Calibration device for elevator door installation
The calibration device for elevator door installation addresses the challenges of conventional devices by using a telescopic lever system with magnetic adsorption and illumination, enabling efficient and accurate calibration without complex tools.
Patent Information
- Application Number
- JP2025001004U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Conventional calibration devices for elevator door installation face issues such as circuit failures, power wiring challenges in special environments, and complex installation processes, which affect the accuracy and ease of calibration.
A calibration device with a telescopic lever, slide seats, rotating shaft, vertical rod, pointer, and adaptive iron sheets, which uses magnetic adsorption for quick attachment and illumination for visibility in dark areas, allowing for easy detection of parallelism and perpendicularity without complex tools.
The device enables efficient and accurate calibration of elevator doors by simplifying the installation process, improving visibility in dark environments, and reducing the need for complex tools, thereby enhancing work efficiency and safety.
Smart Images

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Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of elevators, and specifically to a calibration device for elevator door installation.
Background Art
[0002] In modern urban architecture, elevators have already become an indispensable means of vertical transportation and are widely applied in various places such as residential buildings, commercial buildings, and office buildings. As an important component of the elevator, the elevator door has an installation accuracy that directly affects the use safety, operation stability, and passenger comfort of the elevator.
[0003] When it is necessary to use a calibration device for elevator door installation, an appropriate fixing method should be selected, and the calibration device should be firmly attached to the corresponding position of the elevator door, generally attached to a convenient part for observation and operation such as the upper part or side of the door, calibrate the perpendicularity of the elevator door, and based on the vertical indication mark or data on the calibration device, finely adjust the vertical direction of the elevator door to ensure that the deviation in the vertical direction of the elevator door is extremely small.
[0004] When the conventional charged calibration device is used for a long time, problems such as circuit failures and deterioration of electrical components will occur. In special environments such as power outages and inconvenient temporary power use at the construction site, it is necessary to consider the problems of power wiring during the calibration process. Since there may be no electricity at the position of the power outlet or there may be limitations on the length of the electric wire, a calibration device for elevator door installation is proposed to address the above problems.
Summary of the Invention
Means for Solving the Problems
[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art, the present invention proposes a calibration device for elevator door installation.
[0006] The technical solution adopted by the present invention to solve its technical problems is a calibration device for elevator door installation described in the present invention, which includes a telescopic lever. A slide seat is slidably connected to the central part of the telescopic lever. There are two sets of the slide seats. A rotating shaft is fixed to the central part of the slide seat. A vertical rod is rotatably connected to the central part of the rotating shaft. A pointer is fixed to the top of the vertical rod. A plurality of sets of iron sheets are fixed to the side of the vertical rod. A bracket is fixed to the top of the slide seat. An indicator panel is fixed to one side surface of the bracket. Scale lines are opened on the surface of the indicator panel. By combining the pointer and the scale lines, it is possible to observe whether the elevator door is vertical. By extending and retracting the telescopic lever on both sides of the elevator wall, the device can be easily engaged on both sides of the elevator wall, the installation positioning of the device can be quickly completed, the inclination direction and degree of the pointer can be observed, and it can be easily determined whether the parallelism and perpendicularity of the elevator door meet the requirements. By rotatably connecting the vertical rod to the rotating shaft, the surfaces of a plurality of sets of iron sheets can be adaptively attached to the side of the elevator door. Through the adaptive attachment, non-parallelism or non-perpendicularity on the side of the elevator door can be detected.
[0007] Preferably, a magnet is fixed to the surface of the iron sheet, and a rubber pad is fixed to the surface of the magnet. The magnet is rapidly adsorbed by the suction force. When the magnet is adsorbed, the rubber mat can avoid the magnet directly contacting the surface of the elevator and prevent frictional damage. Due to the adsorption characteristics of the magnet, the calibration device can be quickly fixed to the side of the elevator, and there is no need to perform complicated installation operations using additional tools, such as bolt tightening, snap fixing, etc. Just bring the side of the elevator close to the magnet, and the magnet will automatically adsorb, reducing the difficulty and complexity of the operation.
[0008] Preferably, a mirror is fixed to the top of the bracket, and a light stick is fixed to the surface of the dial. When the light stick emits light and illuminates the pointer and the scale line, it is easy to observe in a dark area. The mirror surrounds the light stick, and the light emitted by the light stick is reflected through the mirror to the corners and gaps that are difficult to cover with the original light, illuminating the dark area around the pointer. The light of the light stick can make the calibration angle clearer when using the calibration device.
[0009] Preferably, a screw is slidably connected to the surface of the vertical rod, and a spring is fixed to the central part of the screw. By pushing multiple sets of screws, it is possible to check whether the top of the elevator door is parallel in height. If the height of the elevator door is parallel, by pushing the screws on both sides, it is possible to just stay at the top of the elevator door. By pushing multiple sets of screws, the difference in the height of the top of the elevator door can be observed, eliminating the need for complicated measurements and calculations, greatly saving the detection time, improving the work efficiency, and saving time in the installation and calibration work of a batch of elevator doors.
[0010] Preferably, a fixed seat is fixed to the side of the vertical rod, a plumb line is fixed below the fixed seat, and a gravity ball is fixed to the bottom of the plumb line. When the gravity ball falls downward, the roll of the elevator and the inclination angle of the elevator can be seen through the gravity ball. When connecting the plumb line through the gravity ball, a state perpendicular to the ground is always maintained, accurately reflecting the actual inclination situation of the elevator. Moreover, the gravity ball is sensitive to even a tiny inclination change. Even if the elevator has only a slight roll, the plumb line will show an obvious deviation accordingly.
[0011] Preferably, a cleaning ring is fixed to the bottom of the screw, and a plurality of sets of the cleaning rings are provided. Through the cleaning ring, a large amount of impurities such as dust and debris accumulated on the screw surface area are cleaned, preventing the dust from staying on the screw surface, reducing the difficulty of pressing and moving, abnormal noise generation, friction and wear between parts, and maintaining the cleaning degree of the part surface.
Advantages of the Invention
[0012] The beneficial effects of the present invention are as follows: 1. The calibration device for elevator door installation described in the present invention can observe whether the elevator door is vertical by combining the pointer and the scale line. By extending and contracting the lever on both sides of the elevator wall, the device can be easily engaged on both sides of the elevator wall, quickly complete the installation positioning of the device, observe the inclination direction and degree of the pointer, and easily determine whether the parallelism and perpendicularity of the elevator door meet the requirements. By rotating the vertical rod to rotationally connect the shaft, multiple sets of iron sheet surfaces can be adaptively attached to the side of the elevator door. Through the adaptive attachment, non-parallel or non-vertical on the side of the elevator door can be detected. 2. The calibration device for elevator door installation described in the present invention, the magnet is rapidly adsorbed by the suction force. When the magnet is adsorbed, the rubber mat can avoid the magnet directly contacting the surface of the elevator, preventing friction damage. Due to the adsorption characteristics of the magnet, the calibration device can be quickly fixed to the side of the elevator, eliminating the need to perform complicated installation operations using additional tools, such as bolt tightening and snap fixing. Just bring the side of the elevator closer to the magnet, and the magnet will automatically adsorb, reducing the difficulty and complexity of the operation.
Brief Description of the Drawings
[0013] To more clearly explain the technical aspects in the embodiments of the present invention or the prior art, the drawings necessary for use in the following description of the embodiments or the prior art will be briefly described below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Embodiments for Carrying out the Invention
[0014] To enable those skilled in the art to better understand the present invention, the embodiments of the present invention will be clearly and completely described below in relation to the drawings in the embodiments of the present invention. However, it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the examples in the present invention, all other examples obtained by those skilled in the art without creative labor should belong to the protection scope of the present invention.
[0015] Specific examples are shown below.
[0016] As shown in FIGS. 1 and 5, the calibration device for elevator door installation described in the present invention includes a telescopic lever 1. A slide seat 11 is slidably connected to the central portion of the telescopic lever 1. There are two sets of the slide seats 11. A rotating shaft 12 is fixed to the central portion of the slide seat 11. A vertical rod 13 is rotatably connected to the central portion of the rotating shaft 12. A pointer 14 is fixed to the top of the vertical rod 13. A plurality of sets of iron sheets 15 are fixed to the side of the vertical rod 13. A bracket 16 is fixed to the top of the slide seat 11. An indicator panel 17 is fixed to one side surface of the bracket 16. Scale lines 18 are provided on the surface of the indicator panel 17. During operation, the telescopic lever 1 in the present application adopts a screw-type telescopic lever 1 in the prior art, and both ends are screws that can extend rotatably. The two sides of the telescopic lever 1 are extended and retracted outward. By extending and retracting the two ends of the telescopic lever 1 outward, the telescopic lever 1 is engaged with both sides of the elevator wall. When the elevator doors on both sides are in the merging process, they contact the iron sheets 15. The iron sheets 15 apply a lateral thrust to the rotating shaft 12, sliding the slide seat 11 to the middle. If the side of the elevator door is not parallel to the plurality of sets of iron sheets 15, the rotating shaft 12 is rotatably connected through the vertical rod 13. The surfaces of the plurality of sets of iron sheets 15 contact the side of the elevator door. At this time, the vertical rod 13 is on the side of the elevator door, and the pointer 14 tilts to the left or right. By combining the pointer 14 and the scale lines 18, it is possible to observe whether the elevator door is vertical. By extending and retracting the telescopic lever 1 on both sides of the elevator wall, the device can be easily engaged with both sides of the elevator wall, quickly completing the installation positioning of the device. It is possible to observe the inclination direction and degree of the pointer 14, and easily determine whether the parallelism and perpendicularity of the elevator door meet the requirements. By rotatably connecting the vertical rod to the rotating shaft 12, the surfaces of the plurality of sets of iron sheets 15 can be adaptively attached to the side of the elevator door. Through the adaptive attachment, it is possible to detect the non-parallelism or non-perpendicularity of the side of the elevator door.
[0017] As shown in Fig. 2, a magnet 2 is fixed to the surface of the iron sheet 15, and a rubber pad 21 is fixed to the surface of the magnet 2. During operation, when the side of the elevator touches the iron sheet 15, the magnet is rapidly adsorbed by the attractive force. When the magnet is adsorbed, the rubber mat avoids the direct contact between the magnet and the surface of the elevator, preventing friction damage. Due to the adsorption characteristics of the magnet 2, the calibration device can be quickly fixed to the side of the elevator without the need to perform complicated installation operations using additional tools, such as bolt tightening and snap fixing. Just bringing the side of the elevator close to the magnet 2, the magnet 2 will automatically adsorb, reducing the difficulty and complexity of the operation.
[0018] As shown in Figs. 1 to 3, a mirror 3 is fixed to the top of the bracket 16, and a light stick 31 is fixed to the surface of the indicator panel 17. During operation, the light stick 31 emits light, illuminating the pointer 14 and the scale line 18, making it easier to observe in a dark area. The mirror 3 surrounds the light stick 31, and the light emitted by the light stick 31 is reflected by the mirror 3 into the corners and gaps that are difficult to cover with the original light, illuminating the dark area around the pointer 14. The light of the light stick 31 can make the calibration angle clearer when calibrating the device.
[0019] As shown in Figs. 1 to 4, a screw 4 is slidably connected to the surface of the vertical rod 13, and a spring 41 is fixed to the central part of the screw 4. During operation, when the heights of the elevator doors on both sides do not match, pressure is applied to the screw 4, and the screw 4 moves inward relative to the tip of the elevator door and can spring back by the spring 41. By pushing multiple sets of screws, it is possible to check whether the tops of the elevator doors are at the same height. If the heights of the elevator doors are parallel, by pushing the screws on both sides, it can just stay at the top of the elevator door. By pushing multiple sets of screws 4, the height difference at the top of the elevator door can be observed, eliminating the need for complicated measurements and calculations, significantly saving the detection time, improving work efficiency, and saving time in the installation and calibration work of a batch of elevator doors.
[0020] As shown in FIGS. 3 to 5, a fixing seat 5 is fixed to the side of the vertical rod 13, a plumb line 51 is fixed below the fixing seat 5, and a gravity ball 52 is fixed to the bottom of the plumb line 51. During operation, the plumb line 51 below the fixing seat 5 is perpendicular to the ground. When the gravity ball 52 drops downward, the roll of the elevator can view the inclination angle between the gravity ball 52 and the elevator. Connecting the plumb line 51 through the gravity ball 52 can always maintain a state perpendicular to the ground, accurately reflecting the actual inclination situation of the elevator. Moreover, the gravity ball 52 is sensitive to even a minute inclination change. Even if the elevator has only a slight roll, an obvious deviation will occur in the plumb line 51 accordingly.
[0021] As shown in FIG. 5, a cleaning ring 6 is fixed to the bottom of the screw 4. During operation, the cleaning ring 6 cleans a large amount of impurities such as dust and scraps accumulated on the screw surface area, preventing the dust from staying on the surface of the screw 4, reducing the difficulty of pressing and moving, abnormal noise generation, and friction and wear between parts, and maintaining the cleaning degree of the part surface.
[0022] The operating principle is as follows. The telescopic lever 1 in this application adopts the screw-type telescopic lever 1 in the prior art, and both ends are screws that can extend rotatably. The two sides of the telescopic lever 1 are extended and retracted outward. By extending and retracting both ends of the telescopic lever 1 outward, the telescopic lever 1 is engaged with both sides of the elevator wall. When the elevator doors on both sides contact the iron sheet 15 during the merging process, the iron sheet 15 applies a lateral thrust to the rotating shaft 12, sliding the slide seat 11 to the middle. If the side of the elevator door is not parallel to the multiple sets of iron sheets 15, the rotating shaft 12 is rotatably connected via the vertical rod 13. The surfaces of the multiple sets of iron sheets 15 contact the side of the elevator door. At this time, the vertical rod 13 is on the side of the elevator door, the pointer 14 tilts to the left or right. When the side of the elevator touches the iron sheet 15, the magnet is rapidly adsorbed by the attractive force. When the magnet is adsorbed, the rubber mat avoids the magnet directly contacting the surface of the elevator. The light stick 31 emits light, illuminating the pointer 14 and the scale line 18, making it easier to observe in a dark area. The reflector 3 surrounds the light stick 31, and the light emitted by the light stick 31 is reflected by the reflector 3 to the corners and gaps that are difficult to cover with the original light. If the heights of the elevator doors on both sides do not match, pressure is applied to the screw 4, and the screw 4 moves inward relative to the tip of the elevator door and can spring back by the spring 41. By pushing multiple sets of screws, it is possible to see whether the top of the elevator door is at the same height. The vertical line 51 below the fixed seat 5 is perpendicular to the ground. By the gravity ball 52 falling downward, the inclination angle of the elevator roll and the gravity ball 52 can be seen. Through the cleaning ring 6, a large amount of impurities such as dust and debris accumulated on the screw surface area can be cleaned.
[0023] The basic principle, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only to explain the principle of the present invention. Without departing from the spirit and scope of the present invention, there are various changes and improvements to the present invention, and all of these changes and improvements should fall within the scope of the present invention that requires protection.
Description of Symbols
[0024] 1. Telescopic lever; 11. Slide seat; 12. Rotation axis; 13. Vertical rod; 14. Pointer; 15. Iron sheet; 16. Bracket; 17. Dial; 18. Scale line; 2. Magnet; 21. Rubber pad; 3. Reflector; 31. Light stick; 4. Screw; 41. Spring; 5. Fixed seat; 51. Vertical line; 52. Gravity ball; 6. Cleaning ring.
Claims
1. 1. A calibration device for installing an elevator door, comprising: a telescopic lever (1), a sliding seat (11) slidably connected to a center part of the telescopic lever (1), two sets of the sliding seats (11), a rotating shaft (12) fixed to a center part of the sliding seat (11), a vertical bar (13) rotatably connected to a center part of the rotating shaft (12), a pointer (14) fixed to a top of the vertical bar (13), a plurality of sets of iron sheets (15) fixed to sides of the vertical bar (13), a bracket (16) fixed to a top of the sliding seat (11), a dial (17) fixed to one side of the bracket (16), and a scale (18) formed on a surface of the dial (17).
2. 2. The elevator door installation calibration device according to claim 1, wherein a magnet (2) is fixed to the surface of the iron sheet (15), and a rubber pad (21) is fixed to the surface of the magnet (2).
3. The elevator door installation calibration device according to claim 2, characterized in that a reflector (3) is fixed to the top of the bracket (16) and a light stick (31) is fixed to the surface of the indicator panel (17).
4. The calibration device for elevator door installation according to claim 3, characterized in that a screw (4) is slidingly connected to the surface of the vertical bar (13), and a spring (41) is fixed to the center of the screw (4).
5. The elevator door installation calibration device according to claim 4, characterized in that a fixed seat (5) is fixed to the side of the vertical bar (13), a vertical line (51) is fixed below the fixed seat (5), and a gravity ball (52) is fixed to the bottom of the vertical line (51).
6. 6. The elevator door installation calibration device according to claim 5, wherein a cleaning ring (6) is fixed to the bottom of the screw (4), and a plurality of sets of the cleaning ring (6) are provided.