Track operation vehicle screw looseness detection device based on magnetic switch technology

Abstract

The invention discloses a rail operation vehicle screw looseness detection device based on a magnetic switch technology, and particularly relates to the field of rail operation vehicle screw looseness detection.The rail operation vehicle screw looseness detection device comprises a device shell, a sensor is installed in the device shell, and a sensor detection probe is fixedly installed in the center of the bottom end of the sensor; and the screw is installed at the bottom end of the device shell, a magnet is pasted to one end of the screw, and the magnet is detected through the sensor detection probe. According to the invention, the loosened screws at the bottom of the vehicle can be rapidly and accurately detected, real-time monitoring of the screws at key positions is realized, and the safety of vehicle operation is improved. According to the screw / bolt looseness detection device for the rail operation vehicle, the real-time state of a screw / bolt is transmitted to monitoring personnel through a network through a reliable and effective detection device according to the special scene of the rail vehicle.

Description

Technical Field

[0001] The present invention relates to the field of screw loosening detection for rail working vehicles, and more particularly to a screw loosening detection device for rail working vehicles based on magnetic switch technology. Background Art

[0002] Currently, the primary method for checking for loose screws and bolts on rail vehicles is manual inspection, primarily involving tapping screws for listening, wrench-tightening inspections, and line marking. These methods are labor-intensive, inefficient, and lack specificity, leading to fatigue and misjudgment or missed inspections.

[0003] There are a large number of screws / bolts on rail operation vehicles, and their installation positions are different. The installation positions of many screws / bolts are difficult to observe, which increases the difficulty of inspection.

[0004] Manual inspection of screws / bolts in the main parts of rail operation vehicles is labor-intensive, inefficient, and lacks specificity. It is prone to mis-inspections and missed inspections, which in turn creates potential safety hazards.

[0005] The inspection environment for screws and bolts in important parts of rail vehicles is complex and confined, and existing inspection technologies are mostly wired, which are not suitable for the environment of rail vehicles. Summary of the Invention

[0006] To overcome the aforementioned shortcomings of the prior art, embodiments of the present invention provide a loose screw detection device for rail vehicles based on magnetic switch technology. This device can quickly and accurately detect loose screws on the vehicle's underbody, enabling real-time monitoring of screws in critical locations and improving vehicle safety. This loose screw / bolt detection device for rail vehicles addresses the unique needs of rail vehicles. Through a reliable and effective detection device, it transmits the real-time status of screws / bolts to monitoring personnel via a network.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for detecting screw loosening of a rail vehicle based on magnetic switch technology, comprising:

[0008] A device housing, wherein a sensor is installed inside the device housing, and a sensor detection probe is fixedly installed at the center of the bottom end of the sensor;

[0009] A screw is installed at the bottom end of the device housing. A magnet is attached to one end of the screw, and the magnet is detected by a sensor detection probe.

[0010] Furthermore, the status indicator light and the alarm output adjustment button are installed on the top of the sensor. The function of the status indicator light is to display the status when the sensor detection probe detects a magnet. The status indicator light is on when the sensor alarms. The function of the alarm output adjustment button is to adjust the detection mode of the sensor. Mode 1 is that the sensor sends an alarm signal when it detects a magnet; Mode 2 is that the sensor sends an alarm signal when it does not detect a magnet.

[0011] Furthermore, a device housing connection is installed at the bottom end of the interior of the device housing, and a nut is installed inside the device housing connection, and the specifications and sizes of the nut and the device housing connection correspond to each other. The screw is threadedly connected to the nut, and the nut connection part at the bottom end of the device housing is sleeved on the nut and is in precise contact with the nut. The fixing screw of the device housing connects the nut and the device housing through the housing fixing hole.

[0012] Furthermore, shell fixing holes are opened on both sides of the outer surface of the device shell, and the shell fixing holes are located on both sides of the inner wall connected to the device shell. Fixing screws are installed inside the shell fixing holes to fix the nuts through the fixing screws.

[0013] Furthermore, the outer surface of the sensor is provided with a sensor external screw, and the inner wall of the device shell is provided with a device shell internal thread. The sensor and the device shell are threadedly connected through the sensor external screw and the device shell internal thread. The sensor external screw is connected to the device shell internal thread to adjust the probe distance between the sensor and the magnet.

[0014] Furthermore, a connecting and fixing nut is installed at the top of the device shell, and the inner wall of the bottom end of the connecting and fixing nut is provided with a lower inner thread of the connecting and fixing nut, and the outer surface of the top end of the device shell is provided with an outer thread of the device shell, and the connecting and fixing nut and the device shell are threadedly connected through the outer thread of the device shell and the lower inner thread of the connecting and fixing nut, the lower inner thread of the connecting and fixing nut of the connecting and fixing nut is connected to the outer thread of the device shell of the fixing hole, and the external screw of the sensor is connected to the upper inner thread of the connecting and fixing nut.

[0015] Furthermore, the outer surface of the connecting and fixing nut is provided with anti-slip grooves of the connecting and fixing nut. The function of the anti-slip grooves of the connecting and fixing nut is to facilitate the use of force when fixing the sensor and the device housing and prevent the hand from slipping.

[0016] Furthermore, an inner wall of the connecting and fixing nut is provided with an inner thread on the connecting and fixing nut, and the top end of the sensor and the connecting and fixing nut are threadedly connected via an external screw of the sensor and the inner thread on the connecting and fixing nut.

[0017] Furthermore, the sensor 1 is internally provided with a detection module, a power module, and a wireless module. The power module provides power to the detection module and the wireless module. The detection module detects whether there is magnetic material within a certain distance. When it is detected, the state is "1", and when it is not detected, the state is "0". The detection module transmits this state change to the wireless module, and the wireless module sends the detection state of the sensor to the data receiving system.

[0018] The sensor has wireless transmission and automatic networking functions. It is a wireless data transmission network platform composed of multiple wireless data transmission modules. Within the entire network, each data transmission module can communicate with each other. As long as one sensor communicates with the controller, other sensors can transmit data to the controller.

[0019] Technical effects and advantages of the present invention:

[0020] Adding a screw loosening detection sensor is beneficial to improving work efficiency, reducing labor intensity, and avoiding accidents caused by loose screws.

[0021] The sensors utilize short-range wireless communication technology, ideal for the complex environments of rail vehicles, and provide stable data transmission signals. The upper-level software allows managers to monitor the status of loose screws in key areas of each vehicle, facilitating vehicle safety management.

[0022] It is beneficial to improve work efficiency, reduce labor intensity, and avoid accidents caused by loose screws.

[0023] The device can be recycled and is easy to install and disassemble.

[0024] The device is low-cost and can be used on a large scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall device structure diagram of the present invention.

[0026] Figure 2 This is an appearance diagram of the sensor of the present invention.

[0027] Figure 3 This is a structural diagram of the connecting and fixing nut of the present invention.

[0028] Figure 4 This is a structural diagram of the device housing of the present invention.

[0029] Figure 5 It is a cross-sectional view of the device of the present invention.

[0030] Figure 6 Schematic diagram of the sensor module of the present invention.

[0031] Figure 7 This is a diagram of the sensor detection system of the present invention.

[0032] The accompanying drawings are marked as follows: 1. sensor; 2. connecting and fixing nut; 3. device housing; 4. magnet; 5. status indicator light; 6. alarm output adjustment button; 7. sensor external screw; 8. upper inner thread of the connecting and fixing nut; 9. inner thread of the device housing; 10. outer thread of the device housing; 11. housing fixing hole; 12. lower inner thread of the connecting and fixing nut; 13. anti-slip groove of the connecting and fixing nut; 14. device housing connection; 15. sensor detection probe; 16. screw. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] according to Figure 1-7 The present invention provides a device for detecting screw loosening of a rail vehicle based on magnetic switch technology, comprising:

[0035] The screw loosening detection device is divided into four parts: sensor 1, connecting fixing nut 2, device housing 3, and magnet 4.

[0036] Figure 2 The sensor 1 includes: a status indicator light 5, an alarm output adjustment button 6, a sensor external screw 7, and a sensor detection probe 15.

[0037] The status indicator light 5 and the alarm output adjustment button 6 are located on the top of the sensor; the function of the status indicator light 5 is to display the status when the sensor detection probe 15 detects the magnet 4, and the status indicator light 5 is on when the sensor alarms.

[0038] The function of the alarm output adjustment button 6 is to adjust the detection mode of the sensor. Mode 1 is to send an alarm signal when the sensor detects a magnet; Mode 2 is to send an alarm signal when the sensor does not detect a magnet;

[0039] In mode 1, the sensor detection probe 15 detects the magnet 4, the sensor sends an alarm signal, and the status indicator light 5 turns on; when the sensor detection probe 15 does not detect the magnet 4, the sensor does not send an alarm signal, and the status indicator light 5 turns off.

[0040] In mode 2, the sensor detection probe 15 detects the magnet 4, the sensor does not send an alarm signal, and the status indicator light 5 is off; when the sensor detection probe 15 does not detect the magnet 4, the sensor sends an alarm signal, and the status indicator light 5 is on.

[0041] The external screw 7 of the sensor is connected to the internal thread 9 of the device housing to adjust the distance of the probe 15 between the sensor 1 and the magnet 4.

[0042] Figure 3 , the connecting and fixing nut 2 has an upper inner thread 8 of the connecting and fixing nut and a lower inner thread 12 of the connecting and fixing nut, the upper inner thread 8 of the connecting and fixing nut is connected to the external screw 7 of the sensor; the lower inner thread 12 of the connecting and fixing nut is connected to the external thread 10 of the device housing; the function of the anti-slip texture 13 of the connecting and fixing nut is to facilitate the use of force when fixing the sensor 1 and the device housing 3 to prevent slipping of the hands.

[0043] Figure 4 , device housing 3, device housing internal thread 9 is connected to sensor external screw 7, device housing external thread 10 is connected to the lower internal thread 12 of the fixing nut, and housing fixing hole 11 is located in the middle of the device housing and nut connection part 14. The screw is fixed to the device housing 3 and the nut through the housing fixing hole 11. The shape of the device housing and nut connection part 14 is consistent with the shape of the nut.

[0044] Figure 6 The device installation method is as follows: 1. Tighten the nut. 2. Adsorb or glue a magnet to the top of screw 16. 2. Slide the nut connection portion 14 at the bottom of the device housing 3 over the nut, making precise contact with the nut. The fixing screw of the device housing 3 connects the nut to the device housing 3 through the housing fixing hole 11. Align the sensor external screw 7 of sensor 1 with the device housing internal thread 9 of the device housing 3. Rotate clockwise, and move sensor 1 downward until the status indicator 5 illuminates. Rotate the connecting nut 2 on sensor 1 downward until it connects sensor 1 and device housing 3. Connect the lower internal thread 12 of the connecting nut 2 to the device housing external thread 10 in the fixing hole 11. Connect the sensor external screw 7 to the upper internal thread 8 of the connecting nut.

[0045] The sensor detects the process of screw loosening. The detection device is installed on the nut. The distance between the sensor and the magnet changes with the forward and reverse rotation of the nut. When the sensor can detect the magnet, it is considered that the screw is not loose. When the sensor does not detect the magnet, it is considered that the screw is loose.

[0046] The sensor 1's external screw 7 is aligned with the device housing's internal screw 9 of the device housing 3. Rotating it clockwise causes the sensor 1 to move downward. When the magnet 4 enters the sensor's detection range, the status indicator 5 illuminates, and the fixing nut 2 is tightened. If the screw becomes loose, the nut rotates counterclockwise, driving the detection device to rotate counterclockwise. If the sensor moves outside the detection range, it is considered loose and the sensor issues an alarm signal.

[0047] The sensor consists of a detection module, a power module, and a wireless module. The power module provides power to both the detection and wireless modules. The detection module detects the presence of magnetic material within a certain distance. If detected, the status is "1"; if not, the status is "0." The detection module transmits this status change to the wireless module, which then sends the sensor's detection status to the data receiving system.

[0048] The sensor has wireless transmission and automatic networking functions. It is a wireless data transmission network platform composed of multiple wireless data transmission modules. Within the entire network, each data transmission module can communicate with each other. As long as one sensor communicates with the controller, other sensors can transmit data to the controller.

[0049] Working principle of the present invention:

[0050] Refer to the instruction manual Figure 1-7 The sensor detection part uses a Hall switch. A Hall element is a magnetic sensitive element. When a metal or semiconductor sheet with current flowing through it is placed vertically in a magnetic field, a potential difference is generated at both ends of the sheet. This phenomenon is called the Hall effect.

[0051] When a magnetic object approaches a Hall effect switch, the Hall effect element on the switch's detection surface causes the switch's internal circuit state to change, thereby detecting the presence of a magnetic object and controlling the switch's on or off state. This type of proximity switch must detect magnetic objects.

[0052] Exploiting this characteristic of a Hall effect switch, a magnet and Hall effect switch are mounted on a screw. Tightening or loosening the screw changes the distance between the magnet and the Hall effect switch. The Hall effect switch changes state when it detects and when it doesn't. This change in state allows the user to determine whether the screw is loose.

Claims

1. A screw loosening detection device for a rail vehicle based on magnetic switch technology, characterized in that: include: A device housing (3), wherein a sensor (1) is installed inside the device housing (3), and a sensor detection probe (15) is fixedly installed at the center of the bottom end of the sensor (1); A screw (16) is installed at the bottom end of the device housing (3), and a magnet (4) is attached to one end of the screw (16). The magnet (4) is detected by a sensor detection probe (15).

2. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 1, characterized in that: The status indicator light (5) and the alarm output adjustment button (6) are installed on the top of the sensor (1).

3. The device for detecting screw loosening of a rail vehicle based on magnetic switch technology according to claim 1, characterized in that: The bottom end of the device housing (3) is provided with a device housing connection (14), and a nut is installed inside the device housing connection (14), and the size of the nut corresponds to that of the device housing connection (14), and the screw (16) is threadedly connected to the nut.

4. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 3, characterized in that: Shell fixing holes (11) are provided on both sides of the outer surface of the device shell (3), and the shell fixing holes (11) are located on both sides of the inner wall of the device shell connection (14). Fixing screws are installed inside the shell fixing holes (11), and the nuts are fixed by the fixing screws.

5. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 1, characterized in that: The outer surface of the sensor (1) is provided with a sensor external screw (7), the inner wall of the device housing (3) is provided with a device housing internal thread (9), and the sensor (1) and the device housing (3) are threadedly connected via the sensor external screw (7) and the device housing internal thread (9).

6. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 5, characterized in that: A connecting and fixing nut (2) is installed at the top end of the device housing (3), a connecting and fixing nut lower inner thread (12) is provided on the inner wall of the bottom end of the connecting and fixing nut (2), a device housing outer thread (10) is provided on the outer surface of the top end of the device housing (3), and the connecting and fixing nut (2) and the device housing (3) are threadedly connected via the device housing outer thread (10) and the connecting and fixing nut lower inner thread (12).

7. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 6, characterized in that: The outer surface of the connecting and fixing nut (2) is provided with connecting and fixing nut anti-slip lines (13).

8. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 7, characterized in that: The inner wall of the connecting and fixing nut (2) is provided with an inner thread (8) on the connecting and fixing nut, and the top end of the sensor (1) is threadedly connected to the connecting and fixing nut (2) via an external screw (7) of the sensor and the inner thread (8) on the connecting and fixing nut.

9. The device for detecting screw loosening on a rail vehicle based on magnetic switch technology according to claim 1, characterized in that: The sensor (1) is internally provided with a detection module, a power module, and a wireless module, and the power module provides power to the detection module and the wireless module.

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