Guide assembly for steel ball ejection and steel ball ejection composite bow

By using a design with four cylindrical guide rods and support arms in the compound bow, the problems of rotation and friction caused by the contact between the steel ball and the U-shaped groove are solved, achieving stable sliding of the steel ball and long service life of the guide rods, thus improving the competitive and recreational aspects and service life of the compound bow.

CN223741336UActive Publication Date: 2025-12-30SHANDONG GONGDAO OUTDOOR PRODUCTS CO LTD
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Patent Information

Application Number
CN202520423212.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2025-12-30
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

In existing steel ball launching composite bows, the steel balls rotate and bounce at high speed when they come into contact with the sidewall of the U-shaped groove, resulting in severe friction and affecting launching accuracy and service life.

Method used

Four cylindrical guide slides are used to form a guide slide. The steel ball makes point contact with the guide slide. The gap is reduced and the bounce is limited by precise positioning. The cylindrical guide slides are fixed by support arms and connecting seats.

Benefits of technology

It improves the stability of steel ball sliding and the service life of guide rods, reduces wear, and enhances the accuracy and lifespan of the composite bow.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a steel ball catapulting guide assembly and a steel ball launching composite bow, which comprise four cylindrical guide slide bars, a cylindrical guide slide way is formed among the four cylindrical guide slide bars, the outer side walls of the four cylindrical guide slide bars are all tangent to the outer side wall of the cylindrical guide slide way, and the cylindrical guide slide way is arranged on the guide assembly. Wherein two cylindrical guide sliding rods are located on the left side and the right side of the upper portion of the cylindrical guide sliding way, and the other two cylindrical guide sliding rods are located on the left side and the right side of the lower portion of the cylindrical guide sliding way. The four cylindrical guide sliding rods are easy to realize accurate positioning in the actual machining process, so that the gaps between the steel balls and the side walls of the cylindrical guide sliding rods can be greatly reduced, the bounce amount of the steel balls in the moving process can be reduced, and meanwhile, the steel balls are in point contact with the cylindrical guide sliding rods, so that the service life of the steel balls is prolonged. And the abrasion condition of the cylindrical guide sliding rod can be reduced, so that the service life of the composite bow can be prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of steel ball launching composite bow technology, specifically a steel ball launching guide component and a steel ball launching composite bow. Background Technology

[0002] Existing ball-launching compound bows typically use ball-launching tracks composed of two U-shaped grooves on opposing profiles, with the ball held within each groove. Due to manufacturing limitations, a gap exists between the ball and the sidewalls of the U-shaped grooves. When a high-speed moving ball contacts the sidewall, it rotates and bounces rapidly. Furthermore, because the contact between the ball's sidewall and the U-shaped groove is primarily line or surface contact, friction between the ball and the groove walls is significant. Over time, this reduces the bow's launching accuracy, impacting its competitive and recreational performance, and shortening its lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a guide assembly for steel ball launching and a composite bow for launching steel balls. The four cylindrical guide slides are easy to accurately position during actual processing, which can greatly reduce the gap between the steel ball and the side wall of the cylindrical guide slide, thereby reducing the amount of jumping of the steel ball during movement. At the same time, the steel ball and the cylindrical guide slide are in point contact, which can reduce the wear of the cylindrical guide slide and thus extend the service life of the composite bow.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a guide assembly for steel ball ejection, including four cylindrical guide slide rods, forming a cylindrical guide slide between the four cylindrical guide slide rods, the outer side walls of the four cylindrical guide slide rods being tangent to the outer side wall of the cylindrical guide slide, wherein two of the cylindrical guide slide rods are located on the upper left and right sides of the cylindrical guide slide, and the other two cylindrical guide slide rods are located on the lower left and right sides of the cylindrical guide slide.

[0005] Preferably, the four cylindrical guide slide rods are distributed symmetrically in pairs, one above the other and the other to the left and right, on the outer side of the cylindrical guide slide.

[0006] Preferably, the guide assembly further includes a first support arm and a second support arm, which are arranged in a parallel vertical position and form a rubber band slide between them. The left and right sides of the cylindrical guide slide are connected to the rubber band slide. Two cylindrical guide rods are disposed at the bottom of the first support arm, and the other two cylindrical guide rods are disposed at the upper part of the second support arm. A first anti-collision gap is provided between the bottom middle position of the first support arm and the upper part of the cylindrical guide slide, and a second anti-collision gap is provided between the upper middle position of the second support arm and the bottom of the cylindrical guide slide.

[0007] Furthermore, the guide assembly also includes an integrated connecting seat, the front parts of the first support arm and the second support arm are fixedly sleeved in the integrated connecting seat, a steel ball ejection outlet is provided at the front part of the integrated connecting seat, the steel ball ejection outlet is coaxially distributed with the cylindrical guide slide, and the steel ball in the cylindrical guide slide can slide out from the steel ball ejection outlet.

[0008] Furthermore, the first support arm and the second support arm are fixedly connected to the integrated connecting seat by bolt connection.

[0009] Furthermore, the guide assembly also includes a split-type connector, which includes a left connector and a right connector. The left connector enables a fixed connection between the rear left side of the first support arm and the second support arm, and the right connector enables a fixed connection between the rear right side of the first support arm and the second support arm.

[0010] Furthermore, both the left and right connecting seats are fixedly connected to the corresponding first and second support arms using bolts.

[0011] A composite bow for launching steel balls includes a guide assembly for launching steel balls as described above.

[0012] The beneficial effects of this utility model are as follows: The structure of this utility model is simple and easy to manufacture. In actual processing, based on existing machining techniques, the precise positioning of the four cylindrical guide slides can be easily achieved. After the precise positioning of the four cylindrical guide slides, the precise machining of the cylindrical guide slide can be achieved. High precision in the cylindrical guide slide results in a small gap between the sidewall of the cylindrical guide slide and the steel ball, thereby reducing the amount of bounce of the steel ball within the cylindrical guide slide, allowing the steel ball to slide stably. Simultaneously, the contact between the steel ball and the cylindrical guide slide is point contact, resulting in less wear on the steel ball during sliding. The small bounce of the steel ball and the minimal wear on the cylindrical guide slide greatly improve the service life of the composite bow. When the four cylindrical guide slides are distributed in pairs vertically and horizontally, it facilitates the limiting of the steel ball's bounce, thus improving the sliding stability of the steel ball within the cylindrical guide slide. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A front view of a first specific embodiment of a guide assembly for steel ball ejection;

[0015] Figure 2 This is a schematic diagram showing the distribution of steel balls within the guide assembly for steel ball ejection.

[0016] Figure 3 A schematic diagram of a second specific embodiment of a guide assembly for steel ball ejection;

[0017] Figure 4 A front view of a second specific embodiment of a guide assembly for steel ball ejection;

[0018] Figure 5 A schematic diagram of a third specific embodiment of a guide assembly for steel ball ejection;

[0019] Figure 6 A structural side view of a third specific embodiment of a guide assembly for steel ball ejection;

[0020] Figure 7 for Figure 4 Enlarged view of point A in the middle;

[0021] Figure 8 for Figure 4 Enlarged view at point B in the middle;

[0022] Figure 9 for Figure 6 Enlarged view at point C;

[0023] Figure 10 for Figure 6 Enlarged view at point D;

[0024] In the diagram: 1. Cylindrical guide slide rod, 2. Cylindrical guide slide, 3. First support arm, 4. Second support arm, 5. Rubber band slide, 6. Integrated connecting seat, 61. Ball ejection outlet, 62. First through hole, 7. Split connecting seat, 71. Left connecting seat, 72. Right connecting seat, 73. Second through hole, 101. Steel ball, 102. First anti-collision gap, 103. Second anti-collision gap. Detailed Implementation

[0025] The following will describe specific embodiments and appendices. Figure 1-10 The technical solutions in the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some preferred embodiments of this utility model, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] This utility model provides a guiding component for steel ball ejection (such as...). Figure 1As shown, the system includes four cylindrical guide slide rods 1. In practical applications, all four cylindrical guide slide rods 1 can be made of cylindrical stainless steel. Furthermore, existing machining processes can achieve very low surface roughness for the cylindrical guide slide rods 1, thereby significantly reducing the surface friction coefficient. A cylindrical guide slide 2 is formed between the four cylindrical guide slide rods 1. The outer walls of all four cylindrical guide slide rods 1 are tangent to the outer walls of the cylindrical guide slide 2. Two of the cylindrical guide slide rods 1 are located on the upper left and right sides of the cylindrical guide slide 2, and the other two are located on the lower left and right sides of the cylindrical guide slide 2. By using the four cylindrical guide slide rods 1 to limit the movement of the steel ball 101, the steel ball 101 can slide smoothly within the cylindrical guide slide 2. In actual processing, the precise positioning of the four cylindrical guide rods 1 is easily achieved, thus enabling precise machining of the cylindrical guide slides 2. The high machining accuracy of the cylindrical guide slides 2 results in a smaller gap between the steel ball 101 and the cylindrical guide rods 1, significantly reducing the runout of the steel ball 101 as it slides within the cylindrical guide slides 2. During actual processing, the diameter of the cylindrical guide slides 2 is determined based on the diameter of the steel ball 101, ensuring that the diameter of the cylindrical guide slides 2 is as equal as possible to that of the steel ball 101. This allows for precise guidance of the movement of the steel ball 101. Furthermore, because the contact between the steel ball 101 and the cylindrical guide rods 1 is point contact, the degree of friction and wear between the steel ball 101 and the cylindrical guide rods 1 is low during the sliding process. With minimal sliding bounce of the steel ball 101 and minimal wear on the cylindrical guide slide rod 1, the service life of the cylindrical guide slide rod 1 can be improved.

[0027] Based on the above embodiments, the specific implementation of the distribution of the four cylindrical guide slide rods 1 is as follows: the four cylindrical guide slide rods 1 are distributed symmetrically in pairs, both vertically and horizontally, on the outside of the cylindrical guide slide 2. Two cylindrical guide slide rods 1 spaced apart from each other are distributed in an obliquely symmetrical manner. When the steel ball 101 collides with one of the cylindrical guide slide rods 1, the obliquely symmetrical cylindrical guide slide rods 1 can effectively limit the jumping of the steel ball 101, thereby helping to maintain the stable movement of the steel ball 101.

[0028] Based on the above embodiments, the specific implementation method for fixing the four cylindrical guide slide rods 1 is as follows: The guide assembly further includes a first support arm 3 and a second support arm 4. In this specific embodiment, the first support arm 3 and the second support arm 4 are both made of aluminum alloy profiles. The first support arm 3 and the second support arm 4 are distributed in a parallel vertical position, and a rubber band slide 5 is formed between the first support arm 3 and the second support arm 4. The left and right sides of the cylindrical guide slide 2 are connected to the rubber band slide 5. In actual application, the ejector rubber band passes through the rubber band slide 5 on both sides, and the steel ball 101 is sleeved in the cylindrical guide slide 2. The high-speed movement of the ejector rubber band realizes the acceleration and pushing of the steel ball 101, and then finally realizes the high-speed ejection of the steel ball 101. Two of the cylindrical guide slide rods 2 are set at the bottom of the first support arm 3, and the other two cylindrical guide slide rods 1 are set at the bottom of the first support arm 3. Specifically, at the upper part of the second support arm 4, two open cylindrical grooves corresponding to the cylindrical guide slide rod 1 are fixedly provided at the bottom of the first support arm 3 and the upper part of the second support arm 4. The gap between the side openings of the open cylindrical grooves is smaller than the diameter of the cylindrical guide slide rod 1, thus facilitating the exposure of the side wall of the cylindrical guide slide rod 1. In actual installation, the fit between the cylindrical guide slide rod 1 and the open cylindrical groove is an interference fit, thereby ensuring the installation stability of the cylindrical guide slide rod 1. In actual application, to prevent the steel ball 101 from contacting the bottom side wall of the first support arm 3 and the upper side wall of the second support arm 4, a first anti-collision gap 102 is provided between the bottom middle position of the first support arm 3 and the upper part of the cylindrical guide slide 2, and a second anti-collision gap 103 is provided between the upper middle position of the second support arm 4 and the bottom of the cylindrical guide slide 2.

[0029] Based on the above embodiments, the specific implementation method for the mutual positioning connection of the first support arm 3 and the second support arm 4 is as follows: The guide assembly further includes an integrated connecting seat 6. The front parts of the first support arm 3 and the second support arm 4 are fixedly sleeved in the integrated connecting seat 6. In practical applications, to improve the fitting accuracy between the integrated connecting seat 6 and the first support arm 3 and the second support arm 4, a guide boss can be provided at the front part of both the first support arm 3 and the second support arm 4. A slot corresponding to the guide boss is provided on the inner side of the integrated connecting seat 6. By utilizing the precise fit between the guide boss and the slot, the precise fitting connection between the integrated connecting seat 6 and the first support arm 3 and the second support arm 4 is achieved. Furthermore, the first support arm 3 and the second support arm 4 are connected by bolts to achieve the connection with the integrated connecting seat 6. The fixed connection of the integral connecting seat 6 is specifically achieved by providing two first threaded holes on the side walls of the first support arm 3 and the second support arm 4, and providing a first through hole 62 corresponding to the first threaded hole on the side wall of the integral connecting seat 6. The bolt passes through the first through hole 62 and is tightened in the corresponding first threaded hole, thereby achieving a fixed connection between the corresponding first support arm 3 or second support arm 4 and the integral connecting seat 6. A steel ball ejection outlet 61 is provided at the front of the integral connecting seat 6. The steel ball ejection outlet 61 is coaxially distributed with the cylindrical guide slide 2, and the steel ball 101 in the cylindrical guide slide 2 can slide out from the steel ball ejection outlet 61. That is, when specifically processing the steel ball ejection outlet 61, it is necessary to make the inner diameter of the steel ball ejection outlet 61 larger than the diameter of the cylindrical guide slide 2.

[0030] Based on the above embodiments, the specific implementation method for fixing the rear of the first support arm 3 and the second support arm 4 is as follows: The guide assembly further includes a split-type connecting seat 7, which includes a left connecting seat 71 and a right connecting seat 72. The left connecting seat 71 fixes the rear left side of the first support arm 3 and the second support arm 4, and the right connecting seat 72 fixes the rear right side of the first support arm 3 and the second support arm 4. Both the left connecting seat 71 and the right connecting seat 72 are fixedly connected to the corresponding first support arm 3 and the second support arm 4 by bolt connection. Specifically, two second through holes 72 are provided at the upper and lower parts of the left connecting seat 71 and the right connecting seat 72, and second threaded holes corresponding to the second through holes are provided on the side walls of the first support arm 3 and the second support arm 4. The bolts pass through the second through holes 72 and are tightened in the corresponding second threaded holes, thereby achieving a fixed connection between the first support arm 3 or the second support arm 4 and the corresponding left connecting seat 71 or right connecting seat 72.

[0031] This utility model also provides a steel ball launching composite bow, which includes a steel ball launching guide assembly as described in the above embodiments.

[0032] In this utility model, "upper", "lower", "front", "back", "left", and "right" are all relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as limitations on the scope of protection.

[0033] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.

[0034] The preferred embodiments and examples of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments and examples. For those skilled in the art, several improvements and modifications can be made without departing from the concept of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A guide assembly for steel ball ejection, characterized by, Four cylindrical guide sliding rods are arranged outside the cylindrical guide sliding channel, and two of the cylindrical guide sliding rods are arranged on the left and right sides of the upper part of the cylindrical guide sliding channel, and the other two are arranged on the left and right sides of the lower part of the cylindrical guide sliding channel.

2. A guide assembly for steel ball launching according to claim 1, characterized in that, The four cylindrical guide sliding rods are arranged in a symmetrical manner on the outside of the cylindrical guide sliding channel.

3. The guide assembly for steel ball shooting according to claim 1, wherein The guide assembly further comprises a first support arm and a second support arm, which are arranged in a parallel manner and form a rubber band sliding channel between them, and the left and right sides of the cylindrical guide sliding channel are in communication with the rubber band sliding channel, wherein two of the cylindrical guide sliding rods are arranged at the bottom of the first support arm, and the other two are arranged at the upper part of the second support arm.

4. A guide assembly for steel ball launching according to claim 3, characterized in that, The guide assembly further comprises a one-piece connecting seat, and the front part of the first support arm and the second support arm is sleeved in the one-piece connecting seat, and a steel ball ejection outlet is arranged at the front part of the one-piece connecting seat, which is coaxially arranged with the cylindrical guide sliding channel and the steel ball in the cylindrical guide sliding channel can slide out of the steel ball ejection outlet.

5. A guide assembly for steel ball launching according to claim 4, characterized in that The first support arm and the second support arm are fixedly connected to the one-piece connecting seat by bolt connection.

6. A guide assembly for steel ball launching according to claim 4, characterized in that, The guide assembly further comprises a split connecting seat, which comprises a left connecting seat and a right connecting seat, the left connecting seat is used to fixedly connect the left side of the rear part of the first support arm and the second support arm, and the right connecting seat is used to fixedly connect the right side of the rear part of the first support arm and the second support arm.

7. A guide assembly for steel ball launching according to claim 6, characterized in that The left connecting seat and the right connecting seat are fixedly connected to the corresponding first support arm and second support arm by bolt connection.

8. A steel ball launching compound bow characterized by, The guide assembly comprises a steel ball ejection guide assembly according to any one of claims 1-7.