Construction train approach alarm device

Abstract

The utility model belongs to train early warning technical field discloses a construction train approach alarm device, include: hollow stand, its top end both sides respectively install a group of built -in millimeter wave radar's come car response transmitter, two groups of come car response transmitter respectively correspond train uplink with downlink, hollow stand top side installs loudspeaker, hollow stand top still installs signal transmitting antenna, compared with prior art, the utility model has the following beneficial effect: through setting come car response transmitter respectively in uplink direction and downlink direction, can quick response come car signal, realize the nearest alarm through loudspeaker, also transmit signal to alarm receiving host computer, trigger big machine light flicker and high -pitch alarm sound emission to complete timely early warning, after train passes, host computer receives stop alarm signal and automatically terminates sound and light early warning, and two groups of transmitter independent collection, transmission come car information forms double insurance, even single failure still can guarantee normal alarm on the spot.

Description

Technical Field

[0001] This utility model specifically relates to a train proximity alarm device for construction, belonging to the field of train early warning technology. Background Technology

[0002] In recent years, the number of high-speed railway lines under the jurisdiction of the railway bureau has increased rapidly, and the construction work near the high-speed railway lines has also increased accordingly. In particular, the construction of large machinery near the operating lines poses a great safety hazard. It is difficult to obtain approval for stationing and guarding outside the track maintenance window. Setting up remote guards at both ends is labor-intensive. Moreover, the above two are all human-based. How to add technical defenses on the basis of human defenses to ensure the safe operation of high-speed railways has become an urgent issue. Therefore, designing, manufacturing and installing a train approach warning device that can promptly receive a train approach warning when a high-speed train is approaching at a certain distance at both ends of the construction site, and can notify the operators of large machinery and the large machinery safety personnel point-to-point of the train approach information and immediately stop the construction work has become an urgent requirement to increase technical defense measures. Therefore, this application proposes a train approach alarm device for construction. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a train approach alarm device for construction. By installing train approach sensor transmitters in both the up and down directions, the device can quickly detect approaching train signals and issue a nearby alarm via a loudspeaker. The signal is also transmitted to the alarm receiving host, triggering the flashing of the engine lights and the sounding of the loudspeaker for timely warning. After the train passes, the host receives a stop alarm signal and automatically terminates the audible and visual warning. The two sets of transmitters independently collect and transmit approaching train information, forming a double insurance system. Even if a single fault occurs, the device can still ensure normal alarm operation on site, thus solving the problems mentioned in the background technology.

[0004] A construction train proximity alarm device includes: The hollow column has a set of on-train approach sensor transmitters with built-in millimeter-wave radar installed on both sides of its top. The two sets of on-train approach sensor transmitters correspond to the train going up and down respectively. A high-volume speaker is installed on one side of the hollow column. A signal transmitting antenna is also installed on the top of the hollow column. An alarm receiving host is provided on one side of the hollow column. The maintenance structure includes auxiliary gears on both sides below the hollow column, with a main gear meshing below the auxiliary gears. A take-up and release wheel is connected to one side of the main gear, and a traction belt is wound around the outside of the take-up and release wheel. A belt-winding wheel is provided on one side of the take-up and release wheel, and a restraining rod is connected to one end of the traction belt after passing through the belt-winding wheel. The rotation of the main gear drives the hollow column to rotate 90° to achieve flattening / standing. During the standing process of the hollow column, the traction belt can restrain it. The height adjustment structure is used to adjust the height of the oncoming vehicle sensor transmitter to match the track height.

[0005] In a preferred embodiment, a bracket is installed on one side of the hollow column, a photovoltaic panel is installed on the bracket, and a charging and discharging module is installed on the back of the photovoltaic panel. A base is provided below the hollow column, and a battery is installed in the base. The photovoltaic panel is electrically connected to the battery through the charging and discharging module.

[0006] In a preferred embodiment, the height adjustment structure includes a linkage outer frame disposed on the outer side below the hollow column, a threaded screw is provided inside the linkage outer frame, a threaded groove is provided on the inner wall of the hollow column, and the threaded screw is threadedly connected to the threaded groove.

[0007] In a preferred embodiment, a set of sliding grooves are respectively opened on both sides of the linkage outer frame, and two sets of sliders are slidably connected in the sliding grooves. The sliders are fixedly connected to the hollow column. A lead screw motor is installed below the linkage outer frame, and the output shaft of the lead screw motor is connected to the threaded lead screw.

[0008] In a preferred embodiment, a fixed frame is provided below the linkage outer frame, and a linkage rod is installed at the bottom of the linkage outer frame. The two ends of the linkage rod pass through the fixed frame and are connected to two sets of auxiliary gears. A gear shaft is rotatably installed below the fixed frame. The two ends of the gear shaft are connected to two sets of main gears and two sets of take-up and release wheels. A stepper motor is fixedly installed on one side above the base, and the output shaft of the stepper motor is connected to one of the main gears.

[0009] In a preferred embodiment, a fixing block is provided between the two sets of winding wheels, and a driven shaft is rotatably installed inside the fixing block. The two ends of the driven shaft are fixedly connected to the winding wheels, and the lower end of the fixing block is fixedly connected to the base.

[0010] In a preferred embodiment, one end of the restraining rod is fixedly connected to the upper end of the linkage outer frame.

[0011] In a preferred embodiment, a wireless transceiver controller is installed on one side of the hollow column. The wireless transceiver controller is electrically connected to a battery, a loudspeaker, a signal transmitting antenna, a vehicle approach sensor transmitter, a stepper motor, and a lead screw motor.

[0012] In a preferred embodiment, the alarm body includes a chassis body, inside which a battery and a receiving module are installed. The receiving module is wirelessly connected to a signal transmitting antenna. A large motor light and a high-volume alarm are installed on one side of the chassis body. The battery is electrically connected to the receiving module, the large motor light, and the high-volume alarm, respectively. Beneficial effects

[0013] By installing approaching vehicle sensor transmitters on the train track and in both directions, the system can quickly detect approaching vehicle signals and issue an alarm to nearby areas via a loudspeaker. Simultaneously, the signal is transmitted to the alarm receiving host, triggering flashing headlights and an audible alarm for timely warning. After the train passes, the host receives a stop alarm signal, automatically terminating the audible and visual warning. The two sets of approaching vehicle sensor transmitters independently collect and transmit approaching vehicle information, forming a double-insurance mechanism. Even if a single transmitter fails, normal alarm operation can still be guaranteed. Furthermore, the device can be connected to an engineering machinery operation warning device to transmit alarm signals, further expanding its warning capabilities.

[0014] Through the designed height adjustment structure, the rotation of the threaded screw can drive the hollow column to move linearly up and down along the path defined by the slide and slider. After the device is installed, the height of the vehicle induction transmitter can be flexibly adjusted through this structure, thereby adapting to tracks of different heights and improving the versatility of the device.

[0015] By designing an inspection structure, the main gear drives the auxiliary gear to rotate, which in turn drives the linkage outer frame to rotate 90°, completing the erection or flattening action. After the linkage outer frame is flattened, the various components on the hollow column can be inspected without climbing, reducing the difficulty of maintenance. During the rotation, the main gear synchronously drives the take-up and release wheel to rotate to take up and release the traction belt. After the traction belt passes around the pulley, it restrains the linkage outer frame through the restraining rod. When the gear drives the bottom of the linkage outer frame to rotate, the restraining rod simultaneously restrains its upper end, which greatly improves the stability of the linkage outer frame and the hollow column during the rotation and erection process, making it less prone to shaking when erected. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another perspective (excluding the alarm receiving host); Figure 3 for Figure 2 A magnified structural diagram of part A; Figure 4 for Figure 2 A schematic diagram of the enlarged structure of part B; Figure 5 This is a schematic diagram of the structure of the alarm body in this utility model.

[0017] In the diagram: 1. Hollow column; 2. Vehicle approach sensor transmitter; 3. High-volume horn; 4. Photovoltaic panel; 5. Bracket; 6. Wireless transceiver controller; 7. Height adjustment structure; 71. Slide rail; 72. Slider; 73. Lead screw motor; 74. Threaded lead screw; 75. Linkage frame; 8. Maintenance structure; 81. Fixed frame; 82. Stepper motor; 83. Auxiliary gear; 84. Main gear; 85. Retractor wheel; 86. Wrapper wheel; 87. Driven shaft; 88. Fixed block; 89. Traction belt; 810. Control rod; 9. Base; 10. Alarm receiver host; 101. Main body of the chassis; 102. Main headlight; 103. High-volume alarm. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5 As shown, a construction train proximity alarm device includes: The hollow column 1 has a set of oncoming vehicle sensor transmitters 2 with built-in millimeter-wave radar installed on both sides of its top. The oncoming vehicle sensor transmitters 2 use built-in millimeter-wave radar sensors to identify the direction of vehicle travel without being bound to a specific track. The principle is to use the radar's multi-receiving antenna array to form detection points covering different ranges. When a vehicle passes by, the radar receives the electromagnetic wave reflection signal emitted by itself, analyzes the order in which different detection points are triggered, and determines the direction of vehicle travel. This device only relies on the reflection characteristics of electromagnetic waves by the vehicle and does not need to be bound to the physical track line. Therefore, it is not affected by the track type or wear condition. The two sets of oncoming vehicle sensor transmitters 2 correspond to the train going up and down respectively. A loudspeaker 3 is installed on one side of the hollow column 1. A signal transmitting antenna is also installed on the top of the hollow column 1. An alarm receiving host 10 is installed on one side of the hollow column 1. The maintenance structure 8 includes auxiliary gears 83 on both sides below the hollow column 1. A main gear 84 is meshed below the auxiliary gears 83. A take-up and release wheel 85 is connected to one side of the main gear 84. A traction belt 89 is wound around the outside of the take-up and release wheel 85. A belt-winding wheel 86 is provided on one side of the take-up and release wheel 85. One end of the traction belt 89 is wound around the belt-winding wheel 86 and connected to a restraining rod 810. The rotation of the main gear 84 drives the hollow column 1 to rotate 90° to achieve flattening / standing. During the standing process of the hollow column 1, the traction belt 89 can restrain it. The height adjustment structure 7 is used to adjust the height of the approach vehicle sensor transmitter 2 to match the track height.

[0020] Please see Figures 1-2 As shown, a bracket 5 is installed on one side of the hollow column 1, and a photovoltaic panel 4 is installed on the bracket 5. A charging and discharging module is installed on the back of the photovoltaic panel 4. A base 9 is located below the hollow column 1, and a battery is installed inside the base 9. The photovoltaic panel 4 is electrically connected to the battery through the charging and discharging module. The bracket 5 provides installation support for the photovoltaic panel 4; the photovoltaic panel 4 can convert solar energy into electrical energy, which is then used to charge the battery in the base 9 through the charging and discharging module on its back.

[0021] Please see Figure 1 , Figure 2 as well as Figure 4 As shown, the height adjustment structure 7 includes a linkage outer frame 75 located on the outer side below the hollow column 1. A threaded screw 74 is provided inside the linkage outer frame 75. A threaded groove is provided on the inner wall of the hollow column 1. The threaded screw 74 is threadedly connected to the threaded groove. The threaded screw 74 and the threaded groove on the inner wall of the hollow column 1 are threadedly engaged, which can convert the rotational motion of the threaded screw 74 into the linear lifting motion of the hollow column 1.

[0022] Please see Figure 1 , Figure 2 as well as Figure 4 As shown, a set of sliding grooves 71 are respectively opened on both sides of the linkage outer frame 75. Two sets of sliders 72 are slidably connected in the sliding grooves 71. The sliders 72 are fixedly connected to the hollow column 1. A lead screw motor 73 is installed below the linkage outer frame 75. The output shaft of the lead screw motor 73 is connected to the threaded lead screw 74. The lead screw motor 73 provides rotational power to the threaded lead screw 74, driving the threaded lead screw 74 to rotate. The sliders 72 are fixed to the hollow column 1 and slide in the sliding grooves 71 of the linkage outer frame 75, which can limit the hollow column 1 to rotate synchronously with the threaded lead screw 74, ensuring that the hollow column 1 only rises and falls in a straight line, thus improving the stability and accuracy of height adjustment.

[0023] Please see Figures 1-3 As shown, a fixed frame 81 is provided below the linkage outer frame 75. A linkage rod is installed at the bottom of the linkage outer frame 75. The two ends of the linkage rod pass through the fixed frame 81 and are connected to two sets of auxiliary gears 83. A gear shaft is rotatably installed below the fixed frame 81. The two ends of the gear shaft are connected to two sets of main gears 84 and two sets of take-up and release wheels 85. A stepper motor 82 is fixedly installed on one side above the base 9. The output shaft of the stepper motor 82 is connected to one of the main gears 84. The output shaft of the stepper motor 82 drives the main gear 84 to rotate. The main gear 84 drives the auxiliary gear 83 to rotate through meshing. The auxiliary gear 83 drives the linkage outer frame 75 and the hollow column 1 to rotate through the linkage rod, realizing flattening / standing. At the same time, the gear shaft synchronously drives the take-up and release wheels 85 to rotate, providing power for the take-up and release of the traction belt 89.

[0024] Please see Figures 1-3As shown, a fixed block 88 is provided between the two sets of winding pulleys 86. A driven shaft 87 is rotatably installed inside the fixed block 88. Both ends of the driven shaft 87 are fixedly connected to the winding pulleys 86. The lower end of the fixed block 88 is fixedly connected to the base 9. The winding pulleys 86 can guide the retracting and extending traction belt 89.

[0025] Please see Figures 1-2 As shown, one end of the restraint rod 810 is fixedly connected to the upper end of the linkage outer frame 75.

[0026] Please see Figures 1-2 As shown, a wireless transceiver controller 6 is installed on one side of the hollow column 1. The wireless transceiver controller 6 is electrically connected to the battery, the loudspeaker 3, the signal transmitting antenna, the vehicle approach sensor transmitter 2, the stepper motor 82, and the lead screw motor 73. The wireless transceiver controller 6 serves as the control core. On the one hand, it receives the sensing signal from the vehicle approach sensor transmitter 2 and controls the loudspeaker 3 to emit sound and the signal transmitting antenna to transmit signals. On the other hand, it can receive signals from the control terminal to control the start and stop of the stepper motor 82 and the lead screw motor 73, thereby realizing the rotation of the maintenance structure 8 and the height adjustment of the height adjustment structure 7.

[0027] Please see Figure 1 and Figure 5 As shown, the alarm system includes a main chassis 101, which houses a battery and a receiving module. The receiving module is wirelessly connected to a signal transmitting antenna. A headlight 102 and a high-volume alarm 103 are mounted on one side of the main chassis 101. The battery is electrically connected to the receiving module, the headlight 102, and the high-volume alarm 103. The receiving module receives oncoming vehicle signals and controls the headlight 102 to flash and the high-volume alarm 103 to sound, thus achieving remote early warning. The battery inside the main chassis 101 provides independent power to the receiving module, the headlight 102, and the high-volume alarm 103.

[0028] In practical use, the working principle of this utility model is as follows: When the construction train approach alarm device is working, the two sets of approach train sensor transmitters 2 on both sides of the top of the hollow column 1, corresponding to the up and down directions of the track, independently collect the approach train signal. After sensing the signal, the signal is transmitted to the wireless transceiver controller 6, which then activates the high-volume speaker 3 to sound an immediate alarm to the vicinity.

[0029] Furthermore, under the transmission of the wireless transceiver controller 6, the signal is wirelessly transmitted to the alarm receiver host 10 via the signal transmitting antenna (the alarm receiver host 10 can be placed around the construction work area); after the receiving module in the alarm receiver host 10 receives the signal, the large machine light 102 on one side of the control box body 101 flashes and the high-volume alarm 103 sounds to achieve remote early warning. After the train passes, the receiving module receives the stop alarm signal and automatically terminates the sound and light warning. Even if a single train sensor transmitter 2 fails, the other group can still ensure normal alarm. At the same time, the alarm receiver host 10 can be connected to the construction machinery operation early warning device to transmit alarm signals and expand the early warning function.

[0030] When it is necessary to adapt to tracks of different heights, the control terminal transmits control signals to the wireless transceiver controller 6. The wireless transceiver controller 6 controls the start of the lead screw motor 73, whose output shaft drives the threaded lead screw 74 inside the linkage frame 75 to rotate. The threaded lead screw 74 engages with the threaded groove on the inner wall of the hollow column 1 for transmission. At the same time, the hollow column 1 moves linearly up and down along the slide groove 71 of the linkage frame 75 through the sliders 72 on both sides, thereby adjusting the height of the approach vehicle sensing transmitter 2.

[0031] When it is necessary to inspect the components on the hollow column 1, a control signal is transmitted to the wireless transceiver controller 6 through the control terminal. The wireless transceiver controller 6 controls the start of the stepper motor 82, and its output shaft drives the main gears 84 at both ends of the gear shaft below the fixed frame 81 to rotate. The main gears 84 mesh and drive the auxiliary gears 83 on both sides to rotate, thereby driving the linkage outer frame 75 and the hollow column 1 to rotate 90° to complete the erection or flattening action. After flattening, it can be inspected without climbing. During the rotation, the main gear 84 synchronously drives the take-up and release wheel 85 on the gear shaft to rotate. The take-up and release wheel 85 takes up and releases the outer winding traction belt 89. After the traction belt 89 is wrapped around the wrapping wheel 86, it drives the take-up and release of the traction belt 89 during the erection of the linkage outer frame 75. At the same time, the restraint rod 810 restrains the upper end of the linkage outer frame 75, which greatly improves the stability of the linkage outer frame 75 and the hollow column 1 when rotating and erecting.

[0032] In terms of power supply, the photovoltaic panel 4 absorbs solar energy and stores it in the battery in the base 9 through the charging and discharging module. The battery then supplies power to the wireless transceiver controller 6, the loudspeaker 3, the vehicle approach sensor transmitter 2, the stepper motor 82, and the lead screw motor 73.

[0033] In addition, if this device is installed in an area with a lot of gravel or close to the track, a protective shell can be installed on the outside of the main gear 84 and the auxiliary gear 83 to enclose them in the shell without affecting the transmission, so that gravel is not easily splashed and stuck in the teeth, causing transmission jamming.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A construction train proximity alarm device, characterized in that, include: A hollow column (1) has a set of on-train sensor transmitters (2) with built-in millimeter-wave radar installed on both sides of its top. The two sets of on-train sensor transmitters (2) correspond to the train going up and down respectively. A loudspeaker (3) is installed on one side above the hollow column (1). A signal transmitting antenna is also installed on the top of the hollow column (1). An alarm receiving host (10) is provided on one side of the hollow column (1). The maintenance structure (8) includes auxiliary gears (83) on both sides below the hollow column (1). A main gear (84) is meshed below the auxiliary gears (83). A take-up and release wheel (85) is connected to one side of the main gear (84). A traction belt (89) is wound around the outside of the take-up and release wheel (85). A belt-winding wheel (86) is provided on one side of the take-up and release wheel (85). One end of the traction belt (89) is wound around the belt-winding wheel (86) and connected to a restraining rod (810). The hollow column (1) is rotated 90° by the rotation of the main gear (84) to achieve flattening / standing. During the standing process of the hollow column (1), the traction belt (89) can restrain it. The height adjustment structure (7) is used to adjust the height of the approach vehicle induction transmitter (2) to match the track height.

2. The construction train proximity alarm device as described in claim 1, characterized in that: A bracket (5) is installed on one side of the hollow column (1), a photovoltaic panel (4) is installed on the bracket (5), and a charging and discharging module is installed on the back of the photovoltaic panel (4). A base (9) is provided below the hollow column (1), and a battery is installed in the base (9). The photovoltaic panel (4) is electrically connected to the battery through the charging and discharging module.

3. The construction train proximity alarm device as described in claim 2, characterized in that: The height adjustment structure (7) includes a linkage outer frame (75) located on the outer side below the hollow column (1). The linkage outer frame (75) is provided with a threaded screw (74). The inner wall of the hollow column (1) is provided with a screw groove. The threaded screw (74) is threadedly connected to the screw groove.

4. The construction train proximity alarm device as described in claim 3, characterized in that: A set of sliding grooves (71) are respectively opened on both sides of the linkage outer frame (75). Two sets of sliders (72) are slidably connected in the sliding grooves (71). The sliders (72) are fixedly connected to the hollow column (1). A screw motor (73) is installed below the linkage outer frame (75). The output shaft of the screw motor (73) is connected to the threaded screw (74).

5. The construction train proximity alarm device as described in claim 4, characterized in that: A fixed frame (81) is provided below the linkage outer frame (75). A linkage rod is installed at the bottom of the linkage outer frame (75). The two ends of the linkage rod pass through the fixed frame (81) and are connected to two sets of auxiliary gears (83). A gear shaft is rotatably installed below the fixed frame (81). The two ends of the gear shaft are connected to two sets of main gears (84) and two sets of take-up and release wheels (85). A stepper motor (82) is fixedly installed on one side above the base (9). The output shaft of the stepper motor (82) is connected to one of the main gears (84).

6. The construction train proximity alarm device as described in claim 5, characterized in that: A fixing block (88) is provided between the two sets of winding pulleys (86). A driven shaft (87) is rotatably installed inside the fixing block (88). Both ends of the driven shaft (87) are fixedly connected to the winding pulleys (86), and the lower end of the fixing block (88) is fixedly connected to the base (9).

7. The construction train proximity alarm device as described in claim 1, characterized in that: One end of the restraining rod (810) is fixedly connected to the upper end of the linkage outer frame (75).

8. A construction train approach warning device as defined in claim 6, wherein: A wireless transceiver controller (6) is installed on one side of the hollow column (1). The wireless transceiver controller (6) is electrically connected to the battery, the loudspeaker (3), the signal transmitting antenna, the vehicle approach sensor transmitter (2), the stepper motor (82), and the lead screw motor (73).

9. A construction train proximity alarm device as described in claim 8, characterized in that: The alarm receiving host (10) includes a chassis body (101), in which a battery and a receiving module are installed. The receiving module is wirelessly connected to a signal transmitting antenna. A large motor light (102) and a high-volume alarm (103) are installed on one side of the chassis body (101). The battery is electrically connected to the receiving module, the large motor light (102) and the high-volume alarm (103) respectively.

Images