Vehicle door opening prevention device based on laser sensor
By using a laser sensor ranging drive device to close an unclosed car door, the problem of collision damage caused by an unsecured or open door is solved, achieving safe and efficient door closing.
Patent Information
- Application Number
- CN202423039969.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing automobile assembly lines, during the door installation process, the doors may not be properly secured or may be opened, leading to collisions with safety barriers, damage, or personal safety accidents.
The device employs a laser sensor-based anti-door opening mechanism. It calculates the door status by measuring distance with a laser beam, drives the sliding plate and rollers to close the unclosed door, uses the rotation of the rollers to avoid friction damage, and uses a reset component to prevent door deformation.
Effectively close any unclosed vehicle doors to prevent them from colliding with and damaging the barriers, ensuring production safety and preventing personal injury.
Smart Images
Figure CN223647642U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of automobile assembly line, and in particular relates to a door opening prevention device based on a laser sensor. Background Technology
[0002] The automobile assembly workshop integrates a high-efficiency conveyor line, along which components such as the car body and doors are precisely assembled, realizing rapid assembly line production. The car body moves steadily forward on the conveyor line, and key components such as doors are precisely connected and installed, ensuring that each car has excellent quality and high production efficiency.
[0003] Existing automobile assembly lines have several drawbacks. For example, after the doors are installed on the car body on the conveyor line, they may sometimes be open due to improper fastening or other reasons. If the door is open when passing through a safety barrier in a width-restricted non-human-operated area, it can cause damage to the door and the barrier due to interference and collision. Furthermore, if personnel are trapped between the open and open barriers, it could lead to a safety accident. Therefore, we propose a laser sensor-based anti-door-opening device. Utility Model Content
[0004] The purpose of this invention is to provide a vehicle door opening prevention device based on a laser sensor to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a vehicle door opening prevention device based on a laser sensor, comprising:
[0006] Two fixed frames are provided, and two sliding grooves are provided on the side of the two fixed frames that are close to each other. A sliding plate is slidably installed in the sliding groove. Guide grooves are provided on the upper and lower sides of the sliding groove. Guide posts that are fixed to the corresponding sliding plates are slidably installed in the guide grooves.
[0007] Two drive components are located on two fixed frames respectively and are used to drive the four sliding plates to slide.
[0008] Four limiting grooves are respectively opened in four sliding plates. A sliding strip is slidably installed in the limiting groove. One end of the sliding strip extends through the limiting groove to the outside and is fixedly installed with a fixing strip. A fixing frame is fixedly installed on one side of the fixing strip. Several rollers are rotatably installed on the fixing frame.
[0009] Four sets of reset components are located in four sliding plates and are used to reset the sliding of the four sliding bars respectively.
[0010] Two laser sensor bodies are fixedly installed in two fixed frames, and a control motherboard is fixedly installed in each fixed frame.
[0011] In this technical solution, when the vehicle body passes the two laser sensor bodies, the two laser sensor bodies emit laser beams and receive the reflected signals. The distance is calculated by measuring the time difference or phase difference of the round trip of the laser beams. When the car door is not closed, the laser beams will not reflect along the expected path. At this time, the two laser sensor bodies send signals to the two control main boards respectively. Through the set drive components, the sliding block can be moved. At the same time, the sliding block moves the sliding plate and the corresponding two guide pillars. Through the set guide grooves and guide pillars, the guide pillars slide towards the vehicle body. The guide pillars drive the sliding plate to gradually approach the vehicle body during the sliding process. Then, the sliding plate drives several rollers to squeeze the car door, so that the unclosed car door is closed. At the same time, several rollers will rotate to avoid excessive friction and damage to the car door. After the car door is closed, the car door will squeeze several rollers to slide. Several rollers drive the fixing bracket, fixing strip and sliding strip to slide. Through the set reset components, the sliding of the sliding strip can be reset to avoid the several rollers squeezing too much and deforming the car door.
[0012] In the above technical solution, the driving component further includes:
[0013] Two sliding grooves are respectively opened in two sliding plates, and a sliding block is slidably installed in each sliding groove.
[0014] The motor is fixedly mounted on one side of the fixed frame, and the output shaft of the motor is fixedly mounted with a threaded rod. One end of the threaded rod passes through the fixed frame, two sliding grooves, and two sliding blocks, and the threaded rod is threadedly connected to the two sliding blocks.
[0015] In this technical solution, when the vehicle body passes the two laser sensor bodies, the two laser sensor bodies emit laser beams and receive the reflected signals. The distance is calculated by measuring the time difference or phase difference of the round trip of the laser beams. When the car door is not closed, the laser beams will not be reflected along the expected path. At this time, the two laser sensor bodies send signals to the two control boards respectively. The two control boards start the motors respectively. The motors are powered on and drive the threaded rod to rotate. Under the action of the thread, the threaded rod drives the sliding block to move closer to the motor. At the same time, the sliding block drives the sliding plate and the corresponding two guide posts to move. Through the set guide grooves and guide posts, the guide posts slide towards the vehicle body. The guide posts drive the sliding plate to gradually move closer to the vehicle body during the sliding process. At the same time, the sliding block slides in the corresponding sliding groove. Then the sliding plate drives several rollers to squeeze the car door, so that the unclosed car door is closed. At the same time, several rollers will rotate to avoid friction and damage to the car door.
[0016] In the above technical solution, the reset component further includes:
[0017] A plurality of springs are fixedly installed on one side of the sliding bar, and the other end of each of the springs is fixed to the inner wall of the limiting groove.
[0018] In this technical solution, after the car door is closed, the car door will squeeze several rollers to slide towards the springs. The rollers will drive the fixing bracket, fixing strip and sliding strip to slide. At the same time, several springs will be squeezed and contracted to prevent the rollers from being squeezed too much and causing the car door to deform.
[0019] In the above technical solution, further, the rollers are distributed at equal intervals.
[0020] In this technical solution, several rollers are ensured to close the car door.
[0021] In the above technical solution, the threaded rod is further rotatably connected to the corresponding fixed frame and the two corresponding sliding grooves.
[0022] In this technical solution, the output shaft of the motor can rotate within the fixed frame and the two sliding grooves.
[0023] In the above technical solution, furthermore, a rubber layer is fixedly installed on the circumferential sidewalls of several of the rollers.
[0024] In this technical solution, the rubber layer further prevents the car door from being damaged by excessive pressure.
[0025] In the above technical solution, the sliding bar, the corresponding fixing bar, and the corresponding fixing frame are integrally formed, the two laser sensor bodies are electrically connected to the two control motherboards respectively, and the two control motherboards are electrically connected to the two motors respectively.
[0026] In this technical solution, the sliding strip, the fixing strip, and the fixing frame are ensured to be integrally formed.
[0027] The beneficial effects of this utility model are:
[0028] 1. This laser sensor-based anti-door-opening device works by having the vehicle body pass two laser sensor bodies. The two laser sensor bodies emit laser beams and receive the reflected signals. The distance is calculated by measuring the time difference or phase difference between the round trip of the laser beams. When the door is not closed, the laser beams cannot reflect along the expected path. At this time, the two laser sensor bodies send signals to two control boards respectively. Through the set drive components, the sliding block can be moved, and the sliding block moves the sliding plate and the corresponding two guide pillars. Through the set guide grooves and guide pillars, the guide pillars slide towards the vehicle body. The guide pillars drive the sliding plate to gradually approach the vehicle body during the sliding process. Subsequently, the sliding plate drives several rollers to squeeze the door, causing the unclosed door to close.
[0029] 2. In this laser sensor-based anti-door opening device, several rollers rotate to prevent excessive friction from damaging the door. After the door is closed, the door will squeeze several rollers to slide. These rollers will drive the fixing frame, fixing strip, and sliding strip to slide. Through the set reset component, the sliding strip can be reset to prevent the door from deforming due to excessive squeezing by the rollers. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0031] Figure 2 This is one of the schematic diagrams of the cross-sectional structure of the fixed frame of this utility model;
[0032] Figure 3 This is the second schematic diagram of the cross-sectional structure of the fixed frame of this utility model;
[0033] Figure 4 This is a schematic diagram of the cross-sectional structure of the sliding plate of this utility model.
[0034] The markings in the diagram are as follows:
[0035] 1. Fixed frame; 2. Sliding groove one; 3. Sliding plate; 4. Guide groove; 5. Guide post; 6. Limiting groove; 7. Sliding bar; 8. Fixed bar; 9. Fixed bracket; 10. Roller; 11. Sliding groove two; 12. Sliding block; 13. Motor; 14. Threaded rod; 15. Spring; 16. Laser sensor body; 17. Control main board; 18. Rubber layer. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0037] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0038] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0039] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0040] It should be noted that, in this application, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0041] Example 1:
[0042] Please see Figure 1 - Figure 4 As shown, this embodiment provides a vehicle door opening prevention device based on a laser sensor, including:
[0043] Two fixed frames 1, two sliding grooves 2 are opened on the side of the two fixed frames 1 that are close to each other, and a sliding plate 3 is slidably installed in the sliding groove 2. Guide grooves 4 are opened on the upper and lower sides of the sliding groove 2, and guide posts 5 fixed to the corresponding sliding plates 3 are slidably installed in the guide grooves 4.
[0044] Two drive components are located on two fixed frames 1 respectively, and are used to drive the four sliding plates 3 to slide.
[0045] Four limiting grooves 6 are respectively opened in four sliding plates 3. A sliding strip 7 is slidably installed in the limiting groove 6. One end of the sliding strip 7 extends through the limiting groove 6 to the outside and is fixedly installed with a fixing strip 8. A fixing frame 9 is fixedly installed on one side of the fixing strip 8. Several rollers 10 are rotatably installed on the fixing frame 9.
[0046] Four sets of reset components are located in the four sliding plates 3 respectively, and are used to reset the sliding of the four sliding bars 7 respectively;
[0047] Two laser sensor bodies 16 are fixedly installed in two fixed frames 1 respectively, and a control motherboard 17 is fixedly installed in the fixed frame 1.
[0048] When the vehicle body passes the two laser sensor bodies 16, the two laser sensor bodies 16 emit laser beams and receive the reflected signals. The distance is calculated by measuring the time difference or phase difference of the round trip of the laser beams. When the car door is not closed, the laser beam will not be reflected along the expected path. At this time, the two laser sensor bodies 16 send signals to the two control main boards 17 respectively. Through the set drive components, the sliding block 12 can be moved. At the same time, the sliding block 12 moves the sliding plate 3 and the corresponding two guide posts 5. Through the set guide groove 4 and guide posts 5, the guide posts 5 slide towards the vehicle body. The guide posts 5 drive the sliding plate 3 to gradually move closer to the vehicle body during the sliding process. Then the sliding plate 3 drives several rollers 10 to squeeze the car door, so that the unclosed car door is closed. At the same time, several rollers 10 will rotate to avoid excessive friction and damage to the car door. After the car door is closed, the car door will squeeze several rollers 10 to slide. Several rollers 10 drive the fixing frame 9, fixing strip 8 and sliding strip 7 to slide. Through the set reset component, the sliding of the sliding strip 7 can be reset to avoid the several rollers 10 from excessively squeezing and deforming the car door.
[0049] In this embodiment, the driving component includes:
[0050] Two sliding grooves 11 are respectively opened in two sliding plates 3, and sliding blocks 12 are slidably installed in the sliding grooves 11.
[0051] Motor 13 is fixedly installed on one side of fixed frame 1, and a threaded rod 14 is fixedly installed on the output shaft of motor 13. One end of threaded rod 14 passes through fixed frame 1, two sliding grooves 2 and two sliding blocks 12. Threaded rod 14 is threadedly connected to two sliding blocks 12.
[0052] When the vehicle body passes the two laser sensor bodies 16, the two laser sensor bodies 16 emit laser beams and receive the reflected signals. The distance is calculated by measuring the time difference or phase difference of the round trip of the laser beams. When the car door is not closed, the laser beam will not be reflected along the expected path. At this time, the two laser sensor bodies 16 send signals to the two control main boards 17 respectively. The two control main boards 17 start the motors 13 respectively. The motors 13 are powered on and drive the threaded rod 14 to rotate. Under the action of the thread, the threaded rod 14 drives the sliding block 12 to move closer to the motor 13. At the same time, the sliding block 12 drives the sliding plate 3 and the corresponding two guide posts 5 to move. Through the set guide groove 4 and guide post 5, the guide post 5 slides towards the vehicle body. The guide post 5 drives the sliding plate 3 to gradually move closer to the vehicle body during the sliding process. At the same time, the sliding block 12 slides in the corresponding sliding groove 11. Then the sliding plate 3 drives several rollers 10 to squeeze the car door, so that the car door is closed. At the same time, the several rollers 10 will rotate to avoid friction and damage to the car door.
[0053] In this embodiment, the reset component includes:
[0054] Several springs 15 are fixedly installed on one side of the sliding bar 7, and the other end of each spring 15 is fixed to the inner wall of the limiting groove 6.
[0055] When the car door is closed, it will squeeze several rollers 10 to slide towards the spring 15. The rollers 10 will drive the fixing frame 9, fixing strip 8 and sliding strip 7 to slide. At the same time, the springs 15 will be compressed and contracted to prevent the rollers 10 from being over-compressed and causing the car door to deform.
[0056] Example 2:
[0057] This embodiment provides a vehicle door opening prevention device based on a laser sensor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0058] In this embodiment, several rollers 10 are distributed at equal intervals.
[0059] This includes ensuring that several rollers 10 can close the doors.
[0060] Example 3:
[0061] This embodiment provides a vehicle door opening prevention device based on a laser sensor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0062] In this embodiment, the threaded rod 14 is rotatably connected to the corresponding fixed frame 1 and the two corresponding sliding grooves 2.
[0063] The output shaft of motor 13 can rotate within the fixed frame 1 and the two sliding grooves 2.
[0064] Example 4:
[0065] This embodiment provides a vehicle door opening prevention device based on a laser sensor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0066] In this embodiment, a rubber layer 18 is fixedly installed on the circumferential sidewalls of several rollers 10.
[0067] The rubber layer 18 further prevents the door from being damaged by excessive pressure.
[0068] Example 5:
[0069] This embodiment provides a vehicle door opening prevention device based on a laser sensor, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0070] In this embodiment, the sliding bar 7, the corresponding fixing bar 8, and the corresponding fixing frame 9 are integrally formed. The two laser sensor bodies 16 are electrically connected to the two control motherboards 17 respectively, and the two control motherboards 17 are electrically connected to the two motors 13 respectively.
[0071] Specifically, the sliding bar 7, the fixed bar 8, and the fixed frame 9 are integrally formed, ensuring that the two laser sensor bodies 16 can send signals to the two control motherboards 17 respectively, and ensuring that the two control motherboards 17 can start the two motors 13 respectively.
[0072] Working principle: When the vehicle body passes the two laser sensor bodies 16, the two laser sensor bodies 16 emit laser beams and receive the reflected signals. The distance is calculated by measuring the time difference or phase difference of the round trip of the laser beams. When the car door is not closed, the laser beam will not be reflected along the expected path. At this time, the two laser sensor bodies 16 send signals to the two control main boards 17 respectively. The two control main boards 17 start the motors 13 respectively. The motors 13 are powered on and drive the threaded rod 14 to rotate. Under the action of the thread, the threaded rod 14 drives the sliding block 12 to move closer to the motor 13. At the same time, the sliding block 12 drives the sliding plate 3 and the corresponding two guide posts 5 to move. Through the set guide groove 4 and guide post 5 This causes the guide post 5 to slide towards the vehicle body. The guide post 5 drives the sliding plate 3 to gradually approach the vehicle body during the sliding process. At the same time, the sliding block 12 slides in the corresponding sliding groove 11. Then, the sliding plate 3 drives several rollers 10 to squeeze the door, causing the unclosed door to close. At the same time, several rollers 10 will rotate to avoid friction and damage to the door. The rubber layer 18 further prevents the door from being damaged by excessive pressure. After the door is closed, the door will squeeze several rollers 10 to slide towards the spring 15. Several rollers 10 drive the fixing bracket 9, fixing strip 8 and sliding strip 7 to slide. At the same time, several springs 15 are compressed and contracted to prevent the several rollers 10 from being over-compressed and deforming the door.
[0073] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A vehicle door opening prevention device based on a laser sensor, characterized in that, include: Two fixed frames (1) are provided. Two sliding grooves (2) are provided on the side of the two fixed frames (1) that are close to each other. A sliding plate (3) is slidably installed in the sliding groove (2). Guide grooves (4) are provided on the upper and lower sides of the sliding groove (2). Guide posts (5) that are fixed to the corresponding sliding plates (3) are slidably installed in the guide grooves (4). Two drive components are located on two fixed frames (1) respectively, and are used to drive the four sliding plates (3) to slide. Four limiting grooves (6) are respectively opened in four sliding plates (3). A sliding strip (7) is slidably installed in the limiting groove (6). One end of the sliding strip (7) extends through the limiting groove (6) to the outside and is fixedly installed with a fixing strip (8). A fixing frame (9) is fixedly installed on one side of the fixing strip (8). Several rollers (10) are rotatably installed on the fixing frame (9). Four sets of reset components are located in four sliding plates (3) respectively, and are used to reset the sliding of the four sliding bars (7); Two laser sensor bodies (16) are fixedly installed in two fixed frames (1), and a control motherboard (17) is fixedly installed in the fixed frame (1).
2. The anti-door opening device based on a laser sensor according to claim 1, characterized in that, The driving component includes: Two sliding grooves (11) are respectively opened in two sliding plates (3), and a sliding block (12) is slidably installed in the sliding groove (11); The motor (13) is fixedly installed on one side of the fixed frame (1), and the output shaft of the motor (13) is fixedly installed with a threaded rod (14). One end of the threaded rod (14) passes through the fixed frame (1), two sliding grooves (2) and two sliding blocks (12), and the threaded rod (14) is threadedly connected to the two sliding blocks (12).
3. The anti-door opening device based on a laser sensor according to claim 2, characterized in that, The reset component includes: A plurality of springs (15) are fixedly installed on one side of the sliding bar (7), and the other end of the plurality of springs (15) is fixed to the inner wall of the limiting groove (6).
4. The anti-door opening device based on a laser sensor according to claim 1, characterized in that, The rollers (10) are distributed at equal intervals.
5. A vehicle door opening prevention device based on a laser sensor according to claim 2, characterized in that, The threaded rod (14) is rotatably connected to the corresponding fixed frame (1) and the two corresponding sliding grooves (2).
6. The anti-door opening device based on a laser sensor according to claim 1, characterized in that, A rubber layer (18) is fixedly installed on the circumferential sidewall of several of the rollers (10).
7. The anti-door opening device based on a laser sensor according to claim 1, characterized in that, The sliding bar (7), the corresponding fixing bar (8), and the corresponding fixing frame (9) are integrally formed.
8. A vehicle door opening prevention device based on a laser sensor according to claim 2, characterized in that, The two laser sensor bodies (16) are electrically connected to the two control motherboards (17) respectively, and the two control motherboards (17) are electrically connected to the two motors (13) respectively.