Double-limiting steering system

Abstract

The invention discloses a double-limiting steering system, and belongs to the technical field of all-terrain vehicle accessories. Comprising a first limiting assembly arranged between a steering column and a vehicle body and a second limiting assembly arranged between a steering wheel and the vehicle body. The second limiting assembly comprises a limiting part and a limiting cavity, the limiting part is arranged on a cavel of the steering wheel and protrudes outwards, the limiting cavity is formed in a transverse pull rod connected with the cavel or a swing arm connected with the cavel, the limiting part is arranged in the limiting cavity, and the steering angle of the steering wheel is limited through the limiting part. The first limiting mechanism of the double-limiting steering system can limit the steering column, the second limiting mechanism can limit the steering wheel, damage to a steering gear due to the fact that the steering angle of the steering wheel is too large due to the poor road condition of the all-terrain vehicle is avoided, through the double-steering limiting mode, the situation that the steering angle is too large, and the steering gear is damaged is avoided. And the steering gear box can be protected.

Description

Technical Field

[0001] The invention discloses a double-limit steering system, belonging to the technical field of all-terrain vehicle accessories. Background Art

[0002] All-terrain vehicles, commonly known as "beach cars" or "all-terrain four-wheel off-road motorcycles", are simple and practical vehicles with good off-road performance. Because their structure is very similar to that of motorcycles and many parts are common to motorcycles, some people also call them "four-wheel motorcycles". This type of vehicle has multiple uses and is not restricted by road conditions. Its passability and off-road performance are particularly outstanding.

[0003] Steering is a critical performance indicator of a vehicle and an important reference point that affects the safety of vehicle components and driving safety. ATVs themselves evolved from motorcycles, borrowing the suspension structure of four-wheeled vehicles and the steering column steering structure of motorcycles to achieve front wheel steering through the handlebars. Although the suspension structure of four-wheeled vehicles is borrowed, four-wheeled vehicles often use universal steering machines to achieve position limiting. Traditional ATV models are handlebar-type steering and have a steering column structure. The solid steering limit mechanism follows the structural principle of motorcycles and limits the rotation of the middle steering column of the vehicle to achieve the set limit angle.

[0004] The steering structure of the existing all-terrain vehicle has the following problems: 1) The existing mechanism needs to add a mechanism around the steering column to limit the rotation of the steering column, and the steering column itself also needs to have a mechanism to accommodate the limiting mechanism. Usually, each of them is connected by a welding mechanism and cooperates with each other to achieve limiting, and the process is relatively complicated.

[0005] 2) The driving conditions are relatively complicated. When the vehicle bottoms out or encounters other high obstacles, the steering rod touches the obstacle and is damaged. The original mechanism will cause the steering to lose control, damage the transmission system components, etc., and even directly affect driving safety. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a dual-limit steering system which can limit the steering wheel, has a simple limit structure, and can protect the transmission system.

[0007] The technical solution adopted by the present invention to solve the technical problem is: the dual-limit steering system includes a first limit assembly arranged between the steering column and the vehicle body and a second limit assembly arranged between the steering wheel and the vehicle body; The second limiting assembly includes a limiting portion protruding from the horn of the steering wheel and a limiting cavity provided on a transverse pull rod connected to the horn or on a swing arm connected to the horn. The limiting portion is provided in the limiting cavity, and the steering angle of the steering wheel is limited by the limiting portion.

[0008] Preferably, the limiting cavity is an arc-shaped coaxial with the rotating axis of the horn.

[0009] Preferably, swing arm limit blocks are symmetrically arranged on both sides of the swing arm, and the limit cavity is formed between the two swing arm limit blocks.

[0010] Preferably, there are two limiting parts arranged at intervals along the horn, and both limiting parts are arranged in the limiting cavity.

[0011] Preferably, the limiting portion is provided on a horn limiting block on the horn, and the horn limiting block extends into the limiting cavity.

[0012] Preferably, it also includes a locking mechanism arranged between the vehicle body and the steering column.

[0013] Preferably, the locking mechanism includes a locking assembly arranged between the steering column and the vehicle body, the locking assembly is detachably mounted on the vehicle body, a locking portion opposite to the locking assembly is arranged on the steering column, and the locking assembly cooperates with the locking portion to lock the rotation of the steering column.

[0014] Preferably, the locking assembly comprises an anti-theft lock which is detachably mounted on the vehicle body, and a lock tongue of the anti-theft lock faces the locking portion and can extend into the locking portion.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The first limiting mechanism of the dual-limit steering system can limit the steering column, and the second limiting mechanism can limit the steering wheel to avoid damage to the steering gear due to excessive steering angle of the steering wheel caused by poor road conditions of the all-terrain vehicle. Through the dual steering limit method, it can not only avoid excessive steering angle, but also protect the steering gear.

[0016] The limiting mechanism is directly installed on the horn, and the steering wheel is limited by the limiting cavity and the limiting part, which does not increase the complexity of processing and eliminates the complexity of the original vehicle body limiting mechanism. Regardless of whether the suspension or steering components are damaged or not, the tire follows the set maximum angle; if the steering rod is damaged, the steering angle of the tire will still follow the original set maximum angle, and the tire will not turn too much due to damage to the rod, thereby damaging the half-axle and other transmission components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a dual-limit steering system; Figure 2 for Figure 1 A partial enlarged view of the middle A; Figure 3 is a three-dimensional schematic diagram of the locking mechanism; Figure 4for Figure 3 A partial enlarged view of point B in the middle.

[0018] In the figure: 1. steering mounting frame; 2. swing arm; 3. steering wheel; 4. swing arm limit block; 5. ram's horn limit block; 6. ram's horn; 7. transverse pull rod; 8. steering column; 9. mounting frame; 901, mounting plate; 10. connecting piece; mounting part 1003, connecting part; 1002, transition part; 1003, mounting part; 11. locking plate; 1101, locking hole; 12. anti-theft lock; 1201, lock tongue. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0020] Figure 1-Figure 4 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 4 The present invention is further described.

[0021] A dual-limit steering system includes a first limit assembly arranged between a steering column 8 and a vehicle body and a second limit assembly arranged between a steering wheel 3 and the vehicle body; the second limit assembly includes a limit portion protruding from the clevis 6 of the steering wheel 3 and a limit cavity arranged on a transverse tie rod 7 connected to the clevis 6 or on a swing arm 2 connected to the clevis 6, the limit portion is arranged in the limit cavity, and the steering angle of the steering wheel 3 is limited by the limit portion. The first limit mechanism of the dual-limit steering system can limit the steering column 8, and the second limit mechanism can limit the steering wheel 3, so as to avoid damage to the steering machine due to excessive steering angle of the steering wheel 3 caused by poor road conditions of the all-terrain vehicle. Through the dual steering limit method, it can avoid excessive steering angle and protect the steering machine.

[0022] The limiting mechanism is directly installed on the horn 6, and the limiting of the steering wheel 3 is achieved through the limiting cavity and the limiting part, which does not increase the complexity of processing and eliminates the complexity of the original vehicle body limiting mechanism. Regardless of whether the suspension or steering components are damaged or not, the tire follows the set maximum angle; if the steering rod is damaged, the steering angle of the tire will still follow the original set maximum angle, and the tire will not turn too much due to damage to the rod, thereby damaging the half shaft and other transmission components.

[0023] The limiting mechanism is directly installed on the horn 6, and the limiting of the steering wheel 3 is achieved through the limiting cavity and the limiting part, which does not increase the complexity of processing and eliminates the complexity of the original vehicle body limiting mechanism. Regardless of whether the suspension or steering components are damaged or not, the tire follows the set maximum angle; if the steering rod is damaged, the steering angle of the tire will still follow the original set maximum angle, and the tire will not turn too much due to damage to the rod, thereby damaging the half shaft and other transmission components.

[0024] Specifically, Figure 1-2 As shown, there are two steering wheels 3 symmetrically arranged on both sides of the steering mounting frame 1, and transverse tie rods 7 and swing arms 2 are arranged between the two sides of the steering mounting frame 1 and the steering wheels 3 on the corresponding sides. The transverse tie rod 7 is arranged on the upper side of the swing arm 2 on the corresponding side. Each steering wheel 3 can be rotatably installed on the ram horn 6, the transverse tie rod 7 is hinged to the upper part of the ram horn 6 on the corresponding side, the swing arm 2 is hinged to the lower part of the ram horn 6 on the corresponding side, and the hinge axis of the transverse tie rod 7 and the ram horn 6 is coaxial with the hinge axis of the swing arm 2 and the ram horn 6 on the corresponding side.

[0025] Swing arm limit blocks 4 are provided at both ends of the swing arm 2, and a limit space is formed between the two swing arm limit blocks 4. The limiting part is a ram horn limit block 5 arranged at the bottom of the ram horn 6. The ram horn limit block 5 is arranged between the swing arm limit blocks 4, so that the ram horn limit block 5 is limited by the two swing arm limit blocks 4, and then the steering wheel 3 is limited.

[0026] Furthermore, the ram's horn limit block 5 has two blocks arranged on both sides of the ram's horn 6, and the two ram's horn limit blocks 5 extend between the two swing arm limit blocks 4. Each ram's horn limit block 5 can cooperate with the swing arm limit block 4 on the corresponding side to limit the steering of the steering wheel 3.

[0027] The first limiting mechanism includes a steering column 8 limiting block arranged on the steering column 8 and a vehicle body limiting block arranged on the vehicle body. The vehicle body limiting blocks include two spaced-apart blocks, and the steering column 8 limiting block is located between the two vehicle body limiting blocks. The limiting of the steering column 8 is achieved by the cooperation between the two vehicle body limiting blocks and the steering column 8 limiting block.

[0028] The final limiting result of the steering limit is to stop the steering wheel 3 from turning at a certain angle. The traditional limiting method is through positive limiting, that is, limiting the rotation of the handlebar, thereby indirectly preventing the steering wheel 3 from turning. The new limiting structure directly applies the limit to the steering wheel 3, which plays a more direct and effective limiting role.

[0029] When the steering wheel 3 turns, the horn 6 of the outer wheel contacts the swing arm limit block 4 at the joint of the swing arm 2 through the horn limit block 5 attached to it, so as to limit the steering wheel 3.

[0030] like Figure 3-Figure 4As shown, the dual-limit steering system also includes a locking mechanism, which is arranged between the vehicle body and the steering column 8 to lock the rotation direction of the steering column 8.

[0031] The locking mechanism includes a locking assembly arranged between the steering column 8 and the body of the all-terrain vehicle, the locking assembly is detachably mounted on the body, a locking portion facing the locking assembly is arranged on the steering column 8, and the locking assembly cooperates with the locking portion to lock the rotation of the steering column 8. The locking assembly of the anti-theft locking mechanism cooperates with the locking portion to lock the steering column 8, so that the steering column 8 cannot rotate, and thus the all-terrain vehicle cannot be turned, thereby realizing mechanical locking, and achieving a double anti-theft effect with the ignition lock of the all-terrain vehicle, with good anti-theft effect, and even if the thief destroys it, the theft of the all-terrain vehicle cannot be achieved, and the anti-theft effect is good.

[0032] The locking mechanism also includes a mounting frame 9 and a connecting member 10. The mounting frame 9 is fixedly connected to the vehicle body. In this embodiment, the mounting frame 9 is arranged perpendicular to the travel direction of the all-terrain vehicle, and the mounting frame 9 is arranged on the front side of the travel direction of the all-terrain vehicle. The two ends of the mounting frame 9 are fixedly connected to the body of the all-terrain vehicle by bolts. The mounting frame 9 is arranged at a distance from the steering column 8. A mounting plate 901 is integrally arranged in the middle of the mounting frame 9. The mounting plate 901 is arranged horizontally. One end of the connecting member 10 is fixedly connected to the mounting plate 901, and the other end is installed with a locking assembly.

[0033] The connecting member 10 includes a connecting portion 1003, a transition portion 1002 and a mounting portion 1003. The transition portion 1002 is arranged between the connecting portion 1003 and the mounting portion 1003. The upper end of the transition portion 1002 is fixedly connected to the connecting portion 1003, and the lower end of the transition portion 1002 is fixedly connected to the mounting portion 1003. The connecting portion 1003 is horizontally arranged on the upper side of the mounting plate 901, and the connecting portion 1003 and the mounting plate 901 are fixedly connected by bolts. The transition portion 1002 is inclined and gradually approaches the steering column 8 from top to bottom. The transition portion 1002 is provided with a weight-reducing hole. The mounting portion 1003 is arranged vertically, and the mounting portion 1003 is located between the mounting frame 9 and the steering column 8 to avoid obstruction to the installation of the locking assembly.

[0034] The locking assembly includes an anti-theft lock 12, which is arranged on a side of the mounting portion 1003 away from the steering column 8, and the anti-theft lock 12 is fixedly connected to the mounting portion 1003 by bolts. A through hole is provided on the mounting portion 1003 for a lock tongue 1201 of the anti-theft lock 12 to pass through.

[0035] A locking plate 11 is fixedly mounted on the steering column 8. The locking plate 11 is arc-shaped and is fixedly connected to the steering column 8. The locking portion includes a locking hole 1101 provided on the locking plate 11. The locking hole 1101 is arranged opposite to a locking tongue 1201. When the steering column 8 needs to be locked, the steering column 8 only needs to be returned to the normal position, and then the locking tongue 1201 of the anti-theft lock 12 is extended into the locking hole 1101.

[0036] At the same time, in order to ensure that the locking tongue 1201 can smoothly extend into the locking hole 1101, the locking hole 1101 is elliptical, and the major axis is arranged along the rotation direction of the steering column 8, thereby ensuring that the locking tongue 1201 can smoothly extend into the locking hole 1101.

[0037] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A dual-limit steering system, characterized in that: It comprises a first position-limiting component arranged between a steering column (8) and a vehicle body, and a second position-limiting component arranged between a steering wheel (3) and the vehicle body; The second limiting assembly comprises a limiting portion protruding from the horn (6) of the steering wheel (3) and a limiting cavity provided on a transverse pull rod (7) connected to the horn (6) or on a swing arm (2) connected to the horn (6); the limiting portion is provided in the limiting cavity, and the steering angle of the steering wheel (3) is limited by the limiting portion.

2. The dual-limit steering system according to claim 1, characterized in that: The limiting cavity is an arc shape coaxial with the rotation axis of the horn (6).

3. The dual-limit steering system according to claim 1 or 2, characterized in that: Swing arm limit blocks (4) are symmetrically arranged on both sides of the swing arm (2), and the limit cavity is formed between the two swing arm limit blocks (4).

4. The dual-limit steering system according to claim 1, characterized in that: The limiting parts include two which are arranged at intervals along the horn (6), and the two limiting parts are both arranged in the limiting cavity.

5. The dual-limit steering system according to claim 1 or 4, characterized in that: The limiting portion is provided with a horn limiting block (5) on the horn (6), and the horn limiting block (5) extends into the limiting cavity.

6. The dual-limit steering system according to claim 1, characterized in that: It also includes a locking mechanism arranged between the vehicle body and the steering column (8).

7. The dual-limit steering system according to claim 6, characterized in that: The locking mechanism comprises a locking assembly arranged between a steering column (8) and a vehicle body, the locking assembly being detachably mounted on the vehicle body, a locking portion being arranged on the steering column (8) and facing the locking assembly, the locking assembly cooperating with the locking portion to lock the rotation of the steering column (8).

8. The dual-limit steering system according to claim 7, characterized in that: The locking assembly comprises an anti-theft lock (12), which is detachably mounted on a vehicle body, and a lock tongue (1201) of the anti-theft lock (12) is directly opposite to a locking portion and can extend into the locking portion.

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