A luggage compartment door lock device

Abstract

The invention discloses a luggage door lock device, wherein the connecting rod A end is provided at the handle B end and is fastened thereto, the connecting rod B end is provided in the door lock mechanism and is rotatably connected thereto, the latch and the door lock mechanism are docked, the handle is installed on the box body, the door lock mechanism is arranged on the right side of the box body, and the latch is arranged on the box shell, the handle is pulled to drive the connecting rod to drive the door lock mechanism to disengage the latch, at which time the door lock mechanism is opened, and the handle is pushed to drive the connecting rod to drive the door lock mechanism and the latch to dock, at which time the door lock mechanism is closed, and the door lock mechanism is arranged on both sides of the box body, and the handle is pulled to control the opening and closing of the door lock mechanism, so as to adapt to the locking function of the pull-down luggage case, reduce the stress of the object in the box on the door lock, and improve the safety, the left limit hole and the right limit hole are provided to improve the working smoothness of the door lock mechanism, a regular polygon connecting hole is provided on the handle B end and the door lock mechanism, and the same regular polygon connecting head is provided at both ends of the connecting rod, so that connecting rods of different lengths can be selected for luggage cases of different sizes, thereby improving the usage scenarios of the door lock device.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and in particular to a luggage compartment door lock device. Background Art

[0002] Most luggage compartment doors on existing aircraft flip up to open, which takes up a large amount of space when opened. The door lock of the luggage compartment door is usually a single lock mechanism and is located in the center of the compartment door (single lock means that the door lock is installed in the middle of the compartment door to lock the compartment door and the compartment body). When there are many objects in the compartment, the door lock mechanism of this single lock mechanism may generate a downward load on the compartment door. This load force will be concentrated on the door lock part. When the load is too heavy, the compartment door and the compartment body will separate, which may cause the luggage in the compartment to fall out. To avoid this situation, the luggage compartment has been improved. The improved luggage compartment is a pull-down luggage compartment, that is, the improved luggage compartment is opened by flipping the compartment body. The improved luggage compartment saves opening space, but the traditional single lock mechanism cannot meet the locking function and performance requirements of the pull-down luggage compartment. Summary of the Invention

[0003] Purpose of the invention: The present invention provides a luggage compartment door lock device for locking a pull-down luggage compartment, thereby improving the safety of using the luggage compartment.

[0004] Technical solution: A luggage compartment door lock device includes a handle, a connecting rod, a door lock mechanism, and a latch. The connecting rod A end is arranged at the handle B end and is fastened thereto, the connecting rod B end is arranged in the door lock mechanism and is rotationally connected thereto, the latch and the door lock mechanism are docked, the handle is installed on the box body, the door lock mechanism is arranged on the right side of the box body, and the latch is arranged on the box shell. Pulling the handle drives the connecting rod to drive the door lock mechanism to disengage from the latch. At this time, the door lock mechanism is opened. Pushing the handle drives the connecting rod to drive the door lock mechanism and the latch to dock. At this time, the door lock mechanism is closed.

[0005] Furthermore, the door lock mechanism includes a lock shell, a drive link device, and a locking device. The drive link device and the locking device are both arranged in the lock shell. The locking device is arranged at the front end of the lock shell and fixedly connected to it. The front end of the drive link device is docked with the locking device. The B end of the connecting rod is arranged at the rear end of the lock shell and is rotatably connected to it. The rear end of the drive link device is tightly connected to the connecting rod, and the lock latch is above the locking device and docked with it.

[0006] Furthermore, the driving connecting rod device includes a main connecting rod, a tension spring, a driving connecting rod, a fixed shaft, a rotating shaft, and a crank. The front end of the main connecting rod is rotatably connected to the locking device through the fixed shaft, and the front end working part of the main connecting rod is docked with the locking device. A fixed protrusion is provided on the main connecting rod outside the locking device, one end of the tension spring is provided on the fixed protrusion, and the other end is provided at the bottom of the locking device. A rotating shaft is provided at the rear end of the main connecting rod, and a connecting hole is provided at the front end of the driving connecting rod, and the rotating shaft is docked with the connecting hole. The crank is sleeved on the connecting rod and rotatably connected to it, the crank is fixedly connected to the lock shell, and the rear end of the driving connecting rod is sleeved on the connecting rod and tightly connected.

[0007] Furthermore, a limiting hole is provided on the lock housing, and the limiting hole is located at the connection between the main connecting rod and the driving connecting rod. The rotating shaft is docked in the limiting hole. The setting of the limiting hole limits the rotation between the main connecting rod and the driving connecting rod to prevent excessive rotation.

[0008] Furthermore, the locking device includes a mounting support, a baffle, a left lock hook, a right lock hook, a left torsion spring, a right torsion spring, and a fixing pin, the baffle being arranged on the lock housing, the mounting support being arranged on the outside of the baffle and being fastened thereto, the left lock hook and the right lock hook being respectively arranged between the mounting support and the baffle through the fixing pin, the lower end of the left lock hook and the lower end of the right lock hook being docked to form a bayonet, the front end working part of the driving connecting rod device being docked with the bayonet, the lock latch being docked between the left lock hook and the right lock hook, a left limiting pin being provided on the left side of the left lock hook, the left limiting pin being located on one side of the baffle, the left torsion spring being arranged between the mounting support and the baffle through the fixing pin, the left The torsion spring is located at one side of the left lock hook, one end of the left torsion spring is docked with the mounting support, and the other end is docked with the left limit pin above it. A right limit pin is provided on the left side of the right lock hook, and the right limit pin is located on one side of the baffle. The right torsion spring is arranged between the mounting support and the baffle through the fixing pin. The right torsion spring is located at one side of the right lock hook, one end of the right torsion spring is docked with the mounting support, and the other end is docked with the right limit pin above it. A left limit hole and a right limit hole are provided on the baffle, the left limit pin is docked in the left limit hole, and the right limit hole is docked in the right limit hole. The setting of the left limit hole prevents the left lock hook from excessive rotation, and the setting of the right limit hole prevents the right lock hook from excessive rotation.

[0009] Furthermore, the left lock hook is provided with a left limit groove, which is located above the left limit pin. The setting of the left limit groove is to limit and position the rotation of the left lock hook to prevent excessive rotation. The right lock hook is provided with a right limit groove, which is located above the right limit pin. The setting of the right limit groove is to limit and position the rotation of the right lock hook to prevent excessive rotation.

[0010] Furthermore, the lock latch includes a locking rod and a locking pin. Two locking rods are provided, and the two locking rods are arranged in parallel. The locking pin is provided at the lower end between the two locking rods, and the locking pin is connected between the left lock hook and the right lock hook.

[0011] Furthermore, the handle B end and the door lock mechanism are both provided with a regular polygonal connecting hole, and the connecting rod (A end and B end are both provided with a regular polygonal connecting head matching the regular polygonal connecting hole, the regular polygonal connecting head at the connecting rod A end is arranged in the regular polygonal connecting hole at the handle B end, and the regular polygonal connecting head at the connecting rod B end is arranged in the regular polygonal connecting hole of the door lock mechanism. The setting of this mechanism enables the door lock device to adapt to boxes of different sizes.

[0012] Furthermore, the handle A end is provided with the same structure as the handle B end, and the left-right symmetrical arrangement increases the stability of the door lock device.

[0013] Beneficial effects: The advantage of the present invention is that the door lock mechanism is arranged on both sides of the box body, and the opening and closing of the door lock mechanism is controlled by pulling the handle, which is suitable for the locking function of the pull-down suitcase, reduces the stress of the objects in the box on the door lock, and improves safety. The setting of the left limit hole and the right limit hole improves the working smoothness of the door lock mechanism. Regular polygonal connecting holes are set on the handle B and the door lock mechanism, and the same regular polygonal connecting heads are set at both ends of the connecting rod. Connecting rods of different lengths can be selected according to suitcases of different sizes, which improves the use scenarios of the door lock device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the door lock device;

[0015] Figure 2 for Figure 1 The partially enlarged schematic diagram C;

[0016] Figure 3 This is a schematic diagram of the door lock mechanism;

[0017] Figure 4 It is a schematic diagram of the overall combination of the driving connecting rod device and the locking device;

[0018] Figure 5 It is a schematic diagram of the internal combination of the driving connecting rod device and the locking device;

[0019] Figure 6 This is a schematic diagram of the driving connecting rod device and the locking device in the open state;

[0020] Figure 7 It is a schematic diagram of the driving connecting rod device and the locking device in the closed state;

[0021] Figure 8 Schematic diagram of the latch structure;

[0022] Figure 9 This is a schematic diagram for door lock equipment use. DETAILED DESCRIPTION

[0023] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0024] A luggage compartment door lock device, such as Figure 1-2 As shown, it includes a handle 1, a connecting rod 2, a door lock mechanism 3, and a latch 4. One end of the handle 1 is end A, and the other end is end B. It can also be understood that end A and end B are on both sides of the handle 1. One end of the connecting rod 2 is end A, and the other end is end B. The end A of the connecting rod 2 is arranged on the end B of the handle 1 and is tightly connected to it. It can be understood that the end B of the handle 1 and the end A of the connecting rod 2 are tightly connected. The tight connection can be understood as the connecting rod 2 and the handle 1 cannot rotate with each other after installation, that is, it can be understood that the connecting rod 2 will also rotate when the handle 1 is rotated. The end B of the connecting rod 2 is arranged in the door lock mechanism 3 and is rotatably connected to it. It can be understood that the rotation of the connecting rod 2 drives the door lock mechanism 3 to rotate, the latch 4 is docked with the door lock mechanism 3, and the latch 4 controls the operation of the door lock mechanism 3. The handle 1A Regular polygonal connecting holes are provided on the door lock mechanism 3, and regular polygonal connecting heads matching the regular polygonal connecting holes are provided on the A and B ends of the connecting rod 2. The regular polygonal connecting head at the A end of the connecting rod is arranged in the regular polygonal connecting hole at the B end of the handle 1, and the regular polygonal connecting head at the B end of the connecting rod is arranged in the regular polygonal connecting hole of the door lock mechanism 3, that is, the regular polygonal connecting head can be used in conjunction with the regular polygonal connecting hole. This connection method makes the door lock mechanism 3 easy to install and the corresponding length of the connecting rod 2 can be selected according to the size of the box, so that the door lock mechanism 3 can meet the use of boxes of various sizes. The handle 1A end is provided with the same structure as the handle 1B end. Its main purpose is to install the door lock mechanism 3 on both sides of the left and right sides of the box at the same time during installation to improve the stability of use.

[0025] The door lock mechanism 3 includes a lock housing 31, a driving connecting rod device 32, and a locking device 33. Figure 3-7When the cam 33 is unlocked, the cam 33 is unlocked and the latch 33 is engaged with the latch 33. The cam 33 is engaged with the latch 33 and the latch 33 is engaged with the lock member 31.

[0026] The driving connecting rod device 32 includes a main connecting rod 321, a tension spring 322, a driving connecting rod 323, a fixed shaft 324, a rotating shaft 325, and a crank 326. The front end of the main connecting rod 321 is arranged in the locking device 33. The main connecting rod 321 in the locking device 33 is rotatably connected to the locking device 33 through the fixed shaft 324, that is, the front end of the main connecting rod 321 is rotatably connected to the locking device 33 through the fixed shaft 324 in the locking device 33. It can be understood that the main connecting rod 321 rotates around the fixed shaft 324, and the main connecting rod 321 rotates around the fixed shaft 324. The front end of the connecting rod 321 is connected to the locking device 33 at the working position. A fixing protrusion 327 is provided on the main connecting rod 321 outside the locking device 33. One end of the tension spring 322 is provided on the fixing protrusion 327, and the other end is provided at the bottom of the locking device 33. The function of the tension spring 322 is to tighten the main connecting rod 321 toward the locking device 33. A rotating shaft 325 is provided at the rear end of the main connecting rod 321 to drive the front end of the connecting rod 323 to be provided with a connecting hole 328. The connecting hole 328 is a long strip connecting hole 328. Its purpose is to make the main connecting rod 321 The rod 321 and the driving connecting rod 323 can rotate freely when rotating, the rotating shaft 325 and the connecting hole 328 are docked, the crank 326 is sleeved on the connecting rod 2 and is rotatably connected thereto, and it can be understood that the connecting rod 2 and the crank 326 can rotate with each other, the crank 326 and the lock housing 31 are fixedly connected, and the rear end of the driving connecting rod 323 is sleeved on the connecting rod 2 and is tightly connected. The tight connection can be understood as when the connecting rod 2 rotates, the driving connecting rod 323 also rotates. When the driving connecting rod 323 rotates, the front end of the driving connecting rod 323 and When the main connecting rod 321 is rotated between the rear ends, the main connecting rod 321 will rotate around the fixed axis 324 to control the docking of the front working end of the main connecting rod 321 and the locking device 33. A limiting hole 311 is provided on the lock shell 31. The limiting hole 311 is located at the connection between the main connecting rod 321 and the driving connecting rod 323, and the rotating shaft 325 is docked in the limiting hole 311. The purpose of setting the limiting hole 311 is to limit the rotation between the driving connecting rod 323 and the main connecting rod 321 to prevent it from rotating excessively and being difficult to reset.

[0027] The locking device 33 includes a mounting support 331, a blocking piece 332, a left locking hook 333, a right locking hook 334, a left torsion spring 335, a right torsion spring 336, and a fixing pin 337. The blocking piece 332 is provided on the lock housing 31, and the mounting support 331 is provided on the outside of the blocking piece 332, that is, it is installed in the order of the mounting support 331, the blocking piece 332, and the lock housing 31, and the mounting support 331 and the blocking piece 332 are fastened together. The left locking hook 333 and the right locking hook 334 are respectively provided between the mounting support 331 and the blocking piece 332 by the fixing pin 337. It can be understood that the left locking hook 333 and the right locking hook 334 can rotate between the mounting support 331 and the blocking piece 332, and the left locking hook 333 and the right locking hook 334 are correspondingly provided, that is, the left locking hook 333 and the right locking hook 334 are opposite. The left locking cam 333 is provided with a left stop pin 339 on the left side of the left locking cam 333, and the left stop pin 339 is located on one side of the baffle 332. The left torsion spring 335 is provided between the mounting bracket 331 and the baffle 332 through the fixing pin 337. The cam 338 is located on the left side of the cam 339 and the cam 339 is located on the right side of the cam 339. The cam 338 is located on the right side of the cam 339 and the cam 339 is located on the left side of the cam 339. The right torsion spring 336 is sleeved on the fixing pin 337 between 331 and the blocking piece 332. The right torsion spring 336 is located on one side of the right lock hook 334. One end of the right torsion spring 336 is connected to the mounting bracket 331, and the other end is connected to the right limit pin 340 above it, that is, the right torsion spring 336 exerts downward pressure on the right limit pin 340. The blocking piece 332 is provided with a left limit hole 342 and a right limit hole 342. The left limit pin 339 is connected to the left limit hole 342, and the right limit hole 342 is connected to the right limit hole 342. The function of the left limit hole 342 is to avoid the left limit pin 339 and at the same time limit the rotation of the left lock hook 333 around the fixing pin 337 to prevent it from being unable to reset after excessive rotation. The function of the right limit hole 342 is the same as that of the left limit hole 342.

[0028] The left lock hook 333 is provided with a left limit groove 343, and the left limit groove 343 is located above the left limit pin 339. The right lock hook 334 is provided with a right limit groove 344, and the right limit groove 344 is located above the right limit pin 340. It can be understood that when the left lock hook 333 is rotated to open, it needs to stop rotating after rotating to a certain position. At this time, the left torsion spring 335 just docks into the left limit groove 343 to prevent the left lock hook 333 from continuing to rotate. Similarly, the right limit groove 344 on the right lock hook 334 has the same function.

[0029] The latch 4 includes a locking rod 41 and a locking pin 42. Figure 8 As shown, two locking rods 41 are provided, and the two locking rods 41 are provided in parallel. It can be understood that the two locking rods 41 have the same length, and the positive projection of one locking rod 41 to the other locking rod 41 coincides. The locking pin 42 is provided at the lower end between the two locking rods 41, and the locking pin 42 is docked between the left lock hook 333 and the right lock hook 334. It can be understood that the locking rod 41 moves downward and then the locking pin 42 enters between the left lock hook 333 and the right lock hook 334, touches the left lock hook 333 and the right lock hook 334, and presses the left lock hook 333 and the right lock hook 334 downward, so that the left lock hook 333 and the right lock hook 334 are reset.

[0030] The usage and principle of door lock equipment are: Figure 9When the handle 1 is pulled down, the handle 1 and the door lock mechanism 3 on both sides are connected, and the link 2 is fixed on the door lock mechanism 3 to prevent it from being separated. The latch 4 is installed on the box shell. When the handle 1 is pulled down, the box body moves downward, and the handle 1 will rotate with the link 2. The link 2 drives the driving link 323 at the left and right ends to rotate, and then drives the front end of the link 323 to drive the rear end of the main connecting rod 321 to rotate upward. At this time, the main connecting rod 321 rotates around the fixed axis 324, and the front end of the main connecting rod 321 disengages from the bayonet 338. As the box body rotates downward, the latch 4 also disengages from the left lock hook 333 and the right lock hook 334. The left torsion spring 335 presses the left lock hook 333 to rotate. As the left lock hook 333 rotates, the left torsion spring 335 will enter the left limit groove 343, and the left lock hook 333 stops rotating. When the cam 330 is unlocked, the latch 333 is unlocked and the lock 334 is unlocked.

Claims

1. A luggage compartment door lock device, characterized in that: The invention comprises a handle (1), a connecting rod (2), a door lock mechanism (3), and a latch (4); the A end of the connecting rod (2) is arranged on the B end of the handle (1) and is fastened thereto; the B end of the connecting rod (2) is arranged in the door lock mechanism (3) and is rotatably connected thereto; the latch (4) and the door lock mechanism (3) are docked; the handle (1) is installed on the box body; the door lock mechanism (3) is arranged on the right side of the box body; the latch (4) is arranged on the box shell; pulling the handle (1) drives the connecting rod (2) to drive the door lock mechanism (3) to disengage from the latch (4); at this time, the door lock mechanism (3) is opened; pushing the handle (1) drives the connecting rod (2) to drive the door lock mechanism (3) to dock with the latch (4); at this time, the door lock mechanism (3) is closed.

2. The luggage compartment door lock device according to claim 1, characterized in that: The door lock mechanism (3) comprises a lock housing (31), a driving connecting rod device (32), and a locking device (33). The driving connecting rod device (32) and the locking device (33) are both arranged in the lock housing (31). The locking device (33) is arranged at the front end of the lock housing (31) and is fixedly connected thereto. The front end of the driving connecting rod device (32) and the locking device (33) are docked. The B end of the connecting rod (2) is arranged at the rear end of the lock housing (31) and is rotatably connected thereto. The rear end of the driving connecting rod device (32) and the connecting rod (2) are tightly connected. The lock latch (4) is above the locking device (33) and is docked therewith.

3. The luggage compartment door lock device according to claim 2, characterized in that: The driving connecting rod device (32) includes a main connecting rod (321), a tension spring (322), a driving connecting rod (323), a fixed shaft (324), a rotating shaft (325), and a crank (326). The front end of the main connecting rod (321) is rotatably connected to the locking device (33) through the fixed shaft (324). The front end of the main connecting rod (321) is connected to the locking device (33) at a working position. A fixing protrusion (327) is provided on the main connecting rod (321) outside the locking device (33). One end of the spring (322) is arranged on the fixed protrusion (327), and the other end is arranged at the bottom of the locking device (33). The rear end of the main connecting rod (321) is provided with a rotating shaft (325), and the front end of the driving connecting rod (323) is provided with a connecting hole (328). The rotating shaft (325) and the connecting hole (328) are connected to each other. The crank (326) is sleeved on the connecting rod (2) and rotatably connected thereto. The crank (326) and the lock housing (31) are fixedly connected. The rear end of the driving connecting rod (323) is sleeved on the connecting rod (2) and fastened.

4. The luggage compartment door lock device according to claim 3, characterized in that: The lock housing (31) is provided with a limiting hole (311), the limiting hole (311) is located at the connection between the main connecting rod (321) and the driving connecting rod (323), and the rotating shaft (325) is docked in the limiting hole (311).

5. The luggage compartment door lock device according to claim 2, characterized in that: The locking device (33) includes a mounting support (331), a baffle (332), a left lock hook (333), a right lock hook (334), a left torsion spring (335), a right torsion spring (336), and a fixing pin (337). The baffle (332) is provided on the lock housing (31). The mounting support (331) is provided on the outside of the baffle (332) and is fastened thereto. The left lock hook (333) and the right lock hook (334) are respectively provided on the mounting support (331) and the baffle through the fixing pin (337). (332), the lower end of the left lock hook (333) and the lower end of the right lock hook (334) are connected to form a bayonet (338), the front end working part of the driving connecting rod device (32) is connected to the bayonet (338), the lock latch (4) is connected between the left lock hook (333) and the right lock hook (334), a left limit pin (339) is provided on the left side of the left lock hook (333), and the left limit pin (339) is located on one side of the blocking plate (332), and the left torsion spring (335) is connected to the fixing pin (334) by the fixing pin (335). 37) is provided between the mounting support (331) and the baffle (332), the left torsion spring (335) is located on one side of the left lock hook (333), one end of the left torsion spring (335) is docked with the mounting support (331), and the other end is docked with the left limit pin (339) above it, a right limit pin (340) is provided on the left side of the right lock hook (334), and the right limit pin (340) is located on one side of the baffle (332), and the right torsion spring (336) is provided on the mounting support (331) through the fixing pin (337). The right torsion spring (336) is located on one side of the right lock hook (334) between the mounting support (331) and the blocking piece (332). One end of the right torsion spring (336) is docked with the mounting support (331), and the other end is docked with the right limiting pin (340) above it. The blocking piece (332) is provided with a left limiting hole (341) and a right limiting hole (342). The left limiting pin (339) is docked in the left limiting hole (341), and the right limiting hole (342) is docked in the right limiting hole (342).

6. The luggage compartment door lock device according to claim 5, characterized in that: The left lock hook (333) is provided with a left limiting groove (343), and the left limiting groove (343) is located above the left limiting pin (339). The right lock hook (334) is provided with a right limiting groove (344), and the right limiting groove (344) is located above the right limiting pin (340).

7. The luggage compartment door lock device according to claim 5, characterized in that: The lock latch (4) includes a lock rod (41) and a lock pin (42). Two lock rods (41) are provided. The two lock rods (41) are provided in parallel. The lock pin (42) is provided at the lower end between the two lock rods (41). The lock pin (42) is connected between the left lock hook (333) and the right lock hook (334).

8. The luggage compartment door lock device according to claim 1, characterized in that: The handle (1) and the door lock mechanism (3) are both provided with regular polygonal connecting holes, and the connecting rod (2) is provided with regular polygonal connecting heads matching the regular polygonal connecting holes at the A end and the B end. The regular polygonal connecting head at the A end of the connecting rod (2) is arranged in the regular polygonal connecting hole at the B end of the handle (1), and the regular polygonal connecting head at the B end of the connecting rod (2) is arranged in the regular polygonal connecting hole of the door lock mechanism (3).

9. A luggage compartment door lock device according to any one of claims 1 to 8, characterized in that: The A end of the handle (1) is provided with the same structure as the B end of the handle (1).

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