Forklift and pallet fork accessory

Abstract

The utility model discloses a forklift and a pallet fork accessory in the technical field of forklift control, and aims to solve the problems that cargoes are very inconvenient to carry, unload and adjust, and the working efficiency and adaptability of a telescopic arm forklift have great negative effects in the prior art. The fork arm carrier comprises a fork arm carrier body, a lateral moving frame and a rotating frame which are sequentially connected, and the lateral moving frame is driven by a rotating telescopic component to rotate leftwards and rightwards relative to the rotating frame so that the fork arm carrier body can rotate leftwards and rightwards; the fork arm carrier is driven to move left and right through the lateral moving telescopic component, and the overall lateral moving and rotating functions of the fork arm carrier and goods are achieved. The lateral moving telescopic component and the rotary telescopic component can work independently and do not influence each other; and therefore, the fork has high working efficiency and adaptability to working types, and the problem that a conventional fork cannot be quickly adjusted in an extremely small working space is solved.

Description

Technical Field

[0001] The utility model relates to a forklift and a cargo fork attachment, belonging to the technical field of forklift control. Background Art

[0002] With the development of the logistics industry, stackers have become important loading and unloading equipment in the logistics system. As an important accessory on the stacker, the classification and application of the fork plays a vital role in its function and performance. The fork attachment of the current forklift can be positioned by the plate, and the operator can use the remote control and the fork plate to shift the plate to unload the goods. Due to its simple structure, the positioning fork is cheaper than other fork models, economical and practical, and suitable for the storage and handling of a single type of goods. The inventor found that the existing floating fork has the function of fork tine floating and lateral shifting, but does not have the overall lateral shifting and rotation functions. If used in places with dense containers, it is inconvenient to adjust the handling and unloading of goods, which has a great impact on the work efficiency and adaptability of the telescopic arm forklift. Utility Model Content

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a forklift and a fork attachment that improve work efficiency and adaptability.

[0004] To achieve the above objectives, the present disclosure is implemented by adopting the following technical solutions:

[0005] In a first aspect, the present disclosure provides a forklift fork attachment, comprising a fork frame, a side shift frame and a rotating frame;

[0006] The fork frame is connected to a side shift telescopic component, the side shift telescopic component extends along both sides of the fork attachment, the side shift telescopic component is connected to the side shift frame, the side shift frame is slidably connected to the fork frame, and the side shift telescopic component is used to drive the fork frame to move to either side of the side shift frame;

[0007] The side shift frame is hinged to one end of the rotating telescopic component, and the other end of the rotating telescopic component is hinged to the rotating frame. The side shift frame and the rotating frame are rotatably connected via a rotating shaft. The rotating telescopic component is distributed laterally along the fork attachment, and the rotating telescopic component drives the side shift frame to rotate to either side of the rotating frame by telescoping; the rotating frame is used to connect to the forklift body.

[0008] In some embodiments of the first aspect, the side-shift telescopic component is a double-rod telescopic cylinder, the side-shift cylinder body of the side-shift telescopic component is fixedly connected to the fork frame, and the two side-shift rod ends of the side-shift telescopic component are respectively fixedly connected to the two ends of the side-shift frame.

[0009] In some embodiments of the first aspect, the rotating frame is provided with two hinge plates for inserting the rotating shaft on a side close to the side shift frame, and the hinge plates are arranged to engage with the side shift frame in an upper and lower manner.

[0010] In some embodiments of the first aspect, the side shift frame forms an outer convex arc surface near the edge of the rotating frame, the middle of the outer convex arc surface protrudes toward the hinge plate, and the two sides of the outer convex arc surface gradually move away from the hinge plate to facilitate the rotation between the rotating frame and the side shift frame.

[0011] In some embodiments of the first aspect, a half-open hinge point of the boom for being hook-connected to the boom is opened on the side of the rotating frame away from the side shifting frame, and the half-open hinge point of the boom includes a hinge groove for preventing the boom from falling out and an inclined surface for guiding the boom to slide into the hinge groove; the opening of the hinge groove faces downward, and the inclined surface is adjacent to the opening of the hinge groove.

[0012] In some embodiments of the first aspect, the rotating telescopic components include at least two, the two rotating telescopic components are arranged in an eight-shaped shape and are respectively located on both sides of the fork attachment, the cylinder bodies of the two rotating telescopic components are hinged to the side shift frame through a rotating hinge, and the rod ends of the two rotating telescopic components are hinged to the rotating frame.

[0013] In some embodiments of the first aspect, the fork frame includes a first longitudinal plate close to both side edges and a second longitudinal plate closer to the center relative to the first longitudinal plate, and both ends of the side shift guide rod are respectively connected to the first longitudinal plate and the second longitudinal plate;

[0014] The two sides of the side shift frame are fixedly connected to the side shift guide sleeves, and the side shift guide sleeves are inserted into the side shift guide rods.

[0015] In some embodiments of the first aspect, the rotating shaft is inserted into a shaft sleeve, and the shaft sleeve is inserted into preset holes of the side shift frame and the rotating frame to realize the rotational connection between the rotating shaft and the side shift frame, and an shaft baffle is provided at the opening of the preset hole of the side shift frame to prevent the rotating shaft from falling out.

[0016] In some embodiments of the first aspect, an electrical system is further included, and both the lateral telescopic component and the rotational telescopic component are electrically controlled cylinders connected to electrical signals of the electrical system.

[0017] In a second aspect, the present disclosure further provides a forklift, characterized in that it comprises the forklift fork attachment provided by any embodiment of the first aspect.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The forklift and fork attachment provided by the present invention drive the side shift frame to rotate left and right compared with the rotating frame by rotating the telescopic component, so as to realize the left and right rotation of the fork frame; the left and right movement of the fork frame is driven by the side shift telescopic component, so as to realize the overall side shift and rotation function of the fork frame and the cargo; and the side shift telescopic component and the rotating telescopic component can work independently without affecting each other; thus, the forklift and fork attachment have higher working efficiency and adaptability to different working types, and solve the problem that conventional forks cannot be quickly adjusted in a very small working space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 is a schematic front view of the structure of the forklift fork attachment provided in this embodiment;

[0022] Figure 2 is a schematic exploded view of the structure of the forklift fork attachment provided in this embodiment;

[0023] Figure 3 yes Figure 2 Abstract structural diagram of the kinematic relationship between the center fork frame and the side shift frame;

[0024] Figure 4 yes Figure 2 Abstract structural diagram of the motion relationship between the middle and side shifting frames and the rotating frame;

[0025] Figure 5 yes Figure 2 Schematic cross-sectional view of the structure of the half-open hinge point of the middle boom;

[0026] Figure 6 yes Figure 2 Schematic diagram of the control structure of the electrical system, the side-shift telescopic component, and the rotational telescopic component;

[0027] Figure 7 The utility model is a structural schematic diagram of a floating fork attachment in the prior art.

[0028] In the figure: 1-fork frame; 2-rotating frame; 2.1-hinged plate; 3-side shift guide rod; 4-axle baffle; 5-side shift frame; 6-side shift telescopic component; 6.1-side shift cylinder; 6.2-side shift rod end; 7-rotating telescopic component; 7.1-rotating hinge; 8-side shift guide sleeve; 9-first longitudinal plate; 10-second longitudinal plate; 11-axle baffle; 12-rotating shaft; 13-axle sleeve; 14-external convex arc surface; 15-half-open hinge of the boom; 15.1-hinged groove; 15.2-inclined surface; 16-electrical system; 17-fork;

[0029] x1-floating shaft; x2-floating fork frame; x3-long round hole slot; x4-fork tine. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present disclosure / the present application to clearly and completely describe the technical solutions in the embodiments of the present disclosure / the present application. Obviously, the described embodiments are only part of the embodiments of the present disclosure / the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure / the present application and its application or use.

[0031] refer to Figure 7 In the prior art, the fork attachment is mainly a floating attachment, including a floating fork frame x2, with oblong hole slots x3 on both sides of the floating fork frame x2, the oblong hole slots x3 are used to insert the floating shaft x1, and the floating shaft x1 is connected to the fork teeth x4. It is not difficult for technical personnel in this field to see that the existing fork attachment only has a certain floating function and lacks posture adjustment for the goods. Embodiment 1

[0032] This embodiment provides a forklift fork attachment to solve the problems of low efficiency and poor adaptability in the prior art.

[0033] refer to Figures 1 to 5 The forklift attachment provided in this embodiment includes a fork frame 1, the fork frame 1 is connected with a fork 17, and the fork 17 is used to lift the pallet of the goods. The forklift attachment also includes a side shift frame 5 and a rotating frame 2. When in use, the fork frame 1→side shift frame 5→rotating frame 2→forklift body are connected in sequence.

[0034] The fork frame 1 is connected to the side shift telescopic component 6, which extends along both sides of the fork attachment. The side shift telescopic component 6 is connected to the side shift frame 5, and the side shift frame 5 is slidingly connected to the fork frame 1. The side shift telescopic component 6 is used to drive the fork frame 1 to move to either side of the side shift frame 5 to achieve lateral displacement of the fork frame 1 and the fork 17.

[0035] The side shift frame 5 is hinged to one end of the rotating telescopic component 7, and the other end of the rotating telescopic component 7 is hinged to the rotating frame 2. The side shift frame 5 is rotatably connected to the rotating frame 2 through the rotating shaft 12. The rotating telescopic component 7 is distributed laterally along the fork attachment. The rotating telescopic component 7 drives the side shift frame 5 to rotate to either side of the rotating frame 2 through telescopic movement to realize the left and right rotation of the fork frame 1. The side of the rotating frame 2 away from the side shift frame 5 is used to connect the forklift body. When in use, the lifting force is transmitted to the side shift frame 5 through the rotating frame 2, and the side shift frame 5 then transmits the lifting force to the fork frame 1.

[0036] Non-exclusive method of use: Rotating frame 2 is connected to the forklift body, refer to Figure 4 As well as the arrows in the figure indicating the movement and extension direction, the extension and retraction of the rotating telescopic component 7 will generate a rotational torque around the rotating axis 12. Since the rotating frame 2 is fixed relative to the forklift body, the rotating telescopic component 7 drives the side shift frame 5 to rotate left and right around the rotating frame 2 by extension and retraction. At this time, the side shift frame 5 also rotates left and right to complete the rotation of the goods; refer to Figure 3 As well as the arrows in the figure indicating the movement and telescopic direction, through the telescopic movement of the side shift telescopic component 6, since the side shift frame 5 is fixed relative to the forklift body, the fork frame 1 is forced to move left and right, thereby completing the side shift of the goods.

[0037] It is not difficult for those skilled in the art to see that the forklift attachment provided in this embodiment improves the flexibility of forklift operation, thereby improving efficiency and working area, and the rotating telescopic component 7 and the lateral telescopic component 6 work independently and do not interfere with each other. Figure 7 The further design shown is a floating attachment. Embodiment 2

[0038] This embodiment provides a forklift fork attachment, which is improved on the basis of the first embodiment. For details not provided, please refer to the first embodiment.

[0039] In order to improve the synchronization of the fork frame 1 when it moves left and right and prevent it from getting stuck, optionally, in a further but non-limiting embodiment of the present application, refer to Figure 2 and Figure 3 As well as arrows indicating the movement and telescopic directions in the figure, the side shift telescopic component 6 is a double-rod telescopic cylinder, the side shift cylinder body 6.1 of the side shift telescopic component 6 is fixedly connected to the fork frame 1, and the two side shift rod ends 6.2 of the side shift telescopic component 6 are respectively fixedly connected to the two ends of the side shift frame 5, the side shift cylinder body 6.1 drives the piston to move, and then the two side shift rod ends 6.2 synchronously control the fork frame 1 to move left and right from at least two control points of the fork frame 1.

[0040] Embodiment 1 mentions the transmission of lifting force. As one embodiment, refer to Figure 2The rotating frame 2 is provided with two hinged plates 2.1 for inserting the rotating shaft on one side close to the side shift frame 5. The hinged plates 2.1 are arranged to engage with the side shift frame 5 up and down. The upper and lower sides of the side shift frame 5 are fixed in the two hinged plates 2.1 to facilitate the transmission of the lifting force.

[0041] In order to prevent the side shift frame 5 from colliding with the rotating frame 2 when rotating, refer to Figure 2 As one embodiment, the side shift frame 5 forms a convex arc surface 14 at the edge close to the rotating frame 2, the middle of the convex arc surface 14 protrudes toward the hinge plate 2.1, and the two sides of the convex arc surface 14 gradually move away from the hinge plate 2.1 to facilitate the rotation between the rotating frame 2 and the side shift frame 5.

[0042] The fork attachment is often connected to the boom on the forklift body. As one embodiment, refer to Figure 5 A half-open hinge point 15 of the boom for being connected to the boom in a hook-like manner is provided on the side of the rotating frame 2 away from the side shift frame 5. The half-open hinge point 15 of the boom includes a hinge groove 15.1 for preventing the boom from falling out and an inclined surface 15.2 for guiding the boom to slide into the hinge groove 15.1; the opening of the hinge groove 15.1 faces downward, and the inclined surface 15.2 is adjacent to the opening of the hinge groove 15.1; the boom can enter the half-open hinge point 15 of the boom as shown by the arrow in the figure, so that the entire attachment is connected to the forklift body in a hook-like manner, thereby realizing quick replacement of the entire attachment.

[0043] Considering the limited power of a single rotating telescopic component 7, as one embodiment, reference Figure 2 and Figure 4 As well as arrows indicating the direction of movement and telescopic movement in the figure, the rotating telescopic components 7 include at least two, the two rotating telescopic components 7 are arranged in an eight-shaped shape, the two rotating telescopic components 7 are respectively located on both sides of the fork attachment, the cylinder bodies of the two rotating telescopic components 7 are hinged to the side shift frame 5 through a rotating hinge point 7.1, and the rod ends of the two rotating telescopic components 7 are hinged to the rotating frame 2.

[0044] As one embodiment, the fork attachment has left and right sides. According to the arrangement direction, the two rotating and telescopic components 7 are respectively a left rotating cylinder and a right rotating cylinder. When the side shift frame 5 needs to rotate to the left, the left rotating cylinder retracts and the right rotating cylinder extends. The same applies to rotating to the right.

[0045] Embodiment 1 mentions the transmission of lifting force. As one embodiment, refer to Figure 2 The fork frame 1 includes a first longitudinal plate 9 close to the two side edges and a second longitudinal plate 10 closer to the center relative to the first longitudinal plate 9, and both ends of the side shift guide rod 3 are respectively connected to the first longitudinal plate 9 and the second longitudinal plate 10;

[0046] The two sides of the side shift frame 5 are fixedly connected to the side shift guide sleeve 8, and the side shift guide sleeve 8 is inserted into the side shift guide rod 3. Generally, the side shift guide rod 3 is parallel to the side shift telescopic component 6. When the side shift telescopic component 6 is extended and retracted, with the fork frame 1 as a fixed reference, it can be found that the side shift frame 5 slides relative to the side shift guide rod 3 according to the side shift guide sleeve 8. At the same time, the lifting force can also be transmitted between the side shift guide sleeve 8 and the side shift guide rod 3.

[0047] As one embodiment, the rotating shaft 12 is inserted into the shaft sleeve 13, and the shaft sleeve 13 is inserted into the preset holes of the side shift frame 5 and the rotating frame 2 to realize the rotation connection between the rotating shaft 12 and the side shift frame 5, and the opening of the preset hole of the side shift frame 5 is provided with a shaft stopper 11 to prevent the rotating shaft 12 from coming out. With the shaft sleeve 13 as the rotation medium, the rotation friction between the rotating shaft 12 and the rotating frame 2 and the side shift frame 55 is reduced, and the lifting force can also be transmitted between the rotating shaft 12 and the shaft sleeve 13.

[0048] refer to Figure 6 As one embodiment, the forklift fork attachment further includes an electrical system 16 , and the lateral telescopic component 6 and the rotary telescopic component 7 are both electrically controlled cylinders connected to the electrical system 16 by electrical signals.

[0049] It is not difficult for those skilled in the art to see that the forklift fork attachment provided in this embodiment improves the technical effect and refines the technical solution compared with the first embodiment. Embodiment 3

[0050] This embodiment provides a forklift, including the forklift fork attachment provided by any of the above embodiments, which also has the same technical effects and will not be described in detail here.

[0051] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "provided at", "provided with", "located", "installed", "set", etc. 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 directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. "Hinged" includes "rotational connection".

[0053] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A forklift fork attachment, comprising a fork frame (1), characterized in that: It also includes a side shift frame (5) and a rotating frame (2); The fork frame (1) is connected to a side shift telescopic component (6), the side shift telescopic component (6) extends along two sides of the fork attachment, the side shift telescopic component (6) is connected to the side shift frame (5), the side shift frame (5) is slidably connected to the fork frame (1), and the side shift telescopic component (6) is used to drive the fork frame (1) to move to either side of the side shift frame (5); The side shift frame (5) is hinged to one end of a rotating telescopic component (7), the other end of the rotating telescopic component (7) is hinged to the rotating frame (2), the side shift frame (5) and the rotating frame (2) are rotationally connected via a rotating shaft (12), the rotating telescopic component (7) is distributed laterally along the fork attachment, and the rotating telescopic component (7) drives the side shift frame (5) to rotate toward any side of the rotating frame (2) by telescoping; the rotating frame (2) is used to connect to a forklift body.

2. The forklift fork attachment according to claim 1, characterized in that: The side shift telescopic component (6) is a double-rod telescopic oil cylinder; the side shift cylinder body (6.1) of the side shift telescopic component (6) is fixedly connected to the fork frame (1); and the two side shift rod ends (6.2) of the side shift telescopic component (6) are respectively fixedly connected to the two ends of the side shift frame (5).

3. The forklift fork attachment according to claim 1, characterized in that: The rotating frame (2) is provided with two hinged plates (2.1) for inserting the rotating shaft on a side close to the side shift frame (5), and the hinged plates (2.1) are arranged to engage with the side shift frame (5) in an upper and lower manner.

4. The forklift fork attachment according to claim 3, characterized in that: The side shift frame (5) forms an outer convex arc surface (14) at an edge close to the rotating frame (2), the middle of the outer convex arc surface (14) protrudes toward the hinge plate (2.1), and the two sides of the outer convex arc surface (14) gradually move away from the hinge plate (2.1) to facilitate the rotation between the rotating frame (2) and the side shift frame (5).

5. The forklift fork attachment according to claim 1, characterized in that: A half-open hinge point (15) for connecting the boom in a hook-like manner is provided on a side of the rotating frame (2) away from the side shifting frame (5); the half-open hinge point (15) for connecting the boom to the boom in a hook-like manner comprises a hinge groove (15.1) for preventing the boom from falling out and an inclined surface (15.2) for guiding the boom to slide into the hinge groove (15.1); the opening of the hinge groove (15.1) faces downward, and the inclined surface (15.2) is adjacent to the opening of the hinge groove (15.1).

6. The forklift fork attachment according to claim 1, characterized in that: The rotating telescopic components (7) include at least two components. The two rotating telescopic components (7) are arranged in an "eight" shape and are respectively located on both sides of the fork attachment. The cylinder bodies of the two rotating telescopic components (7) are hinged to the side shift frame (5) via a rotating hinge point (7.1), and the rod ends of the two rotating telescopic components (7) are hinged to the rotating frame (2).

7. The forklift fork attachment according to claim 1, characterized in that: The fork frame (1) comprises a first longitudinal plate (9) close to the two side edges and a second longitudinal plate (10) closer to the center relative to the first longitudinal plate (9), and the two ends of the side shift guide rod (3) are respectively connected to the first longitudinal plate (9) and the second longitudinal plate (10); Side shift guide sleeves (8) are fixedly connected to both sides of the side shift frame (5), and the side shift guide sleeves (8) are sleeved into the side shift guide rods (3).

8. The forklift fork attachment according to claim 1, characterized in that: The rotating shaft (12) is inserted into a shaft sleeve (13), and the shaft sleeve (13) is inserted into holes preset in the side shift frame (5) and the rotating frame (2) to achieve rotational connection between the rotating shaft (12) and the side shift frame (5), and a shaft stopper (11) is provided at the opening of the preset hole of the side shift frame (5) to prevent the rotating shaft (12) from falling out.

9. The forklift fork attachment according to claim 1, characterized in that: It also includes an electrical system (16), wherein the lateral telescopic component (6) and the rotary telescopic component (7) are both electrically controlled cylinders connected to the electrical system (16) via electrical signals.

10. A forklift, characterized in that: The forklift fork attachment comprises the fork attachment for a forklift according to any one of claims 1 to 9.

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