CN110914632A - Gear transmission mechanism and water bullet rifle - Google Patents
Gear transmission mechanism and water bullet rifle Download PDFInfo
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- CN110914632A CN110914632A CN201880017709.9A CN201880017709A CN110914632A CN 110914632 A CN110914632 A CN 110914632A CN 201880017709 A CN201880017709 A CN 201880017709A CN 110914632 A CN110914632 A CN 110914632A
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- Prior art keywords
- assembly
- gear
- gear assembly
- transmission
- rotation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B7/00—Spring guns
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B7/00—Spring guns
- F41B7/08—Toy guns, i.e. guns launching objects of the gliding type, e.g. airplanes, parachute missiles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Abstract
A gear transmission mechanism and a water bullet gun. The gear transmission mechanism comprises a gear set connected with a driving device (30), the gear set is provided with at least one transmission gear assembly (10), the gear transmission mechanism further comprises an anti-reverse assembly (20), the anti-reverse assembly (20) is elastically abutted to one of the transmission gear assemblies (10), when the transmission gear assembly (10) rotates along a first direction, the anti-reverse assembly (20) elastically abuts against the transmission gear assembly (10), the transmission gear assembly (10) rotates around an axis and pushes the anti-reverse assembly (20) to move along the axis, and when the transmission gear assembly (10) rotates along a second direction opposite to the first direction, the anti-reverse assembly (20) and the transmission gear assembly (10) abut against each other and lock the rotating position of the transmission gear assembly (10). After the driving device (30) stops power input, the transmission gear assembly (10) stops rotating under the action of the self-prepressing force, the gear transmission mechanism cannot idle, the structure is compact, and the noise is low.
Description
Technical Field
The embodiment of the invention belongs to the technical field of spring guns, and relates to a gear transmission mechanism and a water bullet gun.
Background
The water bullet gun comprises a gun body, a power mechanism, a bullet supply mechanism and a launching mechanism, wherein the power mechanism, the bullet supply mechanism and the launching mechanism are arranged in the gun body, and the power mechanism is provided with a driving device and a speed change mechanism. If the driving mechanism is a power motor, the speed change mechanism is a gear box with multi-stage speed change through gears, the power motor drives the gear box to operate, and the gear box drives the launching mechanism to launch the water bullets outside the gun body.
In the related art, the gear box of the water bullet gun is not provided with the anti-reverse mechanism, and after the water bullet gun stops shooting the water bullets, the gears in the gear box can continue to rotate for a preset time length. Because the gears are in meshed connection, when the gears in the gear box idle, the gear box generates large noise, and the user experience is poor.
Disclosure of Invention
In view of this, the embodiment of the invention provides a gear transmission mechanism and a water bullet gun.
Specifically, the embodiment of the invention is realized by the following technical scheme:
according to a first aspect of embodiments of the present invention, there is provided a gear transmission mechanism, comprising a gear set connected with a driving device, the gear set being provided with at least one transmission gear assembly, the gear transmission mechanism further comprising an anti-reverse assembly, the anti-reverse assembly being elastically abutted to one of the transmission gear assemblies;
when the transmission gear assembly rotates along a first direction, the anti-reverse assembly elastically abuts against the transmission gear assembly, and the transmission gear assembly rotates around an axis and pushes the anti-reverse assembly to move along the axis; when the transmission gear assembly rotates along a second direction opposite to the first direction, the anti-reverse rotation assembly and the transmission gear assembly abut against each other and lock the rotating position of the transmission gear assembly.
Optionally, the anti-reverse assembly is resiliently flexible in a direction parallel to the axis of the drive gear assembly.
Optionally, the anti-reverse rotation assembly is slidably disposed on a rotating shaft, and the rotating shaft is collinear with an axis of the transmission gear assembly.
Optionally, the anti-reverse assembly includes an anti-rotation member and an elastic member elastically abutting against the anti-rotation member, and the elastic member pushes the anti-rotation member to elastically abut against the transmission gear assembly.
Optionally, the rotation-preventing member includes a main body portion and at least one stopping boss protruding from the main body portion, the elastic member elastically abuts against the main body portion, and the stopping boss abuts against the transmission gear.
Optionally, the stop boss comprises a ramp-shaped sliding surface and a stop surface at one end of the sliding surface, and when the transmission gear assembly rotates in a first direction, the transmission gear assembly is in sliding abutment with the sliding surface; the stop surface locks the drive gear assembly when the drive gear assembly is rotated in a second direction opposite the first direction.
Optionally, the transmission gear assembly comprises a gear shaft and a gear arranged on the gear shaft, the transmission gear assembly further comprises an anti-rotation portion protruding from one end of the gear or the gear shaft, the anti-rotation portion elastically abuts against the anti-rotation portion, when the transmission gear assembly rotates in a first direction, the anti-rotation portion slides along the surface of the anti-rotation portion, and the anti-rotation portion pushes the anti-rotation portion to move along the axial direction of the transmission gear assembly; when the transmission gear rotates in a second direction opposite to the first direction, the anti-rotation portion abuts against the anti-rotation preventing assembly to lock the rotation position of the transmission gear assembly.
Optionally, the anti-reverse rotation assembly is disposed in the gear set adjacent to the drive gear assembly of the drive device.
Optionally, the gear set comprises a first gear assembly engaged with the driving device, a second gear assembly engaged with the first gear assembly, and a third gear assembly engaged with the second gear assembly, and the anti-reverse assembly is elastically abutted to the first gear assembly.
According to a second aspect of the embodiments of the present invention, there is provided a water bullet gun, including a gun body, a firing mechanism installed in the gun body, a bullet feeding mechanism for supplying water bullets to the firing mechanism, and the gear transmission mechanism as described above, wherein the gear transmission mechanism drives the firing mechanism to compress to a preset position, and the firing mechanism is used for pushing the water bullets to move along the gun body so as to eject the water bullets out of the gun body.
The technical scheme disclosed by the embodiment of the invention has the following beneficial effects:
the gear transmission mechanism is provided with an anti-reverse component which is elastically abutted to the transmission gear component, the transmission gear component can only rotate along one rotation direction, and the stability of the rotation direction of the gear set is good. The anti-reverse component is elastically abutted against the transmission gear component, and pre-pressure is formed between the anti-reverse component and the transmission gear component. After the driving device stops power input, the transmission gear assembly stops rotating under the action of the pre-pressure force, the gear transmission mechanism cannot idle, the structure is compact, and the noise is low.
Drawings
Fig. 1 is a schematic perspective view of an exemplary gear train coupled to a drive device according to an embodiment of the present invention.
Fig. 2 is a front view of an exemplary gear train coupled to a drive device in accordance with an embodiment of the present invention.
FIG. 3 is a perspective view of an exemplary anti-reverse assembly resiliently abutting one of the drive gear assemblies in accordance with an embodiment of the present invention.
FIG. 4 is a cross-sectional schematic view of an exemplary anti-reverse assembly resiliently abutting one of the drive gear assemblies in accordance with an embodiment of the present invention.
FIG. 5 is a schematic view of an exemplary anti-rotation member according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an exemplary gear according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of an exemplary gear transmission mechanism applied to a water bullet gun according to an embodiment of the present invention.
In the figures, a transmission gear assembly 10; a gear 11; the helical tooth portion 111; a gear body portion 112; a straight tooth portion 113; a gear shaft 12; a rotation prevention section 13; the guide surface 131; a locking surface 132; the first gear assembly 14; a second gear assembly 15; a third gear assembly 16; a support shaft 161; a functional gear 162; an engaging portion 1621; a functional portion 1622; an anti-reverse assembly 20; an anti-rotation member 21; a main body portion 211; a stop boss 212; a sliding surface 2121; a stop surface 2122; an elastic member 22; a drive device 30; a gun body 40; a feed mechanism 50; a firing mechanism 60; a piston assembly 61; primary piston rack assembly 611; a secondary piston rack assembly 612; a resilient member 62.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of embodiments of the invention, as detailed in the following claims.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
As shown in fig. 1 and 2, the gear transmission mechanism includes a gear set connected to the driving device 30, and the gear set is provided with at least one transmission gear assembly 10. The drive unit 30 is connected to a gear train and regulates the output speed and torque through the gear train. The power transmission between the driving device 30 and the transmission gear assembly 10 can be transmitted by a direct transmission method or an indirect transmission method. In one embodiment, the output shaft of the drive device 30 is directly fixed to the rotating shaft of the transmission gear assembly 10. In one embodiment, a drive gear is mounted on the output shaft of the drive device 30, and the drive gear is in meshing engagement with the transmission gear assembly 10. In one embodiment, the output shaft of the driving device 30 is connected to the rotating shaft of the transmission gear assembly 10 by a clutch assembly. The driving device 30 and the gear set are connected in different modes, so that the gear set is applicable to different application scenes and has good practicability.
In one embodiment, the gear transmission further includes an anti-reverse assembly 20, the anti-reverse assembly 20 being resiliently abutted to one of the transmission gear assemblies 10. The gear set comprises one or more than one transmission gear assembly 10, and when one transmission gear assembly 10 of the gear set is adopted, the anti-reverse rotation assembly 20 is elastically abutted against the transmission gear assembly 10. When more than one transmission gear assembly 10 is provided, the transmission gear assemblies 10 are in meshed connection. The anti-reverse rotation assembly 20 is elastically abutted against one of the transmission gear assemblies 10. Accordingly, the entire gear train can be stopped from rotating after the drive device 30 stops the power input under the pre-pressure of the anti-reverse assembly 20.
The anti-reverse rotation assembly 20 is elastically abutted against the transmission gear assembly 10 and is also used for preventing the transmission gear assembly 10 from rotating in the direction. When the transmission gear assembly 10 rotates in the first direction, the anti-reverse assembly 20 elastically abuts against the transmission gear assembly 10, and the transmission gear assembly 10 rotates around the axis and pushes the anti-reverse assembly 20 to move along the axis. When the drive gear assembly 10 is rotated in a second direction opposite the first direction, the anti-reverse assembly 20 and the drive gear assembly 10 abut each other and lock the rotational position of the drive gear assembly 10.
The gear transmission mechanism is provided with an anti-reverse rotation component 20 which is elastically abutted to the transmission gear component 10, the transmission gear component 10 can only rotate along the first rotation direction, and the stability of the rotation direction of the gear set is good. The anti-reverse rotation assembly 20 and the transmission gear assembly 10 are mutually abutted and locked to prevent the reverse rotation of the gear set, the braking effect is good, and the controllability of the stop position of the transmission gear assembly 10 is strong. The anti-reverse rotation assembly 20 is elastically abutted against the transmission gear assembly 10 with pre-pressure therebetween. After the driving device 30 stops power input, the transmission gear assembly 10 stops rotating under the action of the self-prepressing force, and the gear transmission mechanism does not idle, so that the structure is compact and the noise is low.
The anti-reverse rotation assembly 20 is elastically abutted against the transmission gear assembly 10, and when the transmission gear assembly 10 rotates along the first direction, the transmission gear assembly 10 pushes the anti-reverse rotation assembly 20 to elastically stretch. Such as the anti-reverse rotation assembly 20 elastically abutting the transmission gear assembly 10 along the radial direction, the axial direction of the transmission gear assembly 10 or the direction inclined from the axis of the transmission gear assembly 10, so that the anti-reverse rotation assembly 20 can be pushed to elastically stretch when the transmission gear assembly 10 rotates in the first direction. When the transmission gear assembly 10 rotates in the second direction, the anti-reverse assembly 20 abuts against the transmission gear assembly 10.
As shown in FIGS. 3 and 4, in one embodiment, the anti-reverse assembly 20 elastically flexes in a direction parallel to the axis of the drive gear assembly 10. The transmission gear assembly 10 is driven to rotate by the driving device 30, and the transmission gear assembly 10 rotates around the axis thereof. The anti-reverse rotation assembly 20 is elastically abutted against the surface of the transmission gear assembly 10 along the axial direction of the transmission gear assembly 10, and the direction of the elastic acting force is perpendicular to the rotation plane of the transmission gear assembly 10. The reverse rotation preventing assembly 20 has little influence on the power transmission between the transmission gear assemblies 10, the meshing balance between the transmission gear assemblies 10 is good, and the power transmission is stable.
In an alternative embodiment, the anti-reverse assembly 20 is slidably mounted on a shaft that is collinear with the axis of the drive gear assembly 10. The shaft may be a cylindrical structure mounted on a fixed portion, or may be a gear shaft 12 of the transmission gear assembly 10. At least one matching plane is arranged between the anti-reverse assembly 20 and the rotating shaft, so that the anti-reverse assembly 20 can only move along the axial direction of the rotating shaft, for example, the rotating shaft on which the anti-reverse assembly 20 is installed is provided with two guide surfaces which are relatively parallel, or the rotating shaft is provided with a spline shaft. The anti-reverse rotation assembly 20 slides along the axial direction of the transmission gear assembly 10, and the abutting parts of the anti-reverse rotation assembly and the transmission gear assembly 10 are uniformly distributed, so that the stress of the transmission gear assembly 10 is uniform. For example, the reverse rotation preventing assembly 20 has two abutting portions, which are respectively disposed at opposite sides of the rotating shaft. The two abutting portions abut against the transmission gear assembly 10, so that pressing forces applied to the transmission gear 11 are symmetrically distributed. The anti-reverse rotation assembly 20 is collinear with the axis of the transmission gear assembly 10, so that the axial stress of the transmission gear assembly 10 is uniform, and the transmission gear assembly 10 rotates stably.
In one embodiment, the anti-reverse assembly 20 includes an anti-rotation member 21 and an elastic member 22 elastically abutting against the anti-rotation member 21, and the elastic member 22 pushes the anti-rotation member 21 to elastically abut against the transmission gear assembly 10. The rotation preventing member 21 is a rigid structure, which is abutted to the transmission gear assembly 10 so that an elastic force acts on the surface of the transmission gear assembly 10. The elastic member 22 may be a spring-like structure or made of an elastic material, and the elastic member 22 has a predetermined deformation amount, so that the rotation preventing member 21 is kept in a tight contact state with the transmission gear assembly 10 under the elastic force.
As shown in fig. 5, the rotation preventing member 21 is at least partially protruded to form an abutment portion which abuts against the transmission gear assembly 10. When the transmission gear assembly 10 rotates in the second direction, the abutting portion abuts against the transmission gear assembly 10 in the opposite direction, so as to prevent the transmission gear assembly 10 from rotating in the direction. In an alternative embodiment, the rotation-preventing member 21 includes a main body portion 211 and at least one stopping boss 212 protruding from the main body portion 211, the elastic member 22 elastically abuts against the main body portion 211, and the stopping boss 212 abuts against the transmission gear 11. When the transmission gear assembly 10 rotates along the first direction, the transmission gear assembly 10 abuts to push the stop boss 212 to move telescopically along the axial direction, wherein at least part of the contact surface of the stop boss 212 is provided with an inclined surface.
In an alternative embodiment, the main body 211 is sleeved outside the rotating shaft, and the main body 211 can move linearly along the rotating shaft. Two stop bosses 212 are convexly arranged on the end surface of the main body part 211, and the two stop bosses 212 are uniformly distributed on the main body part 211 along the clockwise direction or the anticlockwise direction. When the transmission gear assembly 10 rotates along the first direction, the two stop bosses 212 are attached to the surface of the transmission gear assembly 10 and move along the axial direction of the rotating shaft under the pushing of the transmission gear assembly 10. When the transmission gear assembly 10 rotates in the second direction, the transmission gear assembly 10 at least partially abuts against the two stop bosses 212, so that the two stop bosses 212 limit the rotation of the transmission gear assembly 10, thereby preventing the reverse transmission of the gear set. It is understood that the number of stop bosses 212 may be one, three, four, etc.
In an alternative embodiment, the stop boss 212 includes a ramp-shaped sliding surface 2121 and a stop surface 2122 at one end of the sliding surface 2121. When the transmission gear assembly 10 rotates in the first direction, the transmission gear assembly 10 slides against the sliding surface 2121. The stop surface 2122 locks the drive gear assembly 10 when the drive gear assembly 10 is rotated in a second direction opposite the first direction.
The sliding surface 2121 and the stopping surface 2122 form an angle or an angle extending from both surfaces, for example, the sliding surface 2121 and the stopping surface 2122 form an acute angle. When two or more stopping bosses 212 are provided on the main body portion 211, the sliding surface 2121 is distributed clockwise or counterclockwise so that the transmission gear assembly 10 slides along the sliding surface 2121. The stopper face 2122 is located at the end of the sliding face 2121 and forms a stepped structure with the end face of the main body portion 211. When the transmission gear assembly 10 rotates toward the second direction, the transmission gear assembly 10 abuts against the stop surface 2122 to lock the rotational position of the transmission gear 11. Wherein, the end surface of the transmission gear component 10 is provided with a boss structure or a groove structure matched with the stop boss 212.
As shown in fig. 2 and 3, in one embodiment, the transmission gear assembly 10 includes a gear shaft 12 and a gear 11 disposed on the gear shaft 12, and the gear 11 rotates with the gear shaft 12. The gear shaft 12 is mounted at both ends to a fixed object, such as the wall of a gearbox. The transmission gear assembly 10 further includes a rotation preventing portion 13 protruding from one end of the gear 11 or the gear shaft 12, and the rotation preventing assembly 20 is elastically abutted against the rotation preventing portion 13. The anti-rotation part 13 is arranged on the end face of the gear 11 or on the step face of the gear shaft 12 or on a boss on the gear shaft 12, and the anti-rotation component 20 is elastically abutted against the gear 11 or the gear shaft 12 and matched with the anti-rotation part 13.
As shown in fig. 3 and 6, when the transmission gear assembly 10 rotates in the first direction, the anti-reverse assembly 20 slides along the surface of the anti-reverse portion 13, and the anti-reverse portion 13 pushes the anti-reverse assembly 20 to move in the axial direction of the transmission gear assembly 10. When the transmission gear 11 is rotated in a second direction opposite to the first direction, the rotation preventing portion 13 abuts against the reverse rotation preventing assembly 20 to lock the rotational position of the transmission gear assembly 10.
In an alternative embodiment, the anti-reverse rotation assembly 20 is sleeved on the gear shaft 12 and slides along the gear shaft 12, and the anti-rotation member 21 abuts against the transmission gear assembly 10. The rotation preventing portion 13 is at least one rotation preventing boss provided at an end portion of the gear 11 and protruding outward. The anti-rotation boss is similar in structure to the stopper boss 212, and is provided with a ramp-shaped guide surface 131 and a locking surface 132 at one end of the guide surface 131. The guide surface 131 intersects the locking surface 132 at an angle or at an angle to the extension of both.
In an alternative embodiment, the anti-rotation member 21 is provided with two stop bosses 212 facing each other, and the anti-rotation portion 13 is provided with two anti-rotation bosses corresponding to the two stop bosses 212. When the gear 11 drives the two anti-rotation bosses to rotate towards the first direction, the guide surface 131 is attached to the sliding surface 2121 and pushes the anti-rotation member 21 to move outwards along the axis until the top of the anti-rotation boss abuts against the top of the stop boss 212, and the anti-rotation member 21 moves to the maximum displacement. The gear 11 continues to rotate until the anti-rotation boss is separated from the stop boss 212, and the end surface of the anti-rotation member 21 and the top surface of the anti-rotation boss contact each other. The gear 11 continues to rotate, and the rotation-preventing part 21 always abuts against the end face of the gear 11 elastically until the rotation-preventing boss and the other stop boss 212 of the rotation-preventing part 21 move relatively, and the process is repeated in sequence. When the gear 11 drives the two anti-rotation bosses to rotate in the second direction, the locking surfaces 132 of the anti-rotation bosses abut against the locking surfaces 2122 of the locking bosses 212, and the anti-rotation preventing assembly 20 blocks the gear 11 from continuing to rotate, so as to lock the position of the gear 11.
The anti-reverse rotation assembly 20 and the transmission gear assembly 10 are matched with each other to limit reverse rotation of the transmission gear assembly 10, and the transmission gear assembly 10 stops in time to avoid idle rotation and reverse rotation of the gear set.
As shown in FIGS. 1 and 2, in one embodiment, the anti-reverse assembly 20 is disposed in the gear set adjacent to the drive gear assembly 10 of the drive 30. When the gear set is a multi-stage gear meshing connection speed-changing structure, especially a reduction gear set, the transmission gear assembly 10 at the output end outputs a small rotation speed and a large torque, and the transmission gear assembly 10 at the end close to the driving device 30 outputs a large rotation speed and a small torque. The anti-reverse assembly 20 is abutted against the drive gear assembly 10 adjacent the drive device 30, and the elastic force of the anti-reverse assembly 20 on the drive gear assembly 10 is correspondingly reduced. Meanwhile, when the transmission gear assembly 10 rotates towards the second direction, the impact force impacting on the anti-reverse assembly 20 is correspondingly reduced, the material performance requirement of the anti-reverse assembly 20 is reduced, and the service life of the anti-reverse assembly 20 is long.
In an alternative embodiment, the gear set includes a first gear assembly 14 engaged with the driving device 30, a second gear assembly 15 engaged with the first gear assembly 14, and a third gear assembly 16 engaged with the second gear assembly 15, and the anti-reverse assembly 20 is elastically abutted to the first gear assembly 14. I.e. the first gear assembly 14 is the transmission gear assembly 10 connected to the drive means 30.
The driving device 30 is provided with an output gear 11, and the output gear 11 is in meshed connection with the first gear assembly 14. For example, the output gear 11 is a bevel gear, the first gear assembly 14 includes a gear shaft 12 and the gear 11 mounted on the gear shaft 12, and the gear 11 includes a tooth portion 112, a helical tooth portion 111 provided on one side of the tooth portion 112, and a straight tooth portion 113 provided on the other side of the tooth portion 112. Wherein the tooth body 112, the helical tooth portion 111 and the straight tooth portion 113 constitute a body portion, and the rotation-preventing boss is convexly provided on the outward side of the helical tooth portion 111. The output gear 11 is engaged with the helical tooth portion 111, the anti-reverse assembly 20 is slidably disposed on the gear shaft 12 and elastically abuts against the helical tooth portion 111, and the stop boss 212 of the anti-reverse assembly 20 is matched with the anti-reverse boss.
The straight tooth part 113 is convexly arranged on the tooth part 112 and is meshed with the second gear assembly 15, the second gear assembly 15 is meshed with the third gear assembly 16, and the first gear assembly 14, the second gear assembly 15 and the third gear assembly 16 are meshed and connected according to a preset transmission ratio.
The third gear assembly 16 includes a support shaft 161 and a function gear 162 mounted to the support shaft 161. The function gear 162 includes a meshing portion 1621 in meshing connection with the second gear assembly 15 and a function portion 1622 convexly disposed on the meshing portion 1621, wherein the function portion 1622 pushes corresponding mechanisms to operate according to different scenes. For example, the functional portion 1622 is configured to engage with a rack to connect with a gear, or a part of gear teeth is disposed on the functional portion 1622. Or the function portion 1622 is provided with a plurality of steps, and a part of gear teeth and the like are provided on the outer peripheral wall of each step.
As shown in fig. 7, an application scenario of the gear transmission mechanism in a water bullet gun is further provided in the embodiment of the present invention.
In one embodiment, the water-bullet gun includes a gun body 40, a firing mechanism 60 mounted within the gun body 40, a feed mechanism 50 that provides water bullets to the firing mechanism 60, and a gear train as described above. A gear train is used to drive the firing mechanism 60. Wherein the launching mechanism 60 comprises a piston assembly 61 and an elastic assembly 62 which is elastically abutted against the piston assembly 61, and the gear transmission mechanism is in driving connection with the piston assembly 61. For example, the functional portion 1622 of the third gear assembly 16 is drivingly connected to the piston assembly 61 such that the piston assembly 61 compresses the resilient assembly 62.
When the gear transmission mechanism drives the launching mechanism 60 to compress to a preset position, the launching mechanism 60 is used for pushing the water bullet to move along the gun body 40, so that the water bullet is ejected out of the gun body 40. The piston assembly 61 is slidably disposed in a trajectory of the gun body 40, in which the feed mechanism 50 replenishes the water bullet. When the piston assembly 61 is compressed to a preset position, the gear transmission mechanism is separated from the piston assembly 61, so that the piston assembly 61 is reset under the elastic force of the elastic assembly 62, and in the resetting process, the piston assembly 61 pushes the water bomb to move and provides kinetic energy for the water bomb. Accordingly, the water bullet slides along the trajectory of the gun body 40 until it is ejected from the muzzle. The gear transmission mechanism adopts multi-stage gears 11 for transmission, so that the output rotating speed of the gear set is reduced, the output torque is increased, the piston assembly 61 can bear larger pretightening force, and the launching speed of the water bomb is improved.
In an alternative embodiment, piston assembly 61 includes a primary piston rack assembly 611 and a secondary piston rack assembly 612 slidably disposed on primary piston rack assembly 611. The functional part 1622 of the third gear assembly 16 includes first-stage gear teeth and second-stage gear teeth, and the first-stage gear teeth and the second-stage gear teeth are only distributed on a partial surface of the functional part 1622, such as on one-third or one-fourth circumferential surface of the functional part 1622. The primary gear teeth are matched with the primary piston rack assembly 611, and the secondary gear teeth are matched with the secondary piston rack assembly 612.
When the primary gear teeth engage the primary piston rack assembly 611, the piston assembly 61 moves as a unit until the secondary gear teeth engage the secondary piston rack assembly 612. The secondary gear teeth drive the secondary piston-rack assembly 612 to continue compressing the elastic assembly 62 while the primary piston-rack assembly 611 is automatically returning. When the functional part 1622 continues to rotate to the surface where the secondary gear teeth are not arranged, the secondary piston rack assembly 612 is rapidly reset under the driving of the elastic force of the elastic assembly 62, and at the same time, the secondary piston rack assembly 612 pushes the water bullet to move along the trajectory. Piston assembly 61 sets up multistage pressure boost, and the extension of compression stroke for elastic component 62's compressive force is big, acts on the elastic force increase of water bullet, and user experience is good.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims (18)
1. A gear transmission mechanism is characterized by comprising a gear set connected with a driving device, wherein the gear set is provided with at least one transmission gear assembly, the gear transmission mechanism further comprises an anti-reverse assembly, and the anti-reverse assembly is elastically abutted to one of the transmission gear assemblies;
when the transmission gear assembly rotates along a first direction, the anti-reverse assembly elastically abuts against the transmission gear assembly, and the transmission gear assembly rotates around an axis and pushes the anti-reverse assembly to move along the axis; when the transmission gear assembly rotates along a second direction opposite to the first direction, the anti-reverse rotation assembly and the transmission gear assembly abut against each other and lock the rotating position of the transmission gear assembly.
2. The gear transmission of claim 1, wherein the anti-reverse assembly resiliently flexes in a direction parallel to the axis of the drive gear assembly.
3. The gear transmission of claim 1, wherein said anti-reverse assembly is slidably disposed on a shaft that is collinear with an axis of said drive gear assembly.
4. The gear transmission mechanism according to claim 1, wherein the anti-reverse assembly includes an anti-rotation member and an elastic member elastically abutting against the anti-rotation member, the elastic member urging the anti-rotation member to elastically abut against the transmission gear assembly.
5. The gear transmission mechanism according to claim 4, wherein the rotation preventing member includes a main body portion and at least one stopping boss protruding from the main body portion, the elastic member elastically abuts against the main body portion, and the stopping boss abuts against the transmission gear.
6. The gear transmission of claim 5, wherein said stop boss includes a ramp-like sliding surface and a stop surface at one end of said sliding surface, said drive gear assembly slidably abutting said sliding surface when said drive gear assembly is rotated in a first direction; the stop surface locks the drive gear assembly when the drive gear assembly is rotated in a second direction opposite the first direction.
7. The gear transmission mechanism according to claim 1, wherein the transmission gear assembly comprises a gear shaft and a gear arranged on the gear shaft, the transmission gear assembly further comprises an anti-rotation portion protruding from one end of the gear or the gear shaft, the anti-rotation portion is elastically abutted against the anti-rotation portion, when the transmission gear assembly rotates in a first direction, the anti-rotation portion slides along the surface of the anti-rotation portion, and the anti-rotation portion pushes the anti-rotation portion to move along the axial direction of the transmission gear assembly; when the transmission gear rotates in a second direction opposite to the first direction, the anti-rotation portion abuts against the anti-rotation preventing assembly to lock the rotation position of the transmission gear assembly.
8. The gear transmission of claim 1, wherein said anti-reverse assembly is disposed in said gear set adjacent a drive gear assembly of a drive.
9. The gear transmission of claim 8, wherein the gear set includes a first gear assembly engaged with the drive device, a second gear assembly engaged with the first gear assembly, and a third gear assembly engaged with the second gear assembly, the anti-reverse assembly resiliently abutting the first gear assembly.
10. A water bullet gun is characterized by comprising a gun body, a launching mechanism arranged in the gun body, a bullet supply mechanism for supplying water bullets to the launching mechanism and a gear transmission mechanism, wherein the gear transmission mechanism drives the launching mechanism to be compressed to a preset position, and the launching mechanism is used for pushing the water bullets to move along the gun body so as to enable the water bullets to be ejected out of the gun body;
the gear transmission mechanism comprises a gear set connected with the driving device, the gear set is provided with at least one transmission gear assembly, the gear transmission mechanism also comprises an anti-reverse assembly, and the anti-reverse assembly is elastically abutted to one of the transmission gear assemblies;
when the transmission gear assembly rotates along a first direction, the anti-reverse assembly elastically abuts against the transmission gear assembly, and the transmission gear assembly rotates around an axis and pushes the anti-reverse assembly to move along the axis; when the transmission gear assembly rotates along a second direction opposite to the first direction, the anti-reverse rotation assembly and the transmission gear assembly abut against each other and lock the rotating position of the transmission gear assembly.
11. The water bullet gun of claim 10 wherein said anti-reverse assembly is resiliently flexible in a direction parallel to the axis of said drive gear assembly.
12. The water bullet gun of claim 10 wherein said anti-reverse assembly is slidably mounted on a pivot shaft, said pivot shaft being collinear with an axis of said drive gear assembly.
13. The water cannon of claim 10 wherein the anti-reverse assembly includes an anti-rotation member and a resilient member resiliently abutting against the anti-rotation member, the resilient member urging the anti-rotation member resiliently abutting against the drive gear assembly.
14. The water bullet gun of claim 13, wherein said rotation-proof member comprises a main body and at least one stop boss protruding from said main body, said elastic member elastically abuts against said main body, and said stop boss abuts against said transmission gear.
15. The water bullet gun of claim 14 wherein said stop boss includes a ramp-like sliding surface and a stop surface at one end of said sliding surface, said drive gear assembly slidably abutting said sliding surface when said drive gear assembly is rotated in a first direction; the stop surface locks the drive gear assembly when the drive gear assembly is rotated in a second direction opposite the first direction.
16. The water bullet gun according to claim 10, wherein said transmission gear assembly comprises a gear shaft and a gear disposed on said gear shaft, said transmission gear assembly further comprises a rotation prevention portion protruding from one end of said gear or said gear shaft, said rotation prevention assembly elastically abuts against said rotation prevention portion, when said transmission gear assembly rotates in a first direction, said rotation prevention assembly slides along a surface of said rotation prevention portion, said rotation prevention portion pushes said rotation prevention assembly to move in an axial direction of said transmission gear assembly; when the transmission gear rotates in a second direction opposite to the first direction, the anti-rotation portion abuts against the anti-rotation preventing assembly to lock the rotation position of the transmission gear assembly.
17. The water bullet gun of claim 10 wherein said anti-reverse assembly is disposed in said gear train proximate a drive gear assembly of the drive.
18. The water bullet gun of claim 17 wherein said gear train includes a first gear assembly in meshing engagement with said drive means, a second gear assembly in meshing engagement with said first gear assembly and a third gear assembly in meshing engagement with said second gear assembly, said anti-reverse assembly resiliently abutting said first gear assembly.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820637635.6U CN208595200U (en) | 2018-04-28 | 2018-04-28 | Gear drive and water bullet rifle |
| CN2018206376356 | 2018-04-28 | ||
| PCT/CN2018/106274 WO2019205463A1 (en) | 2018-04-28 | 2018-09-18 | Gear transmission mechanism and gel ball gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110914632A true CN110914632A (en) | 2020-03-24 |
Family
ID=65600324
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820637635.6U Expired - Fee Related CN208595200U (en) | 2018-04-28 | 2018-04-28 | Gear drive and water bullet rifle |
| CN201880017709.9A Pending CN110914632A (en) | 2018-04-28 | 2018-09-18 | Gear transmission mechanism and water bullet rifle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820637635.6U Expired - Fee Related CN208595200U (en) | 2018-04-28 | 2018-04-28 | Gear drive and water bullet rifle |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN208595200U (en) |
| WO (1) | WO2019205463A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019205463A1 (en) | 2019-10-31 |
| CN208595200U (en) | 2019-03-12 |
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