Elevator toe guard strength detection device

Abstract

The utility model relates to the technical field of elevator detection, in particular to an elevator toe guard strength detection device which is adaptive to the force application distance requirements of different elevator models and can provide automatic control for equipment and prevent man-made misjudgment. Comprising a testing host, a sliding block assembly, a force application assembly and control assemblies, the sliding block assembly is installed at the bottom of the testing host, the force application assembly is installed in the testing host, and control parts are installed at the front end and the rear end in the testing host.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator testing, and in particular to a device for testing the strength of elevator footboards. Background Technology

[0002] The "Elevator Supervision and Periodic Inspection Rules" (TSGT7001-2023) clearly stipulates that the elevator car foot guards must meet the following requirements: When a static force of 300N is applied to a circular or square area of ​​5cm² below the vertical edge of the foot guard from the landing, its elastic deformation should not exceed 35mm. Existing technology announcement CN203365127U discloses a portable elevator car and foot guard mechanical strength tester, which uses a spring to provide pressure to the pressure column to pressurize the foot guard. However, using a spring for pressure application results in poor stability, leading to poor testing accuracy. Furthermore, each test requires manually removing the clamp from the T-slot to apply pressure to the test surface, making testing inconvenient. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an elevator footboard strength detection device that adapts to the force application distance requirements of different elevator models, can provide automated control of the equipment, and prevents human misjudgment.

[0004] This utility model discloses an elevator foot guard strength testing device, comprising a testing main unit, a sliding block assembly, a force application assembly, and a control assembly. The sliding block assembly is installed at the bottom of the testing main unit, the force application assembly is installed inside the testing main unit, and control components are installed at both the front and rear ends inside the testing main unit. The sliding block assembly limits the device's movement, adapting to the force application distance requirements of different elevator models. The force application assembly applies force to the vertical portion of the foot guard 5cm below it. 2 When static force is applied to the area, the control components can provide automated control of the equipment to determine whether it meets the strength standards stipulated by the national standards.

[0005] Preferably, the sliding block assembly includes two rails, a support rod, a insert plate, a connecting rod, two adjusting sliders, and two fixing bolts. The two rails are located at the front and rear ends of the bottom of the test host. Foot pads are provided at the left and right ends of the bottom of the rails. The support rod is fixedly connected to the left end of the two rails, and the insert plate is installed on the left side wall of the support rod. The connecting rod is connected to the right end of the rails. An adjusting groove is opened at the top of the rails, and the adjusting slider is slidably installed in the adjusting groove. The top of the adjusting slider is connected to the middle of the bottom end of the test host. Multiple fixing holes are opened on the rails, and the adjusting slider is connected to the rails through fixing bolts and fixing holes. In use, the insert plate is inserted into the elevator sill, the rails are placed on the ground, and the test host is pushed to make the adjusting slider slide in the adjusting groove of the rail. The adjusting slider is fixed by fixing bolts, which can adapt to the force application distance requirements of different elevator models.

[0006] Preferably, it also includes two rotating seats, two support arms, two screws, and two support plates. The two support arms are installed at the front and rear ends of the right side wall of the test host via the rotating seats. The end of the support arm away from the rotating seat is screwed with a screw. A knob is provided at the top of the screw, and a support plate is installed at the bottom of the screw. Confidential grooves are provided at the front and rear ends of the right side wall of the test host. In use, the support arms are rotated and opened on the rotating seats. The screws are rotated and moved downward by the knob, so that the support plates contact the ground and transmit the lateral pressure on the test host to the ground to support the test host.

[0007] Preferably, the force-applying component includes an electric push rod, a push plate, a pressure sensor, and a load-pressing rod. The electric push rod is installed in the middle of the right side wall of the test host. A push plate is installed at the telescopic end of the electric push rod. A load-pressing rod is installed in the middle of the left side wall of the push plate. The load-pressing rod is slidably installed on the left side wall of the test host. A pressure sensor is installed between the load-pressing rod and the push plate. Activating the electric push rod pushes the push plate, causing the load-pressing rod to move 5cm below the vertical part of the foot guard plate. 2 Static force is applied to the area, and the pressure value is accurately obtained through the pressure sensor. The test host is equipped with a displacement stroke protection function, and the electric push rod automatically returns to its original position after being triggered.

[0008] Preferably, it also includes two guide rods and a linear displacement sensor. The guide rods are symmetrically installed inside the test host about the front and rear of the load top rod. The front and rear ends of the push plate are slidably installed above the outer surface of the guide rods. The linear displacement sensor is installed at the bottom of the test host. The input end of the linear displacement sensor is connected to the bottom of the push plate. When the push plate moves, it slides on the outer wall of the guide rod to limit and guide it, increase the connection strength, and ensure the test accuracy. The linear displacement sensor collects elastic deformation and permanent deformation data in real time.

[0009] Preferably, the control components include a controller, a communication module, and a battery. The controller is installed inside the rear of the test host, while the communication module and battery are installed inside the front of the test host. The controller has a built-in GPS positioning module, an OCR nameplate recognition module, and an AI intelligent analysis unit, enabling automatic recording of the detection location, intelligent recognition of equipment information, and automated processing of the detection process. The controller integrates electric push rod motion control, data acquisition, and analysis algorithms to automatically determine whether it meets the national strength standard. The communication module integrates a low-power Bluetooth BLE communication module, supporting wireless connection with an Android terminal APP to realize the setting of detection parameters, real-time data transmission, and generation of graphical reports. The APP has a dynamic visualization function, can generate force-displacement two-dimensional curves, supports data scaling at any point, and Bluetooth printing of graphical reports containing QR codes. The battery is a rechargeable lithium battery equipped with a TYPE-C universal charging interface.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the sliding block assembly limits the device, adapting to the force application distance requirements of different elevator models; the force application assembly is used to apply force to the vertical part of the foot guard plate 5cm below. 2 When static force is applied to the area, the control components can provide automated control of the equipment to determine whether it meets the strength standards stipulated by the national standards. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the isometric structure of this utility model;

[0013] Figure 3 This is a schematic diagram of the lower three-dimensional structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of this utility model;

[0015] Figure 5 This is a schematic diagram of the internal structure of this utility model;

[0016] The following components are labeled in the attached diagram: 1. Test host; 2. Track; 3. Support rod; 4. Insert plate; 5. Connecting rod; 6. Adjusting slider; 7. Fixing bolt; 8. Foot pad; 9. Rotating seat; 10. Support arm; 11. Screw; 12. Support plate; 13. Electric push rod; 14. Push plate; 15. Guide rod; 16. Pressure sensor; 17. Load top rod; 18. Linear displacement sensor; 19. Controller; 20. Communication module; 21. Battery. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] like Figures 1 to 5As shown, two tracks 2 are located at the front and rear ends of the bottom of the test host 1. Foot pads 8 are provided at the left and right ends of the bottom of the tracks 2. Support rods 3 are fixedly connected to the left ends of the two tracks 2. Insert plates 4 are installed on the left side wall of the support rods 3. Connecting rods 5 are connected to the right ends of the tracks 2. Adjustment grooves are provided at the top of the tracks 2, and adjustment sliders 6 are slidably installed within these grooves. The top of the adjustment sliders 6 is connected to the middle of the bottom end of the test host 1. Multiple fixing holes are provided on the tracks 2, and the adjustment sliders 6 are connected to the tracks 2 via fixing bolts 7 and the fixing holes. Two support arms 10 are installed at the front and rear ends of the right side wall of the test host 1 via rotating seats 9. A screw rod 11 is screwed onto the end of the support arm 10 away from the rotating seat 9. A knob is provided at the top of the screw rod 11, and a support plate 12 is installed at the bottom of the screw rod 11. The right side of the test host 1... The front and rear ends of the wall are provided with clearance grooves. The electric push rod 13 is installed in the middle of the right side wall of the test host 1. The telescopic end of the electric push rod 13 is equipped with a push plate 14. The middle of the left side wall of the push plate 14 is equipped with a load top rod 17. The load top rod 17 is slidably installed on the left side wall of the test host 1. A pressure sensor 16 is installed between the load top rod 17 and the push plate 14. Inside the test host 1, guide rods 15 are symmetrically installed about the front and rear of the load top rod 17. The front and rear ends of the push plate 14 are slidably installed above the outer surface of the guide rods 15. The linear displacement sensor 18 is installed at the bottom inside the test host 1. The input end of the linear displacement sensor 18 is connected to the bottom of the push plate 14. The controller 19 is installed at the rear inside the test host 1. The communication module 20 and the battery 21 are installed at the front inside the test host 1.

[0019] During use, insert plate 4 into the elevator sill and place rail 2 on the ground. Push the test host 1 to make the adjusting slider 6 slide in the adjusting groove of rail 2. Fix the adjusting slider 6 with fixing bolt 7 to adapt to the force application distance requirements of different elevator models. Move the support arm 10 to rotate and open on the rotating seat 9. Drive the screw 11 to rotate and move downward through the knob, so that the support plate 12 contacts the ground, and transmits the lateral pressure on the test host 1 to the ground to support the test host 1. Start the electric push rod 13 to push the push plate 14 to make the load top rod 17 move 5cm below the vertical part of the foot guard plate. 2Static force is applied to the area, and the pressure value is accurately obtained through pressure sensor 16. The test host 1 is equipped with a displacement travel protection function. After triggering, the electric push rod 13 automatically returns to its original position. When the push plate 14 moves, it slides on the outer wall of the guide rod 15 to limit and guide it, increase the connection strength, and ensure the test accuracy. The linear displacement sensor 18 collects elastic deformation and permanent deformation data in real time. The controller 19 has a built-in GPS positioning module, OCR nameplate recognition module, and AI intelligent analysis unit to realize automatic recording of detection position, intelligent recognition of equipment information, and automated processing of the detection process. The controller 19 integrates motion control, data acquisition, and analysis algorithms for the electric push rod 13 to automatically determine whether it meets the national strength standard. The communication module 20 integrates a low-power Bluetooth BLE communication module, which supports wireless connection with Android terminal APP to realize detection parameter setting, real-time data transmission, and graphical report generation. The APP has a dynamic visualization function, which can generate force-displacement two-dimensional curves, support data scaling at any point, and Bluetooth printing of graphical reports containing QR codes. The battery 21 uses a rechargeable lithium battery and is equipped with a TYPE-C universal charging interface.

[0020] like Figures 1 to 5 As shown, this utility model discloses an elevator footboard strength testing device. During operation, the insert plate 4 is first inserted into the elevator sill, and the track 2 is placed on the ground. The testing host 1 is pushed to make the adjusting slider 6 slide within the adjusting groove of the track 2. The adjusting slider 6 is fixed by the fixing bolt 7. The support arm 10 is rotated and opened on the rotating seat 9. The screw 11 is rotated and moved downwards by the knob, causing the support plate 12 to contact the ground, transmitting the lateral pressure on the testing host 1 to the ground to support the testing host 1. The electric push rod 13 is activated to push the push plate 14, causing the load-bearing top rod 17 to move 5cm below the vertical part of the footboard. 2 A static force of 300N is applied to the area, and the pressure value is accurately obtained through the pressure sensor 16. The linear displacement sensor 18 collects deformation data in real time to determine whether the elastic deformation is ≤35mm. The detection data is synchronized to the terminal APP via Bluetooth to generate a compliance report.

[0021] The main functions achieved by this utility model are: integrating multi-source data processing functions, improving detection efficiency by 300% compared with traditional methods, reducing training costs by 80%, and using dynamic visualization curves and intelligent criterion algorithms to effectively prevent human error. The traceability of detection results meets the first-level standard for special equipment inspection.

[0022] The electric push rod 13 has a force range of 0-1000N, the pressure sensor 16 has a force measurement accuracy of ±1.5N, and the linear displacement sensor 18 has a measurement range of 0-50mm and an accuracy of ±0.5mm. The pressure sensor 16, linear displacement sensor 18, controller 19, communication module 20, and battery 21 of this utility model elevator footboard strength detection device are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0023] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A strength testing device for elevator foot guards, characterized in that, It includes a test host (1), a sliding block assembly, a force application assembly, and a control assembly. The test host (1) has a sliding block assembly installed at the bottom, a force application assembly installed inside the test host (1), and control components installed at the front and rear ends inside the test host (1).

2. The elevator footboard strength testing device as described in claim 1, characterized in that, The sliding block assembly includes two rails (2), a support rod (3), a plate (4), a connecting rod (5), two adjusting sliders (6), and two fixing bolts (7). The two rails (2) are located at the front and rear ends of the bottom of the test host (1). Foot pads (8) are provided at the left and right ends of the bottom of the rails (2). The support rod (3) is fixedly connected to the left end of the two rails (2). The plate (4) is installed on the left side wall of the support rod (3). The connecting rod (5) is connected to the right end of the rails (2). An adjusting groove is provided at the top of the rails (2). The adjusting slider (6) is slidably installed in the adjusting groove. The top of the adjusting slider (6) is connected to the middle of the bottom end of the test host (1). Multiple fixing holes are provided on the rails (2). The adjusting slider (6) is connected to the rails (2) through the fixing bolts (7) and the fixing holes.

3. The elevator footboard strength testing device as described in claim 1, characterized in that, It also includes two rotating seats (9), two support arms (10), two screws (11) and two support plates (12). The two support arms (10) are installed at the front and rear ends of the right side wall of the test host (1) via the rotating seats (9). The end of the support arm (10) away from the rotating seats (9) is screwed with a screw (11). A knob is provided on the top of the screw (11) and a support plate (12) is installed at the bottom of the screw (11). The front and rear ends of the right side wall of the test host (1) are provided with clearance grooves.

4. The elevator footboard strength testing device as described in claim 1, characterized in that, The force application components include an electric push rod (13), a push plate (14), a pressure sensor (16), and a load top rod (17). The electric push rod (13) is installed in the middle of the right side wall of the test host (1). The push plate (14) is installed at the telescopic end of the electric push rod (13). The load top rod (17) is installed in the middle of the left side wall of the push plate (14). The load top rod (17) is slidably installed on the left side wall of the test host (1). The pressure sensor (16) is installed between the load top rod (17) and the push plate (14).

5. The elevator footboard strength testing device as described in claim 4, characterized in that, It also includes two guide rods (15) and a linear displacement sensor (18). The guide rods (15) are symmetrically installed inside the test host (1) about the load top rod (17). The front and rear ends of the push plate (14) are slidably installed above the outer surface of the guide rods (15). The linear displacement sensor (18) is installed at the bottom inside the test host (1). The input end of the linear displacement sensor (18) is connected to the bottom of the push plate (14).

6. The elevator footboard strength testing device as described in claim 1, characterized in that, The control components include a controller (19), a communication module (20), and a battery (21). The controller (19) is installed inside the rear of the test host (1), and the communication module (20) and the battery (21) are installed inside the front of the test host (1).

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