CN114014207B

CN114014207B - Elevator well investigation device

Info

Publication number: CN114014207B
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: 2023-11-28
Anticipated expiration: 2041-11-23
Also published as: CN114014207A

Abstract

The application relates to an elevator hoistway surveying device, comprising: a lifting driving mechanism; the measuring platform is connected with the lifting driving mechanism and can move in a lifting manner in a well under the driving of the lifting driving mechanism; the gesture maintaining mechanism is respectively connected and fixed with the lifting driving mechanism and the well pit, and is in limit and guide 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. In the surveying process, the gesture retaining mechanism can play a role in limiting and guiding the measuring platform, ensures that the gesture of the measuring platform in an elevator shaft is stable, can not rotate or transversely shake due to the influence of factors such as airflow and mechanical vibration in the shaft, can ensure the levelness and the verticality of the measuring executing mechanism, and prevents low accuracy of surveying results caused by measuring deviation.

Description

Elevator well investigation device

Technical Field

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

Background

Generally, an elevator system is mainly composed of an elevator and a hoistway in which the elevator is operated to perform a transport of people or things between different floors. In order to ensure safe and reliable operation of the elevator, the elevator needs to be surveyed at first after the construction of the elevator shaft is completed so as to evaluate whether the construction quality of the elevator shaft meets the design requirement. In view of the problems that the traditional manual surveying method is time-consuming and labor-consuming, personnel safety cannot be guaranteed, and large deviation occurs due to the fact that measurement accuracy is easily affected by human errors, the automatic surveying device is increasingly adopted in the industry to finish related operations.

Currently, the more commonly used automatic surveying device mainly comprises an unmanned aerial vehicle surveying device and a traction surveying device. Unmanned aerial vehicle surveys device and tows survey device and all surveys the purpose through carrying on measuring mechanism realization well, but both work in high-rise even super high-rise well, all receive in the well air current, mechanical vibration's influence and take place rotation or horizontal deflection easily, lead to the gesture stability poor, 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 investigation device, aims at solving the problems of poor stability of the posture, large deviation of levelness and verticality of a measuring mechanism and low measuring precision in the prior art.

The present application provides an elevator hoistway surveying device, comprising:

a lifting driving mechanism;

the measuring platform is connected with the lifting driving mechanism and can move in a lifting manner in a well under the driving of the lifting driving mechanism;

the gesture maintaining mechanism is respectively connected and fixed with the lifting driving mechanism and the well pit, and is in limit and guide fit with the measuring platform; and

and the measuring executing mechanism is arranged on the measuring platform and is used for completing survey operation on the well.

The elevator well investigation device of the scheme is applied to occasions of carrying out investigation on an elevator well, when the elevator well investigation device is used, the lifting driving mechanism is arranged at the top of the elevator well, the measuring executing mechanism is arranged on the measuring platform, the measuring platform is reliably connected with the lifting driving mechanism, and finally the measuring platform is arranged in the elevator well and matched with the gesture maintaining mechanism. Along with lift actuating mechanism drive measurement platform rises or descends and remove in the elevator well, measurement actuating mechanism can accomplish each item and surveys the work to the elevator well, and at this in-process gesture hold mechanism can play spacing and direction effect to measurement platform, guarantee that measurement 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 influence, can guarantee measurement actuating mechanism's levelness and straightness that hangs down, prevent to lead to survey the result degree of accuracy low because of measuring deviation.

The technical scheme of the application is further described as follows:

in one embodiment, the gesture maintaining mechanism comprises a first limiting part and a second limiting part, the first limiting part and the second limiting part are arranged along the depth direction of the well at intervals in the horizontal direction, the measuring platform comprises a platform body and a first matching part and a second matching part which are respectively arranged on two opposite sides of the platform body, the first matching part is matched with the first limiting part in a sliding guide manner, and the second matching part is matched with the second limiting part in a sliding guide manner.

In one embodiment, the first matching piece and the second matching piece are both provided with sliding bearings, the first limiting piece and the second limiting piece are both provided with limiting steel wire ropes, and the limiting steel wire ropes pass through inner holes of the sliding bearings;

the measuring platform further comprises a position adjusting assembly, wherein 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 actuator includes a horizontal ranging module, an angle sensor, a camera, a first height sensor, and a second height sensor, where the horizontal ranging module, the angle sensor, the camera, and the first height sensor are respectively disposed on the platform body, and the second height sensor is configured to be installed in the pit of the hoistway.

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

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 hanging ring, and the hanging ring is arranged on the platform body and can be hooked and connected with the lifting hook.

In one embodiment, the gesture maintaining mechanism further comprises an upper beam, a tensioning assembly, supporting legs and a lower beam, the upper beam is close to or far away from the lower beam through the tensioning assembly, the supporting legs are arranged at two ends of the upper beam and used for being arranged at the top of the hoistway, and the first limiting piece and the second limiting piece are respectively arranged on the lower beam.

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

In one embodiment, the gesture maintaining mechanism further comprises a first guiding component and a second guiding component, the first guiding component and the second guiding component are respectively arranged on two opposite sides of the tensioning component, the first guiding component and the second guiding component respectively comprise a guide rod and a guide sleeve, the guide sleeve is arranged in a preset hole position of the upper cross beam, one end of the guide rod is fixedly arranged on the lower cross beam, and the other end of the guide rod is arranged in the guide sleeve in a sliding manner.

In one embodiment, the hoistway surveying device further comprises a control box, a control terminal and a hand-held manipulator, the control box being in communication with the control terminal, the hand-held manipulator, the lifting drive mechanism and the measurement actuator, respectively.

Drawings

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

In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application, 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 hoistway surveying device according to an embodiment of the present application installed in a hoistway;

FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;

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

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

fig. 5 is a state diagram of the attitude keeping mechanism of fig. 4 installed in an elevator hoistway;

FIG. 6 is a schematic view of the structure of the measuring platform in FIG. 1;

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

Reference numerals illustrate:

100. a hoistway surveying device; 10. a lifting driving mechanism; 11. a loading vehicle; 12. a driving motor; 13. a rope drum; 14. lifting the steel wire rope; 15. a guide wheel; 16. a lifting hook; 20. a measurement platform; 21. a platform body; 22. a first mating member; 23. a second mating member; 24. a position adjustment assembly; 25. a hanging ring; 30. a posture holding mechanism; 31. a first limiting member; 32. a second limiting piece; 33. an upper cross beam; 34. a tensioning assembly; 341. a first screw; 342. a fastening nut; 343. an adjusting nut; 344. a second screw; 35. a first guide assembly; 351. a guide rod; 352. guide sleeve; 36. a second guide assembly; 37. supporting feet; 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 emitter; 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. pit of well.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application 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 application. The present application 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 application, whereby the application 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 shown installed in a hoistway 200. Wherein the elevator hoistway 200 is a structure built in a height direction, and a hoistway cavity formed to extend in the height direction is used to provide a space required for the car to travel. The top of the elevator hoistway 200 is provided with a hole, and a steel wire rope of a traction system conveniently installed at the top of the elevator hoistway 200 extends into a hoistway cavity to be connected with a car.

Illustratively, the hoistway surveying device 100 in this embodiment includes: a lifting drive mechanism 10, a measurement platform 20, a posture holding mechanism 30, and a measurement actuator 40.

The measuring platform 20 is connected with the lifting driving mechanism 10, and the measuring platform 20 can lift and move in the well 200 under the driving of the lifting driving mechanism 10; the gesture maintaining mechanism 30 is respectively connected and fixed with the lifting driving mechanism 10 and the pit of the well 200, and the gesture maintaining mechanism 30 is in limit and guide fit with the measuring platform 20; the measurement actuator 40 is disposed on the measurement platform 20 and is used to perform a survey operation on the hoistway 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 of surveying the hoistway 200, and when in use, the lifting driving mechanism 10 is mounted on the top of the hoistway 200, the measuring actuator 40 is mounted on the measuring platform 20, the measuring platform 20 is connected to the lifting driving mechanism 10 reliably, and finally the measuring platform 20 is placed in the hoistway 200 and is engaged with the posture keeping mechanism 30. Along with the lifting driving mechanism 10 driving the measuring platform 20 to ascend or descend in the elevator well 200, the measuring executing mechanism 40 can finish various surveying works on the elevator well 200, and in the process, the gesture maintaining mechanism 30 can play a role in limiting and guiding the measuring platform 20, so that the gesture of the measuring platform 20 in the elevator well 200 is stable, rotation or transverse shaking cannot occur due to the influence of factors such as airflow and mechanical vibration in the elevator well 200, the levelness and the verticality of the measuring executing mechanism 40 can be ensured, and low surveying result accuracy caused by measuring deviation is prevented.

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

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

When in installation, the lower ends of the two limiting steel wire ropes are connected with an integrated expansion hook. The integrated expansion hook is used for being fixedly arranged in the pit of the elevator shaft 200 so as to fix one end of the limiting steel wire rope. The other ends of the spacing wire ropes are secured to the top of the elevator hoistway 200 so that both spacing wire ropes are reliably secured within the elevator hoistway 200. When the measuring platform 20 is driven by the lifting driving mechanism 10 to lift and move in the elevator hoistway 200, the limiting steel wire rope is in sliding fit with the sliding bearing, so that the effects of limiting the transverse movement and the rotation freedom degree of the measuring platform 20, ensuring the stable lifting or descending of the measuring platform 20, avoiding the rotation or transverse shaking caused by the action of air flow and ensuring the measuring precision of the measuring executing mechanism 40 can be achieved.

With continued reference to fig. 6 and 7, the measurement platform 20 further includes a position adjusting assembly 24, where 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 approach or separate from the platform body 21. By operating the position adjustment assembly 24, the mounting position of the slide bearing can be fine-tuned telescopically to ensure that the interior space of the slide bearing is coaxial with the spacing wire rope, thereby better guiding the vertical movement of the measurement platform 20 up and down within the hoistway 200.

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

With continued reference to fig. 2, 3 and 6, in addition, in some embodiments, the lifting driving mechanism 10 includes a loading truck 11, a driving motor 12, a rope drum 13, a lifting wire rope 14, a guiding wheel 15 and a lifting hook 16, wherein the driving motor 12 is disposed on the loading truck 11 and is in driving connection with the rope drum 13, one end of the lifting wire rope 14 is wound on the rope drum 13, the guiding wheel 15 is disposed on the loading truck 11 and is disposed on one side of the rope drum 13, the lifting wire rope 14 is wound on the guiding wheel 15, and the other end of the lifting wire rope 14 is connected with the lifting 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.

In operation, the lifting hook 16 is hooked with the lifting ring 25, so that the lifting driving mechanism 10 is connected with the platform body 21. The loading vehicle 11 is provided with a mobility as a main body for carrying the lift drive mechanism 10, and other components such as the drive motor 12 can be mounted, thereby facilitating the movement and transition of the lift drive mechanism 10.

When the driving motor 12 rotates positively, 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 up in the elevator shaft 200 through the lifting hook 16; instead, the hoist drive mechanism 10 may drive the measurement platform 20 and the measurement actuator 40 downward within the elevator hoistway 200 to complete a full 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 movement stability of the lifting steel wire rope 14 is ensured. Further, an anti-falling baffle (nylon material can be adopted, the blocking and protecting effect is good, and the manufacturing and using cost is low) is further arranged on the outer side of the guide wheel 15, and the anti-falling baffle can effectively prevent the lifting steel wire rope 14 from falling out of the rope groove of the rope drum 13.

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

Preferably, the hanging hook 16 is internally provided with a bearing, so that the hanging hook 16 can rotate 360 degrees, and the lifting wire rope 14 is prevented from rotating to be wound and knotted in the lifting process.

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

With continued reference to fig. 1 and 2, the measurement actuator 40 includes a horizontal ranging module 41, an angle sensor 42, a camera 43, a first height sensor 44, and a second height sensor 45, where the horizontal ranging 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 used for being installed in a pit of the hoistway 200.

In operation, the horizontal distance measuring module 41 is mounted on the platform body 21, and can complete cross-section data acquisition of the hoistway 200 for measuring the horizontal distance of the hoistway 200. The angle sensor 42 is mounted on the platform body 21, and is used for measuring the inclination angles of the plane of the platform 20 in the X-axis and Y-axis directions, that is, the inclination angles of the cross section of the hoistway 200 and the vertical direction, which are acquired by the horizontal ranging module 41. The camera 43 is mounted on the platform body 21 for image acquisition of the hoistway 200. A first height sensor 44 is mounted on the platform body 21 for detecting the distance of the horizontal ranging module 41 to the top of the hoistway 200. A second height sensor 45 is mounted in the pit of the hoistway 200 to detect the distance of the horizontal ranging module 41 from the top of the hoistway 200.

Further, the measurement actuator 40 further includes a laser emitter 46 and a photoelectric position sensor 47, the laser emitter 46 is configured to be mounted in a pit of the hoistway 200, the photoelectric position sensor 47 is disposed 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 emitter 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, for example, a laser transmitter, a light spot receiving screen and a central short-focus camera 43 are included, and the camera 43 collects and recognizes the light spot position on the receiving screen.

With continued reference to fig. 4 and 5, in some embodiments, the posture maintaining 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 close to or far away from the lower beam 38 through the tensioning assembly 34, the supporting leg 37 is disposed at two ends of the upper beam 33 and is used for being mounted on 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 supporting legs 37 are firmly supported with the elevator shaft 200, and the posture maintaining mechanism 30 can be reliably installed at the top of the elevator shaft 200 and close to the hole. The supporting legs 37 in this embodiment are of a cup structure, have a large contact area with the elevator shaft 200, and are capable of generating a certain vacuum force to prevent the posture keeping mechanism 30 from being displaced sideways.

Because the upper beam 33 is fixed at the top of the elevator shaft 200 through the supporting legs 37, the lower beam 38 is connected with the upper beam 33 through the tensioning assembly 34, and the lower beam 38 can be driven to ascend or descend through adjusting the tensioning assembly 34, the effect of tensioning the lifting steel wire rope 14 is achieved, so that the lifting steel wire rope 14 is kept in a tightening state after deformation and elongation during installation or long-term use, the lifting steel wire rope 14 is tensioned to resist external environmental influences such as vibration and air flow, and the vertical and horizontal deviation of measurement is ensured to be in 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, where the first screw 341 is screwed onto the upper beam 33, the fastening nut 342 is screwed onto 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 onto the lower beam 38.

During installation, the first screw 341 is in threaded connection with the upper beam 33 and can be locked and fixed through the fastening nut 342, so that the hanging installation purpose of the adjusting nut 343 can be achieved. When the lifting steel wire rope 14 needs to be tensioned, a worker at the top of the elevator shaft 200 rotates the adjusting nut 343, the first screw 341 is not moved, and the second screw 344 can linearly lift and move with a pitch stroke of 2 times, 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 adopt 30-degree trapezoidal screw rods which are most suitable for bearing axial load and have self-locking function; the size of the upper and lower nut adjusting handles is increased to be N times of the pitch diameter of the screw, and when the tightening force is applied for 1N, the axial force of the screw is also amplified in multiple, so that the adjusting operation can be performed with smaller force.

Further, the gesture maintaining mechanism 30 further includes a first guiding component 35 and a second guiding component 36, the first guiding component 35 and the second guiding component 36 are respectively disposed on two opposite sides of the tensioning component 34, the first guiding component 35 and the second guiding component 36 each include a guide rod 351 and a guide sleeve 352, the guide sleeve 352 is disposed in a preset hole position 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 rotated, the preset first guide assembly 35 and second guide assembly 36 limit and guide the second screw 344, so that the second screw 344 does not rotate and is strictly moved linearly in the axial direction.

The hoistway surveying device 100 further includes a connection plate for connecting the loading car 11 to the upper beam 33 of the attitude keeping mechanism 30, and supports the attitude keeping mechanism 30 by the lift driving mechanism 10. Alternatively, the connection plate is fixed to the loading truck 11 and the upper cross member 33 by any one of screw connection, welding, snap connection, and the like.

With continued reference to fig. 1, in accordance with any of the above embodiments, the hoistway surveying device 100 further includes a control box 50, a control terminal 60, and a hand-held operator 70, wherein the control box 50 is communicatively connected to the control terminal 60, the hand-held operator 70, the lifting drive mechanism 10, and the measurement actuator 40, respectively. When the automatic surveying device works, the control box 50 is matched with the control terminal 60, the lifting driving mechanism 10 and the measuring executing mechanism 40 in a communication mode, automatic surveying operation can be achieved, and the effects of improving quality, enhancing efficiency and reducing cost are achieved.

The hand-held operator 70 can enable staff to perform manual intervention control according to actual working conditions, so that different survey requirements are met. In an emergency, such as when an abnormality of the hoistway 200 is manually monitored, the hand-held operator 70 has up, down, and stop function buttons, so that control of the hoistway 200 surveying device can be forcibly performed when an emergency is found.

The control box 50 is installed on the loading vehicle 11 and consists of a control box 50 cabinet body, a driving power supply, a PLC main control, a motor driving controller, various switch buttons and the like. The control box 50 functions to control the hoistway surveying device 100, and is responsible for the functions of measuring device operation speed adjustment, ascending, descending, stopping, battery usage display, and warning in abnormal situations. The control box 50 has associated function buttons thereon.

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 a vertical up-and-down running driving force and a speed adjusting function for the measuring platform 20. Various switch buttons, such as a power switch, a stop/start button, are responsible for power control, start, stop, and motor scram of the device, etc. The carrier up and down buttons are the up and down operation work buttons of the measurement platform 20, or the landing/stopping function in abnormal state. The audible and visual alarm is used for driving the ultralow prompting function of the electric quantity of the power supply. The battery usage detector is used for displaying the battery power.

In addition, the elevator hoistway surveying device 100 further comprises a communication transmission device 90, and the device is controlled in a wireless mode through Wifi (2.4/5.8 Ghz) (increased PA) (transmission distance 0-200 m), and various devices are flexibly connected in an expanding mode by depending on widely applied WIFI protocols and an Ethernet interface of the communication device.

Further, the hoistway surveying device 100 further includes an operation module, which is mounted on the measuring platform 20 or in the cabinet of the control box 50, and can perform comprehensive operation based on the measurement data of the horizontal ranging 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.

In this embodiment, the hoistway surveying device 100 is specifically installed at the top of the hoistway 200, and works through the hole at the top. In other embodiments, for machine room and machine room less hoistway 200, the upper and lower door opening positions may be utilized, each of which extends out of a platform mounting survey device, the platform being supported by the ground outside the door opening and clamped in the door frame position.

When the surveying device is arranged at a door opening, the surveying device is arranged near the door opening as much as possible in consideration of operation convenience and safety, meanwhile, the limitation of the maximum and minimum transmission distance of the ranging sensor is considered, the same horizontal ranging module 41 is possibly incompatible with the limitation of the maximum and minimum ranging of the well 200 under the condition that the ranging accuracy is ensured, and a short-stroke horizontal ranging module 41 can be additionally arranged to be specially used for the door opening short-stroke position.

It should be noted that, the tension of the lifting 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 wire rope 14 to adjust the offset to a proper position for measurement. Further description: assuming that the air flow and other causes cause the horizontal thrust Fw generated by the measuring platform 20 to push the lifting wire rope 14 to move θ, fw is equal to the resultant force Fr of the tensioning force F1 of the lifting wire rope 14 and the rope tension force F1 in the balanced state, when the tensioning force F1 is increased, the lifting wire rope 14 moves θ becomes smaller, that is, the offset amount from the vertical reference line becomes smaller.

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 application, which are described in detail and are not to be construed as limiting the scope of the application. 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 application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

In the description of the present application, 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 application 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 application.

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 application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, 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 application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, 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

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

a lifting driving mechanism;

the gesture maintaining mechanism is respectively connected and fixed with the lifting driving mechanism and the well pit, and is in limit and guide fit with the measuring platform; the attitude maintaining mechanism comprises a first limiting piece and a second limiting piece, the first limiting piece and the second limiting piece are arranged in an extending mode along the depth direction of the well and are distributed at intervals in the horizontal direction, the measuring platform comprises a platform body, a first matching piece and a second matching piece, the first matching piece and the first limiting piece are in sliding guide fit, and the second matching piece and the second limiting piece are in sliding guide fit; the first matching piece and the second matching piece are both provided with 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 bearings, and the position adjusting assembly is used for driving the sliding bearings to be close to or far away from the platform body; and

2. The hoistway surveying device according to claim 1, wherein the first and second stoppers are each provided as a limit wire rope passing through an inner bore of the sliding bearing.

3. The elevator hoistway surveying device according to claim 1, wherein the position adjusting assembly is composed of a guide sleeve, a fixed ring, a telescopic guide rod and the like, and the sliding bearing can be driven to be close to the platform body or far from the platform body through the fixed ring by telescopic movement of the telescopic guide rod.

4. The elevator hoistway surveying device of claim 2, wherein the measurement actuator 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 being disposed in the landing body, respectively, and the second height sensor being configured to be mounted in the hoistway pit.

5. The hoistway surveying device of claim 4, wherein the measurement actuator further comprises a laser emitter for mounting in the hoistway pit and a photoelectric position sensor disposed on the landing body, the photoelectric position sensor cooperating with the laser emitter.

6. The hoistway surveying device according to claim 2, wherein the lifting drive mechanism includes a loading car, a drive motor, a rope drum, a lifting wire rope, a guide wheel and a hook, the drive motor is provided on the loading car and is in driving connection with the rope drum, one end of the lifting wire rope is wound on the rope drum, the guide wheel is provided on the loading car and is placed on one side of the rope drum, the lifting wire rope is wound on the guide wheel, and the other end of the lifting wire rope is connected with the hook;

7. The hoistway surveying device according to claim 6, wherein the attitude maintaining mechanism further comprises an upper beam, a tensioning assembly, a supporting leg and a lower beam, the upper beam is connected with the lower beam in a movable manner by the tensioning assembly, the supporting leg is disposed at both ends of the upper beam and is used for being mounted at the top of the hoistway, and the first limiting member and the second limiting member are disposed on the lower beam, respectively.

8. The hoistway surveying device of claim 7, wherein the tensioning assembly includes a first screw threaded onto the upper beam, a fastening nut threaded onto the first screw and holding the first screw and the upper beam relatively stationary, an adjustment nut threaded between the first screw and the second screw, and a second screw secured to the lower beam.

9. The hoistway surveying device according to 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 tensioning 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 a preset hole position 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 hoistway surveying device of any of claims 1 to 9, further comprising a control box, a control terminal and a hand-held operator, the control box being communicatively connected to the control terminal, the hand-held operator, the lifting drive mechanism and the measurement actuator, respectively.