A front wheel steering system and motorized luggage

Abstract

The utility model discloses a front wheel steering system and electric luggage, including connecting shaft, steering wheel and support plate, and the connecting shaft is rotatably installed on the steering wheel, and the connecting shaft includes horizontal section, vertical section and transition section, and the horizontal section is offset to the rear relative to the vertical section, and the steering wheel is rotatably installed on the horizontal section, and the vertical section is rotatably installed on the support plate, and the support plate is installed with the control structure for driving the steering wheel to rotate, and the control structure is distributed with the lock structure. Adopt single -pole control, and the control is convenient, and the lock structure can be used to connect control structure and box structure as a whole, and the steering speed is relatively big when the push -and -pull mode is stable control, and the problem of prone to side overturning does not appear.

Description

Technical Field

[0001] This utility model belongs to the field of electric luggage, specifically a front wheel steering system adapted to large-capacity electric luggage. Background Technology

[0002] Existing electric suitcases, in addition to the basic functions of traditional sliding suitcases, also include a passenger riding mode. Most existing electric suitcases use a dual-lever operation system, one for riding mode and the other for push-pull mode. This can encroach on interior space and is cumbersome to operate. Secondly, because electric suitcases need to carry passengers, several problems arise, namely, the suitcase structure is prone to deformation. Factors contributing to deformation include materials and structure. Traditional steering wheels are mostly located directly at the bottom of the suitcase, where structural strength is relatively weak. Under load, this area is easily subjected to direct force on the suitcase body, leading to deformation. Utility Model Content

[0003] To solve the above-mentioned technical problems, the inventors, through practice and summarization, derived the technical solution of this utility model, which adopts the following technical solution:

[0004] A front-wheel steering system is built into the front side of a housing structure and includes a connecting shaft, a steering wheel, and a support plate. The connecting shaft is rotatably mounted on the steering wheel. The connecting shaft includes a horizontal section, a vertical section, and a transition section. The horizontal section is offset rearward relative to the vertical section. The steering wheel is rotatably mounted on the horizontal section, and the vertical section is rotatably mounted on the support plate. A control structure for driving the steering wheel to rotate is mounted on the support plate, and a locking structure is provided on the control structure.

[0005] This design utilizes a connecting shaft to ensure the steering wheels are concealed within the bottom of the gearbox structure. Simultaneously, the support plate, originally located inside the gearbox, is positioned at the bottom corner of the gearbox—the optimal location for maximum structural strength. This ensures the stability of the front wheel steering system and reduces the risk of operational jamming due to deformation of nearby gearbox structures. Furthermore, a single-lever control system minimizes space occupation and facilitates operation. A locking mechanism integrates the control mechanism and gearbox structure into a single unit, providing stable control even at relatively high steering speeds in push-pull mode and reducing the risk of tipping over.

[0006] In the front wheel steering system, a support ring is installed on the vertical section, and a sleeve fitted on the outside of the vertical section is provided above the support ring. A bearing component fitted on the outside of the vertical section is independently installed between the sleeve and the support plate.

[0007] Both the horizontal and vertical sections have external threads at the ends furthest from the connecting shaft.

[0008] In the front wheel steering system, the horizontal segment is offset rearward by 10-60° relative to the vertical segment.

[0009] In the front wheel steering system, the control structure includes a control lever and a linkage. The control lever is rotatably mounted on a support plate and connected to a vertical section via the linkage.

[0010] The control lever has a telescopic structure, and a reinforcement member is installed at the bottom of the support plate. The reinforcement member is fixed at the bottom corner of the box. The reinforcement members are distributed on both sides of the control lever and have connection holes on their surface.

[0011] In the front wheel steering system, the linkage includes a first connecting plate fixed to the bottom of the control lever, a second connecting plate fixed to the vertical section, and a third connecting plate connecting the first connecting plate and the second connecting plate.

[0012] Two sets of constraint members are installed on the top of the vertical section, and the constraint members are distributed on both sides of the connecting plate two.

[0013] In the front wheel steering system, the locking structure includes a mounting plate independently disposed on the outside of the control lever. The mounting plate is positioned above the support plate, and a constraint structure and a switching structure are mounted on the mounting plate. The switching structure functions to constrain or release the control lever.

[0014] In the front wheel steering system, the constraint structure includes constraint body one and constraint body two, which are distributed on the front and rear sides of the control lever. One end of constraint body one and constraint body two are rotatably mounted on the mounting plate, and the other end is connected to the mounting plate through an elastic element.

[0015] Both constraint body one and constraint body two have sloping surfaces on the ends away from the control lever and on the sides facing away from each other.

[0016] In the front wheel steering system, the switching structure includes a locking strip that slides on the mounting plate, and two locking bodies are provided on the locking strip, which are distributed on the outside of the constraint structure.

[0017] In the front wheel steering system, the mounting plate is provided with a through groove, and the locking bar is provided with an operating handle protruding from the through groove.

[0018] An electric suitcase includes a suitcase structure and a front wheel steering system mounted on the suitcase structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention uses a connecting shaft to conceal the steering wheel at the bottom of the housing structure, and uses the connecting shaft to install the support plate as close as possible to the bottom of the housing structure. The steering wheel is controlled by a control lever to control the direction of travel, and a locking structure is used to lock the control structure and the housing structure together, thus making it less likely to tip over in push-pull mode. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a structural diagram showing the relationship between the connecting shaft and the support plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the back structure of the mounting plate of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the electric luggage box of this utility model;

[0025] Figure 5 This is a schematic diagram of the box structure of this utility model.

[0026] In the diagram: 10. Steering wheel; 11. Connecting shaft; 12. Vertical section; 121. Support ring; 122. Sleeve; 123. Bearing component; 13. Transition section; 14. Horizontal section; 20. Support plate; 30. Control lever; 40. Linkage component; 41. Connecting plate one; 42. Connecting plate two; 43. Connecting plate three; 50. Mounting plate; 51. Constraint body one; 52. Constraint body two; 53. Elastic component; 54. Locking bar; 55. Operating handle; 60. Box structure; 70. Drive wheel. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0029] Example 1

[0030] like Figure 1As shown, a front wheel steering system includes a connecting shaft 11, a steering wheel 10, and a support plate 20. The connecting shaft 11 is rotatably mounted on the steering wheel 10. The connecting shaft 11 includes a horizontal section 14, a vertical section 12, and a transition section 13. The horizontal section 14 is offset rearward relative to the vertical section 12. The steering wheel 10 is rotatably mounted on the horizontal section 14, and the vertical section 12 is rotatably mounted on the support plate 20. A control structure for driving the steering wheel 10 to rotate is mounted on the support plate 20, and a locking structure is provided on the control structure.

[0031] The guide wheel 10 can be concealed within the bottom of the housing structure using the connecting shaft 11, thus utilizing the area between the drive wheel and the steering wheel. A support plate is installed at the corner of the bottom of the housing, ensuring structural stability under load. In push-pull mode, the locking mechanism integrates the control mechanism and housing structure into a single unit, preventing tipping during steering. In riding mode, the locking mechanism is opened, allowing the control mechanism to rotate relative to the housing structure for steering.

[0032] Example 2

[0033] In the aforementioned front wheel steering system, such as Figure 2 As shown, a support ring 121 is installed on the vertical section 12, and a sleeve 122 is provided above the support ring 121 and fitted on the outside of the vertical section 12. A bearing 123 fitted on the outside of the vertical section 12 is independently installed between the sleeve 122 and the support plate 20.

[0034] Both the horizontal section 14 and the vertical section 12 have external threads at the ends away from the connecting shaft 11.

[0035] The horizontal segment 14 is offset backward relative to the vertical segment 12 by 10-60°, preferably 20°, 25° or 30°.

[0036] The control structure includes a control lever 30 and a connecting rod 40. The control lever 30 is rotatably mounted on the support plate 20 and connected to the vertical section 12 via the connecting rod 40.

[0037] The control lever 30 is a telescopic structure. The bottom of the support plate 20 is equipped with reinforcement parts, which are distributed on both sides of the control lever 30 and have connection holes on their surfaces.

[0038] The sleeve 122 on the vertical section 12 can pass through the bottom of the box structure and the bearing 123 at the top can complete the rotation operation relative to the support plate 20. By using the horizontal section 14 to offset backward relative to the vertical section 12, the position of the support plate 20 can be moved forward to ensure that it is installed at the bottom corner of the box structure with reinforcement.

[0039] The connecting rod 40 includes a first connecting plate 41 fixed to the bottom of the control lever 30, a second connecting plate 42 fixed to the vertical section 12, and a third connecting plate 43 connecting the first connecting plate 41 and the second connecting plate 42.

[0040] Two sets of constraint members are installed on the top of the vertical section 12. The constraint members are distributed on both sides of the connecting plate 42. The constraint members are nuts, and the lower nuts and the support plate are connected by washers.

[0041] In practice, by rotating the control lever 30 left and right, the connecting plate 11 drives the connecting plate 22 via the connecting plate 33 to rotate the steering wheel 10 and control the direction of travel.

[0042] Example 3

[0043] In the aforementioned front wheel steering system, such as Figure 3 As shown, the locking structure includes a mounting plate 50 independently disposed on the outside of the control lever 30. The mounting plate 50 is arranged above the support plate 20, and a constraint structure and a switching structure are installed on the mounting plate 50. The switching structure constrains or releases the control lever 30.

[0044] The constraint structure includes constraint body 1 51 and constraint body 2 52, which are distributed on the front and rear sides of the control lever 30. One end of constraint body 1 51 and constraint body 2 52 are rotatably mounted on the mounting plate 50, and the other end is connected to the mounting plate 50 through an elastic element 53.

[0045] Both constraint body 1 51 and constraint body 2 52 have a ramp surface on the side away from the control lever 30 and on the side opposite to each other.

[0046] The switching structure includes a locking strip 54 that slides on the mounting plate 50, and two locking bodies are provided on the locking strip 54, which are distributed on the outside of the constraint structure.

[0047] The mounting plate 50 is provided with a through groove, and the locking strip 54 is provided with an operating handle 55 protruding from the through groove.

[0048] By adjusting the position of the operating handle 55 left and right, and adjusting it to the side away from the control lever 30, the locking bar 54 moves to the slope surface. The elastic element 53 will then act as a constraint to extend and open the locking constraint on the control lever 30. After adjusting the operating handle 55 in the opposite direction, the control lever 30 will be constrained, and there will be no relative rotation left and right. This will ensure stable push-pull operation and prevent tipping.

[0049] like Figure 4 and Figure 5As shown, an electric luggage case includes a case structure 60 and a front-wheel steering system as described in the above embodiments, mounted on the case structure 60. The bottom of the case structure 60 has a first recessed structure 61 and a second recessed structure 62. The first recessed structure 61 is used to conceal the steering wheel 10, and the second recessed structure 62 is used to conceal the drive wheel 70. The top of the first recessed structure 61 has a through-hole, and the side of the second recessed structure 62 has a through-hole. The first through-hole facilitates the insertion of a sleeve, and the second through-hole is used to install the drive wheel 70. The electric luggage case of this invention adopts a four-wheel stability structure composed of two drive wheels 70 and two steering wheels 10, resulting in more stable operation.

[0050] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A front-wheel steering system, characterized in that, It includes a connecting shaft (11), a steering wheel (10) and a support plate (20). The connecting shaft (11) is rotatably mounted on the steering wheel (10). The connecting shaft (11) includes a horizontal section (14), a vertical section (12) and a transition section (13). The horizontal section (14) is offset backward relative to the vertical section (12). The steering wheel (10) is rotatably mounted on the horizontal section (14). The vertical section (12) is rotatably mounted on the support plate (20). The support plate (20) is equipped with a control structure for driving the steering wheel (10) to rotate. The control structure is provided with a locking structure.

2. A front-wheel steering system according to claim 1, characterized in that, A support ring (121) is installed on the vertical section (12). A sleeve (122) is provided above the support ring (121) and fitted on the outside of the vertical section (12). A bearing (123) fitted on the outside of the vertical section (12) is independently installed between the sleeve (122) and the support plate (20). Both the horizontal section (14) and the vertical section (12) have external threads at the ends away from the connecting shaft (11).

3. A front-wheel steering system according to claim 1, characterized in that, The horizontal segment (14) is offset backward by 10-60° relative to the vertical segment (12).

4. A front-wheel steering system according to claim 1, characterized in that, The control structure includes a control lever (30) and a connecting rod (40). The control lever (30) is rotatably mounted on the support plate (20) and connected to the vertical section (12) through the connecting rod (40). The control lever (30) is a telescopic structure. The bottom of the support plate (20) is equipped with reinforcement parts. The reinforcement parts are distributed on both sides of the control lever (30) and have connection holes on their surfaces.

5. A front-wheel steering system according to claim 4, characterized in that, The linkage (40) includes a first connecting plate (41) fixed to the bottom of the control lever (30), a second connecting plate (42) fixed to the vertical section (12), and a third connecting plate (43) connecting the first connecting plate (41) and the second connecting plate (42). Two sets of constraint members are matched and installed on the top of the vertical section (12), and the constraint members are distributed on both sides of the connecting plate two (42).

6. A front-wheel steering system according to claim 4, characterized in that, The locking structure includes a mounting plate (50) independently set on the outside of the control lever (30). The mounting plate (50) is arranged above the support plate (20), and a constraint structure and a switching structure are installed on the mounting plate (50). The switching structure constrains or releases the control lever (30).

7. A front-wheel steering system according to claim 6, characterized in that, The constraint structure includes constraint body one (51) and constraint body two (52). Constraint body one (51) and constraint body two (52) are distributed on the front and rear sides of the control lever (30). One end of constraint body one (51) and constraint body two (52) are rotatably mounted on the mounting plate (50), and the other end is connected to the mounting plate (50) through an elastic element (53). Both constraint body one (51) and constraint body two (52) have a ramp surface on the side away from the control lever (30) and on the side opposite to each other.

8. A front-wheel steering system according to claim 6, characterized in that, The switching structure includes a locking strip (54) that slides on the mounting plate (50), and two locking bodies are provided on the locking strip (54), which are distributed on the outside of the constraint structure.

9. A front-wheel steering system according to claim 8, characterized in that, The mounting plate (50) is provided with a through groove, and the locking strip (54) is provided with an operating handle (55) protruding from the through groove.

10. An electric suitcase, characterized in that, Includes a housing structure (60) and a front wheel steering system as described in any one of claims 1 to 9 mounted on the housing structure (60).

Images