Transmission breaking mechanism of gearbox of remote control model car

Abstract

The utility model belongs to the technical field of transmission mechanisms, and particularly relates to a transmission breaking mechanism for a gearbox of a remote control model car, which comprises a transfer assembly and a two-drive and four-drive switching assembly. The transfer assembly comprises a first output shaft and a second output shaft; the first output shaft is rotationally sleeved with a first transmission gear and a second transmission gear, and the second output shaft is fixedly sleeved with an output gear. The two-drive and four-drive switching assembly comprises a clamping piece and a push-pull driving part; the push-pull driving part is used for driving the clamping part to reciprocate to be clamped with the first transmission gear or the first transmission gear and the second transmission gear; when the clamping piece is only clamped with the first transmission gear, the first output shaft independently rotates to perform two-drive output; when the clamping piece is clamped with the first transmission gear and the second transmission gear at the same time, the first output shaft and the second output shaft rotate at the same time to conduct four-wheel-drive output, switching between two-wheel drive and four-wheel drive can be achieved, the four-wheel-drive motor is suitable for various different use scenes, the experience feeling of a user is improved, the structure is simple and compact, and the market requirement can be better met.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission mechanisms, in particular to a transmission breaking mechanism for a gearbox of a remote control model car. Background Art

[0002] Remote control model cars are usually used under complex road conditions, and the single driving mode of remote control model cars cannot meet the needs of different road conditions. Therefore, the gearbox of the existing remote control model car can switch back and forth between the two-wheel drive mode and the four-wheel drive mode. For example, when the remote control model car is driving on some complex road conditions, it can be switched to the four-wheel drive mode to keep the remote control model car stable; for example, when the remote control model car is turning, it can be switched to the two-wheel drive mode to make the turning radius of the remote control model car smaller, which is conducive to the turning of the remote control model car, so as to meet the use scenarios of the remote control model car and the use needs of the user. However, the structure of the gearbox of the existing remote control model car switching back and forth between two-wheel drive and four-wheel drive is relatively complicated, which is not conducive to production and processing. Utility Model Content

[0003] The utility model aims to provide a transmission breaking mechanism for a remote control model car gearbox, aiming to solve one of the technical problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides a transmission disconnection mechanism for a remote control model car transmission, comprising a transfer assembly and a two-wheel drive or four-wheel drive switching assembly;

[0005] The transfer assembly comprises a first output shaft and a second output shaft arranged in parallel; the first output shaft is rotatably sleeved with a first transmission gear and a second transmission gear, the second output shaft is fixedly sleeved with an output gear, and the output gear is meshedly connected with the second transmission gear;

[0006] The two-wheel drive and four-wheel drive switching assembly includes a clamping piece and a push-pull driving component; the clamping piece is slidably sleeved on the outside of the first output shaft and can drive the first output shaft to rotate when rotating, and the push-pull driving component is used to drive the clamping piece to reciprocate along the first output shaft and clamp to the first transmission gear or the first transmission gear and the second transmission gear; when the clamping piece is only clamped to the first transmission gear, the first output shaft rotates alone to perform two-wheel drive output; when the clamping piece is simultaneously clamped to the first transmission gear and the second transmission gear, the first output shaft and the second output shaft rotate simultaneously to perform four-wheel drive output.

[0007] Optionally, the push-pull driving component includes a driving member, a shift rod and a shift fork; the shift rod is arranged parallel to the first output shaft, one end of the shift fork is fixed to the shift rod, and the other end of the shift fork is a fork connection portion, and the peripheral wall of the clamping member is provided with an annular plug-in groove, and the fork connection portion is inserted into the annular plug-in groove and can rotate relative to the clamping member; the driving member is connected to the shift rod to drive the shift rod to reciprocate along its axial direction, thereby driving the clamping member to reciprocate along the first output shaft.

[0008] Optionally, an eccentric portion is provided at the output end of the driving member, and the eccentric portion is rotatably connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to one end of the shift lever.

[0009] Optionally, at least one embedding block is provided at one end of the clamping member, at least one first insertion groove is penetrated through a side of the first transmission gear close to the embedding block, and at least one second insertion groove is provided on a side of the second transmission gear close to the first transmission gear, and the second insertion groove is arranged corresponding to the first insertion groove; the embedding block is used to be inserted into the first insertion groove to engage with the first transmission gear or to be inserted into the first insertion groove and the second insertion groove at the same time to engage with the first transmission gear and the second transmission gear.

[0010] Optionally, one end of the clamping member is provided with a plurality of the embedded blocks evenly distributed in a ring shape, the first transmission gear is provided with a plurality of the first insertion grooves evenly distributed in a ring shape, the second transmission gear is provided with a plurality of the second insertion grooves evenly distributed in a ring shape, and the plurality of the embedded blocks, the plurality of the first insertion grooves and the plurality of the second insertion grooves are arranged in a one-to-one correspondence.

[0011] Optionally, a non-circular shaft portion is provided in the middle of the first output shaft, a non-circular shaft hole is provided through the center of the clamping member, and the non-circular shaft hole is slidably sleeved on the non-circular shaft portion.

[0012] Optionally, the transmission disconnection mechanism of the remote control model car gearbox further includes a driving unit and a transmission assembly; the driving unit is connected to the first transmission gear through the transmission assembly to drive the first transmission gear to rotate.

[0013] Optionally, the transmission assembly is a gear set, the center of the driving gear of the gear set is fixedly connected to the output end of the driving unit, and the driven gear of the gear set is meshed and connected with the first transmission gear.

[0014] Optionally, the transmission assembly includes a driving gear, a first double-layer gear, a second double-layer gear, a third double-layer gear, a driven gear and a gear shaft; the center of the driving gear is fixedly arranged at the output end of the driving unit, the gear shaft is arranged parallel to the second output shaft, the first double-layer gear and the third double-layer gear are both rotatably sleeved outside the gear shaft, and the second double-layer gear and the driven gear are both rotatably sleeved outside the second output shaft; the large gear of the first double-layer gear is meshed and connected with the driving gear, the small gear of the first double-layer gear is meshed and connected with the large gear of the second double-layer gear, the small gear of the second double-layer gear is meshed and connected with the large gear of the third double-layer gear, the small gear of the third double-layer gear is meshed and connected with the driven gear, and the driven gear is meshed and connected with the first transmission gear.

[0015] Optionally, the transmission disconnecting mechanism of the remote control model car gearbox also includes a case shell; the transmission assembly is arranged in the case shell, the drive unit is arranged outside the case shell and its output end passes through the case shell and is connected to the transmission assembly; the first output shaft and the second output shaft are both rotatably connected in the case shell, and at least one end of the first output shaft and the second output shaft extends out of the case shell.

[0016] Compared with the prior art, the above one or more technical solutions in the transmission disconnection mechanism of the remote control model car gearbox provided by the embodiment of the utility model have at least one of the following technical effects:

[0017] When the push-pull driving component drives the clamping piece to move along the first output shaft and engage with the first transmission gear, the first transmission gear rotates and drives the first output shaft to rotate independently through the clamping piece to perform two-wheel drive output, that is, a two-wheel drive mode. The two-wheel drive mode can be a front-wheel drive mode or a rear-wheel drive mode. In the subsequent production of remote control model cars, the power of the first output shaft can be output to the front wheels or rear wheels according to the actual assembly requirements of the frame.

[0018] When the push-pull driving component drives the clamping piece to move along the first output shaft and clamps with the first transmission gear and the second transmission gear, when the first transmission gear rotates, it drives the first output shaft and the second transmission gear to rotate simultaneously through the clamping piece, and the second transmission gear drives the second output shaft to rotate through the output gear, so that the first output shaft and the second output shaft rotate simultaneously to output four-wheel drive, that is, the four-wheel drive mode. In the subsequent production of remote control model cars, the power of one of the first output shaft and the second output shaft can be output to the front wheels, and the power of the other can be output to the rear wheels according to the actual assembly requirements of the frame.

[0019] Therefore, the transmission disconnection mechanism of the remote control model car of the utility model can switch back and forth between two-wheel drive and four-wheel drive, is suitable for a variety of different usage scenarios, and enhances the user experience. The overall structure is simple and compact, and the size is small, which is not only conducive to production and processing, but also can better meet market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 The utility model is a schematic diagram of the structure of the transmission breaking mechanism of the remote control model car gearbox.

[0022] Figure 2 The utility model is a schematic diagram of the structure of the transmission breaking mechanism of the remote control model car gearbox hidden in the box shell.

[0023] Figure 3 This is another perspective view of the hidden box shell of the transmission disconnection mechanism of the remote control model car gearbox of the present utility model.

[0024] Figure 4 The utility model is a partial structural schematic diagram of the transmission breaking mechanism of the remote control model car gearbox.

[0025] Figure 5 for Figure 4 sectional view of .

[0026] Among them, the reference numerals in the figure are:

[0027] 100, transfer assembly; 110, first output shaft; 111, non-circular shaft portion; 120, second output shaft; 130, first transmission gear; 132, first insertion groove; 140, second transmission gear; 142, second insertion groove; 150, output gear;

[0028] 200, two-wheel drive and four-wheel drive switching assembly; 210, card connector; 211, annular plug-in slot; 212, embedded block; 213, non-circular shaft hole; 220, push-pull drive component; 221, shift lever; 222, shift fork; 223, fork connection part;

[0029] 300, drive unit;

[0030] 400, transmission assembly; 410, driving gear; 420, first double-layer gear; 430, second double-layer gear; 440, third double-layer gear; 450, driven gear; 460, gear shaft;

[0031] 500, box shell; 501, first perforation; 502, second perforation; 503, third perforation. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0036] In one embodiment of the present invention, referring to Figure 1-Figure 5 , a remote control model car transmission disconnection mechanism is provided, including a transfer assembly 100 and a two-wheel drive or four-wheel drive switching assembly 200.

[0037] Among them, refer to Figure 2 and Figure 3The transfer assembly 100 includes a first output shaft 110 and a second output shaft 120 arranged in parallel. The first output shaft 110 is rotatably sleeved with a first transmission gear 130 and a second transmission gear 140, and the second output shaft 120 is fixedly sleeved with an output gear 150, which is meshed with the second transmission gear 140.

[0038] Among them, refer to Figure 2 and Figure 3 The two-wheel drive and four-wheel drive switching assembly 200 includes a clamping member 210 and a push-pull driving component 220. The clamping member 210 is slidably sleeved on the outside of the first output shaft 110 and can drive the first output shaft 110 to rotate when rotating. The push-pull driving component 220 is used to drive the clamping member 210 to reciprocate along the first output shaft 110 and clamp with the first transmission gear 130 or the first transmission gear 130 and the second transmission gear 140. When the clamping member 210 is only clamped with the first transmission gear 130, the first output shaft 110 rotates alone to perform two-wheel drive output. When the clamping member 210 is clamped with the first transmission gear 130 and the second transmission gear 140 at the same time, the first output shaft 110 and the second output shaft 120 rotate at the same time to perform four-wheel drive output.

[0039] Compared with the prior art, the above one or more technical solutions in the transmission disconnection mechanism of the remote control model car gearbox provided by the embodiment of the utility model have at least one of the following technical effects:

[0040] Reference Figure 2 and Figure 3 When the push-pull driving component 220 drives the clamping piece 210 to move along the first output shaft 110 and clamp the first transmission gear 130, the first transmission gear 130 rotates and drives the first output shaft 110 to rotate alone through the clamping piece 210 to perform two-wheel drive output, that is, a two-wheel drive mode. The two-wheel drive mode can be a front-wheel drive mode or a rear-wheel drive mode. In the subsequent production of remote control model cars, the power of the first output shaft 110 can be output to the front wheels or rear wheels according to the actual assembly requirements of the frame.

[0041] Reference Figure 2 and Figure 3 When the push-pull driving component 220 drives the clamping piece 210 to move along the first output shaft 110 and clamp the first transmission gear 130 and the second transmission gear 140, when the first transmission gear 130 rotates, it drives the first output shaft 110 and the second transmission gear 140 to rotate simultaneously through the clamping piece 210, and the second transmission gear 140 drives the second output shaft 120 to rotate through the output gear 150, so that the first output shaft 110 and the second output shaft 120 rotate simultaneously to perform four-wheel drive output, that is, the four-wheel drive mode. In the subsequent production of remote control model cars, the power of one of the first output shaft 110 and the second output shaft 120 can be output to the front wheels, and the power of the other can be output to the rear wheels according to the actual assembly requirements of the frame.

[0042] Therefore, the transmission disconnection mechanism of the remote control model car of the utility model can switch back and forth between two-wheel drive and four-wheel drive, is suitable for a variety of different usage scenarios, and enhances the user experience. The overall structure is simple and compact, and the size is small, which is not only conducive to production and processing, but also can better meet market demand.

[0043] In another embodiment, referring to Figure 4 and Figure 5 The push-pull driving component 220 includes a driving member (not shown), a shift rod 221 and a shift fork 222. The shift rod 221 is arranged parallel to the first output shaft 110, one end of the shift fork 222 is fixedly sleeved on the shift rod 221, and the other end of the shift fork 222 is a U-shaped fork connection portion 223. The peripheral wall of the clamping member 210 is provided with a circle of annular plug-in grooves 211, and the fork connection portion 223 is inserted in the annular plug-in grooves 211 and can rotate relative to the clamping member 210, that is, the clamping member 210 can rotate relative to the fork connection portion 223 when rotating. The driving member is connected to the shift rod 221 to drive the shift rod 221 to reciprocate along its axial direction, thereby driving the clamping member 210 to reciprocate along the first output shaft 110. Specifically, the driving member drives the shift rod 221 to reciprocate along its axial direction, thereby driving the shift fork 222 to reciprocate, and then the fork connection portion 223 of the shift fork 222 pushes the clamping member 210 to reciprocate along the first output shaft 110, so that the clamping member 210 is clamped with the first transmission gear 130 or the first transmission gear 130 and the second transmission gear 140.

[0044] Furthermore, an eccentric part is provided at the output end of the driving member (not shown), and the eccentric part is rotatably connected to one end of a connecting rod, and the other end of the connecting rod is rotatably connected to one end of the shift rod 221. During operation, the driving member drives the eccentric part to reciprocate around the output end of the driving member, and the eccentric part drives the shift rod 221 to reciprocate along its axial direction (a direction parallel to the circumference of the first output shaft 110) through the connecting rod, and the structure is simple. The driving member can be a servo motor.

[0045] In other embodiments, the driving member may be a power device such as a cylinder or a linear module, as long as it can drive the shift rod 221 to move back and forth along its axial direction, and is not limited here.

[0046] In another embodiment, referring to Figure 3-Figure 5At least one embedding block 212 is provided at one end of the clamping member 210, at least one first insertion slot 132 is penetrated on the side of the first transmission gear 130 close to the embedding block 212, at least one second insertion slot 142 is provided on the side of the second transmission gear 140 close to the first transmission gear 130, and the second insertion slot 142 is arranged corresponding to the first insertion slot 132. The embedding block 212 is used to be inserted into the first insertion slot 132 to engage with the first transmission gear 130 or to be inserted into the first insertion slot 132 and the second insertion slot 142 at the same time to engage with the first transmission gear 130 and the second transmission gear 140. Specifically, in the two-wheel drive mode, the embedding block 212 is only inserted into the first insertion slot 132 to engage with the first transmission gear 130, so that the first output shaft 110 rotates alone to output two-wheel drive. When switching from the two-wheel drive mode to the four-wheel drive mode, the push-pull driving component 220 drives the embedded block 212 of the clamping member 210 to move in the direction close to the second insertion slot 142 and insert into the second insertion slot 142. At this time, the embedded block 212 is inserted into the first insertion slot 132 and the second insertion slot 142 at the same time and is engaged with the first transmission gear 130 and the second transmission gear 140, so that the first output shaft 110 and the second output shaft 120 rotate at the same time to perform four-wheel drive output. When switching from the four-wheel drive mode to the two-wheel drive mode, the push-pull driving component 220 drives the embedded block 212 of the clamping member 210 to move in the direction away from the second insertion slot 142 and disengage from the second insertion slot 142, so that the embedded block 212 is only inserted into the first insertion slot 132. Therefore, the structure of the transmission disconnection mechanism of the remote control model car gearbox of the utility model for switching back and forth between two-wheel drive and four-wheel drive is simple, which is conducive to production and processing.

[0047] Further, refer to Figure 4 and Figure 5 A plurality of embedded blocks 212 are evenly distributed in an annular pattern on one end of the clamping member 210, a plurality of first insertion grooves 132 are evenly distributed in an annular pattern on the first transmission gear 130, and a plurality of second insertion grooves 142 are evenly distributed in an annular pattern on the second transmission gear 140. The plurality of embedded blocks 212, the plurality of first insertion grooves 132, and the plurality of second insertion grooves 142 are arranged in a one-to-one correspondence. The plurality of embedded blocks 212 are clamped with the plurality of first insertion grooves 132 and / or the plurality of second insertion grooves 142, so that the connection is stable and not easy to shake during movement.

[0048] Preferably, refer to Figure 4 and Figure 5 The cross-sections of the first insertion groove 132 and the second insertion groove 142 are both larger than the cross-section of the embedding block 212 , which facilitates the insertion of the embedding block 212 into the first insertion groove 132 and / or the second insertion groove 142 .

[0049] Further, refer to Figure 5A non-circular shaft portion 111 is provided in the middle of the first output shaft 110, and a non-circular shaft hole 213 is penetrated in the center of the clamping member 210. The non-circular shaft hole 213 is slidably sleeved on the non-circular shaft portion 111, so that the clamping member 210 can reciprocate on the non-circular shaft portion 111 along the circumference of the first output shaft 110 under the push of an external force (such as a shift fork 222), and the clamping member 210 can drive the first output shaft 110 to rotate when rotating.

[0050] In another embodiment, referring to Figure 2 and Figure 3 The transmission breaking mechanism of the remote control model car gearbox also includes a driving unit 300 and a transmission assembly 400. The driving unit 300 is connected to the first transmission gear 130 through the transmission assembly 400 for driving the first transmission gear 130 to rotate.

[0051] In some embodiments, reference Figure 2 and Figure 3 The transmission assembly 400 is a gear set, the center of the driving gear 410 of the gear set is fixedly connected to the output end of the driving unit 300, and the driven gear 450 of the gear set is meshed and connected with the first transmission gear 130, so that the driving unit 300 drives the first transmission gear 130 to rotate through the gear set. The number of gears and gear parameters in the gear set can be determined according to actual production requirements and are not limited here.

[0052] In a specific embodiment, refer to Figure 2 and Figure 3 The transmission assembly 400 includes a driving gear 410, a first double-layer gear 420, a second double-layer gear 430, a third double-layer gear 440, a driven gear 450 and a gear shaft 460. The center of the driving gear 410 is fixedly arranged at the output end of the driving unit 300, the gear shaft 460 is arranged parallel to the second output shaft 120, the first double-layer gear 420 and the third double-layer gear 440 are both rotatably sleeved outside the gear shaft 460, and the second double-layer gear 430 and the driven gear 450 are both rotatably sleeved outside the second output shaft 120. The large gear of the first double-layer gear 420 is meshed and connected with the driving gear 410, the small gear of the first double-layer gear 420 is meshed and connected with the large gear of the second double-layer gear 430, the small gear of the second double-layer gear 430 is meshed and connected with the large gear of the third double-layer gear 440, the small gear of the third double-layer gear 440 is meshed and connected with the driven gear 450, and the driven gear 450 is meshed and connected with the first transmission gear 130. Specifically, the driving unit 300 drives the driving gear 410 to rotate, and the driving gear 410 drives the driven gear 450 through the first double-layer gear 420 , the second double-layer gear 430 and the third double-layer gear 440 , and the driven gear 450 drives the first transmission gear 130 to rotate.

[0053] In another embodiment, referring to Figure 1 and Figure 2 The transmission breaking mechanism of the remote control model car gearbox also includes a box shell 500. The transmission assembly 400 is arranged in the box shell 500, and the drive unit 300 is arranged outside the box shell 500 and its output end passes through the box shell 500 and is connected to the transmission assembly 400. The first output shaft 110 and the second output shaft 120 are both rotatably connected in the box shell 500, and at least one end of the first output shaft 110 and the second output shaft 120 extends out of the box shell 500, so that the first output shaft 110 and the second output shaft 120 output power. Preferably, the two ends of the first output shaft 110 rotate on the opposite side walls of the box shell 500 through bearings, and the two ends of the second output shaft 120 also rotate on the opposite side walls of the box shell 500 through bearings, so that the first output shaft 110 and the second output shaft 120 are stably rotatably installed in the box shell 500.

[0054] Among them, refer to Figure 1 and Figure 2 A first through hole 501 and a second through hole 502 are respectively formed on two opposite side walls of the box shell 500 , and two ends of the first output shaft 110 are respectively formed in the two first through holes 501 , and two ends of the second output shaft 120 are respectively formed in the two second through holes 502 .

[0055] Among them, refer to Figure 1 and Figure 2 At least one end of the shift rod 221 extends out of the housing 500, and the end of the shift rod 221 extending out of the housing 500 is used for transmission connection with the driving member. A third through hole 503 is provided on the two opposite side walls of the housing 500, and the two ends of the shift rod 221 are respectively provided in the two third through holes 503.

[0056] Among them, refer to Figure 1 and Figure 2 The driving unit 300 may be a motor, which is fixedly mounted on the outer wall of the housing 500 by a plurality of screws for easy assembly and disassembly. The output end of the motor passes through the housing 500 and is connected to the transmission assembly 400.

[0057] The two opposite side walls of the housing 500 are each provided with an insertion hole (not shown), and the two ends of the gear shaft 460 are respectively inserted into the two insertion holes, so that the gear shaft 460 can be stably rotatably installed in the housing 500.

[0058] Among them, the box shell 500 can be composed of a plurality of shells, and two adjacent shells are detachably connected by a plurality of screws. The box shell 500 is set as a combination structure of a plurality of shells, which is convenient for installing the transfer assembly 100, the two-wheel drive and four-wheel drive switching assembly 200, the drive unit 300 and the transmission assembly 400.

[0059] Among them, the remote control model car gearbox transmission disconnection mechanism can be applied to 1 / 12 climbing car, 1 / 14 climbing car, 1 / 16 climbing car, 1 / 18 climbing car, 1 / 24 climbing car, 1 / 32 climbing car, 1 / 64 climbing car, 1 / 5 racing car, 1 / 8 racing car, 1 / 10 racing car, 1 / 12 racing car, 1 / 14 racing car, 1 / 16 racing car, 1 / 18 racing car, 1 / 24 racing car, 1 / 28 racing car, 1 / 32 racing car, 1 / 64 racing car and other types of remote control model cars, without limitation here.

[0060] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0061] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A transmission disconnection mechanism for a remote control model car gearbox, characterized in that: Including transfer components and two-wheel drive and four-wheel drive switching components; The transfer assembly comprises a first output shaft and a second output shaft arranged in parallel; the first output shaft is rotatably sleeved with a first transmission gear and a second transmission gear, the second output shaft is fixedly sleeved with an output gear, and the output gear is meshedly connected with the second transmission gear; The two-wheel drive and four-wheel drive switching assembly includes a clamping piece and a push-pull driving component; the clamping piece is slidably sleeved on the outside of the first output shaft and can drive the first output shaft to rotate when rotating, and the push-pull driving component is used to drive the clamping piece to reciprocate along the first output shaft and clamp to the first transmission gear or the first transmission gear and the second transmission gear; when the clamping piece is only clamped to the first transmission gear, the first output shaft rotates alone to perform two-wheel drive output; when the clamping piece is simultaneously clamped to the first transmission gear and the second transmission gear, the first output shaft and the second output shaft rotate simultaneously to perform four-wheel drive output.

2. The transmission disconnection mechanism for a remote control model car gearbox according to claim 1, characterized in that: The push-pull driving component includes a driving member, a shift rod and a shift fork; the shift rod is arranged parallel to the first output shaft, one end of the shift fork is fixed to the shift rod, and the other end of the shift fork is a fork connection part; the peripheral wall of the clamping member is provided with an annular plug-in groove, and the fork connection part is inserted into the annular plug-in groove and can rotate relative to the clamping member; the driving member is connected to the shift rod to drive the shift rod to reciprocate along its axial direction, thereby driving the clamping member to reciprocate along the first output shaft.

3. The transmission disconnection mechanism for a remote control model car gearbox according to claim 2, characterized in that: An eccentric portion is provided at the output end of the driving member. The eccentric portion is rotatably connected to one end of a connecting rod. The other end of the connecting rod is rotatably connected to one end of the shift rod.

4. The transmission disconnection mechanism for a remote control model car transmission as claimed in claim 1, characterized in that: At least one embedding block is provided at one end of the clamping member, at least one first insertion groove is penetrated through a side of the first transmission gear close to the embedding block, and at least one second insertion groove is provided on a side of the second transmission gear close to the first transmission gear, and the second insertion groove is arranged corresponding to the first insertion groove; the embedding block is used to be inserted into the first insertion groove to engage with the first transmission gear or to be inserted into the first insertion groove and the second insertion groove at the same time to engage with the first transmission gear and the second transmission gear.

5. The transmission disconnection mechanism for a remote control model car transmission as claimed in claim 4, characterized in that: One end of the clamping member is evenly distributed with a plurality of the embedded blocks in a ring, the first transmission gear is evenly distributed with a plurality of the first insertion grooves in a ring, the second transmission gear is evenly distributed with a plurality of the second insertion grooves in a ring, and the plurality of the embedded blocks, the plurality of the first insertion grooves and the plurality of the second insertion grooves are arranged in a one-to-one correspondence.

6. The transmission disconnection mechanism for a remote control model car transmission as claimed in claim 1, characterized in that: A non-circular shaft portion is provided in the middle of the first output shaft, a non-circular shaft hole is provided through the center of the clamping member, and the non-circular shaft hole is slidably sleeved on the non-circular shaft portion.

7. The transmission disconnection mechanism for a remote control model car transmission according to any one of claims 1 to 6, characterized in that: The transmission breaking mechanism of the remote control model car gearbox also includes a driving unit and a transmission assembly; the driving unit is connected to the first transmission gear through the transmission assembly to drive the first transmission gear to rotate.

8. The transmission disconnection mechanism for a remote control model car transmission as claimed in claim 7, characterized in that: The transmission assembly is a gear set, the center of the driving gear of the gear set is fixedly connected to the output end of the driving unit, and the driven gear of the gear set is meshed and connected with the first transmission gear.

9. The transmission disconnection mechanism for a remote control model car transmission as claimed in claim 7, characterized in that: The transmission assembly includes a driving gear, a first double-layer gear, a second double-layer gear, a third double-layer gear, a driven gear and a gear shaft; The center of the driving gear is fixedly arranged at the output end of the driving unit, the gear shaft is arranged parallel to the second output shaft, the first double-layer gear and the third double-layer gear are both rotatably sleeved outside the gear shaft, and the second double-layer gear and the driven gear are both rotatably sleeved outside the second output shaft; the large gear of the first double-layer gear is meshed and connected with the driving gear, the small gear of the first double-layer gear is meshed and connected with the large gear of the second double-layer gear, the small gear of the second double-layer gear is meshed and connected with the large gear of the third double-layer gear, the small gear of the third double-layer gear is meshed and connected with the driven gear, and the driven gear is meshed and connected with the first transmission gear.

10. The transmission disconnection mechanism for a remote control model car transmission as claimed in claim 7, characterized in that: The transmission disconnection mechanism of the remote control model car gearbox also includes a box shell; the transmission assembly is arranged in the box shell, the drive unit is arranged outside the box shell and its output end passes through the box shell and is connected to the transmission assembly; the first output shaft and the second output shaft are both rotatably connected in the box shell, and at least one end of the first output shaft and the second output shaft extends out of the box shell.

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