Pressing type unlocking device and unmanned aerial vehicle

Abstract

According to the pressing type unlocking device and the unmanned aerial vehicle, after external force is applied to a pressing structure, a lock column moves towards a lock box, the pressing type unlocking device achieves locking through matching between a locking protrusion on the lock column and lock teeth in the lock box, and after external force in the direction of the lock box is applied to the pressing structure again, the lock column moves towards the lock box. Under the action of the reset lock ring, the locking protrusion on the lock column is separated from axial limiting of the lock teeth, the lock column can move in the direction away from the lock box, and unlocking is achieved through the pressing type locking device; when the pressing type unlocking device is installed on the unmanned aerial vehicle, the pressing type unlocking device is arranged on the side face of the cabin cover handle, when the lock teeth are matched with the locking protrusions to achieve locking, the pressing type unlocking device forms a pit in the side face of the cabin cover handle, the cabin cover handle is exposed, and workers can disassemble, assemble and move the cabin cover conveniently; when the lock column is reset to the unlocking state, the handle cover is flush with the fuselage, the streamline design of the fuselage of the unmanned aerial vehicle is guaranteed, and air resistance in the flying process of the unmanned aerial vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the field of locking and unlocking devices, and in particular to a push-type unlocking device and a drone using the push-type unlocking device. Background Art

[0002] When industrial products are running in fluids, the fluids often create resistance to the operation of the products. For example, when industrial products such as cars and airplanes move in the air, the air creates resistance to the cars and airplanes; when submarines are running in water, the water creates resistance to the submarines. Maintaining the streamlined shape of the product and making the product run in the fluid with minimal resistance is the goal that designers have always pursued. However, current products, especially those involving openable structures, still have some design defects, so that these products still create greater resistance when running in fluids.

[0003] Taking an aircraft as an example, during the design process, it is necessary to ensure that the aircraft's shape maintains a streamlined structure to reduce the air resistance to the aircraft during flight and improve the flight efficiency of the aircraft. The cabin cover is an external structure that can be disassembled and assembled on the aircraft fuselage. The staff needs to disassemble and repair the internal structure of the aircraft through the cabin cover installed on the fuselage. In the prior art, the cabin cover is fixed to the aircraft fuselage by bolts, and a handle is provided on the cabin cover. The handle is used to facilitate the movement of the cabin cover during the disassembly and assembly process. However, during the flight of the aircraft, the position of the handle destroys the streamlined design of the aircraft's shape, forms a large wind resistance on the surface of the aircraft fuselage, and reduces the flight efficiency of the aircraft.

[0004] Therefore, how to make the cabin cover easy to open and ensure that the aircraft as a whole conforms to the streamlined design and reduces the flight wind resistance after the cabin cover is buckled on the aircraft is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The utility model aims to provide a cabin cover handle provided with a push-type unlocking device, which can not only facilitate the disassembly and assembly of the cabin, but also ensure that the aircraft fuselage is streamlined as a whole, thereby reducing the air resistance of the aircraft during flight.

[0006] To achieve the above-mentioned purpose, the utility model provides the following scheme: a push-type unlocking device, comprising a push structure and a locking structure, the locking structure comprising a lock column and a lock box, the lock column comprising a push section, a locking section and a limit section, the push section, the locking section and the limit section are connected in sequence, a locking protrusion is arranged on the locking section, a step surface is formed at a connection position between the locking protrusion and the push section, the connection position between the locking protrusion and the locking section is connected through a first guide structure, the push structure is arranged at the end of the push section, and a push boss is arranged on one side of the push structure facing the push section along the axial direction of the lock column;

[0007] A first through hole is provided on the lock box, and the lock column is provided in the first through hole. A lock tooth and a lock tooth reset spring are provided in the lock box. The lock tooth reset spring pushes the lock tooth toward the lock column, and the side surface of the lock tooth abuts against the surface of the lock column. An inclined guide surface is provided on the side where the lock tooth abuts against the lock column, and allows the first guide structure to pass through.

[0008] An elastic reset part is arranged between the pressing structure and the lock box, a reset lock ring is arranged on the sliding sleeve of the pressing section, a second guide structure is arranged on the side of the reset lock ring facing the pressing structure, the outer diameter of the reset lock ring is not larger than the diameter of the first through hole, the maximum size of the projection of the locking protrusion on the cross section of the lock column is smaller than the maximum size of the projection of the reset lock ring on the locked cross section, the pushing boss can pass through the first through hole, and a limiting device is arranged at the end of the limiting section.

[0009] Furthermore, the pressing structure includes a handle cover, and a handle box is also arranged between the pressing structure and the lock box. The lock box is arranged on the outside of the bottom of the handle box. A second through hole is arranged at the bottom of the handle box. The second through hole is aligned with the first through hole, and the second through hole allows the pushing boss to pass through. The handle cover is arranged on the top of the handle box, and the handle cover can move inside the handle box.

[0010] Furthermore, an elastic return member is arranged inside the handle box, and the elastic return member is a spring sleeved on the outer side of the lock column. The two ends of the elastic return member are respectively abutted against the bottom inner side of the handle box and the side of the handle cover facing the pressing section.

[0011] Furthermore, the elastic reset member is a tower spring, and the elastic force of the tower spring is greater than the friction force between the lock tooth and the lock column.

[0012] Furthermore, the lock box also includes a lock body and a lock cover, the lock body is arranged on the bottom outer side of the handle box, the lock body is provided with a third through hole, one end of the lock tooth reset spring is fixedly connected to the side of the third through hole, and the other end is provided with a lock tooth; a fourth through hole is provided at a position of the lock cover corresponding to the third through hole, and the lock cover is arranged on the side of the lock body away from the handle box; the third through hole and the fourth through hole allow the push boss to pass through, and the third through hole and the fourth through hole constitute the first through hole.

[0013] Furthermore, the locking protrusion is an annular protrusion surrounding the locking column.

[0014] Furthermore, there are at least two locking teeth, which are arranged in the third through hole of the lock body and are evenly distributed around the lock column.

[0015] Furthermore, a lock tooth limiting structure for maintaining a reserved gap between the lock tooth and the lock column is provided on the lock cover.

[0016] Furthermore, the first guiding structure is a guiding inclined surface or a guiding curved surface; and the second guiding structure is a guiding curved surface.

[0017] Furthermore, the limiting structure is a limiting nut.

[0018] The present invention also relates to a cabin cover of a drone utilizing the above-mentioned unlocking device, wherein a cabin cover handle is arranged on the cabin cover, and a press-type unlocking device is arranged between the cabin cover handle and the cabin cover, and the cabin cover handle constitutes a press structure.

[0019] Compared with the prior art, the utility model has achieved the following technical effects:

[0020] The locking projection is then released and the locking projection is released, so that the locking projection is released and the locking projection is released, and the locking projection is released to the locking position.

[0021] When the push-type unlocking device is installed on an aircraft, the push-type unlocking device is arranged on the side of the cabin cover handle. When the locking tooth cooperates with the locking protrusion to achieve locking, the push-type unlocking device forms a depression on the side of the cabin cover handle, and the cabin cover handle is exposed, which is convenient for staff to disassemble and move the cabin cover; when the lock column is reset to the unlocked state, the handle cover is flush with the fuselage, ensuring the streamlined design of the aircraft fuselage and reducing the air resistance of the aircraft during flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic cross-sectional view of the overall structure of the drone in the embodiment of the utility model when the drone is in a locked state with a push-type unlocking device;

[0024] Figure 2 It is a schematic diagram of a lock cylinder disclosed in an embodiment of the utility model;

[0025] Figure 3 It is an axonometric diagram of the lock cylinder disclosed in the embodiment of the utility model;

[0026] Figure 4 It is a front view schematic diagram of the reset lock ring disclosed in the embodiment of the utility model;

[0027] Figure 5 It is a top view schematic diagram of the reset lock ring disclosed in the embodiment of the utility model;

[0028] Figure 6 It is a bottom view schematic diagram of the handle cover disclosed in the embodiment of the utility model;

[0029] Figure 7 It is an axonometric schematic diagram of the handle cover disclosed in the embodiment of the utility model;

[0030] Figure 8 It is a top view schematic diagram of the lock cover disclosed in the embodiment of the utility model;

[0031] Fig. 9 It is an axonometric schematic diagram of the lock cover disclosed in the embodiment of the utility model;

[0032] Fig.10 It is an axonometric diagram of a lock body disclosed in an embodiment of the utility model;

[0033] Fig.11 It is an axonometric schematic diagram of the limit nut disclosed in the embodiment of the utility model;

[0034] Fig.12 It is a schematic diagram of the unlocking process of the lock tooth to the lock cylinder in the push-type unlocking device disclosed in the embodiment of the utility model;

[0035] Fig.13 A schematic diagram of the relative position relationship between the locking teeth and the reset locking ring during the unlocking process of the push-type unlocking device disclosed in the embodiment of the utility model;

[0036] Fig.14 It is a schematic diagram of the relative position relationship between the locking teeth and the reset lock ring during the reset process of the pressing structure in the press-type unlocking device disclosed in the embodiment of the utility model;

[0037] Fig.15 It is a schematic diagram of the push-type unlocking device disclosed in the embodiment of the utility model in the unlocking state.

[0038] Explanation of the accompanying drawings: 1. Handle cover; 2. Handle box; 3. Lock box; 4. Lock column; 5. Elastic reset member; 6. Limiting structure; 7. Reset lock ring; 8. Pushing boss; 9. Pressing section; 10. Locking section; 11. Limiting section; 12. Locking tooth; 13. First guide structure; 14. Step surface; 15. Limiting nut; 16. Fourth through hole; 17. Lock body; 18. Third through hole; 19. Locking tooth reset spring; 20. Second guide structure; 21. Lock cover; 22. Locking protrusion. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] This embodiment provides a push-type unlocking device, which includes but is not limited to being used for the cabin cover of a drone, making it easy for workers to disassemble and move the cabin cover, and reducing the air resistance of the aircraft during flight; please refer to Figures 1 to 15 The push-type unlocking device includes a pressing structure and a locking structure. The locking structure includes a lock column 4 and a lock box 3. The lock column 4 includes a pressing section 9, a locking section 10 and a limiting section 11. The lock column 4 passes through a first through hole provided on the lock box 3 and can freely move along the axial direction of the first through hole. A locking protrusion 22 is provided on the locking section 10. The connection position of the locking protrusion 22 and the locking section 10 is connected through a first guide structure 13. When the cabin cover needs to be disassembled and assembled, the lock column is pressed by the pressing structure. During the movement of the lock column 4 along the axis of the first through hole on the lock box 3 toward the direction of the lock box 3, the inclined guide surface provided on the side where the lock tooth 12 abuts against the lock column 4 causes the lock tooth 12 to move along the first guide structure 13 between the locking protrusion 22 and the locking section 10, and the locking protrusion 22 moves the lock tooth 12 is squeezed in the direction away from the lock column 4; after the lock tooth 12 passes over the locking protrusion 22, the lock tooth 12 abuts against the surface of the pressing section 9 in the lock column 4 under the action of the lock tooth reset spring 19. At this time, the pushing boss 8 arranged on the pressing structure has not yet abutted against the reset lock ring 7. After the external force acting on the pressing structure is removed, the lock column 4 moves in the direction away from the lock box 3 under the action of the elastic reset member 5; since the connection position of the locking protrusion 22 and the pressing section 9 forms a step surface 14, when the lock column 4 moves in the direction away from the lock box 3, the step surface 14 abuts against the bottom surface of the lock tooth 12 and limits the axial movement of the lock column 4. At this time, a groove is formed on the side of the cabin cover handle, and the staff can hold the cabin cover handle arranged inside the cabin cover through the groove, which is convenient for disassembly and assembly of the cabin cover;

[0041] When the aircraft needs to fly, the pressing structure is pressed again. Under the action of pressure, the pressing structure moves toward the direction of the lock box 3. A pushing boss 8 is provided on the side of the pressing section 9 along the axial direction of the lock column 4. The pushing boss 8 pushes the reset lock ring 7 sleeved on the pressing section 9 to move toward the direction of the lock box 3. Since the outer diameter of the reset lock ring 7 is larger than the size of the projection of the locking protrusion 22 in the cross-sectional direction of the lock column 4 (the purpose is to ensure that when the pressing structure is pressed again, the lock tooth 12 is pushed open by the reset lock ring 7), the reset lock ring 7 squeezes the lock tooth 12 along the inclined guide surface on the side of the lock tooth 12 under the action of the pushing boss 8, so that the lock tooth 12 is away from the lock column 4. Until the reset lock ring 7 abuts against the above-mentioned step surface 14, the reset lock ring 7 at this time releases the limit of the lock tooth 12 on the lock column 4, so that the lock column 4 can move freely along the axial direction of the first through hole. After the external force acting on the pressing structure is removed, since the reset lock ring 7 is provided with a second guide structure 20 on the side of the pressing structure, the lock tooth 12 slides over the second guide structure 20 of the reset lock ring 7 and passes over the locking protrusion 22. The lock column 4 moves in the direction away from the lock box 3 under the action of the elastic reset member 5. By providing a limiting structure at the end of the limiting section 11, the pressing structure is flush with the surface of the aircraft cabin cover to ensure the streamlined shape of the aircraft fuselage.

[0042] A handle box 2 is also provided on the outside of the pressing section 9, and a handle cover 1 is provided in the handle box 2. The edge of the handle cover 1 abuts against the inner wall of the handle box 2, and the handle cover 1 can move freely inside the handle box 2. A second through hole corresponding to the first through hole on the lock box 3 is provided at the bottom of the handle box 2. With the mutual cooperation between the handle box 2 and the handle cover 1, the lock column 4 moves along the axis of the first through hole, ensuring that the pressing structure can be retracted and popped out smoothly.

[0043] In order to further improve the stability of the lock column 4 during movement, an elastic reset member 5 is sleeved on the lock column 4. The elastic reset member 5 can be a spring. When the elastic reset member 5 is a spring, the two ends of the elastic reset member 5 are respectively abutted against the bottom inner side of the handle box 2 and the handle cover 1, ensuring that the external force acting on the handle cover 1 and the elastic force direction of the elastic reset member 5 are parallel to the axis of the lock column 4, avoiding deflection of the movement direction of the lock column 4 during the pressing process.

[0044] When the pressing structure is in the locked state, in order to facilitate the staff to grasp it or to facilitate the fixing of the lifting equipment, the locking device is required to form a deeper groove at the handle position. Therefore, the elastic reset member 5 can use a tower spring. The end with a smaller diameter of the tower spring is connected to the handle cover 1, and the end with a larger diameter is connected to the inner side of the bottom of the handle box 2. In the process of pushing the handle cover 1 to move toward the handle box 2, the handle cover 1 has a larger stroke, thereby increasing the contraction depth of the handle cover 1, which is convenient for the lifting equipment to lift and transport the cabin cover; at the same time, the tower spring can also center the lock column 4 in the first through hole and the second through hole, so that the axis of the lock column 4 coincides with the axis of the first through hole and the second through hole.

[0045] In order to ensure that the lock column 4 can move smoothly along the axis of the first through hole during the process of popping out the handle cover 1, the elastic force generated by the tower spring on the pressing structure is greater than the friction force between the lock tooth 12 and the side of the lock column 4;

[0046] The elastic reset member 5 may also be a V-shaped elastic sheet.

[0047] Since the lock column 4 may rotate when the handle cover 1 is pressed, when the lock column 4 rotates and the locking protrusion 22 deviates from the locking tooth 12, the handle cover 1 is pressed again and the locking tooth 12 cannot axially limit the lock column 4 through the locking protrusion 22. Therefore, the locking protrusion 22 is set to be an annular protrusion surrounding the circumference of the locking section 10 to ensure that when the handle cover 1 is pressed, the locking tooth 12 can always be stuck on the step surface 14 formed by the locking protrusion 22 and the pressing section 9, thereby effectively limiting the lock column 4 in the axial direction.

[0048] In order to reduce the friction between the surface of the lock column 4 and the side walls of the first through hole and the second through hole, at least two lock teeth 12 are set, and the lock teeth 12 are axially evenly distributed around the lock column 4. The lock teeth 12 apply pressure to the lock column 4 toward the axis of the lock column 4, restricting the lock column 4 to the position of the center of the first through hole and the second through hole, reducing the friction between the surface of the lock column 4 and the side walls of the first through hole and the second through hole, reducing the wear of the lock column 4 and making the lock column 4 move more smoothly in the first through hole and the second through hole.

[0049] At the same time, in order to reduce the friction between the lock tooth 12 and the lock column 4 during the use of the push-type unlocking device and reduce the wear of the lock tooth 12, a lock tooth limiting structure is provided on the lock cover 21. The lock tooth limiting structure is a lock tooth limiting protrusion. The lock tooth 12 is provided with a guide groove on the side facing the lock cover 21. The lock tooth limiting protrusion can slide along the guide groove. The lock tooth limiting protrusion reduces the elongation length of the lock tooth reset spring 19, so that a reserved gap is formed between the side surface of the lock tooth 12 and the surface of the lock column 4. The reserved gap allows a certain interval between the side surface of the lock tooth 12 and the surface of the lock column 4. The interval can be 0.1 mm or other suitable gap values, and the spacing between the two side surfaces of the lock teeth 12 is smaller than the outer diameter of the annular protrusion.

[0050] The first guide structure 13 is a guide inclined surface or a guide arc surface; the second guide structure 20 is a guide arc surface.

[0051] A drone is provided with a cabin cover, a cabin cover handle is provided on the cabin cover, and the above-mentioned push-type unlocking device is provided between the cabin cover handle and the cabin cover, and the cabin cover handle constitutes a push structure.

[0052] The utility model uses specific examples to illustrate the structure and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A push-type unlocking device, comprising a push structure and a locking structure, characterized in that: The locking structure comprises a lock column (4) and a lock box (3); the lock column (4) comprises a pressing section (9), a locking section (10) and a limiting section (11); the pressing section (9), the locking section (10) and the limiting section (11) are connected in sequence; a locking protrusion (22) is arranged on the locking section (10); a step surface (14) is formed at a connection position between the locking protrusion (22) and the pressing section (9); the connection position between the locking protrusion (22) and the locking section (10) is connected via a first guide structure (13); the pressing structure is arranged at an end of the pressing section (9); a pushing boss (8) is arranged on one side of the pressing structure facing the pressing section (9) along the axial direction of the lock column (4); The lock box (3) is provided with a first through hole, the lock column (4) is inserted into the first through hole, a lock tooth (12) and a lock tooth reset spring (19) are provided in the lock box (3), the lock tooth (12) is pushed toward the lock column (4) by the lock tooth reset spring (19), and the side surface of the lock tooth (12) is abutted against the surface of the lock column (4), and an inclined guide surface is provided on the side where the lock tooth (12) abuts against the lock column (4) to allow the first guide structure (13) to pass through; An elastic reset member (5) is arranged between the pressing structure and the lock box (3); a reset lock ring (7) is provided on the sliding sleeve of the pressing section (9); a second guide structure (20) is provided on the side of the reset lock ring (7) facing the pressing structure; the outer diameter of the reset lock ring (7) is not greater than the diameter of the first through hole; the maximum size of the projection of the locking protrusion (22) on the cross section of the lock column (4) is smaller than the maximum size of the projection of the reset lock ring (7) on the cross section of the lock column (4); the pushing boss (8) can pass through the first through hole; and a limiting device is provided at the end of the limiting section (11).

2. The push-type unlocking device according to claim 1, characterized in that: The pressing structure comprises a handle cover (1); a handle box (2) is further arranged between the pressing structure and the lock box (3); the lock box (3) is arranged on the outside of the bottom of the handle box (2); a second through hole is arranged at the bottom of the handle box (2); the second through hole is aligned with the first through hole, and the second through hole allows the pushing boss (8) to pass through; the handle cover (1) is arranged on the top of the handle box (2); and the handle cover (1) is capable of moving inside the handle box (2).

3. The push-type unlocking device according to claim 2, characterized in that: The elastic return member (5) is arranged inside the handle box (2), and the elastic return member (5) is a spring sleeved on the outer side of the lock column (4). The two ends of the elastic return member (5) are respectively in contact with the inner side of the bottom of the handle box (2) and the side of the handle cover (1) facing the pressing section (9).

4. The push-type unlocking device according to claim 3, characterized in that: The elastic reset member (5) is a tower spring, and the elastic force of the tower spring is greater than the friction force between the locking tooth (12) and the locking column (4).

5. The push-type unlocking device according to claim 4, characterized in that: The lock box (3) further comprises a lock body (17) and a lock cover (21); the lock body (17) is arranged on the outer side of the bottom of the handle box (2); the lock body (17) is provided with a third through hole (18); one end of the lock tooth reset spring (19) is fixedly connected to the side of the third through hole (18), and the other end is provided with the lock tooth (12); a fourth through hole (16) is provided at a position of the lock cover (21) corresponding to the third through hole (18); the lock cover (21) is arranged on a side of the lock body (17) away from the handle box (2); the third through hole (18) and the fourth through hole (16) allow the push boss (8) to pass through, and the third through hole (18) and the fourth through hole (16) constitute the first through hole.

6. The push-type unlocking device according to claim 1, characterized in that: The locking protrusion (22) is an annular protrusion surrounding the locking column (4).

7. The push-type unlocking device according to claim 5, characterized in that: There are at least two locking teeth (12), which are arranged in the third through hole (18) of the lock body (17) and are evenly distributed around the lock column (4).

8. The push-type unlocking device according to claim 7, characterized in that: The lock cover (21) is provided with a lock tooth limiting structure for maintaining a reserved gap between the lock tooth (12) and the lock column (4).

9. The push-type unlocking device according to claim 8, characterized in that: The limiting structure is a locking tooth limiting protrusion, and a guide groove is provided on the side of the locking tooth facing the locking cover, and the locking tooth limiting protrusion can slide along the guide groove.

10. The push-type unlocking device according to claim 1, characterized in that: The first guiding structure is a guiding inclined surface or a guiding curved surface; the second guiding structure is a guiding curved surface.

11. The push-type unlocking device according to claim 9, characterized in that: The limiting structure is a limiting nut (15).

12. An unmanned aerial vehicle, provided with a canopy, characterized in that: A cabin cover handle is provided on the cabin cover, and a push-type unlocking device as described in any one of claims 1 to 11 is provided between the cabin cover handle and the cabin cover, and the cabin cover handle constitutes the pressing structure.

Images