A head tube steering mechanism for a tricycle and a tricycle

Abstract

The application relates to a reverse tricycle head tube steering mechanism and a reverse tricycle, wherein the reverse tricycle head tube steering mechanism and the reverse tricycle comprise an anti-loose screw cap, a boss gasket, a steering U-shaped opening, a bearing, a head tube, a shaft sleeve and a main shaft screw rod; the bearing is arranged at two ends of the head tube; the main shaft screw rod passes through the shaft sleeve, the head tube, the boss gasket and the steering U-shaped opening and is in threaded connection with the anti-loose screw cap; and the head tube is arranged between the opening ranges of the steering U-shaped opening. The reverse tricycle head tube steering mechanism can realize stable cooperation between parts, guarantee steering accuracy, and is convenient to assemble and maintain.

Description

Technical Field

[0001] This application relates to the technical field of steering systems for three-wheeled vehicles, and more specifically, to a head tube steering mechanism for a three-wheeled vehicle and a three-wheeled vehicle. Background Technology

[0002] As a special mode of transportation, the performance of the steering system of a tricycle directly affects the vehicle's handling, stability, and driving safety.

[0003] Traditional three-wheeled vehicle steering systems have some shortcomings in their structural design. For example, the fit between some steering system components is not tight enough, which can easily lead to loosening and increased wear during long-term use, thus affecting the accuracy of steering.

[0004] Some steering systems are also complicated to assemble, making them inconvenient to produce and maintain, which increases production costs and the difficulty of later maintenance.

[0005] Therefore, it is necessary to design a head tube steering system for a three-wheeled vehicle that is structurally sound, easy to assemble, and can ensure stable steering performance. Utility Model Content

[0006] The purpose of this application is to provide a steering mechanism for a three-wheeled vehicle and a three-wheeled vehicle in reverse, so as to solve the problems mentioned in the background art, achieve stable cooperation between components, ensure steering accuracy, and facilitate assembly and maintenance.

[0007] To achieve the above objectives, in a first aspect, this utility model provides a steering mechanism for the head tube of a three-wheeled vehicle, including an anti-loosening nut, a boss washer, a steering U-shaped opening, a bearing, a head tube, a bushing, and a main shaft screw. The bearings are located at both ends of the head tube, and the main shaft screw passes through the bushing, the head tube, the boss washer and the U-shaped turning port, and is threadedly connected to the anti-loosening nut. The head tube is positioned within the opening range of the steering U-port.

[0008] In an optional embodiment, the bearing includes a deep groove ball bearing, which is accommodated at the top and bottom ends of the head tube.

[0009] In an optional embodiment, the outer ring of the bearing is press-fitted with the head tube, and the inner ring of the bearing is clamped onto the smooth section of the main shaft screw.

[0010] In an optional embodiment, the steering U-port includes a top connecting plate and a bottom connecting plate located on the top and bottom sides, and a through shaft hole located on the connecting plate. The bushing is installed in the through shaft hole of the top connecting plate, and the bushing is clamped on the smooth section of the main shaft screw.

[0011] In an optional embodiment, the two end faces of the bushing protrude from the two end faces of the top connecting plate, and a washer is installed between the nut of the main shaft screw and the top end face of the bushing.

[0012] In an optional embodiment, the boss gasket is installed in the through shaft hole of the bottom connecting plate and is disposed between the head tube and the bottom connecting plate.

[0013] In an optional embodiment, the boss gasket clamp is fitted onto the smooth section of the main spindle screw.

[0014] In an optional embodiment, the spindle screw includes a screw section extending from the bottom connecting plate, and the anti-loosening nut is connected to the extended portion of the screw section.

[0015] In an optional embodiment, a gasket is provided between the anti-loosening nut and the bottom connecting plate.

[0016] Secondly, this utility model provides a reverse tricycle, including a steering system and a reverse tricycle head tube steering mechanism as described in any of the foregoing embodiments, wherein the steering system is connected to the steering U-port.

[0017] The steering mechanism of the inverted tricycle head tube in this utility model can achieve stable cooperation between the parts, ensure steering accuracy, and facilitate assembly and maintenance.

[0018] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the split structure of the steering mechanism of a three-wheeled vehicle's head tube; Figure 2 This is a schematic diagram of the installation structure of the steering mechanism of the three-wheeled vehicle's head tube on the vehicle frame.

[0021] icon: 1-Anti-loosening nut; 2-Boss washer; 3-Tuning U-port; 31-Connecting plate; 32-Shaft hole; 4-Bearing; 5-Head tube; 6-Shaft sleeve; 7-Main shaft screw; 8-Washer. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] See Figure 1 and combined Figure 2 The steering mechanism of the head tube of the three-wheeled vehicle provided in this utility model includes an anti-loosening nut 1, a boss washer 2, a steering U-shaped opening 3, a bearing 4, a head tube 5, a bushing 6, and a main shaft screw 7. The bearing 4 is disposed at both ends of the head tube 5, and the main shaft screw 7 passes through the bushing 6, the head tube 5, the boss washer 2 and the steering U-port 3, and is threadedly connected to the anti-loosening nut 1. The head tube 5 is positioned within the opening range of the steering U-port 3.

[0026] Each component is assembled via the main spindle screw 7, resulting in a simple structure, convenient assembly, easy production and subsequent maintenance, and reduced costs.

[0027] By using bearings 4 located at both ends of the head tube 5, the friction between the head tube 5 and the steering U-port 3 is reduced, making the head tube 5 rotate more smoothly and improving the steering accuracy and flexibility.

[0028] The cooperation between the anti-loosening nut 1 and the boss washer 2 effectively prevents loosening between components, enhances the stability and reliability of the steering system, and ensures the safety of the tricycle during operation.

[0029] The head tube 5 is positioned within the opening range of the steering U-port 3, forming a compact and stable steering hub. The various components are connected and locked in series via the main shaft screw 7, forming a highly integrated modular unit. Its simple structure and compact layout greatly facilitate production and subsequent maintenance.

[0030] The structural layout of the steering U-port 3 and the head tube 5 effectively improves the rigidity and integrity of the entire steering node during vehicle operation, enabling the head tube 5 to rotate smoothly relative to the steering U-port 3.

[0031] In one specific embodiment, in order to ensure the smooth and flexible rotation of the head tube 5, the bearing 4 includes a deep groove ball bearing 4, which is housed at the top and bottom ends of the head tube 5.

[0032] In the specific connection and installation, the head tube 5 is installed vertically at a certain angle. The top and bottom ends of the head tube 5 are provided with recesses for pressing the bearings 4. Two deep groove ball bearings 4 are respectively pressed into the recesses at the ends of the head tube 5.

[0033] During the overall assembly, the main spindle screw 7 passes through both the steering U-port 3 and the head tube 5, with the main spindle screw 7 and steering U-port 3 being fixedly connected. Simultaneously, the main spindle screw 7 passes through two deep groove ball bearings 4, allowing the head tube 5 to rotate relative to the main spindle screw 7 and steering U-port 3 through the engagement of the deep groove ball bearings 4. Based on this, the outer ring of the bearing 4 is press-fitted into the head tube 5, while the inner ring of the bearing 4 is clamped onto the smooth section of the main spindle screw 7.

[0034] More specifically, the deep groove ball bearing 4 is a 6005 bearing. The head tube 5 cooperates with the main shaft screw 7 through the 6005 bearings on both sides, so that the deep groove ball bearing 4 can reduce the friction between the head tube 5 and the main shaft screw 7, and allow the head tube 5 to rotate smoothly relative to the main shaft screw 7 and the steering U-port 3, thereby realizing the steering function.

[0035] The boss gasket 2 is installed between the head tube 5 and the steering U-port 3 to connect the head tube 5 and other steering-related components to transmit steering force.

[0036] Specifically, the steering U-port 3 includes a top connecting plate 31 and a bottom connecting plate 31 located on the top and bottom sides, and a through shaft hole 32 located on the connecting plate 31. The bushing 6 located at the top is installed in the through shaft hole 32 of the top connecting plate 31, and the bushing 6 is clamped on the smooth section of the main shaft screw 7.

[0037] By fitting the bushing 6 onto the main spindle screw 7, the main spindle screw 7 can be effectively positioned and supported, ensuring that there is no radial clearance or interference in the entire system when the steering U-port 3 and the head tube 5 rotate relative to each other.

[0038] During actual operation, by making improvements to necessary structural details, the close contact between the head tube 5 and the steering U-port 3 is avoided. The axial clearance formed by the structural improvements reduces the friction between the head tube 5 and the bearing 4 and the steering U-port 3.

[0039] The specific structural details are mainly reflected in the bushing 6 and the boss gasket 2. From the perspective of the top bushing 6, the through hole 32 on the connecting plate 31 of the steering U-port 3 is a through hole structure. The axial length of the bushing 6 is greater than the axial length of the through hole 32. Thus, after assembly, the two end faces of the top and bottom of the bushing 6 protrude from the two end faces of the top connecting plate 31. Furthermore, by press-fitting the protruding end face of the bottom of the bushing 6 with the end face of the inner ring of the bearing 4 located at the top, a gap can be formed between the head tube 5 and the connecting plate 31 of the steering U-port 3, avoiding the risk of interference between the head tube 5 and the steering U-port 3. On the other hand, the inner ring of the bearing 4, the bushing 6, the steering U-port 3 and the main shaft screw 7 can form a relatively rotating whole, ensuring that the head tube 5 and the outer ring of the bearing 4 can rotate smoothly relative to the rotating whole.

[0040] Meanwhile, in order to maintain a reliable axial press-fit relationship, a washer 8 is installed between the nut of the spindle screw 7 and the top end face of the bushing 6. The tightening force of the nut of the spindle screw 7 can be effectively transmitted through the washer 8 located at the top, ensuring that the bushing 6 is effectively press-fitted between the washer 8 and the inner ring of the top bearing 4.

[0041] From the angle of the bottom boss gasket 2, the boss gasket 2 is installed in the through shaft hole 32 of the bottom connecting plate 31 and is located between the head tube 5 and the bottom connecting plate 31.

[0042] Similarly, by setting the boss gasket 2, a gap can be formed between the bottom end face of the head tube 5 and the connecting plate 31 of the steering U-port 3, avoiding the risk of interference between the head tube 5 and the steering U-port 3.

[0043] Furthermore, in order to enable the inner ring of the bottom bearing 4, the boss washer 2, the steering U-shaped opening 3, and the main spindle screw 7 to form a relatively rotating whole, the boss washer 2 is clamped onto the smooth section of the main spindle screw 7. This ensures that the inner ring of the bottom bearing 4, the boss washer 2, the steering U-shaped opening 3, and the main spindle screw 7 form a relatively rotating whole, allowing the head tube 5 and the outer ring of the bearing 4 to rotate smoothly relative to the rotating whole.

[0044] A washer 8 is provided between the anti-loosening nut 1 and the bottom connecting plate 31. The installation of the boss washer 2 and the washer 8 can adjust the gap, increase the contact area and assist in anti-loosening, ensuring the tightness of the connection between the components.

[0045] The main spindle screw 7 includes a screw section located at the bottom, which extends from the bottom connecting plate 31, and the anti-loosening nut 1 is connected to the extended part of the screw section.

[0046] The anti-loosening nut 1 is threadedly connected to the screw section of the main shaft screw 7, and is used to lock the above-mentioned components on the main shaft screw 7 to prevent the components from loosening due to vibration and other factors during vehicle operation, and to ensure the stability of the steering system structure.

[0047] Compared to existing technologies, the components are assembled via the main shaft screw 7, resulting in a simple structure, convenient assembly, easier production and subsequent maintenance, and reduced costs. The use of deep groove ball bearings reduces friction, making the head tube 5 rotate more smoothly and improving steering precision and flexibility. The cooperation of the anti-loosening nut 1, boss washer 2, and washer 8 effectively prevents loosening between components, enhancing the stability and reliability of the steering system and ensuring the safety of the tricycle during operation.

[0048] During assembly, first, press the bearing 4 into both ends of the head tube 5 to ensure it is in place. Then, place the bushing 6 and the top washer 8 onto the appropriate position on the smooth section of the main shaft screw 7. Next, insert the boss washer 2 into the through shaft hole 32 on the connecting plate 31 of the steering U-port 3. Then, align the head tube 5 and the steering U-port concentrically to allow the main shaft screw 7 to be inserted through, and place the bottom washer 8 on top. Finally, screw the anti-loosening nut 1 into the threaded section of the main shaft screw 7 and tighten the anti-loosening nut 1 to ensure that all components are tightly connected together, thus completing the assembly of the entire steering system.

[0049] This utility model also provides a reverse tricycle, including a steering system and a reverse tricycle head tube steering mechanism as described in any of the foregoing embodiments, wherein the steering system is connected to the steering U-port 3.

[0050] When turning is required, the steering component connected to the steering U-port 3 is operated, causing the steering U-port 3 to drive the head tube 5 to rotate relative to the main shaft screw 7. Since the head tube 5 and the main shaft screw 7 are connected by the bearing 4, the friction is small, and the head tube 5 can rotate smoothly, thereby realizing the steering action of the tricycle.

[0051] During driving, anti-loosening nuts and other components ensure that all components remain secure and without vertical play, thus ensuring stable operation of the steering system.

[0052] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A steering mechanism for the head tube of a three-wheeled vehicle, characterized in that, This includes anti-loosening nuts, boss washers, steering U-shaped fittings, bearings, head tubes, bushings, and main spindle screws; The bearings are located at both ends of the head tube, and the main shaft screw passes through the bushing, the head tube, the boss washer and the U-shaped turning port, and is threadedly connected to the anti-loosening nut. The head tube is positioned within the opening range of the steering U-port.

2. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 1, characterized in that, The bearing includes a deep groove ball bearing, which is housed at the top and bottom ends of the head tube.

3. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 1, characterized in that, The outer ring of the bearing is press-fitted with the head tube, and the inner ring of the bearing is clamped onto the smooth section of the main shaft screw.

4. The steering mechanism for the head tube of a three-wheeled vehicle according to any one of claims 1-3, characterized in that, The steering U-port includes a top connecting plate and a bottom connecting plate located on the top and bottom sides, as well as a through shaft hole located on the connecting plate. The bushing is installed in the through shaft hole of the top connecting plate, and the bushing is clamped on the smooth section of the main shaft screw.

5. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 4, characterized in that, The two end faces of the bushing protrude from the two end faces of the top connecting plate, and a washer is installed between the nut of the main shaft screw and the top end face of the bushing.

6. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 4, characterized in that, The boss gasket is installed in the through shaft hole of the bottom connecting plate and is located between the head tube and the bottom connecting plate.

7. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 1, characterized in that, The boss gasket clamp is fitted onto the smooth section of the main shaft screw.

8. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 4, characterized in that, The main shaft screw includes a screw section that extends from the bottom connecting plate, and the anti-loosening nut is connected to the extended part of the screw section.

9. The steering mechanism for the head tube of a three-wheeled vehicle according to claim 4, characterized in that, A gasket is provided between the anti-loosening nut and the bottom connecting plate.

10. A reversing tricycle, comprising a steering system and a head tube steering mechanism according to any one of claims 1-9, characterized in that, The steering system is connected to the steering U-port.

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