Adjustable fork arm carrier device and forklift

Abstract

The adjustable fork arm carrier device comprises a fork and a plate body, the fork is connected to the plate body, the adjustable fork arm carrier device further comprises at least one adjusting mechanism, and each adjusting mechanism comprises a rotating shaft, at least one adjusting assembly and at least one locking assembly; the rotating shaft is arranged on the side edge of the plate body in a penetrating mode, and the axis of the rotating shaft is perpendicular to the pallet fork. The adjusting assembly comprises an adjusting shaft and an eccentric wheel, the adjusting shaft is rotatably arranged on the plate body in a penetrating mode, the axis of the adjusting shaft is parallel to the rotating shaft, and the eccentric wheel is fixedly arranged on the adjusting shaft and is eccentrically arranged relative to the axis of the adjusting shaft; the locking assembly and the adjusting shaft are relatively fixed in the circumferential direction, and the locking assembly and the plate body are detachably and fixedly connected so as to lock or unlock the adjusting shaft.

Description

Technical Field

[0001] The utility model relates to the field of forklifts, in particular to an adjustable fork frame device and a forklift. Background Art

[0002] At present, with the subdivision of AGV products, more and more customers are asking for a reduction in channel width. Therefore, the length of the lightweight stacking AGV product body needs to be designed to be smaller. One way is to weld the outer gantry to the frame to reduce the number of gantry crossbeam parts.

[0003] However, when the mast and the frame are welded, high welding and assembly accuracy is required to ensure the level of the fork, or the fork level can be adjusted by heating the fork and reworking it to avoid affecting the sensor accuracy. This method leads to excessive processing costs and repeated rework. In addition, if the fork is deformed during long-term operation, after-sales engineers cannot easily adjust the angle of the fork frame, which is not conducive to maintenance. Utility Model Content

[0004] The main purpose of the utility model is to overcome the defect that the fork frame in the prior art cannot adjust the angle, and to provide an adjustable fork frame device and a forklift, which are convenient for adjusting the angle of the fork frame and reducing the rework rate of parts.

[0005] The utility model adopts the following technical solutions:

[0006] An adjustable fork frame device comprises a fork and a plate body, wherein the fork is connected to the plate body, and further comprises at least one adjusting mechanism, wherein the adjusting mechanism comprises a rotating shaft, at least one adjusting component and at least one locking component; the rotating shaft is passed through the side of the plate body and its axis is perpendicular to the fork; the adjusting component comprises an adjusting shaft and an eccentric wheel, wherein the adjusting shaft is rotatably passed through the plate body and its axis is parallel to the rotating shaft; the eccentric wheel is fixedly arranged on the adjusting shaft and is eccentrically arranged relative to the axis of the adjusting shaft; the locking component is circumferentially fixed to the adjusting shaft and is detachably fixedly connected to the plate body to lock or unlock the adjusting shaft.

[0007] An operating portion is arranged at one end of the adjusting shaft, and an eccentric portion is arranged at the other end. The eccentric portion is eccentrically arranged relative to the axis of the adjusting shaft; and the eccentric wheel is fixed to the eccentric portion.

[0008] It also includes a fastening assembly, which is detachably sleeved on the adjusting shaft and located between the operating part and the adjusting assembly; and a radially extending stopper is also provided at one end of the eccentric part close to the plate body.

[0009] The locking assembly includes a linkage plate and a locking piece. The linkage plate is detachably fixedly sleeved outside the adjusting shaft and is provided with a locking hole. The locking hole is located at the outer periphery of the adjusting shaft and extends along its circumference. The locking piece is passed through the locking hole and is detachably fixedly connected to the plate body.

[0010] The plate body is provided with side plates, the side plates are perpendicular to the forks, and the rotating shaft and the adjusting assembly are respectively passed through the side plates and are arranged at intervals.

[0011] The plate body is provided with two opposite side plates, each of which is provided with an adjusting mechanism, each of which includes a rotating shaft, two adjusting components and two locking components, the two adjusting components are located at one end of the side plate that is perpendicular to the axis of the rotating shaft, the other adjusting component is located at the other end of the plate body that is perpendicular to the axis of the rotating shaft, and the two locking components are respectively connected to the two adjusting components.

[0012] The distance between the adjustment shaft of one of the adjustment components on the side plate and the rotation shaft is smaller than the distance between the adjustment shaft of another adjustment component and the rotation shaft.

[0013] A roller is fixedly sleeved on the end of the rotating shaft opposite to the eccentric wheel, and the diameter of the roller is larger than the diameter of the eccentric wheel.

[0014] A forklift with an adjustable fork frame device comprises a forklift body, the forklift body is provided with a door frame, the door frame is provided with two opposite assembly grooves, and also comprises the above-mentioned adjustable fork frame device, provided with two adjustment mechanisms respectively corresponding to the two assembly grooves, the rotating shaft is connected to the assembly groove, the eccentric wheel is located in the assembly groove, the eccentric wheel is driven to rotate eccentrically by controlling the rotation of the adjustment shaft, and the eccentric wheel cooperates with the assembly groove to drive the plate body to rotate around the rotating shaft to adjust the fork.

[0015] The diameter of the eccentric wheel is smaller than the width of the assembly groove.

[0016] It can be seen from the above description of the utility model that compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. In the utility model, an adjusting mechanism is added to the fork frame, and the adjusting mechanism includes a rotating shaft, an adjusting assembly and a locking assembly. The rotating shaft is used to realize a rotatable connection between the plate body and the door frame. The adjusting assembly includes an adjusting shaft and an eccentric wheel. The eccentric wheel is rotated eccentrically by rotating the adjusting shaft, thereby driving the plate body to rotate to adjust the horizontality of the fork. The locking assembly is used to lock or unlock the adjusting shaft to ensure that the adjusted fork remains horizontal. The operation is convenient, the rework rate of parts is reduced, and maintenance is convenient.

[0018] 2. In the utility model, the adjusting shaft is provided with an operating part and an eccentric part. The operating part is convenient for operating the adjusting shaft to rotate, and the eccentric part is used to install the eccentric wheel, so that when the adjusting shaft rotates, the eccentric wheel acts on the door frame and drives the plate body to rotate. When the fork is deformed during use, it is convenient for on-site engineers to adjust.

[0019] 3. In the utility model, the locking assembly includes a linkage plate and a locking piece. The linkage plate is linked with the adjusting shaft and is provided with a locking hole and a locking piece. The locking piece is passed through the locking hole and the linkage plate is fixed to the plate body through the locking piece to lock the adjusting shaft, or the linkage plate is loosened to unlock the adjusting shaft. The operation is simple.

[0020] 4. In the utility model, a fastening assembly and a stopper are provided on the adjusting shaft, and the fastening assembly and the stopper are respectively located on different sides of the side plate of the plate body, so as to realize axial limitation of the adjusting shaft and avoid axial movement thereof, and the structure is more reliable.

[0021] 5. In the utility model, two opposite side panels are arranged on the plate body, each side panel is provided with an adjustment mechanism, each adjustment mechanism comprises a rotating shaft, two adjustment components and two locking components, and the horizontality of the fork can be adjusted more accurately by adjusting the adjustment mechanism on the two side panels, and at the same time, the detection accuracy of the sensor on the fork frame can be improved.

[0022] 6. The utility model is suitable for lightweight stacker AGVs, suitable for narrow channel scenarios, and products that require thin body dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural diagram of the fork frame of the utility model;

[0024] Figure 2 This is a side view of the fork frame of the utility model;

[0025] Figure 3 A connection diagram for the adjustment assembly and the locking assembly;

[0026] Figure 4 It is a stereogram of the adjustment axis;

[0027] Figure 5 To adjust the axle side view;

[0028] Figure 6 for Figure 4 A cross-sectional view of

[0029] Figure 7 This is the structural diagram of the linkage board;

[0030] Figure 8 A three-dimensional diagram of the eccentric wheel and the roller located in the assembly groove;

[0031] Fig. 9 The front view of the eccentric wheel and the roller in the assembly groove;

[0032] Fig.10 This is a schematic diagram of fork frame adjustment;

[0033] Fig.11 for Fig.10 A schematic diagram of adjusting one of the eccentric wheels;

[0034] Fig.12 for Fig.10 Another eccentric adjustment diagram in FIG.

[0035] Fig.13 This is the structural diagram of the fork frame installed on the mast;

[0036] in:

[0037] 10. Fork; 20. Plate; 21. Side plate; 30. Adjustment mechanism; 31. Rotating shaft; 32. Roller; 40. Adjustment assembly; 41. Adjustment shaft; 42. Eccentric wheel; 42a. First eccentric wheel; 42b. Second eccentric wheel; 43. Operating part; 44. Eccentric part; 45. Fixed section; 46. Threaded section; 47. Stopper; 50. Locking assembly; 51. Linkage plate; 52. Locking piece; 53. Locking hole; 60. Fastening assembly; 61. Nut; 62. Gasket; 70. Door frame; 71. Assembly groove.

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0039] The present invention is further described below through specific implementation methods.

[0040] In the present utility model, the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model, and are not intended to indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0041] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0042] See also Figures 1 to 7 An adjustable fork frame device includes a fork 10, a plate body 20 and at least one adjustment mechanism 30. The fork 10 is connected to the plate body 20 and can be vertically connected to the bottom of the plate body 20. The adjustment mechanism 30 is arranged on the side of the plate body 20, and is used to adjust the angle between the plate body 20 and the door frame 70, thereby adjusting the level of the fork 10.

[0043] The adjustment mechanism 30 includes a shaft 31, at least one adjustment component 40, and at least one locking component 50. The shaft 31 is disposed on the side of the plate body 20 and its axis is perpendicular to the fork 10. The shaft 31 can be located in the middle of the side of the plate body 20 or near the middle. The shaft 31 is also used to connect with the door frame 70. The plate body 20 is rotatably connected with the door frame 70 through the shaft 31, that is, the plate body 20 rotates around the shaft 31 relative to the door frame 70, and the level of the fork 10 is adjusted by rotating the plate body 20. The number of the adjustment mechanism 30 can be one or two. If there is one, it is located on one side of the plate body 20; if there are two, they are located on both sides of the plate body 20 respectively.

[0044] The adjustment assembly 40 includes an adjustment shaft 41 and an eccentric wheel 42. The adjustment shaft 41 is rotatably disposed on the plate body 20 and its axis is parallel to the rotating shaft 31. The eccentric wheel 42 is fixedly disposed on the adjustment shaft 41 and is eccentrically disposed relative to the axis of the adjustment shaft 41, that is, the center of the eccentric wheel 42 does not coincide with the axis of the adjustment shaft 41, and there is a gap between the two. When the adjustment shaft 41 rotates, the eccentric wheel 42 also rotates, and the eccentric wheel 42 rotates eccentrically around the axis of the adjustment shaft 41, so that the eccentric wheel 42 can act with the door frame 70 to drive the plate body 20 to rotate around the rotating shaft 31.

[0045] Furthermore, an operating portion 43 is provided at one end of the adjusting shaft 41, and the operating portion 43 is used to operate the adjusting shaft 41 to rotate. The operating portion 43 can be provided in a rectangular parallelepiped to facilitate the rotation of the tool. An eccentric portion 44 is provided at the other end of the adjusting shaft 41, and the eccentric portion 44 is eccentrically arranged relative to the axis of the adjusting shaft 41, and the eccentric wheel 42 is fixed to the eccentric portion 44.

[0046] The locking assembly 50 is relatively fixed to the adjusting shaft 41 in the circumferential direction. The locking assembly 50 is also detachably fixedly connected to the plate body 20 to lock or unlock the adjusting shaft 41. After the locking assembly 50 locks the adjusting shaft 41, the adjusting shaft 41 cannot rotate. After the locking assembly 50 unlocks the adjusting shaft 41, the adjusting shaft 41 can rotate around its axis.

[0047] Specifically, the locking assembly 50 includes a linkage plate 51 and a locking member 52. The linkage plate 51 is detachably fixedly sleeved outside the adjustment shaft 41, that is, the linkage plate 51 and the adjustment shaft 41 are circumferentially fixed. The adjustment shaft 41 may be provided with a fixing section 45 between the operating portion 43 and the eccentric portion 44, and is fixed to the linkage plate 51 through the fixing section 45. The fixing section 45 may be provided in an outer hexagonal shape, and a corresponding inner hexagonal hole is provided on the linkage plate 51. The linkage plate 51 is also provided with a locking hole 53, which is located on the outer periphery of the adjustment shaft 41 and extends along the circumference thereof. The locking member 52 is penetrated through the locking hole 53 and is detachably fixedly connected to the plate body 20. When the locking member 52 is rotated to press the linkage plate 51, the linkage plate 51 is fixed and the adjustment shaft 41 is locked. When the locking member 52 is rotated to release the linkage plate 51, the adjustment shaft 41 is unlocked.

[0048] Furthermore, in order to prevent the adjustment shaft 41 from moving in the axial direction relative to the plate body 20, and to prevent the linkage plate 51 from moving in the axial direction of the adjustment shaft 41, the utility model is further provided with a fastening assembly 60, and the adjustment shaft 41 is further provided with a threaded section 46 near the operating portion 43, and the fastening assembly 60 is detachably sleeved on the threaded section 46, and the fastening assembly 60 is located between the operating portion 43 and the linkage plate 51. Specifically, the fastening assembly 60 includes a nut 61 and a gasket 62, the nut 61 is sleeved on the threaded section 46, and the gasket 62 is sleeved on the threaded section 46 and is located on the side of the nut 61 relative to the linkage plate 51. In addition, a radially extending stopper 47 is further provided at one end of the eccentric portion 44 relative to the plate body 20, and the stopper 47 is also eccentric relative to the adjustment shaft 41. The axial fixation of the adjustment shaft 41 is further achieved through the cooperation of the stopper 47 and the fastening assembly 60.

[0049] In the utility model, the plate body 20 is provided with a side plate 21, the side plate 21 is perpendicular to the fork 10, and the rotating shaft 31 and the adjusting assembly 40 are respectively penetrated on the side plate 21 and arranged at intervals. Specifically, the plate body 20 is provided with two opposite side plates 21, each side plate 21 is provided with an adjusting mechanism 30, each adjusting mechanism 30 includes a rotating shaft 31, two adjusting assemblies 40 and two locking assemblies 50, the two adjusting assemblies 40 are located at one end of the side plate 21 perpendicular to the axis of the rotating shaft 31, the other adjusting assembly 40 is located at the other end of the plate body 20 perpendicular to the axis of the rotating shaft 31, and the two locking assemblies 50 are respectively connected to the two adjusting assemblies 40. When the two adjusting assemblies 40 on the same side of the rotating shaft 31 of the two side plates 21 are adjusted, the plate body 20 rotates forward around the rotating shaft 31, and when the other two adjusting assemblies 40 on the same side of the rotating shaft 31 of the two side plates 21 are adjusted, the plate body 20 rotates reversely around the rotating shaft 31.

[0050] The distance between the adjusting shaft 41 of one adjusting assembly 40 and the rotating shaft 31 on the side plate 21 is smaller than the distance between the adjusting shaft 41 of another adjusting assembly 40 and the rotating shaft 31. The specific distance can be adjusted according to actual conditions.

[0051] In the utility model, a roller 32 is fixedly sleeved on the end of the rotating shaft 31 opposite to the eccentric wheel 42 , and the diameter of the roller 32 is greater than the diameter of the eccentric wheel 42 .

[0052] Based on this, the utility model also proposes a forklift with an adjustable fork frame device, including a forklift body, the forklift body is provided with a door frame 70 and the above-mentioned adjustable fork frame device, the door frame 70 is provided with two opposite assembly grooves 71, and the fork frame device is provided with two adjustment mechanisms 30 respectively corresponding to the two assembly grooves 71. In each adjustment mechanism 30, the rotating shaft 31 is connected to the assembly groove 71, and the eccentric wheel 42 is located in the assembly groove 71. The eccentric wheel 42 is driven to rotate eccentrically by controlling the rotation of the adjustment shaft 41, and the eccentric wheel 42 cooperates with the assembly groove 71 to drive the plate body 20 to rotate around the rotating shaft 31 to adjust the fork 10 so that the fork 10 is horizontal.

[0053] The eccentric wheels 42 of the two adjustment components 40 of each adjustment mechanism 30 are divided into a first eccentric wheel 42a and a second eccentric wheel 42b. The first eccentric wheel 42a and the second eccentric wheel 42b can be of the same size and are distributed up and down. The diameters of the first eccentric wheel 42a and the second eccentric wheel 42b are smaller than the width of the assembly groove 71, so that the eccentric wheel 42 has space to rotate. The diameter of the roller 32 connected to the rotating shaft 31 can match the width of the assembly groove 71.

[0054] In this utility model, see Fig.10 , the dotted fork 10 is not in a horizontal position and needs to be adjusted. First, loosen the locking member 52 of the locking assembly 50 to unlock the adjustment shaft 41, and then use a tool to act on the operating end of the adjustment shaft 41 located at the top of the figure. Fig.11 , the upper adjustment shaft 41 rotates counterclockwise, and the first eccentric wheel 42a also rotates counterclockwise; or the operating end of the adjustment shaft 41 located at the bottom is operated, see Fig.12 , the adjusting shaft 41 below rotates clockwise, the second eccentric wheel 42b also rotates clockwise, and the eccentric wheel 42 acts on the side wall of the assembly groove 71, driving the plate body 20 to rotate around the rotating shaft 31, and the fork 10 deflects upward to the horizontal; finally, tighten the locking piece 52 of the locking assembly 50 to lock the adjusting shaft 41.

[0055] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. An adjustable fork frame device, comprising a fork and a plate body, wherein the fork is connected to the plate body, and characterized in that: It also includes at least one adjusting mechanism, which includes a rotating shaft, at least one adjusting component and at least one locking component; the rotating shaft passes through the side of the plate body and its axis is perpendicular to the fork; the adjusting component includes an adjusting shaft and an eccentric wheel, the adjusting shaft is rotatably passed through the plate body and its axis is parallel to the rotating shaft, the eccentric wheel is fixed on the adjusting shaft and is eccentrically arranged relative to the axis of the adjusting shaft; the locking component is circumferentially fixed to the adjusting shaft and is detachably fixedly connected to the plate body to lock or unlock the adjusting shaft.

2. An adjustable fork carriage device according to claim 1, characterized in that: An operating portion is arranged at one end of the adjusting shaft, and an eccentric portion is arranged at the other end. The eccentric portion is eccentrically arranged relative to the axis of the adjusting shaft; and the eccentric wheel is fixed to the eccentric portion.

3. An adjustable fork carriage device as claimed in claim 2, characterized in that: It also includes a fastening assembly, which is detachably sleeved on the adjusting shaft and located between the operating part and the adjusting assembly; and a radially extending stopper is also provided at one end of the eccentric part close to the plate body.

4. An adjustable fork carriage device according to claim 1, characterized in that: The locking assembly includes a linkage plate and a locking piece. The linkage plate is detachably fixedly sleeved outside the adjusting shaft and is provided with a locking hole. The locking hole is located at the outer periphery of the adjusting shaft and extends along its circumference. The locking piece is passed through the locking hole and is detachably fixedly connected to the plate body.

5. The adjustable fork carriage device according to claim 1, characterized in that: The plate body is provided with side plates, the side plates are perpendicular to the forks, and the rotating shaft and the adjusting assembly are respectively passed through the side plates and are arranged at intervals.

6. An adjustable fork carriage device according to claim 5, characterized in that: The plate body is provided with two opposite side plates, each of which is provided with an adjusting mechanism, each of which includes a rotating shaft, two adjusting components and two locking components, the two adjusting components are located at one end of the side plate that is perpendicular to the axis of the rotating shaft, the other adjusting component is located at the other end of the plate body that is perpendicular to the axis of the rotating shaft, and the two locking components are respectively connected to the two adjusting components.

7. An adjustable fork carriage device according to claim 6, characterized in that: The distance between the adjustment shaft of one of the adjustment components on the side plate and the rotation shaft is smaller than the distance between the adjustment shaft of another adjustment component and the rotation shaft.

8. An adjustable fork carriage device according to claim 1, characterized in that: A roller is fixedly sleeved on the end of the rotating shaft opposite to the eccentric wheel, and the diameter of the roller is larger than the diameter of the eccentric wheel.

9. A forklift with an adjustable fork frame device, comprising a forklift body, the forklift body being provided with a door frame, the door frame being provided with two opposite assembly grooves, characterized in that: It also includes an adjustable fork frame device according to any one of claims 1 to 8, provided with two adjustment mechanisms corresponding to the two assembly grooves respectively, the rotating shaft is connected to the assembly groove, the eccentric wheel is located in the assembly groove, and the eccentric wheel is driven to rotate eccentrically by controlling the rotation of the adjustment shaft, and the eccentric wheel cooperates with the assembly groove to drive the plate body to rotate around the rotating shaft to adjust the fork.

10. A forklift with an adjustable fork carriage device according to claim 9, characterized in that: The diameter of the eccentric wheel is smaller than the width of the assembly groove.

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