Multi-door linkage emergency unlocking mechanism

Abstract

The utility model discloses a kind of multi-door linkage emergency unlocking mechanism, comprising: base, the base is provided with multiple cabinet locks with emergency switch, and, the base is connected with the linkage plate that can slide up and down, multiple touchers are provided on the linkage plate;Power mechanism, the power mechanism is transmission connection with the linkage plate, drives the linkage plate and toucher to move upwards, until the touch triggers the emergency switch.The utility model can quickly open multiple cabinet doors, and can effectively ensure the automatic reset of emergency switch after opening cabinet door.

Description

Technical Field

[0001] This utility model relates to the field of door lock technology, specifically to a multi-door linkage emergency unlocking mechanism. Background Technology

[0002] Autonomous delivery robots occasionally encounter problems during delivery, such as being blocked halfway, software malfunctions preventing the cabinet door from opening, or power outages preventing the door from opening. These situations require quickly opening the cabinet door to retrieve the items inside. Traditionally, this involved disassembling the maintenance door to locate the emergency switch on the lock. However, disassembling the maintenance door often takes a considerable amount of time, and the compact structure of autonomous delivery robots makes it difficult to dedicate a separate maintenance door for the emergency switch, which also negatively impacts the robot's appearance.

[0003] Currently, some cabinets adopt emergency unlocking structures. For example, an emergency unlocking mechanism for a smart cabinet with application number CN201910844803.8 is provided. Each smart cabinet has an electric lock on its inner wall, and an unlocking linkage rod is provided below each electric lock. An emergency unlocking mechanism for opening the unlocking linkage rod is provided below the unlocking linkage rod. The emergency unlocking mechanism includes a paddle and a mechanical lock. The mechanical lock is connected to the paddle and controls the paddle to move away from the lock linkage rod or to approach and open the lock linkage rod. One end of the paddle is a free end and the other end is a fixed end. When the electric lock is working, the paddle moves away from the lock linkage rod, but in an emergency, the paddle can approach and open the lock linkage rod. Thus, when the smart cabinet door lock fails unexpectedly and cannot be opened, one or more smart cabinets can be opened by the mechanical emergency unlocking device. However, in the technical solutions disclosed in the aforementioned patent applications, one emergency unlocking mechanism corresponds to one smart cabinet. When a cabinet has multiple doors, all emergency unlocking mechanisms need to be opened one by one to open all the doors, which is time-consuming and inefficient. In addition, in the technical solutions disclosed in the aforementioned patent applications, the lever acts on the unlocking linkage rod in an abutting manner, and the lever is relatively short. The gravity on the lever may be less than the friction between the lever and the unlocking linkage rod and the mechanical lock, causing the angle of the lever after it moves the unlocking linkage rod to remain unchanged. The lever cannot automatically disengage from the unlocking linkage rod, resulting in the unlocking linkage rod not being able to automatically reset. The emergency unlocking mechanism remains in the triggered state for a long time, which can easily shorten its service life. Although the mechanical key can be reversed after unlocking to ensure that the lever resets, the operation is cumbersome and affects work efficiency.

[0004] Therefore, it is necessary to develop a multi-door linkage emergency unlocking mechanism to overcome the shortcomings in current practical applications. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a multi-door linkage emergency unlocking mechanism that can quickly open multiple cabinet doors and effectively ensure the automatic reset of the emergency switch after the cabinet door is opened.

[0006] The technical solution of this utility model is implemented as follows: A multi-door linkage emergency unlocking mechanism, comprising: The base is equipped with multiple cabinet locks with emergency switches, and the base is connected to a sliding linkage plate with multiple touch components. A power mechanism is connected to the linkage plate, driving the linkage plate and the contact element to move upward until the contact element triggers the emergency switch.

[0007] In a preferred embodiment, the power mechanism includes a rotary latch and a conversion mechanism. The rotary latch is connected to the linkage plate through the conversion mechanism to convert the rotational force of the rotary latch into a thrust that drives the linkage plate to slide upward.

[0008] In a preferred embodiment, the conversion mechanism includes a thrust shaft, one end of which is connected to the locking tongue of the rotary lock, and the other end of which is fitted with a bearing. Furthermore, a transverse guide rail is provided on the linkage plate, the transverse guide rail is tactilely connected to the bearing, and the linkage plate is slidably connected to the base via a guide mechanism.

[0009] In a preferred embodiment, the transverse guide rail includes a transverse groove, which is disposed on the side of the linkage plate away from the base, and the bottom wall of the transverse groove is provided with a transverse through hole. The thrust shaft is sleeved inside the transverse through hole, and the outer wall of the bearing is in rolling contact with the inner wall of the transverse groove.

[0010] In a preferred embodiment, the guiding mechanism includes at least one longitudinal guide rail, which is disposed on the linkage plate along the length direction of the linkage plate, and at least one guide pin is disposed on the base, which is slidably sleeved with the longitudinal guide rail.

[0011] In a preferred embodiment, a limit cap is provided at the end of the guide pin away from the base.

[0012] In a preferred embodiment, the contact element is an L-shaped strip with one end fixedly connected to the linkage plate and the other end bent and extending horizontally to directly below the emergency switch.

[0013] In a preferred embodiment, at least one boss is provided between the base and the linkage plate. The boss is fixedly connected to the base and slides against the linkage plate. Alternatively, the boss is fixedly connected to the linkage plate and slides against the base.

[0014] In a preferred embodiment, at least one cabinet door rebound device is also included, which is fixedly mounted on the base.

[0015] Compared with the prior art, the present invention has the following advantages: By setting up a linkage plate and multiple contact parts, when the user drives the linkage plate to slide upward through the power mechanism, it can drive each contact part to move upward until each contact part moves to the preset position, triggering the corresponding emergency switch, thereby opening multiple cabinet locks at once and achieving the effect of quickly opening multiple cabinet doors. In addition, since the linkage plate cooperates with the base by sliding up and down, when the cabinet lock is opened, the power mechanism needs to overcome gravity to drive the linkage plate and the contact piece to move upward. When the power mechanism stops providing power, the linkage plate will slide downward under the action of gravity, causing the contact piece to move downward and disengage from the emergency switch. The contact piece will no longer contact the emergency switch, thus effectively ensuring the automatic reset of the emergency switch after the cabinet door is opened, and avoiding the emergency unlocking mechanism from remaining in the triggered state for a long time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view of the present invention; Figure 2 This is the left view of the present invention; Figure 3 This is a front view of the linkage plate of this utility model when it is not installed on the base.

[0018] Reference numerals: Base-1; Cabinet lock-2; Emergency switch-201; Linkage plate-3; Contact element-4; Rotary latch lock-5; Lock tongue-501; Thrust shaft-6; Bearing-7; Horizontal guide rail-8; Horizontal groove-801; Horizontal through hole-802; Vertical guide rail-9; Guide pin-10; Limit cap-11; Boss-12; Cabinet door rebound device-13; Locking latch-14. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-3 This utility model embodiment provides a multi-door linkage emergency unlocking mechanism, including: The base 1 is provided with multiple cabinet locks 2 equipped with emergency switches 201, and the base 1 is connected to a linkage plate 3 that can slide up and down, and the linkage plate 3 is provided with multiple contact elements 4. A power mechanism is connected to the linkage plate 3 to drive the linkage plate 3 and the contact element 4 to move upward until the contact element 4 triggers the emergency switch 201.

[0023] Specifically, the number of cabinet locks 2 and the number of contact pieces 4 are both multiple and equal. When the power mechanism provides power to drive the linkage plate 3 to slide upward, it can drive each contact piece 4 to move upward until each contact piece 4 moves to a preset position, triggering the corresponding emergency switch 201. This allows multiple cabinet locks 2 to be opened at once, achieving the effect of quickly opening multiple cabinet doors. Furthermore, when the cabinet door is opened, the power supply from the power mechanism stops, and the linkage plate 3 will slide downward under the action of gravity, driving the contact pieces 4 to move downward and disengage from the emergency switch 201. The contact pieces 4 no longer contact the emergency switch 201, thus effectively ensuring the automatic reset of the emergency switch 201 after the cabinet door is opened, avoiding the emergency unlocking mechanism from remaining in a triggered state for a long time, and extending the service life of the emergency unlocking mechanism.

[0024] It should be noted that the cabinet lock 2 with emergency switch 201 is an electromagnetic lock. When the cabinet door is closed, the latch 14 installed on the cabinet door can be inserted into the lock hole of the cabinet lock 2 and locked. When the cabinet lock 2 is powered on or the emergency switch 201 is activated, it will automatically unlock and the latch 14 will pop out to open the cabinet door. The specific structure and principle of the electromagnetic lock are existing technologies, such as the electromagnetic cabinet door lock of model XG-07 produced by Guangzhou SARY Electronics Co., Ltd., or the content disclosed in the storage cabinet with emergency unlocking mechanism with application number CN202020143654.0. It will not be elaborated here.

[0025] In this embodiment, the base 1 is a long strip with an L-shaped cross-section; the contact member 4 is an L-shaped strip with one end fixedly connected to the linkage plate 3 and the other end bent and extending horizontally to directly below the emergency switch 201.

[0026] In a preferred embodiment, the power mechanism includes a rotary latch 5 and a conversion mechanism. The rotary latch 5 is connected to the linkage plate 3 through the conversion mechanism to convert the rotational force of the rotary latch 5 into a thrust that drives the linkage plate 3 to slide upward.

[0027] When in use, the user inserts the key into the lock hole of the rotary latch 5 and turns it counterclockwise. Under the conversion of the conversion mechanism, the linkage plate 3 is pushed upward, which in turn drives each contact part 4 to move upward until the emergency switch 201 is activated.

[0028] It should be noted that the counterclockwise rotation here only applies to... Figure 1 and Figure 3 From the perspective shown, in practice it may also be rotated clockwise, so that the linkage plate 3 can be driven to slide upward after rotation.

[0029] In a preferred embodiment, the conversion mechanism includes a thrust shaft 6, one end of which is connected to the locking tongue 501 of the rotary lock 5, and the other end of which is fitted with a bearing 7. Furthermore, a transverse guide rail 8 is provided on the linkage plate 3, the transverse guide rail 8 is tactilely connected to the bearing 7, and the linkage plate 3 is slidably connected to the base 1 through a guide mechanism.

[0030] Specifically, the guide mechanism is used to limit the sliding direction of the linkage plate 3 to ensure that the linkage plate 3 slides vertically up and down. Under the restriction of the guide mechanism, the power generated by the rotation of the locking tongue 501 of the rotary lock 5 is applied to the transverse guide rail 8 through the thrust shaft 6 and the bearing 7 in sequence, thereby pushing the linkage plate 3 to slide upward against gravity.

[0031] In a preferred embodiment, the transverse guide rail 8 includes a transverse groove 801, which is disposed on the side of the linkage plate 3 away from the base 1. The bottom wall of the transverse groove 801 is provided with a transverse through hole 802. The thrust shaft 6 is fitted into the inner side of the transverse through hole 802 with a clearance. The outer wall of the bearing 7 is in rolling contact with the inner wall of the transverse groove 801.

[0032] Specifically, the outer diameter of the thrust shaft 6 is approximately equal to or slightly smaller than the width of the transverse through hole 802, so that the end of the thrust shaft 6 away from the base 1 can pass through the transverse through hole 802 and extend into the transverse groove 801, connecting with the bearing 7 located in the transverse groove 801. Furthermore, the outer diameter of the bearing 7 is greater than the width of the transverse through hole 802, thereby restricting the degree of freedom of the linkage plate 3 in the direction parallel to the axis of the thrust shaft 6, effectively preventing the linkage plate 3 from disengaging from the conversion mechanism. In addition, the power is transmitted by the bearing 7 in a rolling manner, which can effectively reduce the loss caused by contact friction during power transmission.

[0033] It should be noted that in this embodiment, "horizontal" refers to the direction perpendicular to the length of the linkage plate 3, that is, the length directions of the horizontal groove 801 and the horizontal through hole 802 are both perpendicular to the length direction of the linkage plate 3.

[0034] In a preferred embodiment, the guiding mechanism includes at least one longitudinal guide rail 9, which is disposed on the linkage plate 3 along the length direction of the linkage plate 3, and at least one guide pin 10 is disposed on the base 1, which is slidably sleeved with the longitudinal guide rail 9.

[0035] In one embodiment, the structure of the longitudinal guide rail 9 is similar to that of the transverse guide rail 8, including a longitudinal groove and a longitudinal through hole; In another embodiment, the longitudinal guide rail 9 is a longitudinal through hole that passes through both sides of the linkage plate 3.

[0036] It should be noted that in this embodiment, longitudinal refers to the direction parallel to the length direction of the linkage plate 3, that is, the length direction of the longitudinal guide rail 9 is parallel to the length direction of the linkage plate 3.

[0037] In a preferred embodiment, a limit cap 11 is provided at the end of the guide pin 10 away from the base 1. The limit cap 11 has a similar function to the limiting function of the bearing 7, which can further restrict the degree of freedom of the linkage plate 3 in the direction of the parallel thrust shaft 6 axis, thereby effectively preventing the linkage plate 3 from disengaging from the conversion mechanism.

[0038] In one alternative embodiment, the base 1 is slidably engaged with the longitudinal guide rail 9 by bolts, that is, the guide pin 10 is equivalent to the shank portion of the bolt, and the limiting cap 11 is equivalent to the bolt head portion of the bolt.

[0039] In a preferred embodiment, at least one boss 12 is provided between the base 1 and the linkage plate 3. The boss 12 is fixedly connected to the base 1 and slides against the linkage plate 3. Alternatively, the boss 12 is fixedly connected to the linkage plate 3 and slides against the base 1, thereby separating the base 1 and the linkage plate 3 to form a space for installing components such as the cabinet lock 2 and the power mechanism.

[0040] In this embodiment, there are multiple bosses 12. The end of each thrust shaft 6 near the base 1 is fixedly connected to the boss 12, and the side of the boss 12 facing away from the base 1 slides against the bottom surface of the longitudinal guide rail 9.

[0041] This utility model embodiment also includes at least one cabinet door rebounder 13, which is fixedly mounted on the base 1.

[0042] In this embodiment, there are multiple cabinet door rebounders 13. Each cabinet door rebounder 13 is paired with a cabinet lock 2, and each pair corresponds to a cabinet door. When the latch 14 is not locked by the cabinet lock 2 and the cabinet door is not opened, the cabinet door can be pressed and the cabinet door rebounder 13 can be used to open the cabinet door, thus replacing the function of the handle.

[0043] Working principle of this utility model embodiment: In use, insert the key into the lock hole of the rotary lock 5 and turn it counterclockwise. The lock tongue 501 of the rotary lock 5 rotates, driving the thrust shaft 6 and bearing 7 to rotate. The bearing 7 rolls relative to the transverse groove 801, pushing the linkage plate 3 upward through the transverse guide rail 8, which in turn drives each contact 4 to move upward until each contact 4 triggers the corresponding emergency switch 201. This allows multiple cabinet locks 2 to be opened at once and multiple cabinet doors to pop open. After the cabinet door is opened, release the key. The linkage plate 3 slides downward under the action of gravity, driving the contact 4 downward and disengaging from the emergency switch 201 until the guide pin 10 abuts against the upper inner wall of the longitudinal guide rail 9. At this time, the contact 4 separates from the emergency switch 201, thus effectively ensuring that the emergency switch 201 automatically resets after the cabinet door is opened, avoiding the emergency unlocking mechanism from remaining in the triggered state for a long time and extending the service life of the emergency unlocking mechanism.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-door linkage emergency unlocking mechanism, characterized in that, include: The base (1) is provided with multiple cabinet locks (2) with emergency switches (201), and the base (1) is connected to a linkage plate (3) that can slide up and down, and the linkage plate (3) is provided with multiple touch pieces (4). The power mechanism is connected to the linkage plate (3) and drives the linkage plate (3) and the contact element (4) to move upward until the contact element (4) triggers the emergency switch (201).

2. The multi-door linkage emergency unlocking mechanism according to claim 1, characterized in that: The power mechanism includes a rotary tongue lock (5) and a conversion mechanism. The rotary tongue lock (5) is connected to the linkage plate (3) through the conversion mechanism to convert the rotational force of the rotary tongue lock (5) into a thrust that drives the linkage plate (3) to slide upward.

3. The multi-door linkage emergency unlocking mechanism according to claim 2, characterized in that: The conversion mechanism includes a thrust shaft (6), one end of which is connected to the locking tongue (501) of the rotary tongue lock (5), and the other end of the thrust shaft (6) is fitted with a bearing (7). Furthermore, a transverse guide rail (8) is provided on the linkage plate (3), the transverse guide rail (8) is tumbledly connected to the bearing (7), and the linkage plate (3) is slidably connected to the base (1) through a guide mechanism.

4. The multi-door linkage emergency unlocking mechanism according to claim 3, characterized in that: The transverse guide rail (8) includes a transverse groove (801), which is located on the side of the linkage plate (3) away from the base (1). The bottom wall of the transverse groove (801) is provided with a transverse through hole (802). The thrust shaft (6) is fitted inside the transverse through hole (802) with a gap. The outer wall of the bearing (7) is in rolling contact with the inner wall of the transverse groove (801).

5. The multi-door linkage emergency unlocking mechanism according to claim 3, characterized in that: The guiding mechanism includes at least one longitudinal guide rail (9), which is arranged on the linkage plate (3) along the length direction of the linkage plate (3), and at least one guide pin (10) is provided on the base (1), which is slidably sleeved with the longitudinal guide rail (9).

6. The multi-door linkage emergency unlocking mechanism according to claim 5, characterized in that: A limit cap (11) is provided at the end of the guide pin (10) away from the base (1).

7. A multi-door linkage emergency unlocking mechanism according to any one of claims 1 to 5, characterized in that: The contact element (4) is an L-shaped strip with one end fixedly connected to the linkage plate (3) and the other end bent and horizontally extended to the underside of the emergency switch (201).

8. A multi-door linkage emergency unlocking mechanism according to any one of claims 1 to 5, characterized in that: At least one boss (12) is provided between the base (1) and the linkage plate (3). The boss (12) is fixedly connected to the base (1) and slides against the linkage plate (3). Alternatively, the boss (12) is fixedly connected to the linkage plate (3) and slides against the base (1).

9. A multi-door linkage emergency unlocking mechanism according to any one of claims 1 to 5, characterized in that: It also includes at least one cabinet door rebounder (13), which is fixedly mounted on the base (1).

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