Device for comprehensive measurement of elevator landing door

Abstract

The utility model discloses a device for comprehensive measurement of an elevator landing door, which belongs to the technical field of safety measurement of elevator equipment and comprises a main body device and a movable sliding block, a touch screen is arranged right above the main body device, a T-shaped force sensor and a detachable cylinder are arranged at the front part of the main body device, the detachable cylinder is provided with protruding external threads, and the movable sliding block is connected with the touch screen. The movable sliding block is fixed with the force sensor through threads, the upper half portion of the force sensor is connected with the electric push rod and the linkage rod, two shifting pieces which are bent downwards and perpendicular are arranged in front of the movable sliding block, the shifting pieces and the force sensor form an opposite extending structure, and the movable sliding block is fixed and connected with the main body device through a sliding rail. The parallel movement of the movable sliding block relative to the main body equipment is realized; the elevator landing door data measuring device has the advantages of being integrated in aluminum alloy instrument design, firm, durable, small in size and convenient to carry, and measuring various elevator landing door data through one device through the detachable cylinder and the customized force sensor.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment safety measurement technology, specifically to a device for comprehensive measurement of elevator landing doors. Background Technology

[0002] Elevator landing doors serve as a barrier between the elevator car and the floors, directly bearing the impact and pressure forces from external forces. Insufficient strength can lead to fatal safety hazards. Foot guards are protective components extending vertically downwards from the bottom of the landing door, primarily addressing the risk of "gap falls," and their strength is a prerequisite for their effectiveness. Elevator door opening gaps refer to the gaps between the door panels during the opening process, primarily preventing pinching and jamming risks. GB / T 7588.1-2020 "Safety Code for Elevator Manufacturing and Installation" specifies the requirements for elevator door opening gaps in section 5.3.3.3 and the strength requirements for foot guards in section 5.4.5. Traditional inspection methods are difficult to operate and are prone to changes in gap values ​​due to hand tremors, which is not only labor-intensive but also results in significant measurement errors. Currently available automated measuring equipment also suffers from limited measurement functionality. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a comprehensive elevator door measurement device, which makes measuring elevator door opening gaps and elevator footboard strength more convenient and comprehensive.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a device for comprehensive measurement of elevator landing doors, including a main body and a movable slider. The main body is equipped with a touch screen on the top, a power switch and a charging port on one side, and a T-shaped force sensor and a detachable cylinder at the front. The detachable cylinder has a protruding external thread and is fixed to the force sensor by the thread. The upper part of the force sensor is connected to an electric push rod and a linkage rod. The main body includes a battery, a control board, and an electric push rod. The battery is arranged horizontally in parallel at the end of the main body. The control board is fixed inside the main body on one side. The movable slider has two downwardly bent and vertically extended tabs at the front, forming an opposing protruding structure with the force sensor. The movable slider is fixed and connected to the main body by a slide rail, realizing the parallel movement of the movable slider relative to the main body. The movable slider is fixed in position by a fixing screw. The movement distance of the movable slider is fixed by moving the fixing screw to different threaded holes. Several strong magnets are installed below the movable slider, also fixed by external threads. The touch screen, power switch, charging port, force sensor, electric push rod, and battery are all electrically connected to the control motherboard. The feature of this utility model is its integrated aluminum alloy instrument design, which is sturdy, durable, small in size, and easy to carry. Through the detachable cylinder and customized force sensor, it can realize the measurement of multiple elevator door data with one device. It is efficient, fast, accurate, and safe for measuring elevator door opening gaps and elevator foot protection plates.

[0005] Furthermore, the main equipment is made of 6061 aluminum alloy using CNC machining, and the surface is treated with sandblasting and anodizing technology.

[0006] Furthermore, the force sensor is connected to a detachable cylinder. When installed, it meets the inspection and regulation requirements for measuring the strength of the foot guard plate with a contact area of ​​5 cm². When removed, it allows for normal measurement of the door opening gap.

[0007] Furthermore, the movable slider moves via a slide rail to change the measurement position of the main device, and the final measurement position is selected by fixing it to different threaded holes with fixing screws.

[0008] Furthermore, the force sensor is T-shaped overall, with the lower half being the measuring part. It works in conjunction with the lever on the movable slider to separate to the opposite side, thereby measuring the door opening gap and the strength of the foot guard.

[0009] Furthermore, the linkage rod can increase the stability of the T-shaped force sensor, ensuring that when the lower half of the force sensor is subjected to compression deformation, the upper half remains stationary, thus ensuring the accuracy of the data deformation.

[0010] Furthermore, the strong magnet below the movable slider can be attracted and fixed when measuring the door opening gap, without the need for manual fixing.

[0011] The beneficial effects of this utility model are as follows: A single device can measure data from multiple elevator landing doors using a detachable cylinder and a customized force sensor. The customized force sensor features stable performance, high accuracy, high response frequency, and easy installation. The electric push rod, made of aluminum alloy, has a compact structure, ultra-quiet operation, various protection functions, and high performance. The movable slider design allows the main device to be extended or retracted a certain distance, flexibly adjusting its position to adapt to different situations. The main device is an integrated design, robust and durable, requiring no additional fixing devices, making operation simple, convenient, and measurement more accurate. Attached Figure Description

[0012] Figure 1 This is a side view of the overall structure of this utility model.

[0013] Figure 2 This is a side view of the overall structure of this utility model.

[0014] Figure 3 This is a bottom view of the overall structure of this utility model.

[0015] Figure 4 This is a schematic diagram of the internal structure of the present invention.

[0016] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0017] The following labels are used in the attached diagram: 1. Main unit, 2. Movable slider, 3. Touch screen, 4. Power switch, 5. Charging port, 6. Force sensor, 7. Detachable cylinder, 8. Electric push rod, 9. Linkage rod, 10. Battery, 11. Control board, 12. Paddle, 13. Fixing screw, 14. Threaded hole, 15. Strong magnet. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0019] A device for comprehensive measurement of elevator landing doors includes a main body 1 and a movable slider 2. A touchscreen 3 is located on the top of the main body 1, a power switch 4 and a charging port 5 are installed on one side, and a T-shaped force sensor 6 and a detachable cylinder 7 are located at the front. The detachable cylinder 7 has protruding external threads and is fixed to the force sensor 6 by these threads. The upper part of the force sensor 6 is connected to an electric push rod 8 and a linkage rod 9. The main body 1 internally includes a battery 10, a control motherboard 11, and the electric push rod 8. The battery 10 is arranged horizontally at the end of the main body 1. The main board 11 is fixed inside one side of the main device 1. The movable slider 2 has two downward-bent and vertically extending tabs 12 at its front, forming an opposing extension structure with the force sensor 6. The movable slider 2 is fixed and connected to the main device 1 via a slide rail, enabling parallel movement of the movable slider 2 relative to the main device 1. The movable slider 2 is fixed in position by fixing screws 13. The movement distance of the movable slider 2 is fixed by moving the fixing screws 13 to different threaded holes 14. Several strong magnets 15 are installed below the movable slider 2, also fixed by external threads. The touch screen 3, power switch 4, charging port 5, force sensor 6, electric push rod 8, and battery 10 are all electrically connected to the main board 11.

[0020] Preferably, after pressing the power switch 4, the battery 10 starts to supply power to the control motherboard 11 and all the components electrically connected thereto. This measuring device transmits signals to the control motherboard 11 through the touch screen 3. The control motherboard 11 controls the electric push rod 8 to extend, placing the main device 1 on the door sill. The paddle 12 is locked in the gap of the door sill. The electric push rod 8, along with the power sensor 6, the detachable cylinder 7, and the linkage rod 9, extends through the control touch screen 3. The electric push rod 8 continues to push forward until the detachable cylinder 7 lightly touches the foot guard. When the force sensor 6 has just exerted a force value, it records the extension distance at this time as the initial value. The electric push rod 8 continues to extend forward, causing the foot guard to deform. The difference between the real-time distance value and the recorded initial extension distance value is the elastic deformation. After the force value reaches the measurement standard, it automatically retracts. The position where the force value returns to zero is the final value. The difference between the final value and the initial value is the permanent deformation. Measuring the door opening gap involves inserting the force sensor 6 and the protruding part of the lever 12 laterally into the gap of the elevator landing door. The strong magnet 15 can assist in fixing it, eliminating the need for manual fixation. The force sensor 6 and the lever 12 separate relative to each other, causing the landing door to open. The final distance the electric push rod 8 extends when the specified force value is reached is recorded as the door opening gap. If the distance between the elevator door sill and the foot guard plate varies and exceeds the maximum extension distance of the electric push rod, the position can be flexibly moved using a movable slider. The fixing screw 13 is then tightened into a suitable threaded hole 14 to fix the final selected position.

[0021] The overall measurement process of this device is as follows: When measuring the door opening gap, remove the detachable cylinder 7, place the main equipment 1 in a suitable position according to the site requirements, close the elevator door normally so that the force sensor 6 and the lever 12 can be inserted into the door gap, press the power switch 4, press the touch screen 3 to select the door opening gap and start the measurement. The force sensor 6 will start to push out at a constant speed relative to the lever. When the force pulling the door reaches the force value required by the inspection regulations, the electric push rod 8 will automatically return to its original position, and the measurement result will be obtained at this time. When measuring the strength of the foot guard, install the detachable cylinder 7, and clip the lever 12 onto the door sill. Similarly, operate the touch screen 3 to select the foot guard measurement. After the measurement is completed, it will automatically return to its original position and display the final result.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for comprehensive measurement of an elevator landing door, characterized in that Including the main body device (1) and the movable slider (2), the main body device (1) is provided with a touch screen (3) directly above, a power switch (4) and a charging port (5) are installed on one side, a T-shaped force sensor (6) and a detachable cylinder (7) are arranged at the front, the detachable cylinder (7) has a protruding external thread, and the force sensor (6) is fixed by the thread, the upper half of the force sensor (6) is connected with an electric push rod (8) and a linkage rod (9), the main body device (1) comprises a battery (10), a control mainboard (11) and the electric push rod (8), the battery (10) is arranged in a horizontal and parallel posture at the end of the main body device (1), the control mainboard (11) is fixed on one side of the main body device (1), the movable slider (2) has two downward bending and vertical flaps (12) at the front, which form an opposite extension structure with the force sensor (6), the movable slider (2) is fixed and connected with the main body device (1) through a slide rail, realizing parallel movement of the movable slider (2) relative to the main body device (1), the fixed position of the movable slider (2) relies on a fixing screw (13), the fixing screw (13) is moved to different threaded holes (14) to fix the moving distance of the movable slider (2), a plurality of strong magnets (15) are arranged below the movable slider (2) and are also fixed by external threads, the touch screen (3), the power switch (4), the charging port (5), the force sensor (6), the electric push rod (8) and the battery (10) are electrically connected to the control mainboard (11).

2. A device for comprehensive measurement of elevator landing door according to claim 1, characterized in that, The main body device (1) is made of 6061 aluminum alloy through CNC, and the surface adopts sandblasting anodizing technology.

3. A device for comprehensive measurement of elevator landing door according to claim 1, characterized in that, The detachable cylinder (7) is connected to the force sensor (6), and when installed, it meets the 5cm² contact area required for measuring the strength of the foot guard plate, and when removed, it normally measures the door opening gap.

4. A device for comprehensive measurement of elevator landing door according to claim 1, characterized in that, The movable slider (2) moves through the slide rail to change the measurement position of the main body device (1), and the final measurement position is selected by fixing the fixing screw (13) in different threaded holes (14).

5. A device for comprehensive measurement of elevator landing door according to claim 1, characterized in that, The force sensor (6) is T-shaped as a whole, and the lower half is a measurement part, which cooperates with the flaps (12) on the movable slider (2) to separate to the opposite side to measure the door opening gap and the strength of the foot guard plate.

6. A device for comprehensive measurement of elevator landing door according to claim 1, characterized in that, The linkage rod (9) can increase the stability of the T-shaped force sensor (6), ensure that the upper half of the force sensor (6) remains stationary when the lower half receives extrusion deformation, and ensure the accuracy of the data deformation.

7. A device for comprehensive measurement of elevator landing door according to claim 1, characterized in that, The strong magnets (15) below the movable slider can be attracted and fixed when measuring the door opening gap, without the need for manual fixing.

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