Auxiliary measuring device for perpendicularity of elevator shaft

Abstract

The utility model discloses an elevator shaft verticality auxiliary measuring device, which belongs to the technical field of building construction, and adopts the technical scheme that the elevator shaft verticality auxiliary measuring device comprises a rack, a rotating rod is rotationally arranged on the rack, a laser transmitter is fixedly arranged at the tail end of the rotating rod, and a rotating shaft of the rotating rod is concentric with an elevator shaft; each measuring support comprises a circular plate concentric with the rotating shaft, a circular adjusting plate is arranged on the circular plate through a spherical hinge, an annular plate is fixedly arranged on the outer wall of the circular plate through a plurality of external connecting rods, three leveling screws are arranged on the annular plate in a threaded connection mode, and supporting arms are symmetrically arranged on the outer wall of the annular plate. The tail ends of the supporting arms are fixed to the inner walls of the elevator shaft, four scales corresponding to the inner walls of the elevator shaft one to one are arranged on the circular adjusting plate in a sliding mode, and the tail ends of the scales can abut against the corresponding inner walls. The beneficial effect of the utility model is that the elevator shaft verticality auxiliary measuring device is provided.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and specifically relates to an auxiliary measuring device for the verticality of elevator shafts. Background Technology

[0002] During elevator installation, the verticality of the elevator shaft is one of the key parameters ensuring safe elevator operation. Deviations in the verticality of the elevator shaft's inner wall can lead to difficulties in installing the elevator guide rails, and may even cause vibration or jamming during operation, potentially resulting in serious safety accidents. Therefore, after the elevator shaft construction is completed, its verticality must be measured and corrected. Traditional methods for measuring elevator shaft verticality typically rely on manual measurement using a plumb line or laser rangefinder, with the verticality calculated later based on the measured values. However, plumb line measurements are easily affected by environmental factors (such as wind and vibration), leading to unsatisfactory measurement results. Using a laser rangefinder requires measuring multiple surfaces individually, which is time-consuming. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary measuring device for the verticality of elevator shafts.

[0004] This utility model is achieved through the following measures: an auxiliary measuring device for the verticality of an elevator shaft, characterized in that it includes a frame set at the bottom of the elevator shaft, a rotating rod rotatably mounted on the frame, an upward-emitting laser emitter fixedly mounted at the end of the rotating rod, and the rotating shaft of the rotating rod being concentric with the elevator shaft;

[0005] It also includes several measuring brackets installed inside the elevator shaft. Each measuring bracket includes a circular plate concentric with the rotating shaft. A circular adjusting plate is installed on the circular plate via a ball joint. An annular plate is fixed to the outer wall of the circular plate via several external rods. Three leveling screws are threadedly connected to the annular plate. The upper ends of the leveling screws can abut against the circular adjusting plate. Support arms are symmetrically arranged on the outer wall of the annular plate. The ends of the support arms are fixed to the inner wall of the elevator shaft. Four scales corresponding to the inner wall of the elevator shaft are slidably installed on the circular adjusting plate. The ends of the scales can abut against the corresponding inner walls.

[0006] The top view projection of the scale section located between the circular adjustment plate and the inner wall of the elevator shaft does not overlap with other components on the measuring bracket, and the laser from the laser emitter passes through this section.

[0007] It also includes a spirit level fixed to the circular adjustment plate. The spirit level design allows the horizontal state of the circular adjustment plate to be determined intuitively, improving the efficiency of leveling.

[0008] The frame includes a base plate and several support legs disposed below the base plate. A rotating shaft is rotatably mounted on the base plate. A rotating rod is mounted at the upper end of the rotating shaft, and its lower end is connected to a motor with a speed reducer. The motor is fixed to the base plate. The motor with the speed reducer can automatically drive the rotating rod to rotate, achieving the circumferential movement of the laser emitter.

[0009] The support arm includes a horizontal bar and a vertical bar at the end of the horizontal bar. A connecting screw is threaded onto the vertical bar. An L-shaped steel plate for mounting the connecting screw is pre-embedded in the inner wall of the elevator shaft. The connecting screw passes through the vertical part of the L-shaped steel plate and is fixed on both sides by nuts. The design of the support arm and connecting screw allows the measuring bracket to be firmly fixed to the inner wall of the elevator shaft, and the connecting screw can also be used for elevator shafts of different sizes.

[0010] The horizontal and vertical poles are generally located on both sides of the scale. This design, with the horizontal and vertical poles positioned on both sides of the scale, prevents the support arms from obstructing the laser beam, ensuring that the laser can pass smoothly through the scale section.

[0011] The circular adjusting plate has four protrusions evenly distributed around its circumference. Each protrusion has a slide rail, and the scale is slidably mounted within the slide rail. A screw is threadedly connected to the protrusion and presses against the scale.

[0012] Usage: Measure the bottom of the elevator shaft to determine its center (this can be obtained by measuring the centerline of two adjacent inner walls). Move the frame so that the center of the rotating shaft aligns with the previously measured center. Then obtain the distance from the center of the laser emitter's aperture to the four inner walls (when the elevator shaft is square, the four distances are the same; when the elevator shaft is rectangular, the relative distances between the inner walls are the same).

[0013] Several measuring brackets are set at intervals along the elevator shaft (usually one every 3-5 meters). After the measuring brackets are installed, rotate the leveling screw to keep the circular adjusting plate horizontal. This can be determined by using a bubble level or other level. Slide the scale so that the end of the scale rests against the inner wall perpendicular to it. After all the scales are adjusted, rotate the rotating rod to drive the laser emitter to rotate. The laser beam will hit the corresponding scale. At this time, read the values ​​on all the scales.

[0014] Calculate the difference between the read value and the distance between the center of the aperture on the laser emitter and the four inner walls. Finally, calculate the verticality using the difference and the height from the scale to the bottom of the elevator shaft.

[0015] The beneficial effects of the technical solution provided by this utility model embodiment are: the laser emitter can be driven to make circular motion by rotating the rod, which can quickly assist manual measurement of the verticality of the four sides of the elevator shaft. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings listed below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the measuring bracket in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the laser emitter and its related components in an embodiment of this utility model;

[0019] Figure 3 This is a reference diagram of the usage state of an embodiment of the present invention (in which the elevator shaft is cut open);

[0020] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0021] Figure 5 This is a top view of an embodiment of the present utility model;

[0022] Figure 6 yes Figure 5 A magnified view of a section at point B.

[0023] The components represented by each number in the attached diagram are listed below: 1. Frame; 2. Measuring bracket; 3. Rotating rod; 4. Laser emitter; 5. Motor; 7. Elevator shaft; 8. Spirit level; 9. L-shaped steel plate; 101. Base plate; 102. Support leg; 201. Circular plate; 202. Ball joint; 203. Circular adjusting plate; 204. Scale; 205. External rod; 206. Annular plate; 207. Leveling screw; 208. Support arm; 209. Connecting screw; 210. Screw; 20301. Boss; 20801. Horizontal bar; 20802. Vertical bar. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. Of course, the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit its scope.

[0025] See Figures 1-6An auxiliary measuring device for the verticality of an elevator shaft, characterized in that it includes a frame 1 set at the bottom of an elevator shaft 7, a rotating rod 3 rotatably mounted on the frame 1, a laser emitter 4 that emits upwards fixed at the end of the rotating rod 3, and the rotating shaft of the rotating rod 3 being concentric with the elevator shaft 7.

[0026] It also includes several measuring brackets 2 installed inside the elevator shaft 7. The measuring brackets 2 include a circular plate 201 concentric with the rotating shaft. A circular adjusting plate 203 is installed on the circular plate 201 through a ball joint 202. An annular plate 206 is fixedly installed on the outer wall of the circular plate 201 through several external rods 205. Three leveling screws 207 are installed on the annular plate 206 through threaded connection. The upper end of the leveling screw 207 can abut against the circular adjusting plate 203. Support arms 208 are symmetrically arranged on the outer wall of the annular plate 206. The ends of the support arms 208 are fixed to the inner wall of the elevator shaft 7. Four scales 204 corresponding to the inner wall of the elevator shaft 7 are slidably installed on the circular adjusting plate 203. The ends of the scales 204 can abut against the corresponding inner wall.

[0027] The top view projection of the scale 204 section located between the circular adjustment plate 203 and the inner wall of the elevator shaft 7 does not overlap with other components on the measuring bracket 2, and the laser from the laser emitter 4 passes through this section.

[0028] It also includes a level bubble 8 fixed to the circular adjustment plate 203. The design of the level bubble 8 allows the horizontal state of the circular adjustment plate 203 to be determined intuitively, improving the efficiency of leveling.

[0029] The frame 1 includes a base plate 101 and several support legs 102 disposed below the base plate 101. A rotating shaft is rotatably mounted on the base plate 101. A rotating rod 3 is disposed at the upper end of the rotating shaft, and the lower end is connected to a motor 5 with a reducer. The motor 5 is fixed on the base plate 101. The motor 5 with the reducer can automatically drive the rotating rod 3 to rotate, realizing the circumferential movement of the laser emitter 4.

[0030] The support arm 208 includes a horizontal bar 20801 and a vertical bar 20802 located at the end of the horizontal bar 20801. A connecting screw 209 is threaded onto the vertical bar 20802. An L-shaped steel plate 9 for mounting the connecting screw 209 is pre-embedded in the inner wall of the elevator shaft 7. The connecting screw 209 passes through the vertical part of the L-shaped steel plate 9 and is fixed on both sides by nuts. The design of the support arm 208 and the connecting screw 209 allows the measuring bracket 2 to be firmly fixed to the inner wall of the elevator shaft 7, and the connecting screw 209 can also be used for elevator shafts of different sizes.

[0031] The horizontal bar 20801 and the vertical bar 20802 are generally located on both sides of the scale 204. The design of the horizontal bar 20801 and the vertical bar 20802 on both sides of the scale 204 avoids the support arm 208 from blocking the laser beam, ensuring that the laser can pass smoothly through part of the scale 204.

[0032] The circular adjusting plate 203 has four protrusions 20301 evenly distributed around it. The protrusions 20301 are provided with slides. The scale 204 is slidably disposed in the slides. The protrusions 20301 are provided with screws 210 that press against the scale 204 by threaded connection.

[0033] Instructions for use: Measure the bottom of elevator shaft 7 to determine its center (this can be obtained by measuring the centerline of two adjacent inner walls). Move frame 1 so that the center of the rotating shaft is aligned with the previously measured center. Then obtain the distance from the center of the aperture on laser emitter 4 to the four inner walls (when elevator shaft 7 is square, the four distances are the same; when elevator shaft 7 is rectangular, the relative distances between the inner walls are the same).

[0034] Several measuring brackets 2 are set at intervals along the direction of elevator shaft 7 (usually one every 3-5 meters). After the measuring brackets 2 are installed, rotate the leveling screw 207 to keep the circular adjusting plate 203 horizontal. This can be determined by using a bubble level or other level. Slide the scale 204 so that the end of the scale 204 rests against the inner wall perpendicular to it. After all the scales 204 are adjusted, rotate the rotating rod 3 to drive the laser emitter 4 to rotate. The beam of the laser emitter 4 will hit the corresponding scale 204. At this time, read the values ​​on all the scales 204.

[0035] Calculate the difference between the read value and the distance between the center of the aperture on the laser emitter 4 and the four inner walls. Finally, calculate the verticality using the difference and the height from the scale 204 to the bottom of the elevator shaft 7.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 auxiliary measuring device for the verticality of an elevator shaft, characterized in that, The system includes a frame installed at the bottom of the elevator shaft, a rotating rod rotatably mounted on the frame, and an upward-emitting laser emitter fixed at the end of the rotating rod. The axis of rotation of the rotating rod is concentric with the elevator shaft. It also includes several measuring brackets installed inside the elevator shaft. Each measuring bracket includes a circular plate concentric with the rotating shaft. A circular adjusting plate is installed on the circular plate via a ball joint. An annular plate is fixed to the outer wall of the circular plate via several external rods. Three leveling screws are threadedly connected to the annular plate. The upper ends of the leveling screws can abut against the circular adjusting plate. Support arms are symmetrically arranged on the outer wall of the annular plate. The ends of the support arms are fixed to the inner wall of the elevator shaft. Four scales corresponding to the inner wall of the elevator shaft are slidably installed on the circular adjusting plate. The ends of the scales can abut against the corresponding inner walls. The top view projection of the scale section located between the circular adjustment plate and the inner wall of the elevator shaft does not overlap with other components on the measuring bracket, and the laser from the laser emitter passes through this section.

2. The elevator shaft verticality auxiliary measuring device according to claim 1, characterized in that, It also includes a level bubble fixed to the circular adjustment plate.

3. The elevator shaft verticality auxiliary measuring device according to claim 1, characterized in that, The frame includes a base plate and several support legs disposed below the base plate. The rotating shaft is rotatably disposed on the base plate. The upper end of the rotating shaft is provided with the rotating rod, and the lower end is connected to a motor with a reducer. The motor is fixed on the base plate.

4. The elevator shaft verticality auxiliary measuring device according to claim 1, characterized in that, The support arm includes a horizontal bar and a vertical bar at the end of the horizontal bar. A connecting screw is threaded onto the vertical bar. An L-shaped steel plate for installing the connecting screw is pre-embedded in the inner wall of the elevator shaft. The connecting screw passes through the vertical part of the L-shaped steel plate and is fixed on both sides by nuts.

5. The elevator shaft verticality auxiliary measuring device according to claim 4, characterized in that, The horizontal bar and vertical bar are generally located on both sides of the scale.

6. The elevator shaft verticality auxiliary measuring device according to claim 1, characterized in that, The circular adjusting plate has four protrusions evenly distributed around its circumference. Each protrusion has a slide rail, and the scale is slidably mounted within the slide rail. A screw is threadedly connected to the protrusion and presses against the scale.

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