Flap lock and flap

Abstract

The present application relates to a kind of lid lock and lid, belong to lid technical field, lid lock includes lock pin assembly, lock seat assembly and drive structure, lock pin assembly is used to set on lid, including pressing moving part, pressing reset piece and lock pin, the first end of the pressing moving part is provided with pressing portion, lock seat assembly is used to set on aircraft body, including lock seat, the lock seat is set on the moving path of the pressing moving part, and with the cooperation channel that the pressing moving part and the lock pin are inserted, the lock seat has the locking position of the lock pin being blocked in cooperation channel and the unlocking position of the lock pin passing through cooperation channel.The present application makes that lid is opened only when operator presses pressing portion once, after pressing, lock seat can automatically switch to the unlocking position, so that the lock pin can be automatically kept in the unlocked state, without operator to pressing portion sustained force, so that the opening of lid is more convenient.

Description

Technical Field

[0001] This invention relates to a lid lock and a lid, belonging to the field of lid technology. Background Technology

[0002] With the rapid development of aviation technology, aircraft are increasingly equipped with more and more finished products, equipment, and accessories, requiring various maintenance access panels to be installed on the fuselage. These panels are mainly used for pre- and post-flight inspections, periodic checks, repairs, adjustments, and replacements. Therefore, the selection of aircraft access panel locks is crucial, as they are used to lock and open aircraft access panels.

[0003] Existing cover locks generally use a swing-type or sliding type lock key, which locks and unlocks the cover by rotating or moving the lock key. However, when opening the cover, the operator needs to apply continuous force to keep the lock key in the unlocked state until the cover is opened, which makes opening the cover very inconvenient.

[0004] Therefore, a new, optimized cap structure is needed to facilitate opening the cap. Summary of the Invention

[0005] The purpose of this invention is to provide a cover lock and a cover that facilitate the opening of the cover.

[0006] This invention provides a hatch lock, disposed within a hatch, for locking the hatch to the aircraft fuselage, and characterized by the following features:

[0007] A locking assembly for mounting on a cover includes a pressing moving part, a pressing resetting part, and a locking pin. The first end of the pressing moving part is provided with a pressing part, and the locking pin is fixedly mounted on the second end of the pressing moving part. When the pressing part is pressed, it drives the pressing moving part to move in the extension direction. The pressing resetting part is used to make the pressing moving part have a tendency to move and reset in the retraction direction.

[0008] A locking assembly for mounting on an aircraft fuselage includes a locking seat disposed on the movement path of the pressing movable member and having a mating channel for the pressing movable member and the locking pin to extend into.

[0009] The lock seat has a locked position where the locking pin is blocked within the mating channel and an unlocked position where the locking pin passes through the mating channel. In the locked position, the lock seat blocks the locking pin in the retraction direction of the pressing moving member; in the unlocked position, the obstruction to the locking pin is removed.

[0010] A driving structure, disposed within the mating channel, is used to drive the locking pin as it moves within the mating channel with the pressing moving member, thereby driving the lock seat to switch to the locked position or the unlocked position.

[0011] When the pressing part is pressed once, the locking pin moves along the extension direction with the pressing moving part into the mating channel, and drives the driving structure to switch the lock seat to the locking position.

[0012] When the pressing part is pressed again, the lock seat switches to the unlocked position, and the lock pin moves and resets along the retraction direction with the pressing moving part.

[0013] The cover lock provided by this invention may also have the following features:

[0014] The lock assembly also includes a second housing for connection to the aircraft fuselage and has room for rotation.

[0015] The lock base is rotatably disposed within the rotation space, and includes:

[0016] The first set of cylindrical components has the locking position and the unlocking position, and also has a first channel extending through both ends of its axial direction;

[0017] A second sleeve is disposed on the end of the first sleeve facing away from the pressing and moving member, which drives the first sleeve to rotate and has a second channel communicating with the end of the first channel; and

[0018] A connecting structure is used to achieve synchronous rotation of the first sleeve and the second sleeve.

[0019] The first channel and the second channel together constitute the cooperation channel.

[0020] When in the locked position, the locking pin is blocked within the first channel; when in the unlocked position, the locking pin moves through the first channel.

[0021] When the pressing part is pressed once, the first sleeve rotates to the locked position; when the pressing part is pressed again, the first sleeve rotates to the unlocked position.

[0022] The cover lock provided by this invention may also have the following features:

[0023] The pressing and moving component is a rod, and the locking pin penetrates the pressing and moving component radially.

[0024] The inner wall of the first channel has two opposing protrusions, and the gap between the two protrusions forms an entrance section that matches the projected shape of the entire assembly of the locking pin and the pressing movable member, so as to allow both the locking pin and the pressing movable member to pass through when aligned with the entrance section.

[0025] The driving structure includes:

[0026] A first driving unit is disposed at the inner end of the two protrusions facing the second sleeve member. The first driving unit is selectively positioned on the movement path formed by the synchronous movement of the locking pin and the pressing moving member. It engages with the locking pin when the locking pin moves along the retraction direction with the pressing moving member, thereby driving the first sleeve member to rotate a certain angle along the first direction, thus driving the first sleeve member to the locked position or the unlocked position.

[0027] The second driving part is disposed on the second sleeve at the end that contacts the first sleeve. The second driving part is located on the movement path of the locking pin. It is used to engage with the locking pin when the locking pin moves along the extension direction with the pressing moving member, so as to drive the second sleeve to rotate a certain angle along the first direction, thereby driving the first part or the second part of the first driving part to rotate onto the movement path of the locking pin.

[0028] When the pressing part is pressed once, the locking pin first impacts and engages with the first part of the second driving part and then impacts and engages with the first part of the first driving part, thereby driving the first sleeve to rotate to the locking position;

[0029] When the pressing part is pressed again, the locking pin first impacts and engages with the second part of the second driving part and then impacts and engages with the second part of the first driving part, thereby driving the first sleeve to rotate to the unlocked position.

[0030] The cover lock provided by this invention may also have the following features:

[0031] The first driving part includes four first helical surfaces, which are arranged in pairs at the inner ends of the two protrusions.

[0032] The first helical surface has a high end and a low end. Two first helical surfaces on the same protrusion are arranged sequentially along the circumference of the first sleeve, and the high end of one first helical surface is connected to the low end of the other first helical surface. The connection point between the two has a height difference, thereby forming a first blocking surface.

[0033] The high end or low end of the first helical surface on one of the protrusions faces the low end or high end of the first helical surface on the other protrusion.

[0034] The two first helical surfaces on different protrusions constitute the first part or the second part of the first drive unit. The two first helical surfaces are located in the same radial direction of the first sleeve, and the high ends of the two first helical surfaces constituting the first part are connected to the first blocking surface.

[0035] The cover lock provided by this invention may also have the following features:

[0036] The second drive unit includes four second helical surfaces, which are arranged sequentially along the circumference of the second sleeve.

[0037] The second helical surface has a high end and a low end, and the high end of one second helical surface is connected to the low end of another adjacent second helical surface. There is a height difference at the connection point of the two adjacent second helical surfaces, thereby forming a second blocking surface.

[0038] Two of the four second helical surfaces constitute the first or second portion of the second drive unit, and the two second helical surfaces are located on the same radial direction of the second sleeve.

[0039] The cover lock provided by the present invention may also have the following features, including:

[0040] A guiding structure, disposed on one end of the first sleeve facing away from the second sleeve, is used to engage with the locking pin as the pressing moving member moves along the extension direction, thereby driving the first sleeve to rotate a certain angle in the first direction or the opposite direction, thus driving the inlet section to rotate to a position aligned with the entire assembly of the locking pin and the pressing moving member.

[0041] The guiding structure includes four guiding spiral surfaces, which are arranged in pairs at the outer ends of the two protrusions. Each guiding spiral surface has a high end and a low end. The two guiding spiral surfaces on the same protrusion are arranged sequentially along the circumference of the first sleeve, and the high end of one guiding spiral surface is connected to the high end of the other guiding spiral surface. The connection between the two is transitioned by an outwardly convex curved surface.

[0042] The cover lock provided by this invention may also have the following features:

[0043] The connection structure includes:

[0044] A first engaging portion is disposed on the end of the first sleeve that contacts the second sleeve; and

[0045] The second engaging portion is disposed on the end of the second sleeve that contacts the first sleeve, and the second driving portion constitutes the second engaging portion.

[0046] The first engaging portion has a shape that matches the second engaging portion, and the two engage with each other.

[0047] The cover lock provided by the present invention may also have the following features, including:

[0048] A limiting structure, disposed within the rotation space, is used for axial limiting of the first sleeve and the second sleeve, and includes:

[0049] A first limiting surface is disposed at the first end of the rotation space and movably abuts against the end of the first sleeve that faces away from the second sleeve; and

[0050] The second limiting surface is disposed at the second end of the rotation space and movably abuts against the end of the second sleeve that faces away from the first sleeve.

[0051] The cover lock provided by this invention may also have the following features:

[0052] The locking assembly further includes a first housing for connection with the cover and having a movable space with an opening at one end. The pressing and moving member is movably disposed within the movable space, with its first end extending to the opening of the movable space and its second end sliding through the first housing.

[0053] The pressing part has an outer shape that matches the inner shape of the moving space, and the outer wall of the pressing part is in sliding fit with the inner wall of the moving space.

[0054] The pressing reset component is a compression spring, which is sleeved on the pressing moving component, with one end abutting against the pressing part and the other end abutting against the first housing.

[0055] The present invention provides a cover having the features of including the cover lock as described above.

[0056] Therefore, the present invention has the following advantages compared with the prior art:

[0057] According to the present invention, a cover lock and a cover are provided. The cover includes a cover body and a cover lock. The cover lock includes a locking pin assembly, a lock seat assembly, and a drive structure. The locking pin assembly is disposed on the cover and includes a pressing moving member, a pressing resetting member, and a locking pin. The first end of the pressing moving member is provided with a pressing part. The lock seat assembly is disposed on the aircraft fuselage and includes a lock seat. The lock seat is disposed on the moving path of the pressing moving member and has a mating channel for the pressing moving member and the locking pin to extend into. When the pressing part is pressed once, the locking pin moves along the pressing moving member in the extension direction into the mating channel and engages with the drive structure to drive the lock seat to switch to the locked position. The lock seat blocks the locking pin in the retraction direction of the pressing and moving part, thereby locking the cover lock and thus locking the cover. When the pressing part is pressed again, the locking pin cooperates with the driving structure to drive the lock seat to switch to the unlocked position. At this time, the obstruction of the locking pin is removed, and the locking pin moves back to its original position along the retraction direction with the pressing and moving part, thereby unlocking the cover lock and opening the cover. This means that when opening the cover, the operator only needs to press the pressing part once. After pressing, the lock seat can automatically switch to the unlocked position, so that the locking pin can automatically remain in the unlocked state without the operator having to continuously apply force to the pressing part, making the opening of the cover more convenient. Attached Figure Description

[0058] Figure 1 This is a three-dimensional structural diagram of the lid in an embodiment of the present invention;

[0059] Figure 2 This is a cross-sectional view of the lid in an embodiment of the present invention;

[0060] Figure 3 This is a three-dimensional structural diagram of the locking pin assembly in an embodiment of the present invention;

[0061] Figure 4 This is a three-dimensional structural diagram of the lock seat assembly in an embodiment of the present invention;

[0062] Figure 5 This is a cross-sectional view of the lock seat assembly in an embodiment of the present invention;

[0063] Figure 6 This is a three-dimensional structural diagram of the lock base in an embodiment of the present invention;

[0064] Figure 7 This is a three-dimensional structural diagram of the first set of cylindrical components in one direction in an embodiment of the present invention;

[0065] Figure 8 This is a three-dimensional structural diagram of the first set of cylindrical components in another direction in an embodiment of the present invention;

[0066] Figure 9 This is a three-dimensional structural schematic diagram of the second set of cylindrical components in an embodiment of the present invention;

[0067] Figure 10 This is a schematic diagram of the structure in which the locking pin and the first part of the first driving part cooperate in an embodiment of the present invention;

[0068] Figure 11 This is a schematic diagram of the structure of the first sleeve in its locked position in an embodiment of the present invention;

[0069] Figure 12 This is a schematic diagram of the structure in which the locking pin and the second part of the first driving part cooperate in an embodiment of the present invention;

[0070] Figure 13 This is a schematic diagram of the structure in which the locking pin and the first or second part of the second driving part cooperate in an embodiment of the present invention;

[0071] Figure 14 This is a schematic diagram of the structure when the second driving part blocks the locking pin in an embodiment of the present invention;

[0072] Figure 15 This is a three-dimensional structural diagram of the guiding structure in an embodiment of the present invention;

[0073] Figure 16 This is a cross-sectional view of the limiting structure in an embodiment of the present invention.

[0074] The markings in the attached drawings are described as follows: 100; 100a; 100a; 10; 11; 111; 12; 13; 14; 141; 20; 21; 211; 212; 212a; 212b; 212c; 213; 213a; 214a; 212a; 212b; 212c; 213; 213a; 212 ... Connecting protrusion 213b; connecting structure 214; first engaging part 214a; second engaging part 214b; second housing 22; rotation space 221; driving structure 30; first driving part 31; first helical surface 311; first blocking surface 312; second driving part 32; second helical surface 321; second blocking surface 322; guiding structure 40; guiding helical surface 41; limiting structure 50; first limiting surface 51; second limiting surface 52. Detailed Implementation

[0075] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following describes the cover lock and cover of the present invention in detail with reference to the embodiments and accompanying drawings.

[0076] This embodiment provides a cover lock and a cover that facilitate the opening of the cover.

[0077] Figure 1 This is a three-dimensional structural diagram of the lid in an embodiment of the present invention.

[0078] like Figure 1 As shown, the hatch 100 in this embodiment includes a hatch body (not shown) and a hatch lock 100a. The hatch lock 100a is used for locking the hatch to the aircraft body.

[0079] Figure 2 This is a cross-sectional view of the lid in an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the locking pin assembly in an embodiment of the present invention; Figure 4 This is a three-dimensional structural diagram of the lock seat assembly in an embodiment of the present invention.

[0080] like Figures 2 to 4 As shown, the hatch lock 100a includes a locking pin assembly 10, a locking seat assembly 20, and a drive structure 30. The locking pin assembly 10 is mounted on the hatch and includes a pressing moving member 11, a pressing resetting member 12, and a locking pin 13. The first end of the pressing moving member 11 has a pressing part 111, and the locking pin 13 is fixedly mounted on the second end of the pressing moving member 11. When the pressing part 111 is pressed, it drives the pressing moving member 11 to move in the extension direction. The pressing resetting member 12 is used to give the pressing moving member 11 a tendency to move and reset in the retraction direction. The locking seat assembly 20 is mounted on the aircraft fuselage and includes a locking seat 21. The locking seat 21 is disposed on the movement path of the pressing moving member 11 and has a mating channel 211 for the pressing moving member 11 and the locking pin 13 to extend into. The lock seat 21 has a locking position where the locking pin 13 is blocked within the mating channel 211, and an unlocking position where the locking pin 13 passes through the mating channel 211. In the locked position, the lock seat 21 blocks the locking pin 13 in the retraction direction of the pressing moving member 11; in the unlocking position, the obstruction to the locking pin 13 is removed. The drive structure 30 is disposed within the mating channel 211 and is used to drive the locking pin 13 as it moves within the mating channel 211 with the pressing moving member 11, thereby driving the lock seat 21 to switch between the locked and unlocked positions. Figure 2 The direction indicated by D1 is the extension direction, and the direction indicated by D2 is the retraction direction.

[0081] Understandably, when the pressing part 111 is pressed once, the locking pin 13 moves along the extension direction with the pressing moving part 11 into the mating channel 211, and engages with the driving structure 30 to drive the lock seat 21 to switch to the locked position. At this time, the lock seat 21 blocks the locking pin 13 in the retraction direction of the pressing moving part 11, thereby achieving the locking of the cover lock and thus the locking of the cover. When the pressing part 111 is pressed again, the locking pin 13 engages with the driving structure 30 again to drive the lock seat 21 to switch to the locked position. 1. When switched to the unlocked position, the obstruction of the locking pin 13 is removed, and the locking pin 13 moves back to its original position along the retraction direction with the pressing moving part 11, thereby unlocking the cover lock and opening the cover. This allows the operator to press the pressing part 111 once when opening the cover. After pressing, the lock seat 21 can automatically switch to the unlocked position, so that the locking pin 13 can automatically remain in the unlocked state without the operator having to continuously apply force to the pressing part 111, making the opening of the cover more convenient.

[0082] Figure 5 This is a cross-sectional view of the lock seat assembly in an embodiment of the present invention; Figure 6 This is a three-dimensional structural diagram of the lock base in an embodiment of the present invention; Figure 7 This is a three-dimensional structural diagram of the first set of cylindrical components in one direction in an embodiment of the present invention; Figure 8 This is a three-dimensional structural diagram of the first set of cylindrical components in another direction in an embodiment of the present invention; Figure 9 This is a three-dimensional structural diagram of the second set of cylindrical components in an embodiment of the present invention.

[0083] like Figures 5 to 9 As shown, the lock seat assembly 20 also includes a second housing 22 for connection to the aircraft fuselage and has a rotation space 221. The lock seat 21 is rotatably disposed within the rotation space 221 and includes a first sleeve 212, a second sleeve 213, and a connecting structure 214. The first sleeve 212 has a locked position and an unlocked position, and also has a first channel 212a extending through both ends of its axial direction. The second sleeve 213 is disposed on one end of the first sleeve 212 facing away from the pressing moving member 11, and is used to drive the first sleeve 212 to rotate, and has a second channel 213a communicating with the end of the first channel 212a. The connecting structure 214 is used to realize the synchronous rotation of the first sleeve 212 and the second sleeve 213. The first channel 212a and the second channel 213a together constitute a mating channel 211. When in the locked position, the locking pin 13 is blocked within the first channel 212a; when in the unlocked position, the locking pin 13 moves through the first channel 212a.

[0084] Understandably, when the pressing part 111 is pressed once, the locking pin 13 moves along the extension direction with the pressing moving part 11 into the mating channel 211, and engages with the driving structure 30 to drive the first sleeve 212 to rotate to the locked position. At this time, the first sleeve 212 blocks the locking pin 13 in the retraction direction of the pressing moving part 11, and the locking pin 13 is blocked in the first channel 212a, thereby achieving the locking of the hatch lock. When the pressing part 111 is pressed again, the locking pin 13 engages with the driving structure 30 again to drive the first sleeve 212 to rotate to the unlocked position. At this time, the obstruction of the locking pin 13 is removed, and the locking pin 13 moves along the first channel 212a and retracts to reset, thereby achieving the unlocking of the hatch lock.

[0085] In this embodiment, both the first sleeve 212 and the second sleeve 213 are cylindrical. The inner shape of the rotation space 221 matches the outer shape of the first sleeve 212 and the second sleeve 213. The rotation space 221 has an opening at one end facing the pressing and moving member 11. Both the first channel 212a and the second channel 213a are circular holes. The diameter of the first channel 212a is larger than the diameter of the second channel 213a, and the diameter of the second channel 213a is larger than the diameter of the pressing and moving member 11.

[0086] like Figure 3 as well as Figures 7 to 9 As shown, both the pressing and moving member 11 and the locking pin 13 are round rods, with the locking pin 13 penetrating the pressing and moving member 11 radially. The inner wall of the first channel 212a has two opposing protrusions 212b, and the gap between the two protrusions 212b forms an entrance section 212c that matches the projected shape of the entire assembly of the locking pin and the pressing and moving member 11, allowing both to pass through when the entire assembly of the locking pin 13 and the pressing and moving member 11 is aligned with the entrance section 212c. The drive structure 30 includes a first drive unit 31 and a second drive unit 32. The first driving part 31 is disposed at the inner end of the two protrusions 212b facing the second sleeve 213. The first driving part 31 is selectively located on the movement path formed by the synchronous movement of the locking pin 13 and the pressing moving part 11. It is used to impact and engage with the locking pin 13 when the locking pin 13 moves in the retraction direction with the pressing moving part 11, so as to drive the first sleeve 212 to rotate a certain angle in the first direction, thereby driving the first sleeve 212 to rotate to the locked position or the unlocked position. The second driving part 32 is disposed at the end of the second sleeve 213 that contacts the first sleeve 212. The second driving part 32 is located on the movement path of the locking pin 13. It is used to impact and engage with the locking pin 13 when the locking pin 13 moves in the extension direction with the pressing moving part 11, so as to drive the second sleeve 213 to rotate a certain angle in the first direction, thereby driving the first part or the second part of the first driving part 31 to rotate onto the movement path of the locking pin 13. Figure 9 The direction indicated by D3 is the first direction.

[0087] Understandably, when the pressing part 111 is pressed once, the locking pin 13 moves along the extension direction with the pressing moving part 11 and moves into the mating channel 211 through the inlet section 212c. Then, it impacts and engages with the first part of the second driving part 32, driving the second sleeve 213 to rotate a certain angle in the first direction. Under the action of the connecting structure 214, the first sleeve 212 is driven to rotate synchronously, thereby driving the first part of the first driving part 31 to rotate onto the moving path of the locking pin 13. After impact, the pressing moving part... The moving part 11 stops moving under the obstruction of the second driving part 32. At this time, the pressing ends. Then, under the action of the pressing reset part 12, the locking pin 13 moves along the retraction direction with the pressing moving part 11. During the movement, the locking pin 13 impacts and engages with the first part of the first driving part 31, thereby driving the first sleeve part 212 to rotate a certain angle in the first direction, and then driving the first sleeve part 212 to rotate to the locking position. At this time, the first sleeve part 212 forms an obstruction to the locking pin 13 in the retraction direction of the pressing moving part 11.

[0088] When the pressing part 111 is pressed again, the locking pin 13 moves along the extension direction from the currently blocked position with the pressing moving part 11. During the movement, the locking pin 13 impacts and engages with the second part of the second driving part 32, thereby driving the second sleeve 213 to continue rotating at a certain angle in the first direction relative to the previous position. Under the action of the connecting structure 214, the first sleeve 212 is driven to rotate synchronously, thereby driving the second part of the first driving part 31 to rotate onto the movement path of the locking pin 13. After the impact, the pressing moving part 11 stops moving under the obstruction of the second driving part 32. At this time, the pressing ends. Then, under the action of the pressing reset part 12, the locking pin 13 moves along the retraction direction with the pressing moving part 11. During the movement, the locking pin 13 impacts and engages with the second part of the first driving part 31, thereby driving the first sleeve 212 to continue rotating at a certain angle in the first direction relative to the previous position, and then driving the first sleeve 212 to rotate to the unlock position. At this time, the obstruction of the locking pin 13 is removed.

[0089] In this embodiment, there is a moving gap between the first driving part 31 and the second driving part 32 for the locking pin 13 to move, and the protrusion 212b has an arc shape that matches the inner wall of the first sleeve 212.

[0090] Figure 10 This is a schematic diagram of the structure in which the locking pin and the first part of the first driving part cooperate in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the first sleeve in its locked position in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure in which the locking pin and the second part of the first driving part cooperate in an embodiment of the present invention.

[0091] like Figures 10 to 12As shown, the first driving part 31 includes four first helical surfaces 311, which are arranged in pairs at the inner ends of two protrusions 212b. Each first helical surface 311 has a high end and a low end. Two first helical surfaces 311 on the same protrusion 212b are arranged sequentially along the circumference of the first sleeve 212, with the high end of one first helical surface 311 connected to the low end of the other first helical surface 311. The connection point has a height difference, thus forming a first blocking surface 312. The high end or low end of the first helical surface 311 on one protrusion 212b faces the low end or high end of the first helical surface 311 on the other protrusion 212b. Two first helical surfaces 311 on different protrusions 212b constitute a first part or a second part of the first driving part 31. These two first helical surfaces 311 are located in the same radial direction of the first sleeve 212, and the high ends of the two first helical surfaces 311 constituting the first part are connected to the first blocking surface 312.

[0092] Understandably, when the locking pin 13 impacts and engages with the first part of the first driving part 31, during the impact process, the locking pin 13 slides from the lower end to the upper end of the corresponding first spiral surface 311, while the first sleeve 212 rotates along the first direction until the circumferential surface of the locking pin 13 abuts against the first blocking surface 312. The first spiral surface 311 and the first blocking surface 312 work together to block the locking pin 13. At this time, the first sleeve 212 rotates to the locked position.

[0093] When the locking pin 13 impacts and engages with the second part of the first driving part 31, during the impact process, the locking pin 13 slides from the lower end to the upper end of the corresponding first spiral surface 311. At the same time, the first sleeve 212 continues to rotate in the first direction relative to the previous position until the locking pin 13 disengages from the first spiral surface 311. After disengagement, the obstruction to the locking pin 13 is removed, and the locking pin 13 moves with the pressing moving part 11 through the inlet section 212c and moves in the retraction direction to reset. At this time, the first sleeve 212 rotates to the unlock position.

[0094] Figure 13 This is a schematic diagram of the structure in which the locking pin and the first or second part of the second driving part cooperate in an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure when the second driving part blocks the locking pin in an embodiment of the present invention.

[0095] like Figure 13 and Figure 14As shown, the second drive unit 32 includes four second helical surfaces 321, which are arranged sequentially along the circumference of the second sleeve 213. Each second helical surface 321 has a high end and a low end. The high end of one second helical surface 321 connects to the low end of an adjacent second helical surface 321. The connection point of two adjacent second helical surfaces 321 has a height difference, thereby forming a second blocking surface 322. Two of the four second helical surfaces 321 constitute a first part or a second part of the second drive unit 32, and these two second helical surfaces 321 are located in the same radial direction of the second sleeve 213.

[0096] Understandably, when the locking pin 13 impacts and engages with the first part of the second driving part 32, during the impact process, the locking pin 13 slides from the high end to the low end of the corresponding second spiral surface 321. At the same time, the second sleeve 213 rotates along the first direction, and under the action of the connecting structure 214, it drives the first sleeve 212 to rotate synchronously until the circumferential surface of the locking pin 13 abuts against the second blocking surface 322. When abutting, the second spiral surface 321 and the second blocking surface 322 work together to block the locking pin 13, thereby restricting the pressing moving part 11 from continuing to move. At this time, the first part of the first driving part 31 rotates to the moving path of the locking pin 13.

[0097] When the locking pin 13 impacts and engages with the second part of the second driving part 32, during the impact process, the locking pin 13 slides from the high end to the low end of the corresponding second spiral surface 321. At the same time, the second sleeve 213 continues to rotate in the first direction relative to the previous position. Under the action of the connecting structure 214, the first sleeve 212 is driven to rotate synchronously until the circumferential surface of the locking pin 13 abuts against the second blocking surface 322. When abutting, the second spiral surface 321 and the second blocking surface 322 work together to block the locking pin 13, thereby restricting the pressing moving part 11 from continuing to move. At this time, the second part of the first driving part 31 rotates to the moving path of the locking pin 13.

[0098] Figure 15 This is a three-dimensional structural diagram of the guiding structure in an embodiment of the present invention.

[0099] like Figure 15As shown, the cover lock 100a also includes a guide structure 40, which is disposed on one end of the first sleeve 212 facing away from the second sleeve 213. This guide structure 40 engages with the locking pin 13 when the locking pin 13 moves along the extension direction with the pressing and moving member 11, thereby driving the first sleeve 212 to rotate a certain angle in the first direction or the opposite direction, thus driving the entrance section 212c to rotate to a position aligned with the entire assembly of the locking pin 13 and the pressing and moving member 11. The guide structure 40 includes four guide spiral surfaces 41, which are arranged in pairs at the outer ends of two protrusions 212b. Each guide spiral surface 41 has a high end and a low end. Two guide spiral surfaces 41 on the same protrusion 212b are arranged sequentially along the circumference of the first sleeve 212, and the high end of one guide spiral surface 41 connects to the high end of the other guide spiral surface 41, with the connection point transitioned by an outwardly convex curved surface.

[0100] Understandably, when the locking pin 13 impacts and engages with the guide spiral surface 41, during the impact process, the locking pin 13 slides from the high end to the low end of the corresponding guide spiral surface 41. At the same time, the first sleeve 212 rotates at a certain angle along the first direction or the opposite direction of the first direction, thereby driving the inlet section 212c to rotate to a position aligned with the entire assembly of the locking pin 13 and the pressing moving member 11, and then guiding the locking pin 13 to move with the pressing moving member 11 through the inlet section 212c into the engagement channel 211.

[0101] like Figure 15 As shown, two of the four guide spiral surfaces 41 form a group, and these two guide spiral surfaces 41 are located on the same radial direction of the first sleeve 212. The two ends of the locking pin 13 respectively impact and engage with the two guide spiral surfaces 41 in the same group. When the locking pin 13 impacts and engages with the two guide spiral surfaces 41 in one group, it drives the first sleeve 212 to rotate a certain angle in the first direction. When the locking pin 13 impacts and engages with the two guide spiral surfaces 41 in another group, it drives the first sleeve 212 to rotate a certain angle in the opposite direction of the first direction.

[0102] In this embodiment, the direction from the second sleeve 213 to the first sleeve 212 is the direction from the lower end of the first spiral surface 311, the second spiral surface 321, and the guide spiral surface 41 to the upper end.

[0103] like Figures 6 to 9 As shown, the connecting structure 214 includes a first engaging portion 214a and a second engaging portion 214b. The first engaging portion 214a is disposed on the end of the first sleeve 212 that contacts the second sleeve 213. The second engaging portion 214b is disposed on the end of the second sleeve 213 that contacts the first sleeve 212, and the second driving portion 32 constitutes the second engaging portion 214b. The first engaging portion 214a has a shape that matches the second engaging portion 214b, and the two engage with each other.

[0104] Understandably, the engagement between the first engagement part 214a and the second engagement part 214b enables the engagement connection between the first sleeve 212 and the second sleeve 213, thereby enabling the synchronous rotation of the first sleeve 212 and the second sleeve 213.

[0105] Figure 16 This is a cross-sectional view of the limiting structure in an embodiment of the present invention.

[0106] like Figure 16 As shown, the cover lock 100a also includes a limiting structure 50, disposed within the rotation space 221, for axial limiting of the first sleeve 212 and the second sleeve 213. The limiting structure 50 includes a first limiting surface 51 and a second limiting surface 52. The first limiting surface 51 is disposed at the first end of the rotation space 221 and movably abuts against the end of the first sleeve 212 facing away from the second sleeve 213. The second limiting surface 52 is disposed at the second end of the rotation space 221 and movably abuts against the end of the second sleeve 213 facing away from the first sleeve 212.

[0107] Understandably, the abutting engagement between the first limiting surface 51 and the first sleeve 212 and the abutting engagement between the second limiting surface 52 and the second sleeve 213 can achieve axial limiting of the first sleeve 212 and the second sleeve 213, thereby ensuring the meshing connection between the first sleeve 212 and the second sleeve 213.

[0108] In this embodiment, the first limiting surface 51 is an annular stepped surface, the second limiting surface 52 is a plane, and the center of the end of the second sleeve 213 that movably abuts against the second limiting surface 52 has an abutment protrusion 213b. The surface of the abutment protrusion 213b is spherical, and the second sleeve 213 abuts against the abutment protrusion 213b. Understandably, by setting the abutment protrusion 213b, point contact between the second sleeve 213 and the second limiting surface 52 can be achieved, thereby reducing the frictional force on the second sleeve 213 and making it more conducive to the rotation of the second sleeve 213.

[0109] like Figure 2 and Figure 3 As shown, the locking assembly 10 also includes a first housing 14 for connection with the cover and has a movable space 141 with one end open. A pressing movable member 11 is movably disposed within the movable space 141, with its first end extending to the opening of the movable space 141 and its second end sliding through the first housing 14. The pressing part 111 has an outer shape that matches the inner shape of the movable space 141, and the outer wall of the pressing part 111 is in sliding engagement with the inner wall of the movable space 141.

[0110] like Figure 2As shown, the pressing reset member 12 is a compression spring, which is sleeved on the pressing moving member 11. One end abuts against the pressing part 111, and the other end abuts against the first housing 14. Understandably, when the pressing moving member 11 moves in the extension direction, the pressing reset member 12 is compressed and stores force. After the pressing force is released, the pressing moving member 11 moves in the retraction direction to reset.

[0111] The role and effect of the embodiments

[0112] According to the hatch lock and hatch involved in this embodiment, the hatch includes a hatch body and a hatch lock. The hatch lock includes a locking pin assembly, a locking seat assembly, and a driving structure. The locking pin assembly is used to be mounted on the hatch and includes a pressing moving part, a pressing resetting part, and a locking pin. The first end of the pressing moving part is provided with a pressing part. The locking seat assembly is used to be mounted on the aircraft fuselage and includes a locking seat. The locking seat is disposed on the moving path of the pressing moving part and has a mating channel for the pressing moving part and the locking pin to extend into. When the pressing part is pressed once, the locking pin moves along the extending direction with the pressing moving part into the mating channel and engages with the driving structure to drive the locking seat to switch to the locked position. The locking seat blocks the locking pin in the retraction direction of the pressing and moving part, thereby locking the cover lock and thus locking the cover. When the pressing part is pressed again, the locking pin cooperates with the driving structure to drive the locking seat to switch to the unlocked position. At this time, the obstruction of the locking pin is removed, and the locking pin moves back to its original position along the retraction direction with the pressing and moving part, thereby unlocking the cover lock and opening the cover. This means that when opening the cover, the operator only needs to press the pressing part once. After pressing, the locking seat can automatically switch to the unlocked position, so that the locking pin can automatically remain in the unlocked state without the operator having to continuously apply force to the pressing part, making the opening of the cover more convenient.

[0113] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A hatch lock, disposed inside a hatch, for locking the hatch to the aircraft fuselage, characterized in that, include: A locking pin assembly (10) is used to be installed on the cover, including a pressing moving part (11), a pressing resetting part (12), and a locking pin (13). The first end of the pressing moving part (11) is provided with a pressing part (111), and the locking pin (13) is fixedly installed on the second end of the pressing moving part (11). When the pressing part (111) is pressed, it drives the pressing moving part (11) to move in the extension direction. The pressing resetting part (12) is used to make the pressing moving part (11) have a tendency to move and reset in the retraction direction. A locking assembly (20) for mounting on an aircraft fuselage includes a locking seat (21) disposed on the movement path of the pressing movable member (11) and having a mating channel (211) into which the pressing movable member (11) and the locking pin (13) extend. The locking seat (21) has a locking position in which the locking pin (13) is blocked in the mating channel (211) and an unlocking position in which the locking pin (13) passes through the mating channel (211). In the locking position, the locking seat (21) blocks the locking pin (13) in the retraction direction of the pressing movable member (11). In the unlocking position, the blockage of the locking pin (13) is removed. as well as A drive structure (30) is disposed within the mating channel (211) and is used to drive the locking pin (13) to move within the mating channel (211) along with the pressing moving member (11), thereby driving the lock seat (21) to switch to the locked position or the unlocked position. When the pressing part (111) is pressed once, the locking pin (13) moves along the extension direction with the pressing moving part (11) into the mating channel (211) and drives the driving structure (30) to switch the lock seat (21) to the locking position. When the pressing part (111) is pressed again, the lock seat (21) switches to the unlock position, and the lock pin (13) moves and resets along the retraction direction with the pressing moving part (11).

2. The cover lock according to claim 1, Its features are: in, The lock assembly (20) also includes a second housing (22) for connection to the aircraft fuselage and has a rotation space (221). The lock base (21) is rotatably disposed within the rotation space (221), and includes: The first cylindrical component (212) has the locking position and the unlocking position, and also has a first channel (212a) extending through both ends of its axial direction; A second sleeve (213) is disposed on the first sleeve (212) at one end opposite to the pressing and moving member (11), which is used to drive the first sleeve (212) to rotate, and has a second channel (213a) communicating with the end of the first channel (212a); and The connecting structure (214) is used to realize the synchronous rotation of the first sleeve (212) and the second sleeve (213). The first channel (212a) and the second channel (213a) together constitute the mating channel (211). When in the locked position, the locking pin (13) is blocked within the first channel (212a); when in the unlocked position, the locking pin (13) moves through the first channel (212a). When the pressing part (111) is pressed once, the first sleeve (212) rotates to the locked position; when the pressing part (111) is pressed again, the first sleeve (212) rotates to the unlocked position.

3. The cover lock according to claim 2, Its features are: in, The pressing and moving part (11) is a rod, and the locking pin (13) penetrates the pressing and moving part (11) radially. The inner wall of the first channel (212a) has two opposing protrusions (212b), and the gap between the two protrusions (212b) forms an entrance section (212c) that matches the projected shape of the entire assembly of the locking pin (13) and the pressing moving member (11) to allow passage of both when the entire assembly of the locking pin (13) and the pressing moving member (11) is aligned with the entrance section (212c). The drive structure (30) includes: A first driving unit (31) is disposed at the inner end of the two protrusions (212b) facing the second sleeve (213). The first driving unit (31) is selectively positioned on the movement path formed by the locking pin (13) moving synchronously with the pressing moving member (11). It is used to engage with the locking pin (13) when the locking pin (13) moves with the pressing moving member (11) in the retraction direction, so as to drive the first sleeve (212) to rotate a certain angle in the first direction, thereby driving the first sleeve (212) to rotate to the locked position or the unlocked position; and The second driving part (32) is disposed on the second sleeve (213) at the end that contacts the first sleeve (212). The second driving part (32) is located on the moving path of the locking pin (13). It is used to engage with the locking pin (13) when the locking pin (13) moves along the extension direction with the pressing moving part (11), so as to drive the second sleeve (213) to rotate a certain angle along the first direction, thereby driving the first part or the second part of the first driving part (31) to rotate onto the moving path of the locking pin (13). When the pressing part (111) is pressed once, the locking pin (13) first impacts and engages with the first part of the second driving part (32) and then impacts and engages with the first part of the first driving part (31), thereby driving the first sleeve (212) to rotate to the locking position. When the pressing part (111) is pressed again, the locking pin (13) first impacts and engages with the second part of the second driving part (32) and then impacts and engages with the second part of the first driving part (31), thereby driving the first sleeve (212) to rotate to the unlocked position.

4. The cover lock according to claim 3, characterized in that: in, The first driving part (31) includes four first helical surfaces (311), which are arranged in pairs at the inner ends of the two protrusions (212b). The first helical surface (311) has a high end and a low end. Two first helical surfaces (311) on the same protrusion (212b) are arranged sequentially along the circumference of the first sleeve (212), and the high end of one of the first helical surfaces (311) is connected to the low end of the other first helical surface (311). The connection between the two has a height difference, thereby forming a first blocking surface (312). The high end or low end of the first helical surface (311) on one of the protrusions (212b) faces the low end or high end of the first helical surface (311) on the other protrusion (212b). Two first helical surfaces (311) on different protrusions (212b) constitute the first part or the second part of the first drive part (31). The two first helical surfaces (311) are located on the same radial direction of the first sleeve (212), and the high end of the two first helical surfaces (311) constituting the first part is connected to the first blocking surface (312).

5. The cover lock according to claim 3 or 4, characterized in that: in, The second drive unit (32) includes four second helical surfaces (321), which are arranged sequentially along the circumference of the second sleeve (213). The second helical surface (321) has a high end and a low end, and the high end of one of the second helical surfaces (321) is connected to the low end of another adjacent second helical surface (321). There is a height difference at the connection point of the two adjacent second helical surfaces (321), thereby forming a second blocking surface (322). Two of the four second helical surfaces (321) constitute the first or second part of the second drive unit (32), and the two second helical surfaces (321) are located on the same radial direction of the second sleeve (213).

6. The cover lock according to claim 3 or 4, characterized in that, Also includes: A guide structure (40) is disposed on one end of the first sleeve (212) facing away from the second sleeve (213). It is used to engage with the locking pin (13) when the locking pin (13) moves along the extension direction with the pressing moving member (11), thereby driving the first sleeve (212) to rotate a certain angle along the first direction or the opposite direction. This drives the inlet section (212c) to rotate to a position aligned with the entire assembly of the locking pin (13) and the pressing moving member (11). The guide structure (40) includes four guide spiral surfaces (41). The four guide spiral surfaces (41) are arranged in pairs at the outer ends of the two protrusions (212b). The guide spiral surfaces (41) have a high end and a low end. The two guide spiral surfaces (41) on the same protrusion (212b) are arranged sequentially along the circumference of the first sleeve (212). The high end of one guide spiral surface (41) is connected to the high end of the other guide spiral surface (41), and the connection between the two is transitioned by an outwardly convex curved surface.

7. The cover lock according to any one of claims 3-4, Its features are: in, The connection structure (214) includes: A first engaging portion (214a) is provided on the first sleeve (212) at one end that contacts the second sleeve (213); and The second engaging portion (214b) is disposed on the second sleeve (213) at one end that contacts the first sleeve (212), and the second driving portion (32) constitutes the second engaging portion (214b). The first engaging portion (214a) has a shape that matches the second engaging portion (214b), and the two engage with each other.

8. The cover lock according to claim 7, characterized in that, Also includes: A limiting structure (50), disposed within the rotation space (221), is used for axial limiting of the first sleeve (212) and the second sleeve (213), comprising: A first limiting surface (51) is disposed at the first end of the rotation space (221) and movably abuts against the end of the first sleeve (212) facing away from the second sleeve (213); and The second limiting surface (52) is disposed at the second end of the rotation space (221) and movably abuts against the end of the second sleeve (213) facing away from the first sleeve (212).

9. The cover lock according to any one of claims 1-4, characterized in that: in, The locking assembly (10) further includes a first housing (14) for connection with the cap and having a movable space (141) with an opening at one end. The pressing movable member (11) is movably disposed within the movable space (141), with its first end extending to the opening of the movable space (141) and its second end sliding through the first housing (14). The pressing part (111) has an outer shape that matches the inner shape of the moving space (141), and the outer wall of the pressing part (111) is in sliding fit with the inner wall of the moving space (141). The pressing reset component (12) is a compression spring, which is sleeved on the pressing moving component (11), with one end abutting against the pressing part (111) and the other end abutting against the first housing (14).

10. A lid, characterized in that, Includes the cover lock as described in any one of claims 1-9.

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