A stop device for a dummy trolley

Abstract

This utility model discloses a stopping device for a dummy trolley, belonging to the field of stopping equipment. The device includes a support frame, a rotating component, a power source, and a stop block. In normal use, the stop block is off the ground and located on the outer side of the wheel's outer circumference. When needed, the power source is activated, driving the rotating component to swing, which in turn lowers the stop block until it is positioned below and to the side of the wheel, thus blocking the wheel and preventing the dummy trolley from slipping. The stop block is connected to the dummy trolley frame via the support frame and the rotating component; therefore, the stop block cannot be placed directly on the dummy trolley. Furthermore, because the rotating component is driven by the power source to swing, thereby moving the stop block to the target position, the stop block will not be misplaced or moved due to accidental contact, effectively ensuring its stopping effect on the wheel.

Description

Technical Field

[0001] This utility model relates to the field of stopping devices, and in particular to a stopping device for a dummy trolley. Background Technology

[0002] Urban rail vehicles are rail transit vehicles that operate within or around cities, such as subways, light rail, and trams. They are characterized by large passenger capacity, high speed, high punctuality, and environmental friendliness and energy efficiency, making them an important tool for alleviating urban traffic congestion.

[0003] A dummy car is a structural design that simulates a bogie, providing wheel rotation and support. Urban rail vehicles do not have bogies before the wheels are installed; therefore, dummy cars are needed for support during vehicle transfer and assembly. Typically, each car corresponds to two sets of dummy cars, and each dummy car has four wheels. Because urban rail vehicles are produced on a rhythmic pace, the vehicles placed on the dummy cars need to be moved back and forth to different platforms or workshops, requiring the dummy cars to have the ability to move forward and backward and to remain stationary in a certain location.

[0004] In existing technology, stoppers are placed on dummy trolleys, one on each dummy trolley and two on each vehicle section. When the dummy trolleys need to be stopped, the stoppers must be manually placed at the wheels to prevent the vehicle from rolling away. However, existing vehicle stopping methods, because they rely on manual placement of the stoppers, have a certain degree of uncontrollability. For example, there is the possibility of forgetting to place the stoppers on the dummy trolleys, or improper placement at the wheels. Furthermore, since the stoppers are independent, they are prone to displacement due to accidental contact after placement, which could cause the vehicle to roll away, resulting in a collision and causing quality damage. Utility Model Content

[0005] This invention provides a stopping device for a dummy trolley, which can solve the problem of uncontrollable risks associated with the manual placement of the stop device in existing stopping devices.

[0006] The objective of this utility model can be achieved through the following technical solutions: A stopping device for a dummy trolley, comprising: A support frame, which is fixedly mounted on the vehicle frame; A rotating component, one end of which is rotatably connected to the support frame; A power source is fixedly mounted on the support frame and is used to drive the rotating component to rotate. A stop block is fixedly disposed at the other end of the rotating component, and the stop block is located on the outside of the wheel of the dummy trolley.

[0007] In one embodiment of this utility model, a controller is also provided, which is used to control the start and stop of the power source.

[0008] In one embodiment of this utility model: the controller is disposed inside the control box.

[0009] In one embodiment of this utility model: a pressure sensor is provided on one side of the stop block near the wheel, and the pressure sensor is connected to the controller.

[0010] In one embodiment of this utility model: a rubber layer is provided on the outer side of the pressure sensor.

[0011] In one embodiment of this utility model, an alarm is also provided on the control box.

[0012] In one embodiment of this utility model: a camera facing the movement trajectory of the stopper is provided on the support frame.

[0013] In one embodiment of this utility model: the stop block includes a flat surface for contacting the ground and a stop surface for contacting the wheel, wherein the distance between the stop surface near the wheel end and the flat surface is smaller than the distance between the other end and the flat surface.

[0014] In one embodiment of this utility model, the stop surface is an arc-shaped surface.

[0015] In one embodiment of this utility model: a limiting structure is provided on the support frame, and the limiting structure is arranged on the rotation path of the rotating component to limit the rotation angle of the rotating component.

[0016] The stopping device for a dummy trolley according to this utility model has at least one of the following technical effects: This device includes a support frame, a rotating component, a power source, and a stop block. In normal operation, the stop block is detached from the ground and located on the outer side of the wheel's outer circumference. When needed, the power source activates, driving the rotating component to swing, which in turn lowers the stop block until it is positioned below and to the side of the wheel, thus blocking the wheel and preventing the dummy trolley from slipping. In this application, because the stop block is connected to the dummy trolley frame via the support frame and the rotating component, there is no risk of forgetting to place the stop block on the dummy trolley during manual placement. Furthermore, since the power source drives the rotating component to swing, thereby moving the stop block to the target position, the stop block will not be misplaced or moved due to accidental contact, effectively ensuring its stopping effect on the wheel and preventing slippage. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood in conjunction with the following description of the embodiments with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. Wherein: Figure 1 This is a schematic diagram of the structure of the stop block when it is located under the wheel in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the stop block when it is detached from the ground according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the sensor and the stop block in an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Support frame; 2. Rotating component; 3. Power source; 4. Stop block; 5. Frame; 6. Wheel; 7. Sensor; 8. Rubber layer; 9. Limiting structure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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 are within the protection scope of this utility model.

[0020] like Figure 1-3 As shown in the figure, an embodiment of this utility model provides a stopping device for a dummy trolley, including a support frame 1, a rotating component 2, a power source 3, and a stop block 4. The frame 5 is the main structure of the dummy trolley, and the support frame 1 is fixedly mounted on the frame 5. The support frame 1 can be a plate-like, rod-like, or frame-like structure, as long as it can provide mounting positions for the relevant structures and provide support.

[0021] Please see Figure 1-2 In one embodiment of the present invention, one end of the rotating member 2 is rotatably connected to the support frame 1; the power source 3 is fixedly mounted on the support frame 1, and the power source 3 is used to drive the rotating member 2 to rotate; the stop block 4 is fixedly mounted on the other end of the rotating member 2, and the stop block 4 is located on the outside of the wheel 6 of the dummy trolley.

[0022] This device includes a support frame 1, a rotating component 2, a power source 3, and a stop block 4. In normal operation, the stop block 4 is detached from the ground and located on the outer side of the outer surface of the wheel 6. When needed, the power source 3 is activated, driving the rotating component 2 to swing, which in turn lowers the stop block 4 until it is positioned below and to the side of the wheel 6, thus blocking the wheel 6 and preventing the dummy trolley from slipping. In this application, since the stop block 4 is connected to the frame 5 of the dummy trolley via the support frame 1 and the rotating component 2, there is no possibility of forgetting to place the stop block 4 on the dummy trolley during manual placement. Furthermore, because the rotating component 2 is driven to swing by the power source 3, thereby moving the stop block 4 to the target position, the stop block 4 will not be misplaced or moved due to accidental contact, effectively ensuring its stopping effect on the wheel 6 and preventing slippage.

[0023] Please see Figure 1-2 In one embodiment of this utility model, the specific shape of the rotating member 2 is not limited. As an example, the rotating member 2 can be a rod-shaped structure. The rotating member 2 can be rotatably connected to the support frame 1 at one end, or it can be rotatably connected to the support frame 1 near the end. The rotating member 2 can also be directly fixed on the output shaft of the power source 3 so that the power source 3 can drive the rotating member 2 to rotate.

[0024] Please see Figure 1-2 In one embodiment of this utility model, the power source 3 can be fixedly mounted on the support frame 1, and the power source 3 is used to drive the rotating part 2 to rotate; specifically, the power source 3 can be a stepper motor, the output shaft of the motor drives and connects to the rotating part 2, and can drive the rotating part 2 to rotate.

[0025] Please see Figure 1-2 In one embodiment of this utility model, the specific shape of the stop block 4 is not limited; it can be a wedge, triangle, or polygonal structure, as long as it can effectively stop the wheel 6. As an example, the stop block 4 includes a flat surface for contacting the ground and a stop surface for contacting the wheel 6. The distance between the stop surface near the wheel 6 and the flat surface is less than the distance between the other end and the flat surface. That is, when the stop block 4 is on the ground and functions as a stop, the height of the stop block 4 near the wheel 6 is less than the height of the other end, so as to effectively stop the wheel 6. The stop surface can be a plane or an arc-shaped surface; preferably, the stop surface is an arc-shaped surface to better fit the wheel 6.

[0026] In one embodiment of this utility model, the stopping device may further include a control box (not shown in the figure). The control box may be fixedly mounted on the frame 5, the support frame 1, or the rotating component 2. The control box may contain a controller, which is signal-connected to the power source 3 and used to control the start and stop of the power source 3. The controller may be a built-in microcontroller (such as an Arduino), and the control box may also contain a relay module.

[0027] Please see Figure 3 In one embodiment of this utility model, a pressure sensor 7 is provided on the side of the stop block 4 near the wheel 6, and the pressure sensor 7 is connected to the controller. The pressure sensor 7 is used to detect whether the wheel 6 is pressing against the stop surface, thereby determining whether the stop block 4 is properly positioned and functioning. The pressure sensor 7 can be glued to the stop block 4. Furthermore, a rubber layer 8 can be provided on the outer side of the pressure sensor 7. The wear-resistant rubber layer 8 protects the sensor 7 and increases the friction of the stop surface. The pressure sensor 7 can be an impact-resistant thin-film pressure sensor 7 (such as the FSR series), triggered by pressure when in contact with the wheel 6, with a range covering 1 / 3 of the wheel 6's weight to ensure trigger sensitivity. The sensor 7 is located at the force point of the stop surface, such as in the middle of the stop surface. The wire of the sensor 7 can be connected to the control box through the hollow channel inside the rotating part 2 to avoid cable tangling. Simultaneously, the sensor 7 and related cables are waterproofed (e.g., coated with sealant) to adapt to outdoor or humid environments.

[0028] In one embodiment of this utility model, an alarm (not shown in the figure) may also be provided on the control box. The alarm may be a buzzer and / or an indicator light. When the controller determines that the stop block 4 is in place, no alarm is issued; otherwise, an alarm is issued. A camera facing the movement trajectory of the stop block may be provided on the support frame 1 to collect the movement of the stop block 4 and better monitor the stop block 4. Furthermore, in low-light environments, LED supplementary lights may be provided for assistance.

[0029] Please see Figure 1-2In one embodiment of this utility model, a limiting structure 9 may be provided on the support frame 1. The limiting structure 9 is disposed on the rotation path of the rotating member 2 and is used to limit the rotation angle of the rotating member 2. Specifically, the limiting structure 9 may include a limiting rod and a connecting rod. One end of the connecting rod is fixedly connected to the support frame 1, and the other end is fixedly connected to the limiting rod. The limiting rod is located on the movement trajectory of the rotating member 2. Further, limiting structures 9 are provided on both the upper and lower sides of the rotating member 2. By setting the limiting structure 9 to limit the rotation angle of the rotating member 2, excessive rotation of the rotating member 2 is avoided. At the same time, it is ensured that the rotating member 2 can rotate to the correct position when rotating downwards, and the wheel 6 is not excessively squeezed. Further, a trigger structure may be provided on the limiting rod. When the rotating member 2 contacts the limiting rod, the power source 3 stops. Limit control can also be performed by a motor encoder.

[0030] The working principle of this utility model: In normal operation, the stop block 4 is detached from the ground and not in contact with the wheel 6. When the dummy trolley needs to stop, a trigger mechanism, such as a button, can be set at the target position, or a button can be set on the dummy trolley itself. When the dummy trolley moves to the target position and presses the button, or when the button on the dummy trolley is pressed manually, the power source 3 starts, driving the rotating component 2 to rotate, which in turn moves the stop block 4 downwards until the stop block 4 is under the wheel 6. When the wheel 6 presses on the stop block 4, the pressure sensor 7 is triggered and reaches the pressure threshold, thus issuing a positioning signal (green indicator light illuminates). Conversely, if no pressure signal is detected within 3 seconds, an alarm signal is issued (red indicator light illuminates, and a buzzer sounds). When the dummy trolley needs to move, the controller starts the power source 3 to drive the rotating component 2 to rotate in the opposite direction, causing the stop block 4 to detach from the ground and return to its initial position.

[0031] As an example, the specific operation process includes the following steps: 1. Start-up preparation Check if the power indicator light on the control box is on (to confirm that the power supply is normal), and check if the connection cables of pressure sensor 7, camera, and motor are secure.

[0032] Press the "Power Switch" and the control box will enter standby mode, with the screen displaying "Ready".

[0033] 2. Perform a stop operation.

[0034] Press the "Start" button, and the control box will drive the electric shaft to start rotating. The screen will simultaneously display "Shaft is rotating" and the camera will start recording the process. The rotating component 2 will drive the stop block 4 to rotate towards the wheel 6 until the mechanical limit is triggered (or the sensor 7 detects pressure).

[0035] 3. Status Judgment and Feedback

[0036] If pressure sensor 7 detects pressure (≥ threshold) within 3 seconds: the screen displays "Lock in place," the green indicator light stays on, and a "beep" sound is emitted. The camera stops recording and saves the video. If no pressure is detected within 3 seconds: the screen displays "Not in place," the red indicator light flashes, the buzzer sounds continuously, and the camera continues recording (until manually stopped).

[0037] 4. Release the stop

[0038] Pressing the "Reset Button" causes the control box to drive rotating component 2 to rotate in the opposite direction, disengaging stop block 4 from wheel 6 and returning it to its initial position. Once in place, the screen displays "Reset," the indicator light goes out, and the system returns to standby mode.

[0039] 5. Exception Handling

[0040] If jamming occurs during operation (motor overload), the control box will automatically stop rotating, the screen will display "Fault," and the red indicator light will remain on. The system must be restarted after troubleshooting. Pressing and holding the "Emergency Stop" button will forcibly cut off the motor power supply in case of emergencies.

[0041] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

[0042] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A stopping device for a dummy trolley, characterized in that, include: Support frame (1), the support frame (1) is fixedly mounted on the vehicle frame (5); Rotating component (2), one end of which is rotatably connected to the support frame (1); Power source (3), which is fixedly mounted on the support frame (1), is used to drive the rotating part (2) to rotate; Stop block (4), which is fixedly installed at the other end of the rotating part (2), is located on the outside of the wheel (6) of the dummy trolley.

2. The stopping device for a dummy trolley according to claim 1, characterized in that, It is also equipped with a controller for controlling the start and stop of the power source (3).

3. A stop device for a dummy trolley according to claim 2, characterized in that, The controller is located inside the control box, and the control box is fixedly mounted on the support frame (1).

4. A stop device for a dummy trolley according to claim 3, characterized in that, A pressure sensor (7) is provided on one side of the stop block (4) near the wheel (6), and the pressure sensor (7) is connected to the controller.

5. A stop device for a dummy trolley according to claim 4, characterized in that, The pressure sensor (7) is covered with a rubber layer (8).

6. A stop device for a dummy trolley according to claim 5, characterized in that, An alarm is also installed on the control box.

7. A stop device for a dummy trolley according to claim 1, characterized in that, The support frame (1) is equipped with a camera facing the movement trajectory of the stopper.

8. A stop device for a dummy trolley according to claim 1, characterized in that, The stop block (4) includes a flat surface for contacting the ground and a stop surface for contacting the wheel (6), wherein the distance between the stop surface near the wheel (6) and the flat surface is smaller than the distance between the other end of the stop surface and the flat surface.

9. A stop device for a dummy trolley according to claim 8, characterized in that, The stop surface is an arc surface.

10. A stop device for a dummy trolley according to claim 1, characterized in that, The support frame (1) is provided with a limiting structure (9), which is set on the rotation path of the rotating part (2) to limit the rotation angle of the rotating part (2).

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