Comprehensive measuring device for brake performance parameters of special equipment of ladder type

Abstract

The application relates to a kind of comprehensive measuring device of ladder special equipment braking performance parameters, and relates to the technical field of ladder special equipment, which can effectively improve the accuracy of measurement results.In the comprehensive measuring device of ladder special equipment braking performance parameters, the single-chip microcomputer in the electrical element of the measuring host is the operation control unit of the measuring host;the three-axis acceleration sensor is used to realize continuous measurement of acceleration in three orthogonal directions, simultaneously sends data to the single-chip microcomputer, and stores the data in the data storage chip after processing by the single-chip microcomputer;the data storage chip is used to store the data being measured or historical measurement data, and call historical data;touch display screen and key are used for man-machine interaction to realize the control of measuring personnel on the measuring host;the touch display screen is used to display data text or data curve during measurement or after measurement;the wireless communication module is used to realize wireless connection and communication between the measuring host and external equipment to realize external data sharing.

Description

Technical Field

[0001] This utility model relates to the technical field of special equipment such as elevators, escalators, and moving walkways, and in particular to a comprehensive measuring device for braking performance parameters of special equipment such as elevators. Background Technology

[0002] Currently, elevators, escalators, and moving walkways are transportation tools closely related to people's production and daily life, and also constitute the largest number of electromechanical special equipment. By the end of 2024, my country had more than 11 million elevators, escalators, and moving walkways. With the continuous improvement of my country's economic and social development level and people's living standards, people are paying more and more attention to their safety performance.

[0003] Elevator inspection and testing are important regulatory measures to ensure the safe and stable operation of elevators, escalators, and moving walkways. Among them, braking performance is an important safety feature that ensures that elevators, escalators, and moving walkways decelerate to protect passengers in the event of emergencies such as power outages, unexpected malfunctions, or accidental activation of the emergency stop switch.

[0004] The Special Equipment Safety Technical Specification "TSG T7001-2023 Rules for Supervision and Periodic Inspection of Elevators" issued and implemented by the State Administration for Market Regulation has clear requirements for the braking performance of elevators, escalators, and moving walkways, which are mandatory safety items in the elevator inspection process; specifically, braking distance, average braking deceleration, and braking time are important braking performance parameters.

[0005] Traditional inspection processes typically involve manually cutting off power to elevators, escalators, and moving walkways and visually observing the stopping distance to make a preliminary judgment on braking performance. However, this method suffers from drawbacks such as inconsistency in quantitative data, low repeatability, and susceptibility to misjudgment. Alternatively, a roller-type speed measuring device based on the photoelectric rotary coding principle can be used to measure the speed and displacement of elevator wire ropes or escalator steps. However, this method suffers from inaccurate measurement data due to the periodic twist of the elevator traction wire rope surface, and the speed measuring wheel easily detaching from the surface of the measured object, leading to inaccurate results. Furthermore, the on-site installation process is cumbersome, and the surface of the speed measuring wheel is prone to wear.

[0006] The inventors of this application have discovered that accelerometers, based on the principle of inertia, can quickly measure the velocity and displacement of an object by numerically integrating the acceleration. The object motion parameter measurement device based on the accelerometer has technical advantages such as convenient clamping during the measurement process, accurate reflection of the actual motion state of the measured moving object, and small and portable structure. At the same time, compared with single-axis accelerometers, triaxial accelerometers have advantages such as comprehensive data and greater freedom of data analysis, and can be used for rapid on-site measurement of braking performance parameters of elevators, escalators, and moving walkways. Utility Model Content

[0007] The purpose of this invention is to provide a comprehensive measuring device for braking performance parameters of ladder-type special equipment, which can effectively improve the accuracy of the measurement results.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A comprehensive measuring device for braking performance parameters of ladder-type special equipment includes: a measuring host, and a tapered support or measuring fixing module connected to the measuring host; The measurement host includes a housing, within which electrical components are housed. These electrical components include a microcontroller, a triaxial accelerometer, buttons, a touchscreen display, a data storage chip, and a wireless communication module. The microcontroller serves as the computational control unit of the measurement host. The triaxial accelerometer, built into the housing, continuously measures the acceleration of the elevator car, escalator, or moving walkway steps in three orthogonal directions, transmitting the data to the microcontroller, which then processes and stores it in the data storage chip. The triaxial accelerometer is either an analog output type or a chip-based digital accelerometer. The data storage chip stores the data being measured or historical measurement data, and allows for the retrieval of historical data. The touchscreen display and buttons facilitate human-machine interaction, enabling the measurement operator to control the measurement host. The touchscreen display shows the data text or curves generated during or after the measurement process. The wireless communication module enables wireless connection and communication between the measurement host and external devices, facilitating data sharing.

[0009] In practical applications, the bottom surface of the measuring host has three internally threaded holes arranged in a triangle, and the three tapered legs are installed in the internally threaded holes on the bottom surface of the measuring host through a threaded connection. The tapered support is used for measuring elevator braking performance parameters. When measuring the braking performance parameters of escalators or moving walkways, the tapered support is removed and the measurement fixing module is used in conjunction with the measurement host for measurement.

[0010] The measurement fixing module includes: a mounting base plate, a measurement host fixing element, and a ladder fixing element; the measurement host fixing element includes: a fixed baffle, a movable baffle, and a hand-tightening nut; the ladder fixing element includes: a clamp, a fixed jaw, and a movable jaw. The fixed baffle, the clamp, and the fixed jaw are fixed to the mounting base plate by a threaded connection; the movable baffle is used to adjust its position on the mounting base plate by tightening or loosening the hand-tightening nut, so as to clamp the measuring host on the measuring fixed module; the movable jaw is fixedly installed on the end of the clamp.

[0011] Specifically, the fixed baffle, the movable baffle, and the fixed claw are all L-shaped structures; the movable claw is a sheet-like structure.

[0012] Furthermore, the mounting base plate is a plate-shaped structure, and the mounting base plate has multiple threaded through holes for fixing the fixed baffle, the movable baffle, the clamp, and the fixed claw in the measurement fixing module.

[0013] Furthermore, the movable baffle is an L-shaped plate element, with a sliding groove on one arm, and through the sliding groove, it cooperates with the screws on the mounting base plate and the hand-tightening nut to clamp the measuring host.

[0014] Furthermore, the clamp includes: a clamp base, a crank, a connecting rod, and a sliding rod, and the mechanical structure of the clamp is a crank-slider mechanism; The clamp base is fixed to the mounting base plate by a threaded connection. The crank is mounted to the clamp base by a pin and can rotate around the pin. While rotating, the crank can indirectly control the sliding rod to move within the clamp base in a limited position through the connecting rod.

[0015] Furthermore, the movable claw is fixedly installed at the end of the sliding rod, and the sliding rod moves in the clamp base to change the position of the movable claw, and is used to fix and clamp the entire device in the tooth groove of the escalator or moving walkway step.

[0016] Compared with existing technologies, the comprehensive measuring device for braking performance parameters of ladder-type special equipment described in this utility model has the following advantages: The comprehensive measuring device for braking performance parameters of special equipment such as ladders provided by this utility model is portable. The measurement results can be viewed directly through the measuring host without the need for external data processing modules such as smartphones or tablets. Furthermore, it is compatible with the rapid on-site measurement of braking performance parameters of three types of equipment: vertical elevators, escalators, and moving walkways. In addition, by using claws to firmly place the device in the toothed grooves of the escalator or moving walkway steps, it can effectively measure the actual acceleration data during the braking process of the escalator or moving walkway, thereby avoiding unstable contact between the measuring device and the measured escalator or moving walkway steps during the measurement process, which would affect the accuracy of the measurement results. Attached Figure Description

[0017] Figure 1 A schematic diagram of the electrical control principle of the comprehensive measurement device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 2 A schematic diagram of the measuring host in the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 3 A schematic diagram of the measuring and fixing module in the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 4 A first-view assembly structure diagram of the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 5 A second-view assembly structure diagram of the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 6 A schematic diagram of the mounting base plate in the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 7 A schematic diagram of the movable baffle in the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 8 A cross-sectional view of the fixture in the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 9 A reference diagram showing the first usage state of the comprehensive measurement device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model; Figure 10 A reference diagram showing the second usage state of the comprehensive measurement device for braking performance parameters of ladder-type special equipment provided in this embodiment of the utility model.

[0018] Figure label: 1-Measuring main unit; 11-Housing; 12-Buttons; 13-Touch display screen; 2-Conical support feet; 3-Measuring and fixing module; 31-Mounting base plate; 311-Threaded through hole; 32-Measuring main unit fixing element; 33-Step fixing element; 321-Fixed baffle; 322-Modible baffle; 3221-Sliding groove; 323-Hand-tightening nut; 331-Clamp; 3311-Clamp base; 3312-Crank; 3313-Connecting rod; 3314-Sliding rod; 332-Fixed pawl; 333-Modible pawl. Detailed Implementation

[0019] For ease of understanding, the following description, in conjunction with the accompanying drawings, details the comprehensive measuring device for braking performance parameters of ladder-type special equipment provided in this utility model embodiment.

[0020] This utility model embodiment provides a comprehensive measurement device for braking performance parameters of ladder-type special equipment, such as... Figures 1-10 As shown, it includes: a measuring host 1, and a tapered support 2 or a measuring fixing module 3 connected to the measuring host 1; The measurement host 1 includes a housing 11, within which electrical components are housed. These components include a microcontroller, a triaxial accelerometer, buttons 12, a touchscreen display 13, a data storage chip, and a wireless communication module. The microcontroller serves as the computation and control unit of the measurement host 1. The triaxial accelerometer, built into the housing 11, continuously measures the acceleration of the elevator car, escalator, or moving walkway steps in three orthogonal directions, sending the data to the microcontroller for processing and storage in the data storage chip. The triaxial accelerometer is either an analog output accelerometer or a chip-based digital accelerometer (e.g., a MEMS triaxial accelerometer). The data storage chip stores the data being measured or historical measurement data, and allows for the retrieval of historical data. The touchscreen display 13 and buttons 12 facilitate human-machine interaction, enabling the measurement operator to control the measurement host 1 (e.g., inputting the device under test). The measurement process includes: selecting parameters, choosing the type of equipment under test (elevator, escalator, moving walkway), selecting the three-axis acceleration data sampling rate, executing the start or end test command, saving test results, and deleting test results. The touchscreen display 13 is used to display data text or data curves during or after the measurement process. The wireless communication module enables wireless connection and communication between the measurement host 1 and external devices to share data (it can be a Wi-Fi communication module, Bluetooth communication module, LoRa communication module, etc.). For example, the measurement host can establish communication with a smartphone via the wireless communication module, sending measurement data to the mobile phone for further analysis and display by the mobile application (APP). Alternatively, during the test, the smartphone can wirelessly control the measurement host to execute the start or end test command via the wireless communication module, replacing manual touchscreen operation by the measurement personnel, enabling convenient remote control.

[0021] Compared with the prior art, the comprehensive measuring device for braking performance parameters of ladder-type special equipment described in this utility model embodiment has the following advantages: The comprehensive measuring device for braking performance parameters of special equipment such as ladders provided in this embodiment is portable. The measurement results can be viewed directly through the measuring host without the need for external data processing modules such as smartphones or tablets. Furthermore, it is compatible with the rapid on-site measurement of braking performance parameters of three types of equipment: vertical elevators, escalators, and moving walkways. In addition, by using claws to firmly place the device in the toothed grooves of the escalator or moving walkway steps, it can effectively measure the actual acceleration data during the braking process of the escalator or moving walkway, thereby avoiding unstable contact between the measuring device and the measured escalator or moving walkway steps during the measurement process, which would affect the accuracy of the measurement results.

[0022] In practical applications, such as Figure 9 As shown, the bottom surface of the above-mentioned measuring host 1 can have 3 internal threaded holes arranged in a triangle, and 3 tapered support legs 2 can be installed in the internal threaded holes on the bottom surface of the measuring host 1 by means of threaded connection. The aforementioned tapered support 2 is used for measuring elevator braking performance parameters. When measuring the braking performance parameters of escalators or moving walkways, the tapered support 2 is removed, and the measurement fixing module 3 is used in conjunction with the measurement host 1 for measurement.

[0023] Among them, such as Figures 3-5 As shown, the above-mentioned measurement fixing module 3 may include: a mounting base plate 31, a measurement host fixing element 32, and a ladder fixing element 33; the measurement host fixing element 32 may include: a fixed baffle 321, a movable baffle 322, and a hand-tightening nut 323; the ladder fixing element 33 may include: a clamp 331, a fixed claw 332, and a movable claw 333. The fixed baffle 321, clamp 331 and fixed claw 332 can all be fixed to the mounting base plate 31 by threaded connection; the movable baffle 322 can be adjusted on the mounting base plate 31 by tightening the hand nut 323 so that the measuring host 1 can be clamped on the measuring fixed module 3; the movable claw 333 can be fixedly installed on the end of the clamp 331.

[0024] Specifically, such as Figures 3-5 As shown, the fixed baffle 321, the movable baffle 322, and the fixed claw 332 can all be L-shaped structures; the movable claw 333 can be a sheet-like structure.

[0025] Furthermore, such as Figure 6 As shown, the mounting base plate 31 can be a plate-shaped structure, and the mounting base plate 31 can have multiple threaded through holes 311 for fixing the fixed baffle 321, movable baffle 322, clamp 331 and fixing claw 332 in the measurement fixing module 3.

[0026] Furthermore, such as Figure 7As shown, the movable baffle 322 can be an L-shaped plate element, with a sliding groove 3221 on one arm. The sliding groove 3221 engages with screws and a hand-tightening nut 323 on the mounting base plate 31 to clamp the measuring host 1. During installation, the measuring host 1 is placed between the fixed baffle 321 and the movable baffle 322 on the mounting base plate 31. The hand-tightening nut 323 is loosened, the position of the movable baffle 322 is adjusted, and the measuring host 1 is clamped between the fixed baffle 321 and the movable baffle 322. The hand-tightening nut 323 is then tightened, thus effectively fixing the measuring host 1. Figure 4 As shown.

[0027] Furthermore, such as Figure 8 As shown, the above-mentioned clamp 331 may include: clamp base 3311, crank 3312, connecting rod 3313, and sliding rod 3314, and the mechanical structure of the clamp 331 is a crank-slider mechanism. The fixture base 3311 can be fixed to the mounting base 31 by threaded connection. The crank 3312 can be installed on the fixture base 3311 by a pin and can rotate around the pin. While rotating, it can indirectly control the sliding rod 3314 to move within the fixture base 3311 by connecting rod 3313.

[0028] Furthermore, such as Figures 3-5 As shown, the movable claw 333 can be fixedly installed at the end of the sliding rod 3314, and the sliding rod 3314 moves in the clamp base 3311 to change the position of the movable claw 333, and is used to fix the entire device in the toothed grooves of the escalator and moving walkway steps, such as... Figure 10 As shown.

[0029] The following is a detailed description of the usage process of the comprehensive measurement device for braking performance parameters of ladder-type special equipment provided in this embodiment of the present invention, with reference to the accompanying drawings: like Figure 9 As shown, three conical supports 2 are installed on the bottom of the measuring host 1, and the measuring host 1 is placed in the center of the elevator car floor. The measuring host 1 is controlled by manually touching the touch screen 13 or by wirelessly controlling it with a smartphone to execute the start measurement command. Then the measuring host 1 starts to continuously collect acceleration data on the x-axis, y-axis and z-axis. When the personnel leave the elevator car, the elevator is controlled to descend. When the elevator is running at a constant speed, an emergency stop operation is performed. When the personnel enter the car, the acceleration data collection ends. Then the measuring host 1 automatically calculates the elevator stopping distance, average stopping deceleration and stopping time, and displays them on the touch screen 13. like Figure 10As shown, the measuring host 1 is fixedly installed on the measuring fixing module 3, and the entire device is placed on the step surface, so that the fixed claw 332 and the movable claw 333 are embedded in the step tread groove, and the crank 3312 of the two clamps 331 is pressed to fix the fixed claw 332 and the movable claw 333 in the step tread groove, thereby fixing the measuring device; the measuring host 1 is controlled by manually touching the touch screen 13 or by wirelessly controlling it with a smartphone to execute the start measurement command, and then the measuring host 1 starts to continuously collect the acceleration data of the x-axis, y-axis and z-axis; when the person leaves the escalator or moving walkway, the escalator or moving walkway is controlled to move downwards. When it enters the uniform speed operation stage, the person performs an emergency stop operation on the escalator or moving walkway (for example, pressing the emergency stop switch). After the equipment stops, the acceleration data acquisition ends, and then the measuring host 1 automatically calculates the stopping distance, average stopping deceleration and stopping time of the escalator or moving walkway, and displays them on the touch screen 13.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for measuring the braking performance parameters of special equipment of ladders, characterized in that it comprises: include: A measuring host, and a tapered support or measuring fixing module connected to the measuring host; The measurement host includes a housing, within which electrical components are housed. These electrical components include a microcontroller, a triaxial accelerometer, buttons, a touchscreen display, a data storage chip, and a wireless communication module. The microcontroller serves as the computational control unit of the measurement host. The triaxial accelerometer, built into the housing, continuously measures the acceleration of the elevator car, escalator, or moving walkway steps in three orthogonal directions, transmitting the data to the microcontroller, which then processes and stores it in the data storage chip. The triaxial accelerometer is either an analog output type or a chip-based digital accelerometer. The data storage chip stores the data being measured or historical measurement data, and allows for the retrieval of historical data. The touchscreen display and buttons facilitate human-machine interaction, enabling the measurement operator to control the measurement host. The touchscreen display shows the data text or curves generated during or after the measurement process. The wireless communication module enables wireless connection and communication between the measurement host and external devices, facilitating data sharing.

2. The comprehensive measuring device for the braking performance parameters of the ladder special equipment according to claim 1, characterized in that, The bottom surface of the measuring host has three internal threaded holes arranged in a triangle, and the three tapered legs are installed in the internal threaded holes on the bottom surface of the measuring host by threaded connection. The tapered support is used for measuring elevator braking performance parameters. When measuring the braking performance parameters of escalators or moving walkways, the tapered support is removed and the measurement fixing module is used in conjunction with the measurement host for measurement.

3. The ladder special equipment brake performance parameter comprehensive measuring device according to claim 1, characterized in that, The measurement fixing module includes: a mounting base plate, a measurement host fixing element, and a ladder fixing element; the measurement host fixing element includes: a fixed baffle, a movable baffle, and a hand-tightening nut; the ladder fixing element includes: a clamp, a fixed jaw, and a movable jaw. The fixed baffle, the clamp, and the fixed jaw are fixed to the mounting base plate by a threaded connection; the movable baffle is used to adjust its position on the mounting base plate by tightening or loosening the hand-tightening nut, so as to clamp the measuring host on the measuring fixed module; the movable jaw is fixedly installed on the end of the clamp.

4. The ladder special equipment brake performance parameter comprehensive measuring device according to claim 3, characterized in that, The fixed baffle, the movable baffle, and the fixed claw are all L-shaped structures; the movable claw is a sheet-like structure.

5. The device according to claim 3 or 4, characterized in that, The mounting base plate has a plate-like structure and multiple threaded through holes for fixing the fixed baffle, the movable baffle, the clamp, and the fixing claw in the measurement fixing module.

6. The ladder special equipment brake performance parameter comprehensive measuring device according to claim 4, characterized in that, The movable baffle is an L-shaped plate element, with a sliding groove on one arm. The sliding groove cooperates with the screws on the mounting base and the hand-tightening nut to clamp the measuring host.

7. The comprehensive measuring device for braking performance parameters of ladder-type special equipment according to claim 3, characterized in that, The clamp includes: a clamp base, a crank, a connecting rod, and a sliding rod, and the mechanical structure of the clamp is a crank-slider mechanism; The clamp base is fixed to the mounting base plate by a threaded connection. The crank is mounted to the clamp base by a pin and can rotate around the pin. While rotating, the crank can indirectly control the sliding rod to move within the clamp base in a limited position through the connecting rod.

8. The ladder special equipment brake performance parameter comprehensive measuring device according to claim 7, characterized in that, The movable claw is fixedly installed at the end of the sliding rod, and the sliding rod moves in the clamp base to change the position of the movable claw, and is used to fix and clamp the entire device in the tooth groove of the escalator or moving walkway step.

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