Portable elevator guide rail perpendicularity detection calibrator
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI SPECIAL EQUIP INSPECTION & RES INST
- Filing Date
- 2025-08-22
- Publication Date
- 2026-05-29
AI Technical Summary
Existing elevator guide rail verticality testing and calibration instruments are bulky and inconvenient to carry, especially in older residential areas or buildings without elevators, where testing personnel need to manually move the equipment, which affects the performance of precision components.
A portable elevator guide rail verticality testing and calibration instrument was designed. It adopts an adjustment mechanism that uses slots to connect to the guide rail, lock sleeves for fixation, and sliding grooves for guidance. Combined with a linear motor and an electromagnet limit block, it achieves portability and accurate testing. It is equipped with worm gear transmission and lithium battery power supply, making it easy to carry and quick to assemble and disassemble.
It achieves portability and accuracy in elevator guide rail verticality detection, reduces the need for manual handling, improves detection efficiency and data accuracy, and is suitable for complex on-site environments.
Smart Images

Figure CN224302971U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator guide rail verticality detection technology, specifically a portable elevator guide rail verticality detection and calibration instrument. Background Technology
[0002] As guiding components for the elevator car and counterweight, the verticality of the elevator guide rails directly affects the smoothness and safety of elevator operation. Accurate detection and calibration of the guide rail verticality are crucial for ensuring elevator performance during installation, maintenance, and annual inspections.
[0003] Based on the above, the inventors have discovered the following problems: the existing testing and calibration instruments are large in size, which makes it very inconvenient to carry on site, especially in old residential areas or buildings without freight elevators. Testing personnel need to manually carry the equipment back and forth between each floor and the shaft entrance, which not only consumes a lot of physical strength, but may also affect the performance of internal precision components due to bumps and knocks.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a portable elevator guide rail verticality detection and calibration instrument in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this invention is to provide a portable elevator guide rail verticality testing and calibration instrument to solve the problem mentioned in the background art that the existing testing and calibration instruments are large in size, which makes them very inconvenient to carry on site.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A portable elevator guide rail verticality testing and calibration instrument includes a guide rail, an adjustment mechanism, and a testing mechanism. The adjustment mechanism includes a base frame with sliding grooves on both sides of its upper end and a slot at one end of the base frame. The slot is inserted into one side of the guide rail, and a locking sleeve is fixedly installed above the slot on the upper end of the base frame. The testing mechanism includes a movable seat with a pair of sliding grooves on both sides of its bottom end. A rotating shaft is rotatably connected inside the movable seat, and a linear motor is mounted on the rotating shaft. A connecting frame is fixedly installed at the moving end of the linear motor, and a digital dial indicator is movably inserted into the bottom side of the connecting frame. An electromagnet limit block is fixedly installed at the upper end of the movable seat, and one end of the electromagnet limit block is magnetically connected to the bottom side of the linear motor.
[0008] Furthermore, a power box is fixedly installed on one side of the movable seat, and a worm gear is rotatably connected inside the power box. The central shaft of one side of the worm gear is connected to one end of the rotating shaft.
[0009] The beneficial effect of adopting the above-mentioned further solution is that the worm gear in the power box is connected to the rotating shaft. The rotation of the worm gear drives the rotating shaft to rotate, thereby adjusting the position of the linear motor, which makes it convenient to store and carry. The worm gear transmission is smooth and has self-locking properties. After the linear motor is deployed, the detection angle can be accurately fixed, improving the directional adaptability of the verticality detection.
[0010] Furthermore, a worm is rotatably connected to the bottom end of the worm wheel inside the power box, and the worm meshes with the worm wheel. A first rotating wheel is rotatably connected to the bottom side of the power box, and one side of the central shaft of the first rotating wheel is connected to one end of the worm.
[0011] The beneficial effect of adopting the above-mentioned further solution is that rotating the first rotating wheel drives the worm gear to mesh with the worm wheel, thereby realizing the angle adjustment of the rotating shaft and facilitating the folding and storage of the linear motor.
[0012] Furthermore, a locking bolt is threaded onto one side of the connecting frame, and one end of the locking bolt abuts against the outer side of one end of the digital dial indicator.
[0013] The beneficial effect of adopting the above-mentioned further solution is that the locking bolt and the connecting bracket are threaded together, and after tightening, the digital dial indicator can be firmly fixed, preventing the dial indicator from shaking during the test and affecting the accuracy of the data. At the same time, it is convenient to quickly disassemble and install the dial indicator for maintenance or replacement, thus improving the practicality of the equipment.
[0014] Furthermore, a screw is rotatably connected inside the base frame, and a slider is threaded onto the screw. The top end of the slider is fixedly connected to the bottom end of the movable seat.
[0015] The beneficial effect of adopting the above-mentioned further solution is that the screw inside the base frame is threadedly connected to the slider. Rotating the screw can drive the movable seat to move smoothly along the slide groove, so that the detection end of the digital dial indicator is in contact with the outer surface of the track. Furthermore, a second rotating wheel is rotatably connected to one end of the base frame, and the central shaft on one side of the second rotating wheel is connected to one end of the screw.
[0016] The beneficial effect of adopting the above-mentioned further solution is that the second rotating wheel provides manual driving force for the screw, and the movement of the movable seat can be controlled by rotating the second rotating wheel. The operation is simple and labor-saving, and it is convenient to quickly adjust the detection position on site, thereby improving detection efficiency.
[0017] Furthermore, a clamping block is slidably installed on the inner side of the lock sleeve, and a fixing bolt is threadedly connected to the outer side of the lock sleeve, with one end of the fixing bolt rotatably connected to one side of the clamping block.
[0018] The beneficial effect of adopting the above-mentioned further solution is that tightening the fixing bolts pushes the clamping block to fit tightly with the guide rail, and the slots work together to achieve a stable connection between the base frame and the guide rail, preventing the device from shifting during testing and ensuring stable and reliable test data.
[0019] Furthermore, the bottom end of the base frame is equipped with abutments on both sides of the slot, the inner side of the abutment abuts against the outer side of the guide rail, and the center of each abutment is threaded with an adjusting bolt.
[0020] The beneficial effect of adopting the above-mentioned further solution is that the abutment block and the adjusting bolt cooperate, and tightening the bolt can make the abutment block support the bottom of the base frame, improve the firmness of the connection between the base frame and the guide rail, and by rotating the adjusting bolt, one end of it can be extended to abut against the guide rail, thereby making it convenient for the user to level the base frame.
[0021] Furthermore, a power distribution box is fixedly installed on the upper end of the base frame, located on one side of the lock sleeve. A level bubble is embedded in the upper end of the power distribution box, and a touch panel is embedded in one side of the power distribution box.
[0022] The advantages of adopting the above-mentioned further solutions are that the power distribution box provides power support for the device, the spirit level facilitates the calibration of the base's level, and ensures accurate detection benchmarks; the touch panel can display detection data, control the operation of the linear motor and the opening and closing of the electromagnet limit block, making operation intuitive and convenient.
[0023] Furthermore, the power distribution box is equipped with a lithium battery, which is electrically connected to the linear motor, the electromagnet limit block, and the touch panel via wires.
[0024] The beneficial effects of adopting the above-mentioned further solution are that the lithium battery provides an independent power supply for the linear motor, electromagnet limit block and touch panel, eliminating the need for external wires, enhancing the portability of the device, making it suitable for complex on-site environments such as elevator shafts, and improving the practicality of the equipment.
[0025] Compared with the prior art, the advantages of this utility model are as follows: The base frame of this portable elevator guide rail verticality testing and calibration instrument is connected to the guide rail via a slot, with a locking sleeve for auxiliary fixation, facilitating the fixing of the device to the guide rail. A sliding groove provides sliding guidance for the movable seat of the testing mechanism. The linear motor of the testing mechanism moves along the rotating shaft, driving a digital dial indicator on the connecting frame to test the verticality of the guide rail. An electromagnet limit block can fix the position of the linear motor, ensuring the stability of the testing point. The overall structure is compact and portable. During testing, the testing mechanism can be unfolded, and the digital dial indicator can be adjusted. After installation and testing, the testing mechanism can be flipped and folded. The locking bolts and connecting brackets are threaded together, and tightening them securely fixes the digital dial indicator, preventing it from shaking during testing and affecting data accuracy. This also facilitates quick disassembly and assembly of the dial indicator for maintenance or replacement, improving the equipment's practicality. The abutment block works with the adjusting bolts; tightening the bolts allows the abutment block to support the bottom of the base frame, improving the connection between the base frame and the guide rail. Furthermore, by rotating the adjusting bolts, one end can be extended to abut against the guide rail, making it easy for the user to level the base frame. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the portable elevator guide rail verticality testing and calibration instrument disclosed in this utility model embodiment. Figure 1 ;
[0027] Figure 2 This is a three-dimensional structural diagram of the portable elevator guide rail verticality testing and calibration instrument disclosed in this utility model embodiment. Figure 2 ;
[0028] Figure 3 This is a three-dimensional structural diagram of the portable elevator guide rail verticality testing and calibration instrument disclosed in this utility model embodiment. Figure 3 ;
[0029] Figure 4 This is a three-dimensional structural diagram of the base frame of the portable elevator guide rail verticality detection and calibration instrument disclosed in this utility model embodiment;
[0030] Figure 5 This is a schematic side cross-sectional view of the power box of the portable elevator guide rail verticality detection and calibration instrument disclosed in this utility model embodiment.
[0031] In the diagram: 1. Guide rail; 2. Adjustment mechanism; 201. Base frame; 202. Screw; 203. Slide groove; 204. Second rotating wheel; 205. Abutment block; 206. Adjusting bolt; 207. Locking sleeve; 208. Distribution box; 209. Level bulb; 210. Fixing bolt; 211. Clamping block; 212. Slot; 213. Slider; 214. Touch panel; 3. Detection mechanism; 301. Movable seat; 302. Electromagnetic limit block; 303. Linear motor; 304. Digital dial indicator; 305. Locking bolt; 306. Connecting frame; 307. Power box; 308. Worm gear; 309. Worm; 310. Rotating shaft; 311. First rotating wheel. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Please see Figure 1 - Figure 5This utility model provides a technical solution: a portable elevator guide rail verticality testing and calibration instrument, including a guide rail 1, an adjustment mechanism 2, and a testing mechanism 3. The adjustment mechanism 2 includes a base frame 201, with sliding grooves 203 on both sides of the upper end of the base frame 201, and a slot 212 at one end of the base frame 201. The slot 212 is inserted into one side of the guide rail 1, and a locking sleeve 207 is fixedly installed on the upper end of the base frame 201 above the slot 212. The testing mechanism 3 includes a movable seat 301. The bottom sides of the movable seat 301 are slidably connected to a pair of sliding grooves 203 respectively. The movable seat 301 is rotatably connected to a rotating shaft 310, and a linear motor 303 is sleeved on the rotating shaft 310. A connecting frame 306 is fixedly installed on the moving end of the linear motor 303. A digital dial indicator 304 is movably inserted into the bottom side of the connecting frame 306. An electromagnet limit block 302 is fixedly installed on the upper end of the movable seat 301. One end of the electromagnet limit block 302 is magnetically connected to the bottom side of the linear motor 303.
[0034] As an embodiment of this utility model, a power box 307 is fixedly installed on one side of the movable seat 301. A worm gear 308 is rotatably connected inside the power box 307. The central shaft of one side of the worm gear 308 is connected to one end of the rotating shaft 310. The worm gear 308 inside the power box 307 is connected to the rotating shaft 310. The rotation of the worm gear 308 drives the rotating shaft 310 to rotate, thereby adjusting the position of the linear motor 303, which facilitates storage and carrying. The worm gear 308 has smooth transmission and self-locking properties. After the linear motor 303 is unfolded, the detection angle can be accurately fixed, improving the directional adaptability of the verticality detection.
[0035] As an embodiment of this utility model, further, a worm 309 is rotatably connected to the bottom end of the worm wheel 308 inside the power box 307. The worm 309 meshes with the worm wheel 308. A first rotating wheel 311 is rotatably connected to the bottom side of the power box 307. The central shaft of one side of the first rotating wheel 311 is connected to one end of the worm 309. Rotating the first rotating wheel 311 drives the worm 309 to mesh with the worm wheel 308, thereby realizing the angle adjustment of the rotating shaft 310, which facilitates the folding and storage of the linear motor 303.
[0036] As an embodiment of this utility model, a locking bolt 305 is threadedly connected to one side of the connecting bracket 306. One end of the locking bolt 305 abuts against the outer side of one end of the digital micrometer 304. The locking bolt 305 and the connecting bracket 306 are threadedly engaged. After tightening, the digital micrometer 304 can be firmly fixed, preventing the micrometer from shaking during the test and affecting the accuracy of the data. At the same time, it is convenient to quickly disassemble and assemble the micrometer for maintenance or replacement, thus improving the practicality of the equipment.
[0037] As an embodiment of this utility model, a screw 202 is rotatably connected inside the base frame 201, and a slider 213 is threadedly connected to the screw 202. The top end of the slider 213 is fixedly connected to the bottom end of the movable seat 301. The screw 202 inside the base frame 201 is threadedly connected to the slider 213. Rotating the screw 202 can drive the movable seat 301 to move smoothly along the slide groove 203, so that the detection end of the digital micrometer 304 is in contact with the outer surface of the track 1.
[0038] As an embodiment of this utility model, a second rotating wheel 204 is rotatably connected to one end of the base frame 201. The central shaft of one side of the second rotating wheel 204 is connected to one end of the screw 202. The second rotating wheel 204 provides manual driving force for the screw 202. The movable seat 301 can be moved by rotating the second rotating wheel 204. The operation is simple and labor-saving, and it is convenient to quickly adjust the detection position on site to improve detection efficiency.
[0039] As an embodiment of this utility model, a clamping block 211 is slidably installed on the inner side of the locking sleeve 207, and a fixing bolt 210 is threadedly connected to the outer side of the locking sleeve 207. One end of the fixing bolt 210 is rotatably connected to one side of the clamping block 211. Tightening the fixing bolt 210 pushes the clamping block 211 to fit tightly against the guide rail 1. The slot 212 cooperates to realize a stable connection between the base frame 201 and the guide rail 1, preventing the device from shifting during testing and ensuring stable and reliable test data.
[0040] As an embodiment of this utility model, further, the bottom end of the base frame 201 is provided with abutment blocks 205 on both sides of the slot 212. The inner side of the abutment block 205 abuts against the outer side of the guide rail 1. The center of the abutment block 205 is threaded with an adjusting bolt 206. The abutment block 205 cooperates with the adjusting bolt 206. Tightening the bolt can support the bottom of the base frame 201 with the abutment block 205, improve the firmness of the connection between the base frame 201 and the guide rail 1, and by rotating the adjusting bolt 206, one end of it can be extended to abut against the guide rail 1, thereby facilitating the user to level the base frame 201.
[0041] As an embodiment of this utility model, a power distribution box 208 is fixedly installed on the upper end of the base frame 201 on one side of the locking sleeve 207. A spirit level 209 is embedded in the upper end of the power distribution box 208, and a touch panel 214 is embedded in one side of the power distribution box 208. The power distribution box 208 provides power support for the device. The spirit level 209 facilitates the calibration of the horizontal state of the base frame 201 to ensure accurate detection benchmark. The touch panel 214 can display detection data, control the operation of the linear motor 303 and the opening and closing of the electromagnet limit block 302, making the operation intuitive and convenient.
[0042] As an embodiment of this utility model, the power distribution box 208 is further equipped with a lithium battery. The lithium battery is electrically connected to the linear motor 303, the electromagnet limit block 302 and the touch panel 214 through wires. The lithium battery provides an independent power supply for the linear motor 303, the electromagnet limit block 302 and the touch panel 214, eliminating the need for external wires, enhancing the portability of the device, making it suitable for complex on-site environments such as elevator shafts, and improving the practicality of the equipment.
[0043] Specifically, the working principle of this portable elevator guide rail verticality testing and calibration instrument is as follows: In use, first, insert the slot 212 of the base frame 201 into the guide rail 1. Combined with the spirit level 209, level the base frame 201 using the adjusting bolt 206 of the abutment block 205. After ensuring horizontality, tighten the fixing bolt 210 on the locking sleeve 207 to push the clamping block 211 to clamp the guide rail 1. Simultaneously, rotate the first rotating wheel 311 to make the worm gear 309 mesh with the worm wheel 308, driving the rotating shaft 310 to rotate and unfold the linear motor 303. Control the electromagnet limit block 302 via the touch panel 214 to magnetically fix the linear motor 303, thus ensuring the verticality of the guide rail 1. The linear motor 303 is kept perpendicular to the base frame 201, and the digital micrometer 304 is inserted into the connecting frame 306 and the locking bolt 305 is tightened to fix it. The second rotating wheel 204 drives the screw 202, so that the slider 213 drives the movable seat 301 to move along the slide groove 203, so that the detection end of the digital micrometer 304 is in contact with the guide rail 1, and the linear motor 303 is controlled to move. The digital micrometer 304 detects the verticality data in real time. After the test is completed, the digital micrometer 304 is disassembled, and the first rotating wheel 311 is rotated in the opposite direction to fold the linear motor 303. The whole system is powered by a lithium battery, realizing portable and efficient testing and calibration.
[0044] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.
Claims
1. A portable elevator guide rail verticality testing and calibration instrument, characterized in that, The system includes a guide rail (1), an adjustment mechanism (2), and a detection mechanism (3). The adjustment mechanism (2) includes a base frame (201), with sliding grooves (203) on both sides of the upper end of the base frame (201). A slot (212) is provided at one end of the base frame (201), and the slot (212) is inserted into one side of the guide rail (1). A locking sleeve (207) is fixedly installed on the upper end of the base frame (201) above the slot (212). The detection mechanism (3) includes a movable seat (301), with sliding grooves (203) on both sides of the bottom end of the movable seat (301). The movable seat (301) is slidably connected to a pair of the aforementioned grooves (203). A rotating shaft (310) is rotatably connected inside the movable seat (301), and a linear motor (303) is sleeved on the rotating shaft (310). A connecting frame (306) is fixedly installed on the moving end of the linear motor (303). A digital dial indicator (304) is movably inserted into the bottom side of the connecting frame (306). An electromagnet limiting block (302) is fixedly installed on the upper end of the movable seat (301), and one end of the electromagnet limiting block (302) is magnetically connected to the bottom side of the linear motor (303).
2. The portable elevator guide rail verticality detection and calibration instrument according to claim 1, characterized in that, A power box (307) is fixedly installed on one side of the movable seat (301). A worm gear (308) is rotatably connected inside the power box (307). The central shaft of one side of the worm gear (308) is connected to one end of the rotating shaft (310).
3. The portable elevator guide rail verticality detection and calibration instrument according to claim 2, characterized in that, The power box (307) is rotatably connected to the bottom end of the worm gear (308) and the worm gear (309) meshes with the worm gear (308). The bottom side of the power box (307) is rotatably connected to a first rotating wheel (311), and one side of the central shaft of the first rotating wheel (311) is connected to one end of the worm gear (309).
4. The portable elevator guide rail verticality detection and calibration instrument according to claim 1, characterized in that, A locking bolt (305) is threadedly connected to one side of the connecting bracket (306), and one end of the locking bolt (305) abuts against the outer side of one end of the digital micrometer (304).
5. A portable elevator guide rail verticality testing and calibration instrument according to claim 1, characterized in that, The base frame (201) is rotatably connected to a screw (202), and a slider (213) is threaded onto the screw (202). The top end of the slider (213) is fixedly connected to the bottom end of the movable seat (301).
6. A portable elevator guide rail verticality testing and calibration instrument according to claim 5, characterized in that, One end of the base frame (201) is rotatably connected to a second rotating wheel (204), and the central shaft on one side of the second rotating wheel (204) is connected to one end of the screw (202).
7. A portable elevator guide rail verticality testing and calibration instrument according to claim 1, characterized in that, A clamping block (211) is slidably installed on the inner side of the lock sleeve (207), and a fixing bolt (210) is threadedly connected to the outer side of the lock sleeve (207). One end of the fixing bolt (210) is rotatably connected to one side of the clamping block (211).
8. A portable elevator guide rail verticality detection and calibration instrument according to claim 1, characterized in that, The bottom end of the base frame (201) is equipped with abutments (205) on both sides of the slot (212). The inner side of the abutment (205) abuts against the outer side of the guide rail (1). An adjusting bolt (206) is threadedly connected to the center of the abutment (205).
9. A portable elevator guide rail verticality testing and calibration instrument according to claim 1, characterized in that, A power distribution box (208) is fixedly installed on the upper end of the base frame (201) on one side of the lock sleeve (207). A level bubble (209) is embedded in the upper end of the power distribution box (208), and a touch panel (214) is embedded in one side of the power distribution box (208).
10. A portable elevator guide rail verticality detection and calibration instrument according to claim 9, characterized in that, The power distribution box (208) is equipped with a lithium battery, which is electrically connected to the linear motor (303), the electromagnet limit block (302) and the touch panel (214) via wires.