Disclosure of Invention
The invention provides a tail pipe connecting structure of an unmanned helicopter, and aims to solve the problems that the existing tail pipe connecting structure can increase the weight of the unmanned helicopter, invisibly increases energy loss, increases the energy utilization rate, is very complex, has high processing and assembling difficulty of related components and greatly reduces the assembling efficiency of operators.
The invention is realized in this way, a tail pipe connecting structure of an unmanned helicopter, which comprises a tail pipe and a fixing component for supporting the tail pipe, wherein the fixing component comprises a rack, a first frame, a second frame, a third frame and a plurality of bolts, the first frame and the second frame are arranged on the inner side wall of the rack in parallel, the rack is fixedly connected with the first frame and the second frame through the bolts, the third frame is arranged in parallel with the second frame, and the third frame is fixed on the outer side wall of the rack through the bolts;
a cross beam is arranged between the first frame and the second frame, and the first frame and the second frame are fixedly connected through the cross beam;
the tail pipe penetrates through the first frame, the second frame and the third frame, and the tail pipe and the rack are fixedly connected through the first frame, the second frame and the third frame.
Preferably, the first frame consists of a first upper frame, a first lower frame and a lower beam, the first lower frame is positioned below the first upper frame, and the first lower frame and the first upper frame are detachably connected through the bolt;
the lower beam is positioned below the first lower frame and fixedly connected with the first lower frame through the bolt, threaded holes are formed in the outer side walls of the front end and the rear end of the lower beam, and the lower beam and the rack are fixedly connected with the bolt through the threaded holes.
Preferably, the lower surface of the first lower frame is provided with a strip-shaped object;
the upper surface of the lower beam is provided with a slot matched with the strip, and the lower beam is connected with the first lower frame through the strip and the slot.
Preferably, the second frame is composed of a second upper frame and a second lower frame, the second lower frame is located below the second upper frame, and the second lower frame and the second upper frame are detachably connected by the bolt.
Preferably, the inner side wall of the cross beam is provided with an internal thread;
a threaded groove matched with the bolt is formed in the middle of the first lower frame, and an object placing hole matched with the cross beam is formed in the middle of the second lower frame;
one end of the cross beam is fixedly connected with the first lower frame through the bolt, the internal thread and the thread groove, and the other end of the cross beam is fixedly connected with the second lower frame through the bolt and the internal thread.
Preferably, the third frame is composed of a third upper frame, a third lower frame and a support rod, the third lower frame is located below the third upper frame, and the third lower frame and the third upper frame are detachably connected through the bolt;
a clamping groove matched with the supporting rod is formed below the third lower frame, and one end of the supporting rod is fixedly connected with the bolt through the clamping groove; the other end of the supporting rod is fixedly connected with the outer side wall of the rack through the bolt.
Preferably, a fixing piece is arranged at one end of the first upper frame, and a threaded hole is also formed in the fixing piece;
one end of the first lower frame is provided with a groove matched with the fixing piece, and one side of the first lower frame, which is close to the groove, is also provided with a threaded hole.
Preferably, the first upper frame and the first lower frame are connected through the bolt, and a circular cavity is formed in the middle of the first upper frame and the first lower frame;
the second upper frame and the second lower frame are connected through the bolts, and a circular cavity is formed in the middle of the second upper frame and the second lower frame;
the third upper frame and the third lower frame are connected through the bolts, and a circular cavity is formed in the middle of the third upper frame and the third lower frame.
Preferably, the first frame, the second frame and the third frame have the same height.
Preferably, a support is arranged above the rack, the support is welded with the rack, a threaded hole is also formed in the middle of the support, and the support is L-shaped;
the threaded hole formed in the support corresponds to the threaded hole formed in the lower beam.
Preferably, a support is arranged above the rack, the support is welded with the rack, a threaded hole is also formed in the upper surface of the support, and the support is L-shaped.
Compared with the prior art, the invention has the beneficial effects that: the first frame, the second frame and the third frame are arranged, so that the first frame, the second frame and the third frame are arranged on the rack through the bolts, the tail pipe is arranged on the first lower frame, the second lower frame and the third lower frame, and the first upper frame, the second upper frame and the third upper frame are clamped and fixed through the bolts, so that the tail pipe is limited, the device is simple and convenient to install, too much weight is not generated, the energy consumption of the unmanned aerial vehicle is reduced, the first lower frame and the lower beam can be quickly limited when being installed through the strip and the slot, and the double fixation can be carried out through the bolts and the threaded holes, so that the double fixation of the first frame greatly shares the weight of the tail pipe when the unmanned aerial vehicle flies, so that the tail pipe does not deviate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-7, a tail pipe connecting structure of an unmanned helicopter includes a tail pipe 1 and a fixing component 2 for supporting the tail pipe 1, where the fixing component 2 includes a frame 21, a first frame 22, a second frame 23, a third frame 24 and bolts 25, the first frame 22 and the second frame 23 are arranged in parallel on an inner side wall of the frame 21, the bolts 25 are provided in plurality, the frame 21 is fixedly connected with the first frame 22 and the second frame 23 through the bolts 25, the third frame 24 is arranged in parallel with the second frame 23, and the third frame 24 is fixed on an outer side wall of the frame 21 through the bolts 25;
a cross beam 26 is arranged between the first frame 22 and the second frame 23, and the first frame 22 and the second frame 23 are fixedly connected through the cross beam 26;
the tail pipe 1 penetrates through the first frame 22, the second frame 23 and the third frame 24, and the tail pipe 1 and the rack 21 are fixedly connected through the first frame 22, the second frame 23 and the third frame 24.
In the present embodiment, the top portions of the first lower frame 222, the second lower frame 232, and the third lower frame 242 are configured to be semi-circular arc shapes, and the first lower frame 222, the second lower frame 232, and the third lower frame 242 are all provided with the grooves 229, the first upper frame 221, the second upper frame 231, and the third upper frame 241 are also configured to be semi-circular arc shapes, and the first upper frame 221, the second upper frame 231, and the third upper frame 241 are the same in structure, so as to facilitate the installation of the tail pipe 1, on the other hand, to have a better effect of bearing the gravity, by providing the first frame 22, the first frame 22 greatly bears the gravity of the tail pipe 1, so that the tail pipe 1 is not deviated, by providing the second frame 23, the second frame 23 is installed, to share the gravity of the first frame 22, to prevent the first frame 22 from bearing the excessive gravity, so as to deform, on the other hand, to maintain the, make the tail-rotor can not exert an influence when rotating or the air current undulant, through setting up third frame 24, make installation third frame 24, the shake that produces the tail-rotor passes through the effectual transmission of third frame 24 and gives frame 21, thereby make the tail-rotor rotatory more stable, the effect of balanced reaction moment is better, through setting up crossbeam 26, make first frame 22 and second frame 23 share the gravity that bears tail pipe 1 through the connection of crossbeam 26, make tail pipe 1 can not lead to the skew because of the complicated condition of external flight, thereby influence the balance of tail pipe 1.
In this embodiment, the lower beam 223 is installed on the inner side wall of the frame 21 by the bolt 25 and the screw hole 224, then the first lower frame 222 and the lower beam 223 are fixed by the bolt 25 and the bar 225, then the second lower frame 232 is fixed on the inner side wall of the frame 21 by the bolt 25, at the same time, one end of the cross beam 26 is inserted into the object placing hole 233 in the second lower frame 232 and is fixed by the bolt 25, the other end of the cross beam 26 is abutted against the first lower frame 222 and is fixed by the bolt 25 and the screw groove 227, one ends of the third lower frame 242 and the support bar 243 are installed by the card slot 244 and the bolt 25, then the other end of the support bar 243 is fixed on the outer side wall of the frame 21 by the bolt 25, after the installation, the tail pipe 1 is placed at the semicircular arc of the first lower frame 222, the second lower frame 232 and the third lower frame 242, the first upper frame 221, the second upper frame 231, and the third upper frame 241 are fastened to the semicircular arcs of the first lower frame 222, the second lower frame 232, and the third lower frame 242 by bolts 25, respectively, so that the tail pipe 1 is firmly fixed.
Further, the first frame 22 is composed of a first upper frame 221, a first lower frame 222 and a lower beam 223, the first lower frame 222 is located below the first upper frame 221, and the first lower frame 222 and the first upper frame 221 are detachably connected by a bolt 25;
the lower beam 223 is located below the first lower frame 222 and is fixedly connected with the first lower frame 222 through a bolt 25, the outer side walls of the front and rear ends of the lower beam 223 are provided with a threaded hole 224, and the lower beam 223 and the frame 21 are fixedly connected through the threaded hole 224 and the bolt 25.
In this embodiment, the first upper frame 221, the first lower frame 222 and the lower beam 223 are arranged, so that the lower beam 223 is firstly installed on the inner side wall of the frame 21 through the bolt 25 and the threaded hole 224, then the first lower frame 222 and the lower beam 223 are fixed through the bolt 25, the first upper frame 221 and the first lower frame 222 are connected together through the bolt 25 to perform first heavy fixation, the tail pipe 1 is limited, after the frame and the lower beam are matched for use, the weight received by the tail pipe 1 is decomposed and uniformly transmitted to the frame 21, so that the tail pipe 1 cannot generate deviation, and meanwhile, through the fixation of the bolt 25, the disassembly and the installation are convenient, and certain time is saved for an operator.
Further, a bar 225 is disposed on the lower surface of the first lower frame 222;
the upper surface of the lower beam 223 is provided with a slot 226 matching with the bar 225, and the lower beam 223 and the first lower frame 222 are connected through the bar 225 and the slot 226.
In the present embodiment, the strip 225 and the slot 226 are provided, so that the strip 225 is inserted into the slot 226 to facilitate the installation of the first lower frame 222 and the lower beam 223 to be quickly limited, and the installation of the tail pipe 1 is ensured by double fixing of the bolt 25, and the weight of the tail pipe 1 is greatly dispersed on the first lower frame 222, the lower beam 223 and the frame 21, so that the tail pipe 1 does not deviate in the complicated external airflow.
Further, the second frame 23 is composed of a second upper frame 231 and a second lower frame 232, the second lower frame 232 is located below the second upper frame 231, and the second lower frame 232 and the second upper frame 231 are detachably connected by bolts 25.
In the present embodiment, the second upper frame 231 and the second lower frame 232 are provided, so that the tail pipe 1 is fixed to the second upper frame 231 and the second lower frame 232 by the bolts 25, and the tail pipe 1 is secondarily fixed, thereby sharing the gravity of the first frame 22, preventing the deformation of the first frame 22 due to the excessive gravity, and maintaining the balance of the tail pipe 1 so that the tail rotor does not affect the rotation or the fluctuation of the airflow.
Further, an inner side wall of the cross beam 26 is provided with an inner thread 261;
a thread groove 227 matched with the bolt 25 is formed in the middle of the first lower frame 222, and an object placing hole 233 matched with the cross beam 26 is formed in the middle of the second lower frame 232;
one end of the cross member 26 is fixedly coupled to the first lower frame 222 by the bolt 25, the female screw 261 and the screw groove 227, and the other end of the cross member 26 is fixedly coupled to the second lower frame 232 by the bolt 25 and the female screw 261.
In the present embodiment, the inner side wall of the cross beam 26 is provided with the internal thread 261, the first lower frame 222 is provided with the thread groove 227, and the second lower frame 232 is provided with the article placing hole 233, so that one end of the cross beam 26 is inserted into the article placing hole 233 in the second lower frame 232 and is fixed by the bolt 25, and the other end of the cross beam 26 abuts against the first lower frame 222 and is fixed by the bolt 25 and the thread groove 227, so that the second frame 23 shares the weight of the first frame 22 through the cross beam 26, the firmness of the first frame 22 is enhanced, the tail pipe 1 is further prevented from shifting in the complicated external airflow, and the balance of the tail pipe 1 is maintained.
Further, the third frame 24 is composed of a third upper frame 241, a third lower frame 242 and a support rod 243, the third lower frame 242 is located below the third upper frame 241, and the third lower frame 242 and the third upper frame 241 are detachably connected by a bolt 25;
a clamping groove 244 matched with the support rod 243 is formed below the third lower frame 242, and one end of the support rod 243 is fixedly connected with the bolt 25 through the clamping groove 244; the other end of the support bar 243 is fixedly connected to the outer sidewall of the frame 21 by a bolt 25.
In the present embodiment, the third upper frame 241, the third lower frame 242, the locking groove 244, and the support rod 243 are provided, so that one end of the third lower frame 242 and the support rod 243 is mounted through the locking groove 244 and the bolt 25, and then the other end of the support rod 243 is fixed on the outer sidewall of the frame 21 through the bolt 25, so that the tail pipe 1 is limited by the third upper frame 241 and the bolt 25 and the third lower frame 242, and the third fastening is performed, and the vibration generated by the tail rotor in the tail pipe 1 is effectively transmitted to the frame 21 through the support rod 243 and the third lower frame 242, so that the rotation of the tail rotor is more stable, and the effect of balancing the reactive torque is better.
Further, a fixing member 228 is disposed at one end of the first upper frame 221, and a threaded hole 224 is also formed in the fixing member 228;
one end of the first lower frame 222 defines a groove 229 adapted to the fixing element 228, and one side of the first lower frame 222 near the groove 229 also defines a threaded hole 224.
In this embodiment, when the first lower frame 222 and the first upper frame 221 are connected, the screw hole 224 of the first lower frame 222 is overlapped with the screw hole 224 of the fixing member 228, so that the first lower frame 222 and one end of the first upper frame 221 are connected through the groove 229, the fixing member 228 and the bolt 25, and when the bolt 25 is not completely loosened, the first lower frame 222 and one end of the first upper frame 221 are rotatably connected, so that when the tail pipe 1 is disassembled, the tail pipe 1 is disassembled without disassembling the first lower frame 222 and the first upper frame 221, directly by disassembling the bolt 25 at one end and rotating the first upper frame 221 or the first lower frame 222, thereby conveniently taking out the tail pipe 1.
Further, the first upper frame 221 and the first lower frame 222 are connected by bolts 25, and a circular cavity is formed at the middle position;
the second upper frame 231 and the second lower frame 232 are connected by bolts 25, and a circular cavity is also formed at the middle position;
the third upper frame 241 and the third lower frame 242 are connected by bolts 25, and a circular cavity is also formed at an intermediate position.
In the present embodiment, the first upper frame 221 and the first lower frame 222 form a cavity through the connection center of the bolt 25, so that the first frame 22, the second frame 23, and the third frame 24 triple-fix the outer side wall of the tail pipe 1 through the circular cavity, so that the tail pipe 1 is simple and convenient to mount, and has the characteristics of firm fixation and no deviation.
Further, the first frame 22, the second frame 23, and the third frame 24 are the same in height.
In this embodiment, through setting up first frame 22, second frame 23 and third frame 24 height the same for first frame 22, second frame 23 and third frame 24 can not produce inclination when installing tail pipe 1, thereby prevent the tail rotor during operation in the tail pipe 1, accelerate bearing structure's damage through inclination and shake, make unmanned aerial vehicle security performance reduce.
Further, a support 27 is arranged above the frame 21, the support 27 is welded to the frame 21, a threaded hole 224 is also formed in the upper surface of the support 27, and the support 27 is L-shaped.
In the present embodiment, by providing the support 27, the lower beam 223 is first placed on the inner sidewall of the upper surface of the support 27, the screw hole 224 on the lower beam 223 corresponds to the screw hole 224 on the support 27, and then the support 27 is connected by the bolt 25, so that the lower beam 223 is firmly mounted on the frame 21 after the lower beam 223 and the support 27 are mounted on the frame 21;
be the L type through setting up support 27 for the support 27 of L type has certain stability, makes the underbeam 223 when rocking, through the support 27 of L type, and the dispersion is trembled, thereby guarantees that tail pipe 1 during operation is more stable.
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 invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.