CN114014207A

CN114014207A - Elevator shaft surveying device

Info

Publication number: CN114014207A
Application number: CN202111393769.0A
Authority: CN
Inventors: 唐崇; 唐其伟; 程伟; 张运派
Original assignee: Hitachi Building Technology Guangzhou Co Ltd
Current assignee: Hitachi Building Technology Guangzhou Co Ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-02-08
Anticipated expiration: 2041-11-23
Also published as: CN114014207B

Abstract

The invention relates to an elevator shaft surveying device, comprising: a lifting drive mechanism; the measuring platform is connected with the lifting driving mechanism and can move up and down in a hoistway under the driving of the lifting driving mechanism; the attitude keeping mechanism is respectively connected and fixed with the lifting driving mechanism and the well pit, and is in spacing and guiding fit with the measuring platform; and the measurement executing mechanism is arranged on the measurement platform and is used for completing survey operation on the well. Survey in-process gesture retaining mechanism can play spacing and guide effect to measuring platform, guarantees that measuring platform gesture is steady in the elevator well, can not take place to rotate or transversely rock because of receiving factors influences such as air current, mechanical vibration in the well, can guarantee to measure actuating mechanism's levelness and straightness that hangs down, prevents to lead to surveying the result degree of accuracy low because of the measurement deviation.

Description

Elevator shaft surveying device

Technical Field

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

Background

Generally, an elevator system is mainly composed of an elevator and a hoistway in which the elevator is operated to ascend and descend to achieve transportation of people or things between different floors. In order to ensure the safe and reliable operation of the elevator, the construction of the shaft needs to be surveyed firstly after the construction is finished so as to evaluate whether the construction quality of the shaft meets the design requirements. In view of the time and labor consumption of the traditional manual surveying mode, the personnel safety can not be guaranteed, the measuring precision is easily influenced by human errors, and the automatic surveying device is adopted more and more in the industry to complete related operations.

At present, the more common automatic surveying devices mainly comprise an unmanned aerial vehicle surveying device and a traction surveying device. Unmanned aerial vehicle surveys device and tows and surveys the device and all realizes the well through carrying on measuring mechanism and survey the purpose, but both when high-rise or even super high-rise well in-service, all receive airflow, mechanical vibration's in the well influence easily and take place to rotate or horizontal beat, lead to the gesture poor stability, cause measuring mechanism's levelness and straightness deviation that hangs down big, influence measurement accuracy.

Disclosure of Invention

Based on this, it is necessary to provide an elevator well surveying device, aims at solving the problems of poor posture stability, large levelness and verticality deviation of a measuring mechanism and low measuring precision in the prior art.

The application provides a device is surveyed to elevator well, device is surveyed to elevator well includes:

a lifting drive mechanism;

the measuring platform is connected with the lifting driving mechanism and can move up and down in a hoistway under the driving of the lifting driving mechanism;

the attitude keeping mechanism is respectively connected and fixed with the lifting driving mechanism and the well pit, and is in spacing and guiding fit with the measuring platform; and

and the measurement executing mechanism is arranged on the measurement platform and is used for completing surveying operation on the well.

The elevator well surveying device of the scheme is applied to the occasion of surveying the elevator well, when the elevator well surveying device is used, the lifting driving mechanism is installed at the top of the elevator well, the measuring executing mechanism is installed on the measuring platform, the measuring platform is connected and reliable with the lifting driving mechanism, and finally the measuring platform is placed in the elevator well and matched with the attitude keeping mechanism. Along with the lifting drive mechanism drive measuring platform rises or descends and removes in the elevator well, measure actuating mechanism and can accomplish each item to survey work to the elevator well, and gesture retaining mechanism can play spacing and guide effect to measuring platform at this in-process, guarantee that measuring platform gesture is steady in the elevator well, can not take place to rotate or transversely rock because of receiving factors such as air current in the well, mechanical vibration, can guarantee to measure actuating mechanism's levelness and straightness that hangs down, prevent to lead to surveying the result degree of accuracy low because of the measurement deviation.

The technical solution of the present application is further described below:

in one embodiment, the posture maintaining mechanism includes a first limiting member and a second limiting member, the first limiting member and the second limiting member are both extended along the depth direction of the hoistway and are arranged at intervals in the horizontal direction, the measuring platform includes a platform body and a first mating member and a second mating member respectively arranged on two opposite sides of the platform body, the first mating member is in sliding guide fit with the first limiting member, and the second mating member is in sliding guide fit with the second limiting member.

In one embodiment, the first mating member and the second mating member are both provided as sliding bearings, and the first limiting member and the second limiting member are both provided as limiting steel wire ropes which pass through inner holes of the sliding bearings;

the measuring platform further comprises a position adjusting assembly, the position adjusting assembly is arranged on the platform body and connected with the sliding bearing, and the position adjusting assembly is used for driving the sliding bearing to be close to or far away from the platform body.

In one embodiment, the measurement executing mechanism comprises a horizontal distance measuring module, an angle sensor, a camera, a first height sensor and a second height sensor, wherein the horizontal distance measuring module, the angle sensor, the camera and the first height sensor are respectively arranged on the platform body, and the second height sensor is used for being installed in the well pit.

In one embodiment, the measurement executing mechanism further comprises a laser emitter and a photoelectric position sensor, the laser emitter is used for being installed in the hoistway pit, the photoelectric position sensor is arranged on the platform body, and the photoelectric position sensor is matched with the laser emitter.

In one embodiment, the lifting driving mechanism comprises a loading vehicle, a driving motor, a rope drum, a lifting steel wire rope, a guide wheel and a lifting hook, wherein the driving motor is arranged on the loading vehicle and is in driving connection with the rope drum, one end of the lifting steel wire rope is wound on the rope drum, the guide wheel is arranged on the loading vehicle and is arranged on one side of the rope drum, the lifting steel wire rope is wound on the guide wheel, and the other end of the lifting steel wire rope is connected with the lifting hook;

the measuring platform further comprises a lifting ring, and the lifting ring is arranged on the platform body and can be connected with the lifting hook in a hooking mode.

In one embodiment, the posture-keeping mechanism further includes an upper beam, a tensioning assembly, supporting legs and a lower beam, the upper beam is close to or far away from the movable connection with the lower beam through the tensioning assembly, the supporting legs are disposed at two ends of the upper beam and used for being mounted at the top of the hoistway, and the first limiting member and the second limiting member are respectively disposed on the lower beam.

In one embodiment, the tensioning assembly comprises a first screw, a fastening nut, an adjusting nut and a second screw, the first screw is screwed on the upper cross beam, the fastening nut is screwed on the first screw and keeps the first screw and the upper cross beam relatively static, the adjusting nut is screwed between the first screw and the second screw, and the second screw is fixedly arranged on the lower cross beam.

In one embodiment, the posture maintaining mechanism further includes a first guiding assembly and a second guiding assembly, the first guiding assembly and the second guiding assembly are respectively disposed on two opposite sides of the tensioning assembly, each of the first guiding assembly and the second guiding assembly includes a guide rod and a guide sleeve, the guide sleeve is disposed in a preset hole of the upper cross beam, one end of the guide rod is fixedly disposed on the lower cross beam, and the other end of the guide rod is slidably disposed in the guide sleeve.

In one embodiment, the elevator shaft surveying device further comprises a control box, a control terminal and a handheld operator, wherein the control box is respectively connected with the control terminal, the handheld operator, the lifting driving mechanism and the measurement executing mechanism in a communication mode.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural view of an elevator shaft surveying apparatus according to an embodiment of the present application installed in an elevator shaft;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of the lifting driving mechanism in FIG. 1;

FIG. 4 is a schematic structural view of the attitude keeping mechanism of FIG. 1;

fig. 5 is a state view of the posture maintaining mechanism of fig. 4 installed in the elevator shaft;

FIG. 6 is a schematic structural diagram of the measurement platform of FIG. 1;

fig. 7 is a schematic structural diagram of another view angle of fig. 6.

Description of reference numerals:

100. an elevator hoistway survey apparatus; 10. a lifting drive mechanism; 11. a loading vehicle; 12. a drive motor; 13. a rope drum; 14. lifting the steel wire rope; 15. a guide wheel; 16. a hook; 20. a measuring platform; 21. a platform body; 22. a first mating member; 23. a second mating member; 24. a position adjustment assembly; 25. a hoisting ring; 30. a posture-retaining mechanism; 31. a first limit piece; 32. a second limiting member; 33. an upper cross beam; 34. a tension assembly; 341. a first screw; 342. fastening a nut; 343. adjusting the nut; 344. a second screw; 35. a first guide assembly; 351. a guide bar; 352. a guide sleeve; 36. a second guide assembly; 37. supporting legs; 38. a lower cross beam; 40. a measurement actuator; 41. a horizontal ranging module; 42. an angle sensor; 43. a camera; 44. a first height sensor; 45. a second height sensor; 46. a laser transmitter; 47. a photoelectric position sensor; 50. a control box; 60. a control terminal; 70. a hand-held operator; 200. a hoistway; 210. a hoistway top; 220. a well pit.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

As shown in fig. 1, a schematic view of an elevator hoistway survey apparatus 100 shown for one embodiment of the present application installed within an elevator hoistway 200. In which the elevator shaft 200 is a structure constructed in a height direction, and a shaft cavity formed to extend in the height direction is used to provide a space required for the operation of the car. The hole has been seted up at the top of elevator well 200, and the wire rope of the system of towing of convenient installation in elevator well 200 top stretches into the well intracavity and is connected with the car.

Illustratively, the elevator shaft surveying device 100 in the present embodiment includes: the device comprises a lifting drive mechanism 10, a measuring platform 20, a posture holding mechanism 30 and a measuring execution mechanism 40.

The measuring platform 20 is connected with the lifting driving mechanism 10, and the measuring platform 20 can be driven by the lifting driving mechanism 10 to move up and down in the hoistway 200; the posture maintaining mechanism 30 is respectively connected and fixed with the lifting driving mechanism 10 and the pit of the well 200, and the posture maintaining mechanism 30 is in limit and guide fit with the measuring platform 20; the measurement actuators 40 are disposed on the measurement platform 20 and are used to perform survey operations on the hoistway 200.

In summary, the implementation of the technical solution of the present embodiment has the following beneficial effects: the elevator shaft surveying device 100 of the above-mentioned scheme is applied to the occasion of surveying the elevator shaft 200, when in use, the lifting driving mechanism 10 is installed at the top of the elevator shaft 200, then the measurement executing mechanism 40 is installed on the measurement platform 20, the measurement platform 20 is connected with the lifting driving mechanism 10, and finally the measurement platform 20 is placed in the elevator shaft 200 and is matched with the posture maintaining mechanism 30. Along with the lifting drive mechanism 10 drives the measuring platform 20 to move up or down in the elevator shaft 200, the measuring execution mechanism 40 can complete various surveying works on the elevator shaft 200, the posture maintaining mechanism 30 can limit and guide the measuring platform 20 in the process, the posture of the measuring platform 20 in the elevator shaft 200 is stable, the measuring platform can not rotate or transversely shake due to the influence of factors such as air flow and mechanical vibration in the shaft 200, the levelness and the verticality of the measuring execution mechanism 40 can be guaranteed, and the low accuracy of a surveying result caused by measuring deviation is prevented.

With reference to fig. 1 and fig. 4 to 7, in some embodiments, the posture maintaining mechanism 30 includes a first limiting member 31 and a second limiting member 32, the first limiting member 31 and the second limiting member 32 are both extended along the depth direction of the hoistway 200 and are arranged at intervals in the horizontal direction, the measuring platform 20 includes a platform body 21 and a first mating member 22 and a second mating member 23 respectively disposed on two opposite sides of the platform body 21, the first mating member 22 is slidably and slidably engaged with the first limiting member 31, and the second mating member 23 is slidably and slidably engaged with the second limiting member 32.

Specifically, the first mating member 22 and the second mating member 23 are both set as sliding bearings, and the first limiting member 31 and the second limiting member 32 are both set as limiting steel wire ropes, which pass through the inner holes of the sliding bearings.

During installation, the lower ends of the two limiting steel wire ropes are connected with the integrated expansion hook. The integrated expansion hook is used for being fixedly arranged in a pit of the elevator shaft 200, so that one end of the limiting steel wire rope is fixed. The other ends of the limiting steel wire ropes are fixed at the top of the elevator shaft 200, so that the two limiting steel wire ropes are reliably fixed in the elevator shaft 200. When the measuring platform 20 is driven by the lifting driving mechanism 10 to move up and down in the elevator shaft 200, the limiting steel wire rope is in sliding fit with the sliding bearing, so that the transverse movement and the rotational freedom of the measuring platform 20 can be limited, the effect that the measuring platform 20 stably ascends or descends is ensured, the phenomenon that the measuring platform is rotated or transversely rocked under the action of air flow is avoided, and the measuring precision of the measuring executing mechanism 40 is ensured.

With continued reference to fig. 6 and 7, the measuring platform 20 further includes a position adjusting assembly 24, the position adjusting assembly 24 is disposed on the platform body 21 and connected to the sliding bearing, and the position adjusting assembly 24 is used for driving the sliding bearing to move toward or away from the platform body 21. By operating the position adjusting assembly 24, the installation position of the sliding bearing can be finely adjusted in a telescopic manner, so that the hollow part of the sliding bearing is ensured to be coaxial with the limiting steel wire rope, and the measuring platform 20 can be guided to vertically run up and down in the hoistway 200.

Optionally, the sliding bearing is made of a copper alloy material, so that friction and abrasion between the sliding bearing and the limiting steel wire rope can be reduced, and the service life is prolonged. And the position adjusting assembly 24 and the sliding bearing adopt a split design, so that the installation of the platform body 21 and the replacement of the sliding bearing are convenient. For example, in the embodiment, the position adjusting assembly 24 is composed of the guide sleeve 352, the fixing ring, the telescopic guide rod, and the like, and the sliding bearing can be driven to be close to the platform body 21 or to be far from the platform body 21 by the fixing ring through the telescopic movement of the telescopic guide rod.

With reference to fig. 2, fig. 3 and fig. 6, in some embodiments, the lifting driving mechanism 10 includes a loading vehicle 11, a driving motor 12, a rope drum 13, a lifting steel wire rope 14, a guide wheel 15 and a hook 16, the driving motor 12 is disposed on the loading vehicle 11 and is in driving connection with the rope drum 13, one end of the lifting steel wire rope 14 is wound on the rope drum 13, the guide wheel 15 is disposed on the loading vehicle 11 and is disposed at one side of the rope drum 13, the lifting steel wire rope 14 is wound on the guide wheel 15, and the other end of the lifting steel wire rope 14 is connected with the hook 16; the measuring platform 20 further comprises a hanging ring 25, and the hanging ring 25 is arranged on the platform body 21 and can be hooked and connected with the hanging hook 16.

When the lifting platform works, the lifting hook 16 is hooked with the lifting ring 25, and then the lifting driving mechanism 10 is connected with the platform body 21. The loading vehicle 11 is a main body for supporting the elevation driving mechanism 10, and has mobility to allow other components such as the driving motor 12 to be mounted thereon, and facilitates movement and transition of the elevation driving mechanism 10.

When the driving motor 12 rotates forwards, the rope drum 13 is driven to roll up the lifting steel wire rope 14, so that the measuring platform 20 and the measuring executing mechanism 40 can be lifted by the lifting hook 16 to ascend in the elevator hoistway 200; instead, the hoist drive mechanism 10 may drive the survey platform 20 and survey implement 40 down within the elevator hoistway 200 to complete a comprehensive survey of the elevator hoistway 200. In the winding or unwinding process of the lifting steel wire rope 14, the guide wheel 15 arranged on one side plays a role in guiding and limiting the lifting steel wire rope 14, and the lifting steel wire rope 14 is ensured to stably move in a lifting mode. Further, the outside of leading wheel 15 still installs anticreep baffle (can adopt the nylon material, keeps off and protects effectually, and manufacturing and use cost are low), and anticreep baffle can effectively prevent that lift wire rope 14 from deviating from in the grooving of rope drum 13.

The driving motor 12 is a stepping motor with a brake, which has low speed, high torque, high control precision and low maintenance cost, and when the power supply is powered off accidentally, the brake can prevent the measuring platform 20 from falling into the well, thereby ensuring the safety of the equipment.

Preferably, the hook 16 is provided with a bearing therein, so that the hook 16 can rotate 360 degrees to prevent the lifting wire 14 from rotating and twisting during the lifting process.

The lifting driving mechanism 10 further comprises a double-clip buckle, and the lifting steel wire rope 14 is connected with the lifting hook 16 through the double-clip buckle, so that the connection reliability is high, and the assembly and disassembly are convenient.

With reference to fig. 1 and fig. 2, on the basis of any of the above embodiments, the measurement executing mechanism 40 includes a horizontal distance measuring module 41, an angle sensor 42, a camera 43, a first height sensor 44, and a second height sensor 45, the horizontal distance measuring module 41, the angle sensor 42, the camera 43, and the first height sensor 44 are respectively disposed on the platform body 21, and the second height sensor 45 is configured to be installed in the pit of the hoistway 200.

During operation, horizontal ranging module 41 is installed on platform body 21, can accomplish cross section data acquisition to well 200 for measure well 200 horizontal distance. The angle sensor 42 is installed on the platform body 21 and is used for measuring the inclination angles of the platform 20 in the directions of the plane X axis and the plane Y axis, that is, the horizontal distance measuring module 41 is used for measuring the inclination angle of the cross section of the hoistway 200 in the vertical direction. The camera 43 is mounted on the platform body 21 and used for acquiring images of the hoistway 200. The first height sensor 44 is mounted on the platform body 21 for detecting a distance from the horizontal ranging module 41 to the top of the hoistway 200. The second height sensor 45 is installed at the pit of the hoistway 200 and detects the distance from the horizontal ranging module 41 to the top of the hoistway 200.

Further, the measurement executing mechanism 40 further includes a laser emitter 46 and a photoelectric position sensor 47, the laser emitter 46 is used for being installed in the pit of the hoistway 200, the photoelectric position sensor 47 is arranged on the platform body 21, and the photoelectric position sensor 47 is matched with the laser emitter 46. The photoelectric position sensor 47 may use a two-dimensional PSD, and the laser transmitter 46 is matched with the photoelectric position sensor 47, and is mainly used for detecting the offset of the horizontal ranging module 41 from the vertical reference line in the X-axis and Y-axis directions. Alternatively, the laser transmitter 46 and the photoelectric position sensor 47 may also adopt an image recognition scheme, such as including a laser transmitter, a light spot receiving screen, and the central short-focus camera 43, and the camera 43 collects and identifies the position of the light spot on the receiving screen.

With reference to fig. 4 and fig. 5, in some embodiments, the posture-keeping mechanism 30 further includes an upper beam 33, a tensioning assembly 34, a supporting leg 37 and a lower beam 38, the upper beam 33 is movably connected to or separated from the lower beam 38 by the tensioning assembly 34, the supporting leg 37 is disposed at two ends of the upper beam 33 and is configured to be installed at the top of the hoistway 200, and the first limiting member 31 and the second limiting member 32 are respectively disposed on the lower beam 38. The support legs 37 are firmly supported with the elevator shaft 200 to ensure that the posture maintaining mechanism 30 is reliably installed at the top of the elevator shaft 200 and close to the hole. In this embodiment, the supporting legs 37 are designed to have a cup structure, have a large contact area with the elevator shaft 200, and can generate a certain vacuum suction force to prevent the posture holding mechanism 30 from being displaced and laterally deviated.

Because the upper cross beam 33 is fixed at the top of the elevator hoistway 200 through the supporting feet 37, the lower cross beam 38 is connected with the upper cross beam 33 through the tensioning assembly 34, and the tensioning assembly 34 is adjusted to drive the lower cross beam 38 to move up and down, so that the effect of tensioning the lifting steel wire rope 14 is achieved, the lifting steel wire rope 14 which is deformed and extended during installation or long-term use is kept in a tight state, the lifting steel wire rope 14 is tensioned to resist the influence of external environments such as vibration, airflow and the like, and the vertical and horizontal deviation measurement is ensured to be within a controllable range.

In some embodiments, the tensioning assembly 34 includes a first screw 341, a fastening nut 342, an adjusting nut 343, and a second screw 344, the first screw 341 is screwed on the upper beam 33, the fastening nut 342 is screwed on the first screw 341 and keeps the first screw 341 and the upper beam 33 relatively stationary, the adjusting nut 343 is screwed between the first screw 341 and the second screw 344, and the second screw 344 is fixed on the lower beam 38.

During installation, the first screw 341 is screwed with the upper beam 33 and can be locked and fixed by the fastening nut 342, so that the purpose of suspension installation can be achieved for the adjusting nut 343. When the lifting steel wire rope 14 needs to be tensioned, a worker at the top of the elevator hoistway 200 rotates the adjusting nut 343, the first screw 341 is fixed, and the second screw 344 can linearly lift and move by 2 times of pitch stroke, so that the purpose of quickly and effectively tensioning the lifting steel wire rope 14 is achieved.

Preferably, the first screw 341 and the second screw 344 are trapezoidal screws with 30 degrees, which are most suitable for bearing the axial load and have a self-locking function; the size of the central shaft of the upper and lower nut adjusting handles is increased to be N times of the pitch diameter of the thread, and when the tightening force is applied to be 1N, the axial force of the screw is multiplied, so that the adjusting operation can be performed by smaller force.

Further, the posture maintaining mechanism 30 further includes a first guiding assembly 35 and a second guiding assembly 36, the first guiding assembly 35 and the second guiding assembly 36 are respectively disposed on two opposite sides of the tensioning assembly 34, each of the first guiding assembly 35 and the second guiding assembly 36 includes a guide rod 351 and a guide sleeve 352, the guide sleeve 352 is disposed in a preset hole of the upper beam 33, one end of the guide rod 351 is fixedly disposed on the lower beam 38, and the other end of the guide rod 351 is slidably disposed in the guide sleeve 352.

When the adjusting nut 343 is operated to rotate, the preset first guide assembly 35 and the preset second guide assembly 36 have a limiting and guiding function on the second screw 344, so that the second screw 344 does not rotate and swing, and strictly performs axial linear motion.

In addition, the elevator shaft surveying device 100 further includes a connection plate for connecting the loading vehicle 11 to the upper cross member 33 of the posture maintaining mechanism 30 in an assembled manner, and supporting the posture maintaining mechanism 30 by the elevating drive mechanism 10 is achieved. Alternatively, the connecting plate is fixed to the loader 11 and the upper cross member 33 by any one of screwing, welding, snap-fitting, and the like.

With continued reference to fig. 1, on the basis of any of the above embodiments, the elevator shaft surveying apparatus 100 further includes a control box 50, a control terminal 60, and a hand-held operator 70, wherein the control box 50 is respectively connected in communication with the control terminal 60, the hand-held operator 70, the lifting drive mechanism 10, and the measurement execution mechanism 40. When the device works, the control box 50 is in mutual communication and matching with the control terminal 60, the lifting driving mechanism 10 and the measurement executing mechanism 40, so that automatic surveying operation can be realized, and the effects of improving quality, increasing efficiency and reducing cost are achieved.

The equipped hand-held operator 70 can make the staff to do manual intervention control according to the actual working condition, and meet different surveying needs. In an emergency, such as when the abnormality of the hoistway 200 is manually detected, the handheld operator 70 is provided with an up, down and stop function button, so that the control of the survey apparatus for the hoistway 200 can be forcibly executed in the case where the emergency is found.

The control box 50 is installed on the loading vehicle 11 and is composed of a control box 50 cabinet body, a driving power supply, a PLC master control, a motor driving controller, various switch buttons and the like. The control box 50 functions to control the shaft elevator well surveying device 100, and is responsible for the functions of adjusting the running speed of the surveying device, ascending, descending, stopping, displaying the battery consumption, and alarming in abnormal conditions. The control box 50 has associated function buttons.

The driving power source is used as a power source for each electrical component. The PLC master control is a control core of the system and is responsible for various specific controls of the system. The driving controller is used for controlling the motor to provide vertical up-down running driving force and speed adjusting function for the measuring platform 20. Various switch buttons, such as a power switch and a stop/start button, are responsible for power control, start, stop, motor scram, and the like of the device. The carrier up and down buttons are the up and down operation working buttons of the measuring platform 20, or the function of landing/parking in abnormal state. And the audible and visual alarm is used for driving the power supply electric quantity ultra-low prompting function. The battery consumption detector is used for displaying the electric quantity of the battery.

In addition, the elevator shaft surveying device 100 further comprises a communication transmission device 90, the device is subjected to communication control in a wireless mode of Wifi (2.4/5.8Ghz) (PA is added) (transmission distance is 0-200 m), and various devices are flexibly and extensively connected by means of a widely-applied WIFI protocol and an Ethernet interface carried by the communication device.

Further, the elevator hoistway surveying apparatus 100 further includes an operation module, which is installed on the measuring platform 20 or in the cabinet of the control box 50 and performs a comprehensive operation based on the measurement data of the horizontal distance measuring module 41, the angle sensor 42, the first height sensor 44, the second height sensor 45, and the photoelectric position sensor 47, so as to accurately determine the size of the hoistway 200.

It should be noted that the elevator shaft surveying device 100 in the present embodiment is specifically installed at the top of the shaft 200 and works through a hole at the top. In other embodiments, for the machine-room-equipped and machine-room-less hoistway 200, upper and lower door opening positions may be utilized, and a platform may be extended from each of the upper and lower door opening positions to mount the surveying device, and the platform may be supported by the ground outside the door opening and clamped to the door frame position.

When arranging in door opening department, consider that operation convenience and security can be close to the door opening department with surveying the device as far as possible, consider simultaneously that distance measuring sensor has the biggest and minimum transmission distance limitation, same horizontal ranging module 41 is guaranteeing under the circumstances of range finding precision, probably can not be compatible and satisfy the biggest of well 200 and the limitation of minimum range finding simultaneously, can add the horizontal ranging module 41 of a short stroke and be directed against the door opening short stroke position specially.

It should be noted that the tension of the lifting steel wire rope 14 can be adjusted by the adjusting nut 343 of the tensioning assembly 34, and when the laser emitter 46 and the photoelectric position sensor 47 detect that the offset of the horizontal ranging module 41 from the vertical reference line is too large, the adjusting nut 343 is rotated by increasing the force to increase the tension of the lifting steel wire rope 14 so as to adjust the offset to a proper position for measurement. Further explanation is as follows: assuming that horizontal thrust Fw generated by the measuring platform 20 due to air flow and other reasons pushes the lifting steel wire rope 14 to move theta, Fw is equal to the resultant force Fr of the tension F1 of the lifting steel wire rope 14 and the rope tension F1 in a balanced state, and when the tension F1 is increased, the movement theta of the lifting steel wire rope 14 is reduced, namely, the offset from a vertical datum line is reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

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

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. An elevator hoistway surveying apparatus, characterized by comprising:

a lifting drive mechanism;

2. The apparatus according to claim 1, wherein the posture-maintaining mechanism includes a first limiting member and a second limiting member, the first limiting member and the second limiting member are both disposed along a depth direction of the hoistway and spaced apart from each other in a horizontal direction, the measurement platform includes a platform body and a first engaging member and a second engaging member respectively disposed on opposite sides of the platform body, the first engaging member is slidably and slidably engaged with the first limiting member, and the second engaging member is slidably and slidably engaged with the second limiting member.

3. The elevator hoistway surveying apparatus according to claim 2, wherein the first fitting member and the second fitting member are each provided as a sliding bearing, and the first stopper and the second stopper are each provided as a stopper wire rope that passes through an inner hole of the sliding bearing;

4. The elevator hoistway surveying apparatus according to claim 2, wherein the measurement performing mechanism includes a horizontal ranging module, an angle sensor, a camera, a first height sensor, and a second height sensor, the horizontal ranging module, the angle sensor, the camera, and the first height sensor are respectively provided to the platform body, and the second height sensor is adapted to be installed in the hoistway pit.

5. The elevator hoistway surveying arrangement of claim 4, wherein the measurement actuator further comprises a laser emitter for mounting on the hoistway pit and an optoelectronic position sensor disposed on the platform body, the optoelectronic position sensor cooperating with the laser emitter.

6. The elevator hoistway surveying apparatus according to claim 2, wherein the lifting drive mechanism includes a loading vehicle, a drive motor, a rope drum, a lifting wire rope, a guide wheel, and a hook, the drive motor is disposed on the loading vehicle and drivingly connected to the rope drum, one end of the lifting wire rope is wound around the rope drum, the guide wheel is disposed on the loading vehicle and disposed on one side of the rope drum, the lifting wire rope is wound around the guide wheel, and the other end of the lifting wire rope is connected to the hook;

7. The apparatus according to claim 6, wherein the posture-maintaining mechanism further includes an upper beam, a tension assembly, support legs, and a lower beam, the upper beam is movably connected to the lower beam through the tension assembly, the support legs are disposed at two ends of the upper beam and are used for being mounted on the top of the hoistway, and the first and second stoppers are respectively disposed on the lower beam.

8. The elevator hoistway surveying apparatus of claim 7, wherein the tension assembly includes a first screw threadedly coupled to the upper beam, a fastening nut threadedly coupled to the first screw and holding the first screw and the upper beam relatively stationary, an adjustment nut threadedly coupled between the first screw and the second screw, and a second screw fixedly secured to the lower beam.

9. The apparatus of claim 8, wherein the attitude maintaining mechanism further comprises a first guide assembly and a second guide assembly, the first guide assembly and the second guide assembly are respectively disposed on opposite sides of the tension assembly, the first guide assembly and the second guide assembly each comprise a guide rod and a guide sleeve, the guide sleeve is disposed in the predetermined hole of the upper beam, one end of the guide rod is fixedly disposed on the lower beam, and the other end of the guide rod is slidably disposed in the guide sleeve.

10. The elevator hoistway surveying arrangement according to any one of claims 1 to 9, further comprising a control box, a control terminal and a hand-held operator, the control box being in communication connection with the control terminal, the hand-held operator, the hoist drive mechanism and the measurement actuator, respectively.