Height-adjustable steering system for a fork lift truck

Abstract

The utility model discloses a height adjusting steering system for forklift, including steering column and setting in the steering column end's steering wheel, still be installed on steering column and draw pin, steering column includes: sleeve no.

Description

Technical Field

[0001] This utility model relates to the field of forklift steering technology, specifically a height-adjustable steering system for forklifts. Background Technology

[0002] In forklift operating systems, the steering column height adjustment function is crucial for accommodating drivers of different heights and improving operational comfort and safety. Currently, the mainstream design used in the industry is an integrated single-stage adjustment mechanism. This structure typically uses a simple locking device to fix the steering column, offering only a limited number of discontinuous height adjustment levels, and in some models, it is even a fixed, non-adjustable design.

[0003] Such adjustment mechanisms have significant technical drawbacks: firstly, due to the lack of multi-level or continuous adjustment capabilities, they cannot achieve precise adaptation of the steering column height, making it difficult to meet the diverse ergonomic needs of drivers; secondly, their locking structure often suffers from insecure fixation and loosening after adjustment, affecting operational stability and driving safety. Furthermore, single-stage adjustment mechanisms lack structural rigidity, and under vibration and operational forces during vehicle operation, slight height shifts or retractions may occur, leading to driver posture deviations and further reducing operational comfort and control precision. Therefore, a height-adjustable steering system for forklifts is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a height-adjustable steering system for forklifts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a height-adjustable steering system for forklifts, comprising a steering column and a steering wheel disposed at the end of the steering column, wherein a pull pin is also installed on the steering column; the steering column includes: Sleeve 1 has several height adjustment holes; A rotating shaft is located inside a sleeve and together with the inner wall of the sleeve to form a sliding cavity; Sleeve 2 is inserted into the sliding cavity, and a rotating shaft 2 that is inserted into the rotating shaft 1 is installed inside sleeve 2. Several height adjustment holes 2 that are adapted to height adjustment holes 1 are opened on the outer circumferential surface of sleeve 2.

[0006] As a further embodiment of this utility model: a cross-shaped keyway is provided at the end of the first rotating shaft, and a cross-shaped key is provided at the end of the second rotating shaft, wherein the cross-shaped key is adapted to the cross-shaped keyway.

[0007] As a further embodiment of this utility model: the inner diameter of the second sleeve is greater than the outer diameter of the first shaft, and the outer diameter of the second sleeve is smaller than the inner diameter of the first sleeve.

[0008] As a further embodiment of this invention: a steering shaft is installed at the end of the steering column away from the steering wheel.

[0009] As a further embodiment of this utility model: a bracket is installed on the outer circumferential surface of the steering column, and a mounting bracket fixed to the instrument panel is provided on the bracket, and a handle is installed on the mounting bracket.

[0010] As a further embodiment of this utility model, the mounting bracket and the support are connected by a locking nut.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This application achieves precise adjustment and reliable fixation of the steering column height by setting multiple height adjustment holes 1 and 2 on sleeve 1 and sleeve 2 respectively, and using them in conjunction with a pull-out pin. The steering column height can be flexibly adjusted by pulling out the pull-out pin, and after adjustment, the position can be locked by re-inserting the pull-out pin into the corresponding height adjustment hole. The operation is simple and the adjustment accuracy is high. In contrast, the use of an integral single-stage adjustment mechanism often cannot achieve multi-stage adjustment and effective fixation, and the adjustment accuracy is limited. This application effectively overcomes the above defects and significantly improves the flexibility, accuracy and ease of use of steering column height adjustment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the steering system of this utility model; Figure 2 This is a schematic diagram of the steering column of this utility model; In the diagram: 1. Steering column; 11. Sleeve 1; 12. Shaft 1; 13. Shaft 2; 14. Sleeve 2; 15. Height adjustment hole 1; 16. Height adjustment hole 2; 2. Steering wheel; 3. Steering shaft; 4. Bracket; 5. Mounting bracket; 6. Handle; 7. Insert / remove pin. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-2 In this embodiment of the present invention, a height-adjustable steering system for a forklift includes a steering column 1 and a steering wheel 2 disposed at the end of the steering column 1. A pull-out pin 7 is also installed on the steering column 1. The steering column 1 includes: Sleeve 11 has several height adjustment holes 16; The rotating shaft 12 is located inside the sleeve 11 and together with the inner wall of the sleeve 11, forms a sliding cavity; Sleeve 2 14 is inserted into the sliding cavity, and a rotating shaft 2 13 inserted into the rotating shaft 1 12 is installed inside sleeve 2 14. Several height adjustment holes 2 15 that are adapted to height adjustment holes 1 16 are opened on the outer circumferential surface of sleeve 2 14.

[0015] Specifically, a rotating shaft 12 is fixedly installed inside the sleeve 11, and a sleeve 2 14, which is sleeved on the outer circumference of the rotating shaft 12, is also inserted into the sleeve 11. A rotating shaft 2 13 is fixedly installed inside the sleeve 2 14. The sleeve 11, rotating shaft 12, rotating shaft 2 13, and sleeve 2 14 are all coaxially arranged, and a steering wheel 2 is installed at the end of the rotating shaft 2 13 away from the rotating shaft 12. The number of height adjustment holes 16 and 25 is not limited. In this embodiment, preferably, there are three height adjustment holes 16 and 25. The interior of the height adjustment holes 16 and 25 is adapted to the end of the insertion pin 7, so that the end of the insertion pin 7 can be smoothly inserted into the interior of the height adjustment holes 16 and 25, thereby fixing the position of the sleeve 11 and sleeve 2 14.

[0016] When the height of the steering wheel 2 needs to be adjusted to accommodate drivers of different heights, first remove the plug pin 7, align the height adjustment holes 16 and 15 on sleeve 11 and sleeve 214 to the appropriate height. While adjusting the height of sleeve 214, the height of the steering wheel 2 and the internal rotating shaft 213 will be adjusted synchronously. Insert the plug pin 7 into the corresponding height adjustment holes 16 and 15 to fix the relative position of sleeve 11 and sleeve 214, thereby achieving the adjustment and fixation of the steering system height.

[0017] Please see Figure 2 In one embodiment, preferably, the end of the first rotating shaft 12 is provided with a cross-shaped keyway, and the end of the second rotating shaft 13 is provided with a cross-shaped key. The cross-shaped key is adapted to the cross-shaped keyway. Furthermore, when the cross-shaped key is inserted into the cross-shaped keyway, the first rotating shaft 12 and the second rotating shaft 13 are axially limited. When the second rotating shaft 13 rotates, the first rotating shaft 12 will also rotate along with it, thereby transmitting the direction of rotation.

[0018] Please see Figure 2 In one embodiment, preferably, the inner diameter of sleeve 2 14 is larger than the outer diameter of shaft 1 12, and the outer diameter of sleeve 2 14 is smaller than the inner diameter of sleeve 1 11, so that sleeve 2 14 can be better inserted into the interior of sleeve 1 11 during assembly, and can also provide a certain support force to avoid excessive gap between sleeve 1 11 and sleeve 2 14, which would affect the stability of steering column 1 when steering.

[0019] Please see Figure 1-2 In one embodiment, preferably, the steering column 1 is equipped with a steering shaft 3 at the end away from the steering wheel 2, and further, the end of the steering shaft 3 is connected to the end of sleeve 11 away from sleeve 2 14.

[0020] Please see Figure 1 In one embodiment, preferably, a bracket 4 is installed on the outer peripheral surface of the steering column 1, and a mounting bracket 5 fixed to the dashboard is provided on the bracket 4. The mounting bracket 5 and the bracket 4 are connected by a locking nut, and a handle 6 is installed on the mounting bracket 5.

[0021] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0022] Therefore, the above description is only a preferred embodiment of this application and is not intended to limit the scope of this application; that is, all equivalent modifications made in accordance with the scope of the claims of this application shall be within the protection scope of the claims of this application.

Claims

1. A height-adjustable steering system for a forklift, characterized in that, The steering column includes a steering column and a steering wheel disposed at the end of the steering column, and a pull pin is also installed on the steering column; the steering column includes: Sleeve 1 has several height adjustment holes; A rotating shaft is located inside a sleeve and together with the inner wall of the sleeve to form a sliding cavity; Sleeve 2 is inserted into the sliding cavity, and a rotating shaft 2 that is inserted into the rotating shaft 1 is installed inside sleeve 2. Several height adjustment holes 2 that are adapted to height adjustment holes 1 are opened on the outer circumferential surface of sleeve 2.

2. The height-adjustable steering system for forklifts according to claim 1, characterized in that, The first rotating shaft has a cross-shaped keyway at one end, and the second rotating shaft has a cross-shaped key at one end, the cross-shaped key being adapted to the cross-shaped keyway.

3. The height-adjustable steering system for forklifts according to claim 1, characterized in that, The inner diameter of the second sleeve is larger than the outer diameter of the first shaft, and the outer diameter of the second sleeve is smaller than the inner diameter of the first sleeve.

4. The height-adjustable steering system for forklifts according to claim 1, characterized in that, The steering column is fitted with a steering shaft at the end furthest from the steering wheel.

5. The height-adjustable steering system for forklifts according to claim 1, characterized in that, The outer circumferential surface of the steering column is equipped with a bracket, and the bracket is provided with a mounting bracket that is fixed to the instrument panel. The mounting bracket is equipped with a handle.

6. The height-adjustable steering system for forklifts according to claim 5, characterized in that, The mounting bracket and the support are connected by a lock nut.

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