Out-of-hall door opening anti-falling system and out-of-hall door opening anti-falling method

Abstract

The invention discloses an out-of-hall door opening anti-falling system and an out-of-hall door opening anti-falling method. A sensing device used for sensing the position of a lift car is arranged in a hoistway; a lock head assembly of the hall layer is electrically connected with an induction device in the hoistway; an electronic key assembly and the lock head assembly are matched for unlocking, the electronic key assembly and the lock head assembly are electrically conducted after making contact, and the induction device is powered on through a power module in the electronic key assembly; the electrified sensing device feeds back a signal indicating whether the position of the lift car is sensed or not to the electronic key assembly; after the electronic key assembly responds to whether the position signal of the lift car is sensed or not, a reminding module in the electronic key assembly sends out a reminding signal; a maintainer can visually know whether the lift car is located in the safe position range of the corresponding hall layer in the hoistway or not, and therefore the risk that the maintainer falls into the hoistway is reduced.

Description

Technical Field

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

[0002] When an elevator breaks down or needs maintenance, elevator maintenance personnel often need to use a triangular key to open the elevator hall door. If the elevator maintenance personnel are negligent when opening the hall door and fail to notice that the car is not in a safe range, it is easy to 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 sending an alarm voice of "the hall door will open, please pay attention to safety"; however, although the existing smart keys have reminder and alarm functions, this alarm function cannot determine whether the car is in the safe position range of the level floor, and the maintenance personnel still have a greater 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, the sensing device is arranged in the hoistway, and is used to sense the position of the car and send a signal whether the position of the car is sensed;

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

[0008] An electronic key assembly, the electronic key assembly includes an unlocking part that matches the lock part to unlock, the unlocking part is provided with a second contact structure, 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, the first contact structure forms an electrical connection with the second contact structure when in contact, the control module receives the position signal emitted by the sensing device, and controls the reminder module to emit a reminder signal according to the position signal.

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

[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 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 shaft, a hollow channel for wiring is provided in the triangular lock body, 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 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 face of the unlocking portion.

[0013] Optionally, a second PCB board is provided at the other end of the hollow channel, and an electric 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 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.

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

[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 prior art, 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 layer in the hoistway through the sensing device, and 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 layer in the hoistway, thereby reducing the risk of maintenance personnel falling into the hoistway; 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.

[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 comprises 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 used to match and unlock the lock, and the electronic key assembly and the lock assembly are electrically connected after contact, and the induction 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 the position of the car is sensed to the electronic key assembly;

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

[0025] Compared with the prior art, the method for preventing falling by opening the door outside the hall can sense whether the car is located in the safe position range of the corresponding hall layer in the hoistway through the sensing device, and 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 layer in the hoistway, thereby reducing the risk of maintenance personnel falling into the hoistway; 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 system for preventing falling by 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

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

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

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

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

[0031] Figure 5 This is the second structural schematic 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, footboard; 200, hall door sill corbel;

[0035] 1. Sensing device;

[0036] 2. Lock assembly; 21. Triangular lock body; 211. Hollow channel; 212. 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 technical solutions in the embodiments of the present invention are described clearly and completely below. 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 creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships 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 clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and 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. Moreover, a first feature being "above", "above" or "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 higher in level than the second feature. A first feature being "below", "below" or "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 lower in 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 arranged in the hoistway, and is used to sense the position of the car 100 and send out a position signal indicating whether the car 100 is sensed; specifically, the position signal sent out by the sensing device 1 can indicate whether the car 100 is sensed or not, and does not accurately detect the actual height position of the car 100, so the structure is simple and easy to implement;

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

[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 with the second contact structure when in contact. 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 part on the electronic key assembly 3 can cooperate with the lock part 22 of the lock assembly 2 to achieve mechanical unlocking, and this function is the same as the prior art; however, on this basis, the present invention provides a first contact structure 25 on the lock part 22, and a second contact structure on the unlocking part, and an electrical connection is formed when the first contact structure 25 contacts the second contact structure, that is, in the process of inserting the electronic key assembly 3 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, and the sensing device 1 performs sensing work, and the sensing device 1 can feed back the position signal to the electronic key assembly 3, and 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 layer 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, and when the elevator is in a power outage, the anti-falling 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, and the sensor is arranged at the position of the hall door sill bracket 200. The sensor can be, for example, an infrared sensor, a photoelectric sensor, etc., and 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 in front, thereby outputting a high level signal or a low level signal to the electronic key component 3, and the reminder module on the electronic key component 3 emits a reminder signal to remind the staff; specifically, the reminder module is a speaker and / or a prompt light, and the reminder signal emitted by the reminder module is a sound signal and / or a light signal, for example, a voice alarm such as "the car 100 is not in the safe position range" or "the car 100 is in the safe position range" can be directly emitted, or a red light can be emitted to represent "the car 100 is not in the safe position range" and a green light can be emitted to represent "the car 100 is in the safe position range".

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

[0050] Figure 1One of the situations of the position of the car 100 is shown. At this time, the position of the car 100 does not correspond to the position of the hall layer. The car 100 is located below the corresponding floor height of the hall layer. The sensing device 1 can sense the car 100, and the electronic key component 3 issues a reminder that "the car 100 is in a safe position range". In this case, although the position of the car 100 does not correspond to the position of the hall layer, 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 the top of the car 100 and will not fall into the shaft. Therefore, the car 100 is in a safe position range;

[0051] Figure 2 One of the situations of the position of the car 100 is shown. At this time, the car 100 corresponds to the position of the hall layer, the position of the footboard 110 on the car 100 corresponds to the position of the hall door sill bracket 200, the sensing device 1 senses the footboard 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 does not correspond to the hall layer. The car 100 is located above the corresponding floor height of the hall layer. 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 the safe position range". In this case, there is a certain distance between the foot guard 110 on the car 100 and the sill of the hall door, 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, the lock head 22 is a triangular structure, the triangular lock body 21 is arranged on the wall of the hall layer, one end of the triangular lock body 21 is exposed in the hall layer, and the other end is exposed in the shaft, a hollow channel 211 for wiring is provided in the triangular lock body 21, a first PCB board 23 is provided at one end of the hollow channel 211, the first PCB board 23 is arranged on the end surface of the lock head 22, and the first contact structure 25 is arranged on the first PCB board 23; the unlocking part on the electronic key assembly 3 is a triangular hole for the lock head 22 to be inserted, and the second contact structure is arranged 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 the lock to 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 inserted into the lock assembly 2 at any angle to ensure electrical conduction between the two. It should be noted that the specific structural drawings of the electronic key assembly 3 are not shown in the present invention. The specific structure of the electronic key assembly 3 can refer to the prior art CN208088999U (for example, the setting of the power module, 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 the triangular lock body 21 serves as a grounding terminal to improve the safety of electrical conduction.

[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 block 212 is convexly provided on the inner wall of the hollow channel 211, and a slot for the block 212 to be inserted is concavely provided 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 shows 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 sensor device 1 in the hoistway;

[0062] The electronic key assembly 3 is used to match and unlock the lock head assembly 2. After the electronic key assembly 3 and the lock head assembly 2 are in contact, electrical conduction is achieved, and the sensing device 1 is powered by the power module in the electronic key assembly 3.

[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 being sensed, the reminder module in the electronic key assembly 3 sends a reminder signal.

[0065] It is worth mentioning that the system for preventing falling with the door opened outside the hall and the method for preventing falling with the door opened outside the hall of the present invention have simple structures, simple 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 protection scope of the present invention.

Claims

1. A door opening anti-falling system outside the hall, characterized in that: include: A sensing device, the sensing device is arranged in the hoistway, and is used to sense the position of the car and send a signal whether the position of the car is sensed; A lock assembly, wherein the lock assembly is arranged on the hall floor, and the lock assembly is electrically connected to the sensing device through a connecting line. The lock assembly includes a lock portion, and a first contact structure is provided on the lock portion; an electronic key assembly, wherein the electronic key assembly includes an unlocking portion that matches the lock portion to unlock, 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 with the second contact structure when in contact, and the control module receives a position signal emitted by the sensing device, and controls the reminder module to emit a reminder signal according to the position signal.

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

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

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 is a triangular structure, the triangular lock body is arranged on the wall of the hall layer, one end of the triangular lock body is exposed in the hall layer, and the other end is exposed in the shaft, a hollow channel for wiring is provided in the triangular lock body, 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, 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 the lock head to be inserted, and the second contact structure is provided on the end surface of the unlocking part.

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 disposed at the other end of the hollow channel, and a wire connecting the first PCB board and the second PCB board is disposed in the hollow channel; a pin structure electrically connected to the connecting wire is disposed 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 door opening outside the hall according to claim 7, characterized in that: 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.

10. A method for preventing falling when opening the door outside the hall, characterized in that: The steps include: 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 used to match and unlock the lock, and the electronic key assembly and the lock assembly are electrically connected after contact, and the induction 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 the position of the car is sensed to the electronic key component; after the electronic key component responds to the signal of whether the position of the car is sensed, the reminder module in the electronic key component sends a reminder signal.

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