Vehicle roll-over prevention mechanism

Abstract

This invention discloses a vehicle anti-rollover mechanism, relating to the field of vehicle anti-rollover technology, comprising: a linkage component and a wheel connector; the linkage component includes a mounting cavity, within which a drive shaft and a driven shaft are rotatably mounted, the drive shaft and the driven shaft being linked; the wheel connector is mounted on the driven shaft, and two driven wheels are respectively mounted on both sides of the wheel connector; the drive shaft is connected to the front frame of the tricycle; when the invention is used, when the tricycle turns, the front frame rotates, and the drive shaft rotates along with the front frame, the drive shaft and the mounting cavity rotating relative to each other, and then the first bevel gear causes two second bevel gears to rotate, causing the two driven shafts to rotate, causing the inner driven wheel to tilt upwards, while the outer driven wheel moves downwards, the two driven wheels always remain in close contact with the ground, during the turning process, except for the rotation of the front frame, the other parts of the vehicle body always remain stable, making the tricycle less prone to rollover.

Description

Technical Field

[0001] This invention relates to the field of vehicle rollover prevention technology, specifically a vehicle rollover prevention mechanism. Background Technology

[0002] Electric tricycles are three-wheeled transport vehicles powered by batteries and driven by motors for hauling goods or people. They use tubular, high-capacity, left and right lined, deep-discharge, and traction batteries, which can meet the requirements of continuous discharge during long-term operation. The batteries can be used normally for two years without reducing their capacity. Electric tricycles are divided into various models according to their uses, including household, freight, and factory types.

[0003] In the prior art, when an electric tricycle is driven, the two rear wheels rotate at a high speed. This causes the tricycle to tilt inward due to centrifugal force when turning, and the outer wheel is prone to leaving the ground, making it easy to overturn or skid, posing a safety hazard. To solve the above problems, Chinese patent "202121874310.8" discloses an anti-rollover device for an electric tricycle, which includes a vehicle body. Auxiliary mechanisms are provided on both sides inside the vehicle body. The auxiliary mechanisms include a rear tire, which is located on one side of the bottom of the vehicle body. A brake pad is provided on one side of the rear tire. A fixing plate is fixedly installed on one side of the brake pad. A connecting plate is fixedly installed on one side of the fixing plate. A fixing column is fixedly installed on one side of the connecting plate. This electric tricycle anti-rollover device, through the design of its auxiliary mechanism, works by using a liquid mechanism. When the driver begins to turn, the inertia of the vehicle causes the liquid to move, pushing the sealing plate. The movement of the sealing plate moves the fixing column, which in turn moves the connecting plate, which in turn moves the fixing plate. The movement of the fixing plate then moves the brake pads, creating friction and slowing down the rear tires. This facilitates speed control and can prevent rollover to some extent during turns. However, because it prevents rollover by slowing down the tricycle during turns, it not only limits the tricycle's speed but also, in cases of rapid speed or sharp turns, the aforementioned structure can cause a sharp decrease in the tricycle's speed, potentially causing passengers or cargo to lurch forward and creating a danger.

[0004] In view of this, there is an urgent need for a vehicle rollover prevention mechanism. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention solves this problem using the following technical structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A vehicle anti-rollover mechanism includes a front frame and two driven wheels, and further includes: a linkage assembly and a wheel connector;

[0008] The linkage component includes a mounting cavity, in which a drive shaft and a driven shaft are rotatably disposed. The drive shaft and the driven shaft are linked, wherein when the drive shaft rotates, the driven shaft rotates in the opposite direction to the drive shaft.

[0009] The wheel connector is mounted on the driven axle, and the two driven wheels are respectively mounted on both sides of the wheel connector;

[0010] The drive shaft is connected to the front frame of the tricycle, wherein when the vehicle turns, the front frame rotates and the drive shaft rotates.

[0011] Its further feature is that,

[0012] There are two driven shafts, which are coaxially arranged. A second bevel gear is coaxially arranged on each of the two driven shafts. A first bevel gear is coaxially arranged on the driving shaft. The first bevel gear meshes with both second bevel gears.

[0013] The wheel connector includes two rocker arms respectively disposed at two driven shafts at opposite ends, and the two driven wheels are rotatably mounted on the suspended ends of the two rocker arms respectively.

[0014] The mounting cavity is also rotatably provided with a transition shaft, and a third bevel gear is coaxially provided at one end of the transition shaft. The third bevel gear meshes with both second bevel gears.

[0015] The linkage assembly also includes two drive shafts coaxially disposed in the mounting cavity, and a sixth bevel gear is coaxially disposed on each of the two drive shafts.

[0016] The driven shaft is coaxially arranged with the driving shaft. A fourth bevel gear is coaxially arranged on the driven shaft, and the fourth bevel gear meshes with two sixth bevel gears. A fifth bevel gear is coaxially arranged on the driving shaft, and the fifth bevel gear meshes with two sixth bevel gears.

[0017] The wheel connector is a connecting beam, which is installed on the suspension end of the driven shaft, and the two driven wheels are respectively rotatably mounted on both ends of the connecting beam.

[0018] A control cavity is also provided on one side of the mounting cavity, and a first limiting component for limiting the rotation of the drive shaft is provided in the control cavity.

[0019] The first limiting component includes a connector, an arc-shaped chuck, and a rotating component. The connector is connected to the drive shaft. The chuck is disposed on the annular surface of the connector and has multiple slots. The rotating component is rotatably disposed within the control cavity, and its end has a locking head that matches the slots.

[0020] The first limiting component also includes a rotating rod, a pull rope, and a second limiting component for limiting the movement of the pull rope. One end of the rotating rod is connected to a rotating component, and the other end is connected to one end of the pull rope, which extends outside the control cavity.

[0021] The second limiting component includes a mounting box, a torsion block, a torsion spring, and a third limiting component for limiting the rotation of the torsion block. The mounting box is mounted on the tricycle, the torsion block is rotatably mounted on the mounting box, the suspension end of the pull rope is connected to the annular surface of the torsion block, and the torsion spring is mounted on the mounting box for resetting the torsion block.

[0022] The third limiting component includes a sliding plate, a first spring, and a control component for resetting the sliding plate. The sliding plate is slidably disposed in the mounting box. The annular surface of the torsion block has a slot adapted to the sliding plate. The first spring is installed in the mounting box for sliding the sliding plate. The torsion block is provided with a torsion plate to facilitate rotation of the torsion block.

[0023] The control component includes a button and a second spring. Both the button and the second spring are installed in the mounting box. The second spring is used to reset the button. One end of the button is provided with a first abutting slope that is away from the torsion block. The slide plate is provided with a through hole. One side of the through hole is a second abutting slope that is adapted to the first abutting slope.

[0024] The following beneficial effects can be achieved by using the structure described above in this invention:

[0025] When the tricycle turns, the front frame rotates, and the drive shaft rotates along with the front frame. The drive shaft rotates relative to the mounting cavity, and then the first bevel gear causes the two second bevel gears to rotate, causing the two driven shafts to rotate. This causes the inner driven wheel to tilt upwards, while the outer driven wheel moves downwards. Therefore, when turning, the two driven wheels always remain in close contact with the ground. During the turn, apart from the rotation of the front frame, the other parts of the vehicle body remain stable, making the tricycle less prone to tipping over. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure in Example 1;

[0027] Figure 2 This is a schematic diagram of the internal structure of the mounting cavity and control cavity in Example 1;

[0028] Figure 3 This is a schematic diagram of the structure of the control cavity and the second limiting component in this application;

[0029] Figure 4 This is a schematic diagram of the relevant structures inside the control cavity in this application;

[0030] Figure 5This is a schematic diagram of the structure of the second limiting component and the pull rope in this application;

[0031] Figure 6 This is a schematic diagram of the structure of the button and the slide in this application;

[0032] Figure 7 This is a structural cross-sectional view of the second limiting component in this application;

[0033] Figure 8 This is a schematic diagram of the structure of Example 2;

[0034] Figure 9 This is a schematic diagram of the internal structure of the mounting cavity and control cavity in Example 2.

[0035] In the diagram: 1. Mounting cavity; 11. Drive shaft; 111. Fifth bevel gear; 12. Driven shaft; 121. Fourth bevel gear; 2. Connecting beam; 3. Rocker arm; 4. First bevel gear; 5. Second bevel gear; 6. Transition shaft; 61. Third bevel gear; 7. Control cavity; 71. Connecting piece; 72. Chuck; 721. Slot; 73. Rotating component; 731. Chuck head; 74. Rotating rod; 75. Pull rope; 8. Second limiting component; 81. Mounting box; 82. Torsion block; 821. Bay; 822. Torsion plate; 83. Torsion spring; 84. First spring; 85. Button; 851. First contact slope; 86. Second spring; 87. Slide plate; 871. Through hole; 872. Second contact slope; 9. Drive shaft; 91. Sixth bevel gear. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. 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 should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product or device.

[0038] Example 1, Reference Figure 1-2 The vehicle anti-rollover mechanism shown includes a front frame and two driven wheels, and also includes a linkage assembly and wheel connectors;

[0039] The linkage component includes a mounting cavity 1 (the mounting cavity is positioned not to be fixedly connected to the front frame of the tricycle so that when the front frame turns, the drive shaft 11 rotates relative to the mounting cavity 1). The drive shaft 11 and the driven shaft 12 are rotatably arranged inside the mounting cavity 1. The drive shaft 11 and the driven shaft 12 are linked. When the drive shaft 11 rotates, the driven shaft 12 rotates in the opposite direction to the rotation of the drive shaft 11.

[0040] The wheel connector is mounted on the driven axle 12, and two driven wheels are mounted on both sides of the wheel connector respectively;

[0041] The drive shaft 11 is connected to the front frame of the tricycle (indirectly or directly), wherein when the vehicle turns, the front frame rotates and the drive shaft 11 rotates.

[0042] There are two driven shafts 12, which are coaxially arranged. A second bevel gear 5 is coaxially arranged on each of the two driven shafts 12. A first bevel gear 4 is coaxially arranged on the drive shaft 11. The first bevel gear 4 meshes with both second bevel gears 5 (in actual use, the end of the drive shaft 11 is located on one side between the two driven shafts 12, and the axial direction of the drive shaft 11 is perpendicular to the axial direction of the two driven shafts 12).

[0043] The wheel connector includes two rocker arms 3 respectively located at opposite ends of two driven shafts 12. Two driven wheels are rotatably mounted on the suspension ends of the two rocker arms 3. The two rocker arms 3 and the mounting cavity 1 form a U-shaped frame.

[0044] The installation cavity 1 is also rotatably equipped with a transition shaft 6, and a third bevel gear 61 is coaxially mounted on one end of the transition shaft 6. The third bevel gear 61 meshes with two second bevel gears 5.

[0045] In actual use, by setting the transition shaft 6 and the third bevel gear 61, a transition function is provided to maintain the stability of the first bevel gear 4 and the two second bevel gears 5.

[0046] Based on the above structure, when the tricycle turns, the front frame rotates, and the drive shaft 11 rotates together with the front frame. The drive shaft 11 rotates relative to the mounting cavity 1, and then the first bevel gear 4 causes the two second bevel gears 5 to rotate, causing the two driven shafts 12 to rotate (the two driven shafts 12 rotate in opposite directions). This causes the driven wheel 31 on the inner side (inner side of the curve) to tilt upwards, while the driven wheel on the outer side moves downwards. Therefore, when turning, the two driven wheels 31 always keep close to the ground. During the turning process, except for the rotation of the front frame, the other parts of the vehicle body always remain stable, making it difficult for the tricycle to tip over.

[0047] In addition to the embodiments described above, this application also includes Embodiment Two, as referred to Figure 8-9As shown, the difference is that the linkage assembly also includes two drive shafts 9 coaxially arranged in the mounting cavity 1. The two drive shafts 9 are arranged between the driving shaft 11 and the driven shaft 12 (the driving shaft 11, the driven shaft 12 and the two drive shafts 9 all point to the same point). A sixth bevel gear 91 is coaxially arranged on each of the two drive shafts 9 (the two drive shafts 9 are used for transmission, which plays a transmission role and makes the system more stable).

[0048] Driven shaft 12 and drive shaft 11 are coaxially arranged. A fourth bevel gear 121 is coaxially arranged on driven shaft 12. The fourth bevel gear 121 meshes with two sixth bevel gears 91. A fifth bevel gear 111 is coaxially arranged on drive shaft 11. The fifth bevel gear 111 meshes with two sixth bevel gears 91.

[0049] The wheel connector is a connecting beam 2, which is installed on the suspension end of the driven shaft 12. The two driven wheels are respectively rotatably mounted at both ends of the connecting beam 2.

[0050] In Embodiment 2, two driven wheels are installed on both sides of the connecting beam 2. When turning, the drive shaft 11 rotates and the driven shaft 12 rotates in the opposite direction, causing the inner driven wheel to lift up and the outer driven wheel to fall down, thus keeping the vehicle stable.

[0051] Further optimization is made to the reference. Figure 2-4 As shown, a control cavity 7 is also provided on one side of the mounting cavity 1. The control cavity 7 is provided with a first limiting component for limiting the rotation of the drive shaft 11. The first limiting component includes a connector 71, an arc-shaped chuck 72, and a rotating component 73. The connector 71 is connected to the drive shaft 11. The chuck 72 is provided on the annular surface of the connector 71 and has multiple slots 721. The rotating component 73 is rotatably disposed in the control cavity 7. The end of the rotating component 73 is provided with a locking head 731 that is adapted to the slot 721. The rotating component 73 rotates, causing the locking head 731 to be inserted into or removed from one of the slots 721. The first limiting component also includes a rotating rod 74, a pull rope 75, and a second limiting component 8 for limiting the movement of the pull rope 75. One end of the rotating rod 74 is connected to the rotating component 73, and the other end is connected to one end of the pull rope 75. The pull rope 75 extends to the outside of the control cavity 7.

[0052] In actual use, on roads with few curves, small curve angles, and smooth surfaces, the anti-rollover mechanism is often deactivated (fixing the front frame to the rest of the vehicle body) to maintain greater vehicle stability. In this case, pulling the pull rope 75 outwards rotates the lever 74 and the rotating component 73, causing the locking head 731 to engage in the slot 721, preventing the drive shaft 11 from rotating and thus locking the mechanism, effectively deactivating the anti-rollover mechanism. When it is necessary to restore the device's function, the pull rope 75 is in the [position missing]. In the released state, when the vehicle turns, the chuck 72 exerts pressure on the chuck head 731, causing the chuck head 731 (with a chamfer at the end) to disengage from the chuck groove 721, causing the drive shaft 11 to rotate together with the front frame, thus preventing rollover. (In actual use, another method is to install an elastic element (such as a torsion spring) in the control cavity 7 to reset the rotating part 73, so that after the pull rope 75 is released, the elastic element resets the rotating part 73, causing the chuck head 731 to disengage from the chuck groove 721.)

[0053] Further optimization is made to the reference. Figure 5-7 The second limiting component 8 includes a mounting box 81, a torsion block 82, a torsion spring 83, and a third limiting component for limiting the rotation of the torsion block 82. The mounting box 81 is mounted on the tricycle, and the torsion block 82 is rotatably mounted on the mounting box 81. The torsion block 82 is provided with a torsion plate 2 to facilitate its rotation. The suspension end of the pull rope 75 is connected to the annular surface of the torsion block 82. The torsion spring 83 is mounted on the mounting box 81 to reset the torsion block 82. The third limiting component includes a sliding plate 87, a first spring 84, and a control component for resetting the sliding plate 87. The sliding plate 87 is slidably mounted on the mounting box 81. Inside the mounting box 81, the annular surface of the torsion block 82 is provided with a slot 821 that is adapted to the slide plate 87. The first spring 84 is installed inside the mounting box 81 to make the slide plate 87 slide. The control component includes a button 85 and a second spring 86. Both the button 85 and the second spring 86 are installed inside the mounting box 81. The second spring 86 is used to reset the button 85. One end of the button 85 is provided with a first abutting inclined surface 851 that is opposite to the torsion block 82. The slide plate 87 is provided with a through hole 871. One side of the through hole 871 is a second abutting inclined surface 872 that is adapted to the first abutting inclined surface 851.

[0054] In actual use, when it is necessary to close the anti-rollover mechanism, by rotating the toggle block 82 (at this time, part of the pull rope 75 is wrapped around the toggle block 82, which serves to pull the pull rope 75 out of the control cavity 7), the slide plate 87 slides in the mounting box 81 under the action of the first spring 84. When the end of the slide plate 87 is locked in the slot 821, the toggle block 82 is fixed, keeping the anti-rollover function open. When it is necessary to close the anti-rollover function, press the button 85, so that the first abutting inclined surface 851 abuts the second abutting inclined surface 872, so that the slide plate 87 slides and the end of the slide plate 87 is disengaged from the slot 821. At this time, the toggle block 82 is reset under the action of the torsion spring 83, so that the pull rope 75 is reset. Then, release the button 85, and the button 85 is reset.

[0055] The above are merely preferred embodiments of this application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations that are directly derived or conceived by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included within the protection scope of the present invention.

Claims

1. A vehicle anti-rollover mechanism, comprising a front frame and two driven wheels, characterized in that, Also includes: Linkage components and wheel connectors; The linkage component includes a mounting cavity (1), in which a drive shaft (11) and a driven shaft (12) are rotatably disposed. The drive shaft (11) and the driven shaft (12) are linked. When the drive shaft (11) rotates, the driven shaft (12) rotates in the opposite direction to the drive shaft (11). The wheel connector is mounted on the driven shaft (12), and the two driven wheels are respectively mounted on both sides of the wheel connector; The drive shaft (11) is connected to the front frame of the tricycle, wherein when the vehicle turns, the front frame rotates and the drive shaft (11) rotates. The linkage assembly also includes two drive shafts (9) coaxially disposed in the mounting cavity (1), and a sixth bevel gear (91) is coaxially disposed on each of the two drive shafts (9). The driven shaft (12) is coaxially arranged with the driving shaft (11). A fourth bevel gear (121) is coaxially arranged on the driven shaft (12), and the fourth bevel gear (121) meshes with two sixth bevel gears (91). A fifth bevel gear (111) is coaxially arranged on the driving shaft (11), and the fifth bevel gear (111) meshes with two sixth bevel gears (91). The wheel connector is a connecting beam (2), which is installed on the suspension end of the driven shaft (12), and the two driven wheels are respectively rotatably disposed at both ends of the connecting beam (2); A control cavity (7) is also provided on one side of the mounting cavity (1), and a first limiting component for limiting the rotation of the drive shaft (11) is provided in the control cavity (7). The first limiting component includes a connector (71), an arc-shaped chuck (72), and a rotating component (73). The connector (71) is connected to the drive shaft (11). The chuck (72) is disposed on the annular surface of the connector (71). The chuck (72) is provided with a plurality of slots (721). The rotating component (73) is rotatably disposed in the control cavity (7). The end of the rotating component (73) is provided with a chuck head (731) that is adapted to the slot (721). The first limiting component also includes a rotating rod (74), a pull rope (75), and a second limiting component (8) for limiting the movement of the pull rope (75). One end of the rotating rod (74) is connected to a rotating member (73), and the other end is connected to one end of the pull rope (75), which extends outside the control cavity (7).

2. The vehicle anti-rollover mechanism according to claim 1, characterized in that: The second limiting component (8) includes a mounting box (81), a torsion block (82), a torsion spring (83), and a third limiting component for limiting the rotation of the torsion block (82). The mounting box (81) is mounted on the tricycle, the torsion block (82) is rotatably mounted on the mounting box (81), the suspension end of the pull rope (75) is connected to the annular surface of the torsion block (82), and the torsion spring (83) is mounted on the mounting box (81) for resetting the torsion block (82).

3. A vehicle anti-rollover mechanism according to claim 2, characterized in that: The third limiting component includes a sliding plate (87), a first spring (84), and a control component for resetting the sliding plate (87). The sliding plate (87) is slidably disposed in the mounting box (81). The annular surface of the torsion block (82) is provided with a slot (821) adapted to the sliding plate (87). The first spring (84) is installed in the mounting box (81) for sliding the sliding plate (87). The torsion block (82) is provided with a torsion plate (822) for facilitating the rotation of the torsion block (82).

4. A vehicle anti-rollover mechanism according to claim 3, characterized in that: The control component includes a button (85) and a second spring (86). Both the button (85) and the second spring (86) are installed in the mounting box (81). The second spring (86) is used to reset the button (85). One end of the button (85) is provided with a first abutting slope (851) that is away from the torsion block (82). The slide plate (87) is provided with a through hole (871). One side of the through hole (871) is a second abutting slope (872) that is adapted to the first abutting slope (851).

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