Lead screw lateral displacement distance adjusting fork

Abstract

The utility model discloses a distance adjusting fork capable of laterally moving a lead screw, and belongs to the technical field of forklift accessories. The forklift attachment comprises two holding arms and a base, the base comprises a rear plate and a front frame, the rear plate and the front frame are connected in a sliding mode through a first guiding mechanism, and a driving mechanism used for driving the front frame to slide is arranged on the front frame. The rear plate is used for being connected with the forklift and being in linkage with a lifting mechanism of the forklift, the front frame is used for installing the embracing arm, the front frame is in sliding connection with the rear plate through the first guiding mechanism, and the first guiding mechanism can guide the sliding direction of the front frame. The rear plate is connected with the driving mechanism which can drive the front frame to slide so as to shift the accessory, the driving mechanism is of a pure mechanical structure and can be driven by manpower, and therefore a hydraulic system does not need to provide power.

Description

Technical Field

[0001] This utility model relates to the field of forklift attachment technology, and in particular to a screw-driven side-shift adjustable fork. Background Technology

[0002] Forklift attachments are mainly mounted on the forklift mast to handle and load / unload goods. Hydraulic attachments use the forklift's own hydraulic system to provide power to the attachments. When the hydraulic system malfunctions, it can no longer drive the attachments to move. Hydraulic attachments also pose a risk of oil leakage and contamination of goods. Utility Model Content

[0003] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a lead screw side shift adjustable fork.

[0005] To achieve the above objectives, the technical solution of this utility model is: a lead screw side-shifting adjustment fork, including two arm arms and a base, the base including a rear plate and a front frame, the rear plate and the front frame being slidably connected to each other through a guide mechanism, and the front frame being provided with a drive mechanism for driving the front frame to slide.

[0006] By adopting the above technical solution, the rear plate is used to connect with the forklift and link with the lifting mechanism of the forklift. The front frame is used to install the attachment arm. The front frame is slidably connected to the rear plate through a guide mechanism. The guide mechanism can guide the sliding direction of the front frame. The rear plate connection can drive the front frame to slide by a drive mechanism, thereby offsetting the attachment. The drive mechanism is a purely mechanical structure and can be driven manually, thus eliminating the need for a hydraulic system to provide power.

[0007] Preferably, the guiding mechanism includes a guide rail and a slider. The slider is slidably connected to the guide rail, the guide rail is fixedly connected to the front frame, and the slider is fixedly connected to the rear plate. This invention utilizes the guide rail to guide the slider's sliding motion, and fixes the rear plate to the slider and the front frame to the guide rail, thus achieving the connection between the front frame and the rear plate.

[0008] Preferably, the drive mechanism includes a lead screw body, a lead screw nut, and two lead screw supports. The two lead screw supports are fixedly connected to the front frame. Both ends of the lead screw body are rotatably connected to the two lead screw supports respectively. The lead screw nut is fixedly connected to the rear plate and threadedly connected to the lead screw body. A power mechanism for driving the lead screw body to rotate is provided on the lead screw body. This invention allows the lead screw body to rotate via the power mechanism, thereby using the threaded pair between the lead screw nut and the lead screw body to drive the front frame to move, achieving lateral displacement.

[0009] Preferably, the power mechanism includes a handwheel, which is fixedly connected to one end of the lead screw body, and the front frame is provided with a limiting mechanism for rotating the handwheel. This invention drives the lead screw body by rotating the handwheel, saving effort and facilitating operation. The limiting mechanism restricts the handwheel's rotation and fixes the front frame.

[0010] Preferably, the limiting mechanism includes a limiting ring and a self-locking pin. The limiting ring has several limiting holes for the self-locking pin to be inserted into, and the self-locking pin is slidably connected to the handwheel. This invention secures the handwheel by inserting the self-locking pin into the limiting holes.

[0011] Preferably, both of the armrests are slidably connected to the front frame via a second guide mechanism, and the front frame is provided with a locking mechanism to restrict the sliding of the armrests. This invention utilizes the second guide mechanism to achieve a slidable connection between the two armrests and the front frame, and the locking mechanism is used to fix the position of the armrests. In this way, the distance between the two armrests can be adjusted.

[0012] Preferably, the second guiding mechanism includes a second guide rail and a second slider. The second guide rail is fixedly connected to the other side of the front frame opposite to the first guide rail. The second slider is slidably connected to the second guide rail and fixedly connected to the arm. This invention utilizes the second guide rail to guide the second slider to slide, and fixes the arm to the second slider. The front frame is fixed to the second guide rail, thus achieving the connection between the front frame and the arm.

[0013] Preferably, the locking mechanism includes a limiting plate and a spring pin. The limiting plate has several insertion holes for the spring pin to be inserted. The limiting plate is fixedly connected to the front frame, and the spring pin is slidably connected to the arm. This invention achieves the fixation of the arm by inserting the spring pin into the insertion block on the limiting plate.

[0014] Preferably, accordion covers are provided between the two sides of the rear plate and the front frame, as well as between the two sides of the two armrests and the front frame. This invention utilizes accordion covers to protect the guiding mechanism and the driving mechanism.

[0015] Preferably, the rear plate is fixedly connected to two back plates on the opposite side of the front frame, and each of the two back plates is rotatably connected to a roller shaft. This invention utilizes roller shafts to achieve the connection between the rear plate and the forklift.

[0016] In summary, the beneficial effects of this utility model are:

[0017] 1. This attachment is a purely mechanical structure, which can solve the problem of lateral movement and distance adjustment in the absence of hydraulic drive. The distance adjustment of the attachment can adapt to the handling of goods of different sizes. With the fork arm stationary, simply loosen the self-locking pin of the ball screw assembly and turn the handwheel to move the whole thing to the left or right.

[0018] 2. The bellows cover can be used to protect the guiding and driving mechanisms.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0020] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0021] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0025] Figure 1 Schematic diagram of the overall structure Figure 1 ;

[0026] Figure 2 Schematic diagram of the overall structure Figure 2;

[0027] Figure 3 This is a schematic diagram of the rear structure of the front frame;

[0028] Figure 4 This is a schematic diagram of the front structure of the front frame;

[0029] Figure 5 This is a schematic diagram of the drive mechanism structure;

[0030] Figure 6 This is a schematic diagram of the rear panel structure.

[0031] Key reference numerals in the attached drawings: 1. Arm; 2. Rear plate; 3. Front frame; 4. Guide rail one; 5. Slider one; 6. Lead screw body; 7. Lead screw nut; 8. Lead screw support; 9. Handwheel; 10. Limiting ring; 11. Self-locking pin; 12. Limiting hole; 13. Guide rail two; 14. Limiting plate; 15. Spring pin; 16. Bellows cover; 17. Back plate; 18. Roller shaft; 19. Insertion hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0033] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] like Figure 1-6 As shown, a lead screw lateral shift adjustment fork includes two arm arms 1 and a base. The base includes a rear plate 2 and a front frame 3. The rear plate 2 and the front frame 3 are slidably connected to each other through a guide mechanism. The front frame 3 is provided with a drive mechanism for driving the front frame 3 to slide.

[0037] By adopting the above technical solution, the rear plate 2 is used to connect with the forklift and link with the lifting mechanism of the forklift. The front frame 3 is used to install the arm 1. The front frame 3 is slidably connected to the rear plate 2 through the guide mechanism 1. The guide mechanism 1 can guide the sliding direction of the front frame 3. The rear plate 2 is connected to the drive mechanism, which can drive the front frame 3 to slide, thereby offsetting the attachment. The drive mechanism is a purely mechanical structure and can be driven manually, thus eliminating the need for a hydraulic system to provide power.

[0038] The guiding mechanism includes a guide rail 4 and a slider 5. The slider 5 is slidably connected to the guide rail 4. The guide rail 4 is fixedly connected to the front frame 3, and the slider 5 is fixedly connected to the rear plate 2. The guide rail 4 guides the slider 5 to slide, and the rear plate 2 is fixed to the slider 5. The front frame 3 is fixed to the guide rail 4, thus realizing the connection between the front frame 3 and the rear plate 2.

[0039] The drive mechanism includes a lead screw body 6, a lead screw nut 7, and two lead screw supports 8. The two lead screw supports 8 are fixedly connected to the front frame 3. Both ends of the lead screw body 6 are rotatably connected to the two lead screw supports respectively. The lead screw nut 7 is fixedly connected to the rear plate 2 and threadedly connected to the lead screw body 6. A power mechanism for driving the lead screw body 6 to rotate is provided on the lead screw body 6. The power mechanism can rotate the lead screw body 6, and the threaded pair between the lead screw nut 7 and the lead screw body 6 drives the front frame 3 to move, realizing lateral movement.

[0040] The power mechanism includes a handwheel 9, which is fixedly connected to one end of the lead screw body 6. The front frame 3 is provided with a limiting mechanism for rotating the handwheel 9. Rotating the handwheel 9 drives the lead screw body 6. At the same time, the handwheel 9 saves effort and is easy to operate. The limiting mechanism can limit the rotation of the handwheel 9 and fix the front frame 3 by restricting the rotation of the handwheel 9.

[0041] The limiting mechanism includes a limiting ring 10 and a self-locking pin 11. The limiting ring 10 has several limiting holes 12 for the self-locking pin 11 to be inserted into. The self-locking pin 11 is slidably connected to the handwheel 9. The handwheel 9 is fixed by inserting the self-locking pin 11 into the limiting holes 12.

[0042] Both gripping arms 1 are slidably connected to the front frame 3 via a guide mechanism 2. The front frame 3 is equipped with a locking mechanism to restrict the sliding of the gripping arms 1. The guide mechanism 2 is used to achieve the slidable connection between the two gripping arms 1 and the front frame 3, and the locking mechanism is used to fix the position of the gripping arms 1. In this way, the distance between the two gripping arms 1 can be adjusted.

[0043] The second guiding mechanism includes a second guide rail 13 and a second slider. The second guide rail 13 is fixedly connected to the other side of the front frame 3 opposite to the first guide rail 4. The second slider is slidably connected to the second guide rail 13 and fixedly connected to the arm 1. The second guide rail 13 guides the second slider to slide, and the arm 1 is fixed to the second slider. The front frame 3 is fixed to the second guide rail 13, thus realizing the connection between the front frame 3 and the arm 1.

[0044] The locking mechanism includes a limiting plate 14 and a spring pin 15. The limiting plate 14 has several insertion holes 19 for inserting the spring pin 15. The limiting plate 14 is fixedly connected to the front frame 3, and the spring pin 15 is slidably connected to the arm 1. By inserting the spring pin 15 into the insertion block on the limiting plate 14, the arm 1 can be fixed.

[0045] Bellows covers 16 are installed between the rear plate 2 and the front frame 3 on both sides, as well as between the two armrests 1 and the front frame 3 on both sides. The bellows covers 16 can protect the guiding mechanism and the drive mechanism.

[0046] Two back plates 17 are fixedly connected to the rear plate 2 on the other side relative to the front frame 3, and roller shafts 18 are rotatably connected to both back plates 17. The connection between the rear plate 2 and the forklift is achieved by using the roller shafts 18.

[0047] It should be noted that many specific details have been set forth in the above description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

Claims

1. A lead screw side shift traversing yoke comprising two arms (1) and a base, characterized in that: The base includes a rear plate (2) and a front frame (3). The rear plate (2) and the front frame (3) are slidably connected to each other through a guide mechanism. The front frame (3) is provided with a drive mechanism for driving the front frame (3) to slide.

2. The lead screw side shift traversing fork according to claim 1, wherein: The guiding mechanism includes a guide rail (4) and a slider (5). The slider (5) is slidably connected to the guide rail (4). The guide rail (4) is fixedly connected to the front frame (3). The slider (5) is fixedly connected to the rear plate (2).

3. The lead screw side shift traversing fork according to claim 1, wherein: The drive mechanism includes a lead screw body (6), a lead screw nut (7), and two lead screw supports (8). The two lead screw supports (8) are fixedly connected to the front frame (3). The two ends of the lead screw body (6) are rotatably connected to the two lead screw supports respectively. The lead screw nut (7) is fixedly connected to the rear plate (2). The lead screw nut (7) is threadedly connected to the lead screw body (6). The lead screw body (6) is provided with a power mechanism for driving the lead screw body (6) to rotate.

4. The lead screw side shift traversing fork according to claim 3, wherein: The power mechanism includes a handwheel (9), which is fixedly connected to one end of the lead screw body (6), and the front frame (3) is provided with a limiting mechanism for rotating the handwheel (9).

5. The lead screw side shift traversing fork according to claim 4, wherein: The limiting mechanism includes a limiting ring (10) and a self-locking pin (11). The limiting ring (10) has a plurality of limiting holes (12) for the self-locking pin (11) to be inserted. The self-locking pin (11) is slidably connected to the handwheel (9).

6. The lead screw lateral shift adjustment fork according to claim 2, characterized in that: Both of the arm arms (1) are slidably connected to the front frame (3) via the second guide mechanism. The front frame (3) is provided with a locking mechanism to restrict the sliding of the arm arms (1).

7. The lead screw side shift traversing fork according to claim 6, wherein: The second guiding mechanism includes a second guide rail (13) and a second slider. The second guide rail (13) is fixedly connected to the other side of the front frame (3) relative to the first guide rail (4). The second slider is slidably connected to the second guide rail (13) and is fixedly connected to the arm (1).

8. The lead screw side shift traversing fork according to claim 6, wherein: The locking mechanism includes a limiting plate (14) and a spring pin (15). The limiting plate (14) has several insertion holes (19) for the spring pin (15) to be inserted. The limiting plate (14) is fixedly connected to the front frame (3), and the spring pin (15) is slidably connected to the arm (1).

9. The lead screw side shift traversing fork according to claim 6, wherein: Accordion covers (16) are provided between the two sides of the rear plate (2) and the front frame (3), and between the two sides of the two armrests (1) and the front frame (3).

10. The lead screw side shift traversing fork according to claim 1, wherein: The rear plate (2) is fixedly connected to two back plates (17) on the other side of the front frame (3), and each of the two back plates (17) is rotatably connected to a roller shaft (18).

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