Steering wheel multidirectional adjusting mechanism and reach forklift

Abstract

The utility model discloses a steering wheel multidirectional adjusting mechanism and a reach forklift. The steering wheel multidirectional adjusting mechanism comprises a steering wheel, a tactile feedback device, a sliding assembly, a swing assembly and an installation support. The steering wheel is connected with the tactile feedback device which controls the steering motor through electric signals. A steering wheel and a tactile feedback device are installed at the front end of the sliding assembly. The swinging assembly and the sliding assembly are connected and are in sliding fit, so that the steering wheel is adjusted front and back in the horizontal direction; the installation support is hinged to the swing assembly, so that the pitching angle of the steering wheel is adjusted around a hinge point. Through the swing assembly and the sliding assembly, accurate adjustment of the pitching angle of the steering wheel and adjustment of the steering wheel in the front-back direction are achieved. The steering wheel adjusting mechanism has the advantages of being simple in structure, convenient to operate and comfortable to operate.

Description

Technical Field

[0001] The utility model belongs to the technical field of reach-type forklifts, and in particular relates to a multi-directional adjustment mechanism for a steering wheel used in reach-type forklifts. Background Art

[0002] At present, most of the steering wheels of reach forklifts can be adjusted in only one direction, or the adjustment method is relatively complicated and cannot achieve stepless adjustment, and cannot meet the different requirements of drivers.

[0003] like Figure 1 As shown, it is a traditional steering wheel adjustment mechanism, which can only be adjusted forward and backward, and the pitch angle of the steering wheel cannot be adjusted. The forward and backward adjustment adopts a hole-shaft connection method, which has large sliding friction and is difficult to operate;

[0004] like Figure 2 As shown, it is a traditional steering wheel adjustment mechanism, which cannot adjust the pitch angle of the steering wheel and has a rigid operation. Summary of the invention

[0005] The utility model provides a multi-directional adjustment mechanism for a steering wheel, which solves the shortcomings of the prior art forklift steering wheel pitch angle and horizontal direction adjustment.

[0006] The utility model is implemented according to the following technical solutions:

[0007] In a first aspect, the utility model provides a steering wheel multi-directional adjustment mechanism, comprising:

[0008] A steering wheel and a tactile feedback device, wherein the steering wheel is connected to the tactile feedback device, and the tactile feedback device controls the steering motor through an electrical signal;

[0009] A sliding assembly, the steering wheel and the tactile feedback device are installed at the front end thereof;

[0010] The swing assembly is connected to the sliding assembly, and the two slide together to adjust the steering wheel forward and backward in the horizontal direction;

[0011] The mounting bracket is hinged to the swing assembly so that the steering wheel can be adjusted in pitch angle around the hinge point.

[0012] In some embodiments, the swing assembly includes:

[0013] A swing frame, provided with a slideway for movement of the sliding assembly, the tail end of the swing frame being hinged to the mounting bracket via a pin;

[0014] A swing plate is rigidly connected to a portion located at a hinge point of the swing frame, and an arc-shaped hole is provided on the swing plate;

[0015] The adjustment handle consists of a locking rod and a handle installed at the tail of the locking rod. The front threaded section of the locking rod vertically passes through the arc-shaped hole and is threadedly connected to the mounting bracket. After the swing frame rotates around the hinge point to a preset angle, the locking rod is tightened by the handle so that the step of the locking rod at the front threaded section presses the swing plate onto the mounting bracket.

[0016] In some embodiments, a limit plate is installed on the mounting bracket. After the adjustment handle is rotated outward to a preset angle, the limit plate will support the adjustment handle to limit the adjustment handle from being further rotated outward.

[0017] In some embodiments, the mounting bracket is provided with an energy absorbing device for buffering the swing component that is undergoing pitch angle adjustment.

[0018] In some embodiments, the energy absorbing device comprises:

[0019] A cylinder with an opening facing the swing assembly, fixed on the mounting bracket;

[0020] a spring, mounted in the cylinder;

[0021] One end of the sliding shaft extends into the cylinder body and contacts the spring, and the other end of the sliding shaft rests on the swing assembly under the action of the spring force.

[0022] In some embodiments, the sliding assembly comprises:

[0023] The sliding frame is composed of an annular plate, a sliding plate with a bend at the front end, and a guide plate. The annular plate is installed at the bend at the front end of the sliding plate. The guide plate is arranged on one side of the swing frame in the swing assembly and then fixed to the bottom surface of the sliding plate.

[0024] A sliding component, mounted on the guide plate and used in conjunction with a slideway in the swing assembly;

[0025] The locking component is used to fix the moving sliding frame and the swing assembly together.

[0026] In some embodiments, a plurality of fixed shafts perpendicular to the side surface are provided at intervals on the side surface of the guide plate, and the fixed shafts are step shafts; the sliding component is a deep groove ball bearing, and a deep groove ball bearing is mounted on each fixed shaft and axially fixed by a retaining ring; a plurality of deep groove ball bearings are assembled in the slideway in the swing assembly.

[0027] In some embodiments, the locking component comprises:

[0028] A pressing plate is arranged on the other side of the swing frame, and a plurality of fixed shafts are inserted into the through holes of the pressing plate, and the fixed shafts are clearance-matched with the through holes, so that the pressing plate can move axially;

[0029] A locking rod, which passes through the slideway in the pressure plate and the swing assembly and is fixed on the side of the guide plate in a manner perpendicular to the side of the guide plate;

[0030] A shaft sleeve and an adjusting knob, wherein the shaft sleeve is sleeved on a locking rod located outside the pressure plate, and the adjusting knob is threadedly mounted on the locking rod. Rotating the adjusting knob pushes the shaft sleeve to move axially, and then pushes the pressure plate to clamp the swing frame, thereby clamping the swing frame between the pressure plate and the guide plate.

[0031] In some embodiments, the mounting bracket is an L-shaped bracket as a whole, and the swing assembly is hinged on the inner side surface of the vertical portion of the mounting bracket.

[0032] In a second aspect, the utility model provides a reach forklift equipped with the above-mentioned steering wheel multi-directional adjustment mechanism.

[0033] Beneficial effects of the utility model:

[0034] Compared with the traditional adjustment structure, the utility model completes the stepless adjustment of the pitch angle and the horizontal direction of the steering wheel through the swing component and the sliding component. The energy absorption device performs buffering during the adjustment process, which is convenient to operate and accurate in adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0036] In the attached picture:

[0037] Figure 1 Schematic diagram of the steering wheel adjustment mechanism of the prior art Figure 1 ;

[0038] Figure 2 Schematic diagram of the steering wheel adjustment mechanism of the prior art Figure 2 ;

[0039] Figure 3 It is a schematic diagram of the overall structure of the multi-directional adjustment mechanism of the steering wheel of the present utility model;

[0040] Figure 4 It is a schematic diagram of the pitch angle adjustment of the steering wheel multi-directional adjustment mechanism of the utility model;

[0041] Figure 5 It is a schematic diagram of the front and rear adjustment of the multi-directional adjustment mechanism of the steering wheel of the utility model;

[0042] Figure 6 The utility model is a schematic diagram of the multi-directional adjustment mechanism of the steering wheel Figure 1 ;

[0043] Figure 7 The utility model is a schematic diagram of the multi-directional adjustment mechanism of the steering wheel Figure 2 ;

[0044] Figure 8 It is a structural schematic diagram of the sliding assembly of the utility model;

[0045] Fig. 9 It is a structural schematic diagram of the swing assembly of the utility model.

[0046] Figure symbols: 1-steering wheel, 2-tactile feedback device, 3-adjusting handle, 4-limiting plate, 5-mounting bracket, 6-swinging plate, 7-energy absorption device, 8-pin shaft, 9-swinging frame, 10-adjusting knob, 11-shaft sleeve, 12-sliding frame, 13-pressing plate;

[0047] 121-annular plate, 122-sliding plate, 123-guide plate, 124-deep groove ball bearing, 125-fixed shaft, 126-locking rod.

[0048] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0050] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] like Figure 3 , Figure 4 , Figure 5 As shown, a multi-directional adjustment mechanism of a steering wheel includes a steering wheel 1, a tactile feedback device 2, a sliding assembly, a swing assembly and a mounting bracket 5; the steering wheel 1 is connected to the tactile feedback device 2, and the tactile feedback device 2 controls the steering motor through an electrical signal; the front end of the sliding assembly is installed with the steering wheel 1 and the tactile feedback device 2; the swing assembly is connected to the sliding assembly, and the two slide together to adjust the steering wheel 1 forward and backward in the horizontal direction; the mounting bracket 5 is hinged to the swing assembly, so that the steering wheel 1 can adjust the pitch angle around the hinge point. The utility model realizes precise adjustment of the pitch angle of the steering wheel and adjustment of the front and rear directions through the swing assembly and the sliding assembly. The above-mentioned steering wheel adjustment mechanism has the advantages of simple structure, convenient operation and comfortable operation.

[0053] The above-mentioned swing assembly is further described below.

[0054] like Fig. 9 As shown, the swing assembly includes a swing frame 9, a swing plate 6 and an adjustment handle 3; the swing frame 9 is provided with a slideway for moving the sliding assembly, and the tail end of the swing frame 9 is hinged to the mounting bracket 5 through a pin shaft 8; the swing plate 6 is rigidly connected to the part located at the hinge point of the swing frame 9, and an arc-shaped hole is provided on the swing plate 6; the adjustment handle 3 is composed of a locking rod and a handle installed at the tail of the locking rod, and the front threaded section of the locking rod vertically passes through the arc-shaped hole and is threadedly connected to the mounting bracket 5. After the swing frame 9 is rotated around the hinge point to a preset angle, the locking rod is tightened by the handle, so that the step of the locking rod located at the front threaded section presses the swing plate 6 onto the mounting bracket 5.

[0055] Further solutions, such as Figure 3 As shown, a limit plate 4 is installed on the mounting bracket 5. After the adjusting handle 3 is rotated outwards to a preset angle, the limit plate 4 will support the adjusting handle 3 to limit the adjusting handle 3 from being further rotated outwards.

[0056] Further solutions, such as Figure 3 As shown, the mounting bracket 5 is provided with an energy absorbing device 7 for buffering the swing component that is undergoing pitch angle adjustment.

[0057] In a preferred embodiment, the energy absorbing device 7 includes a cylinder with an opening toward the swing assembly, a spring and a sliding shaft; the cylinder is fixed on the mounting bracket 5; the spring is installed in the cylinder; one end of the sliding shaft extends into the cylinder and contacts the spring, and the other end rests on the swing assembly under the action of the spring force.

[0058] The above sliding assembly is further described below.

[0059] like Figure 6 , Figure 7 , Figure 8 As shown, the sliding assembly includes a sliding frame 12, a sliding component and a locking component; the sliding frame 12 is composed of an annular plate 121, a sliding plate 122 with a bend at the front end and a guide plate 123, the annular plate 121 is installed at the front end bend of the sliding plate 122, and the guide plate 123 is arranged on one side of the swing frame 9 and fixed to the bottom surface of the sliding plate 122; the sliding component is installed on the guide plate 123 and is used in conjunction with the slideway in the swing assembly; the locking component is used to fix the moved sliding frame 12 and the swing assembly together.

[0060] Further solutions, such as Figure 8 As shown, a plurality of fixed shafts 125 perpendicular to the side surface are provided at intervals on the side surface of the guide plate 123, and the fixed shafts 125 are stepped shafts; the sliding component is a deep groove ball bearing 124, and a deep groove ball bearing 124 is mounted on each fixed shaft 125 and axially fixed by a retaining ring; a plurality of deep groove ball bearings 124 are assembled in the slideway in the swing frame 9.

[0061] Further solutions, such as Figure 6 , Figure 7 As shown, the locking component includes a pressure plate 13, a locking rod 126, a sleeve 11 and an adjusting knob 10. The pressure plate 13 is arranged on the other side of the swing frame 9, and a plurality of fixed shafts 125 are inserted into the through hole of the pressure plate 13. The fixed shafts 125 are clearance-matched with the through holes so that the pressure plate 13 can move axially. The locking rod 126 passes through the slideways in the pressure plate 13 and the swing frame 9 and is fixed on the side of the guide plate in a manner perpendicular to the side of the guide plate. The sleeve 11 is sleeved on the locking rod 126 located on the outside of the pressure plate 13, and the adjusting knob 10 is threadedly mounted on the locking rod 126. Rotating the adjusting knob 10 pushes the sleeve 11 to move axially, and then pushes the pressure plate 13 to press the swing frame 9, thereby clamping the swing frame 9 between the pressure plate 13 and the guide plate 123.

[0062] In a further solution, the mounting bracket 5 is an L-shaped bracket as a whole, and the swing assembly is hinged on the inner side surface of the vertical portion of the mounting bracket 5.

[0063] From the above, we can see that Figure 3 , Figure 4 , Figure 5As shown in the figure, the overall layout and operation diagram of the swing assembly, the sliding assembly, and the mounting bracket are shown. The various components are rigidly connected, and there is no need to arrange pipelines, and the mechanism is simple to assemble; the swing plate 6 is rigidly connected to the swing frame 9, and is connected to the mounting bracket 5 through the pin 8. The adjusting handle 3 passes through the swing plate 6 and is threadedly connected to the mounting bracket 5. The adjusting handle 3 is rotated counterclockwise, and the thread is screwed outward. After the adjusting handle 3 is rotated to a certain angle, the limit plate 4 will support the adjusting handle 3 to prevent the thread from being completely screwed out. The swing plate 6 will be separated from the mounting bracket 5 and can be swung by the pin 8. After the pitch angle is adjusted, the adjusting handle 3 is rotated clockwise to tighten the thread. The swing plate 6 is tightly attached to the mounting bracket 5 and fixed by friction. Angle adjustment; the steering wheel 1 is connected to the tactile feedback device 2, the tactile feedback device 2 is connected to the sliding frame 12, the sliding frame 12 is connected to the swing frame 9, the adjusting knob 10 is rotated counterclockwise, the pressure plate 13, the guide plate 123 and the swing frame 9 are loosened, and the sliding assembly can slide on the swing frame 9 through two deep groove ball bearings 124, so that the steering wheel 1 can be adjusted forward and backward in the horizontal direction. After the front and rear distance is adjusted, the adjusting knob 10 is tightened, the pressure plate 13, the guide plate 123 and the swing frame 9 are pressed tightly and fixed by friction; during the pitch angle adjustment process, the energy absorption device 7 gives the swing assembly a buffering force, and the adjustment process is more gentle and stable; the combination of the swing assembly and the sliding assembly can complete the angle and position adjustment in a large range.

[0064] The utility model also provides a reach-type forklift, which is equipped with the above-mentioned steering wheel multi-directional adjustment mechanism.

[0065] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0066] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0067] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A multi-directional adjustment mechanism for a steering wheel, characterized in that: include: A steering wheel and a tactile feedback device, wherein the steering wheel is connected to the tactile feedback device, and the tactile feedback device controls the steering motor through an electrical signal; A sliding assembly, the steering wheel and the tactile feedback device are installed at the front end thereof; The swing assembly is connected to the sliding assembly, and the two slide together to adjust the steering wheel forward and backward in the horizontal direction; The mounting bracket is hinged to the swing assembly so that the steering wheel can be adjusted in pitch angle around the hinge point.

2. A multi-directional adjustment mechanism for a steering wheel according to claim 1, characterized in that: The swing assembly comprises: A swing frame, provided with a slideway for movement of the sliding assembly, the tail end of the swing frame being hinged to the mounting bracket via a pin; A swing plate is rigidly connected to a portion located at a hinge point of the swing frame, and an arc-shaped hole is provided on the swing plate; The adjustment handle consists of a locking rod and a handle installed at the tail of the locking rod. The front threaded section of the locking rod vertically passes through the arc-shaped hole and is threadedly connected to the mounting bracket. After the swing frame rotates around the hinge point to a preset angle, the locking rod is tightened by the handle so that the step of the locking rod at the front threaded section presses the swing plate onto the mounting bracket.

3. A multi-directional adjustment mechanism for a steering wheel according to claim 2, characterized in that: A limit plate is installed on the mounting bracket. After the adjustment handle is rotated outwards to a preset angle, the limit plate will support the adjustment handle to limit the adjustment handle from being further rotated outwards.

4. A multi-directional adjustment mechanism for a steering wheel according to claim 1, characterized in that: The mounting bracket is provided with an energy absorbing device for buffering the swing component which is undergoing pitch angle adjustment.

5. A multi-directional adjustment mechanism for a steering wheel according to claim 4, characterized in that: The energy absorbing device comprises: A cylinder with an opening facing the swing assembly, fixed on the mounting bracket; a spring, mounted in the cylinder; One end of the sliding shaft extends into the cylinder body and contacts the spring, and the other end of the sliding shaft rests on the swing assembly under the action of the spring force.

6. The multi-directional adjustment mechanism of a steering wheel according to claim 1, characterized in that: The sliding assembly comprises: The sliding frame is composed of an annular plate, a sliding plate with a bend at the front end, and a guide plate. The annular plate is installed at the bend at the front end of the sliding plate. The guide plate is arranged on one side of the swing frame in the swing assembly and then fixed to the bottom surface of the sliding plate. A sliding component, mounted on the guide plate and used in conjunction with a slideway in the swing assembly; The locking component is used to fix the moving sliding frame and the swing assembly together.

7. A multi-directional adjustment mechanism for a steering wheel according to claim 6, characterized in that: A plurality of fixed shafts perpendicular to the side surface are arranged at intervals on the side surface of the guide plate, and the fixed shafts are step shafts; The sliding component is a deep groove ball bearing, and each fixed shaft is equipped with a deep groove ball bearing and axially fixed by a snap ring; A plurality of deep groove ball bearings are mounted in the slideways in the wobble assembly.

8. The multi-directional adjustment mechanism of a steering wheel according to claim 7, characterized in that: The locking component comprises: A pressing plate is arranged on the other side of the swing frame, and a plurality of fixed shafts are inserted into the through holes of the pressing plate, and the fixed shafts are clearance-matched with the through holes, so that the pressing plate can move axially; A locking rod, which passes through the slideway in the pressure plate and the swing assembly and is fixed on the side of the guide plate in a manner perpendicular to the side of the guide plate; A shaft sleeve and an adjusting knob, wherein the shaft sleeve is sleeved on a locking rod located outside the pressure plate, and the adjusting knob is threadedly mounted on the locking rod. Rotating the adjusting knob pushes the shaft sleeve to move axially, and then pushes the pressure plate to clamp the swing frame, thereby clamping the swing frame between the pressure plate and the guide plate.

9. The multi-directional adjustment mechanism of a steering wheel according to claim 1, characterized in that: The mounting bracket is an L-shaped bracket as a whole, and the swing assembly is hinged on the inner side surface of the vertical part of the mounting bracket.

10. A reach forklift, characterized in that: A steering wheel multi-directional adjustment mechanism according to any one of claims 1 to 9 is installed.

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