Bow and crossbow

Abstract

The bow and crossbow comprises a shooting mechanism for shooting marbles, the shooting mechanism comprises a steel column body for storing the marbles, and a bow frame mechanism is assembled and connected to the steel column body in a sliding mode. An aiming mechanism is mounted at the end part of the steel column main body; the bow rack mechanism comprises bow arm structures and a bow rack structure fixedly mounted between the bow arm structures; the bow frame structure comprises a bow end frame part, oblique arm parts are integrally formed at the two ends of the bow end frame part respectively, and the bow arm structure is fixedly connected to the oblique arm parts. A main support part of a bow frame structure is integrally formed on the inner side of the bow end frame part, and the main support part is integrally formed on the bow end frame part through a plurality of connecting parts. The inner sides of the main support part and the bow end frame part are provided with rolling wheels which abut against and roll on the steel column body. The bow frame of the bow and the crossbow is more stable in structure, and the bow and the crossbow can be kept high in accuracy for a long time.

Description

Technical Field

[0001] This utility model belongs to the field of crossbow technology, and in particular relates to a crossbow. Background Technology

[0002] A crossbow is a type of exercise equipment that converts elastic potential energy into kinetic energy, and can be used to train arm strength. The working principle of a crossbow is as follows: a ball, such as a toy steel ball or an arrow shaft, is launched and struck by the elastic bowstring on the crossbow.

[0003] The main structure of a crossbow includes a bow frame and a steel column for launching steel balls. During firing, steel balls are injected into the steel column, the bowstring is pulled, and the elastic potential energy of the bowstring propels the steel balls out. Because crossbows offer excellent training benefits, many existing technologies based on crossbows have been disclosed. For example, Chinese patent application number CN202222459855.3 discloses a composite bow shooting steel column assistant, including a steel column body with a launching groove and a ball groove arranged parallel to each other. The bowstring of the composite bow launches the ball in the launching groove, and the ball groove is used to fill the ball. A release mechanism and a string-hanging mechanism are hinged to one end of the steel column body. The release mechanism and string-hanging mechanism work together, with one end of the release mechanism engaging with the string-hanging mechanism. One side of the string-hanging mechanism is connected to the release mechanism via a spring located on the outside of the steel column body. A string groove is formed on the other side of the string-hanging mechanism to hold the bowstring of the composite bow.

[0004] The ball is fired by means of the steel column body disclosed in the above patent, as well as the launching groove, ball groove, releasing mechanism and string hanging mechanism opened on the steel column body.

[0005] Based on this, most existing crossbows are improvements on the structure disclosed in the above patents, such as adding a bow frame that is easier to hold.

[0006] However, since the operation of a crossbow relies on pulling the bowstring by hand, if the structure of the bow frame is not stable enough during frequent pulling, the bow frame is prone to deformation during prolonged pulling. The deformed bow frame not only causes the direction of the bowstring's striking force to deviate after pulling and releasing, but also makes it difficult for the fired projectile to hit the target position, seriously affecting the accuracy of the crossbow.

[0007] Therefore, existing technologies use a harder iron structure as the bow frame, but this significantly increases the weight of the bow and greatly reduces the ease of operation. Reducing the thickness of the bow's material also has obvious drawbacks; thinner metal materials have lower structural stability, which manifests as a huge tension force when the bowstring is drawn, causing elastic deformation of the bow frame and resulting in insufficient firing accuracy.

[0008] Therefore, designing a crossbow with high structural stability and high accuracy is crucial for improving crossbow performance. Utility Model Content

[0009] Based on the above background, the purpose of this utility model is to provide a crossbow.

[0010] To achieve the above objectives, the present invention adopts the following technical solution:

[0011] A crossbow includes a launching mechanism for launching projectiles, the launching structure including a steel column body for storing projectiles, characterized in that a bow frame mechanism is slidably connected to the steel column body; and an aiming mechanism is installed at the end of the steel column body.

[0012] The bow frame mechanism includes a bow arm structure and a bow frame structure fixedly installed between the bow arm structures;

[0013] The bow frame structure includes a bow end frame, with inclined arms integrally formed at both ends of the bow end frame, and the bow arm structure is fixedly connected to the inclined arms.

[0014] The main support part of the bow frame structure is integrally formed on the inner side of the bow end frame part, and the main support part is integrally formed on the bow end frame part through several connecting parts;

[0015] The inner sides of the main support section and the bow end frame section are equipped with rollers that roll against the steel column body.

[0016] Preferably, the bow arm structure includes a pair of arc-shaped bow arms arranged symmetrically at the top and bottom;

[0017] The front and rear sides of the arc-shaped bow arm are respectively fixedly connected to the bow frame structure;

[0018] The rollers are rotatably connected between the bow end frame and the main support.

[0019] Preferably, the top of the main support portion is integrally formed on the inclined arm portion through a vertically arranged first connecting portion;

[0020] The upper left end of the main support part is integrally formed on the bow end frame part through a second connecting part that is inclined upward;

[0021] The lower left end of the main support is integrally formed on the bow end frame via a third connecting part that is inclined downwards.

[0022] Preferably, the arc-shaped bow arm is provided with a support and buffer structure.

[0023] Preferably, the support and buffer structure includes an elastic pad supported between two arc-shaped bow arms, and the elastic pad has slots on both sides, which engage with the inner sidewalls of the arc-shaped bow arms.

[0024] The support and buffer structure also includes several columnar support pads fixedly connected to the inclined arm; the columnar support pads are supported at the bottom of the arc-shaped bow arm.

[0025] Preferably, a hanging wheel is rotatably connected between the inner ends of the arc-shaped bow arms;

[0026] The crossbow also includes a bowstring structure, which includes a tension bowstring suspended between the string reels; the bowstring structure also includes a pair of string reels fixed between the curved bow arms;

[0027] A string hanger corresponding to the string hanger is fixedly connected to the arc-shaped bow arm.

[0028] Preferably, a base is fixedly connected to the bottom of the main support, a string rod is fixedly connected between the bases, and a string hook is fixedly connected to the string rod; the center part of the string is pulled on the string hook, and the string is misaligned with the bowstring by the string hook limiting the position.

[0029] Preferably, a handle is fixedly connected to the bottom of the base;

[0030] Handle connecting arms are fixedly connected to the front and rear ends of the handle, and the handle connecting arms are fixed to the slanted arm.

[0031] Preferably, the aiming mechanism includes an aiming seat sleeved at the end of the steel column body, and a laser aiming device is mounted on the top of the aiming seat;

[0032] The aiming mount is fitted with a laser indicator rod corresponding to the aiming device, and a laser indicator bead is installed at the end of the laser indicator rod;

[0033] During aiming, the laser beam emitted by the laser sight is adjusted to coincide with the laser beam emitted by the laser indicator bead on the target.

[0034] Preferably, the aiming mount has a cavity for inserting a laser pointer rod, and the cavity is connected to the emission cavity of the steel column body;

[0035] The top of the aiming mount is fixedly connected to a mounting bracket, and the bottom of the laser aiming device is fixedly connected to a clip that engages with the mounting bracket.

[0036] This utility model has the following beneficial effects:

[0037] 1. The bow frame structure includes a bow end frame, which is bow-shaped with a widened bow head integrally formed at both its top and bottom. Therefore, the bow end frame serves as the main beam frame structure to prevent deformation of the bow frame structure. Furthermore, each end of the bow end frame has an integrally formed slanted arm, which matches the curvature of the following arc-shaped bow arm (the bow arm structure is fixedly connected to the slanted arm), thus fixing the main body of the arc-shaped bow arm.

[0038] Therefore, the inclined arm protects the curved bow arm, preventing it from bending excessively and becoming unable to recover its deformation.

[0039] 2. A main support section with an integrally formed bow frame structure is formed on the inner side of the bow end frame section, and the main support section is integrally formed on the bow end frame section through several connecting parts. The top of the main support section is integrally formed on the inclined arm section through a vertically set first connecting part;

[0040] The upper left end of the main support unit is integrally formed on the bow end frame unit via a second connecting part that is inclined upwards; the lower left end of the main support unit is integrally formed on the bow end frame unit via a third connecting part that is inclined downwards.

[0041] Under the aforementioned connection, the main support part, which serves as the main structure, is first integrally attached to the bow end frame part through the first connecting part, the second connecting part, and the third connecting part. Several through-hole structures are formed between the first connecting part, the second connecting part, and the third connecting part, which serves two purposes: firstly, to reduce material usage, and secondly, to reduce weight.

[0042] With the first to third connecting parts arranged radially, the structural strength of the bow end frame and the main support is significantly improved. That is, once the entire bow frame is under stress, the bow end frame can distribute the stress to the main support, thereby making the entire bow frame structure less prone to deformation after being subjected to greater force, ensuring the stability and accuracy of the bow and crossbow structure.

[0043] 3. The aiming mechanism includes an aiming seat fitted onto the end of the steel column body. A laser sight is mounted on the top of the aiming seat, and a laser indicator rod corresponding to the sight is fitted inside the aiming seat. A laser indicator bead is installed at the end of the laser indicator rod. The laser indicator bead is a conventional laser-generating bead disclosed in the prior art, and its working power supply installed inside the laser indicator rod automatically illuminates.

[0044] During aiming, the laser beam emitted by the laser sight is aligned with the beam emitted by the laser indicator bead on the target. This method enables visual operation, facilitating crossbow aiming. It overcomes the limitation of traditional crossbows, which only have a single laser sight and cannot be aimed visually.

[0045] The aiming method disclosed in this utility model enables multiple shots to be fired simultaneously when the laser sight and the laser pointer rod coincide. This effectively avoids the drawback of needing to frequently aim during the firing of traditional crossbows. Attached Figure Description

[0046] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0048] Figure 2 This is a schematic diagram of the aiming mechanism in an embodiment of the present invention;

[0049] Figure 3 This is an embodiment of the present utility model. Figure 1 A structural diagram from another perspective;

[0050] Figure 4 This is a schematic diagram of the bow frame structure in an embodiment of the present utility model;

[0051] Figure 5 This is a schematic diagram of the supporting buffer structure in an embodiment of the present invention;

[0052] Figure 6 This is a schematic diagram of the bow frame mechanism in an embodiment of the present utility model;

[0053] Figure 7 As an embodiment of this utility model Figure 2 A structural diagram from another perspective.

[0054] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0055] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0056] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0057] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0058] Example 1

[0059] like Figure 1-7 As shown, a crossbow includes a launching mechanism 2 for launching projectiles. The launching mechanism 2 is a conventional projectile launching structure found in prior art crossbows, specifically identical to existing launching mechanisms 2. The launching mechanism includes a steel column body for storing projectiles (the steel column body has a projectile storage slot and a launching slot). Those skilled in the art can identify these features by consulting technical manuals and dictionaries (such as the composite bow shooting steel column assistant disclosed in Chinese patent application number 202222459855.3).

[0060] Because the existing bow frame structure is not very stable, it is prone to deformation after a period of use. Therefore, this invention improves the bow frame based on the existing bow firing mechanism 2. The specific improved structure is as follows:

[0061] A bow frame mechanism 3 is slidably connected to the main body of the steel column. Specifically, the bow frame mechanism 3 includes a bow arm structure and a bow frame structure fixedly installed between the bow arm structures.

[0062] Specifically, the bow arm structure includes a pair of symmetrically arranged arc-shaped bow arms 31; a bow frame structure 33 is fixedly connected between the front and rear sides of the arc-shaped bow arms 31. By using a double-layered identical bow frame structure 33, the overall structural strength is increased, and even if one side of the bow frame structure 33 deforms, the other side of the bow frame structure 33 can maintain the accuracy of the overall structure.

[0063] The specific structure of the bow frame structure 33 is as follows:

[0064] The bow frame structure 33 includes a bow end frame portion 331, which is bow-shaped. Both its top and bottom are integrally formed with a widened bow head A. Therefore, the bow end frame portion 331 serves as the main beam frame structure to prevent deformation of the bow frame structure 33. Furthermore, each end of the bow end frame portion 331 has an integrally formed inclined arm portion 331. The inclined arm portion 331 matches the curvature of the arc-shaped bow arm 31 (the bow arm structure is fixedly connected to the inclined arm portion 331), thus fixing the main body of the arc-shaped bow arm 31.

[0065] Therefore, the inclined arm 331 protects the arc-shaped bow arm 31, preventing it from bending excessively and becoming unable to recover its deformation.

[0066] Meanwhile, in order to improve the structural strength of the bow frame structure 33, the main support part 332 of the bow frame structure 33 is integrally formed on the inner side of the bow end frame part 331. The main support part 332 is integrally formed on the bow end frame part 331 through a number of connecting parts.

[0067] Specifically, the top of the main support portion 332 is integrally formed on the inclined arm portion 331 through a vertically arranged first connecting portion 333; the upper left end of the main support portion 332 is integrally formed on the bow end frame portion 331 through an upwardly inclined second connecting portion 334; and the lower left end of the main support portion 332 is integrally formed on the bow end frame portion 331 through a downwardly inclined third connecting portion 335.

[0068] Under the aforementioned connection, the main support part 332, which serves as the main structure, is integrally attached to the bow end frame part 331 via the first connecting part 333, the second connecting part 334, and the third connecting part 335. Several through-hole structures are formed between the first connecting part 333, the second connecting part 334, and the third connecting part 335, which serves two purposes: firstly, to reduce material usage, and secondly, to reduce weight.

[0069] With the first connecting part 333 to the third connecting part 335 arranged in a radial pattern, the structural strength of the bow end frame part 331 and the main support part 332 is significantly improved. That is, once the entire bow frame is subjected to force, the bow end frame part 331 can distribute the stress to the main support part 332, thereby promoting the entire bow frame structure 33 to be less prone to deformation after being subjected to greater force, ensuring the stability and accuracy of the bow and crossbow structure.

[0070] Example 2

[0071] like Figure 1-7As shown, this embodiment is based on the structure of embodiment 1 and is the same as the existing crossbow. The inner side of the main support part 332 and the bow end frame part 331 is equipped with rollers 32 that roll against the steel column body. Specifically, as in the existing method, the rollers 32 are rotatably connected to the axles, and the two ends of the axles are fixed to the main support part 332 (the main support part 332 has a protruding structure 3321 integrally formed on it, and the axles are rotatably connected to the protruding structure 3321) and the bow end frame part 331 on both sides.

[0072] The design of the roller 32 is similar to that of existing crossbow designs, both intended to facilitate relative rolling of the bow frame structure 33 during the firing process of the firing mechanism 2.

[0073] Those skilled in the art can understand the function of the rollers in this utility model by consulting technical manuals and dictionaries. For example, the function of the rollers is the same as that in the composite bow shooting steel column assistant disclosed in Chinese patent application No. 202222459855.3.

[0074] Example 3

[0075] like Figure 1-7 As shown, in this embodiment, based on the structure of embodiment 2, in order to increase the accuracy of the crossbow firing, an aiming mechanism 1 is installed at the end of the main body of the steel column.

[0076] Specifically, the aiming mechanism 1 includes an aiming seat 12 sleeved at the end of the steel column body. A laser sight 11 (a conventional laser sight 11 disclosed in the prior art, i.e., the angle of laser emission can be adjusted by the adjustment knob on the laser sight 11) is mounted on the top of the aiming seat 12. A laser indicator rod 13 corresponding to the sight is sleeved inside the aiming seat 12, and a laser indicator bead 131 is installed at the end of the laser indicator rod 13. The laser indicator bead 131 is a conventional laser-emitting bead disclosed in the prior art, and its power supply installed inside the working laser indicator rod 13 automatically lights up.

[0077] During aiming, the laser spot emitted by the laser sight 11 is aligned with the laser spot emitted by the laser indicator bead 131 on the target. This method enables visual operation, facilitating crossbow aiming.

[0078] When the light spot emitted by the laser sight 11 coincides with that emitted by the laser pointer 13, it means that the crossbow has been calibrated.

[0079] Traditional crossbows only have a single laser sight, making it impossible to aim visually. When the laser sight 11 and the laser pointer 13 emit light spots that overlap, multiple shots can be fired in succession simply by adjusting the light spots to overlap during the firing process, effectively avoiding the drawback of needing to frequently aim during the firing process of traditional crossbows.

[0080] Specifically, the aforementioned aiming mount 12 has a cavity for inserting the laser pointer rod 13, and the cavity is connected to the firing cavity of the steel column body;

[0081] The top of the aiming mount 12 is fixedly connected to a mounting bracket, and the bottom of the laser aiming device 11 is fixedly connected to a clip that is engaged with the mounting bracket.

[0082] Example 4

[0083] like Figure 1-7 As shown, in this embodiment, based on the structure of embodiment 3, the arc-shaped bow arm 31 is provided with a support and buffer structure.

[0084] Specifically, the support and buffer structure includes elastic pads 311 supported between the two arc-shaped bow arms 31. The elastic pads 311 have slots on both sides that engage with the inner walls of the arc-shaped bow arms 31. The elastic pads 311 prevent the arc-shaped bow arms 31 from shifting during arc deformation, thus protecting the arc-shaped bow arms 31.

[0085] Similarly, the support and buffer structure also includes several columnar support pads 33111 fixedly connected to the inclined arm 331; the columnar support pads 33111 are supported at the bottom of the arc-shaped bow arm 31.

[0086] The cylindrical support pad 33111 also provides support and protection for the arc-shaped bow arm 31.

[0087] Example 5

[0088] like Figure 1-7 As shown, this embodiment is based on the structure of embodiment 4, and has the same bowstring structure as existing crossbows. A string-hanging wheel 4 (shaped like a cam) is rotatably connected between the inner ends of the aforementioned arc-shaped bow arms 31. The crossbow also includes a bowstring structure 8, which includes a tension bowstring 82 suspended between the string-hanging wheels 4. The bowstring structure also includes a pair of string hanging lines 81 fixed between the arc-shaped bow arms 31. The operator generates an elastic firing force by pulling the tension bowstring 82.

[0089] Meanwhile, a string-hanging seat 811 corresponding to the string-hanging seat 81 is fixedly connected to the curved bow arm 31. Correspondingly, a base 61 is fixedly connected to the bottom of the main support part 332, and a string-hanging rod 62 is fixedly connected between the bases 61. A string-hanging hook 621 is fixedly connected to the string-hanging rod 62. The center part of the string-hanging seat 81 is pulled on the string-hanging hook 621. By limiting the movement of the string-hanging hook 621, the string-hanging seat 81 and the bowstring 82 are misaligned (similar to existing crossbows, the string-hanging seat 81 needs to be misaligned with the bowstring 82 used for firing to avoid affecting the firing of the bowstring 82).

[0090] Meanwhile, a handle 7 is fixedly connected to the bottom of the base 61; handle connecting arms 71 are fixedly connected to the front and rear ends of the handle 7, and the handle connecting arms 71 are fixed on the inclined arm 331.

[0091] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A crossbow, comprising a launching mechanism for launching projectiles, the launching structure including a steel column body for storing projectiles, characterized in that, A bow frame mechanism is slidably connected to the main body of the steel column; an aiming mechanism is installed at the end of the main body of the steel column. The bow frame mechanism includes a bow arm structure and a bow frame structure fixedly installed between the bow arm structures; The bow frame structure includes a bow end frame, with inclined arms integrally formed at both ends of the bow end frame, and the bow arm structure is fixedly connected to the inclined arms. The main support part of the bow frame structure is integrally formed on the inner side of the bow end frame part, and the main support part is integrally formed on the bow end frame part through several connecting parts; The inner sides of the main support section and the bow end frame section are equipped with rollers that roll against the steel column body.

2. The crossbow according to claim 1, characterized in that, The bow arm structure includes a pair of arc-shaped bow arms arranged symmetrically at the top and bottom; The front and rear sides of the arc-shaped bow arm are respectively fixedly connected to the bow frame structure; The rollers are rotatably connected between the bow end frame and the main support.

3. The crossbow according to claim 1, characterized in that, The top of the main support portion is integrally formed on the inclined arm portion through a vertically set first connecting portion; The upper left end of the main support part is integrally formed on the bow end frame part through a second connecting part that is inclined upward; The lower left end of the main support is integrally formed on the bow end frame via a third connecting part that is inclined downwards.

4. The crossbow according to claim 2, characterized in that, The arc-shaped bow arm is equipped with a support and buffer structure.

5. The crossbow according to claim 4, characterized in that, The support and buffer structure includes an elastic pad supported between two arc-shaped bow arms. The elastic pad has slots on both sides, which engage with the inner wall of the arc-shaped bow arm. The support and buffer structure also includes several columnar support pads fixedly connected to the inclined arm; the columnar support pads are supported at the bottom of the arc-shaped bow arm.

6. The crossbow according to claim 2, characterized in that, A hanging wheel is rotatably connected between the inner ends of the arc-shaped bow arms; The crossbow also includes a bowstring structure, which includes a tension bowstring suspended between the string reels; the bowstring structure also includes a pair of string reels fixed between the curved bow arms; A string hanger corresponding to the string hanger is fixedly connected to the arc-shaped bow arm.

7. The crossbow according to claim 6, characterized in that, The bottom of the main support is fixedly connected to a base, and a string rod is fixedly connected between the bases. A string hook is fixedly connected to the string rod. The center part of the string is pulled onto the string hook, and the string is misaligned with the bowstring by the limit of the string hook.

8. The crossbow according to claim 7, characterized in that, A handle is fixedly connected to the bottom of the base; Handle connecting arms are fixedly connected to the front and rear ends of the handle, and the handle connecting arms are fixed to the slanted arm.

9. The crossbow according to claim 1, characterized in that, The aiming mechanism includes an aiming seat that is sleeved at the end of the main body of the steel column, and a laser aiming device is installed on the top of the aiming seat; The aiming mount is fitted with a laser indicator rod corresponding to the aiming device, and a laser indicator bead is installed at the end of the laser indicator rod; During aiming, the laser beam emitted by the laser sight is adjusted to coincide with the laser beam emitted by the laser indicator bead on the target.

10. The crossbow according to claim 9, characterized in that, The aiming mount has a cavity for inserting a laser pointer rod, and the cavity is connected to the emission cavity of the steel column body; The top of the aiming mount is fixedly connected to a mounting bracket, and the bottom of the laser aiming device is fixedly connected to a clip that engages with the mounting bracket.

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