Slingshot

Abstract

The utility model relates to the technical field of launching devices, and provides a slingshot which comprises a slingshot frame and an elastic stretching piece, the elastic stretching piece is arranged on the slingshot frame, articles are launched by stretching the elastic stretching piece, the slingshot frame comprises a support head and a handle, the support head is of an arch-shaped structure, and the handle is arranged on the side, away from an arch-shaped opening, of the support head. A pulley assembly is arranged on the slingshot frame, the elastic stretching piece is wound on the pulley assembly, the pulley assembly is used for reducing friction force generated when the elastic stretching piece stretches, and a limiting assembly is arranged between the slingshot frame and the pulley assembly, makes contact with the elastic stretching piece and is used for limiting elastic force generated when the elastic stretching piece contracts. The sectional area of the connecting position of the handle and the support head is the smallest, and the sectional area of the handle is gradually increased in the direction away from the support head. Most of the elastic line can be arranged on the inner side of the slingshot frame on the premise that the length of the elastic line is not changed, stretching of the elastic line during shooting is not affected, and using safety and practicability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of launching devices, in particular to a slingshot. Background Art

[0002] A slingshot is generally a Y-shaped structure, with elastic parts such as rubber bands tied to the two ends of the upper side of the Y. It is used to launch projectiles and other objects, and is used as a cold weapon or toy. The accuracy of hitting the target with this slingshot mainly depends on the stability of the hands when operating the slingshot, and to a large extent depends on personal skills.

[0003] Existing slingshots generally have a simple structure, and the exposed elastic line is too long, which can easily cause damage to the user's hand when launching objects. If the overall length of the elastic line is shortened, the elasticity will be insufficient and cannot meet the usage requirements. In addition, due to the repeated rapid rebound of the elastic part, it is easy to be damaged and has poor economic efficiency.

[0004] Therefore, in view of the above problems, a slingshot is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims at the deficiencies of the prior art and develops a slingshot. The utility model can arrange most of the elastic line inside the slingshot frame without changing the length of the elastic line and does not affect the stretching of the elastic line during launching, thereby improving the safety and practicality of use.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical solutions:

[0007] A slingshot comprises a slingshot frame and an elastic stretching member, wherein the elastic stretching member is arranged on the slingshot frame, and an object is launched by stretching the elastic stretching member. The slingshot frame comprises a frame head and a handle, wherein the frame head is arranged in a bow-shaped structure, and the handle is arranged on a side of the frame head away from the bow-shaped opening. A pulley assembly is arranged on the slingshot frame, and the elastic stretching member is wound around the pulley assembly. The pulley assembly is used to reduce the friction force when the elastic stretching member is stretched. A limit assembly is arranged between the slingshot frame and the pulley assembly, and the limit assembly is in contact with the elastic stretching member to limit the elastic force when the elastic stretching member is contracted.

[0008] Preferably, the slingshot frame is Y-shaped as a whole, and the cross-sectional area of ​​the connection position between the handle and the bracket head is the smallest, and the cross-sectional area of ​​the handle gradually increases in the direction away from the bracket head.

[0009] Preferably, the pulley assembly includes a plurality of pulleys, all of which are rotatably arranged on the slingshot frame, wherein two pulleys are respectively arranged at two ends of the bow-shaped structure of the bracket head, and the axes of the two pulleys are in the same straight line.

[0010] Preferably, a plurality of pulleys are symmetrically arranged on the slingshot frame about the center line of the slingshot frame, and the pulleys are all arranged to be concave along their circumferential surfaces.

[0011] Preferably, the limiting assembly includes two spring sheets, which are respectively arranged at the two ends of the bow-shaped structure of the bracket head, one end of the spring sheet is arranged on the slingshot frame, the other end of the spring sheet is arranged with an arc surface, and an elastic stretching piece is passed between the arc surface and the pulleys at both ends of the bracket head, and the spring sheet and the pulley cooperate to extrude the elastic stretching piece.

[0012] Preferably, the limiting assembly includes two wedge blocks and a spring rope, the two wedge blocks are respectively arranged at the two ends of the bow-shaped structure of the bracket head, and the narrow end of the wedge block is inserted between the pulley on the bracket head and the inner wall of the bracket head, the thickness of the wide end of the wedge block is greater than the distance between the pulley on the bracket head and the inner wall of the bracket head, the two ends of the spring rope are respectively connected to the narrow ends of the two wedge blocks, the middle part of the spring rope is arranged on the slingshot frame, and the spring rope is in a stretched state.

[0013] Preferably, an arc groove is provided on one side of the wedge block close to the pulley, and the length direction of the arc groove is perpendicular to the axis of the pulley in contact with the wedge block.

[0014] The effects provided in the utility model content are only the effects of the embodiments, not all the effects of the utility model. The above technical solution has the following advantages:

[0015] 1. The utility model provides a pulley assembly, which is rotatably arranged on the slingshot frame, and the elastic stretching member is wound around the pulley assembly, so that most of the elastic stretching member is hidden inside the slingshot frame, and when the elastic stretching member is stretched and the projectile and other objects are fired, the elastic stretching member is prevented from being exposed for a long time to cause harm to the user's body, thereby improving the safety of use;

[0016] 2. The utility model provides a limit assembly, which can cooperate with the pulley assembly to clamp the elastic stretching piece passing through the middle. After the elastic stretching piece is stretched, its diameter is reduced and it can pass between the limit assembly and the pulley assembly. When the elastic stretching piece rebounds, its diameter becomes larger, so that the limit assembly and the pulley assembly can clamp it. At the same time, under the joint action of friction force and the rebound force of the elastic stretching piece, the elastic stretching piece can slowly return to its initial state, avoiding damage to the elastic stretching piece due to repeated strong rebound, extending its service life, and improving its economy and practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the utility model without the elastic stretching member;

[0020] Figure 3 It is a front view structural schematic diagram of an embodiment of the utility model without the elastic stretching member;

[0021] Figure 4 It is a schematic diagram of the top view of the structure of the embodiment of the utility model without the elastic stretching member;

[0022] Figure 5 It is a structural schematic diagram of a spring sheet according to an embodiment of the utility model;

[0023] Figure 6 This is a schematic structural diagram of a wedge block and a spring rope according to an embodiment of the utility model.

[0024] In the figure, 1, slingshot frame; 2, elastic stretching member; 3, pulley assembly; 4, limit assembly; 11, bracket head; 12, handle; 31, pulley; 41, spring sheet; 42, wedge block; 43, spring rope. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-Figure 5 As shown, the utility model provides a technical solution:

[0027] A slingshot comprises a slingshot frame 1 and an elastic stretching member 2, wherein the elastic stretching member 2 is arranged on the slingshot frame 1, and the elastic stretching member is stretched to launch an object through the resilience of the elastic stretching member, wherein the elastic stretching member is an elastic member such as a round rubber band, and the slingshot frame 1 comprises a bracket head 11 and a handle 12, wherein the bracket head 11 is arranged in a bow-shaped structure, and the handle 12 is arranged on a side of the bracket head 11 away from the bow-shaped opening, a pulley assembly 3 is arranged on the slingshot frame 1, and the elastic stretching member 2 is wound around the pulley assembly 3, and the pulley assembly 3 is used to reduce the friction force of the elastic stretching member 2 when it is stretched, and a limit assembly 4 is arranged between the slingshot frame 1 and the pulley assembly 3, and the limit assembly 4 is in contact with the elastic stretching member 2 and is used to limit the elastic force of the elastic stretching member 2 when it is contracted.

[0028] In this embodiment, the slingshot frame 1 is Y-shaped as a whole, and the cross-sectional area of ​​the connection position between the handle 12 and the bracket head 11 is the smallest, and the cross-sectional area of ​​the handle 12 gradually increases in the direction away from the bracket head 11, so as to conform to the ergonomic design, so that the cross-sectional area of ​​the handle 12 at the base of the thumb is the smallest when it contacts the user's hand, which is convenient for holding. The shape of the handle 12 with one end wide and the other end narrow can also prevent the slingshot from falling out of the hand as a whole during use, thereby improving the safety of use.

[0029] In this embodiment, the pulley assembly 3 includes a plurality of pulleys 31. Specifically, five pulleys 31 are provided in this embodiment. The pulleys 31 are all rotatably provided on the slingshot frame 1 through connecting screws, wherein two pulleys 31 are respectively provided at the two ends of the bow structure of the bracket head 11, and the axes of the two pulleys 31 are in the same straight line, so that the pulling direction of the round rubber band can be consistent when the device is used, thereby improving the stability of use.

[0030] In this embodiment, five pulleys 31 are symmetrically arranged on the slingshot frame 1 about the center line of the slingshot frame 1. Except for the two pulleys at the two ends of the bracket head 11, the midpoints of the other three pulleys are arranged on the inner side of the handle 12 in a right isosceles triangle with respect to the center line of the slingshot frame 1 to avoid affecting the grip, and the pulley 31 is provided with a concave groove along its circumferential surface for clamping a round rubber band to prevent the round rubber band from falling off the pulley 31 when the pulley 31 rotates, thereby improving stability during use.

[0031] In this embodiment, the axes of the pulleys on the handle 12 are parallel to each other and perpendicular to the axes of the pulleys on the bracket head 11 .

[0032] In another embodiment, a tightening sleeve is further included, which is arranged on the elastic stretching member 2 sleeved on the intermediate pulley and is used to clamp the elastic stretching member 2 on the intermediate pulley, further preventing the elastic stretching member 2 on the intermediate pulley from falling off and improving stability.

[0033] In this embodiment, the portion of the round rubber band located outside the slingshot frame 1 is connected to an inelastic braided rope for hooking a fish dart. The reverse hook on the fish dart is hooked on the braided rope, and then the round rubber band is stretched to launch the fish dart, thereby achieving the purpose of shooting fish, thereby increasing the scope of use of the device and having good practicality.

[0034] In another embodiment, the portion of the round rubber band located outside the slingshot frame 1 can be connected to a leather bag for placing a projectile. After the leather bag wraps the projectile, the round rubber band is stretched to launch the projectile.

[0035] In this embodiment, the limiting component 4 includes two spring sheets 41, which are respectively arranged at the two ends of the bow-shaped structure of the bracket head 11, one end of the spring sheet 41 is fixed to the slingshot frame 1 by a small bolt and nut assembly, and the other end of the spring sheet 41 is provided with an arc surface, and the arc surface faces the pulleys 31 at both ends of the bracket head 11, and an elastic stretching member 2 is passed between the arc surface and the pulleys 31 at both ends of the bracket head 11. The spring sheet 41 is made of metal and has a certain deformation elasticity. The spring sheet 41 cooperates with the pulley 31 to extrude the elastic stretching member 2, but does not affect the stretching of the elastic stretching member 2, that is, when the round rubber band is stretched, its diameter becomes smaller, and cooperates with the pulley 31 to squeeze the elastic stretching member 2. The rotation of the wheel 31, the elastic force and friction force of the spring sheet 41 have no effect on the stretching of the round rubber band, and the round rubber band can be stretched normally. After the round rubber band rebounds, the diameter of the round rubber band becomes larger, and at this time the distance between the spring sheet 41 and the pulley 31 is still maintained at the distance when the round rubber band has a small diameter, so that the round rubber band cannot immediately return to its initial state. The round rubber band on the outside of the slingshot frame 1 is in a relaxed state, and the round rubber band on the inside is still in a stretched state, that is, under the combined effect of the rebound force of the round rubber band on the inside of the slingshot frame 1, the elastic force of the spring sheet 41 and the friction force between the round rubber band and the spring sheet 41, the round rubber band can slowly return to its initial stress-free state, thereby reducing damage to the round rubber band and increasing its service life.

[0036] like Figure 6 As shown, in another embodiment, the limiting assembly includes two wedge blocks 42 and a spring rope 43, which play the same role as the spring sheet 41. The two wedge blocks 42 can be made of wooden materials and are respectively arranged at the two ends of the arched structure of the bracket head 11, and the narrow end of the wedge block 42 is inserted between the pulley on the bracket head 11 and the inner wall of the bracket head 11. The thickness of the wide end of the wedge block 42 is greater than the distance between the pulley on the bracket head 11 and the inner wall of the bracket head 11, so that the wedge block 42 can be stuck between the pulley on the bracket head 11 and the inner wall of the bracket head 11, and the two ends of the spring rope 43 are respectively connected to the narrow ends of the two wedge blocks 42, and the middle part of the spring rope 43 is arranged on the slingshot frame 1, preferably, it is sleeved on the bottom of the middle roller and does not affect the rotation of the middle roller, and the spring rope 43 is in a stretched state to always give the two wedge blocks 42 a certain pulling force to prevent the wedge blocks 42 from falling when the round rubber band is stretched, thereby improving practicality.

[0037] In another embodiment, an arc groove is provided on one surface of the wedge block 42 close to the pulley 31, and the length direction of the arc groove is perpendicular to the axis of the pulley 31 in contact therewith, and a round rubber band passes between the arc groove and the pulley 31. When the round rubber band is stretched, the diameter of the round rubber band decreases. At this time, due to the continuous stretching of the wedge block 42 by the spring rope 43, the distance between the arc groove and the pulley 31 is further reduced, so that the round rubber band is continuously squeezed. After the round rubber band on the outside of the slingshot frame 1 rebounds, it returns to a relaxed state, and the round rubber band on the inside of the slingshot frame 1 is still in a stretched state. Under the combined effect of the rebound force of the round rubber band on the inside of the slingshot frame 1, the friction force between the wedge block 42 and the round rubber band, and the rotation of the pulley 31, the round rubber band slowly returns to its initial stress-free state. The arrangement of the wedge block 42 and the spring rope 43 facilitates replacement and disassembly, and has good practicality and economy.

[0038] Working principle: First, one end of the elastic stretching piece 2 is put on the middle pulley, and then the two ends of the elastic stretching piece 2 pass through the pulley on the bottom side and upwardly pass through the limit component 4 and the pulleys at both ends of the bracket head 11; then, the part of the elastic stretching piece 2 located on the outside of the slingshot frame 1 is connected to a leather bag to launch projectiles or a braided rope to launch darts according to the needs of the user; when launching, one hand holds the handle 12, and the other hand stretches the elastic stretching piece 2 on the outside of the slingshot frame 1. Due to the elasticity of the elastic stretching piece 2, the elastic stretching piece 2 is stretched as a whole. After launching, due to the force between the limit component 4 and the pulleys at both ends of the bracket head 11, the elastic stretching piece 2 on the outside of the slingshot frame 1 is in a relaxed state, while the elastic stretching piece 2 on the inside of the slingshot frame 1 is in a relaxed state. In a stretched state; then, under the combined effect of the rebound force of the elastic stretching member 2 inside the slingshot frame 1, the friction force between the limit assembly 4 and the elastic stretching member 2, and the rotation of the pulleys at both ends of the bracket head 11, the elastic stretching member 2 can slowly recover to its initial unstressed state; since most of the elastic stretching member 2 is located inside the slingshot frame 1, after the elastic stretching member 2 is stretched, the rebound force of the elastic stretching member 2 is large, the distance of the ejected object is farther, and its rebound path is more direct than the rebound path of the traditional slingshot, and the problem of the elastic stretching member 2 rebounding and swinging is not easy to occur, reducing the possible damage to the user's hands, and being able to slowly recover to the initial state, avoiding damage to the elastic stretching member 2 as a whole after multiple rapid rebounds, thereby improving economy and practicality.

[0039] The parts not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A slingshot, comprising a slingshot frame (1) and an elastic stretching member (2), wherein the elastic stretching member (2) is arranged on the slingshot frame (1), and is characterized in that: The slingshot frame (1) comprises a frame head (11) and a handle (12), wherein the frame head (11) is arranged in a bow-shaped structure, and the handle (12) is arranged on a side of the frame head (11) away from the bow-shaped opening. A pulley assembly (3) is arranged on the slingshot frame (1), and an elastic stretching member (2) is wound around the pulley assembly (3). The pulley assembly (3) is used to reduce the friction force of the elastic stretching member (2) when it is stretched. A limit assembly (4) is arranged between the slingshot frame (1) and the pulley assembly (3), and the limit assembly (4) is in contact with the elastic stretching member (2) and is used to limit the elastic force of the elastic stretching member (2) when it is contracted.

2. A slingshot according to claim 1, characterized in that: The slingshot frame (1) is Y-shaped as a whole, and the cross-sectional area of ​​the connection position between the handle (12) and the bracket head (11) is the smallest, and the cross-sectional area of ​​the handle (12) gradually increases in a direction away from the bracket head (11).

3. A slingshot according to claim 2, characterized in that: The pulley assembly (3) comprises a plurality of pulleys (31) which are all rotatably arranged on the slingshot frame (1), wherein two pulleys (31) are respectively arranged at two ends of the bow-shaped structure of the support head (11), and the axes of the two pulleys (31) are in the same straight line.

4. A slingshot according to claim 3, characterized in that: A plurality of pulleys (31) are symmetrically arranged on the slingshot frame (1) about the center line of the slingshot frame (1), and each pulley (31) is provided with a concave groove along its circumferential surface.

5. A slingshot according to claim 4, characterized in that: The limit assembly (4) comprises two spring sheets (41), the two spring sheets (41) are respectively arranged at two ends of the bow-shaped structure of the bracket head (11), one end of the spring sheet (41) is arranged on the slingshot frame (1), the other end of the spring sheet (41) is provided with an arc surface, and an elastic stretching member (2) is inserted between the arc surface and the pulleys (31) at both ends of the bracket head (11), and the spring sheet (41) cooperates with the pulley (31) to squeeze the elastic stretching member (2).

6. A slingshot according to claim 4, characterized in that: The limiting assembly comprises two wedge blocks (42) and a spring rope (43), the two wedge blocks (42) are respectively arranged at two ends of the arch structure of the bracket head (11), and the narrow end of the wedge block (42) is inserted between the pulley on the bracket head (11) and the inner wall of the bracket head (11), the thickness of the wide end of the wedge block (42) is greater than the distance between the pulley on the bracket head (11) and the inner wall of the bracket head (11), the two ends of the spring rope (43) are respectively connected to the narrow ends of the two wedge blocks (42), the middle part of the spring rope (43) is arranged on the slingshot frame (1), and the spring rope (43) is in a stretched state.

7. A slingshot according to claim 6, characterized in that: An arc groove is formed on one side of the wedge block (42) close to the pulley (31), and the length direction of the arc groove is perpendicular to the axis of the pulley (31) in contact with the wedge block (42).

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