An elevator safety detection system and method

Abstract

The application discloses an elevator safety detection system and method, which comprises a magnetic grid scale belt break detection device and a leveling detection device. The magnetic grid scale belt break detection device comprises a support assembly, a counterweight component and a belt break detection assembly. When the magnetic grid scale belt breaks, the counterweight component drives the belt break detection assembly to move to compress the elastic assembly. The leveling detection device comprises a leveling detection assembly, a guide sleeve and a valve core. When the valve core is separated from the leveling detection assembly, the leveling detection assembly can slide from a standby position to a working position. In the early stage of the magnetic grid scale belt break, the counterweight component can push the belt break detection assembly to move to compress the elastic assembly to buffer the impact formed by the counterweight component. In the late stage of the magnetic grid scale belt break, the leveling detection assembly slides to the working position, and the elevator detects whether the car reaches the leveling position through the leveling detection assembly to ensure efficient evacuation of passengers.

Description

Technical Field

[0001] This application relates to the field of elevator technology, and in particular to an elevator safety detection system and method. Background Technology

[0002] The current elevator magnetic scale breakage detection device stops the elevator immediately when it detects a broken magnetic scale. If there are still passengers in the elevator car and the car has not reached the landing position, the passengers can only wait for staff to repair or replace the magnetic scale before they can leave the car, which reduces the passenger experience.

[0003] On the other hand, the triggering process of the tape breakage detection switch in the magnetic scale tape breakage detection device lacks buffering, and the impact of the triggering structure can easily damage the tape breakage detection switch. Summary of the Invention

[0004] To solve at least one of the above-mentioned technical problems, this application provides an elevator safety inspection system and method, the technical solution of which is as follows:

[0005] This application provides an elevator safety inspection system, which includes a magnetic scale strip breakage detection device and a leveling detection device. The magnetic scale strip breakage detection device includes a support assembly, a counterweight component, and a strip breakage detection component. The counterweight component is used to connect the magnetic scale. The strip breakage detection component includes a strip breakage detection switch. An elastic component is disposed between the strip breakage detection component and the support assembly. When the magnetic scale strip breaks, the counterweight component falls, triggering the strip breakage detection switch and driving the strip breakage detection component to move, thereby compressing the elastic component. The leveling detection device includes a leveling detection component, a guide sleeve, and a valve core. The guide sleeve is disposed on the elevator car. The leveling detection component is slidably connected to the guide sleeve. The valve core is movably connected inside the guide sleeve. When the valve core blocks the leveling detection component, the leveling detection component is restricted to a standby position. When the valve core disengages from the leveling detection component, the leveling detection component can slide to a working position.

[0006] In some embodiments of this application, the tape breakage detection component further includes a buffer structure, wherein when the tape breakage detection component moves to its limit position, the bottom of the buffer structure abuts against the support component;

[0007] The buffer structure is provided with a first limiting part, and the elastic component includes a first elastic structure, which is sleeved on the buffer structure and located between the first limiting part and the support component.

[0008] In some embodiments of this application, the buffer structure is provided with a second elastic structure, the support assembly is provided with a sleeve, the sleeve surrounds the outside of the buffer structure, and the second elastic structure is capable of elastic deformation in contact with the sleeve.

[0009] In some embodiments of this application, a protective shell is provided on the tape breakage detection switch, the protective shell is sleeved on the outside of the tape breakage detection switch, and the trigger terminal of the tape breakage detection switch passes through the protective shell.

[0010] In some embodiments of this application, the support assembly includes a first support structure and a second support structure, wherein the first support structure is provided with a guide hole for the counterweight component to pass through the first support structure.

[0011] The second support structure and the first support structure form an active space, within which the counterweight component can move.

[0012] In some embodiments of this application, a driving structure is provided on the side wall of the guide sleeve, and the driving structure drives the valve core to move so that the valve core blocking the leveling detection component disengages from the leveling detection component.

[0013] In some embodiments of this application, the leveling detection assembly includes an extensional structure and a leveling detection switch, wherein the extensional structure extends from the interior of the guide sleeve and is connected to the leveling detection switch on the exterior of the guide sleeve.

[0014] In some embodiments of this application, the extension structure is provided with a first mounting hole, and the side wall of the guide sleeve is provided with a second mounting hole. The first mounting hole and the second mounting hole are connected, and the valve core is inserted into the guide sleeve along the second mounting hole and the first mounting hole.

[0015] In some embodiments of this application, a third elastic structure is provided inside the guide sleeve, and the third elastic structure is located at the closed end of the guide sleeve;

[0016] When the leveling detection component is in the standby position, the extension structure compresses the third elastic structure, and the third elastic structure can drive the leveling detection component to slide to the working position.

[0017] This application provides an elevator safety inspection method, applied to the aforementioned elevator safety inspection system. The elevator safety inspection method includes:

[0018] When the magnetic scale experiences a tape breakage, it triggers the tape breakage detection switch, which then transmits the tape breakage information to the information processor.

[0019] The traction machine drives the elevator to decelerate and sends fault information to the staff.

[0020] The leveling detection component in the leveling detection device moves to the working position, and the magnetic scale reading head reads the last position of the elevator and the angular velocity of the traction machine. The braking distance of the elevator is determined based on the elevator position and speed information.

[0021] After the elevator stops running, if the leveling detection switch is not triggered, the elevator door remains closed; if the leveling detection switch is triggered, the elevator door opens.

[0022] The embodiments of this application have at least the following beneficial effects: In the initial stage of the magnetic scale breaking phenomenon, the counterweight component falls together with the broken part of the magnetic scale. The counterweight component falls onto the broken belt detection switch, triggering the broken belt detection switch. At the same time, the counterweight component can push the broken belt detection component to move, thereby compressing the elastic component to buffer the impact formed by the counterweight component and prevent damage to the broken belt detection switch. In the later stage of the magnetic scale breaking phenomenon, the valve core moves away from the leveling detection component, making way for the sliding space of the leveling detection component. The leveling detection component slides to the working position. The elevator detects whether the elevator car has reached the leveling position through the leveling detection component. When the car reaches the leveling position with the assistance of the leveling detection component, passengers can efficiently evacuate the car, improving the user experience.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the magnetic ruler breakage detection device in the elevator safety inspection system of this application;

[0026] Figure 2 This is a front view of the magnetic scale breakage detection device in the elevator safety inspection system of this application;

[0027] Figure 3 This is a cross-sectional view of the magnetic scale breakage detection device in the elevator safety inspection system of this application in the disconnected state;

[0028] Figure 4 This is a cross-sectional view of the magnetic scale breakage detection device in the elevator safety inspection system of this application in the triggered state;

[0029] Figure 5 This is a front view of the buffer structure in the magnetic scale breakage detection device of the elevator safety inspection system of this application;

[0030] Figure 6 This is a schematic diagram of the support assembly in the magnetic scale breakage detection device of the elevator safety inspection system of this application;

[0031] Figure 7 This is a cross-sectional view of the support assembly in the magnetic scale breakage detection device of the elevator safety inspection system of this application;

[0032] Figure 8 This is a schematic diagram of the leveling detection device installed on the elevator car in the elevator safety inspection system of this application;

[0033] Figure 9 yes Figure 8 Partial enlarged view of the mid-leveling detection device (I);

[0034] Figure 10 This is a schematic diagram of the leveling detection device in the elevator safety inspection system of this application;

[0035] Figure 11 This is a cross-sectional view of the leveling detection device in the elevator safety inspection system of this application;

[0036] Figure 12 This is a schematic diagram of the extension structure in the leveling detection device of the elevator safety inspection system of this application.

[0037] Figure 13 This is a flowchart of the elevator safety inspection method of this application.

[0038] Figure label:

[0039] Support assembly 101; first support structure 102; second support structure 103; guide hole 104; first connecting part 105; first horizontal part 106; second horizontal part 107; second connecting part 108; third horizontal part 109; fourth horizontal part 110; first socket 111; second socket 112;

[0040] Counterweight component 201; Magnetic scale 202;

[0041] Belt breakage detection switch 301; buffer structure 302; first limiting part 303; first elastic structure 304; second elastic structure 305; sleeve 306; second limiting part 307;

[0042] First mounting structure 401; Second mounting structure 402; Protective shell 403;

[0043] Leveling detection device 500; landing door head 501; car 502; triggering structure 503;

[0044] Guide sleeve 601; valve core 602; electromagnet structure 603; motion chamber 604; third elastic structure 605; limit plate 606;

[0045] Leveling detection switch 701; trigger rod 702; extension structure 703; bending part 704; connecting part 705; first mounting hole 706; second mounting hole 707. Detailed Implementation

[0046] This section will combine Figures 1 to 13 The embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0047] In the description of this application, it should be understood that the use of terms such as "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings is solely for the convenience of describing this application and simplifying the description, and does 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, and therefore should not be construed as a limitation of this application. Features defined with "first" and "second" are used to distinguish feature names and do not have special meanings. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] This application provides an elevator safety inspection system, which includes a magnetic ruler strip breakage detection device and a leveling detection device.

[0050] like Figure 1 and Figure 2 As shown in the figure, this application provides a magnetic scale tape breakage detection device, which includes a support assembly 101, a counterweight component 201 and a tape breakage detection component, and the tape breakage detection component includes a tape breakage detection switch 301.

[0051] When the magnetic scale breakage detection device is in the off state, the counterweight component 201 remains at a distance from the breakage detection switch 301, and the elevator can operate normally. When the magnetic scale breakage detection device is in the triggered state, the counterweight component 201 contacts the breakage detection switch 301, thereby triggering the breakage detection switch 301. At this time, the elevator stops running to ensure elevator safety. Simultaneously, with the counterweight component 201 having triggered the breakage detection switch 301, it can drive the breakage detection assembly to move. During this movement, the structure between the breakage detection assembly and the support assembly 101 provides cushioning, thereby mitigating the impact of the counterweight component 201 on the breakage detection switch 301 and preventing damage to the breakage detection switch 301.

[0052] In some examples, the magnetic scale 202 in the elevator is vertically positioned during operation, and the counterweight component 201 is connected to the bottom of the magnetic scale 202. When the magnetic scale 202 experiences a belt breakage, the traction effect of the magnetic scale 202 on the counterweight component 201 disappears. Under the influence of the gravity of the counterweight component 201, the counterweight component 201, along with the broken part of the magnetic scale 202, falls, thereby triggering the belt breakage detection switch 301.

[0053] The support assembly 101 is fixed in position and supports the belt breakage detection assembly without affecting the fall of the counterweight component 201. Furthermore, the belt breakage detection switch 301 in the belt breakage detection assembly is located at the bottom of the counterweight component 201, so that the belt breakage detection switch 301 can be triggered during the fall of the counterweight component 201.

[0054] It is worth noting that the support assembly 101 is movably connected to the belt breakage detection assembly, and an elastic component is provided between the belt breakage detection assembly and the support assembly 101. When the counterweight 201 triggers the belt breakage detection switch 301 by falling, the movement of the counterweight 201 does not stop immediately. Therefore, under the impact of the counterweight 201, the belt breakage detection assembly will move vertically downwards. During the movement of the belt breakage detection assembly, the belt breakage detection assembly compresses the elastic component, causing the elastic component to undergo elastic deformation. The gravitational potential energy of the counterweight 201 is gradually converted into the elastic potential energy of the elastic component, thereby buffering the impact on the counterweight 201. It can be understood that compared to a fixed installation of the belt breakage detection switch 301, the belt breakage detection switch 301 with a buffer in this application needs to withstand less impact force, thus preventing damage to the belt breakage detection switch 301.

[0055] like Figure 3 , Figure 4 and Figure 5As shown, in some examples, the belt breakage detection component also includes a buffer structure 302, which is used to set the elastic component. Simultaneously, the buffer structure 302 can also limit the movement limit position of the belt breakage detection component. When the belt breakage detection component reaches the limit position driven by the counterweight component 201, the buffer structure 302 will contact the support assembly 101. Under the blocking effect of the support assembly 101, the buffer structure 302 cannot continue to fall, and the belt breakage detection component also stops moving.

[0056] Furthermore, the buffer structure 302 is generally formed in the shape of a rod, and a first limiting part 303 is provided on the buffer structure 302. The first limiting part 303 is provided on the middle side wall of the buffer structure 302, and the first limiting part 303 protrudes from the side wall of the buffer structure 302.

[0057] Meanwhile, the elastic component includes a first elastic structure 304, which is disposed on the top of the support assembly 101 and in contact with the support assembly 101. Specifically, the first elastic structure 304 can be a spring, which is sleeved on the buffer structure 302 and positioned between the first limiting part 303 and the support assembly 101. The impact of the counterweight component 201 drives the buffer structure 302 to descend, that is, the position of the first limiting part 303 also descends, thereby compressing the first elastic structure 304 to form a primary buffer.

[0058] In some examples, a second elastic structure 305 is provided on the buffer structure 302. The second elastic structure 305 is located on top of the support assembly 101 and protrudes from the side wall of the buffer structure 302. Specifically, the second elastic structure 305 may be a rubber ring.

[0059] The support assembly 101 has a sleeve 306 at its top, and the buffer structure 302 moves vertically inside the sleeve 306, which has a certain height. Under the impact of the counterweight 201, and when the primary buffer is already in effect, as the buffer structure 302 continues to descend, the second elastic structure 305 gradually approaches and contacts the top of the sleeve 306. The second elastic structure 305 then undergoes a certain degree of elastic deformation to form a secondary buffer.

[0060] In some examples, the buffer structure 302 is provided with a second limiting part 307, which is used to support the second elastic structure 305 and prevent the second elastic structure 305 from undergoing excessive elastic deformation.

[0061] The second limiting part 307 protrudes from the side wall of the buffer structure 302. The second limiting part 307 and the second elastic structure 305 are stacked and positioned by fasteners installed on the buffer structure 302. Specifically, the buffer structure 302 has threads at the locations where the second limiting part 307 and the second elastic structure 305 need to be installed. The second limiting part 307 and the second elastic structure 305 are sleeved on the buffer structure 302, and nuts are installed at both ends of the integral formed by the second limiting part 307 and the second elastic structure 305. Specifically, a washer can be installed between the integral formed by the second limiting part 307 and the second elastic structure 305 and the nuts as needed.

[0062] like Figure 1 and Figure 2 As shown, in some examples, to ensure the connection between the buffer structure 302 and the tape breakage detection switch 301, the tape breakage detection assembly further includes a first mounting structure 401, which is generally plate-shaped. Specifically, the top edge of the first mounting structure 401 is connected to the buffer structure 302 by fasteners, and the bottom edge of the first mounting structure 401 is connected to the tape breakage detection switch 301.

[0063] In some examples, to further ensure the connection between the first mounting structure 401 and the tape breakage detection switch 301, the tape breakage detection assembly also includes a second mounting structure 402, which is generally plate-shaped. The second mounting structure 402 is connected to the tape breakage detection switch 301. When the tape breakage detection switch 301 needs to be placed horizontally, the second mounting structure 402 is also placed horizontally, and the edge of the second mounting structure 402 is provided with a folded edge, which is connected to the first mounting structure 401.

[0064] In some examples, to prevent the counterweight component 201 from contacting anything other than the trigger end of the belt breakage detection switch 301, a protective shell 403 is provided on the belt breakage detection switch 301, which is fitted over the outside of the belt breakage detection switch 301. The protective shell 403 has a perforated structure, and the trigger end of the belt breakage detection switch 301 extends out of the protective shell 403 along the perforated structure to facilitate triggering of the counterweight component 201.

[0065] like Figure 6 and Figure 7 As shown, in some examples, the support assembly 101 includes a first support structure 102 and a second support structure 103. The first support structure 102 and the second support structure 103 provide support for the belt breakage detection assembly on the one hand, and on the other hand, the first support structure 102 and the second support structure 103 define the movement path of the counterweight component 201, ensuring that the counterweight component 201 can move in the vertical direction.

[0066] The first support structure 102 is provided with a guide hole 104, which can penetrate the first support structure 102. The counterweight component 201 is located within the range of the guide hole 104 and is slidably connected to the inner edge of the guide hole 104. When the magnetic scale 202 experiences a tape breakage, the counterweight component 201 penetrates the first support structure 102 along the guide hole 104.

[0067] Furthermore, the second support structure 103 and the first support structure 102 form an active space, within which the counterweight component 201 can move.

[0068] In some examples, the first support structure 102 includes a first connecting portion 105, a first horizontal portion 106, and a second horizontal portion 107 that are connected to each other. The first connecting portion 105 is vertically arranged, the first horizontal portion 106 is located at the top edge of the first connecting portion 105, and the second horizontal portion 107 is located at the bottom edge of the first connecting portion 105.

[0069] Understandably, since the counterweight component 201 is vertically arranged, both the first horizontal portion 106 and the second horizontal portion 107 are provided with guide holes 104. The guide holes 104 on the first horizontal portion 106 and the guide holes 104 on the second horizontal portion 107 are vertically corresponding to each other to define the movement channel of the counterweight component 201. At the same time, the sleeve 306 is provided on the first horizontal portion 106.

[0070] Furthermore, the second support structure 103 includes a second connecting portion 108, a third horizontal portion 109, and a fourth horizontal portion 110 that are interconnected. The second connecting portion 108 is vertically arranged, the third horizontal portion 109 is located at the top edge of the second connecting portion 108, and the fourth horizontal portion 110 is located at the bottom edge of the second connecting portion 108. The second support structure 103 is embedded in the first support structure 102, so that the third horizontal portion 109 and the first horizontal portion 106 form surface contact, and the fourth horizontal portion 110 and the second horizontal portion 107 form surface contact. Thus, the activity space is enclosed by the first connecting portion 105 and the second connecting portion 108.

[0071] In some examples, the vertically positioned band breakage detection component needs to pass through the bracket assembly 101. Therefore, both the first horizontal section 106 and the third horizontal section 109 are provided with first insertion holes 111, which are connected to each other. The buffer structure 302 passes through each of the first insertion holes 111. Both the second horizontal section 107 and the fourth horizontal section 110 are provided with second insertion holes 112, which are connected to each other. The first mounting structure 401 passes through each of the second insertion holes 112.

[0072] Understandably, to prevent the buffer structure 302 from shaking significantly within the first socket 111, the size of the first socket 111 is approximately the same as the cross-sectional size of the buffer structure 302; similarly, to prevent the first mounting structure 401 from shaking significantly within the second socket 112, the size of the second socket 112 is approximately the same as the cross-sectional size of the first mounting structure 401.

[0073] This application provides a leveling detection device 500, which includes a leveling detection component, a guide sleeve 601, and a valve core 602. The leveling detection component can move along the guide sleeve 601, thereby switching between a standby position and a working position. When the elevator is working normally, the leveling detection component is in the standby position under the restriction of the valve core 602. At this time, the elevator can use a magnetic scale to detect the position of the car 502. When the magnetic scale breaks, the restriction effect of the valve core 602 on the leveling detection component is removed, and the leveling detection component moves to the working position, thereby detecting and guiding the car 502 to the leveling position, facilitating the timely evacuation of passengers from the car 502.

[0074] like Figure 8 As shown, in some examples, the leveling detection component is used to detect whether the elevator car 502 has reached the leveling position. When the magnetic scale breaks, the elevator car 502 will continue to run a certain distance until it reaches the leveling position. If the elevator door 501 triggers the leveling detection component during the continued running of the car 502, it means that the car 502 has reached the leveling position, and the car 502 will stop moving.

[0075] like Figure 9 That is, the enlarged view I and Figure 10 As shown, in some examples, the leveling detection component includes a leveling detection switch 701, which is provided with a trigger rod 702 and is horizontally positioned.

[0076] Furthermore, the trigger lever 702 can rotate on the leveling detection switch 701. When the elevator is working normally, the trigger lever 702 always remains horizontal; when the elevator experiences a magnetic scale band breakage and the car 502 has not reached the leveling position, the trigger lever 702 also remains horizontal; when the elevator experiences a magnetic scale band breakage and the car 502 has reached the leveling position, the trigger lever 702 rotates, thereby sending a signal to stop the car 502.

[0077] In some examples, after the leveling detection component reaches the working position, to ensure that the leveling detection switch 701 can be triggered at the leveling position, the leveling detection device 500 also includes a triggering structure 503. The triggering structure 503 is generally rod-shaped and is disposed on the elevator landing door head 501. The position of the triggering structure 503 is fixed. As the car 502 moves to the leveling position, the leveling detection switch 701 also moves, causing the triggering structure 503 to contact and actuate the triggering rod 702, thus causing the triggering rod 702 to rotate.

[0078] It is worth noting that when the leveling detection component is in the working position, the leveling detection switch 701 extends beyond the range of the car 502. It can be understood that the leveling detection switch 701 extends towards the landing door head 501 so that the triggering structure 503 can move the trigger rod 702.

[0079] like Figure 11 As shown, the guide sleeve 601 is disposed on the elevator car 502. The guide sleeve 601 has an opening on one side, and includes an open end and a closed end. The leveling detection component is inserted into the guide sleeve 601 along the open end of the guide sleeve 601, and the leveling detection component inserted into the guide sleeve 601 is slidably connected to the guide sleeve 601, so the leveling detection component can slide along the guide sleeve 601.

[0080] Understandably, the length of the leveling detection component extending beyond the guide sleeve 601 changes as the leveling detection component slides. Specifically, when the leveling detection component is in the standby position, the length extending beyond the guide sleeve 601 is smaller to avoid contact between the leveling detection component and the trigger structure 503 on the landing door head 501; when the leveling detection component is in the working position, the length extending beyond the sleeve is larger to facilitate the trigger structure 503 triggering the leveling detection switch 701 on the leveling detection component.

[0081] Furthermore, the valve core 602 is located inside the guide sleeve 601, and the valve core 602 can move within the guide sleeve 601 to limit the position of the leveling detection component. Specifically, when the leveling detection component is in the standby position, the valve core 602 blocks the leveling detection component, preventing it from moving out of the guide sleeve 601; when the valve core 602 moves away from the leveling detection component, the limiting effect of the valve core 602 is eliminated, and the leveling detection component can move to the working position.

[0082] In some examples, the valve core 602 moves radially within the guide sleeve 601. The drive structure for driving the valve core 602 is located on the side wall of the guide sleeve 601. Under the action of the drive structure, the valve core 602 can gradually move from the position blocking the leveling detection component to the position detached from the leveling detection component, so that the leveling detection component can move to the working position.

[0083] In some examples, the drive structure employs an electromagnet structure 603, which can attract the valve core 602 and protrudes from the outer wall of the guide sleeve 601. Furthermore, the electromagnet structure 603 has a motion chamber 604 inside, which communicates with the internal space of the guide sleeve 601. Simultaneously, the position of the valve core 602 corresponds to the position of the motion chamber 604.

[0084] When the leveling detection component is in the standby position, the electromagnet structure 603 does not work, and the valve core 602 blocks the leveling detection component within the range of the guide sleeve 601. When the leveling detection component needs to move to the working position, the electromagnet structure 603 starts to work and attracts the valve core 602 into the motion chamber 604 to detach it from the leveling detection component, thus making room for the leveling detection component to move.

[0085] In some examples, the leveling detection assembly also includes an extension structure 703 for connecting the leveling detection switch 701 and the guide sleeve 601. One end of the extension structure 703 is located inside the guide sleeve 601, and the other end is located outside the guide sleeve 601. It can be understood that the leveling detection assembly is slidably connected to the guide sleeve 601 via the extension structure 703, and the leveling detection switch 701 is connected to the end of the extension structure 703 located outside the guide sleeve 601.

[0086] like Figure 12 As shown, in some examples, the extension structure 703 includes a connecting portion 705 and a bending portion 704, the bending portion 704 being located inside the guide sleeve 601, and the connecting portion 705 and the bending portion 704 forming an angle. The shape of the bending portion 704 is approximately the same as the shape of the internal space of the guide sleeve 601.

[0087] In some examples, a limiting plate 606 is provided at the open end of the guide sleeve 601. The limiting plate 606 can prevent the extension structure 703 from moving beyond its travel distance from the guide sleeve 601. Specifically, when the extension structure 703 slides to its limit position, the limiting plate 606 interferes with the bending part 704, thereby preventing the extension structure 703 from continuing to slide and preventing the leveling detection component from completely detaching from the guide sleeve 601.

[0088] Furthermore, the limiting plate 606 partially covers the opening of the guide sleeve 601, and leaves a gap at the opening of the guide sleeve 601 for setting the extension structure 703. Therefore, the limiting plate 606 prevents the extension structure 703 from falling off without affecting the sliding of the extension structure 703.

[0089] In some examples, a third elastic structure 605 is provided inside the guide sleeve 601, and the third elastic structure 605 is located at the closed end of the guide sleeve 601. When the leveling detection component is in the standby position, the extension structure 703 extends a large distance into the guide sleeve 601, thereby compressing the third elastic structure 605. Furthermore, since the valve core 602 keeps the leveling detection component in the standby position, the third elastic structure 605 can remain in a compressed state.

[0090] When the valve core 602 eliminates the limiting effect on the leveling detection component through movement, the limiting effect of the extension structure on the third elastic structure 605 also disappears. The third elastic structure 605 has a tendency to restore its length in its natural state, thereby pushing the extension structure 703, that is, pushing the leveling detection component to the working position.

[0091] It is understandable that the third elastic structure 605 acts on the bending portion 704 of the extension structure 703, and there is a large contact area between the third elastic structure 605 and the bending portion 704, so that the direction of the force transmitted by the third elastic structure 605 to the extension structure 703 conforms to the axial direction of the guide sleeve 601.

[0092] In some examples, the extension structure 703 has a first mounting hole 706 located on the connecting portion 705, and the guide sleeve 601 has a second mounting hole 707 on its side wall. The position of the second mounting hole 707 corresponds to the position of the motion chamber 604 of the electromagnet structure 603. During the installation of the valve core 602, the extension structure 703 is pushed so that the first mounting hole 706 aligns with the second mounting hole 707. The valve core 602 passes through the second mounting hole 707 and the first mounting hole 706 successively, thus entering the interior of the guide sleeve 601. Since the width of the valve core 602 is greater than the inner diameter of the guide sleeve 601, if the valve core 602 is pushed further, the edge of the valve core 602 can be inserted into the opening of the motion chamber 604, so that the extension structure 703 is engaged in the current position, and the leveling detection assembly remains in the standby position.

[0093] like Figure 13 As shown in the figure, this application provides an elevator safety inspection method, which includes:

[0094] When the magnetic scale experiences a tape breakage, it triggers the tape breakage detection switch, which then transmits the tape breakage information to the information processor.

[0095] The traction machine drives the elevator to decelerate and sends fault information to the staff.

[0096] The leveling detection component in the leveling detection device moves to the working position, and the magnetic scale reading head reads the last position of the elevator and the angular velocity of the traction machine. The braking distance of the elevator is determined based on the elevator position and speed information.

[0097] After the elevator stops running, if the leveling detection switch is not triggered, the elevator door remains closed; if the leveling detection switch is triggered, the elevator door opens.

[0098] In some examples, after the magnetic scale 202 experiences a belt breakage, the counterweight component 201 triggers the belt breakage detection switch 301. The belt breakage detection switch 301 is activated, and the relevant information processing module acquires the belt breakage information. Upon acquiring this information, the system controls the traction machine to maintain the elevator's original direction of motion and begins to decelerate to the designated speed. Simultaneously, the first voice announcement inside the car is activated: "Elevator malfunction, self-rescue procedure in progress, please do not panic." At the same time as the first voice announcement, the system sends elevator malfunction information to the elevator inspection department, requesting repair and rescue.

[0099] When the magnetic scale 202 of the elevator experiences a breakage, the electromagnet structure 603 on the guide sleeve 601 is energized, the valve core 602 retracts, and the extension structure 703 extends, bringing the leveling detection component to its working position, preparing to trigger the leveling detection switch 701. Simultaneously with the leveling detection switch 701 in place, the system obtains the elevator's last running position through the reading head of the magnetic scale 202 and reads the elevator's angular velocity using the rotary encoder. Based on the read last elevator position and running speed, the system controls the traction machine to rotate a specific angle. After the traction machine rotates a specific angle, the power is cut off, controlling the elevator to stop after traveling a specific distance, thus achieving the purpose of controlling the car 502 to move a specific displacement. During elevator operation, if the elevator's limit switch is triggered, the elevator first stops, and then a first voice announcement is made to alert the passengers. Simultaneously with the first voice announcement, the system controls the traction machine to reverse a specific angle and then stop its operation.

[0100] After the elevator stops, the motor automatically engages the brake. The system monitors whether the leveling detection switch is triggered. If it is not triggered, the elevator doors will not open, and a second voice announcement will be made: "Automatic elevator rescue has failed. The system has automatically alarmed. Please wait patiently for rescue! During the wait, you can use the rescue button for assistance." If the leveling detection switch is triggered, it means the elevator is at a level position. At this time, the elevator doors will open, and a third voice announcement will be made: "Elevator malfunction, do not use." After repeating this several times, the elevator doors will close. At this time, the elevator cannot be used normally; only passengers trapped in car 502 can open the doors to evacuate car 502. After the third voice announcement is completed, the system automatically sends a rescue success message to the detection department.

[0101] It is worth noting that, theoretically, after a belt breakage occurs in the elevator, the car can be leveled at floor 502 by reading the position information of the magnetic scale 202, calculating the distance to the next stop, and controlling the rotation angle of the traction machine. Adding an extra leveling detection device is to mechanically prevent the elevator from opening its doors in non-opening areas due to errors in the elevator's operating program or other reasons, thus preventing a potential hazard.

[0102] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0103] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. An elevator safety detection system, characterized in that, include: A magnetic scale tape breakage detection device includes a support assembly, a counterweight component, and a tape breakage detection component. The counterweight component is used to connect the magnetic scale, and the tape breakage detection component includes a tape breakage detection switch. An elastic component is disposed between the tape breakage detection component and the support assembly. When the magnetic scale tape breaks, the counterweight component falls, triggering the tape breakage detection switch and driving the tape breakage detection component to move, thereby compressing the elastic component. A leveling detection device includes a leveling detection component, a guide sleeve, and a valve core. The guide sleeve is disposed on the elevator car. The leveling detection component is slidably connected to the guide sleeve. The valve core is movably connected inside the guide sleeve. When the valve core blocks the leveling detection component, the leveling detection component is restricted to a standby position. When the valve core disengages from the leveling detection component, the leveling detection component can slide to a working position. The leveling detection component includes an extension structure with a first mounting hole and a second mounting hole on the side wall of the guide sleeve. The first mounting hole and the second mounting hole are connected, and the valve core is inserted into the guide sleeve along the second mounting hole and the first mounting hole.

2. The elevator safety detection system according to claim 1, characterized in that: The tape breakage detection component also includes a buffer structure, and when the tape breakage detection component moves to its limit position, the bottom of the buffer structure abuts against the support component; The buffer structure is provided with a first limiting part, and the elastic component includes a first elastic structure, which is sleeved on the buffer structure and located between the first limiting part and the support component.

3. The elevator safety detection system according to claim 2, characterized in that: The buffer structure is provided with a second elastic structure, and the support assembly is provided with a sleeve. The sleeve surrounds the outside of the buffer structure, and the second elastic structure can undergo elastic deformation in contact with the sleeve.

4. The elevator safety detection system according to claim 1, characterized in that: The tape breakage detection switch is provided with a protective shell, which is sleeved on the outside of the tape breakage detection switch, and the trigger terminal of the tape breakage detection switch passes through the protective shell.

5. The elevator safety detection system according to claim 1, characterized in that: The support assembly includes a first support structure and a second support structure. The first support structure is provided with a guide hole, which is used to allow the counterweight component to pass through the first support structure. The second support structure and the first support structure form an active space, within which the counterweight component can move.

6. The elevator safety detection system according to claim 1, characterized in that: A driving structure is provided on the side wall of the guide sleeve, and the driving structure drives the valve core to move so that the valve core blocking the leveling detection component disengages from the leveling detection component.

7. The elevator safety detection system according to claim 1, characterized in that: The leveling detection assembly further includes a leveling detection switch, and the extension structure extends from the inside of the guide sleeve and is connected to the leveling detection switch on the outside of the guide sleeve.

8. The elevator safety detection system according to claim 7, characterized in that: The guide sleeve has a third elastic structure inside, and the third elastic structure is located at the closed end of the guide sleeve; When the leveling detection component is in the standby position, the extension structure compresses the third elastic structure, and the third elastic structure can drive the leveling detection component to slide to the working position.

9. An elevator safety inspection method, applied to the elevator safety inspection system as described in any one of claims 1 to 8, characterized in that: When the magnetic scale experiences a tape breakage, it triggers the tape breakage detection switch, which then transmits the tape breakage information to the information processor. The traction machine drives the elevator to decelerate and sends fault information to the staff. The leveling detection component in the leveling detection device moves to the working position, and the magnetic scale reading head reads the last position of the elevator and the angular velocity of the traction machine. The braking distance of the elevator is determined based on the elevator position and speed information. After the elevator stops running, if the leveling detection switch is not triggered, the elevator door remains closed; if the leveling detection switch is triggered, the elevator door opens.

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