Side bucket steering auxiliary device of light side tricycle

Abstract

The invention discloses a side bucket steering auxiliary device of a light side tricycle, which comprises a two-wheeled frame and a side bucket frame which are connected with each other, a bucket body movably connected with the side bucket frame, and a positioning assembly arranged on the side bucket frame and used for limiting the movement of the bucket body, one side of the bucket body is movably connected with the two-wheeled frame, and the other side of the bucket body is movably connected with the side bucket frame. Therefore, centrifugal force of different steering angles can be adapted, and rollover can be prevented. The vehicle hopper body movably connected with the two-wheel vehicle frame and the vehicle hopper frame is arranged, a moving space is conveniently provided for the vehicle hopper body during instantaneous steering, meanwhile, the positioning assembly is arranged so that the vehicle hopper body can be conveniently driven to move back to be in the same direction with the vehicle hopper frame in time in the steering process, and the steering stability of the vehicle hopper body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tricycle manufacturing, and particularly relates to a sidecar turning assist device for a light sidecar tricycle. Background Art

[0002] A sidecar motorcycle has a two-wheel frame and a side frame, and its side wheel is installed on the side frame through a side rocker arm and a side wheel shaft. When turning a sidecar motorcycle, since the axis of the side wheel is between the front and rear wheels of the two-wheel frame and the side wheel cannot turn, the sidecar and the two-wheel frame cannot rotate around a single turning center at the moment of turning, and the people sitting in the sidecar will feel an obvious centrifugal force, resulting in poor riding stability. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is: to provide a sidecar turning assist device for a light sidecar tricycle that can reduce the influence of turning centrifugal force and improve the turning stability of the sidecar.

[0004] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a sidecar turning assist device for a light sidecar tricycle, including a two-wheel frame and a sidecar frame connected to each other, a car body movably connected to the sidecar frame, and a positioning component provided on the sidecar frame to limit the movement of the car body. One side of the car body is movably connected to the two-wheel frame to adapt to the centrifugal force at different turning angles and prevent rollover.

[0005] With the above structure, the movably arranged car body does not rotate simultaneously with the two-wheel frame and the sidecar frame at the moment of turning. At this moment, there will be no sudden centrifugal force caused by turning. As the turning route changes, the distance between the sidecar frame and the sidecar becomes larger. To prevent the car body from protruding too much from the sidecar frame and causing driving interference, a positioning component for limiting the movement of the car body is provided on the sidecar frame. While limiting the movement range of the car body, it can timely drive the car body to move back and be in the same direction as the sidecar frame again, improving the turning stability of the car body and also improving the riding comfort.

[0006] For the convenience of disassembly and assembly and to simplify the installation structure, preferably, a support plate is screwed on one side of the two-wheel frame. The other side of the two-wheel frame is connected to one side of a tension spring. A universal joint is provided on the support plate, and a threaded hole is provided at the movable end of the universal joint. A fixing plate is provided on the car body at a position corresponding to the universal joint. A locking bolt is inserted through the fixing plate, and the protruding end of the locking bolt is screwed into the threaded hole, and the inner side wall of the nut of the locking bolt abuts against the outer side wall of the fixing plate; the other side of the tension spring is connected to the car body.

[0007] To prevent the tension spring from deforming under force and causing steering jerks, preferably, a convex block is screwed and provided at a position on the two-wheel frame corresponding to the tension spring. One side of the tension spring is sleeved outside the convex block, and the other side is fixedly connected to the bucket body.

[0008] To facilitate the movement of the bucket body and simplify the installation structure, preferably, a bottom plate is fixedly provided on the side bucket frame, a bearing is embedded on the bottom plate, and a connecting rod sleeved in the middle of the bearing is provided at the lower end of the bucket body.

[0009] To prevent the bucket body from vibrating vertically by itself, preferably, the lower end surface of the bucket body is arranged in close contact with the upper end surface of the bottom plate.

[0010] To simplify the structure and avoid installation interference, preferably, the positioning component includes a fixed block fixedly connected to the bottom plate, and a limiting plate horizontally extending on the fixed block; a guiding groove is provided at a position on the bucket body corresponding to the limiting plate, the limiting plate extends into the guiding groove, and the upper and lower end surfaces of the limiting plate are respectively arranged in close contact with the groove walls at the corresponding ends of the guiding groove.

[0011] To simplify the installation structure, preferably, a limiting block is screwed and provided at the position of the notch of the guiding groove on the bucket body.

[0012] To reduce the steering displacement and ensure the stability of instantaneous steering, the distance between the outer side wall of the limiting block and the inner side wall of the limiting plate is 3 - 10 mm.

[0013] To meet the needs of various uses, preferably, a support plate is provided on one side of the bottom plate, a limiting bolt is passed through the support plate, a limiting screw hole is provided at a position on the bucket body corresponding to the limiting bolt, and the limiting bolt is screwed into the limiting screw hole to fix the bucket body.

[0014] Beneficial effects: The present invention provides a bucket body that is movably connected to both the two-wheel frame and the bucket frame, facilitating providing a moving space for the bucket body during instantaneous steering, and simultaneously providing a positioning component to facilitate driving the bucket body to move back in time in the same direction as the bucket frame during steering, improving the steering stability of the bucket body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 is a schematic structural diagram of the present invention.

[0017] Figure 2 is Figure 1 the enlarged view of A in

[0018] Figure 3 Schematic diagram of the installation structure of the limiting plate

[0019] Figure 4 Usage state diagram of the present invention

[0020] Figure 5 is Figure 4 Enlarged view of part B in

[0021] The meanings of the reference numerals in the drawings are as follows:

[0022] Two-wheel frame - 1; support plate - 10; tension spring - 11; universal joint - 12; convex block - 13;

[0023] Side bucket frame - 2; bottom plate - 20; fixing block - 201; bearing - 21; limiting plate - 22; guide groove - 23; limiting block - 24;

[0024] Bucket body - 3; fixing plate - 30; locking bolt - 31; connecting rod - 32; support plate - 4; limiting bolt - 40. Specific implementation manner

[0025] As shown by Figures 1 to 5 , the present invention includes a two-wheel frame 1 and a side bucket frame 2 which are connected to each other, a bucket body 3 movably connected to the side bucket frame 2, and a positioning assembly provided on the side bucket frame 2 to limit the movement of the bucket body 3. One side of the bucket body 3 is movably connected to the two-wheel frame 1 so as to adapt to the centrifugal force at different steering angles and prevent the occurrence of rollover.

[0026] Specifically, a support plate 10 is screwed and provided on one side of the two-wheel frame 1. The other side of the two-wheel frame 1 is connected to one side of a tension spring 11. A universal joint 12 is provided on the support plate 10. A threaded hole is provided at the movable end of the universal joint 12. A fixing plate 30 is provided on the bucket body 3 at a position corresponding to the universal joint 12. A locking bolt 31 is passed through the fixing plate 30. The protruding end of the locking bolt 31 is screwed and connected to the threaded hole, and the inner side wall of the nut of the locking bolt 31 abuts against the outer side wall of the fixing plate 30. The other side of the tension spring 11 is connected to the bucket body 3.

[0027] Among them, a convex block 13 is screwed and provided on the two-wheel frame 1 at a position corresponding to the tension spring 11. One side of the tension spring 11 is sleeved on the outside of the convex block 13, and the other side is fixedly connected to the bucket body 3. A bottom plate 20 is fixedly provided on the side bucket frame 2. A bearing 21 is embedded in the bottom plate 20. A connecting rod 32 is provided at the lower end of the bucket body 3 and is sleeved in the middle of the bearing 21. The lower end surface of the bucket body 3 is attached to the upper end surface of the bottom plate 20.

[0028] The positioning component includes a fixed block 201 fixedly connected to the bottom plate 20. A limiting plate 22 horizontally extends from the fixed block 201. At a position corresponding to the limiting plate 22 on the car body 3, a guiding groove 23 is provided. The limiting plate 22 extends into the guiding groove 23, and the upper and lower end faces of the limiting plate 22 are respectively attached to the groove walls at the corresponding ends of the guiding groove 23.

[0029] A limiting block 24 is screwed at the notch position of the guiding groove 23 on the car body 3. The distance between the outer side wall of the limiting block 24 and the inner side wall of the limiting plate 22 is 3 - 10 mm, preferably 8 mm.

[0030] A support plate 4 is provided on one side of the bottom plate 20. A limiting bolt 40 is passed through the support plate 4. A limiting screw hole is provided on the car body 3 at a position corresponding to the limiting bolt 40. The limiting bolt 40 is screwed to the limiting screw hole to fix the car body 3.

[0031] The working principle of the present invention is as follows:

[0032] As Figure 1 and Figure 2 shown, during installation, a support plate 10 is screwed on one side of the two-wheel frame 1. The other side of the two-wheel frame 1 is connected to one side of a tension spring 11. A universal joint 12 is provided on the support plate 10. A threaded hole is provided at the movable end of the universal joint 12 (i.e., the position of the rotating ball, as Figure 2 shown in the connection state). A fixing plate 30 is provided on the car body 3 at a position corresponding to the universal joint 12. A locking bolt 31 is passed through the fixing plate 30. The protruding end of the locking bolt 31 is screwed to the threaded hole, and the inner side wall of the nut of the locking bolt 31 abuts against the outer side wall of the fixing plate 30. The other side of the tension spring 11 is connected to the car body 3. In this way, an installation form is formed with the universal connection position on one side of the car body 3 as the rotation center and the other side of the car body 3 being elastically connected.

[0033] In addition, a bottom plate 20 is fixedly provided on the side bucket frame 2. A bearing 21 is embedded in the bottom plate 20. A connecting rod 32 sleeved in the middle of the bearing 21 is provided at the lower end of the car body 3, and the lower end face of the car body 3 is attached to the upper end face of the bottom plate 20. In this way, when the side bucket frame 2 and the two-wheel frame 1 turn simultaneously under the action of the turning moment, the car body 3 will not immediately rotate synchronously with the side bucket frame 2 (as Figure 4 shown in Figures a and b).

[0034] Specifically, when the two-wheel frame 1 turns, the bucket body 3 should remain in the original straight traveling direction during the instantaneous turn. When the angle between the two-wheel frame 1 and the bucket body 3 is relatively large, the elastic force of the tension spring 11 pulls the bucket body 3 towards the two-wheel frame 1. During the turning process, the centrifugal force generated by the instantaneous turn tends to be parallel to and remain constant with respect to the inertial component force of the turn, weakening the instantaneous turning effect, thereby ensuring the stable turning of the bucket body 3.

[0035] During this usage process, as Figure 1 and Figure 3 shown, since a fixed block 201 is fixedly connected to the bottom plate 20, and a horizontally extending limiting plate 22 is provided on the fixed block 201; a guiding groove 23 is provided at the position corresponding to the limiting plate 22 on the bucket body 3, and the limiting plate 22 extends into the guiding groove 23. The upper and lower end faces of the limiting plate 22 are respectively attached to the groove walls at the corresponding ends of the guiding groove 23. In this way, the direction of the bucket body 3 moving vertically is restricted, preventing the bucket body 3 from moving abnormally in multiple directions.

[0036] Meanwhile, two limiting blocks 24 are symmetrically screwed and provided at the position corresponding to the notch of the guiding groove 23 on the bucket body 3. The distance between the outer side wall of the corresponding limiting block 24 and the inner side wall of the limiting plate 22 is 8 mm each, effectively controlling the angle range between the two-wheel frame 1 and the bucket body 3 during turning, avoiding the elastic force of the tension spring 11 from forming a new instantaneous force, and preventing the bucket body 3 from being in a balance process between instantaneous forces in multiple directions for a long time, effectively assisting in ensuring the turning stability of the bucket body 3.

[0037] For the convenience of disassembly and replacement, the support plate 10, the convex block 13, and the limiting block 24 all adopt a screwed connection form, effectively ensuring the use stability of the bucket body 3 on the premise of facilitating operation.

[0038] During the aforementioned usage process, as Figure 1 、 Figure 2 、 Figure 4 and Figure 5 shown, the position of the universal swivel head 12 is screwed and connected to the bucket body 3 with a locking bolt 31. When the bucket body 3 rotates, the position of the universal swivel head 12 provides smooth rotation and a horizontal support point for the turning direction (as Figure 2 and Figure 5 shown). The center position of the connecting rod 32 should be adjacent to the center position of the two-wheel frame 1 in the horizontal direction and not coincide with the center of the side bucket frame 2 (i.e., the center position of the side wheel). In this way, even if the two-wheel frame 1 and the bucket body 3 have different rotation centers, the rotation amplitude of the bucket body 3 can be effectively limited, assisting in ensuring the turning stability of the bucket body 3.

[0039] The above-mentioned use effect is in the case of a person sitting. Usually, a handle (not marked) is provided on the carriage body 3 for holding when turning. However, when transporting objects, the placement of the objects is fixed and cannot adjust its position by itself like a passenger. Although the above-mentioned use effect can ensure stability, it is only limited to the stability of the person sitting during turning, and there is a slight difference from the stability of object transportation.

[0040] Specifically, in addition to being neatly and stably placed, it is also necessary to control the transportation speed. Therefore, there is no need to adapt to the turning centrifugal force during turning. At this time, in order to prevent the balance movement of the carriage body 3 in the horizontal direction from affecting the stability of the object placement, it is only necessary to fixedly connect the carriage body 3 and the side carriage frame 2. Thus, only by passing a limit bolt 40 through the support plate 4 and screwing the protruding end of the limit bolt 40 into the limit screw hole can the fixed connection between the carriage body 3 and the side carriage frame 2 be achieved.

[0041] In the embodiments of the present application, the dimension range involved should be mainly based on the design specifications of the side three-wheeler and the use environment, and this embodiment is not unique; the two-wheel frame 1 and the side carriage frame 2 involved, as the common carriers of the carriage body 3, the structural parts not described are all prior arts and will not be elaborated here.

Claims

1. An auxiliary device for sidecar steering of a lightweight sidecar with three wheels, characterized in that: It includes a two-wheel frame (1) and a sidecar frame (2) connected to each other, a car body (3) movably connected to the sidecar frame (2), and a positioning component provided on the sidecar frame (2) to limit the movement of the car body (3). One side of the car body (3) is movably connected to the two-wheel frame (1) to adapt to the centrifugal force at different steering angles and prevent rollover.

2. The sidecar steering assist device of the lightweight sidecar with three wheels according to claim 1, characterized in that: On one side of the two-wheel frame (1), a support plate (10) is screwed and installed. The other side of the two-wheel frame (1) is connected to one side of a tension spring (11). A universal joint (12) is provided on the support plate (10). A threaded hole is provided at the movable end of the universal joint (12). A fixing plate (30) is provided on the car body (3) at a position corresponding to the universal joint (12). A locking bolt (31) is inserted through the fixing plate (30). The protruding end of the locking bolt (31) is screwed and connected to the threaded hole, and the inner side wall of the nut of the locking bolt (31) abuts against the outer side wall of the fixing plate (30). The other side of the tension spring (11) is connected to the car body (3).

3. The sidecar steering assist device of the lightweight side three-wheeler according to claim 2, characterized in that: On the two-wheel frame (1) at a position corresponding to the tension spring (11), a convex block (13) is screwed and installed. One side of the tension spring (11) is sleeved on the outside of the convex block (13), and the other side is fixedly connected to the car body (3).

4. The sidecar steering assist device of the lightweight sidecar motorcycle as claimed in claim 2, wherein: A bottom plate (20) is fixedly installed on the sidecar frame (2). A bearing (21) is embedded in the bottom plate (20). A connecting rod (32) sleeved in the middle of the bearing (21) is provided at the lower end of the car body (3).

5. The sidecar steering assist device of the lightweight sidecar with three wheels according to claim 4, characterized in that: The lower end surface of the car body (3) is arranged in contact with the upper end surface of the bottom plate (20).

6. The sidecar steering assist device of the lightweight side three-wheeler according to claim 4, characterized in that: The positioning component includes a fixing block (201) fixedly connected to the bottom plate (20). A limiting plate (22) extending horizontally is provided on the fixing block (201). A guiding groove (23) is provided on the car body (3) at a position corresponding to the limiting plate (22). The limiting plate (22) extends into the guiding groove (23), and the upper and lower end surfaces of the limiting plate (22) are respectively arranged in contact with the groove walls at the corresponding ends of the guiding groove (23).

7. The sidecar steering assist device of the lightweight side three-wheeler according to claim 6, characterized in that: A limiting block (24) is screwed and installed on the car body (3) at the position corresponding to the notch of the guiding groove (23).

8. The light sidecar steering assist device according to claim 7, characterized in that: The distance between the outer side wall of the limiting block (24) and the inner side wall of the limiting plate (22) is 3 - 10 mm.

9. The sidecar steering assist device of the lightweight sidecar with three wheels as claimed in claim 5, characterized in that: A support plate (4) is provided on one side of the bottom plate (20). A limiting bolt (40) is inserted through the support plate (4). A limiting screw hole is provided on the car body (3) at the position corresponding to the limiting bolt (40). The limiting bolt (40) is screwed and connected to the limiting screw hole to fix the car body (3).

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