Electric outward swing door

Abstract

The present invention discloses an electric outward swinging cabin door, which relates to the technical field of automobile parts, including a door panel, a door frame, a swing arm mechanism and an unlocking mechanism; the door panel can be movably arranged on the door frame by means of the swing arm mechanism; locking machines are provided on the left and right sides of the back of the door panel, and sliding locks that cooperate with the locking machines are provided on the left and right side walls of the door frame so as to slide back and forth; an unlocking mechanism is provided on the middle part of the back of the door panel, and the unlocking mechanism includes a pull rod, a first transfer mechanism and a first electric actuator, and the two ends of the first transfer mechanism are respectively connected to the locking machines on the left and right sides by pull rods, and the two locking machines are driven to rotate synchronously under the drive of the first electric actuator. The present invention changes the automatic unlocking function of the cabin door from pneumatic unlocking to electric unlocking, thereby avoiding the problem of failure of the automatic unlocking function due to insufficient air pressure in the vehicle, and has a simple structure and a compact layout, does not require air path arrangement, and greatly optimizes the space in the cabin.

Description

Technical Field

[0001] This invention relates to the field of automotive parts technology, and in particular to an electric outward-swinging hatch. Background Technology

[0002] Traditional bus luggage compartment doors are mostly pneumatically driven, requiring a cylinder as the primary actuator and a gas spring as a secondary actuator to move the swing arm, thereby opening and closing the luggage compartment door. The cylinder control device for this type of luggage compartment door is located inside the luggage compartment, which not only occupies space but also affects the door's opening angle. Chinese Patent Application No. 201910841532.0 discloses an electric luggage compartment door. This technical solution uses a combination of electric struts and gas springs to drive the opening and closing of the door, overcoming the shortcomings of traditional luggage compartment doors and effectively improving the space utilization rate of the luggage compartment.

[0003] However, this technical solution has the following shortcomings: First, the unlocking mechanism in this technical solution still adopts a pneumatic drive, which requires an air source to be connected to the chassis, and then the opening and closing of the air circuit is controlled by a solenoid valve to drive the cylinder to move and thus achieve unlocking. This not only makes the air circuit layout cumbersome and takes up a lot of space, but also affects the cylinder drive when the air pressure of the whole vehicle is insufficient, causing the unlocking mechanism to fail. Second, the door lock tightening mechanism in this technical solution is a four-bar structure, which requires an additional electric strut to drive the four-bar action to tighten the luggage compartment door. The structure is complex, there are many parts, installation is troublesome, and it takes up space. Summary of the Invention

[0004] The present invention provides an electric outward swing hatch, the main purpose of which is to solve the above-mentioned problems.

[0005] The present invention adopts the following technical solution:

[0006] An electric outward-swinging hatch includes a door panel, a door frame, a swing arm mechanism, and an unlocking mechanism. The door panel is movably mounted on the door frame via the swing arm mechanism. Locking mechanisms are provided on the left and right sides of the back of the door panel, and sliding latches that cooperate with the locking mechanisms are provided on the left and right side walls of the door frame. The unlocking mechanism is provided in the middle of the back of the door panel. The unlocking mechanism includes a pull rod, a first transfer mechanism, and a first electric actuator. The two ends of the first transfer mechanism are respectively connected to the locking mechanisms on the left and right sides via the pull rod, and the first electric actuator drives the two locking mechanisms to rotate synchronously.

[0007] Furthermore, the aforementioned first transfer mechanism includes a left gear and a right gear that mesh with each other. The left gear and the right gear are respectively connected to the locking mechanisms on the left and right sides via the aforementioned pull rod, and the right gear is powered by the aforementioned first electric actuator.

[0008] Furthermore, the unlocking mechanism also includes a first linkage and a hatch lock with a handle. The hatch lock is located in the middle of the door panel, and the lock cylinder gear of the hatch lock is connected to the first transfer mechanism through the first linkage.

[0009] Furthermore, the unlocking mechanism also includes a second transfer mechanism, a second link, and a first pull rope. The second transfer mechanism includes a rotating plate rotatably disposed in the middle of the door panel. One end of the rotating plate is connected to the first electric actuator via the first pull rope, and the other end of the rotating plate is connected to the lock cylinder gear of the door lock via the second link.

[0010] Furthermore, the other end of the aforementioned rotating plate is provided with a free-stroke groove, and the aforementioned second connecting rod is movably disposed within the free-stroke groove.

[0011] Furthermore, the aforementioned sliding latch includes a latch, a sliding sleeve, a second electric actuator, and a second pull rope; the sliding sleeve is fixed to the side wall of the door frame, the latch is slidably installed in the sliding sleeve, and is connected to the second electric actuator via the second pull rope.

[0012] Furthermore, the electric outward-swinging hatch also includes an ECU control box that is electrically connected to the aforementioned first and second electric actuators.

[0013] Furthermore, the aforementioned swing arm mechanism includes a support shaft, bent arms, an electric strut, and a gas spring. The support shaft is rotatably pivotally connected to the door frame. One end of each of the two bent arms is fixed to the support shaft, and the other end is hinged to the back of the door panel. One end of each of the electric strut and the gas spring is hinged to the door frame, and the other end is hinged to the bent arms.

[0014] Furthermore, a sealing strip is provided between the contact points of the door frame and the door panel.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention overcomes the shortcomings of the prior art by changing the automatic unlocking function of the hatch from pneumatic unlocking to electric unlocking, thus avoiding the problem of automatic unlocking function failure due to insufficient air pressure in the whole vehicle. In addition, the structure is simple and compact, and there is no need for air circuit layout, which greatly optimizes the cabin space.

[0017] 2. The unlocking mechanism of the present invention has a sophisticated structure, combining automatic and manual unlocking functions, and the two unlocking functions do not interfere with each other, making it convenient to operate and highly reliable.

[0018] 3. The sliding latch of the present invention is driven by a second electric actuator. It is not only simple in structure and ingenious in design, but also convenient to operate, firm and reliable, and effectively improves the opening and closing performance and sealing performance of the hatch.

[0019] 4. The swing arm mechanism of the present invention adopts an electric strut drive, which has a simple structure, is easy to install, occupies little space, and has a large door opening, making it convenient to load and unload luggage.

[0020] In summary, this invention optimizes the design of existing electric outward-swinging hatches. The improved swing arm mechanism, unlocking mechanism, and sliding latch are all electrically driven, eliminating the need for an external air source and air circuit layout. This greatly optimizes the cabin space and offers advantages such as simple structure, compact layout, convenient installation, and high reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the unlocking mechanism in this invention.

[0023] Figure 3 This is a schematic diagram of the sliding latch structure in this invention.

[0024] Figure 4 This is a schematic diagram of the locking mechanism in this invention. Detailed Implementation

[0025] Specific embodiments of the present invention will now be described with reference to the accompanying drawings. Many details are described below to provide a comprehensive understanding of the invention; however, those skilled in the art will be able to implement the invention without these details.

[0026] Reference Figure 1 An electric outward-swinging hatch includes a door panel 1, a door frame 2, and a swing arm mechanism 3. The door panel 1 is movably mounted on the door frame 2 via the swing arm mechanism 3. Specifically, the swing arm mechanism 3 includes a support shaft 31, bent arms 32, electric struts 33, and gas springs 34. The support shaft 31 is rotatably pivotally connected to the door frame 2. One end of each bent arm 32 is fixed to the support shaft 31, and the other end is hinged to the back of the door panel 1. One end of each electric strut 33 and gas spring 34 is hinged to the door frame 2, and the other end is hinged to the bent arms 32.

[0027] Reference Figure 1 , Figure 3 and Figure 4Locking mechanisms 11 are provided on the left and right sides of the back of the door panel 1, and sliding latches 21 that cooperate with the locking mechanisms 11 are provided on the left and right side walls of the door frame 2. Specifically, the sliding latches 21 include latches 211, sliding sleeves 212, second electric actuators 213, and second pull ropes 214; the sliding sleeves 212 are fixed to the side walls of the door frame 2, and the latches 211 are slidably installed in the sliding sleeves 212 and connected to the second electric actuators 213 through the second pull ropes 214. A sealing strip is installed between the door frame 2 and the door panel 1 at the contact point. When the hatch needs to be closed, the swing arm mechanism 3 first moves the door panel 1 downward to the pre-closed state, so that the locking hook 111 of the locking mechanism 11 engages with the locking latch 211. At this time, the door panel does not compress the sealing strip. Then, the second electric actuator 213 drives the locking latch 211 through the second pull rope 214 to pull the locking mechanism 11 inward, so that the door panel 1 completely compresses the sealing strip, thereby achieving complete closure of the hatch. The sliding latch 21 is driven by the second electric actuator 213. It is not only simple in structure and ingenious in design, but also convenient to operate, sturdy and reliable, effectively improving the opening and closing performance and sealing performance of the hatch.

[0028] Reference Figures 1 to 4 An unlocking mechanism 4 is provided in the center of the back of the door panel 1. This unlocking mechanism 4 includes a pull rod 41, a first transfer mechanism 42, and a first electric actuator 43. The first transfer mechanism 42 includes a meshing left gear 421 and a right gear 422. The left gear 421 and right gear 422 are respectively connected to the locking mechanisms 11 on the left and right sides via the pull rod 41, and the right gear 422 is powered by the first electric actuator 43. The first electric actuator 43 drives the locking hooks 111 of the two locking mechanisms 11 to rotate synchronously through the first transfer mechanism 42, causing the locking hooks 111 to separate from the latches 211, thereby achieving automatic unlocking. This invention overcomes the shortcomings of the prior art by changing the automatic unlocking function of the hatch from pneumatic unlocking to electric unlocking, avoiding the problem of automatic unlocking failure due to insufficient air pressure in the vehicle. Furthermore, it has a simple structure, compact layout, and does not require air circuit arrangement, greatly optimizing the interior space.

[0029] Reference Figures 2 to 4 Specifically, the unlocking mechanism 4 also includes a first link 44 and a hatch lock 45 with a handle. The hatch lock 45 is located in the middle of the door panel 1, and the lock cylinder gear 451 of the hatch lock 45 is connected to the right gear 422 through the first link 44. When manual unlocking is required, pulling the handle on the hatch lock 45 will rotate the lock cylinder gear 451, thereby driving the left gear 421 and the right gear 422 to rotate synchronously in opposite directions through the first link 44, which in turn drives the two locking mechanisms 11 to rotate synchronously and achieve unlocking.

[0030] Reference Figures 2 to 4More specifically, the unlocking mechanism 4 also includes a second transfer mechanism, a second connecting rod 47, and a first pull rope 48. The second transfer mechanism includes a rotating plate 46 rotatably disposed in the middle of the door panel 1. One end of the rotating plate 46 is connected to the first electric actuator 43 via the first pull rope 48, and the other end of the rotating plate 46 is connected to the lock cylinder gear 451 of the hatch lock 45 via the second connecting rod 47. The other end of the rotating plate 46 is provided with a free travel groove 461, and the second connecting rod 47 is movably disposed within the free travel groove 461. During manual unlocking, when the lock cylinder gear 451 of the hatch lock 45 rotates clockwise, it will drive the second connecting rod 47 to move upward. Since the rotating plate 46 is designed with a free travel groove 461, when the second connecting rod 47 moves upward, its lower end is in the free travel position, so the rotating plate 46 will not rotate, thus not affecting the first electric actuator 43. This design allows the automatic unlocking function and the manual unlocking function of the unlocking mechanism 4 to coexist without interfering with each other, resulting in a compact structure and high reliability.

[0031] Reference Figure 1 The electric outward-swinging hatch also includes an ECU control box electrically connected to the first electric actuator 43, the second electric actuator 213, and the electric strut 33. Both left and right locking mechanisms 11 are equipped with limit switches electrically connected to the ECU control box. The ECU control box determines whether the locking mechanism 11 is in a locked or unlocked state based on the signals from the limit switches. It then controls the first electric actuator 43 and the second electric actuator 213 to automatically unlock and lock the hatch, and controls the electric strut 33 to open and close the hatch.

[0032] Reference Figures 1 to 4 The specific embodiments of the present invention are described below:

[0033] (1) When unlocking by electric means, the first electric actuator 43 pulls the rotating plate 46 clockwise through the first pull rope 48 and pushes the second connecting rod 47 to move upward, so that the lock cylinder gear 451 on the hatch lock 45 rotates clockwise and pulls the first connecting rod 44 to move downward, so that the left gear 421 of the transfer mechanism 42 rotates clockwise and the right gear 422 rotates counterclockwise, thereby driving the left and right pull rods 41 to move towards the middle, and finally driving the lock hooks 111 of the two locking mechanisms 11 to rotate synchronously, so that the locking mechanism 11 and the lock buckle 21 are separated from each other.

[0034] (2) When manually unlocking, pulling the handle on the hatch lock 45 causes the lock cylinder gear 451 to rotate clockwise, thereby pulling the first connecting rod 44 down, causing the left gear 421 of the transfer mechanism 42 to rotate clockwise and the right gear 422 to rotate counterclockwise, which in turn drives the left and right pull rods 41 to move towards the middle, and finally drives the lock hooks 111 of the two locking mechanisms 11 to rotate synchronously, so that the locking mechanism 11 and the lock buckle 21 are separated from each other. When the lock cylinder gear 451 rotates clockwise, it will drive the second connecting rod 47 to move upward. Since the lower end of the second connecting rod 47 is set in the idle groove 461 of the rotating plate 46, when the second connecting rod 47 moves upward, its lower end is in the idle stroke, and the rotating plate 46 will not rotate, so the first electric actuator 43 will not be affected.

[0035] (3) When the hatch is opened, after the ECU control box receives the electrical signal of the lock 11 unlocking, the electric strut 33 extends and drives the bending arm 32 to rotate together with the gas spring 34, so that the door panel 2 moves outward and swings out until the hatch is fully opened.

[0036] (4) When closing the hatch, the electric strut 33 retracts, the door panel 1 moves downward to the pre-closed state, the locking mechanism 11 is in the locked state, and its locking hook 111 is engaged with the locking buckle 211. At this time, the door panel 1 does not compress the sealing strip. After the ECU control box receives the locking signal of the locking mechanism 11, the second electric actuator 213 drives the locking buckle 211 through the second pull rope 214 to pull the locking mechanism 11 inward, so that the door panel 1 completely compresses the sealing strip, thereby achieving complete closure of the hatch.

[0037] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. An electrically operated outward-swinging hatch, characterized in that: The system includes a door panel, a door frame, a swing arm mechanism, and an unlocking mechanism. The door panel is movably mounted on the door frame via the swing arm mechanism. Locking mechanisms are located on the left and right sides of the back of the door panel, and sliding latches that cooperate with the locking mechanisms are slidably mounted on the left and right side walls of the door frame. The unlocking mechanism is located in the center of the back of the door panel. This unlocking mechanism includes a pull rod, a first transfer mechanism, and a first electric actuator. The two ends of the first transfer mechanism are respectively connected to the locking mechanisms on the left and right sides via the pull rod, and the first electric actuator drives the two locking mechanisms to rotate synchronously. The unlocking mechanism also includes a first connecting rod and a hatch lock with a handle. The hatch lock is located in the center of the door panel, and the lock cylinder gear of the hatch lock is connected via a... The first link is connected to the first transfer mechanism; the unlocking mechanism further includes a second transfer mechanism, a second link, and a first pull rope. The second transfer mechanism includes a rotating plate rotatably disposed in the middle of the door panel. One end of the rotating plate is connected to the first electric actuator via the first pull rope, and the other end of the rotating plate is connected to the lock cylinder gear of the door lock via the second link. The other end of the rotating plate is provided with a free play groove, and the second link is movably disposed in the free play groove. The sliding latch includes a latch, a sliding sleeve, a second electric actuator, and a second pull rope. The sliding sleeve is fixed to the side wall of the door frame, and the latch is slidably installed in the sliding sleeve and connected to the second electric actuator via the second pull rope.

2. The electrically operated outward-swinging hatch as described in claim 1, characterized in that: The first transfer mechanism includes a left gear and a right gear that mesh with each other. The left gear and the right gear are respectively connected to the locking mechanisms on the left and right sides via the pull rod, and the right gear is powered to the first electric actuator.

3. The electrically operated outward-swinging hatch as described in claim 1, characterized in that: It also includes an ECU control box that is electrically connected to the first and second electric actuators.

4. The electrically operated outward-swinging hatch as described in claim 1, characterized in that: The swing arm mechanism includes a support shaft, bent arms, electric struts, and gas springs. The support shaft is rotatably pivotally connected to the door frame. One end of each of the two bent arms is fixed to the support shaft, and the other end is hinged to the back of the door panel. One end of each electric strut and gas spring is hinged to the door frame, and the other end is hinged to the bent arms.

5. The electric outward-swinging hatch as described in claim 1, characterized in that: A sealing strip is provided between the contact point between the door frame and the door panel.

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