CN220363460U - Push-pull distance-changing mechanism and model helicopter - Google Patents
Push-pull distance-changing mechanism and model helicopter Download PDFInfo
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- CN220363460U CN220363460U CN202320682606.2U CN202320682606U CN220363460U CN 220363460 U CN220363460 U CN 220363460U CN 202320682606 U CN202320682606 U CN 202320682606U CN 220363460 U CN220363460 U CN 220363460U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model provides a push-pull distance-changing mechanism and a model helicopter. The helicopter comprises a push-pull pitch-changing mechanism. The push-pull distance-changing mechanism is used for connecting the tail wing and the transmission unit of the helicopter, and comprises a push-pull rod module and a push-pull shaft sleeve module, wherein the push-pull rod module comprises a first push-pull rod and a second push-pull rod which are movably connected, and first connecting holes are formed in two ends of the first push-pull rod; the push-pull shaft sleeve module comprises a connecting rod, a shaft sleeve with a mounting hole, a rotating shaft and a movable piece, wherein the connecting rod sequentially penetrates through the first connecting hole and the mounting hole to be connected with the first push-pull rod; the rotating shaft penetrates through the shaft sleeve and is used for connecting the tail wing and the transmission unit; one end of the movable piece is indirectly connected with the shaft sleeve, and the other end of the movable piece is connected with the tail fin and used for applying acting force to the tail fin so as to change the corner of the tail fin.
Description
Technical Field
The utility model relates to the field of helicopters, in particular to a push-pull distance-changing mechanism and a model helicopter.
Background
The tail wing of the model helicopter can control the course balance of the helicopter during flight, and the components for adjusting the tail wing need good stability and reliability.
The existing regulating part on the market is controlled and regulated by a ball head rod pushing assembly, and the defect is that the ball head rod pushing assembly is high in cost, the stress point of the ball head rod pushing regulating assembly is the area with the largest outer diameter of the ball head, the stress area is small and easy to wear, the stress point of the second ball head is far away from the tail shaft, the shaft sleeve is easy to incline, the push-pull process is easy to clip, the sliding is not smooth, the helicopter course reaction is slow, the response is slow and the like.
Therefore, there is a need to provide a new push-pull pitch-changing mechanism and model helicopter to solve the above problems.
Disclosure of Invention
The utility model provides a model helicopter which is easy to adjust a tail wing, and aims to solve the problems that in the prior art, a model helicopter which is applicable to a tail wing adjusting assembly of a ball head rod assembly is easy to cause the inclination of a shaft sleeve, the acting force is not easy to be applied to the tail wing, and the rotation angle of the tail wing is difficult to be changed.
The utility model provides a push-pull distance-changing mechanism, which is used for connecting a tail wing and a transmission unit of a model helicopter, and comprises a push-pull rod module and a push-pull shaft sleeve module, wherein the push-pull rod module comprises a first push-pull rod and a second push-pull rod which are fixedly connected, and two ends of the first push-pull rod are provided with first connecting holes; the push-pull shaft sleeve module comprises a connecting rod, a shaft sleeve with a mounting hole, a rotating shaft and a movable piece, wherein the connecting rod sequentially penetrates through the first connecting hole and the mounting hole to be connected with the first push-pull rod; the rotating shaft penetrates through the shaft sleeve and is used for connecting the tail wing and the transmission unit; one end of the movable piece is connected with the shaft sleeve, and the other end of the movable piece is connected with the tail fin and used for applying acting force to the tail fin so as to change the corner of the tail fin.
The utility model also provides a model airplane helicopter, which comprises a push-pull distance-changing mechanism, a tail wing, a motor, a transmission unit, a propeller and a main shaft. The motor drives the transmission unit; the main shaft is electrically connected with the motor; the propeller is connected with the main shaft. The push-pull distance-changing mechanism is used for connecting the tail wing and the transmission unit of the model helicopter, and comprises a push-pull rod module and a push-pull shaft sleeve module, wherein the push-pull rod module comprises a first push-pull rod and a second push-pull rod which are fixedly connected, and first connecting holes are formed in two ends of the first push-pull rod; the push-pull shaft sleeve module comprises a connecting rod, a shaft sleeve with a mounting hole, a rotating shaft and a movable piece, wherein the connecting rod sequentially penetrates through the first connecting hole and the mounting hole to be connected with the first push-pull rod; the rotating shaft penetrates through the shaft sleeve and is used for connecting the tail wing and the transmission unit; one end of the movable piece is connected with the shaft sleeve, and the other end of the movable piece is connected with the tail fin and used for applying acting force to the tail fin so as to change the corner of the tail fin.
Compared with the prior art, the push-pull distance-changing mechanism provided by the utility model has the advantages that the number of parts is small, the structure is simple, the maintenance is also convenient, the push-pull stress point of the connecting rod can be maximally close to the tail wing, and the shaft sleeve can slide smoothly on the rotating shaft, so that the push-pull distance-changing mechanism is convenient for applying acting force to the tail wing to change the corner of the tail wing.
Drawings
FIG. 1 is a schematic view of a three-dimensional assembly of a model helicopter provided by the utility model;
FIG. 2 is a perspective assembly schematic view of the push-pull pitch change mechanism shown in FIG. 1;
FIG. 3 is another angular perspective assembly schematic view of the push-pull pitch change mechanism shown in FIG. 1;
FIG. 4 is a schematic perspective exploded view of the push-pull pitch change mechanism shown in FIG. 3;
fig. 5 is a perspective assembly schematic view of the connecting rod and sleeve shown in fig. 3.
FIG. 6a is a first operational state diagram of the model helicopter depicted in FIG. 1;
FIG. 6b is a second operational state diagram of the model helicopter depicted in FIG. 1;
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, fig. 1 is a schematic diagram of a three-dimensional assembly structure of a model helicopter 1 according to the present utility model. The model helicopter 1 comprises a push-pull variable-pitch mechanism 100, a tail wing 500, a motor 600, a transmission unit 700, a propeller 800 and a main shaft 900, wherein the motor 600 drives the transmission unit 700, the main shaft 900 is fixedly connected with the motor 600, the propeller 800 is connected with the main shaft 900, the push-pull variable-pitch mechanism 100 is connected with the tail wing 500 and the transmission unit 700 of the model helicopter 1 and is used for applying acting force to the tail wing 500 and adjusting the rotation angle of the tail wing 500.
Referring to fig. 2 and 3 in combination, fig. 2 is a schematic perspective assembly view of the push-pull pitch mechanism 100 of the model helicopter 1 shown in fig. 1, and fig. 3 is another perspective assembly view of the push-pull pitch mechanism 100 of the model helicopter 1 shown in fig. 1. The push-pull distance-changing mechanism 100 comprises a push-pull rod module 10 and a push-pull shaft sleeve module 303, wherein the push-pull rod module 10 can swing in the horizontal direction and is used for adjusting the position of a stress point; the push-pull shaft sleeve module 303 is used for being matched with the push-pull rod module 10, so that stability of the tail fin 500 is improved.
Referring to fig. 4 and 5 in combination, fig. 4 is a schematic perspective exploded view of a push-pull sleeve 303 module 30 of the push-pull pitch mechanism 100 of the model helicopter 1 shown in fig. 3; fig. 5 is a perspective assembly schematic view of the push-pull rod module 10 and the transmission unit 700 shown in fig. 1.
The push-pull rod module 10 comprises a first push-pull rod 101, a second push-pull rod 103 and a third push-pull rod 105, wherein the first push-pull rod 101 and the second push-pull rod 103 are fixedly connected, the third push-pull rod 105 is movably connected with the first push-pull rod 101 and the second push-pull rod 103, and first connecting holes 1011 are formed at two ends of the first push-pull rod 101; the second push-pull rod 103 is provided with a second connecting hole 1031; the third push-pull rod 105 is provided with a third connecting hole 1051. The first, second and third connection holes 1011, 1031 and 1051 are penetrated by a second connection member (not shown) to connect the first, second and third connection holes 1011, 1031 and 1051. The screws are push-pull stress points, so that the stress area of the push-pull rod module 10 is larger. The number of the first connection holes 1011, the second connection holes 1031, and the third connection holes 1051 is 2; the end of the second push-pull rod 103, which is far away from the first push-pull rod 101, is further penetrated with a ball assembly, and is connected with the transmission unit 700, so as to provide a stress point.
It should be noted that, the second connecting piece (not shown) may be a screw, or may be another connecting piece having a structural function similar to a rotation shaft, the circular holes of the first connecting hole 1011, the second connecting hole 1031 and the third connecting hole 1051 are equal to a circle center of the circular motion, and the push-pull rod module 10 performs the circular motion around the circle center.
The push-pull shaft sleeve 303 module 30 comprises a connecting rod 301, a shaft sleeve 303 with a mounting hole 3031, a movable part 304, a rotating shaft 305, a tail push-pull arm 307 and a fixed unit 309. The connecting rod 301 sequentially penetrates through the first connecting hole 1011 and the mounting hole 3031 to be connected with the first push-pull rod 101, the connecting rod 301 comprises a limiting portion (not shown) and a fixing portion (not shown) which are oppositely arranged, the fixing portion (not shown) is provided with threads, the fixing portion (not shown) is screwed into the first connecting hole 1011 through threads to be fixed with the first push-pull rod 101, and the limiting portion (not shown) is inserted into the mounting hole 3031 of the shaft sleeve 303 to be in clearance arrangement with the mounting hole 3031. The tail push-pull arm 307 is integrally connected with the shaft sleeve 303 through threads, and through holes 3041 are formed at two ends of the tail push-pull arm 307 and used for connecting the penetrating screw with the movable piece 304. It will be appreciated that the trailing push-pull arm 307 may be a collar or other threaded connection, without limitation. The rotary shaft 305 penetrates the boss 303 to connect the tail fin 500 and the transmission unit 700. One end of the movable member 304 is provided with a through hole 3041, one end of the movable member 304 is connected with the tail push-pull arm 307 through the screw rod, it is to be understood that the screw rod is a push-pull stress point of the swing of the movable member 304, the other end of the movable member 304 is provided with a through hole 3041, and the other end of the movable member 304 is connected with the tail fin 500 through a ball head assembly, so as to apply an acting force to the tail fin 500, and further drive the tail fin 500 to turn, so as to change the corner of the tail fin 500.
It should be noted that, the connecting rod 301 and the shaft sleeve 303 are disposed in a clearance fit manner, when the limiting portion (not shown) of the connecting rod 301 is inserted into the mounting hole 3031, since the mounting hole 3031 is provided with a circular chute, the mounting hole 3031 is left with a gap, so that a movable space of the connecting rod 301 is provided, and further, a stress point of the connecting rod 301 is not limited to a region with the largest outer diameter of the connecting rod 301, the stress area is larger and is not easy to wear, and the stress point is closer to a tail shaft of the tail wing 300, is not easy to be blocked in a push-pull process, slides smoothly, and is prevented from being blocked too compactly when the model helicopter 1 moves.
Meanwhile, it can be understood that, by the cooperation of the connecting rod 301 and the shaft sleeve 303, the shape of the shaft sleeve 303 is a oval hole, the processing is basically that the dimension of the connecting rod 301 and the dimension of the shaft sleeve 303 are matched, the dimension precision can be controlled within the precision range of +/-0.002, and the processing is easy.
The push-pull shaft sleeve 303 module 30 further comprises a fixing unit 309, and the fixing unit 309 is sandwiched between the rotating shaft 305 and the shaft sleeve 303. The fixing unit 309 includes at least one fixing sleeve 3091, the at least one fixing sleeve 3091 is sleeved on the rotating shaft 305, and the at least one fixing sleeve 3091 is sleeved with at least one fixing ring 3093 for improving stability of the rotating shaft 305.
The transmission unit 700 comprises a bracket 701, a first hole position 7011 and a second hole position 7013 are formed in the bracket 701, one end of the second push-pull rod 103, which is far away from the first push-pull rod 101, penetrates through the first hole position 7011 through a ball part to be fixed on the bracket 701, and one end of the third push-pull rod 105, which is far away from the first push-pull rod 101, penetrates through the second hole position 7013 through a screw to be fixed on the bracket 701.
The working principle of the model helicopter 1 is as follows: the power generated by the motor 600 is output to the tail fin 500 after passing through the transmission unit 700, the push-pull rod module 10 and the push-pull shaft sleeve module 30, so as to adjust the rotation angle of the tail fin 500; the direction of force applied to the tail fin 500 is changed by the push-pull rod module 10, the connecting rod 301, the shaft sleeve 303 and the movable member 304, so as to adjust the steering angle of the tail fin 500.
Referring to fig. 6a, when the model helicopter 1 is in the first working state, i.e. when the shaft sleeve 303 abuts against the bracket 701, the connecting rod 301 is in clearance fit with the mounting hole 3031, and the connecting rod 301 and the shaft sleeve 303 are located on the same side.
Referring to fig. 6b, when the model helicopter 1 is in the second working state, that is, the shaft sleeve 303 is close to the tail wing 500, the connecting rod 301 is in clearance fit with the mounting hole 3031, and the connecting rod 301 and the shaft sleeve 303 are located on the same side.
Compared with the prior art, the push-pull rod module 10 and the push-pull shaft sleeve module 303 of the model helicopter 1 provided by the utility model adopt the arrangement of clearance fit of the kidney-round holes, and in the process that the first push-pull rod 101 pushes the shaft sleeve 303, the push-pull distance-changing mechanism provided by the utility model has the advantages of small number of parts, simple structure and convenience in maintenance, the push-pull stress point of the connecting rod 301 can be maximally close to the tail wing 500, the shaft sleeve 303 can be ensured to horizontally slide on the rotating shaft 305, the shaft sleeve 303 is ensured to slide smoothly, and further the push-pull distance-changing mechanism 100 is convenient for applying acting force to the tail wing 500 so as to change the corner of the tail wing 500. Meanwhile, through the cooperation setting of the connecting rod 301 and the shaft sleeve 303, the shape of the shaft sleeve 303 is a kidney-shaped hole, the processing is basically the dimensional cooperation of the connecting rod 301 and the shaft sleeve 303, the dimensional precision can be controlled in the precision range of 0.01, and the processing is easy. The model helicopter 1 can be suitable for model helicopters 1 with different sizes, and has simple structure and wide application range.
While the utility model has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the utility model.
Claims (10)
1. A push-pull pitch-changing mechanism for connecting a tail wing and a transmission unit of a model helicopter, comprising:
the push-pull rod module comprises a first push-pull rod and a second push-pull rod which are fixedly connected, and first connecting holes are formed in two ends of the first push-pull rod;
push-and-pull axle sleeve module includes:
the connecting rod and the shaft sleeve with the mounting hole sequentially penetrate through the first connecting hole and the mounting hole to be connected with the first push-pull rod;
the rotating shaft penetrates through the shaft sleeve and is used for connecting the tail wing and the transmission unit;
and one end of the movable piece is connected with the shaft sleeve, and the other end of the movable piece is connected with the tail fin and is used for applying acting force to the tail fin so as to change the corner of the tail fin.
2. The push-pull distance-changing mechanism according to claim 1, wherein the connecting rod comprises a limiting part and a fixing part which are oppositely arranged, the fixing part is provided with threads, and the fixing part is screwed into the first connecting hole through the threads and is fixed with the first push-pull rod.
3. The push-pull pitch mechanism according to claim 2, wherein the limiting portion is disposed in clearance fit with the mounting hole of the sleeve.
4. A push-pull pitch mechanism according to claim 3, wherein the sleeve is shaped as a waist-shaped circular hole, and the mounting hole is provided with a circular chute.
5. The push-pull pitch-changing mechanism according to claim 1, wherein the push-pull shaft sleeve module further comprises a tail push-pull arm, the tail push-pull arm is integrally connected with the shaft sleeve through threads, and through holes are formed in two ends of the tail push-pull arm and used for penetrating through the connecting rod to be connected with the movable piece.
6. The push-pull distance changing mechanism according to claim 1, wherein the push-pull rod module further comprises a second connecting piece, second connecting holes are formed in two ends of the second push-pull rod, the second connecting holes are mutually matched with the first connecting holes, and the second connecting piece sequentially penetrates through the first connecting holes and the second connecting holes to connect the first push-pull rod with the second push-pull rod.
7. The push-pull torque-varying mechanism according to claim 1, wherein the push-pull bushing module further comprises a fixing unit interposed between the rotating shaft and the bushing.
8. The push-pull torque converter according to claim 7, wherein the fixing unit comprises at least one fixing sleeve, the at least one fixing sleeve is sleeved on the rotating shaft, and the at least one fixing sleeve is sleeved with at least one fixing ring.
9. The push-pull distance-changing mechanism according to claim 1, wherein the push-pull rod module further comprises a third push-pull rod, the third push-pull rod is movably connected with the first push-pull rod and the second push-pull rod, the transmission unit comprises a support, a first hole site and a second hole site are formed in the support, one end of the second push-pull rod, far away from the first push-pull rod, penetrates through the first hole site through a ball part to be fixed on the support, and one end of the third push-pull rod, far away from the first push-pull rod, penetrates through the second hole site through a screw to be fixed on the support.
10. A model helicopter, comprising:
a tail wing;
the push-pull distance-changing mechanism is connected with the tail wing;
the transmission unit is connected with the push-pull distance-changing mechanism;
the motor drives the transmission unit and is connected with the transmission unit;
the main shaft is fixedly connected with the motor;
and the propeller is connected with the main shaft, wherein the push-pull distance-changing mechanism is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682606.2U CN220363460U (en) | 2023-03-30 | 2023-03-30 | Push-pull distance-changing mechanism and model helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320682606.2U CN220363460U (en) | 2023-03-30 | 2023-03-30 | Push-pull distance-changing mechanism and model helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220363460U true CN220363460U (en) | 2024-01-19 |
Family
ID=89519098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320682606.2U Active CN220363460U (en) | 2023-03-30 | 2023-03-30 | Push-pull distance-changing mechanism and model helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220363460U (en) |
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2023
- 2023-03-30 CN CN202320682606.2U patent/CN220363460U/en active Active
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Address after: 518000, Building 2, 302-1, No. 2688 Xiangshan Road, Tangjiawan Town, High tech Zone, Zhuhai City, Guangdong Province Patentee after: Guangdong Gutian Technology Innovation Co.,Ltd. Country or region after: China Address before: 528415, Floor 1-6, No. 25 South Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan Gutian Technology Innovation Co.,Ltd. Country or region before: China |