Intelligent detection and active calling system for people trapped in elevator

Abstract

The invention relates to the field of elevator equipment, and discloses an elevator trapped person intelligent detection and active calling system which comprises an elevator shaft, a floor outer door is correspondingly arranged on one side of the elevator shaft according to the number of floors of a building, a first position sensor is arranged on the floor outer door, and an elevator mechanism is arranged in the elevator shaft. Hoisting equipment is installed at the top end of the elevator shaft, the elevator mechanism comprises an elevator car, an elevator door assembly is installed on the side, close to the floor outer door, of the elevator car, a second position sensor is installed on the elevator car, and when the second position sensor corresponds to one first position sensor in position, the elevator car corresponds to the floor outer door in position; a monitoring camera and a control panel are installed on the inner wall of the elevator car, the second electromagnet is powered on earlier than the first electromagnet, the push plate moves to push the movable block to move, the spherical shell monitoring camera is driven to rotate to face the interior of the elevator car, the video detection angle is increased, and the detection range is expanded.

Description

Technical Field

[0001] This invention belongs to the field of elevator equipment, specifically an intelligent detection and active call system for elevator entrapment. Background Technology

[0002] Elevators typically consist of a traction system, a guiding system, a car system, a door system, a weight balancing system, an electrical control system, and a safety protection system. However, elevators often experience two main problems during operation: first, the elevator car may not stop at the intended floor; second, the elevator doors may fail to open properly. These two issues are the primary causes of elevator entrapment. When these problems occur, calling for rescue is necessary to free the trapped passengers. However, this system has the following drawbacks: When people are trapped in an elevator, monitoring and detection are only carried out by cameras installed on the side walls of the elevator car. The detection range is small and it is difficult to detect the status of people trapped in the elevator so as to take appropriate measures in time. In addition, when the people trapped in the elevator are children or the elderly, they will not use the call device to call and cannot make an active call. Summary of the Invention

[0003] In view of the above situation and to overcome the shortcomings of the prior art, the present invention provides an intelligent detection and active calling system for elevator entrapment, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an intelligent detection and active call system for elevator entrapment, comprising an elevator shaft, wherein an outer door is provided on one side of the elevator shaft according to the number of floors in the building, a first position sensor is provided on the outer door, an elevator mechanism is provided inside the elevator shaft, and a hoisting device is installed at the top of the elevator shaft; The elevator mechanism includes an elevator car, an elevator door assembly installed on the side of the elevator car near the floor's outer door, a second position sensor installed on the elevator car, and when the second position sensor corresponds to the position of one of the first position sensors, the elevator car corresponds to the position of the floor's outer door. A monitoring camera and a control panel are installed on the inner wall of the elevator car. The elevator door assembly includes two elevator door bodies. Each elevator door body has a door pulling mechanism on the side away from each other. The side of the two elevator door bodies that are close to each other is the contact surface. The side of the elevator door body that connects to the door pulling mechanism is the connection surface. The elevator door body is equipped with an outward moving pusher and a rotation drive. The outward moving pusher and the rotation drive on the two elevator door bodies are in opposite positions, and the outward moving pusher on one elevator door body corresponds to the rotation drive on the other elevator door body.

[0005] Preferably, the outward moving pusher includes a receiving groove and an inner groove formed inside the elevator door body. The receiving groove is located on the side of the inner groove close to the contact surface of the elevator door body. The receiving groove extends through to the contact surface of the elevator door body. A push plate is movably installed inside the receiving groove. An inner plate is movably installed inside the inner groove. A transverse rod is installed between the push plate and the inner plate.

[0006] Preferably, a first spring is symmetrically installed on the side of the inner plate near the push plate, one end of the first spring is fixedly connected to the inner wall of the end of the inner groove, a first magnet is installed on the inner plate, and a first electromagnet is installed on the inner wall of the end of the inner groove away from the receiving groove.

[0007] Preferably, the rotation drive component includes a movable groove formed inside the elevator door body, the movable groove extending to one side of the elevator door body contact surface, a movable block movably installed inside the movable groove, a toothed plate fixedly installed on one side of the movable block, limit plates installed in the middle of the inner bottom wall and the middle of the inner top wall of the movable groove, the movable block being located on the side of the limit plate near the elevator door body contact surface, a second spring installed between the movable block and the limit plate, and a snap-fit ​​fixing component and a rotation detection component provided between the elevator door body and the movable block.

[0008] Preferably, the snap-fit ​​fastener includes a slot formed on the side of the movable block near the inner groove, and a side groove is formed inside the elevator door body. The side groove is located on the side of the movable groove near the inner groove, and a snap-fit ​​block is movably installed inside the side groove. One end of the snap-fit ​​block is snapped into the slot.

[0009] Preferably, a third spring is symmetrically installed at the end of the locking block away from the movable block, one end of the third spring is fixedly connected to the inner wall of the end of the side groove, a second magnet is installed on the locking block, and a second electromagnet is installed on the inner wall of the end of the side groove away from the movable block.

[0010] Preferably, a second contact is installed on the inner walls of both sides of one of the side slots, and a first contact is symmetrically installed on both sides of the card block. The two first contacts are electrically connected, and an output power supply and an active caller are connected in series between the two second contacts.

[0011] Preferably, the rotation detection element includes a spherical groove formed inside the elevator door body, the spherical groove being located between the internal groove and the movable groove, a conical groove being formed on the side of the spherical groove near the inner cavity of the elevator car, a spherical shell monitoring head being installed inside the spherical groove, a gear being provided inside the movable groove, the gear being meshed with a gear plate, a rod groove being formed between the spherical groove and the movable groove, a rotating rod being rotatably installed inside the rod groove, one end of the rotating rod being coaxially connected to the gear, and the other end of the rotating rod being fixedly connected to the spherical shell monitoring head.

[0012] Preferably, one side of the movable block and one side of the push plate are flush with the contact surface of the elevator door. The movable block has an installation groove on the side close to the contact surface of the elevator door, and a pressure sensor is installed inside the installation groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This invention utilizes a second electromagnet energized before the first electromagnet to move a push plate, which in turn moves a movable block, causing the spherical shell monitoring head to rotate towards the inside of the elevator car. This increases the video detection angle and expands the detection range. The first electromagnet energized before the second electromagnet causes the push plate to move outward, generating a pushing force on the elevator door on the other side. This solves the problem of elevator doors being unable to open simply because they are blocked by impurities, thus saving maintenance costs. This invention controls the fixing and movement of a movable block by moving the locking block. When the movable block is fixed, a preliminary judgment can be made on the problem of the elevator door. When the movable block moves, the video detection range inside the elevator car can be expanded. At the same time, the movement of one of the locking blocks causes the first contact point to make contact with the second contact point to make an active call, which facilitates rescue.

[0014] This invention uses a spherical shell monitoring head and a gear fixedly connected by a rotating rod. The gear meshes with a toothed plate. When the movable block moves, the spherical shell monitoring head can be driven to rotate towards the inner cavity of the elevator car through the toothed plate and the gear, thus expanding the detection range. At the same time, by controlling the moving distance of the toothed plate, the spherical shell monitoring head can swing within a certain angle, further expanding the detection range. In addition, during normal use, the camera part of the spherical shell monitoring head faces the inside of the spherical groove for protection. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the elevator entrapment intelligent detection and active call system of the present invention; Figure 2 This is a schematic diagram of the elevator mechanism structure of the present invention; Figure 3 This is a schematic diagram of the external structure of the elevator door of the present invention; Figure 4 This is a schematic diagram of the internal structure of the elevator door of the present invention; Figure 5 This is a schematic diagram of the structure of the external moving pusher and the rotation drive of the present invention; Figure 6 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 7For the present invention Figure 5 Enlarged view at point B; Figure 8 This is a circuit diagram of the active pager of the present invention; Figure 9 This is a schematic diagram of the rotation detection element structure of the present invention; In the diagram: 1. Elevator shaft; 2. Floor door; 3. First position sensor; 4. Elevator mechanism; 401. Elevator car; 402. Elevator door; 4021. Outward moving pusher; 40211. Receiving groove; 40212. Internal groove; 40213. Push plate; 40214. Internal plate; 40215. Horizontal bar; 40216. First spring; 40217. First magnet; 40218. First electromagnet; 4022. Rotation drive; 40221. Movable groove; 40222. Movable block; 40223. Toothed plate; 40224. Limiting plate; 40225. Second spring; 4023. Snap-fit ​​fastener; 4 0231, Slot; 40232, Side Slot; 40233, Block; 40234, Third Spring; 40235, Second Magnet; 40236, Second Electromagnet; 40237, First Contact; 40238, Second Contact; 40239, Active Caller; 4024, Rotation Detector; 40241, Spherical Slot; 40242, Conical Slot; 40243, Spherical Shell Monitoring Head; 40244, Gear; 40245, Rod Slot; 40246, Rotating Rod; 4025, Mounting Slot; 4026, Pressure Sensor; 403, Second Position Sensor; 404, Surveillance Camera; 405, Control Panel. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Example 1, by Figures 1-9 The present invention relates to an intelligent detection and active call system for elevator entrapment, comprising an elevator shaft 1, an outer door 2 corresponding to the number of floors in the building on one side of the elevator shaft 1, a first position sensor 3 on the outer door 2, an elevator mechanism 4 inside the elevator shaft 1, and a hoisting device installed at the top of the elevator shaft 1, which enables the elevator mechanism 4 to move longitudinally within the elevator shaft 1.

[0019] The elevator mechanism 4 includes an elevator car 401. An elevator door assembly is installed on the side of the elevator car 401 near the floor door 2. A second position sensor 403 is installed on the elevator car 401. When the second position sensor 403 corresponds to one of the first position sensors 3, the elevator car 401 corresponds to the floor door 2. A monitoring camera 404 and a control panel 405 are installed on the inner wall of the elevator car 401. The monitoring camera 404 monitors the interior of the elevator car 401, and the control panel 405 selects the floor where the elevator car 401 stops.

[0020] The elevator door assembly includes two elevator door bodies 402. Each of the two elevator door bodies 402 has a door pulling mechanism on the side away from each other. The side of the two elevator door bodies 402 that is close to each other is the contact surface. The side of the elevator door body 402 that is connected to the door pulling mechanism is the connection surface. An outward moving push member 4021 and a rotation drive member 4022 are provided inside the elevator door body 402. The outward moving push member 4021 and the rotation drive member 4022 on the two elevator door bodies 402 are in opposite positions. The outward moving push member 4021 on one elevator door body 402 corresponds to the rotation drive member 4022 on the other elevator door body 402.

[0021] The outward moving pusher 4021 includes a receiving groove 40211 and an inner groove 40212 formed inside the elevator door body 402. The receiving groove 40211 is located on the side of the inner groove 40212 near the contact surface of the elevator door body 402, and extends through to the contact surface of the elevator door body 402. A push plate 40213 is movably installed inside the receiving groove 40211, and an inner plate 40214 is movably installed inside the inner groove 40212. A transverse rod 40215 is installed between 13 and the inner plate 40214. A first spring 40216 is symmetrically installed on the side of the inner plate 40214 near the push plate 40213. One end of the first spring 40216 is fixedly connected to the inner wall of the end of the inner groove 40212. A first magnet 40217 is installed on the inner plate 40214. A first electromagnet 40218 is installed on the inner wall of the end of the inner groove 40212 away from the receiving groove 40211.

[0022] The rotation drive component 4022 includes a movable groove 40221 formed inside the elevator door body 402. The movable groove 40221 extends to one side of the contact surface of the elevator door body 402. A movable block 40222 is movably installed inside the movable groove 40221. A toothed plate 40223 is fixedly installed on one side of the movable block 40222. Limiting plates 40224 are installed in the middle of the inner bottom wall and the middle of the inner top wall of the movable groove 40221. The movable block 40222 is located on the side of the limiting plate 40224 close to the contact surface of the elevator door body 402. A second spring 40225 is installed between the movable block 40222 and the limiting plate 40224. A snap-fit ​​fixing component 4023 and a rotation detection component 4024 are provided between the elevator door body 402 and the movable block 40222.

[0023] The snap-fit ​​fastener 4023 includes a slot 40231 formed on the side of the movable block 40222 near the internal slot 40212. A side slot 40232 is formed inside the elevator door body 402, located on the side of the movable slot 40221 near the internal slot 40212. A snap-fit ​​block 40233 is movably installed inside the side slot 40232. One end of the snap-fit ​​block 40233 snaps into the slot 40231. A third spring 40234 is symmetrically installed on the end of the snap-fit ​​block 40233 away from the movable block 40222. One end of the third spring 40234 is fixedly connected to the inner wall of the end of the side slot 40232. A second magnet is installed on the snap-fit ​​block 40233. 40235, A second electromagnet 40236 is installed on the inner wall of the end of the side groove 40232 away from the movable block 40222. The second electromagnet 40236 is energized before the first electromagnet 40218, causing the push plate 40213 to move and push the movable block 40222 to move, which drives the spherical shell monitoring head 40243 to rotate to face the inside of the elevator car 401, increasing the video detection angle and expanding the detection range. The first electromagnet 40218 is energized before the second electromagnet 40236, causing the push plate 40213 to move outward, which can generate a pushing force on the elevator door 402 on the other side, which can solve the problem that the elevator door 402 cannot be opened simply because it is blocked by impurities, saving maintenance costs.

[0024] A second contact 40238 is installed on the inner walls of both sides of one of the side slots 40232. A first contact 40237 is symmetrically installed on both sides of the locking block 40233. The two first contacts 40237 are electrically connected. An output power supply and an active call device 40239 are connected in series between the two second contacts 40238. The movement of the locking block 40233 can control the fixing and movement of the movable block 40222. When the movable block 40222 is fixed, a preliminary judgment can be made on the problem of the elevator door 402. When the movable block 40222 is moved, the video detection range inside the elevator car 401 can be expanded. At the same time, the movement of one of the locking blocks 40233 makes the first contact 40237 contact the second contact 40238 to make an active call, which facilitates rescue.

[0025] The rotation detection element 4024 includes a spherical groove 40241 formed inside the elevator door body 402. The spherical groove 40241 is located between the internal groove 40212 and the movable groove 40221. A conical groove 40242 is formed on the side of the spherical groove 40241 near the inner cavity of the elevator car 401. A spherical shell monitoring head 40243 is installed inside the spherical groove 40241. A gear 40244 is arranged inside the movable groove 40221. Wheel 40244 meshes with toothed plate 40223. A rod groove 40245 is formed between spherical groove 40241 and movable groove 40221. A rotating rod 40246 is rotatably mounted inside the rod groove 40245. One end of the rotating rod 40246 is coaxially connected to gear 40244, and the other end is fixedly connected to spherical shell monitoring head 40243. One side of movable block 40222 and one side of push plate 40213... The movable block 40222 is flush with the contact surface of the elevator door 402. A mounting groove 4025 is provided on the side of the movable block 4022 closest to the contact surface of the elevator door 402. A pressure sensor 4026 is installed inside the mounting groove 4025. The spherical shell monitoring head 40243 and gear 40244 are fixedly connected via a rotating rod 40246. The gear 40244 meshes with the toothed plate 40223. When the movable block 40222 moves, it can drive the spherical shell monitoring head 40243 to rotate towards the inner cavity of the elevator car 401 via the toothed plate 40223 and gear 40244, expanding the detection range. Simultaneously, by controlling the moving distance of the toothed plate 40223, the spherical shell monitoring head 40243 can swing within a certain angle, further expanding the detection range. Furthermore, during normal use, the camera portion of the spherical shell monitoring head 40243 faces the inside of the spherical groove 40241 for protection.

[0026] Working principle: During use, the elevator car 401 is driven to move longitudinally inside the elevator shaft 1 by the hoisting equipment at the top of the elevator shaft 1. When the elevator car 401 needs to move to the required floor, the position is determined by the first position sensor 3 of the corresponding floor and the second position sensor 403 on the elevator car 401. Then, the door on the first position sensor 3 opens, and the door pulling mechanism on the elevator car 401 pulls the two elevator doors 402 away from each other, opening the elevator car 401, and then passengers can get on and off. The control panel 405 can select the floor where the elevator car 401 stops, and the monitoring camera 404 can monitor the situation inside the elevator car 401. When an elevator malfunctions and people are trapped, the following two situations may occur: Elevator car 401 did not stop at the normal floor, but instead stopped between two adjacent floors; Elevator car 401 is stuck on a normal floor, but the two elevator doors 402 cannot be opened.

[0027] When it is detected that elevator car 401 is stopped between two adjacent floors: First, the second electromagnet 40236 inside the elevator door 402 is energized, attracting the second magnetic block 40235 and causing the locking block 40233 to move, disengaging it from the slot 40231. This disengages the locking block 40233 from the movable block 40222. Then, the first electromagnet 40218 is energized, repelling the first magnetic block 40217, which pushes the push plate 40213 towards the movable block 40222, thereby pushing the movable block 40222. 222 and the toothed plate 40223 move, and the toothed plate 40223 meshes with the gear 40244, thereby driving the gear 40244 to rotate. The gear 40244 is fixedly connected to the spherical shell monitoring head 40243 through the rotating rod 40246, thereby driving the spherical shell monitoring head 40243 to rotate, so that the lens of the spherical shell monitoring head 40243 rotates to the side facing the conical groove 40242, increasing the video detection angle inside the elevator car 401 and improving the detection range. When one of the locking blocks 40233 moves to a position where it can no longer move under the attraction of the second electromagnet 40236, the two first contacts 40237 on the locking block 40233 contact the two second contacts 40238 respectively, thereby connecting the circuit of the active caller 40239, which in turn powers the active caller 40239 to make an automatic call, making it convenient for trapped personnel to contact the outside world in a timely manner.

[0028] When it is detected that the elevator car 401 is stopped at a normal floor, but the two elevator doors 402 cannot be opened, the first electromagnet 40218 is energized first, so that the push plate 40213 generates a pushing force on the movable block 40222 on the other elevator door 402. The movable block 40222 is locked and fixed by the locking block 40233, so that the pushing force acts on the elevator door 402 on the other side. If the elevator door 402 is only stuck by external force, the elevator door 402 can be pushed open directly by the pushing force, thus solving the problem. If the pressure detected by the pressure sensor 4026 on the movable block 40222 and the pressure sensor 4026 on the push plate 40213 continuously increases, it indicates that the elevator door 402 cannot be pushed open. At this time, the second electromagnet 40236 is energized, which attracts the second magnetic block 40235, drives the locking block 40233 to move upward and disengage from the movable block 40222. Then the push plate 40213 moves to push the movable block 40222 to move, which drives the gear 40244 to rotate, which drives the spherical shell monitoring head 40243 to rotate for detection. The resistance of the circuit containing the first electromagnet 40218 is adjusted by a rheostat. Adjusting the resistance of the first electromagnet 40218 facilitates the adjustment of the moving distance of the toothed plate 40223, thereby driving the spherical shell monitoring head 40243 to swing horizontally, increasing the video detection angle. At the same time, when the elevator car 401 is in normal use, the lens of the spherical shell monitoring head 40243 faces the inside of the spherical groove 40241. On the one hand, this protects the lens of the spherical shell monitoring head 40243 from damage during the movement of the elevator door 402. On the other hand, a single monitoring camera 404 can monitor the inside of the elevator car 401, reducing unnecessary monitoring of the elevator car 401 and protecting privacy.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An intelligent detection and active call system for elevator entrapment, comprising an elevator shaft (1), characterized in that: One side of the elevator shaft (1) is provided with an outer door (2) corresponding to the number of floors in the building. A first position sensor (3) is provided on the outer door (2). An elevator mechanism (4) is provided inside the elevator shaft (1). A hoisting device is installed at the top of the elevator shaft (1). The elevator mechanism (4) includes an elevator car (401). An elevator door assembly is installed on the side of the elevator car (401) near the floor door (2). A second position sensor (403) is installed on the elevator car (401). When the second position sensor (403) corresponds to one of the first position sensors (3), the elevator car (401) corresponds to the floor door (2). A monitoring camera (404) and a control panel (405) are installed on the inner wall of the elevator car (401). The elevator door assembly includes two elevator door bodies (402). Each of the two elevator door bodies (402) is provided with a door pulling mechanism on the side away from each other. The side of the two elevator door bodies (402) that is close to each other is the contact surface. The side of the elevator door body (402) that is connected to the door pulling mechanism is the connecting surface. An outward pushing member (4021) and a rotation driving member (4022) are provided inside the elevator door body (402). The outward pushing member (4021) and the rotation driving member (4022) on the two elevator door bodies (402) are in opposite positions. The outward pushing member (4021) on the elevator door body (402) corresponds to the rotation driving member (4022) on the other elevator door body (402).

2. The elevator entrapment intelligent detection and active call system according to claim 1, characterized in that: The outward moving pusher (4021) includes a receiving groove (40211) and an inner groove (40212) opened inside the elevator door (402). The receiving groove (40211) is located on the side of the inner groove (40212) close to the contact surface of the elevator door (402). The receiving groove (40211) extends through to the contact surface of the elevator door (402). A push plate (40213) is movably installed inside the receiving groove (40211). An inner plate (40214) is movably installed inside the inner groove (40212). A transverse rod (40215) is installed between the push plate (40213) and the inner plate (40214).

3. The elevator entrapment intelligent detection and active call system according to claim 2, characterized in that: The inner plate (40214) is symmetrically equipped with a first spring (40216) on the side near the push plate (40213). One end of the first spring (40216) is fixedly connected to the inner wall of the end of the inner groove (40212). A first magnet (40217) is installed on the inner plate (40214). A first electromagnet (40218) is installed on the inner wall of the end of the inner groove (40212) away from the receiving groove (40211).

4. The elevator entrapment intelligent detection and active call system according to claim 1, characterized in that: The rotation drive component (4022) includes a movable groove (40221) opened inside the elevator door body (402). The movable groove (40221) extends to one side of the contact surface of the elevator door body (402). A movable block (40222) is movably installed inside the movable groove (40221). A toothed plate (40223) is fixedly installed on one side of the movable block (40222). Limiting plates (40224) are installed in the middle of the inner bottom wall and the middle of the inner top wall of the movable groove (40221). The movable block (40222) is located on the side of the limiting plate (40224) close to the contact surface of the elevator door body (402). A second spring (40225) is installed between the movable block (40222) and the limiting plate (40224). A snap-fit ​​fixing component (4023) and a rotation detection component (4024) are provided between the elevator door body (402) and the movable block (40222).

5. The elevator entrapment intelligent detection and active call system according to claim 4, characterized in that: The snap-fit ​​fastener (4023) includes a slot (40231) opened on the side of the movable block (40222) near the inner slot (40212). The elevator door body (402) has a side slot (40232) inside. The side slot (40232) is located on the side of the movable slot (40221) near the inner slot (40212). A snap-fit ​​block (40233) is movably installed inside the side slot (40232). One end of the snap-fit ​​block (40233) is snapped into the slot (40231).

6. The elevator entrapment intelligent detection and active call system according to claim 5, characterized in that: A third spring (40234) is symmetrically installed at the end of the locking block (40233) away from the movable block (40222). One end of the third spring (40234) is fixedly connected to the inner wall of the end of the side groove (40232). A second magnet (40235) is installed on the locking block (40233). A second electromagnet (40236) is installed on the inner wall of the end of the side groove (40232) away from the movable block (40222).

7. The elevator entrapment intelligent detection and active call system according to claim 5, characterized in that: A second contact (40238) is installed on the inner walls of both sides of one of the side grooves (40232), and a first contact (40237) is symmetrically installed on both sides of the card block (40233). The two first contacts (40237) are electrically connected, and an output power supply and an active caller (40239) are connected in series between the two second contacts (40238).

8. The elevator entrapment intelligent detection and active call system according to claim 4, characterized in that: The rotation detection element (4024) includes a spherical groove (40241) formed inside the elevator door body (402). The spherical groove (40241) is located between the inner groove (40212) and the movable groove (40221). A conical groove (40242) is formed on the side of the spherical groove (40241) closest to the inner cavity of the elevator car (401). A spherical shell monitoring head (40243) is installed inside the spherical groove (40241). The interior of the movable groove (40221) is... A gear (40244) is provided, which meshes with a toothed plate (40223). A rod groove (40245) is provided between a spherical groove (40241) and a movable groove (40221). A rotating rod (40246) is rotatably installed inside the rod groove (40245). One end of the rotating rod (40246) is coaxially connected to the gear (40244), and the other end of the rotating rod (40246) is fixedly connected to the spherical shell monitoring head (40243).

9. The elevator entrapment intelligent detection and active call system according to claim 4, characterized in that: One side of the movable block (40222) and one side of the push plate (40213) are flush with the contact surface of the elevator door (402). The movable block (40222) has an installation groove (4025) on the side close to the contact surface of the elevator door (402), and a pressure sensor (4026) is installed inside the installation groove (4025).

Images