Steering wheel steering mechanism with low mounting surface for fork lift truck

Abstract

The invention relates to the technical field of steering wheel steering mechanisms, and particularly discloses a steering wheel steering mechanism with a low mounting surface for a fork lift truck, which comprises a fork lift truck main body comprising a handle, wheels and the like; the limiting mechanism is located below the handle, and the limiting mechanism can limit steering of the wheels; when the forklift truck is used, an operator can make the forklift truck body go straight when not using the limiting mechanism, direction deflection caused by unbalance of heavy objects borne by the forklift truck body is avoided, when the operator tightly pinches a shifting plate, the steering mechanism is located between the limiting mechanism and the wheels, and the steering mechanism can turn the wheels through the steering mechanism. The handle can rotate left and right, the steering mechanism can change the direction of the wheels through the left-right rotation direction of the handle, and therefore the advancing direction of the fork lift truck body is changed, and an operator can conveniently steer the fork lift truck body.

Description

Technical Field

[0001] The invention relates to the technical field of steering wheel steering mechanisms, in particular to a steering wheel steering mechanism with a low mounting surface for a stacker. Background Art

[0002] A forklift refers to a variety of wheeled transport vehicles that can load, unload, stack, and transport palletized cargo over short distances. Forklifts are widely used in factory workshops, warehouses, circulation and distribution centers, ports, stations, airports, cargo yards, etc. They can also enter cabins, carriages, and containers to load, unload, and transport palletized cargo. They are essential equipment for pallet and container transportation.

[0003] When using a forklift, since the forklift usually carries heavy objects, the heavy objects press on the forklift, causing greater pressure on the wheels at the bottom of the forklift. Excessive pressure makes it difficult for the forklift to turn, and the operator can only use force to adjust the direction. Excessive force may cause excessive turning or accidentally hitting other objects, while too little force will make it impossible to turn, which is very inconvenient to use. For this reason, we propose a steering wheel steering mechanism with a low mounting surface for a forklift. Summary of the invention

[0004] The purpose of the present invention is to provide a steering wheel mechanism with a low mounting surface for a forklift to solve the problem in the above background technology that excessive force may lead to excessive steering or accidental collision with other objects, while insufficient force may result in failure to steer, which is very inconvenient during use.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A steering wheel steering mechanism with a low mounting surface for a stacker, comprising a stacker body, the stacker body comprising a handle, wheels, etc.;

[0006] A limiting mechanism, which is located below the handle and can limit the steering of the wheels;

[0007] The steering mechanism is located between the limiting mechanism and the wheel, and the steering mechanism can assist the handle to steer the wheel.

[0008] Among them, the limiting mechanism includes a connecting rod fixedly connected to the lower end of the handle, and the end of the connecting rod away from the handle is fixedly connected to the limiting box. A sliding groove is provided at the bottom of the handle, and a disengagement piece is provided inside the sliding groove to disengage the limit box from the main body of the forklift.

[0009] Among them, the disengagement part includes a sliding rod slidably connected inside the sliding groove, the end of the sliding rod away from the inner wall of the sliding groove is located outside the handle, the end of the sliding rod away from the sliding groove is fixedly connected to a toggle plate, the bottom of the toggle plate is fixedly connected to a steel cable, the end of the steel cable away from the toggle plate is located inside a limit box, and a limit part that can limit the rotation of the handle is arranged inside the limit box.

[0010] Among them, the limiting part includes a limiting hole opened at the upper end of the limiting box, the steel cable passes through the limiting hole and is slidably connected to the limiting hole, a spring is fixedly connected to the inner wall of the limiting box, the end of the spring away from the connecting rod is fixedly connected to a sliding plate, the sliding plate is located inside the limiting box and is slidably connected to the limiting box, a rotating rod is rotatably connected to the bottom of the limiting box, the rotating rod is fixedly connected to the forklift body, the sliding plate is located on the periphery of the rotating rod and is rotatably connected to the rotating rod, the sliding plate is fixedly connected to the clamping rod at one end away from the spring, the forklift body has a clamping hole, the clamping rod is located inside the clamping hole and is slidably connected to the clamping hole.

[0011] Among them, the steering mechanism includes a driving rod fixedly connected to the bottom of the sliding plate, a driving groove is arranged above the forklift body, the driving rod is located inside the driving groove and is slidably connected to the driving groove, an extension rod is fixedly connected to one end of the driving rod away from the sliding plate, and a steering member capable of driving the wheels to turn is arranged at one end of the extension rod away from the driving rod.

[0012] The driving groove is arc-shaped, and the driving rod slides along the inner wall of the driving groove.

[0013] Among them, the steering part includes two groups of steering assemblies arranged at the bottom of the forklift body, each steering assembly includes two steering rods fixedly connected at the bottom of the forklift body, each steering rod is rotatably connected to the outer periphery of the steering plate, each steering plate is rotatably connected through a fixed plate near one end of the extension rod, a steering hole is opened in the center of the fixed plate, the extension rod is located inside the steering hole and is slidably connected to the steering hole.

[0014] Among them, the steering part includes a fixed box fixedly connected to the bottom of the forklift body, an extension rod is located inside the fixed box and slidably connected to the fixed box, an electromagnet 1 is fixedly connected to the inner wall of the fixed box, an electromagnet 2 is arranged at the end of the extension rod away from the electromagnet 1, and the electromagnet 2 is fixedly connected to the inner wall of the fixed box, a hydraulic cylinder 1 and a hydraulic cylinder 2 are arranged at the bottom of the forklift body, the hydraulic cylinder 1 is located at one end of the electromagnet and is slidably connected to the hydraulic rod 1, the hydraulic cylinder 2 is close to the end of the electromagnet 2 and is slidably connected to the hydraulic rod 2, the electromagnet 1 is circuit-connected to the hydraulic cylinder 1, the electromagnet 2 is circuit-connected to the hydraulic cylinder 2, the hydraulic rod 1 is rotatably connected to the steering plate near the end of the electromagnet 1, and the hydraulic rod 2 is rotatably connected to the steering plate near the end of the electromagnet 2.

[0015] The toggle plate is arc-shaped and can fit with the outer wall of the handle.

[0016] The present invention has at least the following beneficial effects:

[0017] When the present invention is in use, the operator can make the stacker body go straight without using the limiting mechanism, so as to avoid the stacker body from deflecting due to the imbalance of the heavy objects carried by the stacker body. When the operator squeezes the toggle plate, the handle can be rotated left and right, and the steering mechanism can change the direction of the wheels by rotating the handle left and right, thereby changing the direction of travel of the stacker body, making it convenient for the operator to turn the stacker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the stacker of the present invention;

[0019] Figure 2 This is a schematic diagram of the front structure of the handle of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the handle of the present invention;

[0021] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of the middle A area;

[0022] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure of the limit box of the present invention;

[0024] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle C area;

[0025] Figure 8 It is a schematic diagram of the overall structure of the connecting rod of the present invention;

[0026] Fig. 9 It is a schematic diagram of the bottom structure of the stacker of the present invention;

[0027] Fig.10 It is a schematic diagram of the overall structure of the steering member of the present invention;

[0028] Fig.11 for Fig.10 Schematic diagram of the enlarged structure of the middle D area;

[0029] Fig.12 This is a structural diagram of Embodiment 2;

[0030] Fig.13 for Fig.12 Schematic diagram of the enlarged structure of the middle E area;

[0031] Fig.14 This is a schematic diagram of the bottom structure of a stacker truck according to the present invention;

[0032] Fig.15 for Fig.14Schematic diagram of the enlarged structure of the middle F area.

[0033] In the figure: 1. stacker body; 11. handle; 12. wheel; 2. limit mechanism; 21. connecting rod; 22. limit box; 23. sliding slot; 3. steering mechanism; 31. drive rod; 32. drive slot; 33. extension rod; 4. disengagement member; 41. sliding rod; 42. toggle plate; 43. steel cable; 5. limit member; 51. limit hole; 52. spring; 53. sliding plate; 54. rotating rod; 55. clamping rod; 56. clamping hole; 6. steering member; 61. steering assembly; 62. steering rod; 63. steering plate; 64. fixing plate; 65. steering hole; 7. fixing box; 71. electromagnet 1; 72. electromagnet 2; 73. hydraulic cylinder 1; 74. hydraulic cylinder 2; 75. hydraulic rod 1; 76. hydraulic rod 2. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figure 1-11 , the present invention provides a technical solution: a steering wheel steering mechanism with a low mounting surface for a stacker, comprising a stacker body 1, the stacker body 1 comprising a handle 11, a wheel 12, etc.;

[0037] A limiting mechanism 2, which is located below the handle 11 and can limit the steering of the wheel 12;

[0038] A steering mechanism 3, which is located between the limiting mechanism 2 and the wheel 12, and can assist the handle 11 in steering the wheel 12;

[0039] When the present invention is in use, the operator can make the stacker body 1 go straight without using the limiting mechanism 2, so as to avoid the stacker body 1 from deflecting due to the imbalance of the heavy objects carried by the stacker body 1. When the operator squeezes the toggle plate 42, the handle 11 can be rotated left and right, and the steering mechanism 3 can change the direction of the wheel 12 by rotating the handle 11 left and right, thereby changing the direction of travel of the stacker body 1, making it convenient for the operator to turn the stacker body 1.

[0040] The limiting mechanism 2 includes a connecting rod 21 fixedly connected to the lower end of the handle 11, and the end of the connecting rod 21 away from the handle 11 is fixedly connected to the limiting box 22, a sliding groove 23 is provided at the bottom of the handle 11, and a disengagement member 4 is provided inside the sliding groove 23 for disengaging the limiting box 22 from the main body 1 of the stacker. The disengagement member 4 includes a sliding rod 41 slidably connected inside the sliding groove 23, and one end of the sliding rod 41 away from the inner wall of the sliding groove 23 is located outside the handle 11, and one end of the sliding rod 41 away from the sliding groove 23 is fixedly connected to a toggle plate 42, and a steel cable 43 is fixedly connected to the bottom of the toggle plate 42, and one end of the steel cable 43 away from the toggle plate 42 is located inside the limiting box 22, and a limiting member 5 capable of limiting the rotation of the handle 11 is provided inside the limiting box 22, and the limiting member 5 includes a limiting member 5 at the upper end of the limiting box 22 A limiting hole 51 is opened, and the steel cable 43 passes through the limiting hole 51 and is slidably connected to the limiting hole 51. A spring 52 is fixedly connected to the inner wall of the limiting box 22, and a sliding plate 53 is fixedly connected to the end of the spring 52 away from the connecting rod 21. The sliding plate 53 is located inside the limiting box 22 and is slidably connected to the limiting box 22. A rotating rod 54 is rotatably connected to the bottom of the limiting box 22. The rotating rod 54 is fixedly connected to the stacker body 1, and the sliding plate 53 is located at the periphery of the rotating rod 54 and is rotatably connected to the rotating rod 54. A clamping rod 55 is fixedly connected to the end of the sliding plate 53 away from the spring 52. A clamping hole 56 is opened in the stacker body 1, and the clamping rod 55 is located inside the clamping hole 56 and is slidably connected to the clamping hole 56. The toggle plate 42 is arc-shaped, and the toggle plate 42 can fit the outer wall of the handle 11.

[0041] When the toggle plate 42 is not pinched, the clamping rod 55 at the bottom of the sliding plate 53 is located inside the clamping hole 56. At this time, the handle 11 cannot be rotated, so that the stacker body 1 can only move straight. When the stacker body 1 needs to turn, the operator pinches the toggle plate 42 to make the sliding rod 41 at one end of the toggle plate 42 slide in the sliding groove 23. At the same time, the steel cable 43 at the end of the toggle plate 42 away from the sliding rod 41 pulls the sliding plate 53 through the limiting hole 51. At this time, the sliding plate 53 squeezes the spring 52, and the spring 52 accumulates force, and the limiting rod at the bottom of the sliding plate 53 The limit hole 51 is extended out, and the limit box 22 is disengaged from the stacker body 1 at this time. When the handle 11 is turned, the handle 11 drives the connecting rod 21 to rotate around the rotating rod 54, and the stacker body 1 can be steered through the steering mechanism 3. After the steering is completed, the toggle plate 42 is released, and the spring 52 is reset to push the sliding plate 53 to slide in the limit box 22. The sliding plate 53 pulls the toggle plate 42 to slide downward through the steel cable 43. When the clamping rod 55 slides to the top of the clamping hole 56, the clamping rod 55 slides into the inside of the clamping hole 56, which is convenient for the stacker body 1 to go straight.

[0042] The steering mechanism 3 includes a driving rod 31 fixedly connected to the bottom of the sliding plate 53, a driving groove 32 is provided above the stacker body 1, the driving rod 31 is located inside the driving groove 32 and is slidably connected to the driving groove 32, an end of the driving rod 31 away from the sliding plate 53 is fixedly connected to an extension rod 33, and an end of the extension rod 33 away from the driving rod 31 is provided with a steering member 6 capable of driving the wheel 12 to turn, the driving groove 32 is arc-shaped, and the driving rod 31 slides along the inner wall of the driving groove 32, and the steering member 6 includes two groups of steering assemblies 61 arranged at the bottom of the stacker body 1, each steering assembly 61 includes two steering rods 62 fixedly connected to the bottom of the stacker body 1, each steering rod 62 is rotatably connected to a steering plate 63 on the periphery, and each steering plate 63 is rotatably connected to one end of the extension rod 33 through a fixed plate 64, a steering hole 65 is provided in the center of the fixed plate 64, and the extension rod 33 is located inside the steering hole 65 and is slidably connected to the steering hole 65.

[0043] When the stacker body 1 needs to turn, the clamping rod 55 is first slid out of the clamping hole 56, and then the handle 11 is turned. The handle 11 and the connecting rod 21 are located above the rotating rod 54 and rotate. At this time, the driving rod 31 located at the bottom of the sliding plate 53 is located in the driving groove 32 and slides. The rotation direction of the handle 11 is opposite to the sliding direction of the driving rod 31. When the driving rod 31 is located inside the driving groove 32 and slides, the driving rod 31 slides in the steering hole 65 opened in the center of the fixed plate 64 at one end of the sliding plate 53. The driving rod 31 abuts against the inner wall of the steering hole 65 and pushes the fixed plate 64 to slide under the stacker body 1. The fixed plate 64 drives the steering plate 63 to rotate around the steering rod 62. Since the steering plate 63 is rotatably connected to the fixed plate 64, the steering plate 63 can drive the wheel 12 to rotate when it rotates, so that the stacker body 1 can be turned when the handle 11 is turned, so as to avoid the stacker body 1 carrying too heavy objects causing the operator to be unable to control the steering angle of the stacker body 1.

[0044] Embodiment 2

[0045] See also Figure 12-15 The steering member 6 includes a fixed box 7 fixedly connected to the bottom of the stacker body 1, an extension rod 33 is located inside the fixed box 7 and is slidably connected to the fixed box 7, an electromagnet 1 71 is fixedly connected to the inner wall of the fixed box 7, an electromagnet 2 72 is provided at the end of the extension rod 33 away from the electromagnet 1 71, and the electromagnet 2 72 is fixedly connected to the inner wall of the fixed box 7, a hydraulic cylinder 1 73 and a hydraulic cylinder 2 74 are provided at the bottom of the stacker body 1, the hydraulic cylinder 1 73 is located at the end of the electromagnet 1 71 and is slidably connected to a hydraulic rod 1 75, and the hydraulic cylinder 2 74 is slidably connected to the end of the electromagnet 2 72. The electromagnet 1 71 is connected to the hydraulic cylinder 1 73 in circuit, the electromagnet 2 72 is connected to the hydraulic cylinder 2 74 in circuit, the hydraulic rod 1 75 is rotatably connected to the steering plate 63 near one end of the electromagnet 1 71, and the hydraulic rod 2 76 is rotatably connected to the steering plate 63 near one end of the electromagnet 2 72;

[0046] When the handle 11 is rotated, the handle 11 drives the driving rod 31 to rotate through the sliding plate 53, and the driving rod 31 drives the extension rod 33 located inside the fixed box 7 to rotate. When the handle 11 turns left, the driving rod 31 moves right, and the extension rod 33 fits the electromagnet 71. At this time, the electromagnet 71 and the hydraulic cylinder 73 are energized. When the hydraulic rod 75 is extended, the hydraulic rod 75 drives the steering plate 63 to rotate around the steering rod 62. At this time, the wheel 12 turns left. Since the wheel 12 is located behind the stacker body 1, the stacker body 1 turns right when the wheel 12 turns left, and the same is true when the handle 11 turns right. It will not be repeated here. The use of hydraulics as a driving method facilitates the operator to turn, and is more labor-saving and convenient to use.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steering wheel steering mechanism with a low mounting surface for a stacker, comprising: A stacker truck body (1), the stacker truck body (1) comprising a handle (11), wheels (12), etc.; It is characterized by: also including: A limiting mechanism (2), the limiting mechanism (2) being located below the handle (11), and the limiting mechanism (2) being capable of limiting the steering of the wheel (12); A steering mechanism (3), wherein the steering mechanism (3) is located between the limiting mechanism (2) and the wheel (12), and the steering mechanism (3) can assist the handle (11) in steering the wheel (12).

2. The low-mounting-surface steering wheel mechanism for a stacker according to claim 1, characterized in that: The limit mechanism (2) comprises a connecting rod (21) fixedly connected to the lower end of the handle (11); one end of the connecting rod (21) away from the handle (11) is fixedly connected to a limit box (22); a sliding groove (23) is provided at the bottom of the handle (11); a disengagement member (4) is provided inside the sliding groove (23) for disengaging the limit box (22) from the stacker body (1) and for disengaging the clamping connection.

3. The low-mounting-surface steering wheel mechanism for a stacker according to claim 2, characterized in that: The disengaging member (4) comprises a sliding rod (41) slidably connected inside the sliding groove (23); one end of the sliding rod (41) away from the inner wall of the sliding groove (23) is located outside the handle (11); one end of the sliding rod (41) away from the sliding groove (23) is fixedly connected to a toggle plate (42); a steel cable (43) is fixedly connected to the bottom of the toggle plate (42); one end of the steel cable (43) away from the toggle plate (42) is located inside the limit box (22); and a limit member (5) capable of limiting the rotation of the handle (11) is arranged inside the limit box (22).

4. The low-mounting-surface steering wheel mechanism for a stacker according to claim 3, characterized in that: The limiting member (5) comprises a limiting hole (51) formed at the upper end of the limiting box (22); the steel cable (43) passes through the limiting hole (51) and is slidably connected to the limiting hole (51); a spring (52) is fixedly connected to the inner wall of the limiting box (22); an end of the spring (52) away from the connecting rod (21) is fixedly connected to a sliding plate (53); the sliding plate (53) is located inside the limiting box (22) and is slidably connected to the limiting box (22); the limiting box (22) ) is rotatably connected to a rotating rod (54) at the bottom, the rotating rod (54) is fixedly connected to the stacker body (1), the sliding plate (53) is located at the periphery of the rotating rod (54) and is rotatably connected to the rotating rod (54), the sliding plate (53) is fixedly connected to a clamping rod (55) at one end of the sliding plate (53) away from the spring (52), the stacker body (1) is provided with a clamping hole (56), the clamping rod (55) is located inside the clamping hole (56) and is slidably connected to the clamping hole (56).

5. The low-mounting-surface steering wheel mechanism for a stacker according to claim 4, characterized in that: The steering mechanism (3) comprises a driving rod (31) fixedly connected to the bottom of the sliding plate (53); a driving groove (32) is arranged above the stacker body (1); the driving rod (31) is located inside the driving groove (32) and is slidably connected to the driving groove (32); an extension rod (33) is fixedly connected to one end of the driving rod (31) away from the sliding plate (53); and a steering member (6) capable of driving the wheel (12) to steer is arranged at one end of the extension rod (33) away from the driving rod (31).

6. The low-mounting-surface steering wheel mechanism for a stacker according to claim 5, characterized in that: The driving groove (32) is arc-shaped, and the driving rod (31) slides along the inner wall of the driving groove (32).

7. The low-mounting-surface steering wheel mechanism for a stacker according to claim 5, characterized in that: The steering member (6) comprises two groups of steering assemblies (61) arranged at the bottom of the stacker body (1), each of the steering assemblies (61) comprises two steering rods (62) fixedly connected to the bottom of the stacker body (1), each of the steering rods (62) is rotatably connected to a steering plate (63) at its periphery, each of the steering plates (63) is rotatably connected to one end of the extension rod (33) through a fixing plate (64), a steering hole (65) is provided at the center of the fixing plate (64), and the extension rod (33) is located inside the steering hole (65) and is slidably connected to the steering hole (65).

8. The low-mounting-surface steering wheel mechanism for a stacker according to claim 7, characterized in that: The steering member (6) comprises a fixed box (7) fixedly connected to the bottom of the stacker body (1); the extension rod (33) is located inside the fixed box (7) and is slidably connected to the fixed box (7); an electromagnet 1 (71) is fixedly connected to the inner wall of the fixed box (7); an electromagnet 2 (72) is arranged at one end of the extension rod (33) away from the electromagnet 1 (71); the electromagnet 2 (72) is fixedly connected to the inner wall of the fixed box (7); a hydraulic cylinder 1 (73) and a hydraulic cylinder 2 (74) are arranged at the bottom of the stacker body (1); the hydraulic cylinder 1 (73) A hydraulic rod one (75) is slidably connected to one end of the electromagnet one (71), and a hydraulic rod two (76) is slidably connected to one end of the hydraulic cylinder two (74) near the electromagnet two (72). The electromagnet one (71) is connected to the hydraulic cylinder one (73) circuit, and the electromagnet two (72) is connected to the hydraulic cylinder two (74) circuit. The hydraulic rod one (75) is rotatably connected to the steering plate (63) near one end of the electromagnet one (71), and the hydraulic rod two (76) is rotatably connected to the steering plate (63) near one end of the electromagnet two (72).

9. The steering wheel steering mechanism with a low mounting surface for a stacker according to claim 3, characterized in that: The toggle plate (42) is arc-shaped, and the toggle plate (42) can fit with the outer wall of the handle (11).

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