Adjustable composite bow wheel set

Abstract

The utility model discloses an adjustable composite bow wheel set which comprises a first string wheel and a second string wheel, a first main string and a second main string are installed between the first string wheel and the second string wheel, the first string wheel and the second string wheel are the same in structure, and each of the first string wheel and the second string wheel comprises a string wheel body. An adjusting assembly used for adjusting the first main chord is arranged on one side of the chord wheel body and comprises an eccentric cam, a chord tying column and a positioning column, the chord tying column is installed on one side of the chord wheel body, the eccentric cam is rotationally installed on the other side of the chord wheel body, and the eccentric cam and the chord wheel body are fixed through the positioning column; the two ends of the first main chord are tied to the two eccentric cams respectively, and the two ends of the second main chord are tied to the two chord tying columns respectively. According to the utility model, the length of the first main chord can be adjusted by rotating the eccentric cam, the eccentric cam and the chord wheel main body are fixed through the positioning column after adjustment, the adjustment precision is high, and the adjustment is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of compound bow, specifically adjustable compound bow wheel set. BACKGROUND

[0002] The compound bow is mainly assembled by the bow handle, the wheel set, the bow string, the bow piece and the bow piece seat.

[0003] The existing publication No. CN222188020U discloses a compound bow eccentric cam set, which comprises a first bow wheel and a second bow wheel, four auxiliary strings and two main strings are installed between the first bow wheel and the second bow wheel, the first bow wheel and the second bow wheel are structurally identical, the first bow wheel and the second bow wheel each comprise a bow wheel main body, a string groove is formed in the edge of the bow wheel main body, a bow wheel bolt column is installed on the two sides of the bow wheel main body, an auxiliary wheel is installed on the two sides of the bow wheel main body, and a rotating shaft is installed on the bow wheel main body, one end of the two main strings is along the string groove of the first bow wheel and is fixed on the main string bolt column of the first bow wheel, the other end of the two main strings is along the string groove of the second bow wheel and is fixed on the main string bolt column of the second bow wheel, the two ends of the four auxiliary cables are synchronously rotated along with the wheel shaft, and the auxiliary cables are symmetrically distributed, so that the auxiliary strings on the two sides of the auxiliary wheel are uniformly stressed, and the bow wheel is prevented from being twisted.

[0004] The length of the existing main string is inconvenient to adjust, and the adjustment accuracy is low, in order to solve the above technical problems, we propose a kind of adjustable compound bow wheel set. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of adjustable compound bow wheel set to solve the problems in prior art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of adjustable compound bow wheel set, including first string wheel and second string wheel, first string wheel and second string wheel are installed with first main string and second main string between, first string wheel and second string wheel are structurally identical. The first string wheel and the second string wheel each comprise a string wheel main body, one side of the string wheel main body is provided with an adjusting assembly for adjusting the first main string.

[0007] The adjusting assembly comprises eccentric cam, bolt string column and positioning column, the string wheel main body is installed with bolt string column on one side, the string wheel main body is rotatably installed with eccentric cam on the other side, the eccentric cam and the string wheel main body are fixed by positioning column, the two ends of the first main string are tied on two eccentric cams respectively, and the two ends of the second main string are tied on two bolt string columns respectively.

[0008] Preferably, the string wheel main body is provided with a plurality of adjusting holes matched with the positioning column, and the plurality of adjusting holes are distributed in a circular arc shape.

[0009] Preferably, the string peg column penetrates the string wheel body, and the string wheel body is rotatably installed on the column after the string peg column penetrates the string wheel body.

[0010] Preferably, the eccentric cam comprises an eccentric cam body and a positioning plate, the eccentric cam body and the positioning plate are in an integral structure, the eccentric cam body is provided with an axle hole for the string peg column to penetrate, an edge portion of the eccentric cam body is provided with a string groove, and the positioning plate is provided with a penetration hole for the positioning column to penetrate.

[0011] Compared with the prior art, the utility model has the beneficial effects that: by rotating the eccentric cam, the length of the first main string can be adjusted, after the adjustment, the eccentric cam and the string wheel body are fixed through the positioning column, the adjustment precision is high, and the adjustment is more convenient; by adjusting the length of the first main string, the trajectory can be controlled to be left-biased or right-biased, and the stability is higher. BRIEF DESCRIPTION OF DRAWINGS

[0012] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation to the utility model. In the drawings:

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the structural schematic diagram of the string wheel of the utility model;

[0015] Figure 3 It is the structural schematic diagram of the utility model Figure 2 It is the structural schematic diagram of another view;

[0016] Figure 4 It is the exploded view of the string wheel of the utility model;

[0017] Figure 5 It is the structural schematic diagram of the eccentric cam of the utility model;

[0018] Figure 6 It is the structural schematic diagram of the utility model in use.

[0019] In the drawing: 1, first main string; 2, first string wheel; 3, second string wheel; 4, second main string; 31, string wheel body; 32, adjusting hole; 33, eccentric cam; 34, string peg column; 35, positioning column; 331, eccentric cam body; 332, axle hole; 333, string groove; 334, positioning plate; 335, penetration hole. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

[0021] Please refer to Figures 1-6 In the embodiments of the utility model, an adjustable compound bow wheel set comprises a first string wheel 2 and a second string wheel 3, a first main string 1 and a second main string 4 are installed between the first string wheel 2 and the second string wheel 3, the first string wheel 2 and the second string wheel 3 are of the same structure, and the first string wheel 2 and the second string wheel 3 each comprise a string wheel body 31, one side of the string wheel body 31 is provided with an adjusting assembly for adjusting the first main string 1.

[0022] The adjusting assembly comprises eccentric cams 33, string peg columns 34 and positioning columns 35, the string peg columns 34 are installed on one side of the string wheel body 31, the eccentric cams 33 are rotatably installed on the other side of the string wheel body 31, the eccentric cams 33 and the string wheel body 31 are fixed through the positioning columns 35, and the two ends of the first main string 1 are tied on the two eccentric cams 33 respectively, and the two ends of the second main string 4 are tied on the two string peg columns 34 respectively.

[0023] The string wheel body 31 is provided with a plurality of adjusting holes 32 matched with the positioning columns 35, and the plurality of adjusting holes 32 are distributed in a circular arc shape; the string peg columns 34 penetrate through the string wheel body 31, and the string wheel body 31 is rotatably installed on the column body after the string peg columns 34 penetrate through the string wheel body 31; the length of the first main string 1 can be adjusted by rotating the eccentric cam 33, the eccentric cam 33 and the string wheel body 31 are fixed through the positioning column 35 after adjustment, the adjustment precision is high, and the adjustment is more convenient; the trajectory can be controlled to be left-biased or right-biased by adjusting the length of the first main string, and the stability will be higher.

[0024] The eccentric cam 33 comprises an eccentric cam body 331 and a positioning plate 334, the eccentric cam body 331 and the positioning plate 334 are of an integral structure, the eccentric cam body 331 is provided with a shaft hole 332 for the string peg column 34 to penetrate through, the edge portion of the eccentric cam body 331 is provided with a string groove 333, the string groove 333 is used for the passing of the main string, and the positioning plate 334 is provided with a through hole 335 for the positioning column 35 to penetrate through.

[0025] The working principle of the utility model is: through rotating eccentric cam 33, the length of first main chord 1 is adjusted, after adjusting, eccentric cam 33 and chord wheel main body 31 are fixed through positioning column 35, the adjusting precision is high, and the adjusting is more convenient; the length of first main chord is adjusted, and the trajectory is controlled to be left or right, and the stability is higher.

[0026] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. An adjustable compound bow wheel set comprising a first cam wheel (2) and a second cam wheel (3), between which a first main string (1) and a second main string (4) are mounted, characterized in that: The first string wheel (2) and the second string wheel (3) are structurally identical, and each of the first string wheel (2) and the second string wheel (3) comprises a string wheel body (31) provided with an adjusting assembly for adjusting the first main string (1) on one side.

2. An adjustable compound-bow wheel set according to claim 1, characterized in that: The adjusting assembly comprises eccentric cams (33), string peg columns (34) and positioning columns (35), the string peg columns (34) are mounted on one side of the string wheel body (31), the eccentric cams (33) are rotatably mounted on the other side of the string wheel body (31), the eccentric cams (33) and the string wheel body (31) are fixed through the positioning columns (35), and the first main string (1) is tied on the two eccentric cams (33) respectively, and the second main string (4) is tied on the two string peg columns (34) respectively.

3. An adjustable compound-bow wheel set according to claim 2, wherein: The string wheel body (31) is provided with a plurality of adjusting holes (32) matched with the positioning columns (35), and the plurality of adjusting holes (32) are distributed in a circular arc shape.

4. An adjustable compound-bow wheel set according to claim 2, wherein: The string peg column (34) penetrates the string wheel body (31), and the string wheel body (31) is rotatably mounted on the column body after the string peg column (34) penetrates the string wheel body (31).

5. An adjustable compound-bow wheel set according to claim 2, wherein: The eccentric cam (33) comprises an eccentric cam body (331) and a positioning plate (334), the eccentric cam body (331) and the positioning plate (334) are in an integrated structure, the eccentric cam body (331) is provided with a shaft hole (332) for the string peg column (34) to penetrate, the edge of the eccentric cam body (331) is provided with a string groove (333), and the positioning plate (334) is provided with a through hole (335) for the positioning column (35) to penetrate.

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