Bow piece seat center shaft fixing structure
By providing an annular groove on the outer surface of the adjusting rod cylinder and installing a limit piece, the shaking problem of the adjusting rod cylinder is solved and the shooting accuracy of the compound bow is improved.
Patent Information
- Application Number
- CN202422960097.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-02
AI Technical Summary
In the existing compound bow structure, there is a shaking gap on both sides of the adjustment rod cylinder, which causes the plate holder to vibrate and affect shooting accuracy, and there is a lack of effective solutions.
An annular groove is provided on the outer surface of the adjusting rod cylinder, and a limiting piece is installed on the bow body. The inner end of the limiting piece is inserted into the annular groove and contacts and cooperates with both sides of the annular groove for limiting. Limiting structures such as limiting screws or limiting pins are used to reduce the shaking of the adjusting rod cylinder.
It effectively reduces the left and right shaking gap of the adjustment rod cylinder, avoids the limbs from vibrating due to the limb seat, and improves shooting accuracy.
Smart Images
Figure CN223346018U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of bows and arrows, in particular to a central axis fixing structure of a bow and arrow piece seat. Background technology:
[0002] Currently, in a compound bow, one end of the limb is used to mount the bowstring, while the other end is fixed to the limb holder. The limb holder and the bow body are rotatably connected via a cylindrical adjustment rod, allowing for adjustment of the angle between the limb holder and the bow body. Once the angle is adjusted, a bolt is threaded through the elongated hole between the limb holder and the bow body and into the threaded hole in the center of the cylinder to secure the bow. During shooting, the bowstring causes the limb to vibrate, which in turn causes the limb to vibrate. When the limb holder and the bow body are secured via the bolt, a clearance of 0.5-1 mm is required between the bolt and the elongated hole in the limb holder and the bow body to facilitate the bolt's passage. This results in a 0.5-1 mm clearance on both sides of the cylinder. Bows and arrows are high-precision shooting equipment, and the presence of this clearance inevitably affects shooting accuracy. Currently, there is no effective solution to this problem.
[0003] In summary, how to solve the shaking problem of the rod adjustment cylinder has become a technical problem that needs to be solved urgently in the industry. Utility model content:
[0004] In order to make up for the deficiencies of the prior art, the utility model provides a bow and arrow piece seat center axis fixing structure, which solves the problem that there is a shaking gap on both sides of the adjustment rod cylinder between the piece seat and the bow body, the piece seat shakes, and the shooting accuracy is affected.
[0005] The technical solution adopted by the present invention to solve the above technical problems is:
[0006] A bow and arrow piece seat center axis fixing structure includes a piece seat and a bow body. The piece seat and the bow body are rotatably connected through an adjusting rod cylinder. The adjusting rod bolt passes through the long holes of the piece seat and the bow body and is threadedly connected to the threaded hole in the middle of the adjusting rod cylinder. The outer surface of the adjusting rod cylinder is provided with an annular groove. A limiting piece is installed on the side of the bow body close to the adjusting rod cylinder. The inner end of the limiting piece is inserted into the annular groove. The inner end of the limiting piece contacts and cooperates with both sides of the annular groove to limit the position.
[0007] The limiting member includes a limiting screw, a limiting pin or a limiting column.
[0008] The limiting member is a limiting screw, and the bow body is provided with a threaded hole for installing the limiting screw.
[0009] The limit screw is a ball screw, and a steel ball is provided at the inner end of the ball screw.
[0010] The annular groove is an arc-shaped groove that matches the shape of the steel ball.
[0011] The steel balls are in rolling contact with the arc-shaped grooves.
[0012] Pads are respectively provided between the two sides of the top of the bow body and the sheet seat.
[0013] The cushion block is made of plastic or rubber.
[0014] The utility model adopts the above solution and has the following advantages:
[0015] By providing an annular groove on the outer surface of the adjusting rod cylinder and installing a limit piece on the bow body, the inner end of the limit piece is inserted into the annular groove, and the inner end of the limit piece contacts and cooperates with both sides of the annular groove to limit the position. Without affecting the rotation of the adjusting rod cylinder, the limit piece can greatly reduce the left and right shaking gap of the adjusting rod cylinder, thereby preventing the limbs from shaking left and right due to the limb seat, and ultimately improving shooting accuracy. Description of the drawings:
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0017] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.
[0018] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the cylindrical part of the adjusting rod of the utility model.
[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the bow body of the present utility model.
[0020] In the figure, 1, piece seat, 2, bow body, 3, adjusting rod cylinder, 4, adjusting rod bolt, 5, long hole, 6, annular groove, 7, limit piece, 8, spacer, 9, bow piece. Specific implementation method:
[0021] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0022] like Figure 1-4 As shown, a bow and arrow piece seat center axis fixing structure includes a piece seat 1 and a bow body 2. The piece seat 1 and the bow body 2 are rotatably connected through an adjusting rod cylinder 3. An adjusting rod bolt 4 passes through an elongated hole 5 of the piece seat 1 and the bow body 2 and is threadedly connected to a threaded hole in the middle of the adjusting rod cylinder 3. An annular groove 6 is provided on the outer surface of the adjusting rod cylinder 3. A limiting member 7 is installed on the side of the bow body close to the adjusting rod cylinder 3. The inner end of the limiting member 7 is inserted into the annular groove 6. The inner end of the limiting member 7 contacts and cooperates with both sides of the annular groove 6 for limiting.
[0023] The limiting member 7 includes but is not limited to a limiting screw, a limiting pin or a limiting column. Other limiting structures in the field that can be inserted into the annular groove 6 and cooperate with the annular groove 6 are all within the protection scope of this application.
[0024] Preferably, the limiting member 7 of the present application is a limiting screw, and the bow body 2 is provided with a threaded hole for installing the limiting screw.
[0025] Preferably, the limit screw of the present application adopts a ball screw, and a steel ball is provided at the inner end of the ball screw.
[0026] The annular groove 6 is an arc-shaped groove that matches the shape of the steel ball.
[0027] The steel ball and the arc groove are in rolling contact with each other with high precision, and the gap can be controlled within 0.05mm, which does not affect the rotation of the adjusting rod cylinder 3, but can effectively prevent the adjusting rod cylinder 3 from shaking left and right, thereby preventing the limb seat 1 from driving the bow limb 9 to shake left and right, thereby improving shooting accuracy.
[0028] Pads 8 are provided between the top sides of the bow body 2 and the sheet seat 1 respectively. The pads 8 are made of plastic or rubber. The pads 8 can limit the position between the top of the bow body 2 and the sheet seat 1 to prevent the sheet seat 1 from shaking left and right.
[0029] Working principle:
[0030] During installation, the original installation structure does not need to be changed. It is only necessary to open an annular groove 6 on the outer surface of the adjusting rod cylinder 3, and open a threaded hole on the side of the bow body 2 close to the adjusting rod cylinder 3, and then screw the limit screw into the threaded hole so that the inner end of the limit screw is inserted into the annular groove 6. The inner end of the limit screw is in contact with both sides of the annular groove 6 to limit the position. When the adjusting rod cylinder 3 rotates, it rotates under the restriction and guidance of the limit screw, which can greatly reduce the left and right shaking gap of the adjusting rod cylinder 3 and avoid the adjusting rod cylinder 3 shaking left and right. It can not only improve the adjusting rod accuracy, but also avoid the limb seat 1 driving the bow limb 9 to shake left and right, and ultimately improve the shooting accuracy.
[0031] The above specific implementation methods cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or transformation made to the implementation methods of the present utility model falls within the protection scope of the present utility model.
[0032] Anything not described in detail in the present invention is well known to those skilled in the art.
Claims
1. A bow and arrow piece holder center axis fixing structure, comprising a piece holder and a bow body, wherein the piece holder and the bow body are rotatably connected via a rod adjustment cylinder, and a rod adjustment bolt passes through elongated holes in the piece holder and the bow body and is threadedly connected to a threaded hole in the center of the rod adjustment cylinder, characterized in that: The outer surface of the rod adjusting cylinder is provided with an annular groove, and a limiting piece is installed on the side of the bow body close to the rod adjusting cylinder. The inner end of the limiting piece is inserted into the annular groove, and the inner end of the limiting piece contacts and cooperates with both sides of the annular groove for limiting.
2. The bow and arrow piece seat center axis fixing structure according to claim 1, characterized in that: The limiting member includes a limiting screw, a limiting pin or a limiting column.
3. The bow and arrow piece seat center axis fixing structure according to claim 2, characterized in that: The limiting member is a limiting screw, and the bow body is provided with a threaded hole for installing the limiting screw.
4. The bow and arrow piece seat center axis fixing structure according to claim 3, characterized in that: The limit screw is a ball screw, and a steel ball is provided at the inner end of the ball screw.
5. The bow and arrow piece seat center axis fixing structure according to claim 4, characterized in that: The annular groove is an arc-shaped groove that matches the shape of the steel ball.
6. The bow and arrow piece seat center axis fixing structure according to claim 5, characterized in that: The steel balls are in rolling contact with the arc-shaped grooves.
7. The bow and arrow piece seat center axis fixing structure according to claim 1, characterized in that: Pads are respectively provided between the two sides of the top of the bow body and the sheet seat.
8. The bow and arrow piece seat center axis fixing structure according to claim 7, characterized in that: The cushion block is made of plastic or rubber.