A new pulley catapult

Abstract

The utility model provides a novel pulley catapult belongs to catapult technical field. The catapult includes holding structure and ejecting structure. Holding structure includes holding handle and support block, support block is fixed in the top of holding handle, and the both sides of support block are fixed with support arm, the ejecting structure includes connecting block, spring member and elastic band, connecting block with support arm is fixed, spring member is installed fixedly on connecting block, elastic band is wound on spring member, and the ejecting portion is fixed on elastic band. The utility model is more neat and simple as a whole, can form greater elasticity when pulling, and is more labor-saving and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of slingshot technology, and more specifically, to a novel pulley slingshot. Background Technology

[0002] A slingshot is a type of cold weapon or game tool. A slingshot generally consists of three parts: a frame, a rubber band, and a leather pouch. It is typically made from tree branches and is shaped like a "Y". Rubber bands are attached to both ends, and a leather pouch containing the projectile is attached to the middle of the rubber bands. The power of a slingshot depends on the tension of the rubber band and its rebound speed. Greater tension allows for heavier projectiles, and faster rebound speed provides a greater initial velocity. Heavier projectiles and higher initial velocities result in greater power. Slingshots can be classified into two types based on their firing mechanism: limb slingshots and rubber band slingshots.

[0003] The pulley slingshot is a new type of slingshot structure that has emerged in recent years. Currently, existing pulley slingshots have pulleys installed on both sides of the slingshot frame, with the elastic band contacting the pulleys on both sides. Pulling the elastic band launches the slingshot. The pulleys serve to adjust the elastic band's position. After the elastic band is launched, it hangs freely under the influence of gravity. The elastic band easily gets tangled in the slingshot frame, and when no force is applied, it easily gets tangled with external objects, making storage inconvenient and cumbersome. Therefore, it is necessary to propose a new type of pulley slingshot to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a novel pulley slingshot, aiming to improve upon the existing pulley slingshots where pulleys are installed on both sides of the slingshot frame, and the elastic band contacts both sides of the pulleys. The elastic band is then pulled to launch the slingshot, with the pulleys acting as deflectors. After the elastic band is launched, it hangs freely under gravity. The elastic band easily gets tangled in the slingshot frame, and when no force is applied, it easily gets tangled with external objects, leading to inconvenient and cumbersome storage.

[0005] This utility model is implemented as follows: A novel pulley slingshot includes a holding structure and a launching structure mounted on the holding structure. The holding structure includes a grip and a support block. The support block is fixed to the top of the grip and has support arms fixed to both sides. The ejection structure includes a connecting block, an ejector component, and an elastic band. The connecting block is fixed to the support arm, the ejector component is mounted and fixed on the connecting block, the elastic band is wrapped around the ejector component, and an ejection part is fixed on the elastic band.

[0006] In one embodiment of the present invention, the ejector includes a first wheel frame and a second wheel frame, the first wheel frame and the second wheel frame being fixed on both sides of the connecting block respectively, a first guide wheel being rotatably connected to the first wheel frame, and a second guide wheel being rotatably connected to the second wheel frame.

[0007] In one embodiment of this utility model, the two ends of the elastic band are fixedly connected to the connecting blocks on both sides, and then the elastic band is wound around the first guide wheel and the second guide wheel in sequence, and finally the elastic band converges between the two connecting blocks.

[0008] In one embodiment of this utility model, the grip bar is arc-shaped and has a first protective layer and a second protective layer fixed on both sides respectively.

[0009] In one embodiment of this utility model, a support is fixed to the bottom of the grip bar, the support has a through hole inside, and a protective pad is fixed to the bottom of the support.

[0010] In one embodiment of this utility model, a protrusion is fixed on one side of the connecting block, and a limiting groove is formed on the protrusion.

[0011] The beneficial effects of this utility model are: This invention provides a novel pulley slingshot through the above design. In use, the user holds the handle, and the elastic band wraps around the first and second guide wheels. This prevents the elastic band from freely hanging and becoming entangled in the slingshot due to gravity, resulting in a neater overall appearance and easier storage. This application symmetrically arranges two sets of guide wheels, namely the first guide wheel and the second guide wheel, on both sides of the slingshot frame. The elastic band extends around the first guide wheel and the second guide wheel in sequence. The two guide wheels change the direction of the elastic band twice. In this way, a single elastic band with a projectile mounted on it generates twice the elastic force of an existing single elastic band when stretched for the same distance, which is more labor-saving, although the pulling distance is longer. As a result, the work done by this slingshot on the projectile is half the force required to do the same work as an existing single-guide-wheel slingshot, thus saving more effort. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1This is a schematic diagram of the slingshot structure from a first-view perspective provided by an embodiment of this utility model; Figure 2 A schematic diagram of the second-view structure of the slingshot provided for an embodiment of this utility model; Figure 3 A schematic diagram of the slingshot third-view structure provided for an embodiment of this utility model; Figure 4 A force analysis diagram of the elastic band in the stored state provided for the embodiments of this utility model.

[0014] In the diagram: 100, holding structure; 110, grip; 111, first protective layer; 112, second protective layer; 120, support block; 130, support arm; 140, support; 141, pad; 200, ejection structure; 210, connecting block; 220, ejection component; 221, first wheel frame; 222, first guide wheel; 223, second wheel frame; 224, second guide wheel; 230, elastic band; 231, ejection part; 240, protrusion; 241, limiting groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] Example Please see Figures 1-4 This utility model provides a technical solution: a novel pulley slingshot, including a holding structure 100 and a launching structure 200. The holding structure 100 includes a grip 110 and a support block 120. The support block 120 is fixed to the top of the grip 110, and support arms 130 are fixed on both sides of the support block 120.

[0017] The grip 110 is arc-shaped and has a first protective layer 111 and a second protective layer 112 fixed on both sides. Both the first protective layer 111 and the second protective layer 112 are flexible rubber layers, which increases the friction between the grip and the hand, making the grip more stable and providing some protection to the hand. A support 140 is fixed to the bottom of the grip 110. The support 140 has a through hole inside and a pad 141 is fixed to the bottom of the support 140. The through hole in the support 140 reduces the overall weight, and the support 140 is designed for easy placement and display.

[0018] Please see Figures 1-4 The ejection structure 200 includes a connecting block 210, an ejector component 220, and an elastic band 230. The connecting block 210 is fixed to the support arm 130. The ejector component 220 is installed and fixed on the connecting block 210. The elastic band 230 is wrapped around the ejector component 220. An ejection part 231 is fixed on the elastic band 230.

[0019] The ejector component 220 includes a first wheel frame 221 and a second wheel frame 223, which are respectively fixed to both sides of the connecting block 210. A first guide wheel 222 is rotatably connected to the first wheel frame 221, and a second guide wheel 224 is rotatably connected to the second wheel frame 223. The two ends of the elastic band 230 are respectively fixedly connected to the connecting blocks 210 on both sides. Then, the elastic band 230 extends around the first guide wheel 222 and the second guide wheel 224 in sequence. The two guide wheels cause the elastic band 230 to change direction twice. Finally, the elastic band 230 converges between the two connecting blocks 210. The elastic band 230 is wrapped around the first guide wheel 222 and the second guide wheel 224, which can prevent the elastic band 230 from falling naturally under the action of gravity, making the organization neater and easier to store. By symmetrically arranging two sets of guide wheels on both sides of the connecting block 210, namely the first guide wheel 222 and the second guide wheel 224, both guide wheels are fixed and are called fixed pulleys. However, combined with the elastic band 230, which is stretchable and elastic, the two fixed guide wheels and the elastic band 230 can form a special "pulley group". As we all know, a pulley group consists of one fixed pulley and one movable pulley. It is usually paired with a non-stretchable rope to save effort. Its essence is that one pulley is fixed and the other pulley is movable. The rope is stationary relative to the movable pulley. The two fixed pulleys in this application are equivalent to two pulleys that are stationary, but the elastic rope (i.e., the elastic band 230) is moving relative to the fixed pulley. Therefore, both of them generate relative motion, so effort can also be saved. This single elastic band with a catapult generates twice the elastic force of an existing single elastic band when stretched for the same distance, requiring less effort. However, the pulling distance is longer. Consequently, the work done by this slingshot in launching the projectile is half the force required to do the same work as an existing single-guide wheel slingshot, thus saving more effort.

[0020] A protrusion 240 is fixed on one side of the connecting block 210, and a limiting groove 241 is formed on the protrusion 240. The forming of the limiting groove 241 can limit the elastic band 230 by pulling it through the ejection part 231, thereby increasing the stability of the ejection.

[0021] Specifically, the working principle of the slingshot is as follows: When in use, hold the handle 110, and the elastic band 230 is wrapped around the first guide wheel 222 and the second guide wheel 224. In this way, the elastic band 230 will not fall freely and get tangled on the slingshot due to gravity, making the whole thing neater, simpler and easier to store. At the same time, when the elastic band 230 is pulled through the ejection part 231, multiple elastic units will be formed, which can generate greater elasticity when pulled, making it easier to pull and more convenient to use.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel pulley slingshot, comprising a holding structure (100) and a launching structure (200) mounted on the holding structure (100), characterized in that, The holding structure (100) includes a grip (110) and a support block (120). The support block (120) is fixed to the top of the grip (110), and support arms (130) are fixed to both sides of the support block (120). The ejection structure (200) includes a connecting block (210), an ejector (220), and an elastic band (230). The connecting block (210) is fixed to the support arm (130). The ejector (220) is mounted and fixed on the connecting block (210). The elastic band (230) is wrapped around the ejector (220). An ejection part (231) is fixed on the elastic band (230).

2. The novel pulley slingshot according to claim 1, characterized in that, The ejector (220) includes a first wheel frame (221) and a second wheel frame (223). The first wheel frame (221) and the second wheel frame (223) are respectively fixed on both sides of the connecting block (210). A first guide wheel (222) is rotatably connected to the first wheel frame (221), and a second guide wheel (224) is rotatably connected to the second wheel frame (223).

3. A novel pulley slingshot according to claim 2, characterized in that, The two ends of the elastic band (230) are fixedly connected to the connecting blocks (210) on both sides respectively. Then the elastic band (230) is wound around the first guide wheel (222) and the second guide wheel (224) in sequence. Finally, the elastic band (230) converges between the two connecting blocks (210).

4. A novel pulley slingshot according to claim 1, characterized in that, The grip (110) is arc-shaped and has a first protective layer (111) and a second protective layer (112) fixed on both sides respectively.

5. A novel pulley slingshot according to claim 1, characterized in that, The bottom of the grip (110) is fixed with a support (140), the support (140) has a through hole inside, and the bottom of the support (140) is fixed with a pad (141).

6. A novel pulley slingshot according to claim 1, characterized in that, A protrusion (240) is fixed on one side of the connecting block (210), and a limiting groove (241) is formed on the protrusion (240).

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