CN113716418B - Elevator hoistway surveying device and method - Google Patents

Abstract

The present invention relates to an elevator hoistway surveying device and a surveying method, the elevator hoistway surveying device includes: the bearing frame is used for guiding and matching with a lofting line in the elevator shaft; the electric rope winder is arranged on the bearing frame and connected with a lifting rope, and the lifting rope is used for being fixedly connected with a top sample line frame preset at the top of the elevator shaft; and a lidar is provided on the carrier and is used for surveying the elevator shaft. The elevator well investigation device of this scheme can the full automatization accomplish the operation of surveying to the elevator well, and whole journey need not the manpower participation, has fundamentally alleviateed workman intensity of labour, has eliminated the safety hidden danger of falling the well at elevator well eminence operation, simultaneously along with the in-process that descends to the elevator well bottom from elevator well top, the laser radar is accomplished the survey work fast, surveys time consuming short, efficient, and can generate the survey data of high accuracy and be used for forming elevator well measurement model to can carry out scientific effectual evaluation to elevator well construction quality.

Description

Elevator hoistway surveying device and method

Technical Field

The invention relates to the technical field of elevator hoistway surveying, in particular to an elevator hoistway surveying device and an elevator hoistway surveying method.

Background

Conventionally, before an elevator device is installed, an elevator manufacturer firstly checks and accepts the construction quality of the elevator hoistway, and the specific mode of checking and accepting is to survey the construction quality of the elevator hoistway so as to confirm whether various indexes of the elevator hoistway meet the installation requirement of the elevator device, wherein the surveying content comprises, but is not limited to, measuring the clear width, the clear depth, the clear height, the pit depth, the top layer height, the height and the interval (or the gap between embedded parts for installing guide rails) of the elevator hoistway, the length and width of a door opening, particularly the position size of a central line of the door opening, the perpendicularity of the elevator hoistway and the like.

However, the current industry mainly adopts manual investigation to the elevator shaft, so that the operation is long, the investigation efficiency is low, the manual labor intensity is high, the personnel safety cannot be ensured, and the potential safety hazard of falling into the elevator shaft from high altitude exists.

Disclosure of Invention

Based on the above, it is necessary to provide an elevator hoistway surveying device and a surveying method, which aim to solve the problems of long time consumption, low efficiency, high labor intensity and potential safety hazard of falling into the elevator hoistway during manual surveying in the prior art.

In one aspect, the present application provides an elevator hoistway surveying device comprising:

the bearing frame is used for guiding and matching with a lofting line in the elevator shaft;

the electric rope winder is arranged on the bearing frame and connected with a lifting rope, the electric rope winder is used for controlling winding and unwinding of the lifting rope, and the lifting rope is used for being fixedly connected with a top sample line frame preset at the top of the elevator shaft; and

and the laser radar is arranged on the bearing frame and is used for surveying the elevator hoistway.

The elevator shaft surveying device of the scheme is applied to occasions for surveying the construction quality of the elevator shaft after the construction of the elevator shaft is completed and before the elevator shaft is delivered to use. Specifically, when in use, the lifting rope is connected and fixed with a top sample line frame at the top of the elevator shaft, and then the bearing frame is assembled with a sample line in the elevator shaft to complete the installation of the elevator shaft surveying device; immediately releasing the lifting rope by the electric rope winder, and beginning the bearing frame to descend from the top of the elevator shaft to the bottom of the elevator shaft, and carrying out survey operation on the elevator shaft by the laser radar; when the bearing frame reaches the bottom of the elevator shaft, acquiring survey data in the laser radar and uploading the survey data to the data processor; the data processor analyzes and processes the survey data to generate an elevator well measurement model, and the construction quality of the elevator well is checked according to the elevator well measurement model. Compared with the traditional manual surveying operation mode, the elevator shaft surveying device of the scheme can fully automatically complete the surveying operation of an elevator shaft, no human participation is needed in the whole process, the labor intensity of workers is fundamentally reduced, the potential safety hazard of falling in the operation of the elevator shaft is eliminated, meanwhile, along with the falling process from the top of the elevator shaft to the bottom of the elevator shaft, the laser radar rapidly completes the surveying operation, the surveying time is short, the efficiency is high, and high-precision surveying data can be generated to form an elevator shaft measuring model, so that the construction quality of the elevator shaft can be scientifically and effectively evaluated.

The technical scheme of the application is further described below:

in one embodiment, the bearing frame comprises a frame body and at least two adjustable telescopic arms, wherein the at least two adjustable telescopic arms are respectively movably arranged on two opposite sides of the frame body, and the adjustable telescopic arms are provided with scale parts.

In one embodiment, the bearing frame further comprises a lock nut, the frame body is provided with a sliding hole, the adjustable telescopic arm is inserted into the sliding hole in a sliding mode, the lock nut is in threaded connection with the frame body and is arranged close to an orifice of the sliding hole, and the lock nut is used for locking and fixing the adjustable telescopic arm after the length of the adjustable telescopic arm is adjusted.

In one embodiment, the end portion of the adjustable telescopic arm, which is far away from the frame main body, is provided with a mounting box, a first wire block and a second wire block are vertically overlapped in the mounting box, the first wire block is provided with a first wire passing groove, the second wire block is provided with a second wire passing groove, the notch of the first wire passing groove is opposite to the bottom of the second wire passing groove, the notch of the second wire passing groove is opposite to the bottom of the first wire passing groove, the first wire passing groove and the second wire passing groove are matched to form a wire guide, and the wire guide is used for enabling the lofting wire to pass through.

In one embodiment, the box wall of the mounting box is convexly provided with an anti-rotation convex body, the outer walls of the first wire block and the second wire block are concavely provided with anti-rotation grooves, and the anti-rotation convex body is inserted into the anti-rotation grooves;

the box opening of the mounting box is covered with a pressing plate.

In one embodiment, the electric rope winder comprises a rope winding box, a motor, a rope winding shaft, a worm wheel and a worm, wherein the motor is arranged on the rope winding box and in driving connection with the worm, the rope winding shaft is rotatably arranged in the rope winding box and fixedly connected with the worm wheel, the worm wheel is in meshed transmission fit with the worm, and the rope winding shaft is fixedly connected with one end of the lifting rope.

In one embodiment, the elevator hoistway surveying device further comprises a safety landing assembly comprising a rope breakage detection switch and a parachute, wherein the rope breakage detection switch is arranged on the electric rope winder and matched with the lifting rope, and the parachute is arranged on the bearing frame and electrically connected with the rope breakage detection switch.

In one embodiment, the elevator hoistway surveying device further comprises a limit switch arranged at the bottom of the bearing frame, and the limit switch is used for triggering and matching with a bottom sample line frame preset at the bottom of the elevator hoistway.

In one embodiment, the hoistway surveying device further comprises a buffer assembly for being disposed on the bottom sample frame and capable of buffering the carrier.

In another aspect, the present application also provides a surveying method operating with an elevator hoistway surveying device as described above, comprising the steps of:

assembling the bearing frame with a lofting line in an elevator shaft;

the electric rope winder releases the lifting rope, the bearing frame starts to descend from the top of the elevator shaft to the bottom of the elevator shaft, and the laser radar surveys the elevator shaft;

the bearing frame reaches the bottom of the elevator shaft, and survey data in the laser radar are acquired and uploaded to a data processor;

and the data processor analyzes and processes the survey data to generate an elevator well measurement model, and the construction quality of the elevator well is checked according to the elevator well measurement model.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a construction in which a hoistway surveying device according to an embodiment of the present invention is installed in a hoistway;

fig. 2 is a schematic view of an elevator hoistway surveying device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a carrier according to the present invention;

FIG. 4 is a schematic top view of FIG. 3;

FIG. 5 is a schematic view of an electric rope winder according to an embodiment of the invention;

FIG. 6 is a schematic diagram of the explosive structure of FIG. 5;

fig. 7 is a flow chart of the steps of a method of surveying an elevator hoistway surveying device according to the present invention.

Reference numerals illustrate:

100. a hoistway surveying device; 10. a carrier; 11. a rack main body; 12. an adjustable telescopic arm; 13. a lock nut; 14. a scale section; 15. a mounting box; 151. an anti-rotation convex body; 152. an anti-rotation groove; 16. a first wire block; 161. a first wire passing groove; 17. a second wire block; 171. a second wire passing groove; 18. a pressing plate; 20. an electric rope winder; 21. a rope winding box; 22. a motor; 23. a rope winding shaft; 24. a worm wheel; 25. a worm; 30. a lifting rope; 40. a laser radar; 50. a battery; 60. an electric control box; 70. a safety landing assembly; 71. a rope breakage detection switch; 72. a parachute; 80. a limit switch; 90. a buffer assembly; 200. an elevator hoistway; 300. a top sample line frame; 400. a bottom sample line frame; 500. and (5) a lofting line.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

As shown in fig. 1, a schematic diagram of a hoistway surveying device 100 according to an embodiment of the present application is installed in a hoistway 200. The elevator hoistway 200 is a place and a carrier where the elevator equipment is installed and operated, and before the elevator equipment is installed, the elevator hoistway 200 can be surveyed by the elevator hoistway surveying device 100, so that whether each dimension parameter of the elevator hoistway 200 is the same as a design standard value is verified, and the normal installation and operation of the following elevator equipment are ensured.

In addition, a loft device is also shown in fig. 1. Specifically, the loft device includes a top sample line rack 300, a bottom sample line rack 400, and a loft line 500. The top sample line frame 300 is mounted on the sidewall of the elevator shaft 200 near the top of the shaft, and is used for connecting and fixing one end of the sample line 500. The bottom sample line frame 400 is mounted on the sidewall of the elevator shaft 200 near the bottom of the elevator shaft 200, and is used for being connected and fixed with the other end of the sample line 500. Such that the loft line 500 is capable of loft measurements of structures within the elevator hoistway 200, such as a door opening.

With continued reference to fig. 2, the hoistway surveying device 100 illustratively includes: a carriage 10, an electric rope reel 20 and a laser radar 40. The carrier 10 is the carrier body of the hoistway surveying device 100 for loading and securing the electric rope reel 20 and the lidar 40, providing the device with better structural integrity and structural performance. The electric rope reel 20 plays a role as a power source of the hoistway surveying device 100 for realizing the ascending or descending movement of the device in the hoistway 200 to assist the laser radar 40 in performing the measurement of parameters such as dimensions and the like for the whole hoistway 200. In addition, the hoistway surveying device 100 further includes a battery 50 and an electric cabinet 60. The battery 50 is electrically connected with the electric cabinet 60, and the electric cabinet 60 is electrically connected with the electric rope winder 20 and the laser radar 40 for controlling the automatic work of the electric rope winder 20 and the laser radar 40.

In particular, the carriage 10 is adapted for guided engagement with a load line 500 within the elevator hoistway 200. Because the lofting line 500 is in a vertical and straight state, and the two ends are respectively fixed by the top sample line frame 300 and the bottom sample line frame 400, the load frame 10 in the ascending or descending process can be guided and stabilized, and the measurement accuracy of the laser radar 40 is ensured.

The electric rope winder 20 is arranged on the bearing frame 10 and is connected with a lifting rope 30, the electric rope winder 20 is used for controlling winding and unwinding of the lifting rope 30, and the lifting rope 30 is used for being fixedly connected with a top sample line frame 300 preset at the top of the elevator hoistway 200; the lidar 40 is arranged on the load bearing frame 10 and is used for surveying the elevator shaft 200.

In summary, implementing the technical scheme of the embodiment has the following beneficial effects: the hoistway surveying device 100 according to the above-described embodiment is applied to a case where the construction quality of the hoistway 200 is surveyed after the completion of the construction of the hoistway 200 and before the delivery to the use. Specifically, in use, the lifting rope 30 is fixedly connected with the top sample line frame 300 at the top of the elevator shaft 200, and then the bearing frame 10 is assembled with the sample line 500 in the elevator shaft 200, so that the elevator shaft surveying device 100 is installed; immediately after the electric rope reel 20 releases the lifting rope 30, the carrier 10 starts to descend from the top of the elevator shaft 200 to the bottom of the elevator shaft 200, and the laser radar 40 surveys the elevator shaft 200; when the carrier 10 reaches the bottom of the elevator hoistway 200, survey data within the lidar 40 is acquired and uploaded to a data processor; the data processor analyzes and processes the survey data to generate an elevator shaft 200 measurement model, and verifies the structure of the elevator shaft 200 and the size of the elevator shaft 200 according to the elevator shaft 200 measurement model to determine whether the elevator shaft 200 has a construction quality problem.

Compared with the traditional manual surveying operation mode, the elevator well surveying device 100 of the scheme can complete the surveying operation of the elevator well 200 in a full-automatic mode, manual participation is not needed in the whole process, the labor intensity of workers is fundamentally reduced, the potential safety hazard of falling in the operation of the elevator well 200 is eliminated, meanwhile, along with the falling process from the top of the elevator well 200 to the bottom of the elevator well 200, the laser radar 40 rapidly completes the surveying operation, the surveying time is short, the efficiency is high, and high-precision surveying data can be generated to be used for forming an elevator well 200 measuring model, so that the construction quality of the elevator well 200 can be evaluated scientifically and effectively.

It should be noted that, the carrier 10 is further provided with an accelerometer for detecting whether the carrier 10 swings, and when no swing occurs, the laser radar 40 is normally started to perform measurement operation, so as to ensure measurement accuracy; if a small swing occurs, the deviation can be calculated and compensated by a software algorithm in the data processor.

Furthermore, the lidar 40 can determine the measurement start position through the bottom of the elevator hoistway 200, thereby acting as a scale for the speed control of the entire measurement process.

With continued reference to fig. 2 and 4, in some embodiments, the carrier 10 includes a frame body 11 and at least two adjustable telescopic arms 12, at least two of the adjustable telescopic arms 12 are movably disposed on opposite sides of the frame body 11, and scale portions 14 are disposed on the adjustable telescopic arms 12. The adjustable telescopic arm 12 can perform telescopic movement relative to the frame main body 11, so that the purpose of adjusting the width size of the bearing frame 10 is achieved, and further measurement operations can be completed over different door width door openings on the elevator well 200, and the adjustable telescopic arm is suitable for measurement requirements of different elevator wells 200.

With continued reference to fig. 3, further, since the scale portion 14 is provided on the adjustable telescopic arm 12, the telescopic length can be conveniently and precisely controlled, and the extension lengths of the adjustable telescopic arms 12 located at two opposite sides of the frame body 11 are ensured to be equal.

Preferably, four adjustable telescopic arms 12 are used in this embodiment. Two adjustable telescopic arms 12 are arranged at an upper and lower interval on the left side of the frame body 11 in the horizontal direction, and two adjustable telescopic arms 12 are arranged at an upper and lower interval on the right side of the frame body 11 in the horizontal direction. The two adjustable telescopic arms 12 on the left side and the right side are respectively in sliding sleeve joint with one lofting line 500, at the moment, four connecting positions can be formed, and the guiding effect of the lofting line 500 on the bearing frame 10 is further improved.

With continued reference to fig. 2 and fig. 4, furthermore, the carrying rack 10 further includes a locking nut 13, the rack main body 11 is provided with a sliding hole, the adjustable telescopic arm 12 is slidably inserted into the sliding hole, the locking nut 13 is screwed on the rack main body 11 and is disposed near an orifice of the sliding hole, and the locking nut 13 is used for locking and fixing the adjustable telescopic arm 12 after the adjustable telescopic arm 12 is adjusted to a length. So, lock nut 13 locks adjustable flexible arm 12 and frame main part 11 to can fix the length position after the regulation with adjustable flexible arm 12, in order to avoid taking place unexpected not hard up, guarantee follow-up detection precision.

It is easy to understand that the hole wall of the sliding hole is provided with a notch, when the locking nut 13 is screwed down, the hole is compressed and deformed under the compression action of the locking nut 13, so that the adjustable telescopic arm 12 is clamped, and the purpose of preventing the adjustable telescopic arm 12 from loosening is achieved. Simple structure, simple operation is laborsaving.

Of course, in other embodiments, the lock nut 13 may be replaced by a bolt, the frame body 11 is provided with a first jack, and the adjustable telescopic arm 12 is provided with a plurality of second jacks arranged in a line shape along the length direction at intervals. The adjustable telescopic arm 12 is moved in a telescopic manner, different second jacks are aligned with the first jacks, and the bolts are inserted into the first jacks and the second jacks, so that the adjustable telescopic arm 12 and the frame main body 11 can be assembled and fixed.

With continued reference to fig. 3, in some embodiments, a mounting box 15 is disposed at an end of the adjustable telescopic arm 12 away from the frame main body 11, a first wire guide block 16 and a second wire guide block 17 are stacked up and down in the mounting box 15, a first wire guide groove 161 is formed in the first wire guide block 16, a second wire guide groove 171 is formed in the second wire guide block 17, a notch of the first wire guide groove 161 is disposed opposite to a groove bottom of the second wire guide groove 171, a notch of the second wire guide groove 171 is disposed opposite to a groove bottom of the first wire guide groove 161, and the first wire guide groove 161 and the second wire guide groove 171 cooperate to enclose a wire guide hole, and the wire guide hole is used for allowing the lofting line 500 to pass through.

The mounting box 15 is square, and the upper end face is open, so that the first wire block 16 and the second wire block 17 can be conveniently put into or taken out of the mounting box 15. The first wire passing groove 161 and the second wire passing groove 171 enclose to form a wire guide, and the lofting wire 500 passes through the wire guide, and the lofting wire 500 is restrained by the hole wall of the wire guide, so that the bearing frame 10 can be prevented from shaking relative to the lofting wire 500 to influence the detection precision of the laser radar 40. And the assembly mode that the notch is opposite to and is spliced with the lofting line 500 has simple installation structure, labor-saving and quick assembly and disassembly, and is convenient for the elevator shaft surveying device 100 to be installed and used in the elevator shaft 200 and disassembled.

With continued reference to fig. 3, further, the wall of the installation box 15 is convexly provided with an anti-rotation protrusion 151, the outer walls of the first wire block 16 and the second wire block 17 are concavely provided with an anti-rotation groove 152, and the anti-rotation protrusion 151 is inserted into the anti-rotation groove 152. Thus, the first wire block 16 and the second wire block 17 cannot rotate relative to the mounting box 15, so that the lofting line 500 is prevented from twisting and laterally moving, and the purpose of locking the position of the lofting line 500 is achieved.

Further, the box mouth of the mounting box 15 is covered with a pressing plate 18. The pressing plate 18 covers the box opening of the mounting box 15, and prevents the first wire block 16 and the second wire block 17 from being separated from the mounting box 15. Alternatively, the pressing plate 18 and the mounting box 15 may be any one of threaded connection, snap connection, hooping connection, etc., which is specifically selected according to practical needs.

With continued reference to fig. 5 and 6, in some embodiments, the electric rope winder 20 includes a rope winding box 21, a motor 22, a rope winding shaft 23, a worm wheel 24 and a worm 25, wherein the motor 22 is disposed on the rope winding box 21 and is in driving connection with the worm 25, the rope winding shaft 23 is rotatably disposed in the rope winding box 21 and is fixedly connected with the worm wheel 24, the worm wheel 24 is in meshed transmission fit with the worm 25, and the rope winding shaft 23 is fixedly connected with one end of the lifting rope 30. When the elevator is in operation, the motor 22 drives the worm 25 to rotate clockwise, the worm 25 synchronously drives the turbine to rotate, the turbine synchronously drives the rope winding shaft 23 to rotate, the rope winding shaft 23 winds up the lifting rope 30, the lifting rope 30 is shortened, and the bearing frame 10 moves towards the top of the elevator shaft 200; in contrast, the rope winding shaft 23 winds and unwinds the lift rope 30, the lift rope 30 becomes longer, and the carrier 10 moves toward the bottom of the elevator hoistway 200. Allowing the lidar 40 to be lifted through each height position of the elevator hoistway 200 to complete a complete survey of all locations of the elevator hoistway 200.

By adopting the worm gear 25 as a transmission component, the self-locking characteristic of the worm gear and the transmission component can be fully utilized, the extension or shortening of the lifting rope 30 can be changed only through the motor 22, the length of the lifting rope 30 cannot be changed by external force, and the safety and accuracy of the surveying process are ensured.

With continued reference to fig. 2 and 4, when the lifting rope 30 has quality defects such as abnormal wire diameter, the lifting rope 30 has a risk of breakage, and the high-level surveying device directly falls to the bottom of the well and is damaged. In view of this, in addition to any of the above embodiments, the hoistway surveying device 100 further includes a safety landing assembly 70, the safety landing assembly 70 includes a rope breakage detection switch 71 and a parachute 72, the rope breakage detection switch 71 is provided on the electric rope reel 20 and is engaged with the lifting rope 30, and the parachute 72 is provided on the carriage 10 and is electrically connected to the rope breakage detection switch 71. The rope breakage detection switch 71 is used for detecting whether the lifting rope 30 is broken, and when the lifting rope 30 is detected to be broken, a signal is fed back to the parachute 72, and the parachute 72 is opened, so that the elevator hoistway surveying device 100 can safely and stably fall to the bottom of the elevator hoistway 200, and the occurrence of crash is avoided.

With continued reference to fig. 2, in still other embodiments, the hoistway surveying device 100 further includes a limit switch 80, where the limit switch 80 is disposed at the bottom of the carrier 10, and the limit switch 80 is configured to be in triggering engagement with a bottom sample frame 400 preset at the bottom of the hoistway 200. For example, when the carrier 10 descends to the bottom of the elevator shaft 200, the limit switch 80 at the bottom of the carrier 10 contacts the bottom sample frame 400, so that the motor 22 can be immediately triggered to stop running, and the carrier 10 is prevented from being excessively descended to collide with the bottom sample frame 400 for damage. Alternatively, the limit switch 80 may be a mechanical switch, a piezoelectric switch, or the like, which is specifically selected according to actual needs.

With continued reference to fig. 1, further, the hoistway surveying device 100 further includes a buffer assembly 90, the buffer assembly 90 being configured to be disposed on the bottom sample frame 400 and configured to buffer the load carrier 10. For example, the buffer assembly 90 may be an elastic material such as a spring, a shrapnel, an elastic column, or a soft material such as foam, rubber, wood, etc., and contacts with the buffer assembly 90 when the carrier 10 descends to the limit position, the buffer assembly 90 plays a role in buffering and decelerating the carrier 10, so as to avoid collision damage to the bottom sample line frame 400 caused by too fast descending speed of the carrier 10.

With continued reference to fig. 7, in addition to the above, the present application also provides a method for surveying operation using the hoistway surveying device 100 according to any of the above embodiments, which includes the following steps:

s100: the load carrier 10 is assembled with a load line 500 within the elevator hoistway 200.

S200: the electric rope reel 20 releases the hoisting rope 30, the carrier 10 starts to descend from the top of the elevator shaft 200 to the bottom of the elevator shaft 200, and the laser radar 40 performs surveying work on the elevator shaft 200.

S300: the load carrier 10 reaches the bottom of the elevator hoistway 200, and survey data in the lidar 40 is acquired and uploaded to a data processor.

S400: the data processor analyzes and processes the survey data to generate an elevator well 200 measurement model, and the construction quality of the elevator well 200 is checked according to the elevator well 200 measurement model.

When in use, the lifting rope 30 is fixedly connected with the top sample line frame 300 at the top of the elevator well 200, and then the bearing frame 10 is assembled with the sample line 500 in the elevator well 200, so that the installation of the elevator well surveying device 100 is completed; immediately after the electric rope reel 20 releases the lifting rope 30, the carrier 10 starts to descend from the top of the elevator shaft 200 to the bottom of the elevator shaft 200, and the laser radar 40 surveys the elevator shaft 200; when the carrier 10 reaches the bottom of the elevator hoistway 200, survey data within the lidar 40 is acquired and uploaded to a data processor; the data processor analyzes and processes the survey data to generate an elevator shaft 200 measurement model, and verifies the structure of the elevator shaft 200 and the size of the elevator shaft 200 according to the elevator shaft 200 measurement model to determine whether the elevator shaft 200 has a construction quality problem. Compared with the traditional manual surveying operation mode, the elevator well surveying device 100 of the scheme can complete the surveying operation of the elevator well 200 in a full-automatic mode, manual participation is not needed in the whole process, the labor intensity of workers is fundamentally reduced, the potential safety hazard of falling in the operation of the elevator well 200 is eliminated, meanwhile, along with the falling process from the top of the elevator well 200 to the bottom of the elevator well 200, the laser radar 40 rapidly completes the surveying operation, the surveying time is short, the efficiency is high, and high-precision surveying data can be generated to be used for forming an elevator well 200 measuring model, so that the construction quality of the elevator well 200 can be evaluated scientifically and effectively.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Claims (10)

1. A hoistway surveying device, the hoistway surveying device comprising:

the bearing frame takes a door zone lofting line in an elevator hoistway as a guide line, and comprises a frame main body and at least two adjustable telescopic arms, wherein the at least two adjustable telescopic arms are respectively and movably arranged on two opposite sides of the frame main body;

the electric rope winder is arranged on the bearing frame and connected with a lifting rope, the electric rope winder is used for controlling winding and unwinding of the lifting rope, and the lifting rope is used for being fixedly connected with a top sample line frame preset at the top of the elevator shaft; and

and the laser radar is arranged on the bearing frame and is used for surveying the elevator hoistway.

2. The hoistway surveying device according to claim 1, wherein the adjustable telescopic arm is provided with graduations.

3. The hoistway surveying device according to claim 2, wherein the carrier further comprises a lock nut, the frame body is provided with a sliding hole, the adjustable telescopic arm is slidably inserted into the sliding hole, the lock nut is screwed on the frame body and is arranged near an opening of the sliding hole, and the lock nut is used for locking and fixing the adjustable telescopic arm after the adjustable telescopic arm is adjusted to a length.

4. The elevator hoistway surveying device according to claim 2, wherein an end portion of the adjustable telescopic arm away from the frame body is provided with a mounting box, a first wire block and a second wire block are stacked up and down in the mounting box, a first wire passing groove is formed in the first wire block, a second wire passing groove is formed in the second wire block, a notch of the first wire passing groove is opposite to a groove bottom of the second wire passing groove, a notch of the second wire passing groove is opposite to the groove bottom of the first wire passing groove, the first wire passing groove and the second wire passing groove are combined to form a wire guide, and the wire guide is used for enabling the lofting wire to pass through.

5. The hoistway surveying device according to claim 4, wherein a box wall of the mounting box is convexly provided with an anti-rotation convex body, outer walls of the first wire block and the second wire block are concavely provided with anti-rotation grooves, and the anti-rotation convex body is inserted into the anti-rotation grooves;

the box opening of the mounting box is covered with a pressing plate.

6. The hoistway surveying device according to claim 1, wherein the electric rope reel comprises a rope reel, a motor, a rope reel, a worm wheel and a worm, the motor is arranged on the rope reel and is in driving connection with the worm, the rope reel is rotatably arranged in the rope reel and is fixedly connected with the worm wheel, the worm wheel is in meshed transmission fit with the worm, and the rope reel is fixedly connected with one end of the lifting rope.

7. The hoistway surveying device of claim 1, further comprising a safety landing assembly including a rope breakage detection switch disposed on the electric rope reel and cooperating with the lift rope, and a parachute disposed on the carrier and electrically connected with the rope breakage detection switch.

8. The hoistway surveying device according to claim 1, further comprising a limit switch disposed at a bottom of the carrier, the limit switch being configured to trigger fit with a bottom sample frame preset at the bottom of the hoistway.

9. The hoistway surveying device of claim 8, further comprising a buffer assembly for being disposed on the bottom sample frame and capable of buffering the load carrier.

10. A method of surveying operating with a hoistway surveying device according to any of claims 1 to 9, comprising the steps of:

assembling the bearing frame with a lofting line in an elevator shaft;

the electric rope winder releases the lifting rope, the bearing frame starts to descend from the top of the elevator shaft to the bottom of the elevator shaft, and the laser radar surveys the elevator shaft;

the bearing frame reaches the bottom of the elevator shaft, and survey data in the laser radar are acquired and uploaded to a data processor;

and the data processor analyzes and processes the survey data to generate an elevator well measurement model, and the construction quality of the elevator well is checked according to the elevator well measurement model.

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