Safety door for electrical control device of maintenance vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YOUYI MACHINERY TECH
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-14
AI Technical Summary
When the protective door of the maintenance vehicle is used in dusty and muddy environments, dust can easily accumulate and enter the device, affecting its service life.
An electrical protection assembly including a cleaning mechanism and a heat dissipation mechanism was designed. The assembly uses a servo motor to drive the roller and the cleaning roller to clean the outside of the protective door. It combines a bidirectional air pump and a duct to remove dust and dissipate heat. The protective door only needs to be in contact with the outside on one side, which saves power resources and reduces the entry of dust.
Effective cleaning of the outside of the protective door reduces the possibility of dust entering the device, extends the device's service life, and improves its practicality and reliability.
Smart Images

Figure CN224494826U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical protection technology and relates to a safety door of an electrical control device for a maintenance vehicle. Background Technology
[0002] A maintenance vehicle is a specialized vehicle used for the maintenance and upkeep of infrastructure such as roads, bridges, and tunnels. It integrates mechanical, hydraulic, and electronic control technologies to perform functions such as road surface repair, crack treatment, and guardrail cleaning, with the aim of improving maintenance efficiency and reducing labor costs.
[0003] The following technical problems were found in the existing technology: the working environment of maintenance vehicles is generally on roads, bridges, or tunnels. These working environments are full of dust and mud. When the protective door of the maintenance vehicle protects the internal electronic components in such an environment, dust may accumulate on its surface. When the protective door is closed, this dust will enter the device and thus affect the service life of the device. Utility Model Content
[0004] The technical problem this utility model aims to solve is that maintenance vehicles typically operate in environments such as roads, bridges, or tunnels, which are filled with dust and mud. When the protective doors of maintenance vehicles protect the internal electronic components in such environments, dust may accumulate on their surfaces. When the protective doors are closed, this dust can enter the device and thus affect its service life.
[0005] The present invention relates to a safety door for an electrical control device of a maintenance vehicle, comprising a maintenance vehicle body, a winding chamber fixedly connected to one side inside the maintenance vehicle body, and a servo motor fixedly connected to one end outside the winding chamber.
[0006] An electrical protection assembly is located inside the take-up compartment. The electrical protection assembly includes a cleaning mechanism and a heat dissipation mechanism, which work together.
[0007] The electrical protection components include a protective door and a roller. The output end of the servo motor is fixedly connected to the roller, which rotates inside the winding chamber. A protective door is provided on the outside of the winding chamber and is slidably connected to the inside of the maintenance vehicle body.
[0008] The cleaning mechanism includes a rotating gear A, a rotating gear B, a sweeping roller, a drag roller, a dust collection chamber, and a two-way air pump. A drag roller is rotatably connected inside the maintenance vehicle body near the protective door, and the drag roller cooperates with the protective door. A rotating gear A is fixedly connected to the end of the drag roller. A sweeping roller is rotatably connected inside the maintenance vehicle body near the drag roller, and the sweeping roller cooperates with the protective door. A rotating gear B is fixedly connected to the end of the sweeping roller, and the rotating gear B meshes with the rotating gear A. A dust collection chamber is located inside the maintenance vehicle body near the protective door. A two-way air pump is fixedly connected to the top of the outer side of the take-up chamber, and the two-way air pump is connected to the dust collection chamber.
[0009] The heat dissipation mechanism includes an air duct, a filter plate, and a signal transmitter. An air duct is provided on the side of the bidirectional air pump away from the dust collection chamber. A filter plate is fixedly connected to the end of the air duct away from the bidirectional air pump. A signal transmitter is fixedly connected to the bottom of the protective door.
[0010] A camera device body is fixedly connected to the outside of the maintenance vehicle body near the protective door. An electric wire is fixedly connected to the outside of the camera device body. A power supply body is fixedly connected to the end of the electric wire away from the camera device body. A rotation sensor is rotatably connected to the outside of the rotating gear B. A data transmission wire is provided on the outside of the rotation sensor. The end of the data transmission wire away from the rotation sensor is electrically connected to the electric wire.
[0011] The maintenance vehicle body has an installation groove on its outer side near the protective door. A claw is slidably connected inside the installation groove. A threaded hole is opened inside the claw. A screw is threaded inside the threaded hole. A countersunk plate is provided on the outside of the screw.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By using the heat dissipation mechanism and the cleaning mechanism, the side of the protective door facing the working environment can be cleaned. In actual use, only one side of the protective door is in contact with the outside, so only one side needs to be cleaned. Then, through the cooperation of rotating gear A and rotating gear B, there is no need to apply an additional drive source to the sweeping roller, saving power resources. At the same time, by sweeping the outside of the protective door, the possibility of external dust and dirt entering the body of the maintenance vehicle and the inside of the winding compartment is reduced, further improving the service life of the device and improving its practicality.
[0013] By inserting the claws into the mounting slots and then rotating the screws inside the maintenance vehicle body, the countersunk plate protects and limits the screws, sinking them to the bottom of the countersunk plate and reducing the likelihood of screws protruding. Positioning the screws inside the maintenance vehicle body also reduces the need for external removal. The claws limit the safety door, increasing the stability and reliability of the device. The use of the camera unit and power supply unit allows for taking photos of workers when they open the safety door, and provides backup power during power outages, further enhancing the device's practicality and reliability. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a structural schematic diagram of the main body of the maintenance vehicle of this utility model.
[0016] Figure 2 This is a structural schematic diagram of the protective door of this utility model.
[0017] Figure 3 This is a schematic diagram of the roll receiving compartment of this utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the filter plate of this utility model.
[0019] Figure 5 This is a schematic diagram of the servo motor of this utility model.
[0020] Figure 6 This is a schematic diagram of the structure of the chuck claw of this utility model.
[0021] Figure 7 This is a utility model Figure 4 Enlarged view of point A.
[0022] In the diagram: 1. Main body of the maintenance vehicle; 2. Protective door; 3. Rewind compartment; 4. Servo motor; 5. Roller; 6. Rotating gear A; 7. Rotating gear B; 8. Sweeping roller; 9. Drag roller; 10. Dust collection compartment; 11. Two-way air pump; 12. Air duct; 13. Filter plate; 14. Power supply unit; 15. Wire; 16. Camera unit; 17. Rotation sensor; 18. Data transmission cable; 19. Claw; 20. Threaded hole; 21. Mounting slot; 22. Screw; 23. Countersunk plate; 24. Signal transmitter. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0025] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] Example 1
[0028] like Figure 1 - Figure 7 As shown, a maintenance vehicle electrical control device safety door includes a maintenance vehicle body 1, a winding chamber 3 is fixedly connected to one side of the interior of the maintenance vehicle body 1, and a servo motor 4 is fixedly connected to one end of the outer side of the winding chamber 3.
[0029] An electrical protection component is located inside the winding chamber 3. The electrical protection component includes a cleaning mechanism and a heat dissipation mechanism, which work together.
[0030] The electrical protection assembly includes a protective door 2 and a roller 5. The output end of the servo motor 4 is fixedly connected to the roller 5, which rotates inside the take-up chamber 3. A protective door 2 is provided on the outside of the take-up chamber 3 and is slidably connected to the inside of the maintenance vehicle body 1. The cleaning mechanism includes a rotating gear A6, a rotating gear B7, a sweeping roller 8, a drag roller 9, a dust collection chamber 10, and a two-way air pump 11. A drag roller 9 is rotatably connected to the inside of the maintenance vehicle body 1 near the protective door 2. The drag roller 9 is connected to the protective door 2. The protective doors 2 cooperate with each other. The end of the drag roller 9 is fixedly connected to a rotating gear A6. The cleaning roller 8 is rotatably connected inside the maintenance vehicle body 1 near the drag roller 9. The cleaning roller 8 cooperates with the protective door 2. The end of the cleaning roller 8 is fixedly connected to a rotating gear B7. The rotating gear B7 meshes with the rotating gear A6. The dust collection chamber 10 is opened inside the maintenance vehicle body 1 near the protective door 2. The top of the outer side of the winding chamber 3 is fixedly connected to a bidirectional air pump 11. The bidirectional air pump 11 is connected to the dust collection chamber 10.
[0031] The heat dissipation mechanism includes an air duct 12, a filter plate 13, and a signal transmitter 24. The air duct 12 is provided on the side of the bidirectional air pump 11 away from the dust collection chamber 10. The filter plate 13 is fixedly connected to the end of the air duct 12 away from the bidirectional air pump 11. The signal transmitter 24 is fixedly connected to the bottom of the protective door 2.
[0032] During operation, the device is first connected to an external power source to provide driving force to the internal electrical components. Then, it is connected to an external control system to precisely control the different internal parts. The external control system is existing technology and should be well known to those skilled in the art, so it will not be described in detail in this technical solution.
[0033] The winding chamber 3 is installed inside the main body 1 of the maintenance vehicle. Then, the protective door 2 and the winding roller 5 are installed inside the winding chamber 3. The rotation of the servo motor 4 is controlled to make the winding roller 5 wind up the protective door 2. When the winding roller 5 releases the protective door 2, the protective door 2 closes the main body 1 of the maintenance vehicle, thus protecting the internal devices of the main body 1 of the maintenance vehicle. When the staff needs to operate the internal devices of the main body 1 of the maintenance vehicle, the servo motor 4 is driven to drive the winding roller 5 to wind up the protective door 2, so that the main body 1 of the maintenance vehicle can be opened to operate the internal parts of the main body 1 of the maintenance vehicle.
[0034] During the release and rewinding of the protective door 2, the protective door 2 remains in close contact with the roller 9. The roller 9 provides good support and guidance for the movement of the protective door 2. Therefore, the roller 9 rotates during the opening and closing of the protective door 2. During the rotation of the roller 9, the camera device body 16 at its outer end drives the rotating gear B7 to start rotating. The rotating gear B7 drives the cleaning roller 8 to clean the side of the protective door 2 that is in direct contact with the external working environment. Through the cleaning roller 8, the side of the protective door 2 that is in contact with the external working environment is cleaned, reducing the possibility of dirt entering the maintenance vehicle body 1 and the rewinding chamber 3 with the protective door 2 when it is rewinding, thus reducing the impact on the internal devices of the maintenance vehicle body 1.
[0035] While the cleaning roller 8 rotates to clean the outer side of the protective door 2, the bidirectional air pump 11 is driven to start blowing air. The airflow generated is blown outward by the dust collection chamber 10. The dirt raised by the cleaning roller 8 is blown into the external environment, reducing the dust raised during the cleaning process and causing it to drift into the winding chamber 3. This further reduces the impact of external dust on the winding chamber 3 and the internal devices of the maintenance vehicle body 1, and further improves the practicality of the device.
[0036] When the protective door 2 completely protects the maintenance vehicle body 1, the bottom of the protective door 2 is squeezed, sending a control signal to adjust the blowing direction of the bidirectional air pump 11. The bidirectional air pump 11 with adjustable blowing direction is prior art and should be well known to those skilled in the art, so it will not be described in detail in this technical solution. After the blowing direction of the bidirectional air pump 11 is adjusted, the bidirectional air pump 11 and the air duct 12 are connected. The generated airflow enters the interior of the maintenance vehicle body 1 through the air duct 12 and the filter plate 13, cooling the interior of the maintenance vehicle body 1 and filtering the airflow at the same time, reducing the impact of some small solid particles in the airflow on the internal mechanics of the maintenance vehicle body 1, and further increasing the practicality of the device.
[0037] By using a heat dissipation mechanism and a cleaning mechanism, the side of the protective door 2 facing the working environment is cleaned. In actual use, only one side of the protective door 2 is in contact with the outside, so only one side needs to be cleaned. Then, through the cooperation of the rotating gear A6 and the rotating gear B7, there is no need to apply an additional drive source to the sweeping roller 8, saving power resources. At the same time, by cleaning the outside of the protective door 2, the possibility of external dust and dirt entering the maintenance vehicle body 1 and the winding chamber 3 is reduced, further improving the service life of the device and enhancing its practicality.
[0038] Example 2
[0039] like Figure 1 - Figure 7 As shown, a camera device body 16 is fixedly connected to the outside of the maintenance vehicle body 1 near the protective door 2. A wire 15 is fixedly connected to the outside of the camera device body 16. A power supply body 14 is fixedly connected to the end of the wire 15 away from the camera device body 16. A rotation sensor 17 is rotatably connected to the outside of the rotating gear B7. A data transmission wire 18 is provided on the outside of the rotation sensor 17. The end of the data transmission wire 18 away from the rotation sensor 17 is electrically connected to the wire 15.
[0040] The maintenance vehicle body 1 has an installation groove 21 on its outer side near the protective door 2. A claw 19 is slidably connected inside the installation groove 21. A threaded hole 20 is opened inside the claw 19. A screw 22 is threaded inside the threaded hole 20. A countersunk plate 23 is provided on the outside of the screw 22.
[0041] During operation, when the protective door 2 is opened, the rotating gear B7 begins to rotate. The rotation is detected by the rotation sensor 17, and the data is transmitted to the inside of the wire 15 through the rotation sensor 17. The power supply unit 14 drives the camera device unit 16 to take pictures of the personnel opening the door. Taking pictures and recording the personnel opening the door further increases the safety inside the maintenance vehicle body 1. The power supply unit 14 is independent of the external power supply, which reduces the risk of the maintenance vehicle body 1 being completely powered off. The camera device unit 16 still has power to take pictures, further improving the safety and reliability of the device.
[0042] Insert the claw 19 into the mounting slot 21, and then install the screw 22 inside the maintenance vehicle body 1 by rotation. The countersunk plate 23 protects and limits the screw 22, and sinks the screw 22 into the bottom of the countersunk plate 23, reducing the possibility of the screw 22 protruding. The screw 22 is set inside the maintenance vehicle body 1, reducing the possibility of it being removed from the outside. The claw 19 limits the protective door 2, increasing the stability and reliability of the device.
[0043] By using the camera unit 16 and the power supply unit 14, the device can take photos of staff when they open the protective door 2. In the event of a power outage, the power supply unit 14 provides backup power, further improving the practicality and reliability of the device.
[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A safety door for an electrical control device of a maintenance vehicle, characterized in that: The vehicle includes a maintenance vehicle body (1), a winding chamber (3) is fixedly connected to one side inside the maintenance vehicle body (1), and a servo motor (4) is fixedly connected to one end outside the winding chamber (3). An electrical protection component is located inside the winding compartment (3). The electrical protection component includes a cleaning mechanism and a heat dissipation mechanism, which work together. The electrical protection components include a protective door (2) and a roller (5). The output end of the servo motor (4) is fixedly connected to the roller (5). The roller (5) rotates inside the winding chamber (3). The outer side of the winding chamber (3) is provided with a protective door (2). The protective door (2) is slidably connected to the inner side of the maintenance vehicle body (1).
2. The safety door of the electrical control device for a maintenance vehicle according to claim 1, characterized in that: The cleaning mechanism includes a rotating gear A (6), a rotating gear B (7), a sweeping roller (8), a drag roller (9), a dust collection chamber (10), and a two-way air pump (11). The drag roller (9) is rotatably connected to the inside of the maintenance vehicle body (1) near the protective door (2). The drag roller (9) cooperates with the protective door (2). The end of the drag roller (9) is fixedly connected to the rotating gear A (6). The sweeping roller (8) is rotatably connected to the inside of the maintenance vehicle body (1) near the drag roller (9). The sweeping roller (8) cooperates with the protective door (2). The end of the sweeping roller (8) is fixedly connected to the rotating gear B (7). The rotating gear B (7) meshes with the rotating gear A (6). The dust collection chamber (10) is opened inside the maintenance vehicle body (1) near the protective door (2). The top of the outer side of the winding chamber (3) is fixedly connected to the two-way air pump (11). The two-way air pump (11) is connected to the dust collection chamber (10).
3. The safety door of the electrical control device for a maintenance vehicle according to claim 2, characterized in that: The heat dissipation mechanism includes an air duct (12), a filter plate (13), and a signal transmitter (24). The air duct (12) is provided on the side of the bidirectional air pump (11) away from the dust collection chamber (10). The filter plate (13) is fixedly connected to the end of the air duct (12) away from the bidirectional air pump (11). The signal transmitter (24) is fixedly connected to the bottom of the protective door (2).
4. The safety door of the electrical control device for a maintenance vehicle according to claim 2, characterized in that: A camera device body (16) is fixedly connected to the outside of the maintenance vehicle body (1) near the protective door (2). A wire (15) is fixedly connected to the outside of the camera device body (16). A power supply body (14) is fixedly connected to the end of the wire (15) away from the camera device body (16). A rotation sensor (17) is rotatably connected to the outside of the rotating gear B (7). A data transmission wire (18) is provided on the outside of the rotation sensor (17). The end of the data transmission wire (18) away from the rotation sensor (17) is electrically connected to the wire (15).
5. The safety door of the electrical control device for a maintenance vehicle according to claim 1, characterized in that: The maintenance vehicle body (1) has an installation groove (21) on the outside near the protective door (2). A claw (19) is slidably connected inside the installation groove (21). A threaded hole (20) is opened inside the claw (19). A screw (22) is threaded inside the threaded hole (20). A countersunk plate (23) is provided on the outside of the screw (22).