Car door lock device
The elevator car door lock mechanism addresses the limitations of existing asynchronous systems by enabling compatibility with both inner and outer type door locks, offering a simpler, cost-effective, and safer operation with manual override options.
Patent Information
- Application Number
- CN202410046250.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-12
- Publication Date
- 2025-07-15
AI Technical Summary
The traditional asynchronous car door lock device cannot be adapted to the outer-tension layer door lock device, resulting in adaptation problems in the renovation of old ladders, and it has complex structure, high cost and inconvenient maintenance.
An asynchronous car door lock device is designed. By providing a spaced first roller and second roller on the car door and the layer door, the asynchronous opening of the car door and the layer door is achieved by combining the flip and the roller, and adapting to the outer-opening layer door lock device, and including a reset mechanism and a guide surface to ensure safety and reliability.
It realizes a car door lock device with a simple structure, low cost and low failure rate, and can be adapted to an outer-tension layer door lock device, which improves safety and reliability, and ensures that the car door can also be opened from the layer door side when it fails.
Smart Images
Figure CN120308795A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of elevators, and particularly to a car door lock device. Background Art
[0002] With the rapid development of technology and the increase in the height of building floors, elevators are used more and more frequently in daily life. As a means of transportation for going up and down floors, it is closely related to people's safety when taking the elevator, which makes the society have stricter requirements for elevators.
[0003] To ensure the safety of passengers, it is usually necessary to make the car door of the elevator can be opened only when the elevator is at the leveling position, so as to prevent the passengers in the car from falling into the hoistway. Therefore, it is necessary to install a car door lock device in the car to ensure that the car door cannot be opened when the elevator is in a non-leveling area.
[0004] The car door lock device is generally divided into two types: synchronous type and asynchronous type. In the synchronous type, the car door and the landing door are linked together and opened synchronously; while in the asynchronous type, the car door first travels a certain distance to unlock, and then the car door and the landing door are linked together to open. The landing door lock device is divided into two types: inner clamping unlocking and outer expanding unlocking, corresponding to two rollers in the landing door lock device being closely distributed or relatively far apart.
[0005] The synchronous car door lock device can generally cope with both the inner clamping type landing door lock device and the outer expanding type landing door lock device at the same time. However, the synchronous car door lock device has a complex structure, so the cost is relatively high, and it is not convenient for debugging and maintenance. The asynchronous car door lock device has a simpler overall structure, lower cost, and lower failure rate. However, the traditional asynchronous car door lock device can only cope with the inner clamping type landing door lock device and cannot be adapted to the outer expanding type landing door lock device. In the case of old elevator renovation, etc., various landing door lock structures are often encountered, including inner clamping type and outer expanding type, and the car door lock device needs to cooperate with them. When the landing door lock device adopts an outer expanding structure, the car door lock device cannot adopt an asynchronous structure with lower cost and better maintenance convenience. Summary of the Invention
[0006] Based on this, it is necessary to provide a car door lock device that has a simple structure, is easy to maintain, and can be applied to an outer expanding type landing door lock structure for the above problems.
[0007] A car door lock device is used to cooperate with a first roller and a second roller spaced apart on the landing door when the car is in the leveling state. The car door lock device includes:
[0008] A base, which is used to be fixed to the car door;
[0009] A locking hook assembly, which is movably arranged on the base. The locking hook assembly has a locking position for locking the car door and an unlocking position for releasing the locking of the car door.
[0010] A first door knife and a second door knife, both of which are movably arranged on the base. The first door knife and the second door knife are arranged at intervals, and the first door knife is farther away from the center line of the car door than the second door knife. The first door knife includes a first flanging, and the second door knife includes a second flanging. When the car is in the leveling state, both the first flanging and the second flanging are located between the first roller and the second roller, and the first flanging is closer to the first roller than the second flanging.
[0011] The car door lock device has a closed state, a first door opening state in which the car door drives the landing door to open, and a second door opening state in which the landing door drives the car door to open, where:
[0012] In the closed state, the locking hook assembly is in the locking position, the first flanging is spaced from the first roller, and the second flanging is spaced from the second roller.
[0013] In the first door opening state, the first flanging is in abutting engagement with the first roller, and the first door knife moves in the direction close to the second door knife under the drive of the first roller to drive the locking hook assembly into the unlocking position, and the second door knife moves in the direction away from the first door knife to make the second flanging abut against the second roller.
[0014] In the second door opening state, the second flanging is in abutting engagement with the second roller, and the second door knife moves in the direction close to the first door knife under the drive of the second roller to drive the locking hook assembly into the unlocking position.
[0015] The technical solution is further described below:
[0016] In one embodiment, the car door lock device further includes a reset mechanism. In the closed state, the reset mechanism abuts against the second door knife to maintain the second flanging at an initial position spaced from the second roller. In the first door opening state, the reset mechanism is separated from the second door knife, so that the second door knife moves in the direction away from the first door knife under the action of gravity and enters a first door opening position where the second flanging abuts against the second roller. During the process of the car door lock device entering the closed state from the first door opening state, the reset mechanism cooperates with the second door knife to drive the second door knife to return from the first door opening position to the initial position.
[0017] In one embodiment, the reset mechanism is provided with a guiding surface. In the closed door state, the second door knife is in abutting cooperation with the guiding surface. In the first open door state, the second door knife is separated from the guiding surface. During the process of the car door lock device entering the closed door state from the first open door state, the second door knife moves along the guiding surface to guide the second door knife to return from the first open door position to the initial position.
[0018] In one embodiment, a rotatable guide pulley is provided on the second door knife. During the process of the car door lock device entering the closed door state from the first open door state, the guide pulley is in rolling cooperation with the guiding surface.
[0019] In one embodiment, the hook assembly includes:
[0020] A turntable, which is rotatably connected to the base through a rotating shaft;
[0021] A hook arm, which is connected to the edge of the turntable. In the locked position, the hook arm locks the car door. In the unlocked position, the hook arm releases the lock on the car door;
[0022] An abutting portion, which is arranged on the edge of the turntable. The abutting portion and the hook arm are respectively located on both sides of the rotating shaft. The abutting portion is used to cooperate with the first door knife during the process of the car door lock device entering the first open door state to drive the hook arm to move from the locked position to the unlocked position;
[0023] A pulling arm, which is connected to the edge of the turntable and is arranged at an angle with the hook arm. The pulling arm is used to cooperate with the second door knife during the process of the car door lock device entering the second open door state to drive the hook arm to move from the locked position to the unlocked position.
[0024] In one embodiment, the first door knife is connected with an unlocking push rod. In the closed door state of the car door lock device, the unlocking push rod is in abutting cooperation with the abutting portion. During the process of the car door lock device entering the first open door state, the unlocking push rod pushes the abutting portion to enable the hook arm to move from the locked position to the unlocked position; and / or,
[0025] The second door knife is connected with an unlocking pull rod, and the unlocking pull rod is provided with a hook. In the closed door state of the car door lock device, the hook is arranged at an interval from the pulling arm. During the process of the car door lock device entering the second open door state, the hook pulls the pulling arm to enable the hook arm to move from the locked position to the unlocked position.
[0026] In one embodiment, the first door knife further includes a first rod body, the first flanging is connected to a side of the first rod body close to the second door knife, and the first flanging extends away from the base;
[0027] The second door knife includes a second rod body and a second flanging, the second flanging is connected to a side of the second rod body close to the first door knife, and the second flanging extends away from the base.
[0028] In one embodiment, the car door lock device further includes a first swing arm and a second swing arm. One end of the first swing arm is rotatably connected to the base, and the other end of the first swing arm is rotatably connected to the first rod body; One end of the second swing arm is rotatably connected to the base, and the other end of the second swing arm is rotatably connected to the second rod body.
[0029] In one embodiment, the connection point between the second swing arm and the base is a first transfer point, and the connection point between the second swing arm and the second rod body is a second transfer point. Wherein, in the first door opening state, the included angle between the line connecting the first transfer point and the second transfer point and the horizontal line passing through the first transfer point is a negative angle.
[0030] In one embodiment, a first limiting member is provided on a side of the base away from the second door knife of the first door knife, and a second limiting member is provided on a side of the first door knife close to the second door knife. In the closed door state, the first swing arm abuts against the first limiting member, and in the first door opening state, the first flanging abuts against the second limiting member; and / or,
[0031] A third limiting member is provided on a side of the base away from the first door knife of the second door knife, and a fourth limiting member is provided on a side of the second door knife close to the first door knife. A limiting post is provided on the second rod body; in the first door opening state, the limiting post abuts against the third limiting member, and in the second door opening state, the second flanging abuts against the fourth limiting member.
[0032] In the above-mentioned car door lock device, when the car is in the leveling state and the car door lock device is in the closed state, both the first flange and the second flange are located between the first roller and the second roller, and there is a gap between the first flange and the first roller, and between the second flange and the second roller. In this way, during the process of entering the first door opening state from the closed state, the car door will first move a certain distance, so that the first flange abuts against the first roller and drives the lock hook assembly into the unlocking position, and then drives the landing door to open. That is, the opening of the car door is not synchronized with the opening of the landing door. Therefore, the car door lock device of the present application belongs to an asynchronous structure. Compared with the synchronous structure, the asynchronous car door lock device has a simpler structure, lower cost, and lower failure rate. At the same time, in the first door opening state, the first flange abuts against the first roller, and the second flange abuts against the second roller. That is, compared with the closed state, the distance between the first door knife and the second door knife in the first door opening state is larger. Therefore, during the process of entering the first door opening state from the closed state, the first door knife and the second door knife move away from each other, so it can be adapted to the outward-opening landing door lock device, solving the technical problem that the traditional asynchronous car door lock device cannot be adapted to the outward-opening landing door lock device.
[0033] In addition, in addition to the first door opening state in which the car door normally drives the landing door to open, the above-mentioned car door lock device also has a second door opening state in which the landing door drives the car door to open, thus ensuring that when the car door fails or the elevator has an accident, the car door can still be opened from the landing door side, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] The drawings forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application.
[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0036] In addition, the drawings are not drawn to a scale of 1:1, and the relative sizes of the respective elements are only schematically drawn in the drawings and not necessarily drawn to the actual scale. In the drawings:
[0037] Figure 1 is a schematic structural diagram of a car door lock device according to an embodiment.
[0038] Figure 2 is Figure 1 a top view of the car door lock device shown in
[0039] Figure 3 is Figure 1 the structural schematic diagram of the car door lock device shown in [FIGURE] in the closed state Figure 1 .
[0040] Figure 4 is Figure 3 the schematic diagram of the process of the car door lock device shown in [FIGURE] entering the first door opening state from the closed state.
[0041] Figure 5 is Figure 3 the structural schematic diagram of the car door lock device shown in [FIGURE] in the first door opening state.
[0042] Figure 6 is Figure 1 the structural schematic diagram of the car door lock device shown in [FIGURE] in the closed state Figure 2 .
[0043] Figure 7 is Figure 6 the schematic diagram of the process of the car door lock device shown in [FIGURE] entering the second door opening state from the closed state.
[0044] Figure 8 is the structural schematic diagram of the car door lock device shown in [FIGURE] in the second door opening state.
[0045] Explanation of reference numerals:
[0046] 10, base; 20, first door knife; 21, first rod body; 22, first flanging; 23, unlocking push rod; 24, first swing arm; 30, second door knife; 31, second rod body; 32, second flanging; 33, unlocking pull rod; 331, hook; 34, second swing arm; 341, first transfer point; 342, second transfer point; 35, guide pulley; 40, lock hook assembly; 41, rotating shaft; 42, turntable; 43, lock hook arm; 44, abutting portion; 45, pulling arm; 50, reset mechanism; 51, guiding surface; 61, first limiting member; 62, second limiting member; 63, third limiting member; 64, fourth limiting member; 65, limiting post; 71, first roller; 72, second roller; 81, center line; 82, horizontal line. Detailed implementation manners
[0047] In order to make the above objects, features and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0048] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.
[0049] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0050] In the present application, unless otherwise clearly specified and limited, if terms such as "mounted", "connected", "connected to", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0051] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "above" or "below" a second feature, etc., the meaning may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "below", "beneath", and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0052] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for illustrative purposes and do not represent the only implementation.
[0053] Refer to Figure 1 and Figure 2 , an embodiment of the present application provides a car door lock device, which is used to cooperate with a first roller 71 and a second roller 72 spaced on the landing door when the car is in the leveling state to unlock the car door. Among them, the leveling state refers to the state of the car when the car door and the landing door are aligned during the lifting and lowering of the car. The first roller 71 and the second roller 72 are both components of the landing door lock device provided on the landing door. The first roller 71 and the second roller 72 are the docking components between the landing door lock device and the car door lock device, which can trigger the locking and unlocking of the landing door lock device. This is not the key point of the invention of this application and will not be elaborated here.
[0054] Specifically, refer to Figure 1 and Figure 2 . The car door lock device of an embodiment includes a base 10, a lock hook assembly 40, a first door knife 20 and a second door knife 30. Among them, the base 10 is used to be fixed to the car door. The lock hook assembly 40 is movably disposed on the base 10, and the lock hook assembly 40 has a locking position for locking the car door and an unlocking position for unlocking the car door. The first door knife 20 and the second door knife 30 are both movably disposed on the base 10, and the first door knife 20 and the second door knife 30 are spaced apart. Refer to Figure 3 , the first door knife 20 is farther from the center line 81 of the car door than the second door knife 30. The first door knife 20 includes a first flanging 22, and the second door knife 30 includes a second flanging 32. When the car is in the leveling state, both the first flanging 22 and the second flanging 32 are located between the first roller 71 and the second roller 72, and the first flanging 22 is closer to the first roller 71 than the second flanging 32.
[0055] Furthermore, the car door lock device has a closed state, a first opening state and a second opening state. Among them, the first opening state is the state in which the landing door is driven by the car door to open when the car door is working normally. The second opening state is the state in which the car door is driven by the landing door to open when the car door fails and needs to be opened manually on the landing door side.
[0056] Refer to Figure 3, in the closed state, the lock hook assembly 40 is in the locked position, the first flanging 22 is spaced from the first roller 71, and the second flanging 32 is spaced from the second roller 72.
[0057] See Figure 5 , in the first door opening state, the first flanging 22 is in abutting engagement with the first roller 71, and the first door knife 20 is driven by the first roller 71 to move towards the second door knife 30 to drive the lock hook assembly 40 into the unlocking position, and the second door knife 30 moves away from the first door knife 20 to bring the second flanging 32 into abutment with the second roller 72.
[0058] See Figure 8 , in the second door opening state, the second flanging 32 is in abutting engagement with the second roller 72, and the second door knife 30 is driven by the second roller 72 to move towards the first door knife 20 to drive the lock hook assembly 40 into the unlocking position.
[0059] In the above car door lock device, when the car is in the leveling state and the car door lock device is in the closed state, both the first flanging 22 and the second flanging 32 are located between the first roller 71 and the second roller 72, and there are gaps between the first flanging 22 and the first roller 71, and between the second flanging 32 and the second roller 72. Thus, during the process of changing from the closed state to the first door opening state, the car door will first move a certain distance, so that the first flanging 22 abuts against the first roller 71 and drives the lock hook assembly 40 into the unlocking position and then drives the landing door to open. That is, the opening of the car door is not synchronized with the opening of the landing door. Therefore, the car door lock device of the present application belongs to an asynchronous structure. Compared with the synchronous structure, the asynchronous structure of the car door lock device has a simpler structure, lower cost, and lower failure rate. At the same time, in the first door opening state, the first flanging 22 abuts against the first roller 71, and the first flanging 22 abuts against the second roller 72. That is, compared with the closed state, the distance between the first door knife 20 and the second door knife 30 is larger in the first door opening state. Therefore, during the process of changing from the closed state to the first door opening state, the first door knife 20 and the second door knife 30 move away from each other, so it can be adapted to the outboard opening type landing door lock device, solving the technical problem that the traditional asynchronous structure car door lock device cannot be adapted to the outboard opening type landing door lock device.
[0060] In addition, in addition to the first door opening state in which the car door normally drives the landing door to open, the above car door lock device also has a second door opening state in which the landing door drives the car door to open, thus ensuring that when the car door fails or the elevator has an accident, the car door can still be opened from the landing door side, thereby improving safety.
[0061] Specifically, see Figures 3 to 5 , Figures 3 to 5Illustrates a schematic diagram of the process of the car door lock device entering the first door-opening state from the door-closed state during the process of the landing door being driven by the car door when the car door can operate normally in an embodiment.
[0062] See Figure 3 , when the car just enters the leveling state, the car door lock device is still in the door-closed state. At this time, the locking hook assembly 40 is still in the locked position. The first flange 22 and the second flange 32 enter between the first roller 71 and the second roller 72, and there is a first gap between the first flange 22 and the first roller 71, and a second gap between the second flange 32 and the second roller 72. In this way, it is ensured that after the car door is closed, during the lifting process of the car, the car door lock device will not interfere with the first roller 71 and the second roller 72.
[0063] See Figure 4 , then the car door is first driven by an opener (not shown) to open a certain distance. Taking the direction in Figure 4 as an example, the car door first moves a certain distance to the left and drives the entire car door lock device to move to the left. The first roller 71 and the second roller 72 are arranged on the landing door side structure, so the first roller 71 and the second roller 72 will not move. As the entire door lock device moves to the left, the first flange 22 will contact the first roller 71.
[0064] See Figure 5 , as the car door further moves to the left, the first door knife 20 will be driven by the first roller 71 to move towards the second door knife 30 (to the right) to drive the locking hook assembly 40 into the unlocked position. At this time, the locking hook assembly 40 releases the lock on the car door, enabling the car door to continue moving to the left until it is fully opened. And during this process, the first flange 22 exerts a leftward thrust on the first roller 71 to drive the landing door to open. The second door knife 30 moves away from the first door knife 20 under the action of gravity to make the second flange 32 contact the second roller 72. In this way, it is ensured that when closing the door, when the car door moves to the right, the second door knife 30 can exert a rightward thrust on the second roller 72, thereby driving the landing door to close.
[0065] Specifically, see Figures 6 to 8 , Figures 6 to 8 Illustrates a process diagram of the car door lock device entering the second door-opening state from the door-closed state when it is necessary to drive the car door to open by the landing door in the event of a car door failure or an accident in an embodiment.
[0066] Similarly, see Figure 6 , when the car just enters the leveling state, the car door lock device is still in the door-closed state. At this time, the locking hook assembly 40 is still in the locked position. See Figure 7 , when there is an external force to open the landing door from the landing door side, the landing door is first opened a certain distance. Taking Figure 7Taking the middle direction as an example, the landing door first moves leftward by a certain distance, driving the first roller 71 and the second roller 72 to move leftward until the second roller 72 abuts against the second flange 32. Refer to Figure 8 , as the landing door further moves leftward, the second door knife 30 moves (leftward) in the direction close to the first door knife 20 under the drive of the second roller 72 to drive the hook assembly 40 into the unlocking position. At this time, the hook assembly 40 releases the locking of the car door. As the landing door continues to move leftward, the second roller 72 can apply a leftward force to the second flange 32, thereby driving the car door to move leftward until it is fully opened, realizing the opening of the car door from the landing door side when a failure or accident occurs to the car door.
[0067] Refer to Figure 3 , the car door lock device further includes a reset mechanism 50. Preferably, the reset mechanism 50 is arranged on the door operator (not shown). In the closed door state, the reset mechanism 50 abuts against the second door knife 30 to maintain the second flange 32 at an initial position spaced from the second roller 72, thereby avoiding interference between the second door knife 30 and the second roller 72 during the lifting and lowering of the car.
[0068] Refer to Figure 5 , in the first open door state, the reset mechanism 50 is separated from the second door knife 30, so that the second door knife 30 moves in the direction away from the first door knife 20 under the action of gravity and enters the first open door position where the second flange 32 abuts against the second roller 72, thereby ensuring that when closing the door, the second door knife 30 can apply a rightward thrust to the second roller 72, thereby driving the landing door to close.
[0069] Furthermore, refer to Figure 4 , during the process of the car door lock device entering the closed door state from the first open door state. Specifically, after the landing door is fully closed and before the car door is fully closed, the reset mechanism 50 cooperates with the second door knife 30 to drive the second door knife 30 to return from the first open door position to the initial position spaced from the second roller 72, thereby avoiding interference between the second door knife 30 and the second roller 72 during the lifting and lowering of the car.
[0070] Specifically, continue to refer to Figure 3, the reset mechanism 50 is provided with a guiding surface 51. In the closed door state, the second door knife 30 abuts and cooperates with the guiding surface 51. In the first open door state, the second door knife 30 is separated from the guiding surface 51. During the process of the car door lock device entering the closed door state from the first open door state, the second door knife 30 moves along the guiding surface 51 to guide the second door knife 30 to return from the first open door position to the initial position. Specifically, in one embodiment, the guiding surface 51 is an arc surface. During the process of the car door lock device entering the closed door state from the first open door state, the car door drives the second door knife 30 to move to the right. During this process, the second door knife 30 first contacts the bottom end of the guiding surface 51. As the car door continues to move to the right, the second door knife 30 moves along the guiding surface 51, causing the second door knife 30 to move diagonally upward to the left as a whole and gradually move away from the second roller 72 until it returns to the initial position. At this time, the guiding surface 51 abuts against the second door knife 30 to maintain the second door knife 30 at the initial position. It should be noted that in another embodiment, the guiding surface 51 can also be an S-shaped arc surface or an inclined straight surface, as long as it can guide the second door knife 30 to return to the initial position to separate from the second roller 72, which is not limited herein.
[0071] Furthermore, a rotatable guide pulley 35 is provided on the second door knife 30. During the process of the car door lock device entering the closed door state from the first open door state, the guide pulley 35 rolls and cooperates with the guiding surface 51. In this way, the frictional force between the second door knife 30 and the guiding surface 51 can be reduced, thereby reducing frictional losses and improving the service life.
[0072] See Figure 1 , optionally, in one embodiment, the lock hook assembly 40 includes a turntable 42, a lock hook arm 43, an abutting portion 44, and a pulling arm 45. The turntable 42 is rotatably connected to the base 10 through a rotating shaft 41. The lock hook arm 43 is connected to the edge of the turntable 42. In the locked position, the lock hook arm 43 locks the car door. In the unlocked position, the lock hook arm 43 releases the lock on the car door. The abutting portion 44 is arranged on the edge of the turntable 42 and is located on both sides of the rotating shaft 41 respectively with the lock hook arm. The abutting portion 44 is used to cooperate with the first door knife 20 to drive the lock hook arm 43 to move from the locked position to the unlocked position during the process of the car door lock device entering the first open door state. The pulling arm 45 is connected to the edge of the turntable 42 and is arranged at an angle with the lock hook arm 43. The pulling arm 45 is used to cooperate with the second door knife 30 to drive the lock hook arm 43 to move from the locked position to the unlocked position during the process of the car door lock device entering the second open door state.
[0073] Specifically, see Figure 3 , the first door knife 20 is connected with an unlocking push rod 23. In the closed door state of the car door lock device, the unlocking push rod 23 abuts and cooperates with the abutting portion 44. See Figure 5, during the process of the car door lock device entering the first door opening state, the first door knife 20 moves to the right driven by the first roller 71, thereby driving the unlocking push rod 23 to push the abutting portion 44, causing the turntable 42 to rotate, and finally moving the lock hook arm 43 from the locked position to the unlocked position, realizing the unlocking of the car door. Further, the unlocking push rod 23 is perpendicularly arranged with the first door knife 20. One end of the unlocking push rod 23 is connected to the first door knife 20, and the other end of the unlocking push rod 23 extends towards the lock hook assembly 40. Understandably, in other embodiments, if the position of the lock hook assembly 40 is closer to the first door knife 20, the length of the unlocking push rod 23 can be reduced, or even the unlocking push rod 23 can be cancelled.
[0074] Further, referring to Figure 6 , the second door knife 30 is connected with an unlocking pull rod 33. The unlocking pull rod 33 is provided with a hook 331. When the car door lock device is in the closed state, the hook 331 is arranged at an interval from the pull arm 45. Referring to Figure 8 , during the process of the car door lock device entering the second door opening state, the second door knife 30 moves to the left driven by the second roller 72, thereby driving the unlocking pull rod 33 and the hook 331 to pull the pull arm 45, causing the turntable 42 to rotate, and finally moving the lock hook arm 43 from the locked position to the unlocked position, realizing the unlocking of the car door. Further, the unlocking pull rod 33 is perpendicularly arranged with the second door knife 30. One end of the unlocking pull rod 33 is connected to the second door knife 30, and the other end of the unlocking push rod 23 extends towards the lock hook assembly 40 and is provided with a hook 331. Understandably, in other embodiments, if the position of the lock hook assembly 40 is closer to the second door knife 30, the length of the unlocking pull rod 33 can be reduced, or even the unlocking pull rod 33 can be cancelled.
[0075] Referring to Figure 1 , the first door knife 20 further includes a first rod body 21. A first flange 22 is connected to the side of the first rod body 21 close to the second door knife 30, and the first flange 22 extends away from the base 10. Referring to Figure 3 , when in the closed state, there is a first gap between the first flange 22 and the first roller 71, so as to ensure that the first flange 22 will not interfere with the first roller 71 when the car ascends and descends; referring to Figure 5 , when in the first door opening state, the first flange 22 is in abutting cooperation with the first roller 71, thereby realizing the door opening action.
[0076] Similarly, referring to Figure 1 , the second door knife 30 further includes a second rod body 31. A second flange 32 is connected to the side of the second rod body 31 close to the first door knife 20, and the second flange 32 extends away from the base 10. Referring to Figure 6, in the closed door state, there is a second gap between the second flanging 32 and the second roller 72, so as to ensure that the second flanging 32 will not interfere with the second roller 72 when the car ascends or descends; see Figure 5 and Figure 8 , in the first door open state and the second door open state, the second flanging 32 is in abutting cooperation with the second roller 72. Specifically, see Figure 5 , in the first door open state, the second flanging 32 is in abutting cooperation with the second roller 72, so that when closing the door, the second flanging 32 can apply a rightward thrust to the second roller 72. See Figure 8 , in the second door open state, the second flanging 32 is in abutting cooperation with the second roller 72, so that the landing door can apply a leftward thrust to the second flanging 32 through the second roller 72 to open the car door.
[0077] Optionally, in an embodiment, the first door knife 20 and the second door knife 30 are both swingably arranged on the base 10. Specifically, see Figure 1 The car door lock device further includes a first swing arm 24 and a second swing arm 34. One end of the first swing arm 24 is rotatably connected to the base 10, and the other end of the first swing arm 24 is rotatably connected to the first rod 21. One end of the second swing arm 34 is rotatably connected to the base 10, and the other end of the second swing arm 34 is rotatably connected to the second rod 31. In this way, the first door knife 20 and the second door knife 30 can swing relative to the base 10, so as to realize the switching of the car door lock device between the closed door state, the first door open state and the second door open state.
[0078] Preferably, in an embodiment, the number of the first swing arms 24 is at least two, and the at least two first swing arms 24 are arranged at intervals along the length direction of the first door knife 20, so as to ensure that the first door knife 20 always remains in a vertical state during the swinging process. Similarly, the number of the second swing arms 34 is at least two, and the at least two second swing arms 34 are arranged at intervals along the length direction of the second door knife 30, so as to ensure that the second door knife 30 always remains in a vertical state during the swinging process.
[0079] Furthermore, see Figure 5, set the connection point between the second swing arm 34 and the base 10 as the first transfer point 341, and the connection point between the second swing arm 34 and the second rod body 31 as the second transfer point 342. Among them, in the first door opening state, the angle α between the line connecting the first transfer point 341 and the second transfer point 342 and the horizontal line 82 passing through the first transfer point 341 is a negative angle, that is, the second transfer point 342 is located below the horizontal line 82. Specifically, during the closing process of the door, the second door knife 30 abuts against the second roller 72, that is, there is an interaction force between the second door knife 30 and the second roller 72. By making the angle α a negative angle, it is ensured that during the closing process of the door, the second door knife 30 can exert a rightward thrust on the second roller 72, and the reaction force of the second roller 72 will not push the second door knife 30 back to the initial position, thereby ensuring that the second door knife 30 can only be reset to the initial position through the reset mechanism 50. It should be noted that in the closed door state and in the second door opening state, the angle α between the line connecting the first transfer point 341 and the second transfer point 342 and the horizontal line 82 passing through the first transfer point 341 is a positive angle.
[0080] See Figure 3 , on the side of the base 10 away from the second door knife 30 of the first door knife 20, a first limiting member 61 is provided, and on the side of the first door knife 20 close to the second door knife 30, a second limiting member 62 is provided. In the closed door state, the first swing arm 24 abuts against the first limiting member 61, and the first limiting member 61 is used to limit the distance that the first door knife 20 swings leftward (away from the second door knife 30) under the action of gravity, so as to ensure that in the closed door state, the unlocking push rod 23 can abut against the abutting portion 44 of the lock hook assembly 40. See Figure 5 , in the first door opening state, the first flanging 22 abuts against the second limiting member 62, and the second limiting member 62 is used to limit the distance that the first door knife 20 swings rightward (towards the second door knife 30). It is ensured that during the process of entering the first door opening state, after the first door knife 20 drives the lock hook assembly 40 into the unlocking position, it will no longer swing rightward, so that the first flanging 22 exerts a leftward thrust on the first roller 71 to drive the landing door to open. Preferably, both the first limiting member 61 and the second limiting member 62 are limiting rods, and the limiting rods are fixed to the base 10 through mounting brackets.
[0081] Similarly, continue to see Figure 6 , in an embodiment, on the side of the base 10 away from the first door knife 20 of the second door knife 30, a third limiting member 63 is provided, and on the side of the second door knife 30 close to the first door knife 20, a fourth limiting member 64 is provided, and a limiting post 65 is provided on the second rod body 31; See Figure 5, in the first door opening state, the limit post 65 abuts against the third limiting member 63 to limit the distance that the second door knife 30 swings away from the first door knife 20 (to the right) under the action of gravity, so as to ensure that in the first door opening state, the second door knife 30 can abut against the second roller 72, so that when closing the door, the second door knife 30 can drive the landing door to close through the second roller 72. Refer to Figure 8 , in the second door opening state, the second flanging 32 abuts against the fourth limiting member 64. The fourth limiting member 64 is used to limit the distance that the second door knife 30 swings towards the first door knife 20 (to the left), and ensure that in the process of entering the second door opening state, after the second door knife 30 drives the hook assembly 40 into the unlocking position, it will no longer swing to the left, so that the second roller 72 applies a leftward thrust to the second door knife 30 to drive the car door to open. Preferably. The third limiting member 63 can be a limiting block, the fourth limiting member 64 is a limiting rod, and the fourth limiting member 64 and the second limiting member 62 can be installed on the same mounting bracket, so as to save space and cost.
[0082] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0083] The above-described embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.
Claims
1. A car door lock device is used to cooperate with a first roller and a second roller which are spaced apart on a landing door when the car is in the leveling state. It is characterized in that The car door lock device includes: A base for fixing to the car door; A locking hook assembly movably arranged on the base, the locking hook assembly having a locking position for locking the car door and an unlocking position for releasing the locking of the car door; A first door knife and a second door knife, both the first door knife and the second door knife are movably arranged on the base, the first door knife and the second door knife are arranged at intervals, and the first door knife is farther from the center line of the car door than the second door knife. The first door knife includes a first flanging, and the second door knife includes a second flanging. When the car is in the leveling state, both the first flanging and the second flanging are located between the first roller and the second roller, and the first flanging is closer to the first roller than the second flanging; The car door lock device has a closed door state, a first door opening state in which the car door drives the landing door to open, and a second door opening state in which the landing door drives the car door to open, where: In the closed door state, the locking hook assembly is in the locking position, the first flanging is spaced from the first roller, and the second flanging is spaced from the second roller; In the first door opening state, the first flanging abuts against the first roller, and the first door knife moves in the direction close to the second door knife under the drive of the first roller to drive the locking hook assembly into the unlocking position, and the second door knife moves in the direction away from the first door knife to make the second flanging abut against the second roller; In the second door opening state, the second flanging abuts against the second roller, and the second door knife moves in the direction close to the first door knife under the drive of the second roller to drive the locking hook assembly into the unlocking position.
2. The car door lock device according to claim 1, wherein The car door lock device further includes a reset mechanism. In the closed door state, the reset mechanism abuts against the second door knife to maintain the second flanging at an initial position spaced from the second roller. In the first door opening state, the reset mechanism is separated from the second door knife to enable the second door knife to move in the direction away from the first door knife under the action of gravity and enter a first door opening position where the second flanging abuts against the second roller. During the process of the car door lock device entering the closed door state from the first door opening state, the reset mechanism cooperates with the second door knife to drive the second door knife to return from the first door opening position to the initial position.
3. The car door lock device according to claim 2, characterized in that, The reset mechanism is provided with a guiding surface. In the closed door state, the second door knife abuts and cooperates with the guiding surface. In the first door opening state, the second door knife is separated from the guiding surface. During the process of the car door lock device entering the closed door state from the first door opening state, the second door knife moves along the guiding surface to guide the second door knife to return from the first door opening position to the initial position.
4. The car door lock device according to claim 3, characterized in that, A rotatable guide pulley is arranged on the second door knife. During the process of the car door lock device entering the closed door state from the first door opening state, the guide pulley rolls and cooperates with the guiding surface.
5. The car door lock device according to claim 1, characterized in that, The hook assembly includes: A turntable rotatably connected to the base through a rotating shaft; A hook arm connected to the edge of the turntable. In the locked position, the hook arm locks the car door. In the unlocked position, the hook arm releases the lock on the car door; An abutting portion provided on the edge of the turntable. The abutting portion and the hook arm are located on both sides of the rotating shaft. The abutting portion is used to cooperate with the first door knife during the process of the car door lock device entering the first door opening state to drive the hook arm to move from the locked position to the unlocked position; A pull arm connected to the edge of the turntable and arranged at an angle with the hook arm. The pull arm is used to cooperate with the second door knife during the process of the car door lock device entering the second door opening state to drive the hook arm to move from the locked position to the unlocked position.
6. The car door lock device according to claim 5, characterized in that, The first door knife is connected with an unlocking push rod. When the car door lock device is in the closed state, the unlocking push rod abuts and cooperates with the abutting portion. During the process of the car door lock device entering the first door opening state, the unlocking push rod pushes the abutting portion to enable the hook arm to move from the locked position to the unlocked position; and / or, The second door knife is connected with an unlocking pull rod. The unlocking pull rod is provided with a hook. When the car door lock device is in the closed state, the hook is arranged at an interval from the pull arm. During the process of the car door lock device entering the second door opening state, the hook pulls the pull arm to enable the hook arm to move from the locked position to the unlocked position.
7. The car door lock device according to claim 5, characterized in that The first door knife further includes a first rod body. The first flange is connected to the side of the first rod body close to the second door knife, and the first flange extends in a direction away from the base; The second door knife further includes a second rod body. The second flange is connected to the side of the second rod body close to the first door knife, and the second flange extends in a direction away from the base.
8. The car door lock device according to claim 7, characterized in that, The car door lock device further includes a first swing arm and a second swing arm. One end of the first swing arm is rotatably connected to the base, and the other end of the first swing arm is rotatably connected to the first rod body; one end of the second swing arm is rotatably connected to the base, and the other end of the second swing arm is rotatably connected to the second rod body.
9. The car door lock device according to claim 8, characterized in that, The connection point between the second swing arm and the base is the first transfer point, and the connection point between the second swing arm and the second rod body is the second transfer point. Among them, in the first door opening state, the included angle between the connection line between the first transfer point and the second transfer point and the horizontal line passing through the first transfer point is a negative angle.
10. The car door lock device according to claim 8, wherein The base is provided with a first limiting member on the side of the first door knife away from the second door knife, and a second limiting member on the side of the first door knife close to the second door knife. In the closed state, the first swing arm abuts against the first limiting member. In the first door opening state, the first flange abuts against the second limiting member; and / or, The base is provided with a third limiting member on a side of the second door knife away from the first door knife, and a fourth limiting member on a side of the second door knife close to the first door knife. A limiting post is provided on the second rod body. In the first door opening state, the limiting post abuts against the third limiting member, and in the second door opening state, the second flanging abuts against the fourth limiting member.