Elevator leveling detection device

Abstract

The utility model discloses an elevator leveling detection device. The elevator leveling detection device comprises a shell, a driving mechanism, a limiting mechanism, a leveling detection switch and a telescopic mechanism. The shell is connected with the driving mechanism and the limiting mechanism. The shell is arranged on the outer side of an elevator car. The telescopic mechanism is connected with the driving mechanism, the limiting mechanism and the leveling detection switch. The driving mechanism is electrically connected with the limiting mechanism; the driving mechanism is used for controlling the telescopic mechanism to stretch out and draw back between the interior and the exterior of the shell; the telescopic mechanism is used for driving the leveling detection switch to move between the interior and the exterior of the shell; the leveling detection switch is used for detecting the leveling state of the elevator car; the limiting mechanism is used for limiting and detecting the telescopic process of the telescopic mechanism. The elevator car leveling detection device is used for more reliable automatic leveling detection of the elevator car.

Description

Technical Field

[0001] The utility model belongs to the technical field of elevator equipment, and in particular relates to an elevator leveling detection device. Background Art

[0002] In the prior art, the elevator car leveling detection function is implemented by a magnetic scale.

[0003] The magnetic scale does not have the function of automatically detecting the leveling during installation. Therefore, the first leveling of the elevator requires the elevator installer to manually level and record it. The operation process is time-consuming and labor-intensive, and takes up most of the time for the installation of the magnetic scale, especially for high-rise elevators.

[0004] On the other hand, when people are trapped in an elevator and need rescue, a turntable rescue method is often used to lift or lower the elevator car to move it within the leveling range. At this time, the leveling accuracy of the elevator depends largely on the experience of the rescuers. The magnetic scale cannot give correct leveling information due to the abnormal displacement of the elevator car, and cannot automatically help the rescue to perform fast, accurate and reliable high-quality leveling detection. Summary of the invention

[0005] In order to overcome the defects and shortcomings of the prior art, the purpose of the utility model is to provide an elevator leveling detection device for realizing more reliable automatic leveling detection of the elevator car.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An elevator leveling detection device comprises a housing, a driving mechanism, a limiting mechanism, a leveling detection switch, and a telescopic mechanism;

[0008] The housing is connected to the driving mechanism and the limiting mechanism respectively;

[0009] The telescopic mechanism is respectively connected to the driving mechanism, the limiting mechanism, and the leveling detection switch;

[0010] The driving mechanism is used to control the telescopic mechanism to telescope between the inside and the outside of the shell;

[0011] The telescopic mechanism is used to drive the leveling detection switch to move between the inside and outside of the housing;

[0012] The leveling detection switch is used to detect the leveling status of the elevator car;

[0013] The limiting mechanism is used to limit and detect the extension and retraction of the telescopic mechanism.

[0014] Preferably, the leveling detection switch is electrically connected to the driving mechanism;

[0015] The driving mechanism is used to take action according to the detection result of the leveling state of the elevator car.

[0016] Preferably, the driving mechanism is electrically connected to the limiting mechanism;

[0017] The driving mechanism is used to perform an action according to the detection result of the telescopic process of the telescopic mechanism.

[0018] Preferably, the limit mechanism is provided with a plurality of limit switches;

[0019] The limit switch is electrically connected to the driving mechanism;

[0020] The limit switch is used to detect the position of the telescopic mechanism when it is extending or retracting.

[0021] Preferably, the limiting mechanism is provided with a plurality of limiters;

[0022] The plurality of limiters are respectively in contact with the telescopic mechanism;

[0023] A plurality of limiters are used to limit the telescopic process of the telescopic mechanism.

[0024] Preferably, the housing is provided with an opening;

[0025] The telescopic mechanism and the leveling detection switch are respectively telescoped and moved between the inside and the outside of the shell through the opening.

[0026] Preferably, the driving mechanism includes a driving motor and a telescopic power transmission member;

[0027] The driving motor is connected to the housing and the telescopic power transmission member respectively;

[0028] The driving motor is used to drive the telescopic power transmission member;

[0029] The telescopic power transmission member is used to drive the telescopic mechanism to perform the telescopic process.

[0030] Preferably, the telescopic mechanism includes a telescopic plate and a limit trigger block;

[0031] The telescopic plate is provided with a telescopic power access portion;

[0032] One end of the telescopic plate is connected to the leveling detection switch, and the other end is connected to the limit trigger block;

[0033] The telescopic power access portion is connected to the driving mechanism;

[0034] The driving mechanism drives the telescopic plate to telescope between the inside and the outside of the housing through the telescopic power access part;

[0035] The limit trigger block is used to trigger the limit mechanism to detect the extension and retraction process.

[0036] Preferably, it also includes a compression mechanism;

[0037] The compression mechanism is movably connected to the housing and abuts against the telescopic mechanism;

[0038] The compression mechanism is used to press the telescopic mechanism and the limiting mechanism against each other.

[0039] Further, the compression mechanism includes a plurality of compactors;

[0040] The clamp comprises a mounting seat, a compression spring, a clamping roller, a clamping roller sleeve, and a ball bearing;

[0041] The mounting seat is movably connected to the housing;

[0042] The two ends of the compression spring are respectively abutted against and / or fixedly connected to the mounting seat and the housing;

[0043] The pressing roller is nested and connected with the pressing roller sleeve;

[0044] The ball bearing is movably connected to the pressing roller sleeve and fixedly connected to the mounting seat.

[0045] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0046] The utility model performs automatic leveling detection through the cooperation of a driving mechanism, a leveling detection switch and a telescopic mechanism. Compared with the prior art, it avoids the time-consuming and labor-intensive shortcoming of manual leveling during the installation of a magnetic scale. It can provide fast, accurate and reliable high-quality leveling detection in elevator failure rescue, and solves the defect that the magnetic scale cannot provide correct leveling information when the elevator car is abnormally displaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a structural perspective view of one embodiment of the elevator leveling detection device of the utility model;

[0048] Figure 2 for Figure 1 The internal structure of the side view;

[0049] Figure 3 for Figure 2 A side view of the second clamp of the middle clamping mechanism;

[0050] Figure 4 for Figure 3 A cross-sectional view of the structure of the pressing rolling element of the second pressing device;

[0051] Figure 5 for Figure 4 The structure diagram of the pressing base of the ball bearing of the pressing rolling element;

[0052] Figure 6 for Figure 4 The structure diagram of the compression bearing shaft of the ball bearing of the compression rolling element;

[0053] Figure 7 for Figure 4 Structural diagram of the clamping end cover of the ball bearing of the middle clamping rolling element;

[0054] Figure 8 for Figure 2 A three-dimensional diagram of the first stopper of the middle stop structure;

[0055] Fig. 9 for Figure 5 A structural cross-sectional view of the first stopper;

[0056] Figure 1-6 1-housing, 11-first housing, 12-second housing, 2-driving mechanism, 21-stepping motor, 22-telescopic power transmission member, 3-limiting mechanism, 31-detection module, 311-first limit switch, 312-second limit switch, 32-guiding module, 321-first limiter, 3211-limiting roller, 3212-limiting roller sleeve, 3213-limiter base, 3214-limiter bearing shaft, 3215-limiter ball, 3216-limiter bearing shaft end cover, 322-second limiter, 323-third limiter, 324-fourth limiter, 325-fifth limiter, 326-sixth limiter, 4 - clamping mechanism, 41-first clamp, 42-second clamp, 421-clamping roller, 4211-clamping roller, 4212-clamping roller sleeve, 4213-clamping base, 4214-bearing shaft, 4215-ball, 4216-end cover, 4217-accommodating chamber, 422-mounting seat, 423-clamping roller sleeve bolt, 424-housing sleeve nut, 425-housing sleeve bolt, 426-compression spring; 43-third clamp, 5-leveling detection switch, 51-detection sensor, 52-leveling trigger plate, 6-telescopic mechanism, 61-telescopic plate, 611-telescopic power access part, 62-limit trigger block. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0058] It should be noted that the directions or positional relationships indicated by terms such as “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present disclosure and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present disclosure.

[0059] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance. Similarly, words such as "one", "an", or "the" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "electrically connected" or "connected" and the like are not limited to physical or mechanical electrical connections, but may include electrical connections, whether direct or indirect. Example

[0060] like Figures 1 to 9 This embodiment provides an elevator leveling detection device, which is arranged on the outer surface of the elevator car; the position of the elevator leveling detection device corresponds to the leveling identification object on the elevator door, and when the elevator car drives the elevator leveling detection device to the position corresponding to the leveling identification object, the elevator leveling detection device interacts with the leveling identification object to realize the detection of the elevator car leveling.

[0061] An elevator leveling detection device of the present embodiment includes a housing 1, a driving mechanism 2, a limiting mechanism 3, a pressing mechanism 4, a leveling detection switch 5, and a telescopic mechanism 6.

[0062] The housing 1 includes a first housing 11 and a second housing 12; the driving mechanism 2 includes a driving motor 21 and a telescopic power transmission member 22; the limiting mechanism 3 includes a detection module 31 and a guiding module 32; the detection module 31 includes a first limit switch 311 and a second limit switch 312; the guiding module 32 includes a first limiter 321, a second limiter 322, a third limiter 323, a fourth limiter 324, a fifth limiter 325 and a sixth limiter 326; the first limiter 321 includes a limiting roller 3211, a limiting roller sleeve 3212, a limiting base 3213, a limiting bearing shaft 3214, a limiting ball 3215 and a limiting bearing shaft end cover 3216; the clamping mechanism 4 includes a first clamping 41, a second clamp 42, and a third clamp 43; the second clamp 42 includes a clamping roller 421, a mounting seat 422, a clamping roller sleeve bolt 423, a shell sleeve nut 424, a shell sleeve bolt 425, and a compression spring 426; the clamping roller 421 includes a clamping roller 4211, a clamping roller sleeve 4212, a clamping base 4213, a clamping bearing shaft 4214, a clamping ball 4215, a clamping end cover 4216, and an accommodating chamber 4217; the leveling detection switch 5 includes a detection sensor 51 and a leveling trigger plate 52; the telescopic mechanism 6 includes a telescopic plate 61 and a limit trigger block 62, wherein the telescopic plate 61 is provided with a telescopic power access portion 611 connected to the telescopic power transmission member 22.

[0063] The outer shell 1 is connected to the driving mechanism 2, the limiting mechanism 3, and the clamping mechanism 4 respectively, and the outer shell 1 is arranged on the outside of the elevator car; the telescopic mechanism 6 is connected to the driving mechanism 2 and the leveling detection switch 5 respectively, and the telescopic mechanism 6 is respectively abutted against the limiting mechanism 3 and the clamping mechanism 4, and the driving mechanism 2 is electrically connected to the limiting mechanism 3; the driving mechanism 2 is used to control the process of telescopic mechanism 6 to extend and retract between the inside and outside of the outer shell 1; the telescopic mechanism 6 is used to drive the leveling detection switch 5 to move between the inside and outside of the outer shell 1; the leveling detection switch 5 is used to detect the leveling state of the elevator car; the limiting mechanism 3 is used to limit and detect the telescopic mechanism 6 during the extension and retraction process; the clamping mechanism 4 is used to press the telescopic mechanism 6 and the limiting mechanism 3 against each other.

[0064] Combination Figure 1 , Figure 2 In this embodiment, preferably, the shape of the housing 1 is approximately a hollow rectangular body, one bottom surface of the rectangular body is an opening, and the leveling detection switch 5 is arranged at a position close to the bottom surface opening in the housing 1, and the leveling detection switch 5 moves between the inside and the outside of the housing 1 through the bottom surface opening.

[0065] The first shell 11 and the second shell 12 of the housing 1 are connected to each other in an interlocking manner. In this embodiment, the first shell 11 and the second shell 12 are preferably in the shape of a slot body, and the slots of the two are relatively interlocked and assembled into the housing 1. The driving mechanism 2, the limiting mechanism 3, and the pressing mechanism 4 are respectively fixedly connected and / or movably connected to the first shell 11 and / or the second shell 12.

[0066] The driving motor 21 of the driving mechanism 2 is fixedly connected to one side of the housing 1, and the telescopic power transmission member 22 is arranged inside the housing 1. The motor shaft of the driving motor 21 passes through the housing 1 and is detachably connected to the telescopic power transmission member 22 at the end. The driving motor 21 is electrically connected to the limit mechanism 3, and the telescopic power transmission member 22 abuts against the telescopic mechanism 6. The driving motor 21 is used to drive the telescopic power transmission member 22, and the telescopic power transmission member 22 is used to control the telescopic process of the telescopic mechanism 6 by providing power through the mutual connection with the telescopic mechanism 6. In this embodiment, the specific type of the driving motor 21 is preferably a stepping motor.

[0067] In this embodiment, the telescopic power transmission member 22 is preferably a gear, and the telescopic mechanism 6 is provided with a rack portion that is meshed and connected with the telescopic power transmission member 22. In other embodiments, the telescopic power transmission member 22 and the telescopic mechanism 6 can also be connected by a chain transmission, a belt transmission, or a gear bearing group transmission to achieve the telescopic process of the telescopic mechanism 6 driven by the telescopic power transmission member 22.

[0068] In this embodiment, the telescopic plate 61 of the telescopic mechanism 6 is preferably a long strip part, one end of the long strip telescopic plate 61 is close to the opening of the shell 1, and the other end is relatively far away from the opening of the shell 1, and the length direction of the telescopic plate 61 is consistent with the length direction of the shell 1 of the rectangular body. A side surface of the middle part of the telescopic plate 61 is provided with a rack portion at the corresponding area position of the telescopic power transmission member 22, and the rack portion is used to mesh with the telescopic power transmission member 22 of the gear structure to transmit power, and combined with the drive motor 21 to control the displacement of the telescopic mechanism 6 in the length direction during the telescopic process. The rack portion is the telescopic power access portion 611 in the telescopic plate 61. In other embodiments, the middle part of the telescopic plate 61 at the corresponding area position of the telescopic power transmission member 22 can also be correspondingly set to a chain transmission, a belt transmission, etc.

[0069] In this embodiment, the telescopic plate 61 is further preferably arranged on the central axis of the rectangular shell 1, and the leveling detection switch 5 is connected to one end of the telescopic plate 61 close to the opening of the shell 1, and the telescopic plate 61 is used to drive the leveling detection switch 5 to move between the inside and the outside of the shell 1.

[0070] In this embodiment, the limit trigger block 62 of the telescopic mechanism 6 is preferably provided at the other end of the telescopic plate 61 relatively far from the opening of the housing 1, and the limit trigger block 62 is used to trigger the limit mechanism 3 to detect the position of the telescopic mechanism 6 during the telescopic process. The limit trigger block 62 is in the shape of a geometric body of a four-sided step, and the oblique side of the four-sided step faces the position corresponding to the abutment with the limit mechanism 3.

[0071] In this embodiment, the leveling detection switch 5 is preferably a mechanical trigger switch that can contact the leveling mark object on the elevator door. In other embodiments, the leveling detection switch 5 can also be an inductive switch that does not need to contact the leveling mark object on the elevator door, such as a magnetic induction switch, an infrared ranging switch, an acoustic ranging switch, an image recognition switch, etc. In this embodiment, it is further preferred that the second shell 12 of the housing 1 is provided with a baffle at a position farther away from the opening of the housing 1 relative to the leveling detection switch 5, and the baffle divides the housing 1 into a cavity close to the side of the opening of the housing 1 and a cavity relatively far from the side of the opening of the housing 1, and the leveling detection switch 5 is provided in the cavity close to the side of the opening of the housing 1, and the limit trigger block 62 is provided in the cavity relatively far from the side of the opening of the housing 1. In this embodiment, it is further preferred that the leveling detection switch 5 is electrically connected to the drive motor 21, and after detecting the leveling signal, the leveling detection switch 5 gives an electrical signal to the drive motor 21, so that the drive motor 21 uses the telescopic power transmission member 22 and the telescopic plate 61 to drive the leveling detection switch 5 back to the inside of the housing 1.

[0072] In the preferred leveling detection switch 5 of the present embodiment, the detection sensor 51 is fixedly or detachably connected to one end of the telescopic plate 61 close to the opening of the outer shell 1, and the leveling trigger plate 52 is movably connected to the side of the detection sensor 51 facing the leveling identification object on the elevator floor door. When the leveling trigger plate 52 is in contact with the leveling identification object on the elevator floor door, the leveling trigger plate 52 will trigger the detection sensor 51 to generate a corresponding electrical signal, thereby realizing the function of detecting whether the elevator car is in a leveling state.

[0073] Combination Figure 1 , Figure 2 , Figure 8 , Fig. 9 As shown. In this embodiment, preferably, the first limit switch 311 and the second limit switch 312 of the detection module 31 in the limit mechanism 3 are both mechanical trigger switches. In other embodiments, the first limit switch 311 and the second limit switch 312 can also respectively adopt non-contact inductive switches, such as one or more of magnetic induction, infrared ranging, sonic ranging, and image recognition.

[0074] The first limit switch 311 and the second limit switch 312 are respectively fixedly connected or detachably connected to one of the side surfaces of the housing 1. The parts for the triggering function of the first limit switch 311 and the second limit switch 312 of the mechanical trigger type are respectively arranged in the cavity of the housing 1 on the side relatively far away from the opening, and are used to abut against the limit trigger block 62 to detect the position of the telescopic mechanism 6 during the telescopic process. After the limit trigger block 62 abuts against the parts of the triggering function, it will trigger the first limit switch 311 or the second limit switch 312 to generate an electrical signal, thereby realizing the position judgment function of the other end of the telescopic plate 61 relatively far away from the opening of the housing 1 to reach the corresponding first limit switch 311 or the corresponding second limit switch 312. The first limit switch 311 is arranged at the middle of the housing 1, and the second limit switch 312 is arranged at the end of one side of the housing 1 relatively far away from the opening of the housing 1. In this embodiment, it is further preferred that the first limit switch 311 and the second limit switch 312 are both arranged on the same side of the housing 1 as the drive motor 21. The compression mechanism 4 and the telescopic power transmission member 22 are respectively arranged in the area between the detection sensor 51 and the first limit switch 311. In this embodiment, the first limit switch 311 and the second limit switch 312 are respectively electrically connected to the drive motor 21. After the first limit switch 311 and the second limit switch 312 are triggered, they both give a signal to the drive motor 21 to stop the drive motor 21 from continuing to move in the current rotation direction, so as to prevent the telescopic plate 61 from exceeding the action range set in the length direction.

[0075] The guide module 32 is used to limit the telescopic process of the telescopic mechanism 6, and guide the telescopic plate 61 to telescope along the length direction at the position of the central axis of the shell 1 and its extension line. The first stopper 321, the second stopper 322, the third stopper 323, the fourth stopper 324, the fifth stopper 325, and the sixth stopper 326 of the guide module 32 are all arranged in the cavity of the shell 1 relatively far away from the opening side, and are respectively fixedly connected or detachably connected to the shell 1. The first stopper 321, the second stopper 322, the third stopper 323, the fourth stopper 324, the fifth stopper 325, and the sixth stopper 326 are arranged in sequence from a position relatively close to the opening of the shell 1. The first limiter 321, the fourth limiter 324, the fifth limiter 325, and the sixth limiter 326 are all arranged at a position where they abut against one side of the telescopic plate 61 where the rack part is located, so as to support and limit the telescopic plate 61; the second limiter 322 and the third limiter 323 are all arranged at a position where they abut against another side perpendicular to the side where the rack part of the telescopic plate 61 is located, so as to guide and limit the telescopic plate 61. The telescopic power transmission member 22 is arranged at the midpoint of the second limiter 322 and the third limiter 323. The first limit switch 311 and the fourth limiter 324 are arranged on opposite sides of the telescopic plate 61 in a positive alignment.

[0076] The first stopper 321 , the second stopper 322 , the third stopper 323 , the fourth stopper 324 , the fifth stopper 325 , and the sixth stopper 326 all have the same shape and structure, and the only difference is that the connection positions of the respective stoppers to the housing 1 are different.

[0077] A portion of the clamping structure 4 is disposed on both sides of the telescopic plate 61 opposite to the first limiter 321 , the fourth limiter 324 , the fifth limiter 325 , and the sixth limiter 326 , and another portion of the clamping structure 4 is disposed on the other two sides of the telescopic plate 61 opposite to the second limiter 322 and the third limiter 323 .

[0078] The first limiter 321 is a symmetrical structure, which is composed of a limit roller 3211, a limit roller sleeve 3212, and two limit ball bearings with the same structure connected in sequence. The limit roller 3211 abuts against the telescopic plate 61, and the limit roller 3211 is sleeved on the outer surface of the middle part of the limit roller sleeve 3212. The two ends of the limit roller sleeve 3212 are respectively connected to a limit ball bearing. The limit ball bearing at one end of the limit roller sleeve 3212 includes a limiter base 3213, a limiter bearing shaft 3214, a limiter ball 3215, and a limiter bearing shaft end cover 3216. The limiter base 3213 is composed of a circular bottom and an annular enclosure that are perpendicular to each other. The bottom is fixedly connected or detachably connected to the housing 1, and the circular bottom and the annular enclosure are mutually enclosed to accommodate the limiter bearing shaft 3214 and the limiter ball 3215. The stopper bearing shaft 3214 is composed of a mutually perpendicular annular base and a cylindrical roller. The annular base is nested in the accommodation space enclosed by the circular bottom and the annular enclosure. The cylindrical roller extends to the outside of the stopper base 3213 and is engaged with one end of the stopper roller sleeve 3212. The stopper ball 3215 includes a plurality of small round balls, which are arranged between the annular base and the annular enclosure for rolling, so that the annular base can roll on the stopper base 3213. The stopper bearing shaft end cover 3216 is a hollow flat cylindrical cover body with a through hole on the bottom surface. The through hole on the bottom surface passes through the cylindrical roller. The side surface is nested outside the annular enclosure. The rest of the bottom surface covers the annular base to prevent it from escaping from the accommodation space enclosed by the circular bottom and the annular enclosure.

[0079] Combination Figures 1 to 7As shown. The first clamp 41, the second clamp 42, and the third clamp 43 of the clamping mechanism 4 have the same shape and structure, and the only difference is that the positions at which they are installed on the housing 1 are different. The first clamp 41, the second clamp 42, and the third clamp 43 are respectively movably connected to the housing 1. The first clamp 41, the second clamp 42, and the third clamp 43 are all arranged in a cavity on the side of the housing 1 that is relatively far away from the opening, and are arranged in sequence from a position relatively close to the opening of the housing 1. The first clamp 41 and the first limiter 321 are aligned and arranged on opposite sides of the telescopic plate 61, the second clamp 42 and the telescopic power transmission member 22 are aligned and arranged on opposite sides of the telescopic plate 61, and the third clamp 43 and the fourth limiter 324 are offset from each other and arranged on opposite sides of the telescopic plate 61.

[0080] In the second clamp 42, the mounting seat 422 is a short plate with a convex side at both ends and a straight shape in the middle. In this embodiment, through holes or threaded through holes are set at both ends of the convexity of the mounting seat 422. The two ends of the clamping roller 421 are detachably connected to the two ends of the convexity of the mounting seat 422. In this embodiment, the detachable connection of one end is realized by the threaded connection of the clamping roller sleeve bolt 423, and the detachable connection of the other end can be realized by the clamping roller sleeve bolt or by other methods; in this embodiment, a sliding hole is further provided on the housing 1 at a position corresponding to the clamping roller sleeve bolt 423, and the clamping roller sleeve bolt 423 passes through the sliding hole so that the housing 1 and the mounting seat 422 can slide relative to each other. The middle part of the mounting seat 422 is fixedly connected to the side facing away from the pressing rolling element 421. The housing sleeve bolt 425 is a smooth round rod at a portion close to the connection position with the middle part of the mounting seat 422, and a threaded rod at a portion relatively far from the connection position with the middle part of the mounting seat 422. The threaded rod of the housing sleeve bolt 425 passes through the through hole provided on the housing 1 and is provided outside the housing 1. The housing sleeve nut 424 is threadedly connected with the threaded rod and is provided on the outer surface of the housing 1. The compression spring 426 is sleeved on the smooth round rod, one end of the spring 426 abuts against the connection position between the housing sleeve bolt 425 and the mounting seat 422, and the other end of the compression spring 426 abuts against the inner wall of the housing 1. In other embodiments, the compression spring 426 can also be fixedly connected to the housing 1 and the mounting seat 422, respectively.

[0081] In this embodiment, the mounting seat 422 is preferably provided with another structure symmetrical with the housing sleeve nut 424, the housing sleeve bolt 425, and the compression spring 426. In other embodiments, other spring return parts may also be used to form a structure with the same function.

[0082] The pressing roller 4211 of the pressing roller 421 is sleeved on the middle outer surface of the pressing roller sleeve 4212, and the two ends of the pressing roller sleeve 4212 are respectively connected to two other ball bearings with the same structure. In the ball bearing connected to one end of the pressing roller sleeve 4212, a short tube portion is provided in the middle of the circular bottom of the pressing base 4213, which is threadedly connected to the pressing roller sleeve bolt 423, and the outer periphery of the short tube portion and the circular enclosure portion enclose a receiving cavity 4217 for placing the pressing ball 4215 and the pressing bearing 4214. A sleeve connecting shaft engaged with the short tube portion is provided at the central position of the circular base of the pressing bearing shaft 4214. The circular base of the pressing bearing shaft 4214 and the pressing ball 4215 composed of a plurality of small round balls are provided inside the accommodating chamber 4217. The sleeve connecting shaft of the pressing bearing shaft 4214 is connected to one end of the pressing roller sleeve 4212. The pressing end cover 4216 is a hollow flat cylindrical cover body with a through hole on the bottom surface. The through hole on the bottom surface passes through the sleeve connecting shaft. The side surface is nested outside the circular enclosure. The rest of the bottom surface covers the circular base and the pressing ball 4215 to prevent the two from escaping from the accommodating chamber 4217.

[0083] When the present embodiment is in operation, after the driving motor 21 is energized and receives a signal, it starts to rotate and drive the telescopic power transmission member 22 in a specified direction, and the telescopic power transmission member 22 drives the telescopic plate 61 to move forward a certain displacement until the leveling detection switch 5 is pushed to the set position. When the elevator car goes up or down to the leveling position, the leveling identification object on the elevator door will trigger the leveling detection switch 5, and the elevator car will stop going up or down to achieve the effect of elevator leveling. In the scenario where the elevator magnetic scale is broken and the elevator car needs to be rescued, the leveling detection switch 5 collects the leveling information. When the elevator car moves slowly to the lower limit position of the elevator door, the drive motor 21 receives a signal to enter the leveling state, pushes the telescopic plate 61 to push the leveling detection switch 5 to the set position outside the shell 1, and then stops rotating; the elevator car triggers the leveling detection switch 5 once when it is in the leveling position, and the leveling data information is recorded once. After the elevator car moves slowly to the upper limit position of the elevator door, the drive motor 21 receives a signal to leave the leveling state, and retracts the leveling detection switch 5 into the shell 1; the process does not require human intervention, which is conducive to improving rescue efficiency.

[0084] Compared with the prior art, this embodiment has the following beneficial effects:

[0085] Automated leveling detection is performed through the cooperation of the driving mechanism 2, the leveling detection switch 5 and the telescopic mechanism 6. Compared with the prior art, the disadvantage of time-consuming and labor-intensive manual leveling during the installation of the magnetic scale is avoided, and fast, accurate and reliable high-quality leveling detection can be provided in elevator fault rescue, solving the defect that the magnetic scale cannot provide correct leveling information when the elevator car is abnormally displaced.

[0086] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An elevator leveling detection device, characterized in that: It includes a housing, a driving mechanism, a limit mechanism, a leveling detection switch, and a telescopic mechanism; The housing is connected to the driving mechanism and the limiting mechanism respectively; The telescopic mechanism is respectively connected to the driving mechanism, the limiting mechanism, and the leveling detection switch; The driving mechanism is used to control the telescopic mechanism to telescope between the inside and the outside of the shell; The telescopic mechanism is used to drive the leveling detection switch to move between the inside and outside of the housing; The leveling detection switch is used to detect the leveling status of the elevator car; The limiting mechanism is used to limit and detect the extension and retraction of the telescopic mechanism.

2. The elevator leveling detection device according to claim 1, characterized in that: The leveling detection switch is electrically connected to the driving mechanism; The driving mechanism is used to take action according to the detection result of the leveling state of the elevator car.

3. The elevator leveling detection device according to claim 1, characterized in that: The driving mechanism is electrically connected to the limiting mechanism; The driving mechanism is used to perform an action according to the detection result of the telescopic process of the telescopic mechanism.

4. The elevator leveling detection device according to claim 1, characterized in that: The limit mechanism is provided with a plurality of limit switches; The limit switch is electrically connected to the driving mechanism; The limit switch is used to detect the position of the telescopic mechanism when it is extending or retracting.

5. The elevator leveling detection device according to claim 1, characterized in that: The limiting mechanism is provided with a plurality of limiters; The plurality of limiters are respectively in contact with the telescopic mechanism; A plurality of limiters are used to limit the telescopic process of the telescopic mechanism.

6. The elevator leveling detection device according to claim 1, characterized in that: The shell is provided with an opening; The telescopic mechanism and the leveling detection switch are respectively telescoped and moved between the inside and the outside of the shell through the opening.

7. The elevator leveling detection device according to claim 1, characterized in that: The driving mechanism includes a driving motor and a telescopic power transmission member; The driving motor is connected to the housing and the telescopic power transmission member respectively; The driving motor is used to drive the telescopic power transmission member; The telescopic power transmission member is used to drive the telescopic mechanism to perform the telescopic process.

8. The elevator leveling detection device according to claim 1, characterized in that: The telescopic mechanism includes a telescopic plate and a limit trigger block; The telescopic plate is provided with a telescopic power access portion; One end of the telescopic plate is connected to the leveling detection switch, and the other end is connected to the limit trigger block; The telescopic power access portion is connected to the driving mechanism; The driving mechanism drives the telescopic plate to telescope between the inside and the outside of the housing through the telescopic power access part; The limit trigger block is used to trigger the limit mechanism to detect the extension and retraction process.

9. The elevator leveling detection device according to claim 1, characterized in that: Also included is a compression mechanism; The compression mechanism is movably connected to the housing and abuts against the telescopic mechanism; The compression mechanism is used to press the telescopic mechanism and the limiting mechanism against each other.

10. The elevator leveling detection device according to claim 9, characterized in that: The compression mechanism includes a plurality of compactors; The clamp comprises a mounting seat, a compression spring, a clamping roller, a clamping roller sleeve, and a ball bearing; The mounting seat is movably connected to the housing; The two ends of the compression spring are respectively abutted against and / or fixedly connected to the mounting seat and the housing; The pressing roller is nested and connected with the pressing roller sleeve; The ball bearing is movably connected to the pressing roller sleeve and fixedly connected to the mounting seat.

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