Anti-collision device for parking

Abstract

The application discloses a parking anti-collision device, which comprises mounting assemblies installed at the two ends of the tail of the chassis of a car, anti-collision bases connected to the bottom of the two mounting assemblies, firing mechanisms installed at the front side of the anti-collision bases, contact mechanisms installed at the front end of the firing mechanisms, collision switches arranged in the anti-collision bases, and expansion mechanisms arranged in the contact mechanisms. The expansion mechanism comprises two expansion plates arranged in an up-down mode, a plurality of sets of return springs arranged between the two expansion plates, a guide inclined groove formed in the end of the expansion plate close to the firing mechanism, a supporting lifting and retracting rod connected to the contact mechanism, a supporting seat assembly connected to the lifting and retracting rod of the supporting lifting and retracting rod, and the supporting seat assembly matched with the two guide inclined grooves arranged in an up-down mode. The above structure can fully protect the car from mechanical collision in different parking environments, and can also cooperate with the parking radar to provide double parking protection.

Description

Technical Field

[0001] This invention relates to the field of automotive protection technology, specifically to a parking collision avoidance device. Background Technology

[0002] In today's society, cars are becoming increasingly popular as a primary means of transportation. The increasing number of cars leads to a growing need for parking spaces. However, the growth rate of parking spaces cannot keep up with the growth rate of cars. As a result, many cars cannot park in designated parking spaces and have to park in unplanned areas. These temporary parking areas are often quite complex, including areas with dense pipes and areas with messy ground conditions. Parking in these areas can affect the car's ability to park. Even if existing cars have reversing radars, these radars have a limited detection angle. When reversing into a complex environment, some obstacles may be located in the blind spots of the reversing radar, making it easy to damage the car during reversing. These obstacles include steps, low-lying pipes, and other low-height obstacles.

[0003] like Figure 9 As shown, Chinese Patent (CN108657094B) discloses an anti-collision device, including a crossbar, a spring sleeve, a guide rod, a spring, an anti-collision beam support rod, an anti-collision beam, a collision switch, and a mounting bracket. This device combines the guide rod and the collision switch, resulting in a simple structure that enables immediate stopping or other countermeasures upon collision. This structure can be applied to the parking process of a car. However, the device has a drawback: it only uses a strip-shaped arc-shaped base plate for protection. When reversing into a complex environment, some obstacles may be located in the blind spots of the arc-shaped base plate, potentially damaging the car during reversing. These obstacles include steps, low-lying pipes, and low-height obstacles. Therefore, a parking anti-collision device is needed to solve these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a parking collision avoidance device that expands the protection range by setting an expansion mechanism, thereby solving the problem that obstacles located in the dead corners of the curved base plate cannot be protected.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A parking anti-collision device includes mounting components installed at both ends of the rear of a vehicle chassis. The bottom of the two mounting components are connected to an anti-collision base. A firing mechanism is installed on the front side of the anti-collision base. A contact mechanism is installed at the front end of the firing mechanism. A collision switch is installed inside the anti-collision base. An expansion mechanism is installed inside the contact mechanism.

[0007] The expansion mechanism includes two expansion plates distributed vertically, with multiple sets of return springs between the two expansion plates. A guide groove is provided at the end of the expansion plate near the firing mechanism. A support telescopic rod is connected to the contact mechanism, and a support seat assembly is connected to the telescopic rod. The support seat assembly cooperates with the two guide grooves.

[0008] As a further embodiment of the present invention: the mounting assembly includes a slide block welded to the rear chassis of the vehicle, a slide plate slidably mounted in the slide block, a toothed groove on the top surface of the slide plate, a rotating shaft rotatably mounted between the two slide blocks, movable gears symmetrically mounted on the rotating shaft, the movable gears meshing with the toothed grooves at corresponding positions, and a drive motor mounted on the outer surface of one slide block, the drive motor being connected to the rotating shaft.

[0009] As a further aspect of the present invention: the anti-collision base includes a base body, the internal space of the base body is an installation cavity, a protective base plate is installed at the bottom of the base body by bolts, and a collision switch is installed inside the installation cavity.

[0010] As a further aspect of the present invention: the firing mechanism includes two fixed bushings connected to both ends of the base body by mounting nuts, a movable guide rod is slidably connected in the fixed bushings, one end of the movable guide rod is connected to a connecting rod, and the other end is connected to a firing rod.

[0011] As a further embodiment of the present invention: a limiting slide cavity is provided at one end of the fixed bushing, and a buffer reset cavity is provided at the other end. The buffer reset cavity is connected to the limiting slide cavity. A limiting platform is provided on the movable guide rod. The limiting platform slides inside the limiting slide cavity. A buffer spring is provided in the buffer reset cavity and is sleeved on the firing rod.

[0012] As a further aspect of the present invention: the contact mechanism includes an arc-shaped substrate, with connecting blocks symmetrically arranged at both ends of the inner side of the arc-shaped substrate, and a horizontally arranged connecting frame connected to the inner side of the arc-shaped substrate, with an expansion mechanism connected to the connecting frame.

[0013] As a further aspect of the present invention: a connecting groove is provided on the inner side of the arc-shaped substrate, and an ejector rod is provided in the connecting groove in the middle. The support base assembly includes a trapezoidal support base body, a through ejector groove is provided on the support base body, vertical ejector blocks are symmetrically installed in the ejector groove, and a top groove is provided in the middle of the front side of the support base body, the size of which is adapted to the ejector rod.

[0014] As a further aspect of the present invention: two limiting grooves are symmetrically opened in the middle of the ejection groove, a limiting part is provided on the vertical ejection block, and the limiting part is located in the corresponding limiting groove, and an ejection spring is provided between the limiting part and the limiting groove.

[0015] The beneficial effects of this invention are:

[0016] 1. The present invention has an expansion mechanism inside the contact mechanism to expand the contact area in complex parking environments, fully sense obstacles, and from a physical perspective, avoid the car paint from contacting obstacles during parking.

[0017] 2. This invention drives a motor to rotate a shaft, which in turn drives two moving gears to rotate, thereby causing two sliding plates to move laterally, extending out of or retracting into the bottom of the car, thus achieving the function of preventing collisions when parking. It also makes the entire structure intelligently retractable and convenient to use.

[0018] 3. The present invention has an ejector rod in the middle connecting groove that cooperates with the support base assembly to increase the length of the support and further increase the opening angle of the two expansion plates to achieve a larger protection range. Specifically, when the support base assembly is pushed into place, the ejector rod extends into the top groove and squeezes the two vertical ejector blocks, causing the two vertical ejector blocks to extend out and increase the squeezing of the expansion plates to expand the opening angle of the two expansion plates. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the anti-collision base of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the firing mechanism of the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of the connection between the contact mechanism and the expansion mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the expanded structure of the expansion mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the expansion plate structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the contact structure between the ejector rod and the support base assembly of the present invention;

[0027] Figure 8 This is a schematic diagram of the installation component structure of the present invention;

[0028] Figure 9 This is a schematic diagram of an anti-collision structure in existing technology.

[0029] In the diagram: 1. Anti-collision base; 11. Base body; 12. Mounting cavity; 13. Protective base plate; 2. Firing mechanism; 21. Fixed bushing; 22. Mounting nut; 23. Movable guide rod; 24. Limiting slide cavity; 25. Buffer reset cavity; 26. Limiting platform; 27. Firing rod; 28. Connecting rod; 29. ​​Buffer spring; 3. Contact mechanism; 31. Arc-shaped base plate; 32. Connecting block; 33. Connecting frame; 34. Connecting groove; 4. Expansion mechanism; 41. Expansion plate; 42. Return spring; 43. Guide sloping groove; 44. Support telescopic rod; 45. Support seat assembly; 46. Ejector rod; 451. Ejector groove; 452. Vertical ejector block; 453. Ejector spring; 5. Mounting assembly; 51. Slide plate; 52. Slide seat; 53. Moving gear; 6. Collision switch. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1-8 As shown, this is a parking collision avoidance device. The device includes mounting components 5 installed at both ends of the rear of the vehicle chassis. The two mounting components 5 are symmetrically arranged, and a collision avoidance base 1 is connected to the bottom of the two mounting components 5. A firing mechanism 2 is installed on the front side of the collision avoidance base 1, and a contact mechanism 3 is installed at the front end of the firing mechanism 2. The contact mechanism 3 physically contacts the obstacle during the parking process, pushing the firing mechanism 2 to activate the collision switch 6 installed inside the collision avoidance base 1. The collision switch 6 sends relevant signals to the vehicle's processor, thereby controlling the vehicle to perform emergency stop or other corresponding actions, thereby reducing the problem of damage to the vehicle from collisions with obstacles during parking. Furthermore, the contact mechanism 3 is provided with an expansion mechanism 4 to expand the contact area in complex parking environments, fully sense obstacles, and comprehensively avoid contact between the vehicle paint and obstacles during parking from a physical perspective.

[0032] like Figure 1 and Figure 8As shown, both mounting components 5 include a slide block 52 welded to the rear chassis of the vehicle. A slide plate 51 is slidably mounted in each of the two slide blocks 52. The top surface of the slide plate 51 is provided with a toothed groove, and a working cavity is provided inside the slide block 52. A rotating shaft is rotatably arranged between the two slide blocks 52. The two ends of the rotating shaft are located in the two working cavities respectively, and a moving gear 53 is installed in each of the corresponding working cavities. The moving gear 53 meshes with the toothed groove at the corresponding position. One end of the rotating shaft is also connected to a drive motor provided on the outer surface of one of the slide blocks 52. The drive motor drives the rotating shaft to rotate, which in turn drives the two moving gears 53 to rotate, thereby causing the two slide plates 51 to move laterally, extending out of the bottom of the vehicle or retracting into the bottom of the vehicle, to achieve the function of preventing collisions when parking.

[0033] Further, such as Figure 1 and Figure 2 As shown, the aforementioned anti-collision base 1 is welded to the bottom of the front end of the two sliding plates 51. The anti-collision base 1 includes a base body 11, which has a semi-I-shaped structure with the opening facing downwards. The internal space of the base body 11 is the mounting cavity 12. A protective base plate 13 is bolted to the bottom of the base body 11 to protect the collision switch 6 installed inside the mounting cavity 12, preventing the collision switch 6 from being triggered by other external factors, which could lead to an emergency stop and safety issues.

[0034] like Figures 1-3 As shown, the firing mechanism 2 installed on the anti-collision base 1 includes two fixed bushings 21 connected to both ends of the base body 11 by mounting nuts 22. Each fixed bushing 21 has a movable guide rod 23 slidably connected to it. One end of each movable guide rod 23 is connected to a connecting rod 28, and the two connecting rods 28 are connected to the contact mechanism 3. The other end of each movable guide rod 23 is connected to a firing rod 27, which is also slidably installed on the fixed bushing 21 near the mounting cavity 12. Furthermore, a limiting sliding cavity 24 is formed at one end of each fixed bushing 21, and the other end... A buffer reset cavity 25 is provided, which is connected to the limiting slide cavity 24. A limiting platform 26 is provided on a section of the axial surface of the movable guide rod 23 located inside the limiting slide cavity 24. The limiting platform 26 slides inside the limiting slide cavity 24 to limit the movement of the movable guide rod 23 and prevent excessive firing from damaging the collision switch 6. A buffer spring 29 is provided in the buffer reset cavity 25. The buffer spring 29 is sleeved on the firing rod 27 to play a buffering role. In addition, after the stop is completed, the movable guide rod 23 is pushed back to its original position for easy use in the next stop.

[0035] Further such as Figure 1 , Figure 4 and Figure 5As shown, the contact mechanism 3 connected to the firing mechanism 2 includes an arc-shaped base plate 31. Connecting blocks 32 are symmetrically arranged at both ends of the inner side of the arc-shaped base plate 31. The two connecting blocks 32 are fixedly connected to the top of the connecting rod 28 of the firing mechanism 2 by bolts. Furthermore, a horizontally arranged connecting frame 33 is connected to the inner side of the arc-shaped base plate 31. An expansion mechanism 4 is connected to the connecting frame 33. Multiple sets of connecting grooves 34 are equally spaced on the inner side of the arc-shaped base plate 31. The connecting grooves 34 are connected to the expansion mechanism 4 through connecting shafts. Furthermore, an elastic collision layer is provided on the outer side of the arc-shaped base plate 31. The elastic collision layer is made of rubber.

[0036] like Figure 1 and Figures 4-7 As shown, the expansion mechanism 4 connected to the contact mechanism 3 includes two expansion plates 41 rotatably connected to the arc-shaped base plate 31 and distributed vertically. The two expansion plates 41 are symmetrically arranged vertically, and the outer surfaces of the two expansion plates 41 are also provided with rubber-supported collision layers. Both expansion plates 41 can rotate in the connecting groove 34 via a rotating shaft. The top surfaces of the two expansion plates 41 are arc-shaped, consistent with the curvature of the outer surface of the arc-shaped base plate 31. Furthermore, multiple sets of return springs 42 are provided between the two expansion plates 41 to facilitate the re-combination of the opened return springs 42. A guide groove 43 is provided at the end of the expansion plate 41 near the firing mechanism 2. Furthermore, a support telescopic rod 44 is connected to the connecting frame 33. A support seat assembly 45 is connected to the telescopic rod of the support telescopic rod 44. The support seat assembly 45 cooperates with the upper and lower guide grooves 43. When the support telescopic rod 44 is activated, it pushes the two expansion plates 41 to open, expanding and increasing the protection range, further ensuring sufficient protection in different parking environments.

[0037] Furthermore, to further increase the opening angle of the two expansion plates 41, an ejector rod 46 is provided in the middle connecting groove 34 to cooperate with the support base assembly 45, increasing the length of the support and further enhancing the opening angle of the two expansion plates 41. For example... Figure 8As shown, the support base assembly 45 includes a trapezoidal support base body with a through ejector groove 451. Two symmetrically positioned limiting grooves are formed in the middle of the ejector groove 451. Vertical ejector blocks 452 are symmetrically installed in the ejector groove 451, each with a limiting portion located within its corresponding limiting groove. An ejector spring 453 is also provided between the limiting portion and the limiting groove. A top groove is formed in the middle of the front side of the support base body, the size of which is adapted to the ejector rod 46. The front end of 46 is pointed. When the support assembly 45 is pushed into place, the ejector rod 46 extends into the top groove and squeezes the two vertical ejector blocks 452, causing the two vertical ejector blocks 452 to extend out and increase the squeezing of the expansion plate 41, so as to expand the opening angle of the two expansion plates 41. The vertical ejector blocks 452 and the ejector rod 46 are provided with matching inclined surfaces to facilitate squeezing and ejection. A squeezing inclined surface is also provided on the side of the head of the vertical ejector block 452 near the expansion plate 41 to facilitate stable squeezing of the expansion plate 41.

[0038] When reversing, the present invention activates a drive motor via the car's internal processor, which rotates two moving gears 53. These gears move the sliding plate 51, extending the entire mechanism beyond the rear of the car for mechanical protection during parking. It can also be used in conjunction with a reversing radar for comprehensive double protection. After extension, the support telescopic rod 44 is activated, pushing the support base assembly 45 to move. The support base assembly 45 presses against the expansion plates 41 located on the upper and lower sides, expanding the protective area. When the car collides with an obstacle while reversing, it presses against the connecting rod 28, which in turn pushes the movable guide rod 23 to move. The movable guide rod 23 pushes the firing rod 27 to move. After the firing rod 27 presses against the collision switch 6, the collision switch 6 sends relevant signals to the processor inside the car, thereby controlling the vehicle to perform emergency stop or other corresponding actions to avoid reversing and colliding with obstacles. Furthermore, during the opening of the expansion plate 41, there is a secondary expansion action. When the support assembly 45 is pushed into place, the ejector rod 46 extends into the top groove and presses the two vertical ejector blocks 452, causing the two vertical ejector blocks 452 to extend out and increase the pressure on the expansion plate 41 to expand the opening angle of the two expansion plates 41.

[0039] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "multiple" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

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

Claims

1. A parking anti-collision device, comprising mounting components (5) installed at both ends of the rear of a vehicle chassis, with anti-collision bases (1) connected to the bottom of the two mounting components (5), a firing mechanism (2) installed on the front side of the anti-collision base (1), a contact mechanism (3) installed at the front end of the firing mechanism (2), and a collision switch (6) provided inside the anti-collision base (1), characterized in that, The contact mechanism (3) has an expansion mechanism (4) inside; The expansion mechanism (4) includes two expansion plates (41) distributed vertically. Multiple sets of return springs (42) are provided between the two expansion plates (41). A guide groove (43) is provided at one end of the expansion plate (41) near the firing mechanism (2). A support telescopic rod (44) is connected to the contact mechanism (3). A support seat assembly (45) is connected to the telescopic rod of the support telescopic rod (44). The support seat assembly (45) cooperates with the two guide grooves (43). A connecting groove (34) is provided on the inner side of the arc-shaped substrate (31), and an ejector rod (46) is provided in the connecting groove (34) in the middle. The support base assembly (45) includes a support base body in the shape of a trapezoid. A through ejector groove (451) is provided on the support base body. Vertical ejector blocks (452) are symmetrically installed in the ejector groove (451). A top groove is provided in the middle of the front side of the support base body. The size of the top groove is adapted to the ejector rod (46). Two limiting grooves are symmetrically opened in the middle of the ejection groove (451). The vertical ejection block (452) is provided with a limiting part, and the limiting part is located in the corresponding limiting groove. An ejection spring (453) is provided between the limiting part and the limiting groove. Start the support telescopic rod (44) to push the support base assembly (45) to move. The support base assembly (45) squeezes the expansion plates (41) located on the upper and lower sides, opening the expansion plates (41) to expand the protective area. When the support base assembly (45) is pushed into place, the ejector rod (46) extends into the top groove and squeezes the two vertical ejector blocks (452), causing the two vertical ejector blocks (452) to extend out and increase the squeezing of the expansion plates (41) to expand the opening angle of the two expansion plates (41).

2. The anti-collision device for parking according to claim 1, characterized in that, The mounting component (5) includes a slide (52) welded to the rear chassis of the vehicle. A slide plate (51) is slidably mounted in the slide (52). The top surface of the slide plate (51) is provided with a toothed groove. A rotating shaft is rotatably arranged between the two slides (52). A moving gear (53) is symmetrically mounted on the rotating shaft. The moving gear (53) meshes with the toothed groove at the corresponding position. A drive motor is mounted on the outer side of one slide (52). The drive motor is connected to the rotating shaft.

3. A parking collision avoidance device according to claim 1, characterized in that, The anti-collision base (1) includes a base body (11), the interior space of the base body (11) is an installation cavity (12), a protective base plate (13) is installed at the bottom of the base body (11) by bolts, and a collision switch (6) is installed inside the installation cavity (12).

4. A parking collision avoidance device according to claim 3, characterized in that, The firing mechanism (2) includes two fixed bushings (21) connected to both ends of the base body (11) by mounting nuts (22). A movable guide rod (23) is slidably connected in the fixed bushings (21). One end of the movable guide rod (23) is connected to a connecting rod (28), and the other end is connected to a firing rod (27).

5. A parking collision avoidance device according to claim 4, characterized in that, A limiting slide cavity (24) is provided at one end of the fixed bushing (21), and a buffer reset cavity (25) is provided at the other end. The buffer reset cavity (25) is connected to the limiting slide cavity (24). A limiting platform (26) is provided on the movable guide rod (23). The limiting platform (26) slides inside the limiting slide cavity (24). A buffer spring (29) is provided in the buffer reset cavity (25). The buffer spring (29) is sleeved on the firing rod (27).

6. A parking collision avoidance device according to claim 1, characterized in that, The contact mechanism (3) includes an arc-shaped substrate (31), with connecting blocks (32) symmetrically arranged at both ends of the inner side of the arc-shaped substrate (31), and a horizontally arranged connecting frame (33) connected to the inner side of the arc-shaped substrate (31), and an expansion mechanism (4) connected to the connecting frame (33).

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