Hood assembling and positioning structure and helicopter

Abstract

The utility model provides a head cover assembling and positioning structure and a helicopter, which are used for installing a head cover of the helicopter to a rack of the helicopter, and comprise a fixed column fixed on the head cover; the guide piece is fixed on the rack, a guide groove and a fixing hole located in the tail end of the guide groove are formed in the guide piece, and the guide groove is configured to guide the fixing column to enter the fixing hole. According to the hood assembling and positioning structure, the hood and the rack can be assembled more easily, and the risk that the hood cracks is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned helicopter field especially, it relates to a head cover assembly positioning structure and use the head cover assembly positioning structure of helicopter. BACKGROUND

[0002] At present, the application of unmanned helicopter has become increasingly widespread, and its application fields include agriculture, logistics, aerial photography of film and television, security monitoring, disaster relief, environmental monitoring, military and the like.

[0003] The unmanned helicopter generally comprises a frame, a head cover (or a shell), a propeller and a foot stand and the like. The frame carries a battery, a gimbal and the like, the head cover covers the frame, the propeller is installed on the frame through an opening formed on the head cover, and the foot stand is connected to the frame below. In the prior art, the head cover is generally fixed on the frame through a cylindrical buckle and a rubber ring. First, the rubber ring is fixed on the head cover, and a cylindrical fixing rod is fixed on the frame. When assembling, the head cover is pulled outward, and the rubber ring is buckled to the fixing rod. However, the head cover is generally made of glass steel material and has a certain thickness, and the toughness is poor. When the head cover is frequently pulled outward, it is easy to break at the position of the rubber ring.

[0004] Therefore, it is urgent to provide a head cover assembly positioning structure and a helicopter using the same to solve one or more of the above technical problems. SUMMARY

[0005] The utility model discloses a head cover assembly positioning structure and a helicopter using the same to solve at least one of the above problems.

[0006] In one aspect, the utility model provides a head cover assembly positioning structure for the head cover of a helicopter to be installed to the frame of the helicopter, and the head cover assembly positioning structure comprises:

[0007] A fixing column fixed on the head cover; and

[0008] A guide piece fixed on the frame, wherein the guide piece is provided with a guide groove and a fixing hole at the end of the guide groove,

[0009] The guide groove is configured to guide the fixing column into the fixing hole.

[0010] In one embodiment, the end of the guide groove away from the fixing hole is flared.

[0011] In one embodiment, the guide groove is flared as a whole, comprising a large end and a small end, and the fixing hole is located at the small end.

[0012] In an embodiment, the fixing column and the fixing hole are in loose fit.

[0013] In an embodiment, the guiding groove extends in a direction substantially perpendicular to the central axis of the fixing hole.

[0014] In an embodiment, the fixing column is fixed to the head cover by screwing and / or sticking, and / or the guiding member is fixed to the rack by screwing and / or sticking, and / or the guiding member is fixed to the rack at the bottom of the fixing hole by screwing.

[0015] In another aspect, the utility model also provides a kind of helicopter, the helicopter includes:

[0016] Rack;

[0017] Head cover, configured to cover the rack; and

[0018] Head cover assembly positioning structure as described above.

[0019] In an embodiment, the head cover assembly positioning structure further includes mounting and fixing structure, and the mounting and fixing structure includes:

[0020] Fixing member, which is detachably mounted on the head cover; and

[0021] Accommodating member, which is fixed to the rack and configured to accommodate and hold the fixing member.

[0022] In an embodiment, the mounting and fixing structure further includes elastic pressing column, the accommodating member is provided with an accommodation space and a first opening communicating with the accommodation space towards the head cover, the first opening is narrowed relative to the accommodation space to form a shoulder on both sides of the first opening, the head cover is provided with a second opening corresponding to the accommodating member, the fixing member is provided with a containing space, a through hole is provided on the side wall of the fixing member to accommodate a ball, a third opening is provided on the side of the fixing member away from the accommodating member, the elastic pressing column is accommodated in the containing space and exposed through the third opening, a concave-convex structure corresponding to the ball is provided on the side wall of the elastic pressing column, the concave-convex structure is switched between a first position and a second position by operating the elastic pressing column, in the first position, the concave-convex structure makes the ball protrude from the side wall to block the fixing member by the shoulder to hold in the accommodating member, and in the second position, the concave-convex structure allows the ball to retreat into the through hole to allow the fixing member to be pulled out of the accommodating member and the second opening.

[0023] In an embodiment, the elastic pressing column comprises a pressing column body and an elastic piece, one end of the pressing column body is recessed towards the inside of the pressing column body to form a receiving hole, one end of the elastic piece is received in the receiving hole, and the other end abuts against the bottom wall of the accommodating space opposite to the third opening.

[0024] Compared with the prior art, the head cover assembly positioning structure provided by the embodiment of the utility model has the advantages that when the head cover is assembled to the rack, the guide groove on the guide piece is flared, so that the head cover and the rack do not need to be aligned, and the assembly is simple, and since the fixed column and the fixed hole are loosely matched, the fixed column only needs to be slightly lifted to leave the fixed hole when disassembled. Therefore, even if the head cover is frequently disassembled and assembled, the strength of the head cover will not be affected, and the head cover will not have the risk of cracking. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, wherein:

[0026] Figure 1 is a three-dimensional schematic view of a helicopter shown in the embodiment of the utility model;

[0027] Figure 2 is Figure 1 is a three-dimensional schematic view of the helicopter shown in the embodiment of the utility model from an angle after the head cover and the rack are separated;

[0028] Figure 3 is Figure 1 is a schematic view of the front end of the helicopter shown in the embodiment of the utility model after explosion;

[0029] Figure 4 is Figure 1 is a sectional view of the helicopter shown in the embodiment of the utility model at the position of the head cover assembly positioning structure;

[0030] Figure 5 is Figure 1 is a schematic view of the rear end of the helicopter shown in the embodiment of the utility model after explosion.

[0031] Figure 6 is Figure 1 is a sectional view of the helicopter shown in the embodiment of the utility model at the position of the installation fixing structure. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0033] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic view of a helicopter shown in the embodiments of the present application, Figure 2 is Figure 1 a schematic view of a head cover and a frame of the helicopter shown in the embodiments of the present application. The helicopter 10 comprises a frame 101 and a head cover 102. Further, the helicopter 10 can further comprise a foot stand 103 and a propeller (not shown in the figure). In the present embodiment, the head cover 102 covers the frame 101, the foot stand 103 is connected to the frame 101 and is located below the frame 101, and the propeller is connected to the frame 101 and is located above the frame 101 through an opening (not marked) above the head cover 102. Since the mounting mode between the foot stand 103 and the propeller and the frame 101 can refer to the prior art, it will not be described here.

[0034] The helicopter 10 comprises a front end portion and a rear end portion connected to each other, and has mounting and fixing positions for mounting and fixing the head cover 102 and the frame 101 at the front end portion and the rear end portion, for example, as shown in Figure 1 In the present embodiment, the helicopter 10 has a mounting and fixing position A at the front end portion and a mounting and fixing position B at the rear end portion. In the present embodiment, the helicopter 10 further comprises a head cover assembly positioning structure 104, which is used for assembling the head cover 102 to the frame 101. The head cover assembly positioning structure 104 can be applied only at the mounting and fixing position A, or can be applied only at the mounting and fixing position B, or the number of the head cover assembly positioning structure 104 can be increased so that the head cover assembly positioning structure 104 can be applied at the mounting and fixing positions A and B at the same time. In the present embodiment, the head cover assembly positioning structure 104 is applied only at the mounting and fixing position A, and other mounting and fixing structures are used at the mounting and fixing position B.

[0035] Please refer to Figure 3 and Figure 4 shown, Figure 3 is a schematic view of an explosion of the front end portion of the helicopter 10, Figure 4This is a sectional view of the location of the headgear assembly positioning structure 104. The headgear assembly positioning structure 104 includes a fixing post 1041, which is fixed to the headgear 102. Specifically, in this embodiment, the fixing post 1041 is fixed to the headgear 102 by screws 1044 or bolts, using a threaded connection. The headgear assembly positioning structure 104 also includes a guide member 1042, which is fixed to the frame 101. Specifically, in this embodiment, the guide member 1042 is fixed to the headgear 102 by screws 1045 or bolts, using a threaded connection. In other embodiments, the fixing post 1041 is fixed to the headgear 102 by adhesive bonding or other fixing methods, and the guide member 1042 is fixed to the frame 101 by adhesive bonding or other fixing methods.

[0036] When the head cover 102 is assembled onto the frame 101, the head cover 102 and the frame 101 approach each other in a preset assembly direction to finally assemble together. The guide member 1042 has a guide groove 1042a along the preset assembly direction, and a fixing hole 1043 is provided at the end of the guide groove 1042. The guide groove 1042 communicates with the fixing hole 1043, and the direction in which the guide groove 1042 extends is approximately perpendicular to the direction of the central axis of the fixing hole 1043. When the head cover 102 is assembled onto the frame 101, the fixing post 1041 mounted on the head cover 102 moves along the guide groove 1042 and is eventually received in the fixing hole 1043. The fixing post 1041 and the fixing hole 1043 have a loose fit. The end of the guide groove 1042a away from the fixing hole 1043 is flared, thus facilitating the guidance of the fixing post 1041 into the fixing hole 1043. In other embodiments, unlike the case where only the end away from the fixing hole 1043 is flared, the guide groove 1042 is flared overall, including a large end and a small end, with the fixing hole 1043 located at the small end of the guide groove. In this embodiment, the guide member 1042 is fixed to the frame 101 at the bottom of the fixing hole 1043 by a screw 1045; that is, the screw 1045 passes through the bottom of the guide member 1042 and connects to the frame 101. In other embodiments, the guide member 1042 may be fixed to the frame 101 at other locations, such as the bottom of the guide groove 1042, or by additionally provided ears.

[0037] The following is a brief description of the mounting and fixing structure used at mounting point B. Please refer to [link / reference]. Figure 5 and Figure 6 As shown, where Figure 5 This is a schematic diagram of the rear section of helicopter 10 after the explosion. Figure 6Figure 10 is a sectional view of the installation fixing structure 105. The installation fixing structure 105 includes a fixing member 1051 and a receiving member 1052 receiving the fixing member 1051. The receiving member 1052 is fixed to the frame 101 and has a receiving space 1052a and an opening 1052b (hereinafter referred to as a first opening 1052b) connecting the receiving space 1052a with the outside. The first opening 1052b is directed toward the head cover 102 and is tapered relative to the receiving space 1052a to form shoulder portions 1052c (hereinafter referred to as first shoulder portions 1052c) on opposite sides of the first opening 1052b. The fixing member 1051 is detachably installed on the head cover 102. The head cover 102 has an opening 1021 (hereinafter referred to as a second opening 1021) corresponding to the receiving member 1052. The second opening 1021 has a size substantially equal to that of the first opening 1052b. One end of the fixing member 1051 passes through the second opening 1021 and is clamped in the receiving space 1052a of the receiving member 1052. The fixing member 1051 has an accommodation space 1051a and an opening 1051b (hereinafter referred to as a third opening 1051b) on a side opposite to the receiving member 1052. The third opening 1051b is tapered relative to the accommodation space 1051a to form shoulder portions 1051c (hereinafter referred to as second shoulder portions 1051c) on opposite sides of the third opening 1051b. The fixing member 1051 has a through hole 1051d in a side wall thereof. When the fixing member 1051 is received in the receiving space 1052a, the through hole 1051d connects the receiving space 1052a of the receiving member 1052 with the accommodation space 1051a of the fixing member 1051. The through hole 1051d has a ball 1051e embedded therein. The fixing member 1051 receives an elastic pressing column 1053 in the accommodation space 1051a. One end of the elastic pressing column 1053 extends out of the accommodation space 1051a through the third opening 1051b. A side wall of the elastic pressing column 1053 has a concave-convex structure 1053a corresponding to a position of the ball 1051e. When the elastic pressing column 1053 is not pressed, it is in an extended state. At this time, the concave-convex structure 1053a is in a first position, in which a convex portion is aligned with the ball 1051e. When the elastic pressing column 1053 is pressed, it is switched to a compressed state. At this time, the concave-convex structure 1053a is in a second position, in which a concave portion is aligned with the ball 1051e. In this embodiment, the elastic pressing column 1053 includes a pressing column body 1053b and an elastic member 1053c. In this embodiment, the elastic member 1053c is a spring. One end of the pressing column body 1053b is recessed toward the inside to form a receiving hole 1053d. One end of the elastic member 1053c is received in the receiving hole 1053d, and the other end abuts against a bottom wall opposite to the third opening 1051b of the accommodation space 1051a.

[0038] The following describes the mounting process of the head cover 102 to the frame 101 and the dismounting process of the head cover 102 from the frame 101.

[0039] Installation procedure

[0040] The head cover 102 is moved towards the frame 101, the fixing post 1041 of the head cover 102 reaches the guide 1042 and slides along the guide groove 1042a in the guide 1042 to the fixing hole 1043 and is received in the fixing hole 1043. In this way, the head cover 102 and the frame 101 are assembled together at the mounting and fixing position A of the helicopter 10. Then, the second opening 1021 at the rear end of the head cover 102 is aligned with the receiving member 1052 on the frame 101, the elastic pressing post 1053 of the fixing member 1051 is pressed, the concave part of the concave-convex structure 1053a is aligned with the ball 1051e, so that when the one end of the fixing member 1051 passes through the first opening 1052b and the second opening 1021, the ball 1051e can move to the inside of the fixing member 1051, and after the one end of the fixing member 1051 enters the receiving space 1052a, the elastic pressing post 1053 is released, the elastic pressing post 1053 is reset, at this time, the convex part of the concave-convex structure 1053a is aligned with the ball 1051e, the convex part of the concave-convex structure 1053a pushes the ball 1051e outward, so that the ball protrudes from the side wall of the fixing member 1051. In this way, due to the existence of the shoulder 1052c at the first opening 1052b of the receiving member 1052, the fixing member 1051 is prevented from falling off from the receiving member 1052, and the assembly between the head cover 102 and the frame 101 at position B is achieved.

[0041] Removal procedure

[0042] Firstly, the head cover 102 and the frame 101 are separated at position B, and then the head cover 102 and the frame 101 are separated at position A, the process is as follows: at position B, the elastic pressing post 1053 of the fixing member 1051 is pressed, the concave part of the concave-convex structure 1053a is aligned with the ball 1051e, the fixing member 1051 is pulled out of the receiving member 1052 and is simultaneously dismounted from the second opening 1021 of the head cover 102; then, at position A, the fixing post 1041 is lifted, the fixing post 1041 is moved out of the fixing hole 1043 and is moved away from the frame 101 along the guide groove 1042a. In this way, the dismounting of the head cover 102 and the frame 101 is achieved.

[0043] In summary, since the head cover assembly positioning structure 104 is adopted, when the head cover 102 is assembled to the rack 101, the guide groove 1042a on the guide piece 1042 is flared, so that the head cover 102 and the rack 101 do not need to be aligned, the assembly is simple, and since the fixed column 1041 and the fixed hole 1043 are loosely matched, when disassembled, the fixed column 104 is only slightly lifted to be away from the fixed hole 1043. Therefore, even if the head cover 101 is frequently disassembled and assembled, the strength of the head cover 101 will not be affected, and the head cover 102 will not have the risk of cracking.

[0044] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection range of the present application.

Claims

1. A headgear fitting positioning structure for mounting a headgear of a helicopter to a frame of the helicopter, characterized by, The head cover assembly positioning structure comprises: a fixing column fixed on the head cover; and a guide fixed on the rack, the guide being provided with a guide slot and a fixing hole at the end of the guide slot, wherein the guide slot is configured to guide the fixing column into the fixing hole. The end of the guide slot away from the fixing hole is flared.

2. The headgear assembly positioning structure of Claim 1, wherein, The guide slot is flared as a whole, comprising a large end and a small end, and the fixing hole is located at the small end.

3. The headgear assembly positioning structure of claim 1, wherein The fixing column and the fixing hole are loosely fitted.

4. A headgear assembly positioning structure according to claim 2 or 3 wherein, The direction in which the guide slot extends is substantially perpendicular to the direction in which the central axis of the fixing hole is located.

5. The headgear assembly positioning structure of Claim 4, wherein, The fixing column is fixed on the head cover by screwing and / or sticking, and / or the guide is fixed on the rack by screwing and / or sticking, and / or the guide is fixed on the rack at the bottom of the fixing hole by screwing.

6. The headgear assembly positioning structure of Claim 5, wherein, The head cover assembly positioning structure comprises:

7. A helicopter characterized by a rack; a head cover configured to cover the rack; and the head cover assembly positioning structure according to any one of claims 1-6. The head cover assembly positioning structure further comprises: a mounting and fixing structure comprising:

8. The helicopter according to claim 7, characterized in that a fixing member detachably mounted on the head cover; and a receiving member fixed on the rack and configured to receive and hold the fixing member. The mounting and fixing structure further comprises an elastic pressing column, the receiving member is provided with a receiving space and a first opening communicating the receiving space with the outside, the first opening is narrowed relative to the receiving space to form shoulder portions on both sides of the first opening, the head cover is provided with a second opening corresponding to the receiving member, the fixing member is provided with a containing space, the sidewall of the fixing member is provided with a through hole to receive a ball, the side of the fixing member away from the receiving member is provided with a third opening, the elastic pressing column is received in the containing space and exposed through the third opening, the sidewall of the elastic pressing column is provided with a concave-convex structure corresponding to the ball, the concave-convex structure is switched between a first position and a second position by operating the elastic pressing column, in the first position, the concave-convex structure makes the ball protrude from the sidewall to make the fixing member blocked by the shoulder portions to be held in the receiving member, and in the second position, the concave-convex structure allows the ball to retreat into the through hole to allow the fixing member to be pulled out of the receiving member and the second opening. The elastic pressing column comprises a pressing column body and an elastic member, one end of the pressing column body is recessed towards the inside of the pressing column body to form a receiving hole, one end of the elastic member is received in the receiving hole, and the other end abuts against the bottom wall opposite to the third opening of the containing space. ​ 9. The helicopter according to claim 8, characterized in that, ​ 10. The helicopter as claimed in claim 9, characterized in that ​

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