Elevator safety gear performance detection system

Abstract

The application relates to the field of elevator anti-falling devices, and particularly discloses an elevator anti-falling device performance detection system, which comprises an adapter and an anti-falling device body, the top of the anti-falling device body is provided with the detachable adapter, the output end of the adapter is electrically connected with the input end of the locking mechanism of the elevator, the top of the adapter is provided with a first speed sensor, the inside of the anti-falling device body is provided with a second speed sensor, and the output ends of the second speed sensor and the first speed sensor are electrically connected with the input end of the adapter. The end of the anti-falling device body is connected with the mounting flange through the connecting seat, the mounting flange facilitates the mounting and dismounting of the anti-falling device body, the inside of the anti-falling device body is provided with the mounting seat, the one end of the mounting seat is provided with the lock cap, the lock cap facilitates the locking and fixing of the mounting seat, and the second speed sensor is conveniently mounted through the mounting seat.

Description

Technical Field

[0001] This invention relates to the field of elevator fall arrestors, specifically to an elevator fall arrestor performance testing system. Background Technology

[0002] A construction hoist fall arrestor is a mechanical safety protection device primarily used to prevent the hoist cage from falling, ensuring the safety of personnel and equipment. It automatically triggers braking when the cage descends at excessive speed, preventing accidents. Currently, rack and pinion driven construction hoists, widely used on construction sites, are generally equipped with gear-cone drum progressive fall arrestors. According to national standards, their effective calibration period must not exceed one year, and they must be inspected and calibrated annually regardless of use. They are mandatory scrapping five years after manufacture.

[0003] For example, the authorized patent with publication number CN207142561U (Construction Hoist Fall Preventer): belongs to the field of hoist technology and provides a construction hoist fall preventer with a simple and reasonable structure, easy installation and maintenance, and good braking effect. The technical solution adopted includes a frame set on the cage track, a roller frame set at the top of the frame with rollers installed on the roller frame, a guide wheel frame set at the bottom of the frame with guide wheels installed on the guide wheel frame, a fixed clamping plate and a movable clamping plate fixed inside the frame, friction plates installed on both the fixed clamping plate and the movable clamping plate, a nut set on the frame, a lead screw set inside the nut, one end of the lead screw rotatably mounted on the movable clamping plate, and a worm gear installed on the other end, a worm connected to the worm gear on the output shaft of the drive motor, an acceleration sensor installed on the cage, the acceleration sensor connected to a microprocessor, and the microprocessor connected to the drive motor through a motor controller; this invention is widely used in construction hoists; The detection module of the existing elevator fall arrestor is not convenient to install and fix, and it cannot perform multi-directional simultaneous speed measurement, which makes its fall arrest detection and control inefficient, affecting the fall arrest detection effect. The main body of the fall arrestor is also not convenient to install and fix. Summary of the Invention

[0004] The purpose of this invention is to provide a performance testing system for elevator fall arresters, in order to solve the problems mentioned in the background art, such as the inconvenience of installing and fixing the detection module of the elevator fall arrester, the inability to perform simultaneous multi-directional speed measurement, the inefficiency of its fall arrest detection and control, the impact on the fall arrest detection effect, and the inconvenience of installing and fixing the main body of the fall arrester.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a performance testing system for a lift fall arrestor, comprising an adapter and a fall arrestor body, wherein the top of the fall arrestor body is provided with a detachable adapter, the output end of the adapter is electrically connected to the input end of the locking mechanism of the lift, the top of the adapter is provided with a first speed sensor, and the interior of the fall arrestor body is provided with a second speed sensor, the output ends of the second speed sensor and the first speed sensor are both electrically connected to the input end of the adapter.

[0006] In a further embodiment, a mounting base is also included, which is disposed inside the body of the fall arrester, and a locking cap is provided at the end of the mounting base, with one end of the second speed sensor inserted into the mounting base.

[0007] In a further embodiment, the other end of the second speed sensor is provided with a power connector, the top of the lock cap is provided with a mounting head, and the middle of the lock cap is provided with a probe hole.

[0008] In a further embodiment, the end of the fall arrestor body is connected to the mounting flange via a connecting seat, the mounting flange has a positioning locking hole in the middle, the locking cap is connected to the positioning locking hole via a mounting head, and the mounting seat is connected to the locking cap via a connecting pipe.

[0009] In a further embodiment, the adapter has an adapter on one side, a power distribution connector at the end of the adapter, and a multi-directional power distribution connector inside the adapter, which is connected to the adapter.

[0010] In a further embodiment, the end of the first speed sensor is provided with a first connector, which is connected to the upper interface on the multi-directional power distribution connector.

[0011] In a further embodiment, the adapter has a screw head at the bottom, which is threaded to the threaded hole at the top of the fall arrester body. It also includes an access sleeve, the end of which has a second connector, which is connected to the lower interface on the multi-directional power distribution connector. The power connection pin is electrically connected to the access sleeve.

[0012] In a further embodiment, the adapter integrates a data processing chip, a fault diagnosis module, and an audible and visual warning module. The data processing chip is electrically connected to the first speed sensor, the second speed sensor, the fault diagnosis module, and the audible and visual warning module. The fault diagnosis module collects power supply on / off, signal distortion, and short circuit / open circuit fault signals from the two speed sensors in real time. When any sensor malfunctions or the speed difference between the two sensors exceeds a preset threshold, the data processing chip drives the audible and visual warning module to issue an audible and visual alarm and simultaneously sends a speed reduction buffer control signal to the elevator locking mechanism. The adapter has a built-in storage module, which is electrically connected to the data processing chip. The storage module records the elevator's operating speed curve, sensor fault records, overspeed trigger records, and locking mechanism braking action records in real time, with each record having a timestamp. The storage module supports a local data export interface, which can retrieve the full-cycle performance test data of the fall arrestor offline. The adapter is equipped with a wireless communication module, which is connected to the data processing chip. The wireless communication module supports 4G / Bluetooth / WiFi multi-mode transmission and can remotely upload real-time speed measurement data, fault alarms, and braking records to the construction site monitoring terminal and cloud management platform. The cloud platform supports centralized online monitoring and over-limit alarm push of multiple elevator fall arrestors.

[0013] In a further embodiment, the adapter has a built-in automatic calibration module, which is connected to the first speed sensor and the second speed sensor respectively. After the system is powered on, the calibration process is automatically started, and the standard operating speed of the elevator under no-load and rated load is collected respectively. The detection deviation of the two speed sensors is automatically corrected, and a calibration qualified mark is generated and stored in the storage module. When the one-year calibration cycle threshold is reached, a calibration reminder is automatically pushed.

[0014] In a further embodiment, a temperature sensor is added inside the probe hole in the middle of the lock cap. The temperature sensor is electrically connected to the access bushing and connected to a multi-directional power distribution connector. The temperature sensor collects the temperature of the internal braking friction components of the fall arrestor in real time. When the temperature exceeds the safety threshold, the data processing chip triggers an alarm with the sound and light warning module and limits the high-speed operation of the elevator to avoid high-temperature braking failure.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The main body of the fall arrester of this invention is connected to the mounting flange via a connecting seat. The mounting flange facilitates the installation and disassembly of the main body of the fall arrester. An mounting seat is provided inside the main body of the fall arrester. A locking cap is provided at one end of the mounting seat, and the locking cap facilitates the locking and fixing of the mounting seat. The mounting seat facilitates the installation of the second speed sensor.

[0016] 2. This invention includes an adapter, which is threaded and fixed by a screw head for easy installation and disassembly. An adapter is provided on one side of the adapter, and a multi-directional power distribution connector is provided inside the adapter. The second connector is electrically connected to the multi-directional power distribution connector through the access sleeve. The second speed sensor is connected to the access sleeve through a power pin. This design facilitates the cooperation between the first speed sensor and the second speed sensor, ensuring the efficiency and effectiveness of speed measurement. At the same time, the speed detection effect can be transmitted to the elevator locking mechanism in a timely manner through the adapter, facilitating timely fall protection. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the adapter of the present invention; Figure 3 This is a schematic diagram of the structure of the mounting base of the present invention; Figure 4 This is a schematic diagram of the structure of the first speed sensor of the present invention; Figure 5 This is a cross-sectional view of the present invention; Figure 6 This is a bottom view of the flange mounting point of the present invention; Figure 7 This is a bottom view of the lock cap of the present invention; Figure 8 This is a schematic diagram of the structure of part A of the present invention.

[0018] In the diagram: 1. Adapter; 2. Fall arrestor body; 3. Connecting seat; 4. Mounting flange; 5. Lock cap; 6. First speed sensor; 7. Power connector; 8. Adapter; 9. Screw head; 10. Connecting sleeve; 11. Mounting head; 12. Power connection pin; 13. Second speed sensor; 14. Mounting seat; 15. Positioning lock hole; 16. Probe hole; 17. First connector; 18. Multi-directional power connector; 19. Second connector. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figure 1-8 This invention provides an embodiment of a lift fall arrestor performance testing system, comprising an adapter 1 and a fall arrestor body 2. The top of the fall arrestor body 2 is provided with a detachable adapter 1, which is used to convert electrical signals into data information and transfer them to the control end of the locking mechanism. The output end of the adapter 1 is electrically connected to the input end of the locking mechanism of the lift. The top of the adapter 1 is provided with a first speed sensor 6, and the inside of the fall arrestor body 2 is provided with a second speed sensor 13. The output ends of the second speed sensor 13 and the first speed sensor 6 are both electrically connected to the input end of the adapter 1. The speed of the lift is detected by the cooperation of the first speed sensor 6 and the second speed sensor 13. The first speed sensor 6 and the second speed sensor 13 are respectively set to LDM41 model to detect the running speed of the elevator in real time.

[0021] It also includes a mounting base 14, which is located inside the main body 2 of the fall arrester. The end of the mounting base 14 is provided with a locking cap 5. One end of the second speed sensor 13 is inserted into the mounting base 14. The locking cap 5 facilitates the locking and fixing of the mounting base 14.

[0022] The other end of the second speed sensor 13 is provided with a power connector 12, the top of the lock cap 5 is provided with a mounting head 11, and the middle of the lock cap 5 is provided with a probe hole 16. The second speed sensor 13 can be electrically connected to the access sleeve 10 through the power connector 12.

[0023] The end of the fall arrester body 2 is connected to the mounting flange 4 via the connecting seat 3. The mounting flange 4 has a positioning lock hole 15 in the middle. The lock cap 5 is connected to the positioning lock hole 15 via the mounting head 11. The mounting seat 14 is connected to the lock cap 5 via the connecting pipe. The positioning lock hole 15 facilitates the installation of the lock cap 5.

[0024] One side of the adapter 1 is provided with an adapter 8, and the end of the adapter 8 is provided with a power distribution connector 7. The adapter 1 has a multi-directional power distribution connector 18 inside, and the multi-directional power distribution connector 18 is connected to the adapter 8. The adapter 8 facilitates the installation of power distribution conversion, and the power distribution connector 7 facilitates power distribution. The multi-directional power distribution connector 18 can be used to connect to the first speed sensor 6 and the second speed sensor 13 respectively. The end of the first speed sensor 6 is provided with a first plug 17, which is connected to the upper interface on the multi-directional power distribution connector 18. The first plug 17 is used to connect to the multi-directional power distribution connector 18 for power distribution.

[0025] The adapter 1 has a screw head 9 at the bottom, which is threaded to the threaded hole at the top. It also includes an access sleeve 10. The end of the access sleeve 10 has a second plug 19, which is connected to the lower interface on the multi-directional power distribution connector 18. The power connection pin 12 is electrically connected to the access sleeve 10. The screw head 9 facilitates the assembly of the adapter 1 and the fall arrestor body 2.

[0026] The adapter 1 integrates a data processing chip, a fault diagnosis module, and an audible and visual warning module. The data processing chip is electrically connected to the first speed sensor 6, the second speed sensor 13, the fault diagnosis module, and the audible and visual warning module. The fault diagnosis module collects power supply on / off, signal distortion, and short circuit / open circuit fault signals of the two speed sensors in real time. When any sensor malfunctions or the speed difference between the two sensors exceeds a preset threshold, the data processing chip drives the audible and visual warning module to issue an audible and visual alarm and simultaneously sends a speed reduction buffer control signal to the elevator locking mechanism. The adapter 1 has a built-in storage module, which is electrically connected to the data processing chip. The storage module records the elevator's operating speed curve, sensor fault records, overspeed trigger records, and locking mechanism braking action records in real time, with each record having a timestamp. The storage module supports a local data export interface, which can retrieve the full-cycle performance test data of the fall arrester offline. The adapter 1 is equipped with a wireless communication module, which is connected to the data processing chip. The wireless communication module supports 4G / Bluetooth / WiFi multi-mode transmission and can remotely upload real-time speed measurement data, fault alarms, and braking records to the construction site monitoring terminal and cloud management platform. The cloud platform supports centralized online monitoring of multiple elevator fall arrestors and push of over-limit alarms.

[0027] The adapter 1 has a built-in automatic calibration module, which is connected to the first speed sensor 6 and the second speed sensor 13 respectively. After the system is powered on, the calibration process is automatically started, and the standard operating speed of the elevator under no-load and rated load is collected respectively. The detection deviation of the two speed sensors is automatically corrected, and a calibration qualified mark is generated and stored in the storage module. When the one-year calibration cycle threshold is reached, a calibration reminder is automatically pushed.

[0028] A temperature sensor is added inside the probe hole 16 in the middle of the lock cap 5. The temperature sensor is electrically connected to the access sleeve 10 and connected to the multi-directional power distribution connector 18. The temperature sensor collects the temperature of the internal braking friction components of the fall arrestor in real time. When the temperature exceeds the safety threshold, the data processing chip triggers the sound and light warning module to alarm and restricts the high-speed operation of the elevator to avoid high temperature braking failure.

[0029] Working principle: In use, the adapter 1 and the fall arrestor body 2 are threaded together using the screw head 9. The fall arrestor body 2 can be flange-fixed using the mounting flange 4. The mounting base 14 is installed inside the fall arrestor body 2. The locking cap 5 is locked and fixed by the mounting head 11 and the positioning locking hole 15 in the middle of the mounting flange 4. The second speed sensor 13 is inserted and fixed to the mounting base 14. The second speed sensor 13 is electrically connected to the access sleeve 10 through the power connection pin 12. The first speed sensor 6 is electrically connected to the multi-directional power distribution connector 18 through the first connector 17. The access sleeve 10 is electrically connected to the multi-directional power distribution connector 18 through the second connector 19. The adapter 8 and its power distribution connector 7 facilitate power distribution to the locking mechanism.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A performance testing system for a lift fall arrestor, comprising an adapter (1) and a fall arrestor body (2), characterized in that: The top of the fall arrestor body (2) is provided with a detachable adapter (1). The output end of the adapter (1) is electrically connected to the input end of the locking mechanism of the elevator. The top of the adapter (1) is provided with a first speed sensor (6). The inside of the fall arrestor body (2) is provided with a second speed sensor (13). The output ends of the second speed sensor (13) and the first speed sensor (6) are both electrically connected to the input end of the adapter (1).

2. The elevator fall arrestor performance testing system according to claim 1, characterized in that: It also includes a mounting base (14), which is located inside the body (2) of the fall arrester. The end of the mounting base (14) is provided with a locking cap (5), and one end of the second speed sensor (13) is inserted into the mounting base (14).

3. The elevator fall arrestor performance testing system according to claim 2, characterized in that: The other end of the second speed sensor (13) is provided with a power-connecting pin (12), the top of the lock cap (5) is provided with a mounting head (11), and the middle of the lock cap (5) is provided with a probe hole (16).

4. The elevator fall arrestor performance testing system according to claim 3, characterized in that: The end of the fall arrester body (2) is connected to the mounting flange (4) via a connecting seat (3). The mounting flange (4) has a positioning lock hole (15) in the middle. The lock cap (5) is connected to the positioning lock hole (15) via a mounting head (11). The mounting seat (14) is connected to the lock cap (5) via a connecting pipe.

5. The elevator fall arrestor performance testing system according to claim 1, characterized in that: The adapter (1) has an adapter (8) on one side, a power distribution connector (7) at the end of the adapter (8), and a multi-directional power distribution connector (18) inside the adapter (1), and the multi-directional power distribution connector (18) is connected to the adapter (8).

6. The elevator fall arrestor performance testing system according to claim 1, characterized in that: The first speed sensor (6) has a first connector (17) at its end, which is connected to the upper interface on the multi-directional power distribution connector (18).

7. The elevator fall arrestor performance testing system according to claim 3, characterized in that: The adapter (1) has a screw head (9) at the bottom end, and the screw head (9) is threadedly fixed to the threaded hole at the top of the fall arrester body (2). It also includes an access sleeve (10), and the end of the access sleeve (10) is provided with a second plug (19), and the second plug (19) is connected to the lower interface on the multi-directional power distribution connector (18). The power connection pin (12) is electrically connected to the access sleeve (10).

8. The elevator fall arrestor performance testing system according to claim 1, characterized in that: The adapter (1) integrates a data processing chip, a fault diagnosis module, and an audible and visual warning module. The data processing chip is electrically connected to the first speed sensor (6), the second speed sensor (13), the fault diagnosis module, and the audible and visual warning module. The fault diagnosis module collects power supply on / off, signal distortion, and short circuit / open circuit fault signals of the two speed sensors in real time. When any sensor malfunctions or the speed difference between the two sensors exceeds a preset threshold, the data processing chip drives the audible and visual warning module to issue an audible and visual alarm and simultaneously sends a speed reduction buffer control signal to the elevator locking mechanism. The adapter (1) has a built-in storage module, which is electrically connected to the data processing chip; the storage module records the elevator's operating speed curve, sensor fault records, overspeed trigger records, and locking mechanism braking action records in real time. The adapter (1) is equipped with a wireless communication module, which is connected to the data processing chip. The wireless communication module supports 4G / Bluetooth / WiFi multi-mode transmission and remotely uploads real-time speed measurement data, fault alarms, and braking records to the construction site monitoring terminal and cloud management platform. The cloud platform supports centralized online monitoring of multiple elevator fall arrestors and push notifications for over-limit alarms.

9. The elevator fall arrestor performance testing system according to claim 8, characterized in that: The adapter (1) has a built-in automatic calibration module, which is connected to the first speed sensor (6) and the second speed sensor (13) respectively. After the system is powered on, the calibration process is started automatically. The standard operating speed of the elevator under no-load and rated load is collected respectively. The detection deviation of the two speed sensors is automatically corrected, and the calibration qualified mark is generated and stored in the storage module. When the one-year calibration cycle threshold is reached, the calibration reminder is automatically pushed.

10. The elevator fall arrestor performance testing system according to claim 3, characterized in that: A temperature sensor is added inside the probe hole (16) in the middle of the lock cap (5). The temperature sensor is electrically connected to the access sleeve (10) and connected to the multi-directional power distribution connector (18). The temperature sensor collects the temperature of the internal braking friction component of the fall arrestor in real time. When the temperature exceeds the safety threshold, the data processing chip will link the sound and light warning module to alarm and restrict the high-speed operation of the elevator.

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