Shooting crossbow for training and shooting crossbow training system

Abstract

The invention discloses a shooting crossbow for training and a shooting crossbow training system.The shooting crossbow for training is characterized in that the shooting crossbow for training is provided with a crossbow body, a crossbow arm, a crossbow string and a trigger mechanism, a shooting channel is formed in the crossbow body, a shooting block is arranged on the shooting channel in a sliding mode, and a damping device is arranged at the front end of the shooting channel; after the firing block is fired by elastic potential energy of the crossbow arm and the crossbow string, the firing block slides along the firing channel and collides with the damping device, and the damping device is used for absorbing kinetic energy of the firing block; an attitude sensor and a speed sensor are arranged at the front end of the crossbow body, the attitude sensor is used for detecting the attitude of the crossbow body, and the speed sensor is used for detecting the percussion speed of the percussion block; the shooting crossbow training system is used for collecting data of the attitude sensor and the speed sensor in a matched mode, and the training system can calculate the hit relation between the virtual crossbow arrow and the virtual arrow target according to the flight data of the virtual crossbow arrow and display the hit relation. Training can be carried out indoors and outdoors, and the safety is high.

Description

Technical Field

[0001] The present invention relates to the technical field of sports equipment, and more particularly to a crossbow for training and a crossbow training system. Background Art

[0002] Traditional crossbow training methods have many limitations. They rely on outdoor fields or simple indoor venues. Field training is severely restricted by weather and geographical conditions. Bad weather such as wind, rain, strong light, and low temperature will interfere with the training process. Simple indoor venues are unsafe, especially for beginners. Crossbows can easily deviate from the target, posing a safety risk.

[0003] In order to overcome these drawbacks, there is an urgent need for a crossbow specially used for training and a matching crossbow training system to meet the needs of multiple fields for accurate, safe and efficient training of crossbow skills. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a crossbow shooting training system and a crossbow shooting training system, which can be used for training both indoors and outdoors and have high safety, and are particularly suitable for beginners to use for training.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a training shooting crossbow, comprising a crossbow body, a crossbow arm, a crossbow string and a trigger mechanism, wherein a firing channel is arranged on the crossbow body, a firing block is slidably arranged on the firing channel, a damping device is arranged at the front end of the firing channel, when the firing block is fired by the elastic potential energy of the crossbow arm and the crossbow string, the firing block slides along the firing channel and collides with the damping device, and the damping device is used to absorb the kinetic energy of the firing block; a posture sensor and a speed sensor are arranged at the front end of the crossbow body, the posture sensor is used to detect the posture of the crossbow body, and the speed sensor is used to detect the firing speed of the firing block.

[0006] The present invention is further configured as follows: the damping device includes a damper and a collision block, the collision block is connected to the damping rod of the damper, the collision block is provided with a collision cavity filled with shock-absorbing material, and the shape of the collision cavity is adapted to the shape of the firing block.

[0007] The present invention is further configured as follows: the posture sensor is arranged at the front end of the firing channel, and the speed sensor is arranged at a position before the firing block collides with the damping device.

[0008] The present invention is further configured as follows: a retracting device is provided at the rear end of the crossbow body located at the trigger mechanism, and the retracting device is used to retract the firing block to a state ready to fire.

[0009] The present invention is further configured as follows: the retracting device includes a winding wheel, a winding rope, a winding motor and a limit block, one end of the winding rope passes through a through hole on the limit block and is connected to the firing block, and the other end is connected to and wound around the winding wheel, the winding motor is used to drive the winding wheel to rotate, so that the winding rope pulls the firing block, and a block is provided on the winding rope. When the firing block is pulled into place, the block abuts against the limit block.

[0010] The present invention is further configured as follows: the winding motor and the winding wheel are respectively provided with a main gear and a sub-gear, and the crossbow body is provided with a clutch mechanism for controlling whether the main gear and the sub-gear are engaged or not.

[0011] The present invention is further configured as follows: the clutch mechanism includes a first torsion spring structure, a second torsion spring structure and a locking structure, the first torsion spring structure is arranged between the limit block and the crossbow body, so that the limit block can elastically swing relative to the crossbow body; the second torsion spring structure is arranged between the rear end of the winding motor and the crossbow body, so that the winding motor can elastically swing relative to the crossbow body; the locking structure includes a locking arm arranged at the front end of the winding motor and a notch arranged on the limit block, and the locking arm is engaged with the notch.

[0012] The present invention is further configured as follows: a counterweight cavity, a counterweight element and a cover plate are provided on the firing block; the counterweight cavity is snap-connected to the cover plate; a plurality of counterweight grooves that are adapted to the shape and size of the counterweight element are provided in the counterweight cavity; and the counterweight element is installed in the counterweight groove.

[0013] The present invention further provides a crossbow training system, which includes the above-mentioned training crossbow, including a main controller and a display device, the main controller includes a data processing module and a calculation module, the data processing module is used to receive posture data and speed data collected by a posture sensor and a speed sensor, the calculation module calculates virtual crossbow flight data through the posture data, speed data and environmental simulation data, and the environmental simulation data at least includes gravity data; the calculation module also includes a virtual target, and calculates the hit relationship between the virtual crossbow and the virtual target according to the virtual crossbow flight data; the display device is used to display the virtual target and the virtual crossbow.

[0014] The present invention is further configured as follows: the display device is configured as a common display screen or an AR display device or a VR display device.

[0015] In summary, the present invention has the following beneficial effects:

[0016] The present invention is provided with a firing block and a damping device, and the firing block is driven by a crossbow arm and a crossbow string to simulate the firing of a crossbow arrow, and the damping device absorbs the kinetic energy of the firing block to prevent the firing block from separating from the crossbow body, and a posture sensor and a speed sensor are provided on the crossbow body to collect the posture of the crossbow body and the firing speed of the firing block. Combined with a crossbow shooting training system, a computer is used to calculate virtual crossbow arrow flight data according to the posture and firing speed of the crossbow body, and the hit situation is displayed on a virtual target. Therefore, the present invention does not need to fire a real crossbow arrow, and the training of crossbow shooting can be truly achieved both indoors and outdoors through the training crossbow and the crossbow shooting training system coordinated therewith, and the safety is very strong, and it is especially suitable for beginners to learn. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of a crossbow.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of a crossbow.

[0019] Figure 3 yes Figure 2 A is an enlarged structural diagram of FIG.

[0020] Figure 4 yes Figure 2 Schematic diagram of the enlarged structure at B.

[0021] Figure 5 It is a simplified flowchart of the crossbow training system.

[0022] Figure numerals: 1, crossbow body; 101, posture sensor; 102, speed sensor; 2, crossbow arm; 3, crossbow string; 4, trigger mechanism; 5, firing channel; 6, firing block; 601, counterweight chamber; 6011, counterweight slot; 602, counterweight element; 603, cover plate; 7, damping device; 701, damper; 702, collision block; 7021, collision chamber; 8, retraction device; 801, winding wheel; 802, winding rope; 8021, stopper; 803, winding motor; 804, limit block; 804a, notch; 8a, main gear; 8b, secondary gear; 1001, first torsion spring structure; 1002, second torsion spring structure; 1003, buckle structure; 1003a, buckle arm; 11, detection unit; 12, separation state. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] This embodiment discloses a crossbow for training. Figure 1-4As shown, the crossbow body 1 includes a crossbow arm 2, a crossbow string 3 and a trigger mechanism 4. The crossbow body 1 is provided with a firing channel 5, and a firing block 6 is slidably provided on the firing channel 5. A damping device 7 is provided at the front end of the firing channel 5. When the firing block 6 is fired by the elastic potential energy of the crossbow arm 2 and the crossbow string 3, the firing block 6 slides along the firing channel 5 and collides with the damping device 7, and the damping device 7 is used to absorb the kinetic energy of the firing block 6; a posture sensor 101 and a velocity sensor 102 are provided at the front end of the crossbow body 1, wherein the posture sensor 101 selects a micro-electromechanical system (MEMS) posture sensor, which integrates an accelerometer and a gyroscope. The accelerometer determines the inclination angle (pitch angle and roll angle) of the crossbow body by detecting the components of gravity acceleration in different axial directions, and the gyroscope is used to measure the angular velocity of the crossbow body, which can accurately capture the rapid rotation of the crossbow body at the moment of crossbow firing, thereby obtaining yaw angle information. Therefore, the posture of the crossbow body 1 can be effectively detected by adopting the posture sensor 101, and the speed sensor 102 can select the Hall sensor. The crossbow body and the firing block are both made of non-magnetic materials. Two magnetic detection units 11 are attached or embedded on the surface of the firing block 6. The distance between the two detection units 11 is fixed, and the firing speed of the firing block 6 can be obtained by detecting the time when the two detection units are triggered. The damping device 7 can prevent the firing block 6 from escaping from the firing channel 5. When the present invention is used, it does not rely on the launch of the crossbow arrow, but adopts the firing block 6 to replace the crossbow arrow, and by collecting the speed of the firing block 6, and the posture of the crossbow body 1 during the launch, a simulated crossbow arrow is formed in combination with a subsequent crossbow shooting training system, and the crossbow body 1 posture is kept stable and familiar with the use of the crossbow when assisting beginners to practice launching. The present invention is not picky about the venue, and can be trained indoors and outdoors, and because it is not a physical crossbow arrow, it has high safety.

[0025] Further, see Figure 3 The damping device 7 includes a damper 701 and a collision block 702. The collision block 702 is connected to the damping rod of the damper 701. The collision block 702 is provided with a collision cavity 7021 filled with a shock absorbing material. The shape of the collision cavity 7021 is adapted to the shape of the firing block 6. The damper 701 can be a hydraulic damper, a friction damper or an elastic damper of an adapted specification. It can be simply estimated in the present invention that the firing block is set at about 100 grams, the firing speed is about 30-60 meters per second, the kinetic energy is about 45-180 joules, and the braking distance of the damper 701 is about 50 centimeters. Based on the above, a damper of suitable specifications can be selected. The role of the collision cavity 7021 and the shock absorbing material therein is to allow the firing block 6 to be inserted into the collision cavity 7021 and absorb part of the impact force.

[0026] Furthermore, the attitude sensor 101 is set at the front end of the firing channel 5. The front end position is the position where the crossbow arrow leaves the firing channel 5. Therefore, setting the attitude sensor there can most accurately collect the subsequent flight of the simulated crossbow arrow. The speed sensor 102 should be set at the position before the firing block 6 collides with the damping device 7 to prevent the actual speed data from being affected by the damping deceleration.

[0027] Furthermore, since the firing block 6 of the present invention is always located in the firing channel 5, in order to facilitate automatic entry into the ready-to-fire state, the present invention is provided with a retracting device 8 at the rear end of the crossbow body 1 located at the trigger mechanism 4, and the retracting device 8 is used to retract the firing block 6 to the ready-to-fire state.

[0028] Further, see Figure 4 The retracting device 8 includes a reel 801, a reel rope 802, a reel motor 803 and a limit block 804. One end of the reel rope 802 passes through a through hole on the limit block 804 and is connected to the firing block 6. The other end is connected to and wound around the reel 801. The reel motor 803 is used to drive the reel 801 to rotate so that the reel rope 802 pulls the firing block 6. A stopper 8021 is provided on the reel rope 802. When the firing block 6 is pulled into place, the stopper 8021 abuts against the limit block 804. The simplest setting of the stopper 8021 can be a knot.

[0029] Furthermore, the winding motor 803 and the winding wheel 801 are respectively provided with a main gear 8a and a sub-gear 8b, and the crossbow body 1 is provided with a clutch mechanism for controlling whether the main gear 8a and the sub-gear 8b are engaged or not.

[0030] Furthermore, the clutch mechanism includes a first torsion spring structure 1001, a second torsion spring structure 1002 and a locking structure 1003, wherein the first torsion spring structure 1001 is arranged between the limit block 804 and the crossbow body 1, so that the limit block 804 can elastically swing relative to the crossbow body 1; the second torsion spring structure 1002 is arranged between the rear end of the winding motor 803 and the crossbow body 1, so that the winding motor 803 can elastically swing relative to the crossbow body 1; the locking structure 1003 includes a locking arm 1003a arranged at the front end of the winding motor and a notch 804a arranged on the limit block 804, and the locking arm 1003a is engaged with the notch 804a.

[0031] The working principle of the clutch structure is briefly described as follows:

[0032] During the winding process, the stopper 8021 abuts against the limit block 804, causing the limit block 804 to swing to overcome the elastic force of the first torsion spring structure 1001, so that the locking arm 1003a and the notch 804a are disengaged, and the second torsion spring structure 1002 drives the winding motor 803 to tilt up, so that the main gear 8a and the auxiliary gear 8b are separated, and the auxiliary gear 8b and the winding wheel 801 can rotate freely (i.e. Figure 4 The separation state 12 is shown by the dotted line; when winding is to be performed, the winding motor 803 is manually pressed down, the locking arm 1003a and the notch 804a are engaged, the main gear 8a and the sub-gear 8b are re-engaged, and the winding motor can now drive the winding wheel to rotate and then pull the winding rope to drive the firing block back to the ready-to-fire position.

[0033] The principle of firing and rewinding is briefly described as follows:

[0034] When firing, the clutch mechanism must be in a disengaged state (the winding wheel is free to rotate at this time and will not affect the firing of the firing block), and then the trigger mechanism 4 is pulled to disengage the trigger button from the bayonet at the bottom of the firing block 6, and the firing block 6 is driven to fire under the action of the crossbow string 3; when winding, first press down the winding motor to engage the clutch mechanism, and then the winding motor drives the winding rope to wind up the firing block. When it reaches the corresponding position, the block hits the limit block. After continuing to pull, the block will cause the limit block to deflect, thereby separating the clutch mechanism. At this time, the firing block 6 just happens to be re-stuck with the trigger mechanism 4, and enters the ready-to-fire state.

[0035] Through the above structure, the present invention can automatically enter the ready-to-fire state, which is more convenient to use.

[0036] Furthermore, the firing block 6 is provided with a counterweight chamber 601, a counterweight element 602 and a cover plate 603, the counterweight chamber 601 is snap-connected with the cover plate 603, a plurality of counterweight grooves 6011 matching the shape and size of the counterweight element 602 are provided in the counterweight chamber 601, and the counterweight element 602 is installed in the counterweight grooves 6011. The setting of the counterweight chamber 601 is used to adjust the weight of the firing block 6, change its speed and counterweight, and further train the user according to the hand feeling when firing different crossbow arrows.

[0037] The present invention further provides a crossbow shooting training system, which uses the above-mentioned training crossbow, referring to Figure 5, including a main controller and a display device, the main controller includes a data processing module and a calculation module, the data processing module is used to receive the posture data and speed data collected by the posture sensor 101 and the speed sensor 102, the calculation module calculates the virtual crossbow flight data through the posture data, speed data and environmental simulation data, the environmental simulation data at least includes gravity data, and the wind resistance data in the real environment can also be added, the calculation module also includes a virtual target, and the hit relationship between the virtual crossbow and the virtual target is calculated according to the virtual crossbow flight data; the display device is used to display the virtual target and the virtual crossbow. Thus, in conjunction with the training system, the virtual target is used to establish coordinates, the position data of the crossbow is collected, and then the virtual target is displayed on the display screen. The training personnel aim at the virtual target and fire, and the hit relationship on the virtual target can be obtained according to the virtual crossbow flight data, and the training effect is more intuitive. And the display device can not only be an ordinary display screen, but also an AR display device or a VR display device to obtain a better immersive training experience.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A crossbow for training, comprising a crossbow body (1), a crossbow arm (2), a crossbow string (3) and a trigger mechanism (4), characterized in that: The crossbow body (1) is provided with a firing channel (5), a firing block (6) is slidably provided on the firing channel (5), a damping device (7) is provided at the front end of the firing channel (5), when the firing block (6) is fired by the elastic potential energy of the crossbow arm (2) and the crossbow string (3), the firing block (6) slides along the firing channel (5) and collides with the damping device (7), and the damping device (7) is used to absorb the kinetic energy of the firing block (6); the front end of the crossbow body (1) is provided with a posture sensor (101) and a speed sensor (102), the posture sensor (101) is used to detect the posture of the crossbow body, and the speed sensor (102) is used to detect the firing speed of the firing block (6).

2. A crossbow for training according to claim 1, characterized in that: The damping device (7) comprises a damper (701) and a collision block (702); the collision block (702) is connected to a damping rod of the damper (701); the collision block (702) is provided with a collision cavity (7021) filled with a shock-absorbing material; the shape of the collision cavity (7021) is adapted to the shape of the firing block (6).

3. A crossbow for training according to claim 1, characterized in that: The posture sensor (101) is arranged at the front end of the firing channel (5), and the speed sensor (102) is arranged at a position before the firing block (6) collides with the damping device (7).

4. A crossbow for training according to claim 1, characterized in that: The crossbow body (1) is provided with a retracting device (8) at the rear end of the trigger mechanism (4), and the retracting device (8) is used to retract the firing block (6) to a state ready for firing.

5. A crossbow for training according to claim 4, characterized in that: The retracting device (8) comprises a reel (801), a reeling rope (802), a reeling motor (803) and a limit block (804); one end of the reeling rope (802) passes through a through hole on the limit block (804) and is connected to the firing block (6); the other end is connected to and wound around the reeling wheel (801); the reeling motor (803) is used to drive the reeling wheel (801) to rotate so that the reeling rope (802) pulls the firing block (6); a stop block (8021) is provided on the reeling rope (802); when the firing block (6) is pulled into place, the stop block (8021) abuts against the limit block (804).

6. A crossbow for training according to claim 5, characterized in that: The winding motor (803) and the winding wheel (801) are respectively provided with a main gear (8a) and a secondary gear (8b), and the crossbow body (1) is provided with a clutch mechanism for controlling whether the main gear (8a) and the secondary gear (8b) are engaged or not.

7. A crossbow for training according to claim 6, characterized in that: The clutch mechanism comprises a first torsion spring structure (1001), a second torsion spring structure (1002) and a locking structure (1003); the first torsion spring structure (1001) is arranged between a limit block (804) and a crossbow body (1), so that the limit block (804) can swing elastically relative to the crossbow body (1); the second torsion spring structure (1002) is arranged between a rear end of a winding motor (803) and the crossbow body (1), so that the winding motor (803) can swing elastically relative to the crossbow body (1); the locking structure (1003) comprises a locking arm (1003a) arranged at the front end of the winding motor and a notch (804a) arranged on the limit block (804); the locking arm (1003a) is engaged with the notch (804a).

8. A crossbow for training according to claim 1, characterized in that: The firing block (6) is provided with a counterweight cavity (601), a counterweight element (602) and a cover plate (603); the counterweight cavity (601) is snap-connected with the cover plate (603); a plurality of counterweight grooves (6011) whose shapes and sizes match those of the counterweight element (602) are provided in the counterweight cavity (601); and the counterweight element (602) is installed in the counterweight grooves (6011).

9. A crossbow training system, comprising the crossbow for training as claimed in claims 1 to 8, characterized in that: The invention comprises a main controller and a display device, wherein the main controller comprises a data processing module and a calculation module, wherein the data processing module is used to receive posture data and speed data collected by a posture sensor (101) and a speed sensor (102), and the calculation module calculates virtual crossbow arrow flight data through the posture data, speed data and environmental simulation data, wherein the environmental simulation data at least comprises gravity data; the calculation module also comprises a virtual target, and calculates the hit relationship between the virtual crossbow arrow and the virtual target according to the virtual crossbow arrow flight data; and the display device is used to display the virtual target and the virtual crossbow arrow.

10. A crossbow shooting training system according to claim 9, characterized in that: The display device is configured as a common display screen or an AR display device or a VR display device.

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