Vehicle reversing early warning system and vehicle

Abstract

The utility model discloses a vehicle backing-up early warning system and a vehicle, and relates to the technical field of backing-up early warning, in one embodiment of the utility model, the vehicle backing-up early warning system comprises a proximity switch, a prompter and an early warning mechanism, the proximity switch is arranged at the tail of the vehicle; the prompter is electrically connected with the proximity switch through the control circuit; the early warning mechanism comprises a rotating shaft and two swing rods, the two ends of the rotating shaft are rotatably arranged on the two opposite side walls of the vehicle in a penetrating mode respectively, the two swing rods are located outside the two side walls respectively and connected with the two ends of the rotating shaft respectively, and one swing rod arranged on the same side as the proximity switch covers the proximity switch; each swing rod is configured to abut against an external retaining wall under the condition that the vehicle backs up so as to swing relative to the tail of the vehicle to be away from the proximity switch to expose the proximity switch, and the prompter is triggered through the control circuit. The vehicle reversing early warning system is good in reliability, simple in structure and low in cost.

Description

Technical Field

[0001] This utility model relates to the field of reversing warning technology, and in particular to a vehicle reversing warning system and vehicle. Background Technology

[0002] Currently, in certain scenarios, the large size of some vehicles makes it difficult to observe the actual situation behind them when reversing, hindering direct reversing. Existing solutions typically involve adding radar warning devices to the vehicles, which use radar detection to determine whether there are obstacles behind the vehicle and whether it has reversed to the correct position. However, in some scenarios, such as when mining dump trucks are reversing in complex mining environments, the radar is susceptible to electromagnetic interference, affecting its accuracy and potentially failing to issue timely warning signals. This can easily lead to safety accidents and compromises its reliability. Utility Model Content

[0003] The main purpose of this utility model is to propose a vehicle reversing warning system and vehicle, which aims to solve the technical problem of poor reliability of existing reversing warning devices.

[0004] To achieve the above objectives, this utility model proposes a vehicle reversing warning system, comprising:

[0005] A proximity switch is located at the rear of the vehicle and on the outside of one of the side walls of the vehicle.

[0006] The indicator is electrically connected to the proximity switch via a control circuit;

[0007] The warning mechanism includes a rotating shaft and two swing rods. The two ends of the rotating shaft are rotatably mounted on two opposite side walls of the vehicle. The two swing rods are located outside the two side walls and are connected to the two ends of the rotating shaft. One of the swing rods, located on the same side as the proximity switch, covers the proximity switch. Each swing rod is configured to abut against an external barrier and swing relative to the rear of the vehicle when the vehicle is reversing. The swing rod covering the proximity switch can move away from the proximity switch and expose the proximity switch when swinging relative to the rear of the vehicle, so as to trigger the warning device through the control circuit.

[0008] In one embodiment, each of the swing rods has a free end and a connecting end at both ends, the connecting end having a connecting position connected to the rotating shaft, and the connecting end of one of the swing rods disposed on the same side as the proximity switch is further provided with a blocking part for blocking the proximity switch.

[0009] The free end is configured to abut against an external retaining wall and rotate around the connection position when the vehicle is reversing. When the swing rod, which is located on the same side as the proximity switch, rotates around the connection position at its free end, it can drive the blocking part to rotate around the connection position to move away from the proximity switch and expose the proximity switch.

[0010] In one embodiment, a baffle is provided at the connecting end of a swing rod disposed on the same side as the proximity switch, the baffle forming the blocking part, and there is a gap between the baffle and the proximity switch.

[0011] In one embodiment, the two ends of the rotating shaft are rotatably connected to the two side walls via bearings, and there is a gap between the swing rod and the corresponding side wall.

[0012] In one embodiment, the vehicle reversing warning system further includes a power supply, and the control circuit includes:

[0013] A control module, which is electrically connected to the proximity switch, is used to output a trigger signal when the proximity switch is exposed.

[0014] A first switch is electrically connected to the control module. The power supply, the first switch, and the indicator form an indicator circuit. The first switch is used to connect the indicator circuit according to the trigger signal.

[0015] In one embodiment, the control module includes a first relay coil K1, a first relay trigger switch K11, and a second relay coil K2, wherein the first switch is the second relay trigger switch K21;

[0016] The power supply, the proximity switch, and the first relay coil K1 form a first triggering circuit. The first triggering circuit is disconnected when the proximity switch is exposed, thereby de-energizing the first relay coil K1.

[0017] The first relay trigger switch K11 is a normally closed contact that closes when the first relay coil K1 is de-energized;

[0018] The power supply, the second relay coil K2, and the first relay trigger switch K11 form a second trigger circuit. The second trigger circuit is connected when the first relay trigger switch K11 is closed, thereby energizing the second relay coil K2.

[0019] The second relay trigger switch K21 is a normally open contact that closes when the second relay coil K2 is energized, thereby connecting the indication circuit.

[0020] In one embodiment, the control circuit further includes a throttle control switch and a throttle controller. The throttle control switch is electrically connected to the control module, and the throttle control switch and the throttle controller form a fuel supply circuit. The throttle control switch is used to disconnect the fuel supply circuit according to the trigger signal.

[0021] In one embodiment, the throttle control switch is a second relay trigger switch K22; the second relay trigger switch K22 is a normally closed contact that opens when the second relay coil K2 is energized, thereby disconnecting the fuel supply circuit.

[0022] In one embodiment, the indicator is an indicator light.

[0023] This utility model also proposes a vehicle that applies the above-mentioned vehicle reversing warning system.

[0024] This utility model discloses a vehicle reversing warning system. It employs a proximity switch and a warning mechanism, both located at the rear of the vehicle. The warning mechanism includes two swing rods connected to both ends of a rotating shaft. When the vehicle is reversing, the swing rods contact the external barrier before the vehicle's tires. When the bottom end of the swing rod contacts the external barrier, it swings relative to the vehicle. The swinging motion is centered on the rotating shaft, and the shaft enables both swing rods to swing synchronously. Therefore, when either swing rod contacts the external barrier, it will cause the other to swing relative to the vehicle. This design ensures that when either swing rod contacts the barrier, the swing rod on the same side as the proximity switch will swing, exposing the proximity switch. This triggers a warning device via a control circuit to alert the driver that the vehicle has reversed into position. Compared to existing technologies that use radar to detect whether a vehicle is in reverse, the vehicle reversing warning system of this utility model uses a warning mechanism and a proximity switch to trigger a prompter to achieve the warning function. The warning mechanism is a mechanical structure, which is not affected by electromagnetic interference in special environments and has good reliability. Furthermore, it relies on the swing of a swing arm to trigger the prompter to achieve the warning, which is simple in structure and lower in cost. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the warning mechanism and the external retaining wall in a vehicle reversing warning system according to an embodiment of the present invention;

[0027] Figure 2 A side view of the vehicle reversing warning system provided in an embodiment of the present invention when the swing arm abuts against an external retaining wall;

[0028] Figure 3 A circuit diagram of the control circuit in a vehicle reversing warning system provided in an embodiment of this utility model.

[0029] Explanation of icon numbers:

[0030] 1. Warning mechanism; 11. Swing lever; 111. Free end; 112. Connecting end; 12. Rotating shaft; 13. Baffle; 2. Proximity switch; 3. Control circuit; 31. Control module; RS232. Throttle controller; L1. Indicator; K1. First relay coil; K2. Second relay coil; K11. First relay trigger switch; K21. Second relay trigger switch; K22. Second relay trigger switch;

[0031] 200. Rear of the vehicle;

[0032] 300. Retaining wall.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] 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 scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] This utility model proposes a vehicle reversing warning system.

[0038] Please see Figures 1-2 In one embodiment of this utility model, the vehicle reversing warning system includes a proximity switch 2, a warning device, and a warning mechanism 1. The proximity switch 2 is located at the rear 200 of the vehicle and outside one of the side walls of the vehicle. The warning device is electrically connected to the proximity switch 2 via a control circuit 3. The warning mechanism 1 includes a rotating shaft 12 and two swing rods 11. The two ends of the rotating shaft 12 are rotatably inserted through two opposite side walls of the vehicle. The two swing rods 11 are located outside the two side walls and are connected to the two ends of the rotating shaft 12. One of the swing rods 11, which is located on the same side as the proximity switch 2, covers the proximity switch 2. Each swing rod 11 is configured to abut against the external barrier 300 and swing relative to the rear 200 when the vehicle is reversing. The swing rod 11 that covers the proximity switch 2 can move away from the proximity switch 2 and expose the proximity switch 2 when swinging relative to the rear 200, so as to trigger the warning device through the control circuit 3.

[0039] The vehicle reversing warning system of this utility model adopts a proximity switch 2 and a warning mechanism 1, both of which are located at the rear 200 of the vehicle. The warning mechanism 1 includes two swing rods 11 connected to both ends of a rotating shaft 12. When the vehicle is reversing, the swing rods 11 will abut against the outer retaining wall 300 before the vehicle tires. When the bottom end of the swing rod 11 abuts against the outer retaining wall 300, it can swing relative to the vehicle. During the swing, the rotating shaft 12 is the central axis, and the two swing rods 11 can swing synchronously through the rotating shaft 12. Therefore, when any one swing rod 11 abuts against the outer retaining wall 300, it will drive the other one to swing relative to the vehicle. With this configuration, when any swing rod 11 abuts against the retaining wall 300, the swing rod 11 located on the same side as the proximity switch 2 can swing and expose the proximity switch 2, thereby triggering the indicator through the control circuit 3 to remind the driver that the vehicle has reversed into position. Compared to the existing technology that uses radar to detect whether a vehicle is in reverse, the vehicle reversing warning system of this utility model uses a warning mechanism 1 and a proximity switch 2 to trigger a prompt to achieve a warning. The warning mechanism 1 is a mechanical structure, which is not affected by electromagnetic interference in special environments and has good reliability. It relies on the swing of the swing rod 11 to trigger the warning, which is simple in structure and has a lower cost.

[0040] Furthermore, the two swing rods 11 are rigidly connected to the rotating shaft 12 to ensure that the two swing rods 11 can swing synchronously.

[0041] It should be noted that the proximity switch 2 can be a DC proximity switch in the prior art, which consists of an oscillator and a shaping amplifier. After the oscillator starts oscillating, an alternating magnetic field is generated on the sensing head of the switch. When a metal object approaches the sensing area, eddy currents are generated in the metal object, thereby absorbing the energy of the oscillator and causing the oscillator to stop oscillating. The energy is then converted into an electrical signal by the shaping amplifier, thereby achieving the purpose of detecting the approach of a metal object.

[0042] As can be seen, in this embodiment, at least a portion of the swing lever 11 that covers the proximity switch 2 is made of metal.

[0043] In one embodiment, each swing rod 11 has a free end 111 and a connecting end 112 at its two ends. The connecting end 112 has a connecting position that is connected to the rotating shaft 12. The connecting end 112 of a swing rod 11 disposed on the same side as the proximity switch 2 is also provided with a blocking part that blocks the proximity switch 2. The free end 111 is configured to abut against the external retaining wall 300 and rotate around the connecting position when the vehicle is reversing. When the free end 111 of a swing rod 11 disposed on the same side as the proximity switch 2 rotates around the connecting position, it can drive the blocking part to rotate around the connecting position to move away from the proximity switch 2 and expose the proximity switch 2.

[0044] Understandably, the swing arm 11, which is located on the same side as the proximity switch 2, can completely cover the proximity switch 2 under normal conditions due to its own weight. When it swings, it drives the blocking part to rotate around the pivot 12, thereby moving the blocking part away from the proximity switch 2 and exposing the proximity switch 2, thus triggering the indicator to alert the driver. It has good reliability and a simple structure that is easy to install.

[0045] In one embodiment, a baffle 13 is provided at the connection end 112 of a swing rod 11 disposed on the same side as the proximity switch 2. The baffle 13 forms a blocking part, and there is a gap between the baffle 13 and the proximity switch 2.

[0046] Understandably, by setting a baffle 13 on the swing arm 11, the baffle 13 covers the proximity switch 2. A gap is left between the baffle 13 and the proximity switch 2, which not only ensures the blocking effect, but also avoids wear or false triggering that may be caused by direct contact between the baffle 13 and the proximity switch 2. Furthermore, the existence of the gap makes the swing arm 11 and the baffle 13 rotate more smoothly, further improving reliability.

[0047] In one embodiment, the two ends of the rotating shaft 12 are rotatably connected to the two side walls via bearings, and there is a gap between the swing rod 11 and the corresponding side wall.

[0048] The rotating shaft 12 is rotatably connected to the two side walls through bearings, which significantly reduces the frictional resistance when the rotating shaft 12 rotates, allowing the swing rod 11 to rotate more flexibly and smoothly. The gap design between the swing rod 11 and the side wall avoids the jamming or wear problems that may be caused by the direct contact between the swing rod 11 and the side wall, ensuring that the swing rod 11 rotates more freely.

[0049] Please combine Figure 3 In one embodiment, the vehicle reversing warning system further includes a power supply, and the control circuit 3 includes a control module 31 and a first switch. The control module 31 is electrically connected to the proximity switch 2 and is used to output a trigger signal when the proximity switch 2 is exposed. The first switch is electrically connected to the control module 31, and the power supply, the first switch and the indicator form an indicator circuit. The first switch is used to connect the indicator circuit according to the trigger signal.

[0050] Understandably, when proximity switch 2 is covered, proximity switch 2 continuously transmits an electrical signal to control module 31. Control module 31 receives the electrical signal and controls the first switch to always be open, without triggering the indicator. When proximity switch 2 is exposed, proximity switch 2 will not transmit an electrical signal to control module 31, causing the first switch to close. At this time, the indicator circuit is connected, thereby triggering the indicator. It can be seen that the indicator triggering method in this utility model is simple and reliable.

[0051] It should be noted that the proximity switch 2, control module 31, and indicator are all powered by a power supply, which can be the vehicle's power supply, without the need for an additional power supply.

[0052] In one embodiment, the control module 31 includes a first relay coil K1, a first relay trigger switch K11, and a second relay coil K2. The first switch is the second relay trigger switch K21. The power supply, proximity switch 2, and first relay coil K1 form a first trigger circuit. The first trigger circuit is disconnected when proximity switch 2 is exposed, thereby de-energizing the first relay coil K1. The first relay trigger switch K11 is a normally closed contact, which closes when the first relay coil K1 is de-energized. The power supply, second relay coil K2, and first trigger switch K11 form a second trigger circuit. The second trigger circuit is connected when the first relay trigger switch K11 is closed, thereby energizing the second relay coil K2. The second trigger switch K21 is a normally open contact, which closes when the second relay coil K2 is energized, thereby connecting the indication circuit.

[0053] Understandably, the control module 31 consists of a first relay coil K1, a first relay trigger switch K11, and a second relay coil K2. The first relay coil K1 is electrically connected to the proximity switch 2. When the proximity switch 2 is covered, it continuously transmits an electrical signal to the first relay coil K1, energizing the first relay coil K1 and controlling the first relay trigger switch K11 to open. When the proximity switch 2 is exposed, no electrical signal is transmitted to the first relay coil K1, at which point the first relay coil is de-energized, and the first relay trigger switch K11 closes, thus connecting the second trigger circuit. At this time, the second relay K2 is energized, and the second relay K2 outputs a control signal to control the second relay trigger switch K21 to close, thereby connecting the prompting circuit to trigger the prompter.

[0054] It should be noted that the above process describes the operation of the system under normal working conditions. However, if a fault occurs, such as a malfunction of the warning mechanism 1 causing the proximity switch 2 to remain exposed, or a fault in the proximity switch 2 circuit, the indicator will be triggered. When the proximity switch 2 is exposed, there is no signal output to the first relay K1. Similarly, a malfunction of the proximity switch 2 will also result in no signal output to the first relay K1. In this case, the first relay trigger switch K11 will be normally closed, thereby connecting the second trigger circuit. The second relay K2 will be energized, controlling the second relay trigger switch K21 to close, thus triggering the indicator. Therefore, the vehicle reversing warning system of this invention can perform self-checks for the above two types of faults, greatly improving safety and reliability.

[0055] In one embodiment, the control circuit 3 further includes a throttle control switch and a throttle controller RS232. The throttle control switch is electrically connected to the control module 31. The throttle control switch and the throttle controller RS232 form a fuel supply circuit. The throttle control switch is used to disconnect the fuel supply circuit according to a trigger signal.

[0056] Understandably, by setting up the throttle controller RS232, the safety of the vehicle when reversing is further improved. When the proximity sensor is exposed, the trigger signal output by the control module 31 also disconnects the throttle control switch, thereby de-energizing the throttle controller RS232 and causing the vehicle to disconnect the throttle, thus stopping the vehicle in time and improving reliability.

[0057] It should be noted that since the throttle controller RS232 is installed inside the vehicle body, the throttle controller RS232 can be powered by other power sources.

[0058] In one embodiment, the throttle control switch is a second relay trigger switch K22. The second relay trigger switch K22 is a normally closed contact that opens when the second relay coil K2 is energized, thus disconnecting the fuel supply circuit. The throttle control switch K22 is controlled by the second relay K2; that is, when the second relay K2 is energized, it controls both K21 to close and K22 to open, achieving a rapid response and timely fuel cut-off to the vehicle, thereby ensuring reversing safety.

[0059] Furthermore, the vehicle reversing warning system also includes a master switch S1; the power supply, master switch S1, first switch and indicator form a warning circuit; the power supply, master switch S1, throttle control switch and throttle controller RS232 form a fuel supply circuit.

[0060] In this embodiment, a main switch S1 is set to control the power supply and disconnection of the entire circuit. The main switch S1 is configured to close when the vehicle is reversing, thereby supplying power to the proximity switch 2, the control module 31, and the indicator.

[0061] In one embodiment, the indicator is a warning light. The warning light can be an existing LED light, which illuminates to provide a clear visual signal to the driver that the vehicle has reversed into position or that there is a malfunction.

[0062] In another implementation, the indicator can also use a buzzer or other sound alarm device to alert the driver that the vehicle has reversed into position. Alternatively, a buzzer and an indicator light can be used simultaneously. Compared to sound alarm devices, indicator lights are more directly visible, especially in noisy environments such as mines, where indicator lights can better alert the driver.

[0063] This utility model also proposes a vehicle equipped with the aforementioned vehicle reversing warning system. The specific structure of this vehicle reversing warning system is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.

[0064] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A vehicle backup warning system, comprising: The vehicle reverse pre-warning system comprises: a proximity switch arranged at the tail of the vehicle and outside one of the side walls of the vehicle; a prompter electrically connected to the proximity switch through a control circuit; a pre-warning mechanism comprising a rotating shaft and two swing rods, two ends of the rotating shaft are rotatably arranged in the two opposite side walls of the vehicle, the two swing rods are arranged outside the two side walls and connected to the two ends of the rotating shaft respectively, one of the swing rods arranged at the same side of the proximity switch covers the proximity switch, and each swing rod is configured to abut against an external barrier to swing relative to the tail of the vehicle in the case of reversing the vehicle, wherein the swing rod covering the proximity switch can expose the proximity switch away from the proximity switch when swinging relative to the tail of the vehicle, so as to trigger the prompter through the control circuit.

2. The vehicle reverse pre-warning system according to claim 1, wherein: two ends of each swing rod are a free end and a connecting end respectively, the connecting end has a connecting position connected to the rotating shaft, and the connecting end of the swing rod arranged at the same side of the proximity switch is further provided with a shielding part shielding the proximity switch; the free end is configured to rotate around the connecting position in the case of reversing the vehicle and abutting against an external barrier, wherein the swing rod arranged at the same side of the proximity switch can drive the shielding part to rotate around the connecting position to expose the proximity switch away from the proximity switch when the free end of the swing rod rotates around the connecting position.

3. The vehicle backup warning system of claim 2, wherein the connecting end of the swing rod arranged at the same side of the proximity switch is provided with a baffle forming the shielding part, and the baffle has a gap with the proximity switch.

4. The vehicle backup warning system of claim 1, wherein two ends of the rotating shaft are rotatably connected to the two side walls through bearings, and the swing rod has a gap with the corresponding side wall.

5. The vehicle backup warning system of any one of claims 1 to 4, wherein, The vehicle reverse pre-warning system further comprises a power supply, and the control circuit comprises: a control module electrically connected to the proximity switch, the control module is configured to output a trigger signal when the proximity switch is exposed; a first switch electrically connected to the control module, the power supply, the first switch and the prompter form a prompt loop, and the first switch is configured to turn on the prompt loop according to the trigger signal.

6. The vehicle reverse pre-warning system according to claim 5, wherein: the control module comprises a first relay coil K1, a first relay trigger switch K11 and a second relay coil K2, and the first switch is a second relay trigger switch K21; the power supply, the proximity switch and the first relay coil K1 form a first trigger loop, the first trigger loop is disconnected when the proximity switch is exposed, so that the first relay coil K1 is de-energized; the first relay trigger switch K11 is a normally closed contact, which is closed when the first relay coil K1 is de-energized; The power supply, the second relay coil K2 and the first relay trigger switch K11 form a second trigger loop, which is turned on when the first relay trigger switch K11 is closed, and makes the second relay coil K2 be electrified; The second relay trigger switch K21 is a normally open contact, which is closed when the second relay coil K2 is electrified, and makes the prompt loop be turned on.

7. The vehicle backup warning system of claim 6, wherein The control circuit further comprises a throttle control switch and a throttle controller, the throttle control switch is electrically connected with the control module, and the throttle control switch and the throttle controller form a fuel supply loop, and the throttle control switch is used for disconnecting the fuel supply loop according to the trigger signal.

8. The vehicle backup warning system of claim 7, wherein, The throttle control switch is a second relay trigger switch K22, the second relay trigger switch K22 is a normally closed contact, which is disconnected when the second relay coil K2 is electrified, and makes the fuel supply loop be disconnected.

9. The vehicle backup warning system of any one of claims 1 to 4, wherein, The prompter is a prompt lamp.

10. A vehicle characterized by comprising: The vehicle applies the vehicle reversing pre-warning system as claimed in any one of claims 1 to 9.

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