Launching device for providing kinetic energy for arrow by driving rotating wheel through rotation of motor
By using a motor-driven rotating wheel to generate arrows through friction, the problem of existing crossbows and bows requiring external force for energy storage is solved. This enables rapid and continuous firing and quick switching between multiple targets, making it suitable for users of different physical conditions and improving firing efficiency.
Patent Information
- Application Number
- CN202511433657.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2025-11-28
AI Technical Summary
Existing crossbows and bows require external force to store energy, making them unsuitable for users with different physical conditions. Furthermore, their continuous firing time is insufficient to handle rapid firing and target switching in outdoor environments. Current technology cannot adapt to users with different physical conditions, and the long intervals between continuous firings cannot meet the needs of rapid target switching in outdoor environments.
The device uses an electric motor to drive a rotating wheel to provide kinetic energy. The rotation of the motor drives the wheel to generate friction between the wheel and the arrow to launch the arrow. It utilizes electrical energy to convert it into kinetic energy, thus realizing a rapid and continuous launching device that does not require external devices.
It enables rapid and continuous launch without the need for external energy storage, adapts to users with different physical conditions, meets the needs of rapid switching between multiple targets outdoors, and improves launch efficiency.
Smart Images

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Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of cold weapon technology, in particular to a launching device for providing kinetic energy to arrows by rotating a rotating wheel driven by a motor, which is suitable for outdoor competition, security training and other scenes. BACKGROUND
[0002] The existing crossbows and bows have two major defects: first, they need external force to store energy, which requires the user to have a certain physical condition, and cannot be used by users with different physical conditions; second, they can only store energy and launch once, and the existing crossbows and bows have a long time interval between consecutive launches after storing energy, which consumes a lot of physical strength and cannot meet the demand for rapid and continuous launching of arrows or projectiles in outdoor multi-target scenarios. SUMMARY
[0003] OBJECTIVE In view of the defects of the prior art, the present application aims to solve two problems: 1. to realize a launching device that does not require external force to store energy; and 2. to realize a device that can continuously launch arrows or projectiles by converting electrical energy into kinetic energy, thereby ensuring the rapid and continuous use of the electric launching device. TECHNICAL SOLUTION
[0004] The launching device comprises a support frame body, a drive motor, rotating wheels, a guide pipe, a connecting conductive wire and a power supply wire.
[0005] A pair of rotating wheel motors is symmetrically installed in the middle of the support frame, the rotating wheels are parallel to the support frame and the guide pipe, and the rotating wheels have the same diameter gap as the arrows. The outer edge of the rotating wheel can be made of rubber material to generate sufficient friction with the arrows under the action of centrifugal force during rotation, thereby providing the required kinetic energy for launching the arrows. The motor is connected to the power supply and rotates in the opposite direction, thereby providing the same direction friction from both sides of the arrow to the rotating wheel, so that the arrow obtains kinetic energy in the same direction.
[0006] The guide pipe is installed in the front end of the support frame to the rotating wheel, thereby further maintaining the controllability of the arrow movement direction. A pressing plate is installed above the rotating wheel to prevent the arrow from deviating upward, thereby ensuring that the arrow can enter the guide pipe. A guide groove is opened in the rear end of the support frame to the position of the rotating wheel, and the height of the guide groove is consistent with the rotating wheel and located in the middle of the two rotating wheels, thereby ensuring that the arrow can reach the position of the rotating wheel through the guide groove. BRIEF DESCRIPTION OF DRAWINGS
[0007] Figure 1 The present application is a perspective view; Figure 2 The present application is a structural schematic view (annotation: 1 - device main body support frame, 2 - guide pipe, 3 - limiting pressing plate, 4 - rotating wheel, 5 - drive motor, 6 - conductive wire, 7 - power supply wire); DETAILED DESCRIPTION
[0008] The launching device for providing kinetic energy to arrows or projectiles by rotating a rotating wheel driven by a motor is further described in detail in combination with the drawings.
[0009] As Figure 1 The support frame 1 body can be made of metal or plastic steel material that is not easy to deform, and the front end is pre-slotted to install a metal guide pipe 2. The drive motor 5 is symmetrically installed at the front middle of the support frame 1 at the end of the guide pipe 2.
[0010] As Figure 2 The transmission rotating wheel 4 is installed on the rotating shaft of the drive motor 5, parallel to the height of the support frame and the guide pipe, and located at the diameter center point of the guide pipe 2, so that the arrow can accurately enter the guide pipe 2. The diameter of the rotating wheel 4 is the distance between the two center shafts of the drive motor 5 minus the planned arrow radius, so as to ensure sufficient passing gap. The outer edge of the transmission rotating wheel 4 can be made of rubber material, so as to generate sufficient friction with the arrow under the action of centrifugal force during rotation, and provide the required kinetic energy for the arrow launch.
[0011] As Figure 2 The rear end of the support frame 1 body is slotted backward from the rotating wheel 4 and the center line of the rotating wheel 4, so as to place the arrow to reach the position of the rotating wheel 4.
[0012] As Figure 2 The pressing plate 3 is installed above the rotating wheel 4, and the front end of the pressing plate 3 is fixed on the support frame 1, and the front of the rotating wheel 4 is connected with the rear end of the guide pipe 2, so as to prevent the arrow from moving upward and failing to enter the guide pipe 2.
[0013] As Figure 2 The two symmetric drive motors 5 are connected by positive and negative electrodes to make the rotating direction of the rotating wheel 4 opposite, and the inside rotates towards the guide pipe 2, so that the friction direction on both sides of the arrow is consistent, and the arrow is launched in a directional manner.
[0014] After assembly, the external power supply line 7 is connected to the power supply, the drive motor 5 drives the rotating wheel 4 to rotate, the arrow is placed in the guide slot at the rear end of the support frame 1, the arrow is pushed to contact the rotating wheel 4, the rubber material on the outer edge of the rotating wheel 4 contacts the arrow on both sides under the action of centrifugal force to generate friction force, which is converted into the launch kinetic energy of the arrow, so that the arrow is launched.
Claims
1. A launching device that provides kinetic energy to an arrow by rotating a wheel driven by a motor, comprising a support frame (1), a guide tube (2) installed at the front end of the support frame (1), a pressure plate (3) restricting the upward displacement of the arrow, a transmission wheel (4), a drive motor (5), a conductive wire (6) connecting the motor (5), and a power line (7) connecting the conductive wire (6), characterized in that: The drive motor (5) and the transmission wheel (4) are mounted on a support frame (1) for placing arrows or projectiles. A guide tube (2) is placed at the front end of the support frame (1). A pressure plate (3) is placed above the wheel to restrict the direction of arrow movement. A conductive wire (6) is connected to the motor (5). A power line (7) connected to the conductive wire (6) is used to connect to an external power source. The arrow or projectile reaches the position of the wheel (4) through the guide groove. After the drive motor (5) is powered on, the outer edge of the wheel (4) provides kinetic energy to the arrow or projectile through friction or mechanical force. The guide tube (2) restricts the direction of movement.
2. The launching device according to claim 1, which uses a motor to drive a rotating wheel to provide kinetic energy to an arrow, is characterized in that: Increasing the number of drive motors (5) and transmission wheels (4) can improve the initial kinetic energy. The initial kinetic energy can be provided by changing the speed of the drive motor (5) and the diameter of the wheels (4).
3. The launching device according to claim 1, which uses a motor to drive a rotating wheel to provide kinetic energy to an arrow, is characterized in that: The support frame (1) can be equipped with a trigger, arrow or bullet storage clip at the rear end, and an independent power supply. An aiming device can be added to the front end to assist aiming. A switch can be added to the power line (7) to control the start and stop of the drive motor.