Electrically operated door lock and vehicle

Abstract

This utility model relates to the field of door lock transmission technology, and discloses an electric suction door lock and an automobile. The electric suction door lock includes a lock bracket, a detection device mounted on the lock bracket, a drive device, a suction mechanism, a ratchet mechanism, a lock fork, a clutch mechanism, and an unlocking lever. The detection device is electrically connected to the drive device, and the drive device drives the suction mechanism. The suction mechanism and the clutch mechanism are located inside the lock bracket, with the clutch mechanism mounted on the suction mechanism. The ratchet mechanism is drively connected to the clutch mechanism. The lock fork is located outside the lock bracket and is rotatably connected to the ratchet mechanism. The unlocking lever is rotatably mounted on the lock bracket, and a first unlocking part is provided at the position of the unlocking lever corresponding to the clutch mechanism. When the unlocking lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the clutch mechanism to continue rotating, causing the clutch mechanism to separate from the ratchet mechanism. Through the above method, this utility model embodiment can unlock the electric suction door lock by pressing the unlocking lever, providing high security.

Description

Technical Field

[0001] This utility model relates to the field of door lock transmission technology, specifically to an electric suction door lock and an automobile. Background Technology

[0002] Electric door locks are widely used in various devices. For example, high-end cars use electric door locks in their door systems. These locks automatically lock the door when it is pulled to a predetermined position (e.g., the half-lock position). However, the high cost of electric door locks in high-end cars limits their application. Currently, some economical and practical external self-closing door locks have emerged on the market. These locks add an auxiliary electric drive device to achieve automatic locking without altering the original door lock structure. However, if the motor drive device malfunctions after the door is closed, the door cannot be opened, posing a safety hazard. Utility Model Content

[0003] In view of the above problems, this utility model provides an electric suction door lock and a car to solve the above technical problems.

[0004] According to one aspect of the present utility model, an electric suction door lock is provided, the electric suction door lock including a lock bracket, a detection device disposed on the lock bracket, a drive device, a suction mechanism, a ratchet mechanism, a lock fork, a clutch mechanism and an unlocking lever;

[0005] The detection device is electrically connected to the driving device, and the driving device drives the suction mechanism.

[0006] The engaging mechanism and the disengaging mechanism are located inside the lock bracket, and the disengaging mechanism is located on the engaging mechanism;

[0007] The ratchet mechanism is connected to the clutch mechanism in a transmission connection;

[0008] The locking fork is located on the outside of the locking bracket, and the locking fork is rotatably connected to the ratchet mechanism;

[0009] When the detection device detects that the locking fork is in a semi-locked state, it sends an electric suction signal to the driving device, and the driving device drives the suction mechanism to rotate.

[0010] The engaging mechanism drives the clutch mechanism to rotate. After the clutch mechanism rotates to the position where it engages with the ratchet mechanism, the clutch mechanism drives the ratchet mechanism to rotate. The clutch mechanism engages with the ratchet mechanism, and the ratchet mechanism drives the locking fork to rotate so that the locking fork reaches a fully locked state.

[0011] The unlocking lever is rotatably mounted on the lock bracket, and the unlocking lever has a first unlocking part at the position corresponding to the clutch mechanism; when the unlocking lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the clutch mechanism to continue rotating, so that the clutch mechanism is separated from the ratchet mechanism.

[0012] In one alternative embodiment, the suction mechanism includes a suction link, one end of which is provided with a pivot.

[0013] The ratchet mechanism includes a ratchet, a ratchet shaft, a pawl, and a pawl shaft. The ratchet shaft passes through the lock bracket, the ratchet is mounted on the ratchet shaft, and the ratchet is sandwiched between the lock bracket and the clutch mechanism. A shift shaft is provided on the side of the ratchet away from the lock bracket. The pawl shaft is mounted on the lock bracket and spaced apart from the ratchet shaft. The pawl and the engaging linkage are both mounted on the pawl shaft and located inside the lock bracket. The pawl is sandwiched between the engaging linkage and the lock bracket, and the pawl rotates in engagement with the ratchet.

[0014] The locking fork is located on the ratchet shaft and on the outside of the locking bracket;

[0015] The clutch mechanism includes a clutch lever, which is rotatably mounted on the rotating shaft;

[0016] When the detection device detects that the locking fork is in a half-locked state, it sends an electric suction signal to the driving device. The driving device drives the suction linkage of the suction mechanism to rotate. The suction linkage drives the clutch lever, and one end of the clutch lever moves toward the lever shaft.

[0017] After one end of the clutch lever rotates to the position of the shift shaft and engages with the shift shaft, the clutch lever rotates around the pivot shaft and pushes the shift shaft, causing the ratchet to rotate around the ratchet shaft. One end of the clutch lever engages with the shift shaft, and the locking fork rotates coaxially with the ratchet to achieve a fully locked state.

[0018] The unlocking lever is provided with the first unlocking part at the other end corresponding to the clutch lever. When the unlocking lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the other end of the clutch lever to rotate, so that one end of the clutch lever continues to push the dial shaft and separates from the dial shaft.

[0019] In one alternative embodiment, one end of the clutch lever is bent, and a locking portion is recessed at one end of the clutch lever. After the locking portion rotates to the position of the shift shaft and locks the shift shaft, the locking portion rotates around the pivot shaft to push the shift shaft, causing the ratchet to rotate around the ratchet shaft. The locking portion engages with the shift shaft, and the locking fork rotates coaxially with the ratchet to achieve a fully locked state.

[0020] When the unlock lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the other end of the clutch lever to rotate, so that the locking part continues to push the lever shaft and separates from the lever shaft.

[0021] In one alternative embodiment, the ratchet rotates about the ratchet axis to engage the ratchet with the pawl, and the locking fork rotates coaxially with the ratchet to achieve a fully locked state for the electric suction door lock;

[0022] The pawl is provided with a transmission part at the end away from the ratchet, and the unlocking lever is provided with a second unlocking part at the position corresponding to the transmission part. The second unlocking part is spaced apart from the first unlocking part. When the unlocking lever is rotated in the unlocking direction by an external force, the second unlocking part pushes the transmission part to rotate around the pawl axis, so that the pawl separates from the ratchet.

[0023] In one alternative embodiment, the clutch mechanism further includes a limiting member disposed on the rotating shaft, with both ends of the limiting member extending such that one end of the clutch lever is rotatably clamped between the two ends of the limiting member.

[0024] In one alternative embodiment, one end of the suction link is further provided with a limiting hole, the limiting hole being spaced apart from the rotating shaft, and one end of the limiting member extending into the limiting hole;

[0025] The ratchet mechanism further includes a retaining ring, which is disposed on the ratchet shaft and on the side of the ratchet away from the lock bracket. The retaining ring is provided with a first fixing part, and the distance from the first fixing part to the ratchet shaft is less than the distance from the shift shaft to the ratchet shaft.

[0026] The suction mechanism further includes a first elastic element, and the other end of the suction link is provided with a first limiting part. One end of the first elastic element is connected to the first limiting part, and the other end is connected to the first fixing part.

[0027] In one alternative embodiment, the ratchet mechanism further includes a second elastic element;

[0028] The pawl is provided with a second limiting part at one end near the ratchet, and the retaining ring is also provided with a second fixing part. The second fixing part is spaced apart from the first fixing part. The distance from the second fixing part to the ratchet shaft is less than the distance from the shift shaft to the ratchet shaft. One end of the second elastic member is connected to the second limiting part, and the other end is connected to the second fixing part.

[0029] In one alternative embodiment, one end of the unlocking lever is located inside the lock bracket, and the other end of the unlocking lever passes through the lock bracket and extends out of the lock bracket from the other end inside the lock bracket. The unlocking lever has a clearance portion corresponding to the position of the pivot, and a support portion is also provided at the middle position of the unlocking lever. The support portion and the clearance portion are spaced apart. An elastic bracket is provided on the inner side of the lock bracket corresponding to the position of the support portion, and the support portion is located on the elastic bracket.

[0030] In one alternative embodiment, the attraction mechanism further includes an attraction cable and an attraction lever, one end of the attraction lever being operatively connected to one end of the attraction link, the other end of the attraction lever being operatively connected to one end of the attraction cable, and the other end of the attraction cable being operatively connected to a driving device.

[0031] According to another aspect of the present invention, an automobile is provided, the automobile including the above-described electric suction door lock.

[0032] The electric suction door lock of this embodiment is equipped with a clutch mechanism, which is located on the suction mechanism. The ratchet mechanism is drivenly connected to the clutch mechanism, and the lock fork is rotatably connected to the ratchet mechanism. When the detection device detects that the lock fork is in a half-locked state, it sends an electric suction signal to the drive device. The drive device drives the suction mechanism to rotate, and the suction mechanism drives the clutch mechanism to rotate. After the clutch mechanism rotates to the position where it engages with the ratchet mechanism, the clutch mechanism drives the ratchet mechanism to rotate, and the clutch mechanism engages with the ratchet mechanism. The ratchet mechanism drives the lock fork to rotate and reach a fully locked state. When the unlocking lever is rotated in the unlocking direction by external force, the first unlocking part pushes the clutch mechanism to continue rotating, so that the clutch mechanism and the ratchet mechanism are separated, thereby unlocking the electric suction door lock. After the electric suction door lock of this embodiment automatically suctions, even if the drive device fails and the door cannot be opened by the drive device, the electric suction door lock can still be unlocked by pressing the unlocking lever, which provides high security.

[0033] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0035] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the electric suction door lock of this utility model is shown from one angle;

[0036] Figure 2 As shown Figure 1 The diagram shown is a structural schematic of the electric suction door lock after removing the first elastic element, the second elastic element, and the elastic bracket.

[0037] Figure 3 As shown Figure 2 The diagram shown illustrates the structure of an electric suction door lock in its default state after the unlock lever is removed.

[0038] Figure 4 As shown Figure 3 The rear view of the electric suction door lock shown;

[0039] Figure 5 As shown Figure 2 The diagram shows the structure of an electric suction door lock in a semi-locked state after the unlock lever is removed.

[0040] Figure 6 As shown Figure 5 The rear view of the electric suction door lock shown;

[0041] Figure 7 As shown Figure 2 The diagram shown illustrates the structure of an electric suction door lock in a fully locked state after the unlock lever is removed.

[0042] Figure 8 As shown Figure 7 The rear view of the electric suction door lock shown;

[0043] Figure 9 As shown Figure 7 The diagram shows the structure of the electric suction door lock after unlocking.

[0044] The reference numerals in the detailed embodiments are as follows:

[0045] Lock bracket 1, detection device 2, suction mechanism 3, ratchet mechanism 4, locking fork 5, clutch mechanism 6, unlocking lever 7, first unlocking part 71, suction link 31, suction cable 32, suction lever 33, rotating shaft 311, ratchet 41, ratchet shaft 42, pawl 43, pawl shaft 44, lever shaft 411, clutch lever 61, locking part 611, transmission part 431, second unlocking part 72, limiting member 62, limiting hole 312, retaining ring 45, first fixing part 451, first elastic member 34, first limiting part 313, second elastic member 46, second limiting part 432, second fixing part 452, clearance part 73, support part 74, elastic bracket 11. Detailed Implementation

[0046] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0047] Please see Figures 1-3 The electric suction door lock includes a lock bracket 1, a detection device 2 mounted on the lock bracket 1, a drive device (not shown in the figure), a suction mechanism 3, a ratchet mechanism 4, a lock fork 5, a clutch mechanism 6, and an unlocking lever 7. The detection device 2 is electrically connected to the drive device, and the drive device drives the suction mechanism 3.

[0048] In this embodiment, the detection device 2 is positioned near the ratchet mechanism 4 or the locking fork 5 to determine the door's closed state by detecting the state of the ratchet mechanism 4 or the locking fork 5. The detection device 2 can be a Hall sensor or a camera, or any other device capable of detecting the door's closed state; no limitation is made here. The detection device 2 sends a signal to the drive device based on the door's closed state. When the door is detected to be in a predetermined closed state, such as a half-locked state, an electric suction signal is sent to the drive device. The drive device is an electric motor that converts electrical energy into mechanical energy, used to drive the suction mechanism 3 to rotate according to the electric suction signal.

[0049] The suction mechanism 3 and the clutch mechanism 6 are located inside the lock bracket 1. The clutch mechanism 6 is mounted on the suction mechanism 3. The ratchet mechanism 4 is connected to the clutch mechanism 6. The lock fork 5 is located outside the lock bracket 1 and is rotatably connected to the ratchet mechanism 4. When the detection device 2 detects that the lock fork 5 is in a half-locked state, it sends an electric suction signal to the drive device. The drive device drives the suction mechanism 3 to rotate. When the suction mechanism 3 rotates, it drives the clutch mechanism 6 to rotate. After the clutch mechanism 6 rotates to the position where it engages with the ratchet mechanism 4, the clutch mechanism 6 drives the ratchet mechanism 4 to rotate, and the clutch mechanism 6 engages with the ratchet mechanism 4. At the same time, when the ratchet mechanism 4 rotates, it drives the lock fork 5 to rotate, so that the lock fork 5 reaches the fully locked state. At this time, the lock fork 5 of the electric suction door lock realizes the process of automatically electric suction from the half-locked state to the fully locked state. After the locking fork 5 reaches the fully locked state, the detection device 2 detects that the locking fork 5 is in the fully locked state and sends a return signal to the drive device. The drive device drives the suction mechanism 3 to return to the initial position according to the return signal, so that the electric suction door lock is locked.

[0050] In this embodiment, the unlocking lever 7 is rotatably mounted on the lock bracket 1, and a first unlocking part 71 is provided at the position corresponding to the clutch mechanism 6. When the drive mechanism of the electric suction door lock malfunctions and cannot be unlocked by the drive mechanism, the unlocking lever 7 can be pressed. When the unlocking lever 7 is rotated in the unlocking direction by external force, the first unlocking part 71 pushes the clutch mechanism 6 to continue rotating. The rotation of the clutch mechanism 6 drives the ratchet mechanism 4 to continue rotating, causing the clutch mechanism 6 to separate from the ratchet mechanism 4, allowing the electric suction door lock to be unlocked by pressing the unlocking lever 7 with external force.

[0051] The electric suction door lock of this embodiment is equipped with a clutch mechanism 6, which is located on the suction mechanism 3. The ratchet mechanism 4 is connected to the clutch mechanism 6 through a transmission, and the lock fork 5 is rotatably connected to the ratchet mechanism 4. When the detection device 2 detects that the lock fork 5 is in a half-locked state, it sends an electric suction signal to the drive device. The drive device drives the suction mechanism 3 to rotate, and the suction mechanism 3 drives the clutch mechanism 6 to rotate. After the clutch mechanism 6 rotates to the position where it engages with the ratchet mechanism 4, the clutch mechanism 6 drives the ratchet mechanism 4 to rotate, and the clutch mechanism 6 engages with the ratchet mechanism 4. The ratchet mechanism 4 drives the lock fork 5 to rotate and reach a fully locked state. When the unlocking lever 7 is rotated in the unlocking direction by an external force, the first unlocking part 71 pushes the clutch mechanism 6 to continue rotating, so that the clutch mechanism 6 and the ratchet mechanism 4 are separated, thereby unlocking the electric suction door lock. Even if the drive device fails and the door cannot be opened by the drive device, the electric suction door lock can still be unlocked by pressing the unlocking lever 7, which provides high security.

[0052] In one embodiment, see Figure 3The engaging mechanism 3 includes an engaging link 31, one end of which is provided with a rotating shaft 311. The ratchet mechanism 4 includes a ratchet 41, a ratchet shaft 42, a pawl 43, and a pawl shaft 44. The ratchet shaft 42 passes through the lock bracket 1, and the ratchet 41 is located on the ratchet shaft 42. The ratchet 41 is sandwiched between the lock bracket 1 and the clutch mechanism 6. A pawl shaft 411 protrudes from the side of the ratchet 41 away from the lock bracket 1. The pawl shaft 44 is located on the lock bracket 1 and spaced apart from the ratchet shaft 42. The pawl 43 and the engaging link 31 are both located on the pawl shaft 44 and inside the lock bracket 1. The pawl shaft 44 is located at the middle of the pawl 43 and the middle of the engaging link 31. The pawl 43 is sandwiched between the engaging link 31 and the lock bracket 1. The pawl 43 and the ratchet 41 rotate in opposite directions to achieve engagement. The locking fork 5 is located on the ratchet shaft 42 and on the outside of the locking bracket 1. The clutch mechanism 6 includes a clutch lever 61, which is rotatably mounted on a rotating shaft 311, with the rotating shaft 311 located at the middle of the clutch lever 61.

[0053] If the detection device 2 is a Hall sensor, it can be positioned close to the ratchet 41 to determine whether the locking fork 5 is in a semi-locked state by detecting the rotation of the ratchet 41. Figures 4 to 6 As shown, Figure 4 Lock fork 5 is in the default state. Figure 5 and Figure 6 The locking fork 5 is in a half-locked state. When the detection device 2 detects that the locking fork 5 is in a half-locked state, it sends an electric suction signal to the drive device. The drive device drives the suction linkage 31 of the suction mechanism 3 to rotate around the pawl shaft 44. When the suction linkage 31 rotates, it drives the clutch lever 61, and one end of the clutch lever 61 moves toward the lever shaft 411. Figure 7 As shown, after one end of the clutch lever 61 rotates to the position of the shift shaft 411 and engages with the shift shaft 411, the clutch lever 61 is subjected to the pressure of the shift shaft 411 and rotates around the pivot 311, thereby pushing the shift shaft 411, causing the ratchet 41 to rotate around the ratchet shaft 42. One end of the clutch lever 61 engages with the shift shaft 411, and at the same time, the locking fork 5 rotates coaxially with the ratchet 41 to achieve a fully locked state. Figure 7 and Figure 8 As shown, one end of the clutch lever 61 pushes the lever shaft 411, causing the ratchet 41 to rotate counterclockwise around the ratchet shaft 42, and the locking fork 5 reaches the fully locked state. At this time, the locking fork 5 of the electric suction door lock realizes the process of automatically electric suction from the half-locked state to the fully locked state. After the locking fork 5 reaches the fully locked state, the detection device 2 detects that the locking fork 5 is in the fully locked state and sends a return signal to the drive device. The drive device drives the suction mechanism 3 according to the return signal, and causes the suction linkage 31 to return to the initial position, so that the electric suction door lock is locked.

[0054] In this embodiment, the unlocking lever 7 has a first unlocking part 71 at the other end corresponding to the clutch lever 61. When the drive mechanism of the electric suction door lock malfunctions and cannot be unlocked by the drive mechanism, the unlocking lever 7 can be pressed. When the unlocking lever 7 is rotated in the unlocking direction by external force, the first unlocking part 71 pushes the other end of the clutch lever 61, causing the clutch lever 61 to continue rotating. The continued rotation of one end of the clutch lever 61 pushes the pivot 411, causing the ratchet mechanism 4 to continue rotating. Unlocking is achieved when one end of the clutch lever 61 separates from the pivot 411. Figure 9 As shown, the electric suction door lock unlocks when one end of the clutch lever 61 is separated from the lever shaft 411.

[0055] Furthermore, such as Figure 3 As shown, one end of the clutch lever 61 is bent, and a retaining part 611 is recessed at one end of the clutch lever 61. After the retaining part 611 rotates to the position of the shift shaft 411 and engages with the shift shaft 411, the retaining part 611 rotates around the pivot 311 and pushes the shift shaft 411, causing the ratchet 41 to rotate around the ratchet shaft 42. The retaining part 611 engages with the shift shaft 411, and the locking fork 5 rotates coaxially with the ratchet 41 to achieve a fully locked state. In this embodiment, the clutch lever 61 is bent to match the arc-shaped movement trajectory of the shift shaft 411, which can push the shift shaft 411 a greater distance. Moreover, the recessed retaining part 611 can better engage with and push the shift shaft 411, helping the locking fork 5 to rotate to achieve a fully locked state. Furthermore, when the unlock lever 7 is rotated in the unlocking direction by an external force, the first unlocking part 71 pushes the other end of the clutch lever 61 to rotate, so that the locking part 611 continues to push the lever shaft 411 and separates from the lever shaft 411.

[0056] Furthermore, such as Figure 7As shown, during the electric suction lock's locking process, when the ratchet 41 rotates around the ratchet shaft 42, the teeth of the ratchet 41 engage with the pawl 43, and the locking fork 5 rotates coaxially with the ratchet 41, causing the electric suction lock to reach a fully locked state. In this embodiment, in the fully locked state, the teeth of the ratchet 41 engage with the pawl 43, and one end of the clutch lever 61 engages with the lever shaft 411. Even if the teeth of the ratchet 41 separate from the pawl 43, it cannot be unlocked because one end of the clutch lever 61 is engaged with the lever shaft 411. In this embodiment, the end of the pawl 43 away from the ratchet 41 is provided with a transmission part 431, and the unlocking lever 7 is provided with a second unlocking part 72 corresponding to the position of the transmission part 431. The second unlocking part 72 is spaced apart from the first unlocking part 71. When the electric suction door lock is unlocked, the unlocking lever 7 is rotated in the unlocking direction by external force. The first unlocking part 71 pushes the other end of the clutch lever 61, causing one end of the clutch lever 61 to separate from the pivot shaft 411. At the same time, the second unlocking part 72 pushes the transmission part 431 to rotate around the pawl shaft 44, causing the pawl 43 to separate from the ratchet 41. In this embodiment, in the unlocked state, the tooth groove of the ratchet 41 is separated from the pawl 43, and one end of the clutch lever 61 is separated from the pivot shaft 411. In this embodiment, the unlocking lever 7 is provided with a second unlocking part 72 and a first unlocking part 71 spaced apart. The unlocking lever 7 alone can separate the tooth groove of the ratchet 41 from the pawl 43 and the one end of the clutch lever 61 from the pivot shaft 411, thus achieving unlocking. The structure is simple and compact.

[0057] In one embodiment, such as Figure 1 As shown, the clutch mechanism 6 also includes a limiting member 62, which is disposed on the rotating shaft 311. Both ends of the limiting member 62 extend, allowing one end of the clutch lever 61 to be rotatably clamped between the two ends of the limiting member 62. In this embodiment, the limiting member 62 can restrict the clutch lever 61 from rotating within a certain range. When the electric suction door lock is engaged, only a small rotation angle is needed to accurately engage the electric suction door. Furthermore, the limiting member 62 is an elastic limiting member 62.

[0058] In one embodiment, such as Figure 1 and Figure 3As shown, one end of the suction link 31 is also provided with a limiting hole 312, which is spaced apart from the rotating shaft 311. One end of the limiting member 62 extends into the limiting hole 312, and the rotation range of one end of the suction link 31 can be limited by the limiting member 62. The ratchet mechanism 4 also includes a retaining ring 45, which is provided on the ratchet shaft 42 and on the side of the ratchet 41 away from the lock bracket 1. A first fixing part 451 protrudes from the retaining ring 45 toward the inside of the lock bracket 1. The distance from the first fixing part 451 to the ratchet shaft 42 is less than the distance from the shift shaft 411 to the ratchet shaft 42. The height of the first fixing part 451 is set appropriately, which can be greater than the height of the shift shaft 411, so as not to affect the rotation of the shift shaft 411. The suction mechanism 3 also includes a first elastic element 34. The other end of the suction link 31 protrudes towards the inside of the lock bracket 1 and is provided with a first limiting part 313. One end of the first elastic element 34 is connected to the first limiting part 313, and the other end is connected to the first fixing part 451. When the electric suction door lock is not locked, the first elastic element 34 can be in a non-stretched state or a slightly stretched state. During the process of the electric suction door lock from a half-locked state to a fully locked state, the end of the suction link 31 with the rotating shaft 311 drives the clutch lever 61 to move towards the rotating shaft 411, while the first limiting part 313 at the other end of the suction link 31 rotates and gradually moves away from the ratchet 41, causing the first elastic element 34 to stretch or further stretch. When returning to the original position, the drive device drives the suction mechanism 3 according to the return signal. The suction mechanism 3 returns to the initial position under the elastic force of the first elastic element 34, and the first elastic element 34 returns to the non-stretched state or the slightly stretched state, causing the electric suction door lock to lock.

[0059] In one embodiment, such as Figure 1 As shown, the ratchet mechanism 4 also includes a second elastic element 46. The pawl 43, near the ratchet 41, protrudes inward towards the lock bracket 1 with a second limiting portion 432. The retaining ring 45 also has a second fixing portion 452, which is spaced apart from the first fixing portion 451. The distance from the second fixing portion 452 to the ratchet shaft 42 is less than the distance from the shift shaft 411 to the ratchet shaft 42. The height of the second fixing portion 452 is appropriately set, exceeding the height of the shift shaft 411 without affecting its rotation. One end of the second elastic element 46 is connected to the second limiting portion 432, and the other end is connected to the second fixing portion 452. In the fully locked state, ratchet 41 and pawl 43 are engaged, and the second elastic element 46 can be in a non-stretched state or a slightly stretched state. During the unlocking process, when the end of pawl 43 near ratchet 41 rotates away from ratchet 41, it causes the second elastic element 46 to stretch or further stretch. When the unlocking is completed, the elastic force of the second elastic element 46 causes the pawl 43 to return to the initial position.

[0060] Furthermore, such as Figure 2As shown, one end of the unlocking lever 7 is located inside the lock bracket 1, and the other end of the unlocking lever 7 passes through the lock bracket 1 and extends out of the lock bracket 1 from the other end inside the lock bracket 1. The unlocking lever 7 has a clearance part 73 at the position corresponding to the pivot 311. A support part 74 is also provided in the middle of the unlocking lever 7. The support part 74 and the clearance part 73 are spaced apart. An elastic bracket 11 is provided on the inner side of the lock bracket 1 at the position corresponding to the support part 74. The support part 74 is located on the elastic bracket 11. In this embodiment, a shaft is provided at one end of the lock bracket 1. One end of the unlocking lever 7 is located on the shaft and can rotate around the shaft. The elastic bracket 11 supports the unlocking lever 7. After unlocking, the unlocking lever 7 can return to its original position under the elastic force of the elastic bracket 11. The unlocking lever 7 is arranged to pass through one end of the lock bracket 1 and extend out of the lock bracket 1, so that unlocking can be achieved with a small force. The unlocking lever 7 can reserve enough space for the first unlocking part 71 and the second unlocking part 72, so that no interference occurs during unlocking. At the same time, the unlocking lever 7 is provided with a relief part 73 at the position corresponding to the rotating shaft 311, so that unlocking will not affect the rotation of the rotating shaft 311 and the clutch lever 61, and no interference will occur during unlocking.

[0061] Furthermore, such as Figure 3 As shown, the suction mechanism 3 also includes a suction cable 32 and a suction lever 33. The middle part of the suction lever 33 is mounted on the lock bracket 1 via a rotatable shaft. One end of the suction lever 33 is connected to one end of the suction connecting rod 31, as shown. Figure 3 As shown, one end of the attraction lever 33 and one end of the attraction connecting rod 31 are respectively provided with a pin. When the attraction lever 33 rotates, it pushes the pin of the attraction connecting rod 31 through the pin, realizing the transmission between the two. The other end of the attraction lever 33 is connected to one end of the attraction cable 32, and the other end of the attraction cable 32 is connected to the drive device. When the detection device 2 detects that the locking fork 5 is in a half-locked state, it sends an electric attraction signal to the drive device. The drive device drives the attraction cable 32, causing the attraction cable 32 to pull outwards towards the lock bracket 1. The attraction cable 32 pulls the attraction lever 33, and the attraction lever 33 drives the attraction connecting rod 31, causing the attraction connecting rod 31 to rotate around the pawl shaft 44. Thus, when the attraction connecting rod 31 rotates, it drives the clutch lever 61, realizing that the clutch lever 61 drives the ratchet 41.

[0062] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by those skilled in the art to which the embodiments of this utility model pertain.

[0063] In the description of the embodiments of this utility model, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0064] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0065] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0066] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrically operated door closer, characterised in that, The electric suction door lock includes a lock bracket, a detection device mounted on the lock bracket, a drive device, a suction mechanism, a ratchet mechanism, a lock fork, a clutch mechanism, and an unlocking lever; The detection device is electrically connected to the driving device, and the driving device drives the suction mechanism. The engaging mechanism and the disengaging mechanism are located inside the lock bracket, and the disengaging mechanism is located on the engaging mechanism; The ratchet mechanism is connected to the clutch mechanism in a transmission connection; The locking fork is located on the outside of the locking bracket, and the locking fork is rotatably connected to the ratchet mechanism; When the detection device detects that the locking fork is in a semi-locked state, it sends an electric suction signal to the driving device, and the driving device drives the suction mechanism to rotate. The engaging mechanism drives the clutch mechanism to rotate. After the clutch mechanism rotates to the position where it engages with the ratchet mechanism, the clutch mechanism drives the ratchet mechanism to rotate. The clutch mechanism engages with the ratchet mechanism, and the ratchet mechanism drives the locking fork to rotate so that the locking fork reaches a fully locked state. The unlocking lever is rotatably mounted on the lock bracket, and the unlocking lever has a first unlocking part at the position corresponding to the clutch mechanism; when the unlocking lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the clutch mechanism to continue rotating, so that the clutch mechanism is separated from the ratchet mechanism.

2. The electric suction door lock according to claim 1, characterized in that, The suction mechanism includes a suction link, one end of which is provided with a rotating shaft; The ratchet mechanism includes a ratchet, a ratchet shaft, a pawl, and a pawl shaft. The ratchet shaft passes through the lock bracket, the ratchet is mounted on the ratchet shaft, and the ratchet is sandwiched between the lock bracket and the clutch mechanism. A shift shaft is provided on the side of the ratchet away from the lock bracket. The pawl shaft is mounted on the lock bracket and spaced apart from the ratchet shaft. The pawl and the engaging linkage are both mounted on the pawl shaft and located inside the lock bracket. The pawl is sandwiched between the engaging linkage and the lock bracket, and the pawl rotates in engagement with the ratchet. The locking fork is located on the ratchet shaft and on the outside of the locking bracket; The clutch mechanism includes a clutch lever, which is rotatably mounted on the rotating shaft; When the detection device detects that the locking fork is in a half-locked state, it sends an electric suction signal to the driving device. The driving device drives the suction linkage of the suction mechanism to rotate. The suction linkage drives the clutch lever, and one end of the clutch lever moves toward the lever shaft. After one end of the clutch lever rotates to the position of the shift shaft and engages with the shift shaft, the clutch lever rotates around the pivot shaft and pushes the shift shaft, causing the ratchet to rotate around the ratchet shaft. One end of the clutch lever engages with the shift shaft, and the locking fork rotates coaxially with the ratchet to achieve a fully locked state. The unlocking lever is provided with the first unlocking part at the other end corresponding to the clutch lever. When the unlocking lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the other end of the clutch lever to rotate, so that one end of the clutch lever continues to push the dial shaft and separates from the dial shaft.

3. The electrically powered door closer of claim 2, wherein One end of the clutch lever is bent, and a locking part is recessed at one end of the clutch lever. After the locking part rotates to the position of the lever shaft and locks the lever shaft, the locking part rotates around the pivot shaft and pushes the lever shaft, so that the ratchet rotates around the ratchet shaft. The locking part engages with the lever shaft, and the locking fork rotates coaxially with the ratchet to achieve a fully locked state. When the unlock lever is rotated in the unlocking direction by an external force, the first unlocking part pushes the other end of the clutch lever to rotate, so that the locking part continues to push the lever shaft and separates from the lever shaft.

4. The electrically powered door closer of claim 2, wherein The ratchet rotates around the ratchet shaft, causing the ratchet to engage with the pawl, and the locking fork rotates coaxially with the ratchet, causing the electric suction door lock to reach a fully locked state. The pawl is provided with a transmission part at the end away from the ratchet, and the unlocking lever is provided with a second unlocking part at the position corresponding to the transmission part. The second unlocking part is spaced apart from the first unlocking part. When the unlocking lever is rotated in the unlocking direction by an external force, the second unlocking part pushes the transmission part to rotate around the pawl axis, so that the pawl separates from the ratchet.

5. The electrically powered door closer of claim 4, wherein, The clutch mechanism also includes a limiting member, which is disposed on the rotating shaft. Both ends of the limiting member are extended so that one end of the clutch lever is rotatably clamped between the two ends of the limiting member.

6. The electrically powered door closer of claim 5, wherein, One end of the suction connecting rod is also provided with a limiting hole, the limiting hole is spaced apart from the rotating shaft, and one end of the limiting member extends into the limiting hole; The ratchet mechanism further includes a retaining ring, which is disposed on the ratchet shaft and on the side of the ratchet away from the lock bracket. The retaining ring is provided with a first fixing part, and the distance from the first fixing part to the ratchet shaft is less than the distance from the shift shaft to the ratchet shaft. The suction mechanism further includes a first elastic element, and the other end of the suction link is provided with a first limiting part. One end of the first elastic element is connected to the first limiting part, and the other end is connected to the first fixing part.

7. The electrically powered door closer of claim 6, wherein The ratchet mechanism also includes a second elastic element; The pawl is provided with a second limiting part at one end near the ratchet, and the retaining ring is also provided with a second fixing part. The second fixing part is spaced apart from the first fixing part. The distance from the second fixing part to the ratchet shaft is less than the distance from the shift shaft to the ratchet shaft. One end of the second elastic member is connected to the second limiting part, and the other end is connected to the second fixing part.

8. The electrically powered door closer of claim 4, wherein, One end of the unlocking lever is located inside the lock bracket, and the other end of the unlocking lever passes through the lock bracket and extends out of the lock bracket from the other end inside the lock bracket. The unlocking lever has a clearance portion corresponding to the position of the pivot, and a support portion is also provided in the middle of the unlocking lever. The support portion and the clearance portion are spaced apart. An elastic bracket is provided on the inner side of the lock bracket corresponding to the position of the support portion, and the support portion is located on the elastic bracket.

9. The electrically powered door closer of claim 2, wherein, The attraction mechanism further includes an attraction cable and an attraction lever. One end of the attraction lever is operatively connected to one end of the attraction connecting rod, and the other end of the attraction lever is operatively connected to one end of the attraction cable. The other end of the attraction cable is operatively connected to a driving device.

10. An automobile characterized by comprising: The vehicle includes the electric suction door lock as described in any one of claims 1-9.

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