WO2020253621A1

WO2020253621A1 - Support frame fitting structure

Info

Publication number: WO2020253621A1
Application number: PCT/CN2020/095691
Authority: WO
Inventors: 李坤煌; 和瑞江; 周理嘉; 陈泽楠
Original assignee: 深圳高度创新技术有限公司
Priority date: 2019-06-18
Filing date: 2020-06-12
Publication date: 2020-12-24
Also published as: CN110271684A

Abstract

The present invention relates to the technical field of unmanned aerial vehicles, and particularly relates to a support frame fitting structure, comprising: a housing provided with a fastening block at a base thereof; a support frame, wherein a mounting portion engageable with the fastening block is provided at a top end of the support frame, and insertion connection holes are provided at corresponding positions of the mounting portion and the fastening block, respectively; and a quick release pin capable of being inserted into the insertion connection holes, wherein the fastening block is connected and fastened to the mounting portion via the quick release pin, the quick release pin is provided with a button, and the quick release pin is released from the insertion connection holes when the button is pressed, such that the mounting portion is released from the fastening block. The support frame fitting structure provided by the present application enables the following operations when the support frame needs to be mounted: first fitting the fastening block at the mounting portion, aligning the insertion connection holes of the two, and inserting the quick release pin into the insertion connection holes, such that the mounting portion is fastened to the fastening block. In addition, the quick release pin is provided with the button, and a press on the button enables removal of the quick release pin from the insertion connection holes , such that the support frame is released from the housing, thereby achieving quick and easy mounting and disassembly of the support frame.

Description

Support frame assembly structure

Technical field

The invention belongs to the technical field of unmanned aerial vehicles, and particularly relates to a support frame assembly structure.

Background technique

Due to its many advantages such as vertical lifting, hovering gaze, and strong maneuverability, UAVs have become effective means for image collection, intelligence collection and reconnaissance requirements, and their applications are becoming more and more extensive, such as the application of rescue activities and fire fighting. In many applications, it is often necessary to have a support frame under the fuselage to carry or install other additional components. The existing support frame is more complicated to assemble with the drone, and the disassembly and assembly operations are more complicated, and there are many operations. inconvenient.

technical problem

The purpose of the present invention is to provide a support frame assembly structure, which aims to solve the technical problems of complex support frame assembly structure and complicated disassembly and assembly operations in the prior art.

Technical solutions

In order to achieve the above objective, the technical solution adopted by the present invention is: a support frame assembly structure, including:

The cabinet has a fixed block at the bottom;

The support frame has a mounting portion at the top end that cooperates with the fixing block, the fixing block is adapted to be inserted into the mounting portion, and corresponding positions of the mounting portion and the fixing block are respectively provided with insertion holes;

The quick plug is inserted in the insertion hole, the fixing block is connected and fixed to the mounting part by the quick plug, the quick plug is provided with a button, and the quick plug can be removed from the button when the button is pressed. The insertion hole is disengaged, so that the mounting part can be disengaged from the fixing block.

Further, the support frame includes a horizontally arranged bottom plate, a mounting block, and a connecting piece connected between the bottom plate and the mounting block, the top of the mounting block is formed with the mounting portion; the fixing block has A positioning protrusion protruding downward, the mounting portion is recessed with a positioning groove adapted to the positioning protrusion, the positioning protrusion is adapted to be inserted into the positioning groove, and the positioning protrusion The insertion holes are respectively opened at the corresponding positions of the upper and the mounting portion.

Further, a fixed block is respectively provided at the bottom of the casing near the front and rear ends, the supporting frame is provided with four connecting pieces and two mounting blocks, and the top surface of each mounting block Two mounting parts are respectively formed, two connecting pieces are connected between each mounting block and the bottom plate, and the space enclosed by the four connecting pieces is approximately rectangular.

Further, a front side or a rear side of the mounting block is provided with an assembly notch communicating with the positioning groove.

Further, the two mounting blocks close to the front end of the cabinet and the two mounting blocks close to the rear end of the cabinet are provided with the assembly notches on the opposite sides.

Further, the connecting piece is perpendicular to the bottom plate.

Further, the connecting piece is a hexagon socket screw, the hexagon socket screw includes a head and a rod part provided with an external thread, the rod part is threadedly connected with the bottom plate and the mounting block, and the head Conflict with the bottom surface of the bottom plate.

Further, a clamping plate is fixed at the bottom of the mounting block, and the hexagon socket screw passes through the clamping plate and is screwed to the mounting block.

Further, the bottom plate is provided with a plurality of through holes.

Further, the plurality of through holes includes a plurality of first through holes symmetrically arranged along the length direction of the bottom plate and a plurality of second through holes symmetrically arranged along the width direction of the bottom plate.

Beneficial effect

The beneficial effects of the present invention: in the support frame assembly structure of the present invention, since the mounting part of the support frame and the fixed block at the bottom of the cabinet are connected by quick bolts, when the support frame needs to be installed, the fixing block is assembled behind the mounting part to make The insertion holes of the two are aligned, insert the quick plug into the insertion hole, the mounting part is fixed with the fixing block, so that the support frame is installed at the bottom of the casing, and the quick plug is equipped with a button, which can be pressed after the button is pressed Pull out from the plug hole to make the support frame detach from the casing, and the disassembly and assembly operation of the support frame is very convenient.

Description of the drawings

In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only of the present invention. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.

FIG. 1 is a schematic structural diagram of a drone provided by an embodiment of the present invention;

Figure 2 is a schematic side view of the structure of the UAV shown in Figure 1;

Fig. 3 is a partial three-dimensional structure diagram of the UAV shown in Fig. 2;

Fig. 4 is an enlarged schematic diagram of part A in Fig. 3;

Figure 5 is a schematic side view of the structure of the support frame assembly structure in the UAV shown in Figure 1;

Fig. 6 is a three-dimensional structural diagram of the supporting frame assembly structure shown in Fig. 5;

Fig. 7 is an enlarged schematic diagram of part B in Fig. 6;

Figure 8 is a partial exploded schematic diagram of the UAV shown in Figure 1;

Fig. 9 is an enlarged schematic diagram of part C in Fig. 8;

10 is a schematic side view of the structure of the casing in the support frame assembly structure shown in FIG. 5;

Fig. 11 is a partial exploded schematic diagram of the assembly structure of the support frame shown in Fig. 5.

Among them, the reference signs in the figure:

10—UAV 11—Chassis 12—Landing gear

101-groove 100-fixed block 110—Locating bump

111-Cooperate with slope 112-Through hole 120-Connecting Department

20-Support frame 210-Bottom plate 212-Through hole

220—mounting block 221—plug hole 222—positioning groove

223—Assembly inclined surface 230—Hexagon socket screw 240—Plywood

300—Quick latch.

The best mode of the invention

Type here a paragraph describing the best mode of the invention.

Embodiments of the invention

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, not It indicates or implies that the pointed device or element must have a specific orientation, be configured and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more than two, unless specifically defined otherwise.

In the present invention, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

As shown in FIGS. 1 to 2, the support frame 20 assembly structure provided by the embodiment of the present invention is applied to an unmanned aerial vehicle 10, such as an unmanned aerial vehicle 10 with a fire fighting function. As shown in FIGS. 2 to 4, the assembly structure of the support frame 20 includes a casing 11, a support frame 20 and a quick plug 300. The bottom surface of the casing 11 is provided with a fixed block 100, and the casing 11 is provided with a controller and a battery. The top end of the support frame 20 is provided with a mounting part. The mounting block 220 is used in conjunction with the fixing block 100. The corresponding positions of the mounting part and the fixing block 100 are respectively provided with insertion holes 221. The axis of the insertion holes 221 can be set parallel to the horizontal direction. . The quick plug 300 is inserted into the insertion hole 221, and the fixing block 100 is connected and fixed with the installation part through the quick plug 300. In this way, the support frame 20 is fixed to the casing 11 by the quick plug 300, and the installation of the support frame 20 is completed; The latch 300 is provided with a button. After the button is pressed, the quick latch 300 can be disengaged from the insertion hole 221, thereby disengaging the mounting portion from the fixing block 100, so that the support frame 20 can be removed from the bottom of the casing 11, and the support frame 20 The disassembly and assembly operations are very convenient.

In the assembling structure of the support frame 20 provided in this embodiment, since the mounting portion of the support frame 20 is connected to the fixing block 100 at the bottom of the casing 11 through a quick-release pin 300, when the support frame 20 needs to be installed, the fixing block 100 is assembled to the mounting portion After that, the insertion holes 221 of the two are aligned, the quick plug 300 is inserted into the insertion hole 221, the mounting part is fixed to the fixing block 100, so that the support frame 20 is installed on the bottom of the casing 11, and the quick plug 300 is provided with a button After pressing the button, the quick-release pin 300 can be pulled out from the insertion hole 221, so that the support frame 20 can be separated from the casing 11, and the disassembly and assembly operation of the support frame 20 is very convenient.

The quick bolt 300 is a standard part. The quick bolt 300 includes a mandrel, a bolt shaft, a bushing, a return spring and a button. The mandrel is slidably embedded in the bolt shaft, and the bolt shaft is provided with a receiving hole near the front end. A steel ball is contained inside, and the front end of the mandrel is provided with a beveled groove. In a natural state, a part of the steel ball extends from the bolt shaft, the sleeve is fixed to the rear end of the bolt shaft, and the button is connected to the rear end of the mandrel and extends from The outer peripheral walls of the opposite ends of the shaft sleeve, the core shaft and the bolt shaft are respectively provided with limit tables, and the return spring is clamped between the two limit tables and is accommodated between the core shaft and the bolt shaft. When using the quick plug 300, insert the pin shaft into the plug hole 221, and the steel ball abuts against the wall of the plug hole 221, so that the quick plug 300 is fixed relative to the wall of the plug hole 221, and the quick plug 300 needs to be pulled out When the button is pressed out, the core shaft moves forward a certain distance, the steel ball falls into the inclined groove, and the steel ball is contained in the receiving hole and the inclined groove. At this time, the steel ball does not contact the wall of the insertion hole 221 or only a small amount exists. The contact area can easily pull out the quick plug 300 from the plug hole 221. The outer wall of the shaft sleeve may be provided with a handle to facilitate the force application of the quick plug 300 plugging operation.

As shown in Figures 5, 10 and 11, the top of the fixed block 100 has a connecting portion 120, and the fixed block 100 and the connecting portion 120 are integrally formed. The bottom of the casing 11 can be fixed with a connecting portion 120 by screws; The bottom surface is recessed to form a groove 101 with a width adapted to the connecting portion 120, so that the space under the casing 11 occupied by the fixing block 100 is reduced, and thereby the assembly space between the support frame 20 and the casing 11 is larger.

As shown in FIG. 6 and FIG. 7, the fixing block 100 may be provided with a hollow structure or a through hole. For example, the fixing block 100 is provided with a through hole passing through the front and rear, so that the weight of the fixing block 100 can be reduced.

In one embodiment, as shown in FIGS. 2 and 5 to 8, the support frame 20 includes a bottom plate 210, a mounting block 220, and a connecting piece. The bottom plate 210 may be a carbon fiber board, the bottom plate 210 may be horizontally arranged, and the bottom plate 210 may be a rectangular plate, and the connecting pieces may be arranged perpendicular to the bottom plate 210, that is, the connecting pieces are arranged vertically. The mounting block 220 is formed with a mounting portion, and the connecting piece is connected between the bottom plate 210 and the mounting block 220, so that there is a bearing space between the bottom surface of the casing 11 and the bottom plate 210 for installing and bearing external components; the fixing block 100 has a downwardly protruding Positioning protrusion 110, the mounting portion is recessed to form a positioning groove 222 adapted to the positioning protrusion 110, the positioning protrusion 110 is adapted to be inserted into the positioning groove 222, the positioning protrusion 110 and the groove wall of the positioning groove 222 Inserting holes 221 are respectively opened at corresponding positions of, and when the quick plug 300 is inserted into the plug hole 221, the quick plug 300 passes through the setting groove 222.

In one embodiment, as shown in FIGS. 5 to 8, the support frame 20 is provided with two mounting blocks 220, and the top surface of each mounting block 220 is formed with two mounting parts, a total of four mounting parts, and the connecting parts are correspondingly arranged There are four. Two connecting pieces are connected between each mounting block 220 and the bottom plate 210. The space enclosed by the four connecting pieces is roughly rectangular. The supporting frame 20 is frame-shaped as a whole and has four sides and top openings. The fixing block 100 There are two, two fixed blocks 100 are respectively arranged at the bottom of the casing 11 near the front and rear ends, and the bottom surface of each fixed block 100 is protrudingly formed with two positioning protrusions 110, namely the front end and the rear end of the support frame 20. There are two mounting parts, the two mounting parts at the front end are arranged symmetrically, and the two mounting parts at the rear end are also arranged symmetrically. The top surface of each mounting part is recessed to form a positioning groove 222. In one embodiment, the longitudinal section of the positioning groove 222 is trapezoidal, and the longitudinal section of the corresponding positioning protrusion 110 is trapezoidal. It is understandable that the longitudinal section of the positioning protrusion 110 may also be formed in other shapes, such as a rectangle.

In one embodiment, as shown in FIGS. 6 to 9, the front or rear side of the mounting block 220 is provided with an assembly notch communicating with the positioning groove 222. That is to say, the top surface and one side surface of the positioning groove 222 are respectively opened, and the assembly notch on the side facilitates the positioning protrusion 110 of the fixing block 100 to fit into the positioning groove 222, which facilitates the connection between the fixing block 100 and the mounting block 220. Assembly operation. In one embodiment, the two mounting blocks 220 close to the front end of the casing 11 and the two mounting blocks 220 close to the rear end of the casing 11 are provided with assembly notches on the opposite sides, that is, the two mounting blocks 220 at the front end are assembled The opening direction of the notch is opposite to the opening direction of the assembly notch of the two mounting blocks 220 at the rear end. This facilitates the positioning of the fixing block 100 during installation, and facilitates the quick connection of the positioning protrusion 110 of each positioning block to the corresponding positioning groove 222 It is not easy to slip off during alignment.

The longitudinal section of the positioning groove 222 is trapezoidal. The groove wall of the positioning groove 222 opposite to the assembly notch can be set as an inclined groove wall. Correspondingly, an assembly inclined surface 223 adapted to the groove wall is formed on the corresponding side of the fixing block 100. In this way, the three groove walls of the positioning groove 222 all form assembling slopes 223, and the three corresponding sides of the fixing block 100 form mating slopes 111. Each of the assembling slopes 223 fits with the corresponding mating slope 111. In this way, the fixing block 100 is installed The slopes can be used to generate sliding movement to fit the mounting block 220 to achieve the purpose of quickly and accurately aligning the insertion holes of the two.

In one embodiment, as shown in FIGS. 1 to 4, the bottom plate 210 is arranged horizontally, the drone 10 is a drone for fire fighting, and both sides of the drone 10 are equipped with fire extinguishing bombs. The bottom of the UAV 10 is provided with a landing gear 12. The bottoms of the two sides of the landing gear 12 are respectively connected with horizontal support rods. Two parallel support rods are connected with two cross rods. The support frame is formed with two cross rods. Card bit.

As shown in Figure 4, Figure 8 and Figure 9, the bottom of the mounting block 220 is fixed with a clamping plate 240. The hexagon socket screw 230 passes through the clamping plate 240 and is screwed to the mounting block 220. An adapter is formed between the clamping plate 240 and the bottom plate 210. The clamping position of the cross beam of the landing gear 12, that is, the cross beam of the landing gear 12 is clamped between the splint 240 and the bottom plate 210. The splint 240 is substantially a rectangular plate, and the splint 240 is provided with threaded holes corresponding to the threaded holes of the mounting block 220. The splint 240 can be a carbon fiber board to reduce the overall weight.

In one embodiment, as shown in FIGS. 5-7, the connecting member adopts a hexagon socket screw 230. The hexagon socket screw 230 includes a head with a hexagon socket and a rod with an external thread on the outer peripheral wall. The bottom plate 210 and the mounting The corresponding positions of the block 220 are respectively provided with threaded holes, the rods pass through the threaded holes of both, that is, the rods are screwed and fixed to the bottom plate 210 and the mounting block 220 respectively, and the head abuts against the bottom surface of the bottom plate 210. The four hexagon socket screws 230 penetrate through the four corners of the bottom plate 210 respectively.

In one embodiment, as shown in FIG. 8, the bottom plate 210 is provided with a plurality of through holes 212, and the through holes 212 can reduce the weight of the bottom plate 210, thereby reducing the weight of the support frame 20. In one embodiment, the plurality of through holes 212 include a plurality of first through holes symmetrically arranged along the length direction of the bottom plate 210 and a plurality of second through holes symmetrically arranged along the width direction of the bottom plate 210, for example, the bottom plate 210 is rectangular as a whole. , The bottom plate 210 is provided with six through holes, and the six through holes form a m-shaped hollow structure in the middle of the bottom plate 210.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention shall be included in the protection of the present invention. Within range.

Industrial applicability

Type a paragraph describing industrial applicability here.

Sequence Listing Free Content

Type here the free content description paragraph of the sequence listing.

Claims

A supporting frame assembly structure, characterized in that it comprises:

The cabinet has a fixed block at the bottom;

The support frame has a mounting portion at the top end that cooperates with the fixing block, the fixing block is adapted to be inserted into the mounting portion, and corresponding positions of the mounting portion and the fixing block are respectively provided with insertion holes;

The quick plug is inserted in the insertion hole, the fixing block is connected and fixed to the mounting part by the quick plug, the quick plug is provided with a button, and the quick plug can be removed from the button when the button is pressed. The insertion hole is disengaged, so that the mounting part can be disengaged from the fixing block.
The support frame assembly structure according to claim 1, wherein the support frame includes a horizontally arranged bottom plate, a mounting block, and a connector connected between the bottom plate and the mounting block, and the mounting block The top part is formed with the mounting part; the fixing block has a positioning protrusion protruding downward, the mounting part is recessed and formed with a positioning groove adapted to the positioning protrusion, and the positioning protrusion is adapted for insertion It is arranged in the positioning groove, and the corresponding positions of the positioning protrusion and the mounting portion are respectively provided with the insertion holes.
The support frame assembly structure according to claim 2, characterized in that: the bottom of the casing near the front and rear ends are respectively provided with a fixed block, and the support frame is provided with four connecting members and two fixed blocks. In the mounting block, two mounting parts are respectively formed on the top surface of each mounting block, two connecting pieces are connected between each mounting block and the bottom plate, and four connecting pieces The enclosed space is roughly rectangular.
The support frame assembly structure according to claim 3, wherein the front side or the rear side of the mounting block is provided with an assembly notch communicating with the positioning groove.
The support frame assembly structure according to claim 4, wherein the two mounting blocks close to the front end of the casing and the two mounting blocks close to the rear end of the casing are opened on opposite sides. There is the assembly gap.
The support frame assembly structure according to claim 2, wherein the connecting member is perpendicular to the bottom plate.
The support frame assembly structure according to claim 2, wherein the connecting member is a hexagon socket screw, and the hexagon socket screw includes a head and a rod part provided with an external thread, and the rod part is connected to the The bottom plate and the mounting block are threadedly connected, and the head abuts against the bottom surface of the bottom plate.
7. The support frame assembly structure according to claim 7, wherein a clamping plate is fixed at the bottom of the mounting block, and the hexagon socket screw passes through the clamping plate and is screwed to the mounting block.
The support frame assembly structure according to claim 1, wherein the bottom plate is provided with a plurality of through holes.
The support frame assembly structure according to claim 9, wherein the plurality of through holes include a plurality of first through holes symmetrically arranged along the length direction of the bottom plate and a plurality of first through holes symmetrically arranged along the width direction of the bottom plate. A plurality of second through holes.