An acousto-optic alarm device for a rail grinder

Abstract

The utility model relates to railway maintenance equipment technical field discloses a kind of sound-light alarm device of rail grinding car, including magnetic suction base and main part;The main part includes alarm loudspeaker, alarm lamp group and power supply battery, and the power supply battery is respectively electrically connected with alarm loudspeaker, alarm lamp group;The magnetic suction base at least includes two layers stacked disc structure, the first layer of disc structure is strong magnet layer, second layer is rotating plate layer: one strong magnet unit is set on the strong magnet layer every certain angle along circumferential direction;One magnetic leakage zone is set on the rotating plate layer along circumferential direction with the same angle apart from strong magnet layer, and the rotating plate layer with the strong magnet layer can be relatively coaxial rotation and realize magnetic and break magnetic.The utility model realizes the mechanical control of magnetic circuit on-off by layered design, and strong magnet layer provides fixed magnetic source, and rotating plate layer switches magnetic isolation / magnetic state by relative rotation, to avoid the energy consumption and complex circuit problem of traditional electromagnetic coil control.

Description

Technical Field

[0001] This utility model relates to the field of railway maintenance equipment technology, and in particular to an audible and visual alarm device for a rail grinding vehicle. Background Technology

[0002] In the field of railway maintenance, rail grinding machines play a crucial role as key maintenance equipment. However, their daily operation and maintenance face a series of safety issues. Because rail grinding machines generate significant noise during operation, when a train approaches from an adjacent track and the safety officer notifies the workers to dodge, the workers often cannot hear or see the notification clearly, making it impossible to dodge in time. This poses a serious threat to the personal safety of the workers.

[0003] Currently, traditional audible and visual alarms have many shortcomings. In terms of installation and fixing, the methods are relatively complex, usually requiring drilling or welding, which not only damages the structural integrity of the vehicle but also relies on the vehicle's power supply system, leading to complex wiring and potential safety hazards. Regarding protection performance, the protection level is insufficient, making it difficult to adapt to the harsh environmental conditions of railway operations. In terms of remote control operation, the short distance forces safety personnel to operate the alarms close to dangerous areas. These shortcomings seriously affect the practical application effectiveness of traditional audible and visual alarms in railway maintenance operations.

[0004] To address the complex installation and fixing methods of traditional audible and visual alarms, while the installation structure between the alarm and the grinding trolley can utilize existing magnetic brackets and electromagnets to avoid the drawbacks of drilling or welding, these methods still have shortcomings. If only simple magnetic adsorption is used, the alarm is prone to detaching from the grinding trolley when the magnetic force is weak, exhibiting poor shock resistance and stability, making it unsuitable for the complex working environment of railcars. Increasing the number of magnets to increase the attractive force increases the equipment's weight, making it difficult for technicians to operate during removal or relocation, and potentially damaging the alarm. While electromagnet adsorption offers adjustable magnetic force and facilitates removal after power failure, the alarm typically requires a power source to function. Internal power supply increases costs and necessitates frequent power supply replacements or charging, hindering long-term operation. External power supply introduces wiring problems, and in complex operating environments, accidental wire disconnection can lead to complete equipment failure. It is evident that electromagnetic adsorption is highly dependent on power supply; it loses its magnetism when power is cut off, making it unusable in environments without power, thus limiting its application scenarios. Utility Model Content

[0005] To address existing problems, this utility model provides an audible and visual alarm device for a rail grinding vehicle. It aims to achieve mechanical control of magnetic circuit switching through a layered design. The strong magnet layer provides a fixed magnetic source, and the rotating plate layer switches between magnetic isolation and magnetic flux states through relative rotation. This avoids the energy consumption and complex circuit problems of traditional electromagnetic coil control, improves the reliability of the device in environments without power, and simplifies structural costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution.

[0007] A sound and light alarm device for a rail grinding vehicle includes a magnetic base and a main body. The main body includes an alarm speaker, an alarm light assembly, and a power supply battery, which is electrically connected to the alarm speaker and the alarm light assembly. The magnetic base includes at least two stacked disc structures. The first layer of the disc structure is a strong magnet layer, and the second layer is a rotating plate layer. A strong magnet unit is arranged at regular angles along the circumference of the strong magnet layer. A magnetic leakage zone is arranged along the circumference of the rotating plate layer at the same angle as that of the strong magnet layer. The rotating plate layer and the strong magnet layer can rotate coaxially relative to each other to achieve magnetic flux transfer and demagnetization.

[0008] As a further improvement of this utility model, the first layer of the disc structure is fixedly connected to the main body.

[0009] As a further improvement of this utility model, the magnetic base also includes a base shell fixedly connected to the main body. The base shell is cylindrical, and a magnetic leakage area is provided at the top or bottom of the base shell along the circumferential direction at the same angle as the strong magnet layer. The disc structure is disposed in the base shell, and the strong magnet layer is disposed on the side close to the main body.

[0010] As a further improvement of this utility model, the disc structure also includes a screw, and the first and second layers of the disc structure are provided with threaded holes at the center position to connect with the screw.

[0011] As a further improvement of this utility model, a magnetic unlocking handle is provided on the outer periphery of the rotating plate.

[0012] As a further improvement of this utility model, a strong magnet unit is provided every 120° along the circumferential direction on the strong magnet layer.

[0013] As a further improvement of this utility model, a central magnet unit is also provided at the central axis of the strong magnet layer.

[0014] As a further improvement of this utility model, the strong magnet unit is ring-shaped.

[0015] As a further improvement of this utility model, the alarm speaker is a high-decibel speaker with an output decibel of up to 120dB.

[0016] As a further improvement of this utility model, the alarm light group adopts an LED lamp bead array to generate high-intensity, high-penetration flashing light.

[0017] This utility model has the following beneficial effects: The mechanical control of magnetic circuit switching is achieved through a layered design. The strong magnet layer provides a fixed magnetic source, while the rotating plate layer switches between magnetic isolation and magnetic flux states through relative rotation. This avoids the energy consumption and complex circuit problems of traditional electromagnetic coil control, improves the reliability of the device in power-free environments, and simplifies structural costs.

[0018] Preferably, the fixed connection ensures the rigid synchronization of the main body and the magnetic base, preventing magnetic circuit misalignment due to vibration or impact. Especially under high-speed or bumpy conditions of the rail grinding vehicle, it maintains the spatial stability of the alarm device and the magnetic structure, ensuring the continuous effectiveness of magnetic adsorption and audible and visual alarm functions.

[0019] Preferably, the magnetic field lines are directionally released by matching the angle of the magnetic leakage area at the top / bottom of the shell with the strong magnet layer, so as to avoid insufficient adsorption force or mis-adsorption caused by magnetic dispersion; the cylindrical shell protects the internal disc structure from dust and moisture corrosion, extending its service life; the design of the angle corresponding between the magnetic leakage area and the strong magnet layer simplifies the assembly accuracy requirements and reduces manufacturing costs.

[0020] Preferably, the screw connects the two layers of disks through a central threaded hole to ensure the coaxiality of the rotating plate layer and the strong magnet layer, eliminating magnetic fluctuations or mechanical jamming caused by eccentric rotation; the screw structure allows the spacing between the two layers to be adjusted by rotating the handle, compensating for manufacturing errors or wear after long-term use, and maintaining the accuracy of magnetic circuit continuity.

[0021] Preferably, the handle is located on the outer periphery, which conforms to the mechanical habits of operators rotating with one hand, reduces the torque required for unlocking, and improves the response speed in emergency situations.

[0022] Preferably, the 120° interval ensures that the three strong magnetic units are evenly distributed on the circumference, avoiding uneven adsorption or structural deformation caused by excessive local magnetic force. The equiangular distribution matches the 60° rotation of the rotating plate, enabling two-position magnetic circuit switching (fully on, fully off), reducing operational complexity.

[0023] Preferably, the central magnet provides basic adsorption force to ensure the minimum holding force when the rotating plates are not fully aligned, preventing accidental detachment; it forms a "center + periphery" dual magnetic circuit with the peripheral magnets, improving adsorption reliability under harsh working conditions (such as strong vibration and high temperature).

[0024] Preferably, the circular structure ensures that the magnetic lines of force are evenly distributed along the circumference, thereby avoiding excessive local attraction caused by the dense magnetic lines of force at the edges of the block magnet and reducing the risk of magnetic damage to the rail surface. Compared with solid magnets, the circular design reduces the amount of material used while maintaining magnetic force, lowers the overall weight of the device, and facilitates installation and maintenance.

[0025] Preferably, the 120dB volume can penetrate the high-decibel background noise (such as the friction sound of the grinding wheel and the rail) during the operation of the rail grinding vehicle, ensuring that personnel within a 50-meter range can clearly receive the alarm signal; it meets the intensity requirements of the sound and light alarm in the railway operation scenario, so as to avoid potential accidents caused by insufficient volume.

[0026] Preferably, the LED array provides brightness far exceeding that of traditional light bulbs, and high-frequency flashing is achieved through the array driving circuit, enhancing the light's penetration and visual warning effect, especially at night or in low-visibility environments. Attached Figure Description

[0027] The accompanying drawings described herein are for illustrative purposes only and do not limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings: Figure 1 This is an overall diagram of the audible and visual alarm device for a rail grinding vehicle as described in Example 1; Figure 2 This is a schematic diagram of the magnetic base of the audible and visual alarm device for a rail grinding vehicle as described in Example 2; Figure 3 This is a schematic diagram of the magnetic base of the audible and visual alarm device for a rail grinding vehicle as described in Example 3; Figure 4 This is a schematic diagram showing the demagnetization state of the strong magnet layer and the rotating plate layer of the audible and visual alarm device for a rail grinding vehicle as described in Example 3. Figure 5 This is a schematic diagram of the central magnet unit of the strong magnet layer of the audible and visual alarm device for a rail grinding vehicle as described in Example 4. The components include: 1. Alarm speaker; 2. Alarm light assembly; 3. Strong magnet layer; 4. Strong magnet unit; 5. Central magnet unit; 6. Rotating plate layer; 7. Magnetic leakage area; 8. Base shell; 9. Magnetic isolation area; 10. Screw; 11. Magnetic unlocking handle. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0029] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0030] Unless otherwise defined below, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] Example 1 like Figure 1 As shown, a sound and light alarm device for a rail grinding vehicle includes a magnetic base and a main body. The main body includes an alarm speaker 1, an alarm light group 2, and a power supply battery, which is electrically connected to the alarm speaker 1 and the alarm light group 2 respectively. The magnetic base includes at least two stacked disc structures. The first layer of the disc structure is a strong magnet layer 3, and the second layer is a rotating plate layer 6. A strong magnet unit 4 is arranged at certain angles along the circumference of the strong magnet layer 3. A magnetic leakage area 7 is arranged at equal angles to the strong magnet layer 3 along the circumference of the rotating plate layer 6. The rotating plate layer 6 and the strong magnet layer 3 can rotate coaxially relative to each other to achieve magnetic connection and demagnetization.

[0032] The magnetic leakage zone 7 is separated from the magnetic isolation zone 9, which is made of magnetic isolation material.

[0033] The first strong magnet layer 3 of the disk structure is fixedly connected to the main body.

[0034] The magnetic base also includes a base housing fixedly connected to the main body. The base housing is cylindrical, and a magnetic leakage area 7 is provided at equal angles along the circumference of the top or bottom of the base housing, corresponding to the strong magnet layer 3. The disc structure is disposed in the base housing, and the strong magnet layer 3 is disposed on the side close to the main body.

[0035] A magnetic unlocking handle 11 is provided on the outer periphery of the rotating plate layer 6.

[0036] A strong magnet unit is set every 120° along the circumference of the strong magnet layer 3.

[0037] The base housing 8 is connected to the main body via an adjustable universal joint mechanism. This mechanism allows the alarm device body to rotate 360° vertically and horizontally, and to adjust its pitch within a certain angle range. This allows for flexible adjustment of the alarm device's orientation according to different work site environments and needs, ensuring that the audible and visual alarm signals can cover hazardous areas to the greatest extent and be effectively transmitted to relevant personnel. The base housing 8 is made of high-quality cold-rolled steel, possessing excellent strength and toughness, effectively resisting external impacts and collisions, and protecting the internal electronic components from damage. The surface of the cold-rolled steel undergoes a special anti-corrosion treatment process, exhibiting excellent corrosion resistance and weather resistance, enabling it to adapt to various complex climatic conditions along railway lines, such as humidity, salt spray, and acid rain, ensuring the alarm device maintains stable and reliable performance during long-term use.

[0038] The alarm device has a waterproof and dustproof rating of IP65. The joints between the eight components of its base housing are designed with high precision and are sealed with high-quality rubber sealing rings and sealant. This effectively prevents rainwater, dust and other foreign objects from entering the device, ensuring the normal operation of electronic components. It is especially suitable for use in outdoor working environments and harsh weather conditions, improving the reliability and service life of the equipment.

[0039] The alarm device features a built-in high-capacity, high-performance rechargeable lithium battery. This battery utilizes advanced lithium-ion battery technology, offering advantages such as high energy density, low self-discharge rate, and long cycle life. The battery capacity has been precisely calculated and optimized, enabling the audible and visual alarm device to operate continuously for over 12 hours at high power, meeting the needs of long-term operation of the rail grinding vehicle without frequent charging, effectively improving the equipment's endurance. Alternatively, a solar-powered auxiliary charging panel (optional) can be equipped to further extend its range during field operations.

[0040] The alarm speaker 1 is a high-decibel speaker with an output decibel of up to 120dB.

[0041] The alarm device is equipped with a high-decibel speaker, with an output volume of up to 120dB, ensuring that personnel within a 300-meter range can clearly hear the alarm. The speaker has multiple preset alarm sound effects and supports voice customization. Users can record specific voice prompts into the alarm device's storage chip using dedicated software, such as "Rail grinding work ahead, please be careful" or "Danger area, do not approach." Users can flexibly select or switch alarm voice content according to different work scenarios and needs, achieving personalized and precise voice warnings.

[0042] The alarm light group 2 uses an LED light bead array to generate high-intensity, high-penetration flashing light.

[0043] The LED light assembly uses high-brightness, high-penetration LED beads arranged in a specific array to produce strong and uniform flashing light. The visible distance can reach over 800 meters, ensuring effective signal transmission even during the day or in adverse weather conditions. The LED light assembly features multiple flashing modes, such as fast flash, slow flash, and strobe, which can be remotely switched via remote control to adapt to different warning needs and urgency levels, enhancing the warning effect. Simultaneously, the alarm device's lighting control system employs advanced optical lens and reflector design technology to optimize the focusing and reflection of the LED light, improving brightness and penetration, and further extending the visible distance.

[0044] Optionally, the alarm speaker 1 and alarm light group 2 can also be equipped with a remote control. The remote control uses advanced wireless communication technology to connect with the audible and visual alarm device, with a maximum communication distance of up to 2000 meters, meeting the needs of protection personnel to control the alarm device from a distance. The remote control is equipped with a large-size LCD screen that can display the real-time operating status information of the alarm device, such as battery level, alarm mode, and signal strength. The remote control surface has multiple function buttons, allowing operators to remotely start, stop, switch alarm modes, adjust volume, and adjust light flashing modes of the audible and visual alarm device through simple and intuitive button operation. This ease of operation effectively improves the efficiency of safety management at the work site.

[0045] Example 2 The difference between this embodiment and Embodiment 1 is that: 1) The disc structure also includes a screw 10, and the first and second layers of the disc structure are provided with threaded holes at the center position to connect with the screw 10.

[0046] Specifically, such as Figure 2As shown, since the movement of the rotating plate involves not only rotational motion but also axial displacement along the screw 10, when configuring the positions of the strong magnet unit 4 and the rotating plate, it is also necessary to reasonably consider the relationship between the thickness dimensions of the two, the screw pitch of the screw 10, the rotation angle of the strong magnet unit 4, and the distribution position of the strong magnet unit 4 on the rotating plate. For example, when three strong magnet units 4 are distributed on the rotating plate and three magnetic isolation zones 9 are set on the magnetic base plate, the included angle between adjacent strong magnet units 4 and adjacent magnetic isolation zones 9 is 120 degrees. When the strong magnet unit 4 is located between two magnetic isolation zones 9, it can contact the attracted car body by rotating 60 degrees. When the screw pitch of the screw 10 is 6mm, the rotating plate rotates 60 degrees and moves 1mm on the screw 10. The thickness of the rotating plate is 5mm and the thickness of the strong magnet layer 3 is 5mm. When the strong magnet unit 4 is located between two magnetic isolation zones 9, the height difference between the strong magnet layer 3 and the rotating plate does not exceed 1mm. That is, in the axial direction of the screw 10, the strong magnet unit 4 located between the two magnetic isolation zones 9 is closer to the grinding car (protruding position). When rotating to the magnetic isolation zone 9 (retracted position), the height difference between the protruding position and the retracted position does not exceed 1mm. If it exceeds 1mm, the two will interfere.

[0047] The base housing 8 is equipped with a convenient magnetic unlocking handle 11 on its edge. Operators can easily release the magnetic attraction and quickly disassemble the alarm device by simply rotating it, without the need for any tools. This greatly improves the efficiency of installation and disassembly, and the whole process will not cause any damage to the main structure of the vehicle.

[0048] Example 3 The difference between this embodiment and Embodiment 1 is that: 1) An adjusting nut is also provided between the strong magnet layer 3 and the rotating plate layer 6.

[0049] 2) The magnetic base has a special anti-slip texture on its surface.

[0050] like Figure 3 As shown, the adjusting nut is equipped with a convenient magnetic unlocking handle 11. Operators can easily release the magnetic force and quickly disassemble the alarm device with a simple rotation, without the need for any tools. This greatly improves the efficiency of installation and disassembly, and the entire process does not cause any damage to the vehicle's main structure. Figure 4 As shown, the strong magnet unit 4 and the lower magnetic leakage area 7 (the strong magnet layer 3 is only visible at the location of the magnetic leakage area 7) are arranged in a staggered manner. In this state, the strong magnet unit 4 cannot achieve unobstructed magnetic adsorption with the magnet it attracts.

[0051] The anti-slip texture increases friction with the vehicle surface, preventing the alarm device from slipping off due to vehicle vibration or movement.

[0052] Example 4 1) A central magnet unit 5 is provided at the central axis of the strong magnet layer 3.

[0053] like Figure 5 As shown, a central magnet unit 5 is also provided at the central axis of the strong magnet layer 3. The strong magnet unit 4 is ring-shaped. The central magnet unit 5, together with the strong magnet unit 4, adopts a composite layout of "central main magnet + peripheral auxiliary magnets", and the maximum adsorption force can reach 200kg, ensuring that it will not fall off when the vehicle is traveling at high speed.

[0054] Advantages of this utility model: 1. An innovative combination of a super-strong magnetic base and an adjustable universal connection mechanism. Existing audible and visual alarm devices mostly use fixed installation methods, which are complex to install and dismantle and can damage vehicles. This invention, however, uses a super-strong magnetic base, enabling quick and non-destructive installation and dismantling. It also features an adjustable universal connection mechanism, allowing for flexible adjustment of the alarm device's orientation according to the site environment—a feature unprecedented in existing technology. This significantly improves the device's versatility and adaptability, facilitating rapid deployment and use of the audible and visual alarm device in different locations and operating scenarios.

[0055] 2. Built-in high-performance rechargeable lithium battery and intelligent charging management system Compared to traditional alarm devices that rely on vehicle power, this invention features a built-in high-performance rechargeable lithium battery with an extended battery life, eliminating the need to disrupt the vehicle's power supply and avoiding the hassle of secondary wiring and potential impact on the vehicle's electrical system. Furthermore, the application of an intelligent charging management system ensures safe charging and extended battery life, demonstrating significant innovation and practicality advantages over existing power supply technologies for audible and visual alarm devices. This better meets the continuous power supply needs of rail grinding vehicles operating in the field for extended periods.

[0056] 3. Integrated design of high-decibel customizable voice function and high-penetration, long-distance visible LED lighting. Existing audible and visual alarm devices have relatively fixed voice content and light performance, and short visibility distances. The audible and visual alarm device of this invention not only outputs up to 120dB, but also supports customized voice, providing accurate voice warning information according to specific work scenarios and needs. At the same time, the LED lights adopt an optimized design, with a long visibility distance and strong penetration, effectively transmitting warning signals even in harsh environmental conditions. This integrated design of high-decibel customizable voice and high-performance LED lights is uniquely innovative in the field of audible and visual alarm devices, significantly improving the safety warning effect during rail grinding vehicle operations and providing more reliable safety protection for operators and surrounding personnel.

[0057] The above embodiments are merely one of the implementation methods for achieving the technical solution of this utility model. The scope of protection claimed by this utility model is not limited to this embodiment, but also includes any variations, substitutions, and other implementation methods that are easily conceived by those skilled in the art within the scope of the technology disclosed in this utility model. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An audible and visual alarm device for a rail grinding vehicle, characterized in that, The device includes a magnetic base and a main body. The main body includes an alarm speaker (1), an alarm light group (2), and a power supply battery. The power supply battery is electrically connected to the alarm speaker (1) and the alarm light group (2), respectively. The magnetic base includes at least two stacked disc structures. The first layer of the disc structure is a strong magnet layer (3), and the second layer is a rotating plate layer (6). A strong magnet unit (4) is set at certain angles along the circumferential direction on the strong magnet layer (3). A magnetic leakage area (7) is set at equal angles along the circumferential direction from the strong magnet layer (3). The rotating plate layer (6) and the strong magnet layer (3) can rotate coaxially relative to each other to achieve magnetic flux transfer and magnetic demagnetization.

2. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, The first layer of the disc structure is fixedly connected to the main body.

3. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, The magnetic base also includes a base housing that is fixedly connected to the main body. The base housing is cylindrical. A magnetic leakage area (7) is provided at the top or bottom of the base housing along the circumferential direction at equal angles to the strong magnet layer (3). The disk structure is disposed in the base housing, and the strong magnet layer (3) is disposed on the side close to the main body.

4. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, The disc structure also includes a screw (10), and the first and second layers of the disc structure are provided with threaded holes at the center position to connect with the screw (10).

5. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, A magnetic unlocking handle (11) is provided on the outer periphery of the rotating plate (6).

6. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, A strong magnet unit (4) is provided every 120° along the circumferential direction on the strong magnet layer (3).

7. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, A central magnet unit (5) is also provided at the central axis of the strong magnet layer (3).

8. The audible and visual alarm device for a rail grinding vehicle according to claim 7, characterized in that, The strong magnet unit (4) is ring-shaped.

9. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, The alarm speaker (1) is a high-decibel speaker with an output decibel of up to 120dB.

10. The audible and visual alarm device for a rail grinding vehicle according to claim 1, characterized in that, The alarm light group (2) uses an LED light bead array to generate high-intensity, high-penetration flashing light.

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