Adjustable digitized elevator rail gauge
By introducing electronic distance measuring devices and locking devices into the elevator guide ruler, the measurement accuracy and applicability problems of traditional guide rulers are solved, realizing high-precision, digital elevator guide rail measurement and calibration, adapting to various shaft widths, and reducing construction errors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG TEDA ELEVATOR CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional elevator alignment rulers suffer from poor measurement accuracy, poor applicability, and the inability to digitize measurement results. They are also insensitive to line errors, leading to large construction errors and failing to provide accurate data.
It employs an electronic distance measuring device and a locking device, including an electronic distance measuring instrument, a main controller, a display, and a locking device, to achieve high-precision measurement and digital output of elevator guide rails, and adapts to different shaft widths through an adjustable main crossbeam.
It improves measurement accuracy and applicability, reduces human error, provides digital measurement results, shortens construction time, and ensures high-precision calibration of elevator guide rails.
Smart Images
Figure CN224317008U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of measuring instrument technology, and relates to a measuring tool used in elevator guide rail installation, specifically an adjustable digital elevator guide rail ruler. Background Technology
[0002] Elevator track gauges are core measuring tools in elevator installation, used to correct the verticality, gauge, coplanarity, and torsion of the guide rails. Their accuracy directly affects the smoothness and safety of elevator operation. Traditional elevator track gauges are generally of a mechanical contact structure, relying on the physical contact between the jaws and the guide rails. Verticality is checked using a bubble level or magnetic plumb line, and the horizontal distance deviation between the guide rail working surface and the template line is measured using a scale. With the increasing prevalence of high-rise buildings, traditional track gauges have revealed significant shortcomings in terms of measurement accuracy and applicability, as detailed below:
[0003] Firstly, traditional elevator track gauges rely on visual alignment with the template line for reading or positioning. Different elevator track gauges, different construction workers, or the same person in different states, as well as different lighting conditions or prolonged exposure to strong light, will inevitably produce visual errors, resulting in poor measurement accuracy, which can be as high as 5mm or even 10mm.
[0004] Secondly, considering the low on-site adjustment accuracy of traditional track gauges, the measuring heads at both ends are usually welded and fixed to both ends of the main crossbeam. The distance between the two measuring heads is fixed, which means that the track gauge is only suitable for the installation of elevator guide rails in a shaft of a certain width (the distance between the two elevator guide rails is adapted to the distance between the two measuring heads), resulting in poor applicability.
[0005] Thirdly, the jaws in traditional guide rulers usually use fixed-size slots and are fixed to the guide rail with bolts. The fixed-size slots make it impossible to adapt to more guide rail specifications, resulting in poor applicability.
[0006] Fourth, traditional alignment rulers can only mechanically adjust according to the template line, and are not sensitive to the errors, swaying and bending of the template line itself, which can easily lead to cumulative errors. Therefore, the requirements for the template line are extremely high, and rework often occurs in actual construction due to errors in the template line.
[0007] Fifth, traditional alignment rulers rely on human eyes to position the gauges using graduations or tiny notches, resulting in significant repetitive errors. Therefore, they can only provide relatively accurate (relative to precision requirements) qualitative data, not precise numerical values. Consequently, it is impossible to conduct subsequent statistical analysis and improvements based on this data. Utility Model Content
[0008] This invention provides an adjustable digital elevator alignment ruler, which aims to solve the problems of poor measurement accuracy, poor applicability, and inability to digitize measurement results of traditional alignment rulers.
[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an adjustable digital elevator guide rail ruler, comprising a main beam and measuring heads assembled at both ends of the main beam, wherein the measuring heads are equipped with an electronic distance measuring device and a locking device for locking the elevator guide rail.
[0010] The electronic ranging device includes an electronic rangefinder oriented toward a calibration profile, a main controller electrically connected to the electronic rangefinder, and a display electrically connected to the main controller.
[0011] As a limitation of this utility model, the electronic distance measuring instrument includes two instruments, which are arranged at a fixed angle and are used to measure or analyze the front-back position and left-right position of the elevator guide rail, respectively.
[0012] As a further limitation of this utility model, the electronic ranging device also includes a transmitter electrically connected between the electronic ranging instrument and the main controller.
[0013] As another limitation of this utility model, the measuring head has a slot for guiding the calibration sample line; the electronic rangefinder is located at the slot.
[0014] As a further limitation of this utility model, the main crossbeam or the measuring head is equipped with a horizontal measuring device.
[0015] As a further limitation of this utility model, the level measuring device is a bubble level or an electronic tilt sensor electrically connected to the main controller.
[0016] As a third limitation of this utility model, the measuring head has a positioning surface for conforming to the web plane and the top surface of the web of the elevator guide rail, so as to achieve precise positioning of the measuring head on the elevator guide rail.
[0017] As a further limitation of this utility model, the locking device includes a connecting rod with one end hinged to the measuring head, a threaded rod with one end hinged to the free end of the connecting rod, a locking block passing through the threaded rod, and a nut threadedly assembled on the threaded rod, wherein the nut is located outside the locking block to restrict the locking block from disengaging from the threaded rod.
[0018] The locking block has a notch for engaging the flange of the elevator guide rail.
[0019] As a further limitation of this utility model, a plurality of first assembly holes are provided at intervals along the length direction on both ends of the main crossbeam.
[0020] The measuring head has a connecting rod, and the connecting rod is provided with a plurality of second mounting holes that are adapted to the first mounting hole at intervals along the length direction;
[0021] It also includes multiple bolts for passing through the first assembly hole and the second assembly hole to connect the connecting rod to the main crossbeam.
[0022] As a further limitation of this utility model, the distance between any two adjacent first assembly holes on one end of the main body beam is 40mm; the distance between any two adjacent first assembly holes on the other end of the main body beam is 30mm.
[0023] By adopting the above-mentioned technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:
[0024] (1) This utility model innovatively uses an electronic distance measuring device to measure the horizontal distance deviation between the working surface of the guide rail and the calibration sample line. Compared with the traditional method of measuring with a ruler and reading manually, the measurement efficiency is higher, human error is effectively reduced, the limitation of manual reading is broken, and the measurement accuracy is improved (it can achieve an accuracy of ±0.1mm or even higher).
[0025] (2) This utility model uses an electronic distance measuring device for measurement, which has extremely high repeatability; at the same time, the measurement results are digitally output by the display, which provides a digital basis for the subsequent design, construction, statistical digitization and other work that may be developed for the construction process of correcting the guide rail.
[0026] (3) Since this utility model can perform digital high-precision measurement, it can correct the error of the calibration sample line itself and the error of vibration in a timely manner or even in advance, which can greatly improve the calibration accuracy of the elevator guide rail.
[0027] (4) In this utility model, both ends of the main beam are equipped with measuring heads, which can simultaneously measure the horizontal distance deviation between the working surface of the guide rail and the template on both sides of the guide rail. In turn, it can be used to correct the alignment and guide rail spacing of the elevator guide rails on both sides. Compared with the traditional single-side guide rail calibration construction method, this utility model effectively shortens the guide rail calibration time and improves the construction efficiency.
[0028] (5) The measuring head in this utility model has a positioning surface for fitting the web plane and top surface of the elevator guide rail, which enables the measuring head to be vertically positioned on the elevator guide rail, thereby eliminating spatial posture errors, false X-direction or Y-direction offsets, ensuring reliable measurement results, and creating favorable conditions for the sub-millimeter level installation standard of high-speed elevators.
[0029] (6) The locking device used in this utility model can adapt to guide rails of various thicknesses, so as to realize the stable installation of this utility model on the guide rail and make it less likely to fall off during the adjustment and calibration process.
[0030] (7) In this utility model, the main crossbeam and the measuring head are connected by a simple mechanical connection (bolts + assembly holes) to achieve flexible length changes, which can adapt to a variety of shaft widths and has wider applicability. At the same time, the overlapping area and multiple bolt connections provide a strong and stable node, which makes the structure stronger and stiffer and more reliable.
[0031] (8) In this utility model, the spacing of the first assembly holes on one end of the main beam is set to 40mm, and the spacing of the first assembly holes on the other end is set to 30mm. By using the differential hole spacing, a 10mm adjustment step is cleverly achieved. Without significantly increasing the cost and structural complexity, the length adjustment accuracy of this utility model is improved to a more precise level. Therefore, for shafts of different widths, this utility model can always ensure that the spacing between the two measuring heads is adapted to the spacing between the two elevator guide rails, so that the positioning surface of the measuring head is tightly attached to the web plane and top surface of the elevator guide rail, thereby ensuring that the measuring head is vertically positioned on the elevator guide rail.
[0032] It should be noted that when moving only a 40mm hole, the overlap changes by +40mm or -40mm, and the overall length changes by ΔL = ±40mm; when moving only a 30mm hole, the overlap changes by +30mm or -30mm, and the overall length changes by ΔL = ±30mm; when moving a 40mm hole in the shortening direction and simultaneously moving a 30mm hole in the lengthening direction, the net overlap changes by -10mm, and the overall length changes by ΔL = -10mm; conversely, when moving a 30mm hole in the shortening direction and simultaneously moving a 40mm hole in the lengthening direction, the net overlap changes by +10mm, and the overall length changes by ΔL = +10mm.
[0033] In summary, this utility model is easy to operate, has low requirements for construction personnel and the construction environment, and has high track calibration accuracy. It can adapt to various construction environments and is suitable for use in elevator guide rail installation. It is used to measure the horizontal distance deviation between the working surface of the guide rail and the calibration template. Furthermore, it innovatively uses digital output for the measurement results, thereby providing construction personnel with digital judgment basis when correcting the verticality, gauge, coplanarity, and torsion of the guide rail. At the same time, it provides a foundation for the digitalization of subsequent design, construction, statistical and other possible development work. Attached Figure Description
[0034] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0035] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0036] Figure 2 This is a top view showing the structural relationship of an embodiment of the present utility model;
[0037] Figure 3 This is a schematic diagram of the main crossbeam in an embodiment of this utility model;
[0038] Figure 4 This is a schematic diagram of the measuring head in an embodiment of the present invention;
[0039] Figure 5 This is a schematic diagram of the measuring head from another angle in an embodiment of this utility model;
[0040] Figure 6 This is a schematic diagram of the measuring head at the third angle in an embodiment of this utility model;
[0041] Figure 7 This is a top view showing the structural relationship of the measuring head in an embodiment of this utility model;
[0042] Figure 8 This is a schematic diagram of the application structure of an embodiment of the present utility model;
[0043] Figure 9 This is a partial schematic diagram showing the application state of an embodiment of this utility model;
[0044] In the diagram: 1. Main beam; 2. Measuring head; 3. First mounting hole; 4. Measuring head body; 5. Connecting rod; 6. Second mounting hole; 7. Groove; 8. Positioning surface; 9. Display; 10. Electronic rangefinder; 11. First cover plate; 12. Second cover plate; 13. Locking device; 14. Connecting rod; 15. Threaded rod; 16. Locking block; 17. Nut; 18. Notch; 19. Elevator guide rail; 20. Calibration template. Detailed Implementation
[0045] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention.
[0046] This embodiment discloses an adjustable digital elevator track gauge, such as... Figures 1 to 2 As shown, this embodiment includes a main crossbeam 1 and a measuring head 2.
[0047] The main crossbeam 1 is the skeleton of this embodiment, and is usually made of a lightweight, strong, and non-deformable material, such as high-strength aluminum alloy profile. The main crossbeam 1 is a perfectly parallel rod, and its length is usually designed to be a standard length (e.g., 1.6m). Multiple first mounting holes 3 are spaced apart along the length direction at both ends of the main crossbeam 1. In this embodiment, the main crossbeam 1 has multiple first mounting holes 3 spaced apart along the length direction on two adjacent sides at its ends, specifically as follows... Figure 3 As shown.
[0048] In this embodiment, the hole spacing of the first mounting holes 3 on one end of the main beam 1 is 40mm, and the hole spacing of the first mounting holes 3 on the other end is 30mm. The 10mm adjustment step is cleverly achieved through the differentiated hole spacing. Of course, other hole spacings can also be selected depending on the situation, such as a combination of 20mm and 10mm, a combination of 50mm and 30mm, a combination of 40mm and 20mm, etc.
[0049] Measuring head 2 is a key measuring component in this embodiment. It comprises two heads, each mounted at one end of the main crossbeam 1. The two measuring heads 2 are completely symmetrical in structure; this embodiment uses one as an example to illustrate its specific structure. Figures 4 to 7 As shown, the measuring head 2 includes a measuring head body 4 and a connecting rod 5 fixed to the measuring head body 4. The connecting rod 5 uses angle steel, a material commonly found in the prior art, and has multiple second mounting holes 6 spaced along its length on both sides. In this embodiment, the spacing between the second mounting holes 6 is 20mm, but other spacings, such as 10mm, can be selected depending on the actual situation. The second mounting holes 6 are adapted to the first mounting holes 3 of the main beam 1. By partially overlapping the two and inserting bolts, the connecting rod 5 can be connected to the main beam 1.
[0050] The measuring head body 4 is a structure made of steel plate that has been cut and welded together, such as... Figures 4 to 7 As shown, the measuring head body 4 has a slot 7 for guiding the calibration template 20, and a positioning surface 8 for fitting the web plane and top surface of the elevator guide rail 19. The positioning surface 8 is a right-angled surface, and the measuring head 2 is vertically positioned on the elevator guide rail 19 by closely fitting with the web plane (i.e., the web side surface) and the top surface of the web.
[0051] The measuring head body 4 is also equipped with an electronic distance measuring device for measuring the horizontal distance deviation between the working surface of the guide rail and the calibration template 20. The electronic distance measuring device includes an electronic distance meter 10, a transmitter, a main controller, and a display 9. There are two electronic distance meters 10 arranged at a fixed angle (90° in this embodiment), achieving full-dimensional monitoring of the position and attitude of the elevator guide rail 19 through an orthogonal ray layout. Both electronic distance meters 10 are fixed in the slot 7 of the measuring head body 4, located on the bottom surface of the measuring head body 4. The measuring ray of one electronic distance meter 10 is perpendicular to the web plane (X-direction) of the elevator guide rail 19 and faces the calibration template 20; the measured data serves as a reference for construction personnel to correct the left-right position of the elevator guide rail 19. The measuring ray of the other electronic distance meter 10 is perpendicular to the flange plane (Y-direction) of the elevator guide rail 19 and faces the calibration template 20; the measured data serves as a reference for construction personnel to correct the front-back position of the elevator guide rail 19. In this embodiment, the electronic rangefinder 10 is a laser rangefinder in the prior art.
[0052] The transmitter is fixed on the top surface of the measuring head body 4 and electrically connected between the electronic rangefinder 10 and the main controller. It is used to process the signal from the electronic rangefinder 10 and transmit it to the main controller.
[0053] To prevent collision damage to the transmitter and electronic rangefinder 10 during use, the measuring head body 4 in this embodiment is provided with a first cover plate 11 for encapsulating the transmitter and a second cover plate 12 for encapsulating the electronic rangefinder 10.
[0054] The main controller is integrated into and electrically connected to display 9. It processes the transmitter signals and displays them to the construction personnel via display 9. Display 9 is bolted to the overlapping area of the main beam 1 and the connecting rod 5, as shown below. Figure 1 or Figure 2 As shown.
[0055] The measuring head body 4 is also equipped with a locking device 13 for locking the elevator guide rail 19. For example... Figures 4 to 7 As shown, the locking device 13 includes a connecting rod 14, a threaded rod 15, a locking block 16, and a nut 17. The connecting rod 14 is a bent rod, with one end hinged to the measuring head body 4 and the other end hinged to the end of the threaded rod 15. The locking block 16 passes through the threaded rod 15 and can slide freely along the length of the threaded rod 15. The locking block 16 has a notch 18 for engaging the flange of the elevator guide rail 19. The nut 17 is threaded onto the threaded rod 15 and located outside the locking block 16, used to prevent the locking block 16 from disengaging from the threaded rod 15. In this embodiment, the nut 17 is a wing nut.
[0056] To ensure that the elevator guide rails 19 are installed horizontally within the shaft, this embodiment also includes a level measuring device. The level measuring device can be a bubble level or an electronic tilt sensor electrically connected to the main controller, and can be mounted on the main beam 1 or the measuring head 2. In this embodiment, the level measuring device is a bubble level mounted on the main beam 1.
[0057] like Figure 8 and Figure 9 As shown, this embodiment needs to be installed between two elevator guide rails 19 in the shaft for use. Specifically: First, adjust the overall length of this embodiment to match the spacing of the two elevator guide rails 19, and place this embodiment horizontally between the two elevator guide rails 19. At the same time, refer to the level measuring device to ensure that this embodiment is in a horizontal state (this is to ensure that the measuring heads 2 at both ends are at the same height after installation). Then, place the slot 7 of the measuring head 2 at the corresponding calibration template 20, and attach the positioning surface 8 of the measuring head 2 to the web plane and top surface of the corresponding elevator guide rail 19. Next, adjust the position of the locking block 16 in the locking device 13 so that its notch 18 engages with the flange of the elevator guide rail 19. Then, tighten the nut 17 to fix the position of the locking block 16. Thus, with the cooperation of the positioning surface 8 and the locking block 16, the measuring head 2 can be installed and fixed on the elevator guide rail 19.
[0058] Finally, based on the data displayed on monitor 9, the elevator guide rail 19 can be calibrated.
[0059] It should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An adjustable digital elevator track gauge, characterized in that: It includes a main crossbeam and measuring heads assembled at both ends of the main crossbeam. The measuring heads are equipped with an electronic distance measuring device and a locking device for locking the elevator guide rail. The electronic distance measuring device includes an electronic distance measuring instrument oriented toward a calibration line, a main controller electrically connected to the electronic distance measuring instrument, and a display electrically connected to the main controller.
2. The adjustable digital elevator track gauge according to claim 1, characterized in that: The electronic distance measuring instrument includes two instruments, which are arranged at a fixed angle and are used to measure or analyze the front-back position and left-right position of the elevator guide rail, respectively.
3. The adjustable digital elevator track gauge according to claim 2, characterized in that: The electronic ranging device also includes a transmitter electrically connected between the electronic ranging instrument and the main controller.
4. The adjustable digital elevator track gauge according to any one of claims 1-3, characterized in that: The measuring head has a slot for guiding the calibration sample line; the electronic rangefinder is located at the slot.
5. The adjustable digital elevator track gauge according to claim 4, characterized in that: The main beam or the measuring head is equipped with a horizontal measuring device.
6. The adjustable digital elevator track gauge according to claim 5, characterized in that: The level measuring device is a bubble level or an electronic tilt sensor electrically connected to the main controller.
7. The adjustable digital elevator track gauge according to any one of claims 1-3, 5, and 6, characterized in that: The measuring head has a positioning surface for conforming to the web plane and the top surface of the web of the elevator guide rail, so as to achieve precise positioning of the measuring head on the elevator guide rail.
8. The adjustable digital elevator track gauge according to claim 7, characterized in that: The locking device includes a connecting rod with one end hinged to the measuring head, a threaded rod with one end hinged to the free end of the connecting rod, a locking block passing through the threaded rod, and a nut threaded onto the threaded rod. The nut is located outside the locking block to prevent the locking block from disengaging from the threaded rod. The locking block has a notch for engaging the flange of the elevator guide rail.
9. The adjustable digital elevator track gauge according to any one of claims 1-3, 5, 6, and 8, characterized in that: Multiple first assembly holes are provided at intervals along the length direction on both ends of the main crossbeam. The measuring head has a connecting rod, and the connecting rod is provided with a plurality of second mounting holes that are adapted to the first mounting hole at intervals along the length direction; It also includes multiple bolts for passing through the first assembly hole and the second assembly hole to connect the connecting rod to the main crossbeam.
10. The adjustable digital elevator track gauge according to claim 9, characterized in that: The distance between any two adjacent first assembly holes on one end of the main crossbeam is 40mm; the distance between any two adjacent first assembly holes on the other end of the main crossbeam is 30mm.