal adjustment hole, such as an equilateral triangular adjustment hole, a regular square adjustment hole, a pentagonal adjustment hole, a regular hexagonal adjustment hole, etc. Figure 2 As shown, the adjustment hole in this example is a regular hexagonal polygonal adjustment hole.

[0017] Following the above embodiments, please refer to Figure 2 and Figure 3 The locking structure includes an annular convex-concave guide rail structure 1 8 disposed on the bottom end face of the adjusting block and an annular convex-concave guide rail structure 2 9 disposed on the top end face of the center part of the lifting ring body. The annular convex-concave guide rail structure 1 and the annular convex-concave guide rail structure 2 are interlocked. More specifically, the protruding cross-sections of the annular convex-concave guide rail structure 1 and the annular convex-concave guide rail structure 2 are arc-shaped, which facilitates turning during adjustment and achieves the function of automatic anti-reverse after adjustment.

[0018] In this example, the top two sides of the main body of the lifting ring are set in a ram's horn shape, which helps to extend the vertical chord groove and plays a protective and guiding role for the double-headed bowstring.

[0019] For more details, please refer to Figure 1 and Figure 3 The bottom of the lifting ring body is provided with two weight-reducing grooves 10, and the two weight-reducing grooves are symmetrically arranged on both sides of the lifting ring hole, which helps to reduce the weight of the device.

[0020] like Figure 4 and Figure 5As shown, the working principle of this utility model is as follows: This utility model is used to change the secondary string of the binary wheel to one end with two ends and the other end with one end. In use, the double-ended bowstring passes around the string groove and connects to the main body of the eye ring, while the single-ended secondary string passes through the eye ring hole at the lower end of the eye ring post and is tied to the lower end of the eye ring post. By selecting a regular hexagonal wrench that matches the adjustment hole, the adjustment block can be rotated to tighten or loosen the secondary string, thereby realizing the flexible adjustment of the secondary string length. After adjustment, the eye ring post can achieve the function of preventing loosening and backlashing under the interlocking action of the tenon structure.

[0021] The above description is merely a preferred embodiment of the present invention and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A lifting ring device for a compound bow binary wheel, comprising a lifting ring body, wherein a lifting ring hole is provided axially at the center of the lifting ring body, characterized in that: It also includes a ring post, which is rotatably inserted into the ring hole, and has an adjustment block at its top. The adjustment block is engaged with the top of the center of the ring body by a tenon structure, and has an adjustment hole at the center of the top of the adjustment block. The outer surface of the ring body has symmetrical string grooves for winding double-headed bowstrings along both sides of the ring hole. The lower end of the ring post extends to the bottom of the ring hole, and has a string hole for connecting a single-headed bowstring at its lower end.

2. The lifting ring device for a composite bow binary wheel according to claim 1, characterized in that: The adjustment hole is a polygonal adjustment hole.

3. The lifting ring device for a composite bow binary wheel according to claim 2, characterized in that: The adjustment hole is a regular hexagonal polygonal adjustment hole.

4. The lifting ring device for a composite bow binary wheel according to claim 1, characterized in that: The latch structure includes an annular concave-convex guide rail structure one disposed on the bottom end face of the adjustment block and an annular concave-convex guide rail structure two disposed on the top end face of the center part of the lifting ring body, wherein the annular concave-convex guide rail structure one and the annular concave-convex guide rail structure two are interlocked.

5. The lifting ring device for a composite bow binary wheel according to claim 4, characterized in that: The protruding cross sections on the annular concave-convex guide rail structure one and the annular concave-convex guide rail structure two include, but are not limited to, arc-shaped, trapezoidal, triangular or rectangular shapes.

6. The lifting ring device for a composite bow binary wheel according to claim 1, characterized in that: The top two sides of the main body of the lifting ring are shaped like ram's horns.

7. The lifting ring device for a composite bow binary wheel according to claim 1, characterized in that: The bottom of the lifting ring body is provided with two weight-reducing grooves, and the two weight-reducing grooves are symmetrically arranged on both sides of the lifting ring hole.

Images