Elevator car position detection system

Abstract

The utility model discloses an elevator car position detection system which comprises a first identification unit, a second identification unit, a first detection piece and a second detection piece. The first recognition unit and the second recognition unit are arranged on the upper portion and the lower portion of the lift car body respectively. The first detection piece and the second detection piece are arranged at the positions, corresponding to all floors, in a hoistway, a first detection area is formed on the first detection piece, a second detection area is formed on the second detection piece, and the first detection area and the second detection area are arranged in parallel in the lifting direction of the lift car body. The elevator car position detection system can confirm whether the car body is located in a safe area or not, so that maintenance personnel can have a certain understanding of the position of the car body before opening an elevator hall door, and then the accident risk that the maintenance personnel fall into a hoistway is reduced.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, and in particular to an elevator car position detection system. Background Technology

[0002] Elevator maintenance personnel frequently need to use a triangular key to open elevator hall doors. For example: First, when an elevator malfunctions and cannot automatically open to release trapped passengers, maintenance personnel need to open the hall door from the outside to enter the car for rescue. In this situation, to ensure safety, the elevator car should remain on the floor where the maintenance personnel are located (i.e., the current floor). Second, during routine maintenance, maintenance personnel need to open the hall door to enter the elevator car top for maintenance work. The elevator car should be located on the floor below the maintenance personnel's floor, with the car top directly facing the operator's floor.

[0003] Under normal operating conditions, the elevator's current floor can be displayed on the digital screen of the call box outside the hall. However, in abnormal situations, such as power outages, elevator slippage, or during rescue operations, the elevator system may fail to effectively detect and accurately display its current position. If maintenance personnel carelessly open the elevator hall door and fail to confirm whether the elevator is on the current or next floor, they are prone to losing their balance and falling into the shaft. These safety hazards pose a serious threat to the lives of maintenance personnel. Utility Model Content

[0004] In view of this, this utility model proposes an elevator car position detection system, which aims to solve the problem that maintenance personnel are prone to falling into the shaft due to abnormal elevator car position.

[0005] The solution provided by this utility model includes:

[0006] An elevator car position detection system includes:

[0007] The first identification unit, the second identification unit, the first detection element, and the second detection element;

[0008] The first identification unit and the second identification unit are respectively located at the upper and lower parts of the car body;

[0009] The first detection element and the second detection element are set at the corresponding floor position in the hoistway. The first detection element has a first detection area, and the second detection element has a second detection area. The first detection area and the second detection area are arranged side by side in the lifting direction of the car body.

[0010] As a further optional solution, the first detection area and the second detection area are separated by the floor level.

[0011] As a further optional solution, the height between the first detection area and the second detection area shall not exceed 500mm.

[0012] As a further optional solution, the first detection element and the second detection element are plates fixed on the inner wall of the well. The first detection area and the second detection area are respectively color areas on the first detection element and the second detection area, and the first detection area and the second detection area are different colors.

[0013] The first and second recognition units are color sensors.

[0014] As a further optional solution, the first identification unit and the second identification unit are respectively flush with the top and bottom of the car body.

[0015] As a further optional solution, a system power supply and battery module are also included;

[0016] Both the first identification unit and the second identification unit are electrically connected to the system power supply and the battery module.

[0017] As a further optional solution, a wireless transmission module and a receiving unit are also included;

[0018] The wireless transmission module is installed on the car body and is electrically connected to the first identification unit and the second identification unit. The wireless transmission module outputs the identification signals of the first identification unit and the second identification unit.

[0019] The receiving unit receives the identification signal output by the wireless transmission module.

[0020] As a further optional solution, the receiving unit is equipped with an alarm module.

[0021] As a further optional solution, the receiving unit is a mobile terminal or a smart triangular key.

[0022] As a further optional solution, the wireless transmission module is a Bluetooth transmission module.

[0023] Compared with the prior art, the elevator car position detection system of this application has at least the following advantages:

[0024] Beneficial effects:

[0025] This elevator car position detection system can confirm whether the car body is in a safe area, so that maintenance personnel can have a certain understanding of the position of the car body before opening the elevator hall door, thereby reducing the risk of maintenance personnel falling into the shaft. Attached Figure Description

[0026] Figure 1It is a diagram showing the positional relationship between the car's floor and the floor level;

[0027] Figure 2 It is a diagram showing the positional relationship between the car top and the floor level;

[0028] Figure 3 This is one of the status diagrams of an elevator car position detection system according to this utility model;

[0029] Figure 4 This is a diagram showing the positional relationship between the first and second test pieces and the floor level;

[0030] Figure 5 This is the second schematic diagram of the state of an elevator car position detection system according to this utility model;

[0031] Figure 6 This is the third schematic diagram of the state of an elevator car position detection system according to this utility model;

[0032] Figure 7 This is the fourth schematic diagram of the state of an elevator car position detection system according to this utility model;

[0033] Figure 8 This is the fifth schematic diagram of the state of an elevator car position detection system according to this utility model.

[0034] In the diagram: 100, car body; 1, first identification unit; 2, second identification unit; 3, first detection component; 4, second detection component. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Before understanding the elevator car position detection system of this application, it is necessary to understand the risks associated with the stopping position of the car body 100.

[0040] like Figure 1 In view A, the bottom of the car body 100 is flush with or nearly flush with the floor, at which point maintenance personnel can safely enter the car body 100 from the floor.

[0041] like Figure 1 In view B, the bottom of the car body 100 is much higher than the floor level, making it easy for maintenance personnel to fall into the hoistway through the gap between the car body 100 and the floor level.

[0042] like Figure 1 In view C, the bottom of the car body 100 is significantly lower than the floor level, making it easy for maintenance personnel to fall and get injured when stepping into the car body 100.

[0043] like Figure 2 In view A, the top of the car body 100 is flush with or nearly flush with the floor, at which point maintenance personnel can safely step from the floor to the top of the car body 100.

[0044] like Figure 2 In view B, the top of the car body 100 is a considerable distance above the floor level, making it easy for maintenance personnel to fall into the interior of the car body 100 and get injured.

[0045] like Figure 2In view C, the top of the car body 100 is significantly lower than the floor level, making it easy for maintenance personnel to fall onto the top of the car body 100 and get injured.

[0046] Therefore, when maintenance personnel need to safely enter the car body 100 from the outside by opening the hall door, they must ensure that the bottom of the car body 100 is flush with or nearly flush with the floor, that is, it is in a position where... Figure 1 The state of view A in the middle view; when maintenance personnel need to open the hall door to safely enter the car top for maintenance work, it is necessary to ensure that the car top of the car body 100 is flush with or substantially flush with the floor, that is, in the position of Figure 2 The state of middle view A.

[0047] To reduce the risk of accidents, refer to Figure 3-8 An embodiment of this utility model illustrates an elevator car position detection system, including a first identification unit 1, a second identification unit 2, a first detection element 3, and a second detection element 4; the first identification unit 1 and the second identification unit 2 are respectively disposed on the upper and lower parts of the car body 100; the first detection element 3 and the second detection element 4 are disposed in the shaft corresponding to each floor position, the first detection element 3 has a first detection area formed on it, the second detection element 4 has a second detection area formed on it, and the first detection area and the second detection area are arranged side by side in the lifting direction of the car body 100.

[0048] Specifically, such as Figure 4 As shown, the first detection area and the second detection area are separated by the floor level. The height of the first detection area is H1, and the height of the second detection area is H2. H1 and H2 can be the same or different.

[0049] The first and second detection areas can be identified by the first identification unit 1 and the second identification unit 2. The first identification unit 1 is located on the upper part of the car body 100, for example, flush or substantially flush with the car top. The second identification unit 2 is located on the lower part of the car body 100, for example, flush or substantially flush with the car bottom. Specifically, when the first identification unit 1 detects the first detection area, it means that the position of the car top corresponds to the H1 range on the floor. When the first identification unit 1 detects the second detection area, it means that the position of the car top corresponds to the H2 range below the floor. The values ​​of H1 and H2 are set to a safe value, for example, not exceeding 500mm. Thus, when the first identification unit 1 detects the first or second detection area, the height difference between the position of the car top and the floor is within ±500mm, and maintenance personnel can safely step onto the car top. The second identification unit 2 works on the same principle and is used to determine the position of the car bottom of the car body 100. Naturally, the smaller the values ​​of H1 and H2 are set, the closer the car top / bottom is to the floor, and the safer the maintenance personnel are.

[0050] In practical applications, the recognition status of the first recognition unit 1 and the second recognition unit 2 on the car body 100 may vary. Figure 3 , Figure 5-8 As shown, specifically:

[0051] like Figure 3 As shown, the car body 100 is located between two floors. At this time, neither the first identification unit 1 nor the second identification unit 2 can detect it, which means that it is not safe to enter the car body 100 or enter the car top.

[0052] like Figure 5 As shown, the first identification unit 1 and the second identification unit 2 are located above and below the first floor, respectively. At this time, neither the first identification unit 1 nor the second identification unit 2 can detect the car, which means that it is not safe to enter the car body 100 or enter the car top.

[0053] like Figure 6 As shown, if the first identification unit 1 detects the first detection area or the second detection area, but the second identification unit 2 does not detect it, it means that the floor detected by the first identification unit 1 can be safely entered into the car top.

[0054] like Figure 7 As shown, if the first identification unit 1 cannot detect the floor, and the second identification unit 2 detects the first or second detection area, it means that the floor detected by the second identification unit 2 can be safely entered into the interior of the car body 100.

[0055] like Figure 8 As shown, both the first identification unit 1 and the second identification unit 2 can detect the first detection area or the second detection area, which means that it is safe to enter the car top and the car body 100. It should be noted that the floor where one can safely enter the car top is different from the floor where one can safely enter the car body 100.

[0056] It should be noted that, generally, the height of the car body 100 is mostly around 3 meters, while the height of the floors varies greatly. For example, the floor height of residential buildings is generally 2.8-3 meters, while office buildings / shopping malls / factories mostly have a floor height of 5 meters. Therefore, when the floor height is large (the floor height is greater than the height of the car body 100), the first identification unit 1 and the second identification unit 2 will not detect the signal at the same time. Only when the floor height is small will the first identification unit 1 and the second identification unit 2 detect the signal at the same time.

[0057] Specifically, for ease of setup, the first detection element 3 and the second detection element 4 are plates fixed to the inner wall of the shaft. The first detection area and the second detection area are color areas on the first detection element 3 and the second detection area, respectively, and the first detection area and the second detection area are different colors. The first identification unit 1 and the second identification unit 2 are color sensors. The first detection area and the second detection area can be printed or sprayed color coatings, color stickers, or formed by the material's own color, etc. The first detection element 3 and the second detection element 4 can be metal plates or colored plastic plates, etc. In this embodiment, the colors of the first detection area and the second detection area are green and red, respectively, but other colors are not excluded.

[0058] The first detection element 3 and the second detection element 4 can be set on any side of the well wall, and the first identification unit 1 and the second identification unit 2 are set in the corresponding directions that can detect the first detection element 3 and the second detection element 4.

[0059] In some embodiments, the system further includes a system power supply and a battery module, with the first identification unit 1 and the second identification unit 2 electrically connected to the system power supply and the battery module, respectively. Under normal operating conditions, the system power supply powers the first identification unit 1 and the second identification unit 2; under abnormal operating conditions (e.g., power outage), the battery module serves as a backup power source to power the first identification unit 1 and the second identification unit 2.

[0060] In some embodiments, the system further includes a wireless transmission module and a receiving unit; the wireless transmission module is disposed on the car body 100 and is electrically connected to the first identification unit 1 and the second identification unit 2, and the wireless transmission module outputs identification signals from the first identification unit 1 and the second identification unit 2; the receiving unit receives the identification signals output by the wireless transmission module.

[0061] The wireless transmission module can be a Bluetooth module, and the receiving unit can be a mobile terminal or a smart triangular key. The mobile terminal can be a computer, mobile phone, etc. When the receiving unit is within a certain range of the wireless transmission module, it can receive the identification signals from the first identification unit 1 and the second identification unit 2, thereby determining the stopping position of the car body 100. Preferably, the receiving unit is equipped with a warning module, which can emit sound and / or light signals to alert maintenance personnel and increase their attention. When the receiving unit is a smart triangular key, reference can be made to existing technology CN208088999U.

[0062] In summary, this application provides an elevator car position detection system that can confirm whether the car body 100 is in a safe area, so that maintenance personnel can have a certain understanding of the position of the car body 100 before opening the elevator hall door, thereby reducing the risk of maintenance personnel falling into the shaft.

[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0064] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An elevator car position detection system, characterized in that, include: The first identification unit, the second identification unit, the first detection element, and the second detection element; The first identification unit and the second identification unit are respectively located at the upper and lower parts of the car body; The first detection element and the second detection element are set at the corresponding floor position in the hoistway. The first detection element has a first detection area, and the second detection element has a second detection area. The first detection area and the second detection area are arranged side by side in the lifting direction of the car body.

2. The elevator car position detection system according to claim 1, characterized in that: The first detection area and the second detection area are separated by the floor level.

3. The elevator car position detection system according to claim 2, characterized in that: The height between the first detection area and the second detection area shall not exceed 500mm.

4. The elevator car position detection system according to claim 1, characterized in that: The first and second detection components are plates fixed to the inner wall of the shaft. The first detection area and the second detection area are respectively color areas on the first and second detection components, and the first detection area and the second detection area are different colors. The first and second recognition units are color sensors.

5. The elevator car position detection system according to claim 4, characterized in that: The first identification unit and the second identification unit are flush with the top and bottom of the car body, respectively.

6. The elevator car position detection system according to any one of claims 1-5, characterized in that: It also includes the system power supply and battery module; Both the first identification unit and the second identification unit are electrically connected to the system power supply and the battery module.

7. The elevator car position detection system according to claim 6, characterized in that: It also includes a wireless transmission module and a receiving unit; The wireless transmission module is installed on the car body and is electrically connected to the first identification unit and the second identification unit. The wireless transmission module outputs the identification signals of the first identification unit and the second identification unit. The receiving unit receives the identification signal output by the wireless transmission module.

8. The elevator car position detection system according to claim 7, characterized in that: The receiving unit is equipped with an alarm module.

9. The elevator car position detection system according to claim 8, characterized in that: The receiving unit is a mobile terminal or a smart triangular key.

10. The elevator car position detection system according to claim 7, characterized in that: The wireless transmission module is a Bluetooth transmission module.

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