Double-motor gear box of electric toy gun

Abstract

The utility model discloses a double motor gear box of electric toy gun, including box shell, install control chip in the box shell, and the exciting device of electric connection with control chip, electric connection of drive arrangement with control chip, and the launching device of drive arrangement transmission connection, have improved the advantage of firing speed and the initial velocity of projectile, solved when two motor simultaneous operation, if the difference exists in the rotating speed, will lead to the reverse force that drive part bears, specifically, when two motor common drive same transmission shaft, the motor of rotating speed faster will try to " drag " the motor of rotating speed slower, and the motor of rotating speed slow will be opposite to the motor of fast " brake resistance " formation, this kind of continuous interaction, long time will aggravate the wear and tear degree of component problem obviously.

Description

Technical Field

[0001] This utility model relates to the field of electric toys, specifically a dual-motor gearbox for an electric toy gun. Background Technology

[0002] Airsoft guns, also known as lightweight air guns, are typically made of plastic or metal. Their designs are often modeled after various weapons, hence the name "simulation guns." They fire 6mm or 8mm spherical projectiles. Unlike real guns and heavy air guns, lightweight air guns use pneumatic compression to produce fine, light projectiles. The projectiles are made of absorbent resin to prevent injury.

[0003] As a type of air gun, the basic principle of an electric toy gun is that an electric motor drives a gear, which in turn drives a piston to compress the air in the cylinder, thus ejecting the projectile from the muzzle of the toy gun. It can automatically load projectiles and fire continuously.

[0004] Over the years, electric toy guns have cultivated a group of seasoned survival game players. These players often have higher demands for gun performance, especially valuing faster rates of fire and higher muzzle velocities. However, due to the strict limitations of the gun's internal space, performance improvements cannot be achieved by installing a more powerful motor. Therefore, adding a motor has become a straightforward and common solution.

[0005] However, when two motors operate simultaneously, a difference in their speeds can cause the drive components to experience opposing forces. Specifically, when two motors drive the same drive shaft, the faster motor will attempt to "drag" the slower motor, while the slower motor will, in turn, exert "braking resistance" on the faster motor. This continuous interaction will significantly increase the wear and tear on the components over time. Utility Model Content

[0006] In order to overcome the technical defects in compatibility between dual motors, this utility model provides a dual-motor gearbox for an electric toy gun.

[0007] To solve the above problems, this utility model is implemented according to the following technical solution:

[0008] The present invention relates to a dual-motor gear box for an electric toy gun, comprising a housing, wherein a control chip, an excitation device electrically connected to the control chip, a drive device electrically connected to the control chip, and a firing device pulsatingly connected to the drive device are installed inside the housing; the drive device includes two drive mechanisms, two transmission mechanisms, a double-link mechanism, and a push-pull rod; all drive mechanisms are electrically connected to the control chip; two transmission mechanisms, each pulsatingly connected to adjacent drive mechanisms, are installed inside the housing; a double-link mechanism, each pulsatingly connected to two transmission mechanisms, is installed inside the housing; a push-pull rod, pulsatingly connected to the double-link mechanism, is slidably connected to the housing; and the push-pull rod is pulsatingly connected to the firing device; two pawls, engaged with the transmission mechanisms, are movably connected inside the housing; each pawl is provided with a torsion spring between itself and the housing.

[0009] Preferably, the excitation device includes a start switch and a trigger. The start switch, which is electrically connected to the control chip, is installed inside the housing, and the trigger, which is hinged inside the housing and closely fitted to the start switch, is also installed inside the housing.

[0010] Preferably, the drive mechanism includes a drive motor and a drive bevel gear. Two drive motors are installed inside the housing. Each drive motor is electrically connected to the control chip, and each drive motor has a drive bevel gear installed at its output end.

[0011] Preferably, the transmission mechanism includes a transmission shaft, a transmission gear, a transmission bevel gear, and a ratchet gear. Two transmission shafts are rotatably connected inside the housing. A transmission gear is mounted on the outer side of the transmission shaft, and a transmission bevel gear that meshes with an adjacent driving bevel gear is mounted on the outer side of the transmission shaft.

[0012] Preferably, the double-link mechanism includes a double-link shaft, an intermittent gear, a drive gear, and a linkage pin. The double-link shaft is rotatably connected inside the housing. An intermittent gear is installed on the outer side of the double-link shaft. A drive gear that meshes with the drive gear is installed on the outer side of the double-link shaft. A linkage pin that is connected to the push-pull rod is provided between the intermittent gear and the drive gear.

[0013] Preferably, the launching device includes a spring tail, a cylinder spring, a piston cylinder, a cylinder housing, a cylinder housing front cover, a sliding spring, and a sliding tube. The spring tail is installed inside the housing, and the cylinder spring is installed on the spring tail. The piston cylinder is installed at the other end of the cylinder spring. The cylinder housing is slidably connected inside the housing and is located outside the piston cylinder and in close contact with it. The piston cylinder is provided with a rack that meshes with an intermittent gear. The cylinder housing front cover is installed on the cylinder housing and is drivenly connected to a push-pull rod. The sliding spring is installed on the cylinder housing front cover. The sliding tube connected to the sliding spring is installed inside the housing. The cylinder housing is connected to the sliding tube along the cylinder housing front cover.

[0014] Preferably, the housing is movably connected to a quick-release buckle that engages with the top of the spring.

[0015] Preferably, a gun barrel connected to a sliding sleeve is mounted on the housing, and a feeding tube connected to the gun barrel is mounted on the gun barrel.

[0016] Preferably, the housing is divided into front and rear parts, and the two parts of the housing are connected and fixed by bolts, pins or buckles.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By integrating the control chip, excitation device, drive device, and launch device into a housing, a compact and fully functional dual-motor gearbox system is formed. The two drive mechanisms work collaboratively under the control of the chip, transmitting power to the launch device via a transmission mechanism, a double linkage mechanism, and a push-pull rod. This achieves efficient power output from the dual-motor drive, improving the operational stability and power performance of the launch device. Simultaneously, the transmission connection design of each component ensures the continuity and reliability of power transmission.

[0019] The drive motors used in this device are DC asynchronous motors of the same model and specifications. The speed of the asynchronous motor fluctuates with the load. The two drive motors are rigidly connected by gear meshing. The speed of the faster motor will decrease due to the increased load, while the speed of the slower motor will increase due to the reduced load, thus achieving speed synchronization.

[0020] When the drive motors are actually working, the load current of the two drive motors has a certain redundancy compared with their rated current. The motor with better characteristics will be assigned a larger load. Specifically, the operating current of the two drive motors is different. The control chip in the housing will monitor the operating current of the two control chips in real time. When either of the two control chips exceeds the set overcurrent or overload threshold, the control chip will cut off the power supply to both drive motors at the same time for protection.

[0021] Moreover, the pawl 45 is engaged by the transmission mechanism under the action of the torsion spring 46, which restricts the reverse rotation of the transmission mechanism and plays a one-way locking role. This ensures the one-way nature of power transmission, prevents power loss, component damage or launch failure caused by reverse rotation, and improves the reliability and safety of the entire gearbox system. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a schematic diagram of the present invention;

[0024] Figure 2This is an exploded view of this utility model;

[0025] Figure 3 This is a connection diagram of the drive device of this utility model;

[0026] Figure 4 This is a schematic diagram of the transmission mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the double-link mechanism of this utility model;

[0028] Figure 6 This is a schematic diagram of the ratchet of this utility model.

[0029] In the picture:

[0030] 1. Housing; 2. Control chip; 3. Activation device; 31. Start switch; 32. Trigger; 4. Drive device; 41. Drive mechanism; 411. Drive motor; 412. Drive bevel gear; 42. Transmission mechanism; 421. Drive shaft; 422. Transmission gear; 423. Transmission bevel gear; 424. Ratchet; 43. Double linkage mechanism; 431. Double shaft; 432. Intermittent gear; 433. Drive gear; 434. Linkage pin; 44. Push-pull rod; 45. Pawl; 46. Torsion spring; 5. Launching device; 51. Spring tail; 52. Gas cylinder spring; 53. Piston cylinder; 54. Gas cylinder housing; 55. Cylinder housing front cover; 56. Sliding sleeve spring; 57. Sliding sleeve tube; 6. Quick-release buckle; 7. Barrel; 8. Feed tube. Detailed Implementation

[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0032] like Figures 1-6 As shown, the present invention discloses a dual-motor gear box for an electric toy gun, comprising a housing 1. The housing contains a control chip, an excitation device electrically connected to the control chip, a drive device electrically connected to the control chip, and a firing device driven by the drive device. The drive device includes two drive mechanisms, two transmission mechanisms, a double-link mechanism, and a push-pull rod. All drive mechanisms are electrically connected to the control chip. The housing contains two transmission mechanisms, each driven by an adjacent drive mechanism. The housing also contains two double-link mechanisms, each driven by one of the two transmission mechanisms. The housing is slidably connected to a push-pull rod driven by the double-link mechanism, and the push-pull rod is driven by the firing device. The housing also contains two movably connected... Transmission mechanism The snap-fit ​​pawl has a torsion spring between it and the housing.

[0033] Furthermore, the excitation device 3 includes a start switch 31 and a trigger 32. The start switch 31, which is electrically connected to the control chip 2, is installed inside the housing 1, and the trigger 32, which is hinged inside the housing 1 and fits tightly against the start switch 31, is also installed inside the housing 1.

[0034] The trigger 32 in the firing device 3 is tightly fitted with the start switch 31. When the trigger 32 is pulled, the start switch 31 is quickly activated, which in turn activates the entire gearbox system via the control chip 2. This design makes the firing operation more sensitive and convenient, allowing users to quickly start the toy gun's firing function and improving the immediacy and user experience of the operation.

[0035] Furthermore, the drive mechanism 41 includes a drive motor 411 and a drive bevel gear 412. Two drive motors 411 are installed inside the housing 1. Both drive motors 411 are electrically connected to the control chip 2. The output end of each drive motor 411 is equipped with a drive bevel gear 412.

[0036] The two drive motors 411 output power through the drive bevel gears 412 at the output end. The dual motor configuration provides a stronger power source for the gearbox. Compared with single motor drive, it can effectively improve the strength and stability of power output, ensuring that the launching device 5 can obtain sufficient power support under various working conditions. The design of the drive bevel gears 412 facilitates precise meshing and transmission with the subsequent transmission mechanism 42.

[0037] Furthermore, the transmission mechanism 42 includes a transmission shaft 421, a transmission gear 422, a transmission bevel gear 423, and a ratchet gear 424. Two transmission shafts 421 are rotatably connected inside the housing 1. A transmission gear 422 is installed on the outside of the transmission shaft 421, and a transmission bevel gear 423 that meshes with the adjacent drive bevel gear 412 is installed on the outside of the transmission shaft 421.

[0038] The transmission mechanism 42 transmits the power of the drive bevel gear 412 to the transmission gear 422 through the transmission shaft 421. The meshing of the transmission bevel gear 423 with the drive bevel gear 412 ensures the direction conversion and efficient transmission of power. The rotational connection design of the transmission shaft 421 makes the transmission process smoother and reduces power loss. At the same time, the two transmission mechanisms 42 correspond to the adjacent drive mechanisms 41 respectively, realizing the diversion and transmission of power.

[0039] Furthermore, the double-link mechanism 43 includes a double-link shaft 431, an intermittent gear 432, a drive gear 433, and a linkage pin 434. The double-link shaft 431 is rotatably connected inside the housing 1. The intermittent gear 432 is installed on the outside of the double-link shaft 431. The drive gear 433, which meshes with the transmission gear 422, is installed on the outside of the double-link shaft 431. A linkage pin 434, which is connected to the push-pull rod 44, is provided between the intermittent gear 432 and the drive gear 433.

[0040] The drive gear 433 in the double-link mechanism 43 meshes with the transmission gears 422 of the two transmission mechanisms 42, converging the power of the double transmission mechanisms 42 and transmitting it to the intermittent gear 432. The design of the intermittent gear 432 can realize intermittent power output. Combined with the transmission connection between the linkage pin 434 and the push-pull rod 44, the movement rhythm of the push-pull rod 44 can be precisely controlled, making the action of the launching device 5 more in line with the design requirements and improving the accuracy and regularity of the launch.

[0041] Furthermore, the launching device 5 includes a spring tail 51, a cylinder spring 52, a piston cylinder 53, a cylinder housing 54, a cylinder housing front cover 55, a sliding spring 56, and a sliding tube 57. The spring tail 51 is installed inside the housing 1, and the cylinder spring 52 is installed on the spring tail 51. The piston cylinder 53 is installed at the other end of the cylinder spring 52. The cylinder housing 54, located outside the piston cylinder 53 and in close contact with it, is slidably connected inside the housing 1. The piston cylinder 53 is provided with a rack that meshes with the intermittent gear 432. The cylinder housing front cover 55 is installed on the cylinder housing 54. The cylinder housing front cover 55 is connected to the push-pull rod 44. The sliding spring 56 is installed on the cylinder housing front cover 55. The sliding tube 57, which is connected to the sliding spring 56, is installed inside the housing 1. The cylinder housing 54 is connected to the sliding tube along the cylinder housing front cover 55.

[0042] In the launching device 5, the piston cylinder 53, under the action of the cylinder spring 52, cooperates with the cylinder shell 54 to form an airtight space. The movement of the piston cylinder 53 achieves air pressure change, thereby completing the launching action. The rack on the piston cylinder 53 meshes with the intermittent gear 432 to ensure effective power transmission. The sliding sleeve spring 56 and sliding sleeve tube 57 facilitate reset after launching. The transmission connection between the cylinder shell front cover 55 and the push-pull rod 44 enables the push-pull rod 44 to precisely control the launching device 5, ensuring a smooth and stable launching process.

[0043] Furthermore, the housing 1 is movably connected to a quick-release buckle 6 that engages with the spring tail 51.

[0044] The quick-release clip 6 engages with the spring tail top 51, facilitating quick disassembly and installation of the spring tail top 51 and related components. This makes subsequent maintenance, upkeep, and component replacement easier, reduces operational complexity, and improves the maintainability of the gearbox.

[0045] Furthermore, a gun barrel 7 connected to a sliding sleeve 57 is installed on the housing 1, and a feeding tube 8 connected to the gun barrel 7 is installed on the gun barrel 7.

[0046] The barrel 7 is connected to the sliding tube 57, and the feeding tube 8 is connected to the barrel 7, which realizes the smooth supply of ammunition and the continuity of the firing channel. This ensures that the ammunition can accurately enter the firing position and be fired through the barrel 7, improving the firing efficiency and stability of the toy gun and making the entire firing process smoother.

[0047] Furthermore, the housing 1 is divided into front and rear parts, and the two parts of the housing 1 are connected and fixed by bolts, pins or buckles.

[0048] The enclosure 1 is divided into front and rear parts and is fixed by bolts, pins or buckles. This split design facilitates the installation, debugging and maintenance of the internal components of the enclosure 1. The variety of connection methods makes its assembly more flexible, while ensuring the firmness of the enclosure 1 connection, providing stable installation space and protection for the internal components.

[0049] The working principle of the dual-motor gearbox of this utility model's electric toy gun is as follows:

[0050] When the trigger 32 of the firearm is pulled, the trigger rotates around its axis and contacts the start switch 31. The start switch 31 transmits a signal to the control chip 2. The control chip 2 simultaneously drives two drive motors 411 to start. The drive motors 411 used in this device are DC asynchronous motors of the same model and specifications, and their speeds fluctuate with changes in load. The two drive motors 411 are rigidly connected by gear meshing. The faster motor's speed decreases due to increased load, while the slower motor's speed increases due to reduced load, ultimately achieving speed synchronization.

[0051] The drive bevel gear 412 on the output shaft of the drive motor 411 rotates accordingly, driving the transmission bevel gear 423 meshing with it to rotate. The transmission bevel gear 423 drives the transmission shaft 421 and the transmission gear 422 to rotate, and the transmission gear 422 further drives the meshing drive gear 433 to rotate, driving the double shaft 431 and the intermittent gear 432 to rotate, realizing the transmission of power from the motor to the transmission gear set.

[0052] Intermittent gear 432 drives the rack at the lower part of the meshing piston cylinder 53, causing the piston cylinder 53 to move backward and compress the air cylinder spring 52. At the same time, during the rotation of the double coupling 431, the linkage pin 434 touches the push-pull rod 44, and drives the push-pull rod 44 and the locked sliding sleeve tube 57 to move backward at the same time. During the movement of the sliding sleeve tube 57, the sliding sleeve spring 56 is compressed.

[0053] After the sliding sleeve 57 moves backward a certain distance, the feeding tube 8 below the barrel 7 moves upward under the thrust of the external feeding device and enters the cavity coaxial with the barrel 7, completing the preparation for firing.

[0054] As the double coupling 431 continues to rotate, the linkage pin 434 separates from the push-pull rod 44. At this time, the compressed sliding sleeve spring 56 releases its elastic potential energy, pushing the push-pull rod 44 and the sliding sleeve tube 57 forward synchronously. The forward-moving sliding sleeve tube 57 pushes the projectile, which has entered the coaxial cavity, forward, allowing it to enter the inner cavity of the barrel 7. The front end of the sliding sleeve tube 57 and the inner cavity of the barrel 7 re-establish an airtight seal, preparing for the gas to propel the projectile.

[0055] As the double-coupling 431 continues to rotate counterclockwise, the toothed part of the intermittent gear 432 separates from the lower rack of the piston cylinder 53. The compressed cylinder spring 52 quickly releases its elastic potential energy, pushing the piston cylinder 53 forward rapidly, which in turn pushes the gas in the cylinder cavity through the air hole in the cylinder housing front cover 55, and then through the through hole in the sliding sleeve tube 57 to be quickly ejected.

[0056] Because the front end of the sliding sleeve 57 remains airtight with the inner cavity of the barrel 7, the rapidly ejected high-pressure gas propels the projectile forward from the inner cavity of the barrel 7. After firing, the compressed gas cylinder spring 52 pushes the piston cylinder 53 to continue moving forward, expelling the gas from the inner cavity of the air cylinder housing 54, and the piston cylinder 53 returns to its initial position.

[0057] As the twin shafts 431 continue to rotate, the intermittent gear 432 engages again with the lower rack of the piston cylinder 53, repeating the above-mentioned process of "rearward compression of the spring - sliding sleeve reset and push the bullet - gas emission". Therefore, as long as the trigger 32 of the firearm is kept pressed and not released, the drive motor 411 can work continuously, continuously firing the projectile from the inner cavity of the barrel 7.

[0058] After the trigger 32 is released, the start switch 31 resets, and the control chip 2 simultaneously cuts off the power to the drive motor 411, causing the device to stop working. At this time, the compressed cylinder spring 52 pushes the piston cylinder 53 forward to reset, thereby causing the double shaft 431, transmission gear 422, and transmission shaft 421 to rotate in the opposite direction. However, because the pawl 45 is engaged in the ratchet groove of the ratchet gear 424 under the force of the torsion spring 46, the transmission mechanism 42 is restricted from rotating in the opposite direction. Therefore, the piston cylinder 53 can quickly stop moving and remain in the current position, preventing the parts from spinning freely or becoming misaligned.

[0059] In actual operation, the load current of the two drive motors 411 has a certain redundancy compared to their rated current. The motor with better characteristics will be assigned a slightly larger load, which is manifested in the difference in operating current between the two drive motors 411. The control chip 2 in the housing 1 monitors the operating current of the two drive motors 411 in real time. When either of the two drive motors 411 exceeds the set overcurrent or overload threshold, the control chip 2 will simultaneously cut off the power supply to both drive motors 411 for protection, preventing damage to the motors due to overcurrent or overload, extending the service life of the motors, and ensuring the safe and stable operation of the entire device.

[0060] Throughout the process, the coordinated drive of the dual drive motors 411 provides the system with stable and powerful power. The rigid gear connection achieves speed synchronization, ensuring consistent power output during continuous firing. The cooperation between the pawl 45 and the ratchet 424 achieves precise one-way locking, improving stability when stopped. The airtight design of the sliding sleeve 57 and the barrel 7 ensures gas propulsion efficiency. The overcurrent and overload protection mechanism of the control chip 2 further ensures the safe operation of the device, ultimately achieving efficient and continuous firing of BB pellets.

[0061] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A dual-motor gearbox for an electric toy gun, comprising a housing, characterized in that: The housing contains a control chip, an excitation device electrically connected to the control chip, a drive device electrically connected to the control chip, and a transmitting device that is drively connected to the drive device. The driving device includes two driving mechanisms, two transmission mechanisms, a double linkage mechanism, and a push-pull rod. The driving mechanisms are all electrically connected to the control chip. The housing contains two transmission mechanisms that are respectively connected to the adjacent driving mechanisms. The housing contains a double linkage mechanism that is connected to both transmission mechanisms. The housing is slidably connected to a push-pull rod that is connected to the double linkage mechanism. The push-pull rod is connected to the launching device. The housing is movably connected to two pawls that engage with the transmission mechanism, and each pawl is provided with a torsion spring between itself and the housing.

2. The dual-motor gearbox of the electric toy gun according to claim 1, characterized in that: The activation device includes a start switch and a trigger. The start switch, which is electrically connected to the control chip, is installed inside the housing. The trigger, which is hinged inside the housing and fits tightly against the start switch, is also installed inside the housing.

3. The dual-motor gearbox of the electric toy gun according to claim 2, characterized in that: The drive mechanism includes a drive motor and a drive bevel gear. Two drive motors are installed inside the housing. Each drive motor is electrically connected to the control chip, and each drive motor has a drive bevel gear installed at its output end.

4. The dual-motor gearbox of the electric toy gun according to claim 3, characterized in that: The transmission mechanism includes a transmission shaft, a transmission gear, a transmission bevel gear, and a ratchet gear. Two transmission shafts are rotatably connected inside the housing. A transmission gear is mounted on the outside of the transmission shaft. A transmission bevel gear that meshes with an adjacent drive bevel gear is mounted on the outside of the transmission shaft. A ratchet gear that engages with an adjacent ratchet pawl is mounted on each transmission shaft.

5. The dual-motor gearbox of the electric toy gun according to claim 4, characterized in that: The double-coupling mechanism includes a double-coupling shaft, an intermittent gear, a drive gear, and a linkage pin. The double-coupling shaft is rotatably connected inside the housing. An intermittent gear is installed on the outside of the double-coupling shaft. A drive gear that meshes with the drive gear is installed on the outside of the double-coupling shaft. A linkage pin that is connected to the push-pull rod is provided between the intermittent gear and the drive gear.

6. The dual-motor gearbox of the electric toy gun according to claim 5, characterized in that: The launching device includes a spring tail, a gas cylinder spring, a piston cylinder, a gas cylinder housing, a cylinder housing front cover, a sliding sleeve spring, and a sliding sleeve tube. The spring tail is installed inside the housing, and the gas cylinder spring is installed on the spring tail. The piston cylinder is installed at the other end of the gas cylinder spring. The gas cylinder housing is slidably connected to and tightly fitted to the piston cylinder outside the housing. The piston cylinder is provided with a rack that meshes with an intermittent gear. The cylinder housing front cover is installed on the gas cylinder housing and is drivenly connected to a push-pull rod. The sliding sleeve spring is installed on the cylinder housing front cover. The sliding sleeve tube connected to the sliding sleeve spring is installed inside the housing. The gas cylinder housing is connected to the sliding sleeve tube along the cylinder housing front cover.

7. The dual-motor gearbox of the electric toy gun according to claim 6, characterized in that: The housing is movably connected to a quick-release buckle that engages with the top of the spring.

8. The dual-motor gearbox of the electric toy gun according to claim 7, characterized in that: The housing is fitted with a gun barrel that communicates with the sliding sleeve, and the gun barrel is fitted with a feeding tube that communicates with it.

9. The dual-motor gearbox of the electric toy gun according to claim 8, characterized in that: The casing is divided into front and rear parts, which are connected and fixed by bolts, pins or buckles.

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