Smoke alarm device for railway locomotive

Abstract

The utility model discloses a railway locomotive smog alarm device relates to alarm device technical field, including smog alarm ware body, and its periphery side face rotationally arranged has the swivel, the guide plate is fixed in the periphery side face of swivel, the slide plate is through the sliding and is arranged outside the guide plate outer table, and the side of slide plate is fixed with a plurality of brush to smog alarm ware body, the circular ring is fixed at smog alarm ware body bottom, and the periphery side face of circular ring is set up with the corrugated guide slot, the guide shaft is fixed on the slide plate, and the guide shaft is embedded in the inside of corrugated guide slot. The utility model discloses through the cooperation design of swivel, guide plate, slide plate, brush, circular ring, corrugated guide slot and guide shaft, drives slide plate and brush to do reciprocating plug -in movement, realizes the automatic, real -time cleaning of smog alarm ware body through -hole, effectively avoids dust, oil dirt and other impurities and blocks through -hole, guarantees the detection sensitivity of smog alarm ware.

Description

Technical Field

[0001] This utility model relates to the field of alarm device technology, specifically a smoke alarm device for railway locomotives. Background Technology

[0002] Smoke alarm devices are an indispensable component of railway locomotive safety systems. Their main function is to monitor the smoke concentration inside the locomotive in real time and issue timely alarms when abnormalities are detected, thereby effectively preventing fires and ensuring safe operation. The operating environment of railway locomotives is complex, often accompanied by vibration, dust, and changes in temperature and humidity, which places high demands on the stability and reliability of the alarm devices. Modern smoke alarm devices typically rely on optical or ionization principles for detection, and incorporate an internal sensing chamber and through-hole structure to allow for airflow and smoke particle collection, ensuring sensitivity and accuracy in detection.

[0003] Currently, due to the confined space and high dust content inside locomotives, the through-holes of alarms are prone to blockage by the accumulation of dust, oil, and other impurities, leading to decreased detection sensitivity and even false alarms or missed alarms. Conventional cleaning methods mostly rely on manual disassembly and cleaning at regular intervals, which is not only cumbersome and costly to maintain, but may also affect the sealing and lifespan of the device due to improper disassembly and installation. During continuous locomotive operation, it is difficult to carry out effective cleaning in a timely manner, making it impossible to resolve the through-hole blockage problem in real time, thus posing a potential threat to the safe operation of the locomotive. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a smoke alarm device for railway locomotives.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A smoke alarm device for railway locomotives, comprising

[0007] The smoke detector body has a rotating ring on its circumferential side.

[0008] Guide plate, fixed to the circumferential side of the rotating ring;

[0009] A sliding plate is slidably disposed on the outer surface of the guide plate, and several brushes are fixed on the side of the sliding plate facing the smoke alarm body;

[0010] A circular ring is fixed to the bottom surface of the smoke detector body, and a wavy guide groove is provided on the circumferential side of the circular ring.

[0011] A guide shaft is fixed on the slide plate, and the guide shaft is embedded inside a wave-shaped guide groove;

[0012] The guide shaft drives the slide plate to produce alternating undulations, during which the brushes are inserted into the through holes on the smoke detector body in sequence.

[0013] Preferably, the smoke alarm body includes a cylindrical upper section and a conical lower section, wherein the diameter of the lower section gradually decreases from the upper section downwards, the ring is configured as a conical ring plate, and its diameter gradually increases from the lower section downwards, and the conical surface of the lower section of the smoke alarm body is perpendicular to the conical surface of the ring.

[0014] Preferably, the through hole on the smoke alarm body is opened on the conical surface of the lower section, and the through hole is opened perpendicular to the conical surface, forming an oblique through hole extending obliquely downward from the inside of the lower section. The axial direction of the brush is parallel to the axial direction of the through hole, forming an oblique brush body extending obliquely upward from the slide plate.

[0015] Preferably, the wavy guide groove includes multiple spaced inclined grooves, and an L-shaped groove is provided between two adjacent inclined grooves. The vertical section of the L-shaped groove is perpendicular to the conical surface of the lower section.

[0016] Preferably, it also includes an elastic element, which is a spring, sleeved on the outer periphery of the guide plate and connected to a rotating ring and a sliding plate at both ends respectively. The spring is used to drive the guide shaft to slide quickly when the guide shaft reaches the connection point between the top of the inclined groove and the L-shaped groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model, through the coordinated design of a rotating ring, guide plate, sliding plate, brush, circular ring, wavy guide groove and guide shaft, drives the sliding plate and brush to perform reciprocating insertion and removal motion, realizing automatic and real-time cleaning of the through hole of the smoke alarm body, effectively avoiding dust, oil and other impurities from clogging the through hole, ensuring the detection sensitivity of the smoke alarm, reducing the occurrence of false alarms and missed alarms, and providing reliable protection for the safe operation of railway locomotives.

[0019] 2. This utility model adopts an adaptive design of oblique through holes and oblique brushes, combined with a multi-segment oblique groove and L-shaped groove structure of wave-shaped guide groove, to ensure that the brush can accurately and comprehensively conform to the inner wall of the through hole for cleaning, resulting in a thorough cleaning effect. At the same time, the spring setting not only improves the continuity and efficiency of the cleaning action, but also buffers the impact of locomotive vibration on the device, enhancing the stability and reliability of the device in complex operating environments. It eliminates the need for regular manual disassembly and cleaning, reducing maintenance costs and avoiding the impact of improper disassembly and installation on the device's sealing performance and service life. Attached Figure Description

[0020] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 This is a schematic diagram of the structure of a smoke alarm device for railway locomotives according to the present invention;

[0022] Figure 2 For the present utility model Figure 1 Enlarged view of region A;

[0023] Figure 3 For the present utility model Figure 1 Partial cross-sectional view.

[0024] The diagram shows the following labels: 1. Smoke detector body; 2. Rotary ring; 3. Guide plate; 4. Slide plate; 5. Brush; 6. Circular ring; 7. Wavy guide groove; 8. Guide shaft; 9. Inclined groove; 10. L-shaped groove; 11. Spring. Detailed Implementation

[0025] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0026] Example

[0027] like Figure 1-3 As shown, a smoke alarm device for railway locomotives includes a smoke alarm body 1, which includes a cylindrical upper section and a conical lower section. The upper section is equipped with a smoke detection module, a signal processing module and an alarm module based on optical or ionization principles. The lower section is an induction chamber connected to the detection module. Air circulation between the induction chamber and the external environment is achieved through through holes on the conical surface of the lower section, ensuring that smoke particles can enter the induction chamber and be captured by the detection module, thereby achieving real-time monitoring of smoke concentration.

[0028] A rotating ring 2 is rotatably mounted on the side of the smoke alarm body 1. The rotating ring 2 is rotatably connected to the upper circumferential side of the smoke alarm body 1 through a bearing. The bearing ensures that the rotating ring 2 can rotate flexibly without axial displacement. The outer diameter of the rotating ring 2 is slightly larger than the outer diameter of the upper section of the smoke alarm body 1, providing sufficient installation space for fixing the guide plate 3. At the same time, the height of the rotating ring 2 is adapted to the installation position of the guide plate 3, ensuring that the guide plate 3 can stably drive the slide plate 4 to move.

[0029] The ring 6 is fixed to the bottom surface of the smoke alarm body 1. The ring 6 is connected to the bottom surface of the smoke alarm body 1 by bolt fixing. The connection position must be sealed to prevent dust or moisture from entering the device from the connection gap and affecting the operation of electronic components.

[0030] The ring 6 is set as a conical ring plate, and its diameter gradually increases from the bottom section downwards, while the diameter of the bottom section gradually decreases from the top section downwards. The conical surface of the lower section of the smoke alarm body 1 is perpendicular to the conical surface of the ring 6. The structural design of the conical ring plate allows its peripheral surface to form a perpendicular spatial relationship with the conical surface of the lower section of the smoke alarm body 1, providing a reasonable angular basis for the opening of the wave-shaped guide groove 7, ensuring that the movement of the guide shaft 8 in the guide groove can be accurately converted into the cleaning action of the brush 5 on the through hole;

[0031] The through holes on the smoke alarm body 1 are opened on the conical surface of the lower section, and the through holes are opened perpendicular to the conical surface, extending obliquely from the inside of the lower section outward and downward. The number of through holes is reasonably set according to the detection requirements of the smoke alarm body 1 and the area of ​​the conical surface of the lower section. The spacing between adjacent through holes is uniform to ensure the uniformity of air circulation and the comprehensiveness of detection.

[0032] The diameter of the through hole is matched with the diameter of the brush 5, which ensures that the brush 5 can be smoothly inserted into the through hole for cleaning, and that the cleaning will not be incomplete due to excessive gap. The length of the through hole extending downward is appropriate to be able to connect the sensing chamber without affecting the structural strength of the smoke alarm body 1.

[0033] Preferred, such as Figure 1-2 As shown, the guide plate 3 is fixed to the side of the rotating ring 2. The guide plate 3 is set as a cuboid structure. The guide plate 3 is fixedly connected to the rotating ring 2. The length direction of the guide plate 3 is perpendicular to the tapered surface of the lower section, ensuring that the slide plate 4 can slide along the guide plate 3 with sufficient stroke, thereby driving the brush 5 to be fully inserted into the through hole for cleaning.

[0034] The slide plate 4 is slidably mounted on the outer surface of the guide plate 3. The slide plate 4 has sliding holes that match the cross-section of the guide plate 3. The inner wall of the sliding holes is smooth to reduce sliding friction with the guide plate 3 and ensure that the slide plate 4 can slide smoothly.

[0035] A servo motor is installed on the bottom surface of the lower section. A connecting shaft is fixed to the output end of the servo motor. The connecting shaft is fixedly connected to the slide plate 4. The servo motor can drive the connecting shaft to rotate, thereby driving the slide plate 4 to rotate, and in turn driving the guide plate 3 and the rotating ring 2 to rotate.

[0036] The elastic element is set as a spring 11, which is sleeved on the outer periphery of the guide plate 3 and connected to the rotating ring 2 and the slide plate 4 at both ends respectively. The spring 11 is in a slightly compressed state in its natural state, ensuring that it always applies an elastic force to the slide plate 4 in the direction of the lower section. When the slide plate 4 slides inward along the guide plate 3, the spring 11 is further compressed to store elastic potential energy. When the guide shaft 8 reaches the connection point between the top of the inclined groove 9 and the L-shaped groove 10, the elastic potential energy is released, providing power for the rapid turning of the guide shaft 8.

[0037] Several brushes 5 are fixed on the side of the slide plate 4 facing the smoke alarm body 1. The axis of the brushes 5 is parallel to the axis of the through hole, and they are inclined brushes extending outward and upward from the slide plate 4. The brushes 5 are made of wear-resistant and non-shedding nylon or metal wire. The length of the brushes 5 is slightly greater than the depth of the through hole to ensure that the brushes 5 can reach the bottom of the hole when inserted into it, so as to thoroughly clean the impurities inside the through hole. The arrangement of the brushes 5 is consistent with the distribution of the through holes. Each group of brushes 5 corresponds to a vertical row of through holes to ensure that each through hole can be cleaned accurately. The brushes 5 are fixedly connected to the slide plate 4 by adhesive or snap-fit, which facilitates the replacement of the brushes 5 after they wear out.

[0038] Preferred, such as Figure 1-2 As shown, a wave-shaped guide groove 7 is provided on the side of the annulus 6, including multiple intermittently arranged inclined grooves 9. The length of the inclined groove 9 is reasonably designed according to the required insertion depth of the brush 5 to ensure that the brush 5 can be fully inserted into the through hole for cleaning. An L-shaped groove 10 is provided between two adjacent inclined grooves 9. The horizontal section of the L-shaped groove 10 is connected to the bottom end of the inclined groove 9, and the vertical section extends upward and is connected to the top end of the adjacent inclined groove 9. Its length is preferably sufficient to meet the turning requirements of the guide shaft 8. The vertical section of the L-shaped groove 10 is opened perpendicular to the tapered surface of the lower section.

[0039] The slide plate 4 can drive the brush 5 to be inserted into the through hole in a direction parallel to the axis of the through hole. The width of the wave-shaped guide groove 7 is matched with the diameter of the guide shaft 8 to ensure that the guide shaft 8 will not get stuck when it moves in the groove, and at the same time, it can ensure the accuracy of the movement.

[0040] The guide shaft 8 is fixed on the slide plate 4 and embedded inside the wave-shaped guide groove 7. The guide shaft 8 is set as a cylindrical structure, with one end fixedly connected to the slide plate 4 and the other end embedded inside the wave-shaped guide groove 7. A rolling bearing is provided at the end of the guide shaft 8 embedded in the guide groove. The rolling bearing makes rolling contact with the inner wall of the wave-shaped guide groove 7, converting sliding friction into rolling friction, reducing the resistance when the guide shaft 8 moves, reducing wear, and extending service life. The length of the guide shaft 8 ensures that it can be stably embedded in the guide groove and will not fall off.

[0041] The working process of this device is as follows: When the railway locomotive is running, the servo motor drives the connecting shaft and the slide plate 4 to rotate, which in turn drives the guide plate 3 and the rotating ring 2 to rotate. Then, the slide plate 4 on the guide plate 3, under the cooperation of the guide shaft 8 and the wave-shaped guide groove 7, makes a reciprocating sliding motion along the guide plate 3.

[0042] Specifically, when the slide plate 4 rotates, the guide shaft 8 slides in the inclined groove 9 of the wave-shaped guide groove 7. Due to the inclined design of the inclined groove 9, the guide shaft 8 will drive the slide plate 4 to slide inward along the guide plate 3. The spring 11 is compressed and stores elastic potential energy. At this time, the brush 5 on the slide plate 4 will gradually insert into the through hole of the smoke alarm body 1 along the inclined direction to clean the dust, oil and other impurities on the inner wall and opening of the through hole.

[0043] When the guide shaft 8 slides to the connection point between the top of the inclined groove 9 and the L-shaped groove 10, the elastic potential energy of the spring 11 is released, which drives the guide shaft 8 to quickly enter the connection point between the vertical and horizontal sections of the L-shaped groove 10. At this time, the slide plate 4 slides inward quickly under the action of the spring 11, and the brush 5 is quickly pulled out of the through hole. The impurities swept down fall off under the action of the airflow and gravity of the brush 5. Then, the rotating ring 2 continues to rotate, and the guide shaft 8 slides along the horizontal section of the L-shaped groove 10 to the bottom of the next inclined groove 9, and enters the next cycle. This is repeated to achieve continuous and automatic cleaning of all through holes.

[0044] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A smoke alarm device for railway locomotives, characterized in that: include The smoke detector body has a rotating ring on its circumferential side. Guide plate, fixed to the circumferential side of the rotating ring; A sliding plate is slidably disposed on the outer surface of the guide plate, and several brushes are fixed on the side of the sliding plate facing the smoke alarm body; A circular ring is fixed to the bottom surface of the smoke detector body, and a wavy guide groove is provided on the circumferential side of the circular ring. A guide shaft is fixed on the slide plate, and the guide shaft is embedded inside a wave-shaped guide groove; The guide shaft drives the slide plate to produce alternating undulations, during which the brushes are inserted into the through holes on the smoke detector body in sequence.

2. The smoke alarm device for railway locomotives according to claim 1, characterized in that: The smoke alarm body includes a cylindrical upper section and a conical lower section, wherein the diameter of the lower section gradually decreases from the upper section downwards, the ring is configured as a conical ring plate, and its diameter gradually increases from the lower section downwards, and the conical surface of the lower section of the smoke alarm body is perpendicular to the conical surface of the ring.

3. A smoke alarm device for railway locomotives according to claim 2, characterized in that: The through hole on the smoke alarm body is opened on the tapered surface of the lower section, and the through hole is opened perpendicular to the tapered surface, forming an oblique through hole extending obliquely downward from the inside of the lower section. The axis of the brush is parallel to the axis of the through hole, forming an oblique brush body extending obliquely upward from the slide plate.

4. A smoke alarm device for railway locomotives according to claim 3, characterized in that: The wavy guide groove includes multiple spaced inclined grooves, and an L-shaped groove is provided between two adjacent inclined grooves. The vertical section of the L-shaped groove is perpendicular to the conical surface of the lower section.

5. A smoke alarm device for railway locomotives according to claim 4, characterized in that: It also includes an elastic element, which is a spring, sleeved on the outer periphery of the guide plate and connected to a rotating ring and a sliding plate at both ends respectively. The spring is used to drive the guide shaft to slide quickly when the guide shaft reaches the connection point between the top of the inclined groove and the L-shaped groove.

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