Power-off automatic opening mechanism for automatic sliding door and automatic sliding door

By designing an automatic power-off opening mechanism in the automatic sliding door, the mechanical structure of the drive part, the first elastic part and the electric locking device is used to solve the problem of automatic power-off opening in the case of power-off, reducing maintenance costs and improving the stability and reliability of the equipment.

CN222991357UActive Publication Date: 2025-06-17WUHAN HUAKANG CENTURY MEDICAL CO LTD
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Patent Information

Application Number
CN202421844818.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-06-17
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

The automatic sliding door needs an external backup power supply in the event of power outage, resulting in frequent maintenance, high cost and difficult to guarantee stability and reliability.

Method used

An automatic power-off opening mechanism is designed, including a driving member, a first elastic member and an electric locking device. The automatic power-off opening function of the automatic sliding door is realized through a mechanical structure, avoiding dependence on electrical equipment.

Benefits of technology

It realizes automatic opening of the door leaf in the event of power outage, avoids the use of backup power, reduces maintenance costs, and improves the stability and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a power-off automatic opening mechanism used for an automatic sliding door and the automatic sliding door, the power-off automatic opening mechanism comprises a driving piece arranged on an electromechanical beam main body, the electromechanical beam main body comprises a first position and a second position which are arranged at an interval along the moving direction of a door leaf, the driving part can move between a first position and a second position in the first direction parallel to the moving direction of the door leaf, the door leaf can be freely opened and closed when the driving part moves to the first position, and the driving part drives the door leaf to move towards the door opening position when moving from the first position to the second position. The first elastic piece is connected with the driving piece and the electromechanical beam main body, and the driving piece overcomes the elastic force of the first elastic piece when moving from the second position to the first position; and the electric locking device is arranged on the electromechanical beam main body, is located at the first position, is connected with the driving piece when powered on to keep the driving piece at the first position, and is disconnected from the driving piece when powered off. The mode for achieving the power-off opening function of the automatic sliding door is stable and reliable.
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Description

Technical Field

[0001] The utility model relates to the technical field of automatic sliding doors, and particularly relates to a power-off automatic opening mechanism for an automatic sliding door and an automatic sliding door. Background Art

[0002] Due to fire protection regulations, automatic sliding doors cannot be used on evacuation walkways. However, when the door body automatically opens in case of an emergency (fire or power failure) and does not become an obstacle on the evacuation passage, it can be considered applicable to evacuation walkways.

[0003] Currently, if an automatic sliding door adopts power-off automatic opening, it needs to be externally connected to a set of backup power supplies. When the external power is cut off, the backup power supplies are switched in to control the automatic opening of the automatic sliding door. The backup power supplies need to be maintained regularly, replaced after a long time, and a separate control module needs to be added additionally, resulting in high costs and difficult to ensure stability and reliability. Summary of the Utility Model

[0004] Based on the above description, the utility model provides a power-off automatic opening mechanism for an automatic sliding door and an automatic sliding door to solve the problems in the related technology that when an automatic sliding door adopts power-off automatic opening, it needs to be externally connected to a set of backup power supplies, the backup power supplies need to be maintained regularly, replaced after a long time, and a separate control module needs to be added additionally, resulting in high costs and difficult to ensure stability and reliability.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] In a first aspect, the present application provides a power-off automatic opening mechanism for an automatic sliding door, including: a driving member disposed on the main body of the electromechanical beam of the automatic sliding door, the main body of the electromechanical beam including a first position and a second position spaced along the moving direction of the door leaf, the driving member being movable between the first position and the second position in a first direction parallel to the moving direction of the door leaf, when the driving member moves to the first position, the door leaf can be freely opened and closed, and when the driving member moves from the first position to the second position, it drives the door leaf to move towards the open position; a first elastic member connecting the driving member and the main body of the electromechanical beam, when the driving member moves from the second position to the first position, it overcomes the elastic force of the first elastic member; and an electric locking device disposed on the main body of the electromechanical beam and located at the first position, the electric locking device being used to connect to the driving member located at the first position when powered on to keep the driving member at the first position, and disconnecting from the driving member when powered off.

[0007] Preferably, the second position and the first position are sequentially distributed in the direction of the door leaf moving from the open position to the closed position, when the driving member moves from the first position to the second position, it can abut against the door leaf, and when continuing to move to the first position, it drives the door leaf to move towards the open position.

[0008] Preferably, the projection of the driving member and the door leaf on a plane perpendicular to the first direction intersects, and the door leaf and the driving member are arranged in sequence in the direction in which the door leaf moves from the open position to the closed position.

[0009] Preferably, the power-off automatic opening mechanism further includes a limiting structure, which is arranged on the main body of the electromechanical beam and located at the second position. The limiting structure is used to connect with the driving member when the driving member moves from the first position to the second position, and limit the driving member from moving to the first position. When the driving member is at the second position, it limits the door leaf from moving to the closed position.

[0010] Preferably, the limiting structure includes: a limiting lock tongue, which can move along a second direction perpendicular to the first direction. The limiting lock tongue includes a locking state in which it moves to intersect with the projection of the driving member on a plane perpendicular to the first direction, and an unlocking state in which it moves to not intersect with the projection of the driving member on a plane perpendicular to the first direction; and a second elastic member, which connects the limiting lock tongue and the cavity. When the limiting lock tongue moves from the locking state to the unlocking state, it overcomes the elastic force of the second elastic member; wherein, a lock hole cooperating with the limiting lock tongue is provided on the driving member. When the driving member is at the second position, the lock hole is aligned with the limiting lock tongue, and is adapted to drive the limiting lock tongue to move from the locking state to the unlocking state when the driving member moves from the first position to the second position. When the driving member moves to the second position, the limiting lock tongue moves to the locking state under the elastic force of the second elastic member and inserts into the lock hole.

[0011] Preferably, the limiting structure further includes an unlocking member connected to the limiting lock tongue, and the unlocking member is used for personnel to manipulate to drive the limiting lock tongue to move.

[0012] Preferably, the power-off automatic opening mechanism further includes a sensor, which is arranged on the main body of the electromechanical beam and located at the second position. The sensor is connected to the door machine control module, and the sensor is triggered when the driving member moves to the second position; wherein, when the sensor is triggered, it sends a trigger signal to the door machine control module, and the door machine control module maintains the shutdown state after receiving the trigger signal.

[0013] Preferably, the electric locking device includes an electromagnetic lock, and the driving member can be magnetically adsorbed by the electromagnetic lock.

[0014] Preferably, the first elastic member includes a tension spring.

[0015] In a second aspect, the present application provides an automatic sliding door, including the power-off automatic opening mechanism for an automatic sliding door as described in the first aspect.

[0016] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects:

[0017] (1) By providing a driving member, a first elastic member, and an electric locking device, when the driving member moves between a first position and a second position on the main body of the electromechanical beam, the driving member moves from the second position to the first position against the elastic force of the first elastic member. When the driving member moves to the first position, it is connected to the driving member through the electric locking device. The electric locking device overcomes the elastic force of the first elastic member to lock the driving member and keep it in the first position. At this time, the door leaf can be freely opened and closed, and the driving member does not affect the opening and closing actions of the door leaf. When power is off, the electric locking device is powered off and disengaged from the driving member, and the driving member moves from the first position to the second position under the action of the elastic force of the first elastic member, and drives the door station to move to the open position. During design, when the driving member moves to the second position, the door leaf is driven by the driving member to move to the open position, so as to realize the power-off automatic opening function of the automatic sliding door. The automatic opening mechanism of the present application enables the automatic sliding door to open without relying on electrical equipment when power is off, eliminates the need for a backup power supply, and realizes the power-off automatic opening function of the automatic sliding door through a pure mechanical structure, with a simple and stable structure and high reliability.

[0018] (2) The present application provides a limit structure. When power is off, the driving member moves from the first position to the second position and drives the door leaf to move to the open position. When the driving member moves to the second position, it is connected to the limit structure, and the movement of the driving member to the first position is restricted by the limit structure. At this time, the door leaf is located at the open position. The driving member is configured to restrict the door leaf from moving to the closed position when in the second position. The limit structure restricts the driving member from moving to the first position, and the driving member restricts the door leaf from moving to the closed position when in the second position, so as to keep the door leaf in the open position and ensure that the automatic sliding door is in the open state.

[0019] (3) The limit structure of the present application is provided to include a limit lock tongue and a second elastic member. A lock hole cooperating with the limit lock tongue is provided on the driving member. When the driving member moves from the first position to the second position, it drives the limit lock tongue to move from the locked state to the unlocked state against the elastic force of the second elastic member. When the driving member moves to the second position, the limit lock tongue moves to the locked state under the action of the elastic force of the second elastic member and inserts into the lock hole, thereby realizing the function of automatically locking the driving member through a mechanical structure.

[0020] (4) The present application provides a sensor, which is connected to the door machine control module of the automatic sliding door. When the driving member moves to the second position, it triggers the sensor, and the sensor sends a trigger signal to the door machine control module when triggered. After receiving the trigger signal, the door machine control module maintains the stop state. When power is off and the driving member moves to the second position, it is locked by the limit structure, and the sensor is in the triggered state. After power is restored, the door machine control module maintains the stop state after receiving the sensor signal, avoiding damage to the automatic sliding door caused by the door machine control module controlling the door leaf action after power is restored. Description of the Drawings

[0021] Figure 1 This is a schematic structural diagram of the power-off automatic opening mechanism for an automatic sliding door provided by an embodiment of the present utility model. Among them, the driving member is displaced to the first position, and the door leaf is in the closed position;

[0022] Figure 2 This is a schematic structural diagram of the power-off automatic opening mechanism for an automatic sliding door provided by an embodiment of the present utility model. Among them, the driving member is located between the first position and the second position;

[0023] Figure 3 This is a schematic structural diagram of the power-off automatic opening mechanism for an automatic sliding door provided by an embodiment of the present utility model. Among them, the driving member is displaced to the second position, and the door leaf is in the open position;

[0024] Figure 4 This is a schematic diagram when the driving member and the limit structure are connected in the power-off automatic opening mechanism for an automatic sliding door provided by an embodiment of the present utility model;

[0025] Explanation of reference numerals:

[0026] 1. Door leaf; 2. Driving member; 21. Lock hole; 3. First elastic member; 4. Electric locking device; 5. Limit structure; 51. Limit locking tongue; 52. Second elastic member; 53. Mounting block; 54. Unlocking member; 6. Sensor; 7. Triggering member. Detailed implementation manners

[0027] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant attached drawings. Embodiments of the present application are shown in the attached drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0029] It will be appreciated that spatial relationship terms such as "under", "below", "lower", "beneath", "above", "upper", etc. can be used herein to describe the relationship of one element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device during use and operation. For example, if the device in the attached drawings is flipped, an element or feature described as "under other elements" or "beneath them" or "under it" will be oriented "above" the other elements or features. Thus, the exemplary terms "under" and "beneath" can include both the upper and lower orientations. Additionally, the device may also include other orientations (such as rotating 90 degrees or other orientations), and the spatial descriptors used herein are accordingly interpreted.

[0030] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection", if there is a transfer of electrical signals or data between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0031] In the description of the present application, the terms "first" and "second" are used for descriptive purposes only 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 one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0032] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0033] Referring to Figures 1-4 As shown, an embodiment of the present application provides a power-off automatic opening mechanism for an automatic sliding door, including: a driving member 2, a first elastic member 3, and an electric locking device 4.

[0034] The driving member 2 is arranged on the main body of the electromechanical beam of the automatic sliding door. The main body of the electromechanical beam includes a first position and a second position arranged at intervals along the moving direction of the door leaf 1. The driving member 2 can move between the first position and the second position along a first direction parallel to the moving direction of the door leaf 1. When the driving member 2 moves to the first position, the door leaf 1 can be freely opened and closed, and when the driving member 2 moves from the first position to the second position, it drives the door leaf 1 to move towards the open position.

[0035] The first elastic member 3 is respectively connected to the driving member 2 and the main body of the electromechanical beam. When the driving member 2 moves from the second position to the first position, it overcomes the elastic force of the first elastic member 3.

[0036] The electric locking device 4 is arranged on the main body of the electromechanical beam and is located at the first position. The electric locking device 4 is used to connect to the driving member 2 located at the first position when powered on, so that the driving member 2 is kept at the first position, and is disconnected from the driving member 2 when powered off.

[0037] Refer to Figures 1-3 As shown, the power-off automatic opening mechanism can be installed on the main body of the electromechanical beam of the automatic sliding door. In order to achieve the purpose that when the driving member 2 moves from the first position to the second position, it drives the door leaf 1 to move towards the open position. The second position and the first position are set to be distributed in sequence in the direction of the door leaf 1 moving from the open position to the closed position. And, the driving member 2 is set to be able to abut against the door leaf 1 when moving from the first position to the second position, and drive the door leaf 1 to move towards the open position when continuing to move towards the first position.

[0038] Refer to Figures 1-3 As shown, specifically, the driving member 2 can be distributed vertically with the door leaf 1, or distributed with the door leaf 1 in a direction perpendicular to the plane of the door leaf 1. In this embodiment, the latter is used for illustration. The driving member 2 is set to intersect with the projection of the door leaf 1 on a plane perpendicular to the first direction, and the door leaf 1 and the driving member 2 are arranged in sequence in the direction of the door leaf 1 moving from the open position to the closed position. When adopting this setting, the first position needs to be set at one end of the main body of the electromechanical beam close to the closed position of the door leaf 1, so that when the driving member 2 is at the first position, it has no contact with the door leaf 1 and will not affect the normal opening and closing of the door leaf 1. Through this setting, when the driving member 2 moves from the first position to the second position, it directly abuts against the door leaf 1 and drives the door leaf 1 to move towards the open position. The driving method is simple, there is no need to set other transmission structures, and the structure is simple and the cost is low.

[0039] Refer to Figures 1-3 As shown, in the design, when the driving member 2 moves to the second position, the door leaf 1 is in the open position, that is, the automatic sliding door is in the fully open state.

[0040] Refer to Figures 1-3As shown, the electric locking device 4 can adopt an electromagnetic lock, and the corresponding driving member 2 can be magnetically adsorbed by the electromagnetic lock. When the electromagnetic lock is energized, it generates a magnetic force to adsorb the driving member 2, overcoming the elastic force of the first elastic member 3 to keep the driving member 2 in the first position. When the electromagnetic lock is de-energized, the magnetic force disappears, the driving member 2 is disconnected from the electromagnetic lock, and moves towards the second position under the elastic force of the first elastic member 3. Using an electromagnetic lock to restrict the driving member 2 in the first position when energized and release the driving member 2 when de-energized has a simple structure and is easy to implement.

[0041] Referring to Figures 1-3 As shown, the first elastic member 3 can adopt a tension spring. Specifically, the axis of the tension spring is parallel to the first direction, the tension spring is located on the side of the driving member 2 away from the electromagnetic lock in the first direction, and both ends of the tension spring are fixed to the main body of the electromechanical beam and the driving member 2 respectively. When the driving member 2 is in the second position, the tension spring can be in an undeformed state or a slightly stretched state. When the driving member 2 moves towards the first position, the tension spring is stretched. When the driving member 2 reaches the first position, the tension spring is in a stretched state. When the driving member 2 is released by the electromagnetic lock, the tension of the tension spring is used to drive the driving member 2 towards the second position. The tension spring only needs to overcome the friction of the free movement of the door leaf 1, thereby driving the door leaf 1 towards the open position. The structure is simple and the cost is low.

[0042] Referring to Figure 1 and Figures 3-4 As shown, when the driving member 2 is in the second position and the door leaf 1 is in the open position, in order to prevent the door leaf 1 from moving towards the closed position, a limiting structure 5 located at the second position is provided on the main body of the electromechanical beam. The limiting structure 5 is used to connect with the driving member 2 when the driving member 2 moves from the first position to the second position and restrict the driving member 2 from moving towards the first position. At this time, the door leaf 1 is restricted from moving towards the closed position under the restriction of the driving member 2. Through this setting, when the power is off, the door leaf 1 can be kept in the open position to ensure that the automatic sliding door is in the open state.

[0043] Referring to Figures 3-4As shown, the limiting structure 5 includes a limiting lock tongue 51 and a second elastic member 52. The limiting lock tongue 51 can move along a second direction perpendicular to the first direction. The limiting lock tongue 51 includes a locked state in which it moves to intersect with the projection of the driving member 2 on a plane perpendicular to the first direction, and an unlocked state in which it moves to not intersect with the projection of the driving member 2 on a plane perpendicular to the first direction. The second elastic member 52 connects the limiting lock tongue 51 and the cavity. When the limiting lock tongue 51 moves from the locked state to the unlocked state, it overcomes the elastic force of the second elastic member 52. At the same time, a lock hole 21 that cooperates with the limiting lock tongue 51 is provided on the driving member 2. When the driving member 2 is in the second position, the lock hole 21 is aligned with the limiting lock tongue 51, which is suitable for driving the limiting lock tongue 51 to move from the locked state to the unlocked state when the driving member 2 moves from the first position to the second position, and when the driving member 2 moves to the second position, the limiting lock tongue 51 moves to the locked state under the elastic force of the second elastic member 52 and is inserted into the lock hole 21.

[0044] Reference Figures 3-4 As shown, specifically, the limit lock tongue 51 and the driving member 2 are distributed in a plane perpendicular to the first direction, and the installation position of the limit lock tongue 51 is designed according to the actual situation. In this embodiment, the limit lock tongue 51 is located on the side of the driving member 2 away from the door leaf 1, and the moving direction of the limit lock tongue 51 is perpendicular to the plane of the door leaf 1. Correspondingly, the lock hole 21 on the driving member 2 is opened on the side thereof away from the door leaf 1.

[0045] In this embodiment, the position-limiting lock tongue 51 is installed on the main body of the electromechanical beam through the mounting block 53. The mounting block 53 is located on the side of the driving member 2 away from the door leaf 1 and fixed on the main body of the electromechanical beam. A through hole for the position-limiting lock tongue 51 to be installed is provided on the mounting block 53. The through hole is penetrated at both ends along the moving direction of the position-limiting lock tongue 51. The position-limiting lock tongue 51 passes through the through hole and can move relative to the mounting block 53. The second elastic member 52 can be a tension spring, which is sleeved on the position-limiting lock tongue 51 and located on the side of the mounting block 53 away from the door leaf 1. The two ends of the tension spring are respectively fixed to the mounting block 53 and the position-limiting lock tongue 51, and overcome the elastic force of the tension spring when the position-limiting lock tongue 51 moves away from the door leaf 1.

[0046] With the above settings, when the driving member 2 is in the first position, the limit locking tongue 51 is kept in the locked state under the action of the second elastic member 52, that is, the projections of the limit locking tongue 51 and the driving member 2 on the plane perpendicular to the first direction intersect. When the driving member 2 is released by the electromagnetic lock, the driving member 2 moves to the second position until it contacts the limit locking tongue 51. The driving member 2 cooperates with the arc surface on the limit locking tongue 51 to drive the limit locking tongue 51 to move away from the door leaf 1 against the elastic force of the second elastic member 52. When the limit locking tongue 51 moves to the unlocked state, the driving member 2 continues to move to the second position until the driving member 2 moves to the position where the lock hole 21 and the limit locking tongue 51 are aligned. At this time, the limit locking tongue 51 moves towards the locked state under the elastic force of the second elastic member 52 until the limit locking tongue 51 is inserted into the lock hole 21, and the driving member 2 is restricted from moving to the first position, so that the driving member 2 is kept in the second position, the door leaf 1 is kept in the open position, and the automatic sliding door is kept in the open state.

[0047] Refer to Figure 4 As shown, after the power is restored, it is necessary to reset the driving member 2 to the first position to connect with the electromagnetic lock. Therefore, the limit structure 5 further includes an unlocking member 54 connected to the limit locking tongue 51. The unlocking member 54 is used for personnel to operate to drive the limit locking tongue 51 to move. Specifically, the unlocking member 54 is connected to the side of the limit locking tongue 51 away from the door leaf 1, and can be specifically an unlocking block or an unlocking rod. Personnel can operate the unlocking member 54 to move the limit locking tongue 51 away from the door leaf 1, so as to disengage from the lock hole 21, so that the driving member 2 can be moved to the first position to connect with the electromagnetic lock, so that the power-off automatic opening mechanism can continue to play the function of automatically opening the movable door when the power is off.

[0048] Refer to Figures 3-4 As shown, to avoid the situation that the automatic sliding door may be damaged when it resumes operation after the power is restored, a sensor 6 is provided at the second position on the main body of the electromechanical beam. The sensor 6 is connected to the door machine control module. When the driving member 2 moves to the second position, the sensor 6 is triggered. When the sensor 6 is triggered, it sends a trigger signal to the door machine control module. After receiving the trigger signal, the door machine control module maintains the shutdown state.

[0049] Specifically, the sensor 6 can adopt an optoelectronic switch, and a trigger member 7 for triggering the optoelectronic switch is correspondingly connected to the driving member 2. Since the driving member 2 is restricted from moving when it is in the second position by the limit locking tongue 51 and the door leaf 1 is restricted from moving, if the automatic sliding door runs at this time, it is easy to be damaged, so the optoelectronic switch is set. After the power is restored, the trigger member 7 is located at the position where the optoelectronic switch is triggered, and the optoelectronic switch sends a trigger signal to the door machine control module, and the door machine control module maintains the shutdown state, so as to avoid damage caused by the operation of the automatic sliding door.

[0050] When actually installing the power-off automatic opening mechanism for the automatic sliding door as described above, it can be installed inside the electromechanical beam housing of the automatic sliding door. To enable the driving member 2 to move stably in the first direction, a guide rail extending in the first direction can be installed on the main body of the electromechanical beam, and the driving member 2 can be installed on the guide rail. The driving member 2 can adopt a locking block and be provided with a plane connected to the electromagnetic lock to improve the connection strength with the electromagnetic lock. During actual installation, the first elastic member 3, the mounting block 53, and the guide rail are respectively configured with appropriate brackets to be installed on the main body of the electromechanical beam. Specifically, those skilled in the art can design the form of the brackets according to the structure of the electromechanical beam main body of the automatic sliding door.

[0051] This embodiment also provides an automatic sliding door including the power-off automatic opening mechanism for the automatic sliding door as shown above.

[0052] It should be noted that the power-off automatic opening mechanism for the automatic sliding door described here is as shown in the above embodiment. For the sake of brevity, it will not be elaborated here.

[0053] The automatic sliding door provided by the present utility model is applicable to various scenarios such as operating rooms and special departments in hospitals, as well as various laboratory scenarios. The present utility model does not limit the applicable scenarios of the automatic sliding door.

[0054] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A power-off automatic opening mechanism for an automatic sliding door, characterized in that: include: A driving member (2) is arranged on an electromechanical beam body of an automatic sliding door, the electromechanical beam body comprising a first position and a second position arranged at intervals along a moving direction of the door leaf (1), the driving member (2) can move between the first position and the second position along a first direction parallel to the moving direction of the door leaf (1), the door leaf (1) can be opened and closed freely when the driving member (2) moves to the first position, and the driving member (2) drives the door leaf (1) to move toward an open door position when it moves from the first position to the second position; a first elastic member (3) connecting the driving member (2) and the electromechanical beam body, wherein the driving member (2) overcomes the elastic force of the first elastic member (3) when moving from the second position to the first position; and An electric locking device (4) is arranged on the electromechanical beam body and is located at the first position. The electric locking device (4) is used to connect with the driving member (2) located at the first position when power is turned on, so that the driving member (2) is maintained in the first position, and is disconnected from the driving member (2) when power is turned off.

2. The power-off automatic opening mechanism for an automatic sliding door according to claim 1, characterized in that: The second position and the first position are distributed sequentially in the direction in which the door leaf (1) moves from the door opening position to the door closing position; the driving member (2) can abut against the door leaf (1) when moving from the first position to the second position, and drive the door leaf (1) to move toward the door opening position when continuing to move toward the first position.

3. The power-off automatic opening mechanism for an automatic sliding door according to claim 2, characterized in that: The projections of the driving member (2) and the door leaf (1) on a plane perpendicular to the first direction intersect, and the door leaf (1) and the driving member (2) are arranged sequentially in the direction in which the door leaf (1) moves from an open position to a closed position.

4. The power-off automatic opening mechanism for an automatic sliding door according to claim 1, characterized in that: The power-off automatic opening mechanism also includes: A limiting structure (5) is arranged on the electromechanical beam body and is located at a second position. The limiting structure (5) is used to connect with the driving member (2) when the driving member (2) moves from the first position to the second position, and to limit the movement of the driving member (2) to the first position. When the driving member (2) is in the second position, the door leaf (1) is limited to move to the closed position.

5. The power-off automatic opening mechanism for an automatic sliding door according to claim 4, characterized in that: The limiting structure (5) comprises: a position-limiting locking tongue (51) which can move in a second direction perpendicular to the first direction, wherein the position-limiting locking tongue (51) can move to a locked state intersecting with a projection of the driving member (2) on a plane perpendicular to the first direction, and can move to an unlocked state not intersecting with a projection of the driving member (2) on a plane perpendicular to the first direction; and A second elastic member (52) connecting the position-limiting lock tongue (51) and the cavity, wherein the position-limiting lock tongue (51) overcomes the elastic force of the second elastic member (52) when moving from a locked state to an unlocked state; The driving member (2) is provided with a lock hole (21) cooperating with the limit lock tongue (51); when the driving member (2) is located at the second position, the lock hole (21) is aligned with the limit lock tongue (51), and is suitable for driving the limit lock tongue (51) to move from a locked state to an unlocked state when the driving member (2) moves from the first position to the second position; and when the driving member (2) moves to the second position, the limit lock tongue (51) moves to the locked state under the elastic force of the second elastic member (52) and is inserted into the lock hole (21).

6. The power-off automatic opening mechanism for an automatic sliding door according to claim 5, characterized in that: The limiting structure (5) also includes: An unlocking member (54) connected to the position-limiting locking tongue (51), wherein the unlocking member (54) is used for being manipulated by a person to drive the position-limiting locking tongue (51) to move.

7. The power-off automatic opening mechanism for an automatic sliding door according to claim 1, characterized in that: The power-off automatic opening mechanism also includes: a sensor (6) arranged on the electromechanical beam body and located at the second position, the sensor (6) being connected to a door machine control module, and triggering the sensor (6) when the driving member (2) moves to the second position; When the sensor (6) is triggered, a trigger signal is sent to the door machine control module, and the door machine control module remains in a stopped state after receiving the trigger signal.

8. The power-off automatic opening mechanism for an automatic sliding door according to claim 1, characterized in that: The electric locking device (4) comprises an electromagnetic lock, and the driving member (2) can be magnetically attracted by the electromagnetic lock.

9. The power-off automatic opening mechanism for an automatic sliding door according to claim 1, characterized in that: The first elastic member (3) comprises a tension spring.

10. An automatic sliding door, characterized in that: The invention comprises a power-off automatic opening mechanism for an automatic sliding door as claimed in any one of claims 1 to 9.