Pedal type hydraulic steering column capable of being adjusted in multiple directions simultaneously

Abstract

The utility model relates to the technical field of tractors, in particular to a pedal type hydraulic steering column capable of being adjusted in multiple directions simultaneously, which comprises a base, a steering transmission shaft is mounted at the top end of the base, a steering pipe column is mounted on the upper portion of the outer surface of the steering transmission shaft, and a movable shell is mounted on the lower portion of the outer surface of the steering pipe column. The adjusting shell is mounted on the outer surface of the moving shell in a sleeving manner, and the adjusting shell can adjust the hydraulic steering column front and back; a support frame is mounted on one side of the outer wall of the base; when a user steps on the foot rest lever to cancel locking, the steering column is pulled forwards to drive the movable shell to move forwards, the hydraulic steering column can be adjusted forwards and backwards, then the steering column is pulled upwards to drive the movable shell to move upwards, and the hydraulic steering column can be adjusted up and down. Therefore, the front-back and up-down adjusting function of the hydraulic steering column can be achieved at the same time, the whole adjusting process is more convenient and faster, and the smoothness and efficiency during adjusting are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tractors, and in particular relates to a pedal-type hydraulic steering column which can be adjusted in multiple directions at the same time. Background Art

[0002] The hydraulic steering column of the tractor is an important component of the hydraulic steering system. It connects the steering wheel and the hydraulic steering gear, and is responsible for converting the driver's steering operation into hydraulic power, thereby driving the steering wheel to achieve steering. The hydraulic steering column is usually composed of a steering column, a steering wheel, a steering shaft, a universal joint and other components. Among them, the steering column is the main component that supports and fixes the steering shaft. It connects the cab and the chassis to ensure the stability and reliability of the steering system. The steering wheel is the main component for the driver to operate the steering, and the steering control of the vehicle is achieved by rotating the steering wheel.

[0003] In the existing design of tractor hydraulic steering columns, a significant shortcoming lies in the limitations of its adjustment mechanism. When the driver needs to adjust the steering column position to suit personal preferences or driving environment, he often faces a process that is not convenient enough. Specifically, the current system requires the driver to make forward and backward and up and down adjustments in steps. This segmented adjustment method not only increases the complexity of the operation, but also significantly reduces the smoothness and efficiency of the adjustment. Each adjustment requires repositioning and adjustment, making the entire process cumbersome and time-consuming, and unable to meet the high standards of modern drivers for instant response and efficient operation. In addition, this multi-step adjustment mechanism also invisibly weakens the driver's comfort experience during driving. In the pursuit of efficient operation and long-distance driving, frequent and complex adjustment steps will undoubtedly increase the driver's burden and affect his sense of control over the vehicle. Utility Model Content

[0004] The utility model aims to provide a foot-operated hydraulic steering column which can be adjusted in multiple directions at the same time, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously, comprising:

[0007] A base, a steering transmission shaft is installed on the top of the base, a steering column is installed on the upper part of the outer surface of the steering transmission shaft, and a moving shell is installed on the lower part of the outer surface of the steering column;

[0008] An adjusting shell, wherein the adjusting shell is sleeved and mounted on the outer surface of the moving shell, and the adjusting shell can realize the front and rear adjustment of the hydraulic steering column;

[0009] One side of the outer wall of the base is provided with a support frame, the inner side of the support frame is provided with a foot pedal rod, the inner side of the foot pedal rod is provided with a control rod, the top end of the foot pedal rod is provided with a foot pedal, the bottom end of the foot pedal rod is provided with a support spring, and the bottom end of the support spring is mounted on the bottom wall of the support frame. A connecting screw is mounted on the outer wall of the foot pedal rod, a connecting nut is mounted on the outer surface of the connecting screw, and a guiding groove is formed in the rear side of the outer wall of the support frame.

[0010] Preferably, a fixing frame is mounted on the lower part of the outer wall of the moving shell, and upper and lower adjusting grooves are formed on both sides of the outer wall of the moving shell.

[0011] Preferably, upper and lower front and rear adjusting grooves are formed on both sides of the outer wall of the adjusting shell. Screws are mounted in both of the front and rear adjusting grooves. An extrusion spring is mounted on the upper part of the inner wall of the adjusting shell. The other end of the extrusion spring is provided with a fixing frame, and the outer wall of the fixing frame is mounted together with the two screws. A screw nut is arranged inside the fixing frame.

[0012] Preferably, both of the front and rear adjusting grooves are arranged in an arc structure. Guide blocks are arranged in the middle of the outer surfaces of the two screws, and the two guide blocks are respectively slidably connected with the two front and rear adjusting grooves.

[0013] Preferably, a connecting sleeve is arranged on the screw nut, and two cross universal joints are arranged on the steering transmission shaft.

[0014] Preferably, the control rod comprises a control pull tube, a control pull rod, a spiral groove and an adjusting nut. The control pull rod is mounted on the top end of the control pull tube. The spiral groove is arranged on the lower part of the outer surface of the control pull rod. The adjusting nut is mounted on the outer surface of the control pull rod. One end of the control pull tube far away from the control pull rod is mounted on the inner side of the foot pedal rod.

[0015] Preferably, the lower part of the outer surface of the control pull tube is arranged in a bent structure. The control pull rod is arranged in an L-shaped structure, and the upper part of the outer surface of the control pull rod is mounted on the screw nut.

[0016] Preferably, an integral structure is arranged between the support frame and the base, and the guiding groove is arranged in an arc structure.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] (1) The present utility model provides a movable housing and an adjusting housing on the outer surface of the steering column. When the user steps on the foot pedal to cancel the locking, pulling the steering column forward drives the movable housing to move forward, enabling the front-back adjustment of the hydraulic steering column. Then, pulling the steering column upward drives the movable housing to move upward, allowing for the up-down adjustment of the hydraulic steering column. Thus, the front-back and up-down adjustment functions of the hydraulic steering column can be achieved simultaneously, making the entire adjustment process more convenient and rapid, and also enhancing the smoothness and efficiency during adjustment.

[0019] (2) The present utility model is equipped with a foot pedal on the support frame. By stepping on the foot pedal, the support spring contracts and pushes the control pull tube upward, causing the control pull rod to push upward to loosen the screw nut and cancel the locking, enabling multi-directional adjustment of the hydraulic steering column. When the foot is released, under the elastic action of the support spring, the control pull rod is pulled downward to lock the screw nut. The hydraulic steering column uses the foot pedal method to adjust the operating angle, making it more convenient and fast to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a perspective view of the present utility model;

[0021] Figure 2 is of the present utility model Figure 1 an enlarged view of A in

[0022] Figure 3 is a perspective view of the present utility model;

[0023] Figure 4 is of the present utility model Figure 3 an enlarged view of B in

[0024] Figure 5 is a perspective view of the control lever of the present utility model;

[0025] In the figure: 1, base; 2, steering drive shaft; 3, steering column; 4, movable housing; 41, up-down adjustment groove; 5, adjusting housing; 6, fixed frame; 7, support frame; 8, foot pedal; 9, control lever; 10, footrest; 11, support spring; 12, connecting screw; 13, connecting nut; 14, guide groove;

[0026] 51, front-back adjustment groove; 52, screw; 53, compression spring; 54, fixed frame; 55, screw nut;

[0027] 91, control pull tube; 92, control pull rod; 93, spiral groove; 94, adjusting nut. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1:

[0030] Please refer to Figure 1 - Figure 5 As shown, a foot-operated hydraulic steering column that can be adjusted in multiple directions simultaneously includes:

[0031] A base 1, a steering drive shaft 2 is installed at the top of the base 1, a steering column 3 is installed on the upper part of the outer surface of the steering drive shaft 2, and a moving shell 4 is installed on the lower part of the outer surface of the steering column 3;

[0032] An adjusting shell 5 is sleeved and installed on the outer surface of the moving shell 4, and the adjusting shell 5 can realize the front-back adjustment of the hydraulic steering column;

[0033] On one side of the outer wall of the base 1, a support frame 7 is installed. Inside the support frame 7, a foot lever 8 is installed. Inside the foot lever 8, a control lever 9 is installed. At the top of the foot lever 8, a foot pedal 10 is installed. At the bottom of the foot lever 8, a support spring 11 is installed, and the bottom end of the support spring 11 is installed on the bottom wall of the support frame 7. A connecting screw 12 is installed on the outer wall of the foot lever 8, a connecting nut 13 is installed on the outer surface of the connecting screw 12, and a guiding groove 14 is opened at the rear side of the outer wall of the support frame 7.

[0034] It can be seen from Figure 1 and Figure 2 that a fixing frame 6 is installed on the lower part of the outer wall of the moving shell 4, and upper and lower adjusting grooves 41 are opened on both sides of the outer wall of the moving shell 4;

[0035] On the upper parts of both sides of the outer wall of the adjusting shell 5, front-back adjusting grooves 51 are opened. Screws 52 are installed in both of the two front-back adjusting grooves 51. An extrusion spring 53 is installed on the upper part of the inner wall of the adjusting shell 5. The other end of the extrusion spring 53 is installed with a fixing frame 54, and the outer wall of the fixing frame 54 is installed together with the two screws 52. A screw nut 55 is arranged inside the fixing frame 54.

[0036] As can be seen from the above, when the driver needs to adjust the position of the hydraulic steering column to suit personal preferences or the driving environment, the driver can step on the pedal 10 on the pedal lever 8 to cancel the locking of the screw nut 55 on the screw 52 and loosen the front-back adjustment slots 51 and the up-down adjustment slots 41 on both sides. At this time, by pulling the steering column 3 forward, the moving housing 4 is driven to move forward, so that the screw 52 slides in the front-back adjustment slot 51, and the hydraulic steering column can be adjusted back and forth. Then, by pulling the steering column 3 upward, the moving housing 4 is driven to move upward, so that the screw 52 slides in the up-down adjustment slot 41, and the hydraulic steering column can be adjusted up and down. Thus, the front-back and up-down adjustment functions of the entire hydraulic steering column can be realized simultaneously, making the entire adjustment process more convenient and fast, improving the smoothness and efficiency during adjustment, meeting the high standards of modern drivers for instant response and efficient operation. Moreover, this mechanism that can be adjusted in multiple directions simultaneously can improve the comfort experience of the driver during driving. In the context of pursuing efficient operation and long-distance driving, the simple adjustment steps can reduce the burden on the driver and strengthen their sense of control over the vehicle.

[0037] Specifically, referring to Figure 1 and Figure 2 As shown, both of the two front-back adjustment slots 51 are arranged in an arc structure. Guide blocks are arranged in the middle of the outer surfaces of the two screws 52, and the two guide blocks are respectively slidably connected to the two front-back adjustment slots 51; a connecting sleeve is arranged on the screw nut 55, and two universal joint crosses are arranged on the steering transmission shaft 2.

[0038] As can be seen from the above, the arc-shaped front-back adjustment slot 51 can play a guiding role for the screw 52, the guide block is convenient for the screw 52 to slide in the front-back adjustment slot 51, the connecting sleeve is beneficial to the connection between the screw nut 55 and the control pull rod 92, and the universal joint cross is convenient for adjusting the angle of the steering transmission shaft 2.

[0039] Embodiment 2:

[0040] Referring to Figure 4 and Figure 5 As shown, the control lever 9 includes a control pull tube 91, a control pull rod 92, a spiral groove 93 and an adjusting nut 94. The control pull rod 92 is installed at the top of the control pull tube 91. The spiral groove 93 is arranged at the lower part of the outer surface of the control pull rod 92. The adjusting nut 94 is installed on the outer surface of the control pull rod 92. One end of the control pull tube 91 away from the control pull rod 92 is installed on the inner side of the pedal lever 8.

[0041] As described above, when the driver steps on the foot pedal 10, the foot pedal rod 8 is pressed down, causing the support spring 11 to contract and the connecting screw rod 12 to slide and be limited in the guide groove 14. At this time, the foot pedal rod 8 can stably push the control pull tube 91 upward, causing the control pull rod 92 to push upward to loosen and cancel the locking of the screw nut 55, so that the two slides will loosen, and the hydraulic steering column can be adjusted in multiple directions. When the foot is released, under the elastic action of the support spring 11, the foot pedal rod 8 pulls the control pull tube 91 downward, causing the control pull rod 92 to pull downward to lock the screw nut 55, so that the two slides are tightened, and the entire hydraulic steering column can be locked. Furthermore, the hydraulic steering column uses a foot-operated method to adjust the operating angle, which is more convenient and fast to use, improving the practicability. And through the spiral groove 93 and the adjusting nut 94, the control pull rod 92 can be retracted into the control pull tube 91 or pulled out of the control pull tube 91 to adjust the length of the control lever 9 so that the pulling force is adjusted to the most suitable value, facilitating foot operation.

[0042] Preferably, referring to Figure 4 and Figure 5 As shown, the lower part of the outer surface of the control pull tube 91 is set as a curved structure, the control pull rod 92 is set as an L-shaped structure, and the upper part of the outer surface of the control pull rod 92 is installed on the screw nut 55; the support frame 7 and the base 1 are set as an integrated structure, and the guide groove 14 is set as an arc-shaped structure.

[0043] As described above, the curved control pull tube 91 can avoid the outer surface of the steering drive shaft 2 without affecting the movement of the control pull tube 91. The L-shaped control pull rod 92 is convenient for its connection with the screw nut 55; the integration can improve the firmness of the support frame 7 and the base 1, and the arc-shaped guide groove 14 can guide the connecting screw rod 12.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foot-operated hydraulic steering column that can be adjusted in multiple directions at the same time, characterized in that: include: A base (1), a steering transmission shaft (2) being mounted on the top of the base (1), a steering column (3) being mounted on the upper portion of the outer surface of the steering transmission shaft (2), and a moving shell (4) being mounted on the lower portion of the outer surface of the steering column (3); An adjusting shell (5), wherein the adjusting shell (5) is sleeved and mounted on the outer surface of the moving shell (4), and the adjusting shell (5) can realize front and rear adjustment of the hydraulic steering column; A support frame (7) is installed on one side of the outer wall of the base (1), a pedal rod (8) is installed on the inner side of the support frame (7), a joystick (9) is installed on the inner side of the pedal rod (8), a foot pedal (10) is installed on the top end of the pedal rod (8), a support spring (11) is installed on the bottom end of the pedal rod (8), and the bottom end of the support spring (11) is installed on the bottom wall of the support frame (7), a connecting screw (12) is installed on the outer wall of the pedal rod (8), a connecting nut (13) is installed on the outer surface of the connecting screw (12), and a guide groove (14) is opened on the rear side of the outer wall of the support frame (7).

2. A foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 1, characterized in that: A fixing frame (6) is installed at the lower part of the outer wall of the movable shell (4), and upper and lower adjustment grooves (41) are provided on both sides of the outer wall of the movable shell (4).

3. The foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 1, characterized in that: Front and rear adjustment grooves (51) are provided at the upper parts of both sides of the outer wall of the adjustment shell (5), screws (52) are installed in the two front and rear adjustment grooves (51), a pressing spring (53) is installed at the upper part of the inner wall of the adjustment shell (5), a fixing frame (54) is installed at the other end of the pressing spring (53), and the outer wall of the fixing frame (54) is installed together with the two screws (52), and a screw nut (55) is arranged inside the fixing frame (54).

4. A foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 3, characterized in that: The two front and rear adjustment slots (51) are both arranged as arc-shaped structures, and guide blocks are arranged in the middle of the outer surfaces of the two screws (52), and the two guide blocks are respectively slidably connected to the two front and rear adjustment slots (51).

5. The foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 3, characterized in that: The screw nut (55) is provided with a connecting sleeve, and the steering transmission shaft (2) is provided with two cross-axis universal joints.

6. The foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 1, characterized in that: The operating rod (9) comprises an operating pull tube (91), an operating rod (92), a spiral groove (93) and an adjusting nut (94); the operating rod (92) is mounted on the top end of the operating pull tube (91); the spiral groove (93) is arranged at the lower part of the outer surface of the operating rod (92); the adjusting nut (94) is mounted on the outer surface of the operating rod (92); and the end of the operating pull tube (91) away from the operating rod (92) is mounted on the inner side of the pedal rod (8).

7. The foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 6, characterized in that: The lower portion of the outer surface of the operating pull tube (91) is arranged as a curved structure, the operating pull rod (92) is arranged as an L-shaped structure, and the upper portion of the outer surface of the operating pull rod (92) is mounted on the screw nut (55).

8. The foot-operated hydraulic steering column capable of being adjusted in multiple directions simultaneously according to claim 1, characterized in that: The support frame (7) and the base (1) are arranged as an integrated structure, and the guide groove (14) is arranged as an arc-shaped structure.

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