Hall-out door anti-falling system and hall-out door anti-falling method

Abstract

The application discloses a hall-out-door opening anti-falling system and a hall-out-door opening anti-falling method. The inductive device for sensing the position of a car is arranged in a shaft. The lock head assembly of a hall layer is electrically connected with the inductive device in the shaft. The electronic key assembly is matched with the lock head assembly to be unlocked. The electronic key assembly and the lock head assembly are electrically conducted after being contacted. The power module in the electronic key assembly is used to power the inductive device. The inductive device feeds back the signal of whether the position of the car is sensed to the electronic key assembly. The reminding module in the electronic key assembly sends a reminding signal after the electronic key assembly responds to the signal of whether the position of the car is sensed. The maintenance personnel can intuitively know whether the car is located in the safety position range of the corresponding hall layer in the shaft, so that the risk of falling into the shaft of the maintenance personnel is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a system and method for preventing falling when a door is opened outside a hall. Background Art

[0002] When an elevator breaks down or requires maintenance, maintenance personnel often need to use a triangular key to open the elevator hall door. If the maintenance personnel are negligent when opening the hall door and fail to notice that the car is not within a safe range, they may easily fall into the shaft when entering through the hall door. Therefore, smart keys (electronic keys) have emerged, such as the prior art CN208088999U. The existing smart keys have a power module, an alarm module, a trigger module, etc. When the smart key contacts the triangular lock on the hall floor to unlock, the smart key can send a warning signal, such as a loudspeaker emitting an alarm voice saying "the hall door will open, please pay attention to safety." However, although the existing smart keys have reminder and alarm functions, such alarm functions cannot determine whether the car is within the safe position range of the level floor, and maintenance personnel still face a high risk of falling into the shaft after opening the hall door. Summary of the Invention

[0003] In view of this, the present invention proposes, on the one hand, a system for preventing falling when opening the door outside the hall, and on the other hand, a method for preventing falling when opening the door outside the hall, the purpose of which is to reduce the risk of maintenance personnel falling into the shaft after opening the hall door.

[0004] The technical solution of one aspect of the present invention is achieved as follows:

[0005] An anti-falling system for opening the door outside the hall, comprising:

[0006] A sensing device is provided in the hoistway and is used to sense the position of the car and send a signal indicating whether the position of the car is sensed;

[0007] A lock assembly is provided on the hall floor, the lock assembly is electrically connected to the sensing device via a connecting line, and the lock assembly includes a lock portion, and the lock portion is provided with a first contact structure;

[0008] An electronic key assembly includes an unlocking portion that matches the lock portion to unlock the lock portion, and a second contact structure is provided on the unlocking portion. The electronic key assembly also includes a power module, a reminder module and a control module; the power module is electrically connected to the second contact structure and the reminder module respectively, and the first contact structure forms an electrical connection when in contact with the second contact structure. The control module receives a position signal emitted by the sensing device and controls the reminder module to emit a reminder signal based on the position signal.

[0009] Optionally, the sensing device is a sensor, and the sensor is arranged at the sill corbel position of the hall door.

[0010] Optionally, the position signal emitted by the sensing device is a high or low level signal.

[0011] Optionally, the reminder module is a speaker and / or a warning light, and the reminder signal emitted by the reminder module is a sound signal and / or a light signal.

[0012] Optionally, the lock assembly includes a triangular lock body, the lock head is a triangular structure, the triangular lock body is arranged on the wall of the hall floor, one end of the triangular lock body is exposed in the hall floor, and the other end is exposed in the shaft, and a hollow channel for wiring is provided in the triangular lock body, and a first PCB board is provided at one end of the hollow channel, the first PCB board is provided on the end face of the lock head, and the first contact structure is provided on the first PCB board; the unlocking part on the electronic key assembly is a triangular hole for inserting the lock head, and the second contact structure is provided on the end face of the unlocking part.

[0013] Optionally, a second PCB board is provided at the other end of the hollow channel, and a wire connecting the first PCB board and the second PCB board is provided in the hollow channel; and a pin structure electrically connected to the connecting wire is provided on the second PCB board.

[0014] Optionally, the first contact structure includes an annular positive contact and an annular negative contact, the positive contact and the negative contact are coaxially arranged, and the positive contact, the negative contact and the lock head are coaxially arranged; the second contact structure is the same as the first contact structure.

[0015] Optionally, the triangular lock body is made of metal, and the triangular lock body serves as a grounding end.

[0016] Optionally, the first PCB board is adhered to the hollow channel, a card block is convexly provided on the inner wall of the hollow channel, and a card slot for the card block to be inserted is concavely provided on the outer periphery of the first PCB board.

[0017] Compared with the existing technology, the anti-falling system for opening the door outside the hall can sense whether the car is located in the safe position range of the corresponding hall floor in the shaft through the sensing device. The sensing device can feed back the position signal to the electronic key component, and the electronic key component sends a reminder signal to remind the maintenance personnel, so that the maintenance personnel can intuitively know whether the car is located in the safe position range of the corresponding hall floor in the shaft, thereby reducing the risk of maintenance personnel falling into the shaft; the sensing device is powered by the power module built into the electronic key component. When the elevator is in a power outage, the anti-falling system for opening the door outside the hall can also be used normally.

[0018] The technical solution of another aspect of the present invention is achieved as follows:

[0019] A method for preventing falling when opening a door outside a hall, comprising the following steps:

[0020] A sensing device for sensing the position of the car is provided in the hoistway;

[0021] Electrically connect the lock assembly on the hall level to the sensing device in the hoistway;

[0022] The electronic key assembly is matched with the lock assembly to unlock the lock, and the electronic key assembly and the lock assembly are electrically connected after contact, and the sensing device is powered by the power module in the electronic key assembly;

[0023] After being powered on, the sensing device feeds back a signal of whether it has sensed the position of the car to the electronic key assembly;

[0024] After the electronic key assembly responds to the position signal of the car being sensed, the reminder module in the electronic key assembly sends a reminder signal.

[0025] Compared with the existing technology, the anti-falling method for opening the door outside the hall can sense whether the car is located in the safe position range of the corresponding hall floor in the shaft through the sensing device. The sensing device can feed back the position signal to the electronic key component, and the electronic key component sends a reminder signal to remind the maintenance personnel, so that the maintenance personnel can intuitively know whether the car is located in the safe position range of the corresponding hall floor in the shaft, thereby reducing the risk of maintenance personnel falling into the shaft; the sensing device is powered by the built-in power module of the electronic key component. When the elevator is in a power outage, the anti-falling system for opening the door outside the hall can also be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is one of the application schematic diagrams of the outdoor door opening anti-falling system of the present invention;

[0028] Figure 2 This is the second application diagram of the door opening anti-falling system outside the hall of the present invention;

[0029] Figure 3 This is the third application diagram of the anti-falling system for opening the door outside the hall of the present invention;

[0030] Figure 4 This is one of the structural diagrams of the lock assembly;

[0031] Figure 5 This is the second structural diagram of the lock assembly;

[0032] Figure 6 is a cross-sectional schematic diagram of the lock assembly;

[0033] Figure 7 is a schematic diagram of the first contact structure.

[0034] In the figure: 100, car; 110, toeboard; 200, hall door sill corbel;

[0035] 1. Sensing device;

[0036] 2. Lock assembly; 21. Triangular lock body; 211. Hollow channel; 212. Clamping block; 22. Lock head; 23. First PCB board; 24. Second PCB board; 241. Pin structure; 25. First contact structure; 251. Positive contact; 252. Negative contact;

[0037] 3. Electronic key assembly;

[0038] 4. Connecting wire. DETAILED DESCRIPTION

[0039] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as a limitation on the present invention.

[0041] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] refer to Figure 1-7 , shows a system for preventing falling when opening the door outside the hall, including a sensing device 1, a lock assembly 2 and an electronic key assembly 3;

[0044] The sensing device 1 is disposed in the shaft and is used to sense the position of the car 100 and to send a position signal indicating whether the car 100 is sensed. Specifically, the position signal sent by the sensing device 1 can indicate whether the car 100 is sensed or not. It does not accurately detect the actual height position of the car 100. Therefore, the structure is simple and easy to implement.

[0045] The lock assembly 2 is arranged on the hall floor and is electrically connected to the sensing device 1 via a connecting line 4. The lock assembly 2 includes a lock portion 22 on which a first contact structure 25 is provided.

[0046] The electronic key assembly 3 includes an unlocking part that matches the lock part 22 to unlock, and a second contact structure is provided on the unlocking part. The electronic key assembly 3 also includes a power module, a reminder module and a control module; the power module is electrically connected to the second contact structure and the reminder module respectively, and the first contact structure 25 forms an electrical connection when it contacts the second contact structure. The control module receives the position signal emitted by the sensing device 1 and controls the reminder module to emit a reminder signal according to the position signal.

[0047] Specifically, the unlocking portion on the electronic key assembly 3 can cooperate with the lock portion 22 of the lock assembly 2 to achieve mechanical unlocking, which is the same as the prior art. However, on this basis, the present invention provides a first contact structure 25 on the lock portion 22 and a second contact structure on the unlocking portion. When the first contact structure 25 contacts the second contact structure, an electrical connection is formed. That is, when the electronic key assembly 3 is inserted into the lock assembly 2 for unlocking, the power module on the electronic key assembly 3 can power the sensing device 1 through the lock assembly 2. The sensing device 1 performs sensing work and can feed back a position signal to the electronic key assembly 3. The electronic key assembly 3 sends a reminder signal to remind the maintenance personnel, so that the maintenance personnel can intuitively know whether the car 100 is located in the safe position range of the corresponding hall floor in the hoistway, thereby reducing the risk of the maintenance personnel falling into the hoistway. The sensing device 1 is powered by the built-in power module of the electronic key assembly 3. When the elevator is in a power outage, the anti-fall system for opening the door outside the hall can also be used normally.

[0048] In some specific embodiments, the sensing device 1 is a sensor, which is disposed at the location of the hall door sill corbel 200. The sensor may be, for example, an infrared sensor, a photoelectric sensor, or the like. The position signal emitted by the sensing device 1 is a high or low level signal. For example, when an infrared sensor is used, the infrared sensor senses whether there is an obstruction ahead and outputs a high or low level signal to the electronic key assembly 3. The reminder module on the electronic key assembly 3 then emits a reminder signal to alert staff. Specifically, the reminder module is a speaker and / or a warning light. The reminder signal emitted by the reminder module is an audible signal and / or a light signal. For example, the reminder module may directly emit a voice alarm such as "Car 100 is not within a safe position range" or "Car 100 is within a safe position range," or may emit a red light to indicate "Car 100 is not within a safe position range" or a green light to indicate "Car 100 is within a safe position range."

[0049] To understand how the present invention reduces the risk of maintenance personnel falling into the shaft, please refer to Figures 1 to 3 ;

[0050] Figure 1The figure shows one of the situations of the position of the car 100. In this case, the car 100 does not correspond to the position of the hall floor. The car 100 is located below the corresponding floor height of the hall floor. The sensing device 1 can sense the car 100, and the electronic key assembly 3 issues a reminder that "the car 100 is in a safe position range". In this situation, although the car 100 does not correspond to the position of the hall floor, the car 100 is in a lower position. Even if the maintenance personnel open the door and pass through the hall door, they will stand on top of the car 100 and will not fall into the hoistway. Therefore, the car 100 is in a safe position range.

[0051] Figure 2 The figure shows one of the positions of the car 100. In this case, the car 100 corresponds to the position of the hall floor, and the position of the toeboard 110 on the car 100 corresponds to the position of the hall door sill corbel 200. The sensing device 1 senses the toeboard 110, and the electronic key assembly 3 issues a reminder that "the car 100 is in a safe position range."

[0052] Figure 3 One of the situations of the position of the car 100 is shown. At this time, the position of the car 100 and the hall floor do not correspond. The car 100 is located above the corresponding floor height of the hall floor. The sensing device 1 cannot sense the car 100, and the electronic key component 3 issues a reminder that "the car 100 is not in a safe position range". In this case, there is a certain distance between the toe guard 110 on the car 100 and the hall door sill, and there is a risk of maintenance personnel falling into the shaft. The reminder issued by the electronic key component 3 increases the attention of the maintenance personnel, thereby reducing the risk of maintenance personnel falling into the shaft.

[0053] In some specific embodiments, reference Figure 4-7 The lock assembly 2 includes a triangular lock body 21, and the lock head 22 is a triangular structure. The triangular lock body 21 is arranged on the wall of the hall floor, one end of the triangular lock body 21 is exposed in the hall floor, and the other end is exposed in the well. A hollow channel 211 for wiring is provided in the triangular lock body 21, and a first PCB board 23 is provided at one end of the hollow channel 211. The first PCB board 23 is provided on the end surface of the lock head 22, and the first contact structure 25 is provided on the first PCB board 23; the unlocking part on the electronic key assembly 3 is a triangular hole for inserting the lock head 22, and the second contact structure is provided on the end surface of the unlocking part.

[0054] Specifically, the lock head portion 22 on the lock head assembly 2 is the same as the conventional lock head structure, both of which are triangular structures (a common structure in the current elevator industry), and the unlocking portion on the electronic key assembly 3 is a triangular hole that matches the lock head portion 22 (a common structure in the current elevator industry). In this way, a conventional triangular key can also be mechanically matched with the lock head assembly 2 of the present invention to achieve mechanical unlocking. The lock head assembly 2 of the present invention is universal, ensuring that all triangular keys can be used to unlock and achieve rescue, repair and maintenance.

[0055] In some specific embodiments, to facilitate installation, a second PCB board 24 is provided at the other end of the hollow channel 211, and wires connecting the first PCB board 23 and the second PCB board 24 are provided in the hollow channel 211; a pin structure 241 electrically connected to the connecting wire 4 is provided on the second PCB board 24.

[0056] In some specific embodiments, reference Figure 7 The first contact structure 25 includes an annular positive contact 251 and an annular negative contact 252. The positive contact 251 and the negative contact 252 are coaxially arranged, and the positive contact 251 and the negative contact 252 are coaxially arranged with the lock head 22. The second contact structure is the same as the first contact structure 25. In this way, it is ensured that the electronic key assembly 3 is electrically conductive to the lock assembly 2 at any angle from which it is inserted; it should be noted that the present invention does not show the specific structural drawings of the electronic key assembly 3. The specific structure of the electronic key assembly 3 can refer to the prior art CN208088999U (for example, the setting of the power module and the setting of the reminder module). The biggest difference between the electronic key assembly 3 of the present invention and the prior art is that the electronic key assembly 3 of the present invention is provided with the second contact structure in the unlocking part (triangular hole). The second contact structure is used to contact the first contact structure 25 on the lock assembly 2 to achieve electrical conduction. The second contact structure can refer to the first contact structure 25. After the introduction of the first contact structure 25, those skilled in the art should be clear about how the second contact structure is set.

[0057] In addition, the triangular lock body 21 is made of metal and serves as a grounding terminal to improve electrical conductivity safety.

[0058] In the above solution, in order to prevent the first PCB board 23 from rotating due to friction when the electronic key assembly 3 rotates the lock assembly 2, refer to Figure 7The first PCB board 23 is fixed to the hollow channel 211. A locking block 212 is protruding from the inner wall of the hollow channel 211, and a slot for the locking block 212 to be engaged is recessed on the outer periphery of the first PCB board 23. In this way, the first PCB board 23 and the locking head 22 are relatively fixed in the circumferential direction.

[0059] In general, the present invention also provides a method for preventing falling when opening the door outside the hall, comprising the following steps:

[0060] A sensing device 1 for sensing the position of the car 100 is provided in the hoistway;

[0061] Electrically connect the lock assembly 2 on the hall level to the sensing device 1 in the hoistway;

[0062] The electronic key assembly 3 is matched with the lock assembly 2 to unlock the lock. After the electronic key assembly 3 and the lock assembly 2 are in contact, electrical conduction is achieved, and the power module in the electronic key assembly 3 is used to energize the sensing device 1;

[0063] After being powered on, the sensing device 1 feeds back a position signal of the car 100 to the electronic key assembly 3 ;

[0064] After the electronic key assembly 3 responds to the position signal of the car 100 , the reminder module in the electronic key assembly 3 sends a reminder signal.

[0065] It is worth mentioning that the system and method for preventing falling when opening the door outside the hall of the present invention have simple structures and steps, practical functions, high feasibility and low implementation costs.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A door opening anti-falling system outside the hall, characterized in that: include: A sensing device is provided in the hoistway for sensing the position of the car and sending a signal indicating whether the position of the car has been sensed; A lock assembly is provided on the hall floor, the lock assembly is electrically connected to the sensing device via a connecting line, and the lock assembly includes a lock portion, and the lock portion is provided with a first contact structure; An electronic key assembly, the electronic key assembly including an unlocking portion that mates with the lock portion to unlock the lock, the unlocking portion being provided with a second contact structure, the electronic key assembly further comprising a power module, a reminder module, and a control module; the power module being electrically connected to the second contact structure and the reminder module, respectively; the first contact structure forming an electrical connection with the second contact structure when in contact; the control module receiving a position signal from the sensing device and controlling the reminder module to issue a reminder signal based on the position signal; Wherein, the power module on the electronic key assembly can supply power to the sensing device through the lock assembly.

2. The anti-falling system for opening the door outside the hall according to claim 1 is characterized in that: The induction device is a sensor, and the sensor is arranged at the position of the hall door sill corbel.

3. The anti-falling system for opening the door outside the hall according to claim 2 is characterized in that: The position signals sent by the sensing device are high and low level signals.

4. The anti-falling system for opening the door outside the hall according to claim 3 is characterized in that: The reminder module is a speaker and / or a warning light, and the reminder signal sent by the reminder module is a sound signal and / or a light signal.

5. The anti-falling system for opening the door outside the hall according to any one of claims 1 to 4, characterized in that: The lock assembly includes a triangular lock body, the lock head portion is a triangular structure, the triangular lock body is arranged on the wall of the hall floor, one end of the triangular lock body is exposed in the hall floor, and the other end is exposed in the well. A hollow channel for wiring is provided in the triangular lock body, and a first PCB board is provided at one end of the hollow channel. The first PCB board is provided on the end surface of the lock head portion, and the first contact structure is provided on the first PCB board; the unlocking portion on the electronic key assembly is a triangular hole for inserting the lock head portion, and the second contact structure is provided on the end surface of the unlocking portion.

6. The anti-falling system for opening the door outside the hall according to claim 5 is characterized in that: A second PCB board is provided at the other end of the hollow channel, and a wire connecting the first PCB board and the second PCB board is provided in the hollow channel; a pin structure electrically connected to the connecting wire is provided on the second PCB board.

7. The anti-falling system for opening the door outside the hall according to claim 5 is characterized in that: The first contact structure includes an annular positive contact and an annular negative contact, the positive contact and the negative contact are coaxially sleeved, and the positive contact, the negative contact and the lock head are coaxially arranged; the second contact structure is the same as the first contact structure.

8. The anti-falling system for opening the door outside the hall according to claim 7 is characterized in that: The triangular lock body is made of metal and serves as a grounding end.

9. The anti-falling system for opening the door outside the hall according to claim 7, characterized in that: The first PCB is fixed to the hollow channel. A clamping block is convexly provided on the inner wall of the hollow channel. A clamping slot for the clamping block to be inserted into is concavely provided on the outer periphery of the first PCB.

10. A method for preventing falling when opening the door outside the hall, characterized in that: The method utilizes the hall door opening anti-falling system according to any one of claims 1 to 9, comprising the following steps: A sensing device for sensing the position of the car is provided in the hoistway; Electrically connect the lock assembly on the hall level to the sensing device in the hoistway; The electronic key assembly is matched with the lock assembly to unlock the lock, and the electronic key assembly and the lock assembly are electrically connected after contact, and the sensing device is powered by the power module in the electronic key assembly; After being powered on, the sensing device feeds back a signal of whether it has sensed the position of the car to the electronic key assembly; After the electronic key assembly responds to the position signal of the car being sensed, the reminder module in the electronic key assembly sends a reminder signal.

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