Accessory of forklift and forklift with accessory

Abstract

The attachment comprises a first support, a telescopic assembly and a second support, the telescopic assembly is connected between the first support and the second support so as to drive the first support to stretch out or retract relative to the second support in the first direction, the second support is provided with a sliding groove extending in the second direction, and the sliding groove penetrates through the second support; the end, in the second direction, of the side, connected with the second support, of the telescopic assembly is a sliding end, and the sliding end penetrates through the sliding groove and is connected with a telescopic roller. The second support is further provided with a plurality of lifting rollers, rotating shafts of the lifting rollers and rotating shafts of the telescopic rollers are arranged in parallel at intervals, and the centers of the lifting rollers and the centers of the telescopic rollers are located on the same straight line extending in the second direction. According to the utility model, the thickness of the accessory can be reduced, the load loss distance is reduced, and the visual field on the portal frame is widened.

Description

Technical Field

[0001] The utility model relates to the field of forklifts, in particular to an attachment of a forklift and a forklift with the attachment. Background Art

[0002] In addition to using forks as the most basic working attachments, forklifts can also be equipped with a variety of interchangeable attachments according to user needs. Attachments are efficient equipment for automated loading, unloading, stacking and handling. They are good tools for forklifts to use multiple purposes. They can improve and supplement the performance of forklifts and adapt to the complex and diversified needs of modern logistics, warehousing, handling and loading and unloading.

[0003] Currently, telescopic attachments are connected between the fork and the mast, and are equipped with lifting rollers that slide in conjunction with the mast's tracks. This type of attachment uses a scissor-type structure to drive the fork to extend and retract relative to the mast. The scissor-type structure is equipped with telescopic rollers, and the attachment body is equipped with a roller track for the rollers to roll. The roller track of the attachment does not overlap with the mast's track. Figure 8 and Figure 9 With this structure, the thickness of the attachment body increases, resulting in an increase in the vehicle's unloaded distance L, a decrease in the carrying capacity, and an impact on the operator's field of vision. Utility Model Content

[0004] The main purpose of the present utility model is to overcome the above-mentioned defects in the prior art and to propose a forklift attachment and a forklift with the attachment, in which the telescopic rollers and the lifting rollers of the attachment are arranged to slide along the door frame track, thereby shortening the thickness of the attachment, reducing the unload distance, and widening the field of view on the door frame.

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

[0006] A forklift attachment comprises a first bracket, a telescopic assembly and a second bracket, the telescopic assembly being connected between the first bracket and the second bracket to drive the first bracket to extend or retract relative to the second bracket in a first direction, the second bracket being provided with a slide groove extending in a second direction, the slide groove passing through the second bracket; an end of the telescopic assembly connected to the second bracket in the second direction is provided as a sliding end, the sliding end being passed through the slide groove and connected to a telescopic roller; a plurality of lifting rollers are further provided on the second bracket, the rotating shafts of the plurality of lifting rollers and the telescopic rollers being arranged in parallel and spaced apart, and the centers of the plurality of lifting rollers and the centers of the telescopic rollers are located on the same straight line extending in the second direction.

[0007] The second bracket includes two vertical plates, which are arranged in parallel and spaced apart and are provided with the slide groove, and the slide groove passes through the vertical plates in the thickness direction; the telescopic assembly is provided with two scissor arms, one side of the two scissor arms is rotatably connected to the first bracket, and the other side of the two scissor arms is rotatably connected to the inner sides of the two vertical plates respectively, and the sliding end and the telescopic roller are provided at one end of the side of the scissor arm connected to the vertical plate in the second direction.

[0008] The scissor arm includes a first arm and a second arm, the first arm and the second arm are cross-arranged and rotatably connected in the middle, one end of the first arm and the second arm is rotatably connected to the first bracket, the other end of the first arm is rotatably connected to the second bracket, and the other end of the second arm is rotatably connected to the second bracket and serves as the sliding end.

[0009] A plurality of lifting rollers are rotatably connected to the outer side of the vertical plate, and the telescopic roller is also located on the outer side of the vertical plate.

[0010] The two lifting rollers are respectively located at two ends of the outer side of the vertical plate in the second direction, and the sliding groove is located at one end of the outer side of the vertical plate close to the second direction.

[0011] The second bracket further includes two cross beams, which are connected between the inner sides of the two vertical plates and are arranged in parallel and spaced apart; the other side of the scissor arm is rotatably connected to one of the cross beams.

[0012] It also includes a telescopic drive component, one end of which is connected to the second bracket and the other end is connected to drive the scissor arm to move so that the sliding end slides along the slide groove.

[0013] A forklift with accessories includes a vehicle body, the vehicle body is provided with a fork and a mast, and two opposite inner sides of the mast are provided with tracks extending along a second direction; it also includes a forklift accessory, the first bracket is connected to the fork, and the telescopic roller and the lifting roller on the outer side of the second bracket are slidably matched with the track on the corresponding inner side of the mast.

[0014] The vehicle body is further provided with a lifting drive assembly, which is mounted on the door frame and connected to the second bracket to drive the lifting thereof.

[0015] The lifting drive assembly includes a driving cylinder, a sprocket and a chain. The driving cylinder is fixed relative to the door frame and is connected to drive the sprocket to lift and lower along the second direction. The chain is wound around the sprocket and connected to the second bracket.

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

[0017] 1. In the present invention, the rotating shafts of the lifting roller and the telescopic roller on the second bracket of the attachment are arranged in parallel and spaced apart, and the centers of the lifting roller and the telescopic roller are located on the same straight line extending along the second direction, so that the lifting roller and the telescopic roller can share a track, reducing the overall thickness of the attachment, reducing the unloaded distance, and widening the field of view on the door frame.

[0018] 2. In the utility model, the second bracket includes two vertical plates, the vertical plates are provided with a slide groove running through in the thickness direction, the telescopic assembly is provided with two scissor arms, the two scissor arms are rotatably connected to the first bracket and the inner side of the vertical plate, and the scissor arms are connected to the vertical plate at one end in the second direction. A sliding end and a telescopic roller are provided, so that the volume of the attachment is smaller after contraction, the unload distance can be reduced by 30-40mm, the structure is more compact and the load-bearing capacity is improved.

[0019] 3. In the present invention, the lifting roller and the telescopic roller are located on the outside of the vertical plate. The specific distribution can be set according to actual conditions. The lifting rollers are respectively located at the two ends of the second direction of the outside of the vertical plate, and the slide groove and the telescopic roller are located between the two lifting rollers. The layout is reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the attachment of the present utility model (extended);

[0021] Figure 2 This is a structural diagram of the attachment of the present utility model (retracted);

[0022] Figure 3 This is a diagram showing the coordination of the attachment, mast and fork of the present utility model;

[0023] Figure 4 This is a diagram showing the connection between the attachment, mast and fork of the present utility model;

[0024] Figure 5 This is a diagram of the attachment of the present invention in its extended state;

[0025] Figure 6 This is a diagram of the attachment state of the present utility model (retracted);

[0026] Figure 7 for Figure 6 A top view of

[0027] Figure 8 This is a structural diagram of existing accessories (extended);

[0028] Figure 9 This is a structural diagram of existing attachments (retracted);

[0029] in:

[0030] 10. First bracket; 20. Telescopic assembly; 21. Scissor arm; 22. First arm; 23. Second arm; 24. Rotating shaft; 30. Second bracket; 31. Lifting roller; 32. Telescopic roller; 33. Sliding end; 34. Vertical plate; 35. Slide; 36. Crossbeam; 40. Telescopic drive assembly; 50. Lifting drive assembly; 51. Drive cylinder; 52. Sprocket; 53. Chain; 60. Gantry; 61. Track; 70. Fork.

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0032] The present invention is further described below through specific implementation methods.

[0033] See also Figures 1 to 7 , a forklift attachment, including a first bracket 10, a telescopic assembly 20 and a second bracket 30. The telescopic assembly 20 is connected between the first bracket 10 and the second bracket 30, and the telescopic assembly 20 is rotatably connected to the first bracket 10 and the second bracket 30. By driving the telescopic assembly 20, the first bracket 10 is extended or retracted relative to the second bracket 30 along the first direction. The second bracket 30 is provided with a slide groove 35 extending along the second direction, and the slide groove 35 passes through the second bracket 30, and the second direction is perpendicular to the first direction. The end of the side of the telescopic assembly 20 connected to the second bracket 30 in the second direction is set as a sliding end 33, and the sliding end 33 is passed through the slide groove 35 and is connected to the telescopic roller 32, that is, during the extension and retraction of the telescopic assembly 20, the sliding end 33 slides along the slide groove 35.

[0034] The second bracket 30 is also equipped with a plurality of lifting rollers 31. The rotating axes of the lifting rollers 31 and the telescopic rollers 32 are arranged parallel and spaced apart, and the centers of the lifting rollers 31 and the telescopic rollers 32 are located on the same straight line extending along the second direction. This arrangement allows the lifting rollers 31 and the telescopic rollers 32 to be installed within the same track extending along the second direction, that is, to share the same track.

[0035] The second bracket 30 includes two vertical plates 34 extending along the second direction. The two vertical plates 34 are arranged in parallel and spaced apart and are provided with a slide groove 35. The slide groove 35 passes through the vertical plates 34 in the thickness direction. The telescopic assembly 20 is provided with two scissor arms 21. One side of the two scissor arms 21 is rotatably connected to the first bracket 10, and the other side of the two scissor arms 21 is rotatably connected to the inner side of the two vertical plates 34. The scissor arms 21 are connected to the vertical plates 34 on one end in the second direction. The sliding end 33 is provided for connecting the telescopic roller 32. That is, the telescopic roller 32 is located on the outside of the vertical plate 34. The plurality of lifting rollers 31 are also rotatably connected to the outside of the vertical plate 34.

[0036] In practice, the telescopic rollers 32 and the lifting rollers 31 can be arranged in various ways on the outside of the uprights 34. The number of lifting rollers 31 on the outside of each upright 34 can be set as needed, for example, one, two, or three, to ensure that the telescopic assembly 20 can be extended and retracted and the second bracket 30 can be raised and lowered. In the figure, three lifting rollers 31 and one telescopic roller 32 are provided. Two of the lifting rollers 31 are located at the two ends of the outer side of the upright 34 in the second direction. The slide 35 is located on the outer side of the upright 34 near the bottom end in the second direction. The other lifting roller 31 is located between the top lifting roller 31 and the telescopic roller 32.

[0037] In this embodiment, the scissor arms 21 include a first arm 22 and a second arm 23. The first and second arms 22, 23 are arranged crosswise and rotatably connected at the center. A rotating shaft 24 is connected at the center between the two scissor arms 21. One end of each of the first and second arms 22, 23 is rotatably connected to the first bracket 10, while the other end of the first arm 22 is rotatably connected to the second bracket 30. The other end of the second arm 23 is rotatably connected to the second bracket 30 and serves as a sliding end 33. By driving the end of the first arm 22 connected to the second bracket 30 to rotate, the sliding end 33 of the second arm 23 slides along the slide groove 35, thereby achieving the extension and retraction of the scissor arms 21.

[0038] The second bracket 30 also includes two crossbeams 36, which are connected between the inner sides of the two vertical plates 34 and spaced parallel to each other. The crossbeams 36 can be located at either end of the vertical plates 34 in the second direction. The other side of the scissor arms 21 is rotatably connected to one of the crossbeams 36. In the figure, the other ends of the two first arms 22 are rotatably connected to the top crossbeam 36. By driving the top crossbeam 36, the two scissor arms 21 can be extended or retracted.

[0039] The first bracket 10 is a frame structure, and its overall structure may be similar to that of the second bracket 30 , and may also be provided with two vertical plates 34 and two horizontal beams 36 , but is not limited thereto and may be adjusted according to actual needs.

[0040] This embodiment also includes a telescopic drive assembly 40, which is used to connect and drive the telescopic assembly 20 to extend and retract. One end of the telescopic drive assembly 40 is connected to the second bracket 30, and the other end is connected to the scissor arms 21, driving the sliding end 33 along the slide 35. Specifically, the telescopic drive assembly 40 utilizes two hydraulic cylinders, one end of which is connected to the rotating shaft 24 between the two scissor arms 21, and the other end is connected to the crossbeam 36 at the top of the second bracket 30.

[0041] Based on this, this embodiment further provides a forklift with an attachment, comprising a vehicle body and the aforementioned forklift attachment. The vehicle body is provided with a forklift 70 and a mast 60. The mast 60 includes an inner mast 60 and an outer mast 60. Rails 61 extending along a second direction are provided on two opposing inner sides of the inner mast 60. A first bracket 10 of the attachment is connected to the forklift 70. The telescopic rollers 32 and the lifting rollers 31 on the outer sides of the second bracket 30 slidably engage with the corresponding inner rails 61 on the inner side of the mast 60.

[0042] With this arrangement, since the telescopic roller 32 and the lifting roller 31 share the same track 61 of the door frame 60, there is no need to set a track for the telescopic roller 32 to roll on the second bracket 30, and the thickness of the two vertical plates 34 of the second bracket 30 can also be reduced, thereby reducing the space occupied on the door frame 60, thereby expanding the field of view.

[0043] In this embodiment, the vehicle body is further provided with a lift drive assembly 50, which is used to drive the attachment and fork 70 to rise and fall. Specifically, the lift drive assembly 50 is mounted on the mast 60 and connected to the second bracket 30 to drive its rise and fall. The rise and fall of the second bracket 30 drives the rise and fall of the fork 70 connected to the first bracket 10.

[0044] Specifically, the lifting drive assembly 50 includes a driving cylinder 51, a sprocket 52 and a chain 53. The driving cylinder 51 is fixed relative to the door frame 60 and is connected to the driving sprocket 52 to lift and lower along the second direction. The chain 53 is wound around the sprocket 52. One end of the sprocket 52 is fixed, and the other end is connected to the second bracket 30.

[0045] The attachments and forklift in this embodiment are shown in Figure 2 、 Figure 6 and Figure 7 In the normal state, the telescopic drive assembly 40 controls the first bracket 10 to retract relative to the second bracket 30. The first bracket 10 is close to the second bracket 30. The sliding end 33 of the telescopic assembly 20 is located at the bottom end of the slide 35. The attachment is located near the bottom of the door frame 60. In this state, the overall thickness of the attachment is relatively small. Figure 6 In this embodiment, the unloaded distance L is less than Figure 9 In actual application, the unload distance L can be reduced by 30-40mm.

[0046] When in operation, the telescopic drive assembly 40 controls the first bracket 10 to extend relative to the second bracket 30, moving the first bracket 10 away from the second bracket 30, and the sliding end 33 of the telescopic assembly 20 is located at the top of the slide 35. The lifting drive assembly 50 can also drive the attachment to rise or fall, thereby driving the fork 70 to rise and fall.

[0047] In the present invention, the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence, 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. They are only used to facilitate the description of the present invention, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. 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.

[0048] In this application, unless otherwise specified, "plurality" refers to two or more. "And / or" describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0049] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A forklift attachment, comprising a first bracket, a telescopic assembly, and a second bracket, wherein the telescopic assembly is connected between the first bracket and the second bracket to drive the first bracket to extend or retract relative to the second bracket in a first direction, characterized in that: The second bracket is provided with a slide groove extending along the second direction, and the slide groove passes through the second bracket; one end of the telescopic component connected to the second bracket in the second direction is set as a sliding end, and the sliding end is passed through the slide groove and connected to the telescopic roller; the second bracket is also provided with a plurality of lifting rollers, and the rotating axes of the plurality of lifting rollers and the telescopic rollers are arranged in parallel and at intervals, and the centers of the plurality of lifting rollers and the centers of the telescopic rollers are located on the same straight line extending along the second direction.

2. A forklift attachment according to claim 1, characterized in that: The second bracket includes two vertical plates, which are arranged in parallel and spaced apart and are provided with the slide groove, and the slide groove passes through the vertical plates in the thickness direction; the telescopic assembly is provided with two scissor arms, one side of the two scissor arms is rotatably connected to the first bracket, and the other side of the two scissor arms is rotatably connected to the inner sides of the two vertical plates respectively, and the sliding end and the telescopic roller are provided at one end of the side of the scissor arm connected to the vertical plate in the second direction.

3. A forklift attachment according to claim 2, characterized in that: The scissor arm includes a first arm and a second arm, the first arm and the second arm are cross-arranged and rotatably connected in the middle, one end of the first arm and the second arm is rotatably connected to the first bracket, the other end of the first arm is rotatably connected to the second bracket, and the other end of the second arm is rotatably connected to the second bracket and serves as the sliding end.

4. A forklift attachment according to claim 2, characterized in that: A plurality of lifting rollers are rotatably connected to the outer side of the vertical plate, and the telescopic roller is also located on the outer side of the vertical plate.

5. The forklift attachment according to claim 2, characterized in that: The two lifting rollers are respectively located at two ends of the outer side of the vertical plate in the second direction, and the sliding groove is located at one end of the outer side of the vertical plate close to the second direction.

6. The forklift attachment according to claim 2, characterized in that: The second bracket further includes two cross beams, which are connected between the inner sides of the two vertical plates and are arranged in parallel and spaced apart; the other side of the scissor arm is rotatably connected to one of the cross beams.

7. The forklift attachment according to claim 2, characterized in that: It also includes a telescopic drive component, one end of which is connected to the second bracket and the other end is connected to drive the scissor arm to move so that the sliding end slides along the slide groove.

8. A forklift with attachments, comprising a vehicle body, the vehicle body being provided with forks and a mast, the mast being provided with rails extending in a second direction on two opposite inner sides thereof; characterized in that: It also includes an attachment of a forklift according to any one of claims 1 to 7, wherein the first bracket is connected to the fork, and the telescopic roller and the lifting roller on the outside of the second bracket are slidably matched with the corresponding inner track of the door frame.

9. A forklift with an attachment as claimed in claim 8, characterized in that: The vehicle body is further provided with a lifting drive assembly, which is mounted on the door frame and connected to the second bracket to drive the lifting thereof.

10. A forklift with an attachment according to claim 9, characterized in that: The lifting drive assembly includes a driving cylinder, a sprocket and a chain. The driving cylinder is fixed relative to the door frame and is connected to drive the sprocket to lift and lower along the second direction. The chain is wound around the sprocket and connected to the second bracket.

Images