Electric composite bow

Abstract

The invention discloses an electric composite bow, and belongs to the technical field of composite bows. An electric composite bow comprises a bow body, the bow body comprises a bow body, a bow piece, a bow piece seat, a wheel set and a bow string, the upper end and the lower end of the bow body are each provided with a first installation shaft and a second installation shaft, the rear end of the bow piece seat is hinged to the first installation shaft, and the front end of the bow piece seat is provided with a third installation shaft; each of the second mounting shaft and the third mounting shaft is at least sleeved with a pulley; the capstan structure comprises a pull rope and a capstan arranged in the middle of the bow body, and the capstan is provided with a rope hanging point and a storage groove; the power system comprises a battery and a driving device, and the driving device can drive the winch to rotate so as to take up and pay off the rope. According to the electric composite bow provided by the invention, a user with small strength can also smoothly operate a composite bow with a high pound number.

Description

Technical Field

[0001] This invention relates to the field of composite bow technology, and more particularly to an electric composite bow. Background Technology

[0002] A compound bow is mainly assembled from components such as the handle, eccentric wheel assembly, main string, secondary string, limbs, and limb holder. The kinetic energy of drawing the bow is converted into potential energy by the eccentric wheel assembly through the deformation of the main string, allowing the limbs to store energy. When the main string is released, the limbs deform first, driving the pulley system via the secondary string, which in turn causes the main string to spring back, launching the arrow. Before drawing the bow, the limbs have an initial pre-bending angle. This pre-bending angle determines the draw weight of the compound bow; a larger pre-bending angle results in a higher draw weight and more energy stored after drawing. Therefore, the draw weight of the compound bow can be adjusted by adjusting the initial pre-bending angle of the limbs. In practice, high-draw weight compound bows require significant force to draw, and the drawing process requires continuous effort. The force-saving effect only occurs after the compound bow is fully drawn. Therefore, drawing high-draw weight compound bows with less force has become a pressing issue for the industry. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electric composite bow.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electric composite bow, characterized in that it comprises:

[0006] The bow body includes a bow body, bow limbs, bow limb seats, wheel assembly, and bowstring. The upper and lower ends of the bow body are provided with a first mounting shaft and a second mounting shaft. The rear end of the bow limb seat is hinged to the first mounting shaft, and the front end is provided with a third mounting shaft. At least one pulley is fitted on both the second mounting shaft and the third mounting shaft.

[0007] The winch structure includes a pull rope and a winch located in the middle of the bow body. The winch is provided with a rope hanging point and a storage groove. One end of the rope is fixed to the rope hanging point, and the other end passes through the storage groove and all pulleys in sequence before being fixed to the last pulley.

[0008] The power system includes a battery and a drive unit that drives the winch to rotate, thereby winding and unwinding the rope.

[0009] As a preferred technical solution of this application, both the second mounting shaft and the third mounting shaft are provided with three pulleys.

[0010] As a preferred technical solution of this application, the power system includes a tilt switch, which is electrically connected to the drive device.

[0011] This invention provides an electric composite bow, which has the following advantages:

[0012] After the compound bow is drawn back, the winch is rotated by the power system to retract the rope. This causes the rope to pull the front end of the bow plate holder towards the second mounting shaft, thereby increasing the deformation of the bow plates, increasing the energy stored in the bow plates, and improving the firing speed of the compound bow. Attached Figure Description

[0013] Figure 1 This is a structural diagram of an electric composite bow proposed in this invention;

[0014] Figure 2 This is a side view of an electric composite bow proposed in this invention;

[0015] Figure 3 for Figure 1 Enlarged view of part A in the middle. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0017] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] Example

[0020] Reference Figure 1 An electric composite bow, comprising:

[0021] The bow body includes a bow shaft, bow limbs, bow limb holder 20, eccentric wheel assembly, and bowstring. The upper and lower ends of the bow shaft 10 are each provided with a first mounting shaft 101 and a second mounting shaft 102. The rear end of the bow limb holder 20 is hinged to the first mounting shaft 101, and the front end is provided with a third mounting shaft 201. Figure 2 As shown, at least one pulley 303 is fitted on both the second mounting shaft 102 and the third mounting shaft 201. In order to achieve a higher force-saving ratio, the preferred solution is that three pulleys 303 are fitted on both the second mounting shaft 102 and the third mounting shaft 201.

[0022] The winch structure 30 includes a rope 304 and a winch 301 disposed in the bow body at a 10-part location, as shown below. Figure 3 As shown, the winch 301 is provided with a rope hanging point 302 and a storage groove. One end of the rope 304 is fixed to the rope hanging point 302, and the other end passes through the storage groove 305 and all the pulleys 303 in sequence before being fixed to the last pulley.

[0023] The power system includes a battery 40 and a drive unit 50, which drives the winch 301 to rotate, thereby winding and unwinding the rope 304.

[0024] In use, the user first draws the compound bow normally. At this time, the deformation of the bow limbs is greater than the initial pre-bending angle, meaning that some energy has been stored. For example, during this drawing process, the compound bow's draw weight is 30 pounds. The user only needs 30 pounds of force to fully draw the compound bow. Taking a compound bow that saves 80% of the effort as an example, after drawing, the force required to maintain the drawn bow state is only 6 pounds due to the force-saving ratio of the eccentric wheel assembly. While maintaining the drawn bow state, the power is turned on, and the drive device causes the winch to rotate and retract the rope. During the continuous retraction process, the rope pulls the front end of the bow limb holder towards the second mounting shaft, further increasing the deformation of the bow limbs and raising the draw weight of the compound bow to 40 pounds, 50 pounds, or higher. This increases the energy stored in the compound bow, thereby increasing the launch velocity of the projectile. The ultimate benefit of this invention is that it allows even users with limited strength to easily operate high-draw weight compound bows. After the projectile is launched, the energy stored in the bow is released, the drive mechanism reverses, the rope is released, and the pre-bending angle of the bow is restored to its initial state.

[0025] In another embodiment, the power system includes a tilt switch electrically connected to the drive device. When the bow is drawn but before firing, tilting the bow closes the tilt switch, which controls the drive device to reverse, releasing the rope and restoring the bow's pre-bending angle to its initial state.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electric composite bow, characterized in that, include: The bow body includes a bow body, bow limbs, bow limb seats, wheel assembly, and bowstring. The upper and lower ends of the bow body are provided with a first mounting shaft and a second mounting shaft. The rear end of the bow limb seat is hinged to the first mounting shaft, and the front end is provided with a third mounting shaft. At least one pulley is fitted on both the second mounting shaft and the third mounting shaft. The winch structure includes a pull rope and a winch located in the middle of the bow body. The winch is provided with a rope hanging point and a storage groove. One end of the rope is fixed to the rope hanging point, and the other end passes through the storage groove and pulley in sequence before being fixed to the last pulley. The power system includes a battery and a drive unit that drives the winch to rotate, thereby winding and unwinding the rope.

2. The electric composite bow according to claim 1, characterized in that, Both the second and third mounting shafts are equipped with three pulleys.

3. The electric composite bow according to claim 1, characterized in that, The power system includes a tilt switch, which is electrically connected to the drive unit.

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