Forklift, quick detachable front fork for forklift and working method thereof

Abstract

This invention belongs to the field of container handling technology, specifically relating to a quick-release structure for a forklift front fork, and more particularly to a forklift, a quick-release forklift front fork, and its working method. The quick-release forklift front fork includes: a lifting frame; two sliding joints; and a fork body. Each sliding joint has a locking hole in its center. A locking element is provided at the mating point between the fork body and the locking hole. Impact parts are provided on both sides of the locking element. After the sliding joints move left and right along the lifting frame, they impact the locking element through the impact parts on the locking element. By providing impact parts on the locking element, after the sliding joints move left and right along the lifting frame, the impact parts impact the locking element, resetting the center of gravity of the fork body. This prevents the center of gravity from shifting due to metal gaps, avoids the fork body from jamming or tilting, ensures the fork body remains stable, and avoids risks such as cargo falling or equipment malfunction caused by a shifted center of gravity.

Description

Technical Field

[0001] This invention belongs to the field of container handling technology, specifically relating to a quick-release structure for a forklift front fork, and more particularly to a forklift, a quick-release front fork for a forklift, and its working method. Background Technology

[0002] Forklifts are commonly used equipment for container handling, and their forks need to be disassembled from time to time for maintenance.

[0003] In related technologies, quick-release forks are used to facilitate fork replacement. This involves a structure of a dropper frame, a sliding joint, and a snap-fit ​​fork body. The fork body is fixed to the sliding joint via metal snap-fit ​​components. A certain gap is reserved between the metal parts for easy assembly. When the sliding joint moves to change the fork spacing, the reserved gap will cause a deviation in the relative position of the fork body and the sliding joint. This will cause the center of gravity of the fork body to shift with the change in gap, making the fork body prone to jamming. This will cause the fork body to tilt upwards or to one side, affecting the operational safety of the forklift.

[0004] Therefore, how to avoid the jamming phenomenon caused by the unstable center of gravity of quick-release forks due to metal gaps during use is a technical problem that urgently needs to be solved.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one forklift, a quick-release forklift forklift, and a method for operating the forklift.

[0007] In a first aspect, embodiments of this disclosure provide a quick-release fork for a forklift, comprising: Lifting frame; Two movable joints are slidably mounted on the lifting frame; The fork body, which is fastened to the sliding joint; The movable pair has a fastening hole in the middle. The top of the fork body is hook-shaped and is fastened to the top of the sliding joint; The fork body is provided with a fastening element at the fitting point of the fastening hole; The fastener has impact portions on both sides, and the impact portions are elastically connected to the fastener. After the moving part moves left and right along the lifting frame, it impacts the fastener with the impact part on the fastener to reset the center of gravity of the fork body.

[0008] In one optional embodiment, impact grooves are provided on both sides of the end of the fastener; The impact groove is frustum-shaped; The impact part is elastically connected to the impact groove via a return spring.

[0009] In one alternative embodiment, when the impact part impacts the fastening member, the impact of the impact part is guided by a frustum-shaped impact groove.

[0010] In one optional embodiment, the impact portion includes: An insertion shaft is inserted into the impact groove at one end; The impact disc is fixedly mounted on the insertion shaft away from the impact groove. The length of the insertion shaft is less than the length of the impact groove.

[0011] In one optional embodiment, a groove is provided at the fitting point between the lifting frame and the impact part; A damping layer is provided inside the chute; The impact part is slidably disposed in the groove and abuts against the damping layer in the groove; When the moving part moves left and right along the lifting frame, it causes the corresponding impact part to separate from the fastening part. After the moving part stops moving, the impact part impacts the fastening part under the action of elasticity to reset the center of gravity of the fork body.

[0012] In one optional embodiment, the groove is an arc-shaped groove; Furthermore, the curvature of the arc-shaped groove is adapted to the impact part.

[0013] In one alternative embodiment, the fastening element includes: An insertion block is fixedly mounted on the fork body; A limiting block is disposed below the insertion block, and the limiting block abuts against the back of the lifting frame; The insertion block and the limiting block are connected by a pin.

[0014] In one optional embodiment, the limiting block is inverted L-shaped; Furthermore, the upper side of the limiting block abuts against the back of the fork body; The lower side of the limiting block abuts against the back of the lifting frame.

[0015] Secondly, embodiments of this disclosure also provide a forklift, comprising: Forklift body; For example, the forklifts mentioned above use quick-release forks; The forklift features a quick-release fork mounted on the mast of the forklift body.

[0016] Thirdly, this disclosure also provides a method for operating a forklift using the quick-release fork described above, comprising: The movable pair moves along the lifting frame; The impact part separates from the fastener; After the moving part stops moving, the impact part impacts the fastening part under the action of elastic force to reset the center of gravity of the fork body.

[0017] The beneficial effects of this invention are that the forklift, the quick-release fork for the forklift and its working method are provided with an impact part on the fastening part. After the moving part moves left and right along the lifting frame, the impact part will impact the fastening part and reset the center of gravity of the fork body. This avoids the center of gravity of the fork body due to metal gaps, prevents the fork body from getting stuck or tilting, ensures that the fork body is always in a stable state, and avoids the risks of goods falling or equipment loss of control caused by the shift of the center of gravity.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a quick-release fork for a forklift provided in an embodiment of this disclosure; Figure 2 A first-view cross-sectional view of a quick-release forklift provided in an embodiment of this disclosure; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A second-view cross-sectional view of a quick-release forklift provided in an embodiment of this disclosure; Figure 5A flowchart illustrating the working method of a quick-release forklift provided in an embodiment of this disclosure.

[0022] In the diagram: 100, lifting frame; 200, sliding pair; 210, fastening hole; 300, front fork body; 310, fastening part; 311, insertion block; 312, limiting block; 3121, lower side; 3122, upper side; 313, pin; 320, impact part; 321, insertion shaft; 322, impact plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0025] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research has found that, in order to facilitate the replacement of the fork, a quick-release fork is used, namely: a dropper frame, a sliding joint, and a snap-fit ​​fork body structure. The fork body is fixed to the sliding joint by metal snap-fit ​​parts. A certain gap is reserved between the metal parts for easy assembly. When the sliding joint moves to change the fork spacing, the reserved gap will cause the relative position of the fork body and the sliding joint to deviate. This will cause the center of gravity of the fork body to deviate with the change of the gap, which will make the fork body prone to jamming. This will cause the fork body to tilt upward or to one side, affecting the operating safety of the forklift.

[0030] Based on the above research, this disclosure provides a forklift, a quick-release fork for the forklift, and its working method. By setting an impact part 320 on the fastening part 310, after the moving part 200 moves left and right along the lifting frame 100, the impact part 320 will impact the fastening part 310, resetting the center of gravity of the fork body 300. This avoids the center of gravity of the fork body 300 due to metal gaps, prevents the fork body 300 from getting stuck or tilting, ensures that the fork body 300 is always in a stable state, and avoids risks such as cargo falling or equipment loss of control caused by center of gravity shift.

[0031] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figure 1 and Figure 2 At least one embodiment provides a quick-release fork for a forklift, comprising: a lifting frame 100; two sliding joints 200 slidably disposed on the lifting frame 100; and a fork body 300 fastened to the sliding joints 200; wherein, a fastening hole 210 is provided in the middle of the sliding joint 200; the top of the fork body 300 is hook-shaped and fastened to the top of the sliding joint 200; a fastening member 310 is provided at the fitting point between the fork body 300 and the fastening hole 210; impact parts 320 are provided on both sides of the fastening member 310, and the impact parts 320 are elastically connected to the fastening member 310; after the sliding joint 200 moves left and right along the lifting frame 100, the impact parts 320 on the fastening member 310 impact the fastening member 310 to reset the center of gravity of the fork body 300.

[0035] By setting an impact part 320 on the fastening part 310, after the moving part 200 moves left and right along the lifting frame 100, the impact part 320 will impact the fastening part 310, resetting the center of gravity of the fork body 300. This avoids the center of gravity of the fork body 300 being established due to metal gaps, prevents the fork body 300 from getting stuck or tilting, ensures that the fork body 300 is always in a stable state, and avoids risks such as cargo falling or equipment loss of control caused by the shift of the center of gravity.

[0036] Please see Figure 2 and Figure 3 Specifically, the fastener 310 has impact grooves on both sides of its end; the impact grooves are frustoconical; the impact part 320 is elastically connected to the impact grooves via a return spring. When the impact part 320 impacts the fastener 310, the impact of the impact part 320 is guided by the frustoconical impact grooves.

[0037] The return spring provides a stable and controllable elastic return force to the impact part 320, ensuring that the impact part 320 can accurately rebound and impact the fastener 310 after the moving pair 200 stops moving; the frustum-shaped impact groove not only provides a suitable installation space for the impact part 320, but also accurately guides the reset of the impact part 320.

[0038] Please continue reading. Figure 2 and Figure 3 The impact part 320 includes: an insertion shaft 321, one end of which is inserted into the impact groove; and an impact circular plate 322, which is fixedly disposed on the insertion shaft 321 away from the impact groove; wherein the length of the insertion shaft 321 is less than the length of the impact groove.

[0039] The insertion shaft 321 is shorter than the impact groove, providing a small displacement space for the impact part 320 to avoid rigid collision damage to the parts. At the same time, the impact disc 322 increases the impact contact area and disperses the impact force, which not only protects the fastener 310 and the impact part 320 from damage, but also ensures that the impact force is evenly transmitted to the fastener 310, thus ensuring the reliability of the center of gravity reset of the fork body 300.

[0040] Please see Figure 1 and Figure 2 A sliding groove is provided at the fitting point between the lifting frame 100 and the impact part 320; a damping layer is provided in the sliding groove; the impact part 320 is slidably disposed in the sliding groove and abuts against the damping layer in the sliding groove; when the moving pair 200 moves left and right along the lifting frame 100, it drives the corresponding impact part 320 to separate from the fastening member 310; after the moving pair 200 stops moving, the impact part 320 impacts the fastening member 310 under the action of elastic force to reset the center of gravity of the fork body 300.

[0041] The groove guides the impact part 320 to move along a fixed trajectory to avoid displacement. At the same time, the damping layer makes the impact part 320 lag behind the movement of the fork body 300 when it moves, thereby separating the fastener 310 from the impact part 320.

[0042] In order to increase the contact area between the impact part 320 and the groove, the groove is an arc-shaped groove; and the curvature of the arc-shaped groove is adapted to the impact part 320.

[0043] Please see Figure 2 and Figure 4 The fastening component 310 includes: an insertion block 311, which is fixedly disposed on the front fork body 300; a limiting block 312, which is disposed below the insertion block 311, and the limiting block 312 abuts against the back of the lifting frame 100; the insertion block 311 and the limiting block 312 are connected by a pin 313.

[0044] Specifically, the limiting block 312 is inverted L-shaped; and the upper side 3122 of the limiting block 312 abuts against the back of the fork body 300; the lower side 3121 of the limiting block 312 abuts against the back of the lifting frame 100. By having the upper side 3122 and the lower side 3121 of the limiting block 312 abut against the fork body 300 and the lifting frame 100 respectively, the fork body 300 is thus engaged with the sliding joint 200 and the lifting frame 100.

[0045] It should be noted that when it is necessary to disassemble the fork body 300, the fork body 300 can be disassembled simply by removing the pin 313, thus achieving quick disassembly.

[0046] At least one embodiment also provides a forklift, including: a forklift body; and a quick-release forklift as described above; wherein the quick-release forklift is mounted on the mast of the forklift body.

[0047] Thirdly, this disclosure also provides a working method for a forklift with a quick-release front fork as described above. By providing an impact part 320 on the fastening member 310, after the moving part 200 moves left and right along the lifting frame 100, the impact part 320 will impact the fastening member 310, resetting the center of gravity of the front fork body 300. This avoids the establishment of the center of gravity of the front fork body 300 due to metal gaps, prevents the front fork body 300 from getting stuck or tilting, ensures that the front fork body 300 is always in a stable state, and avoids risks such as cargo falling or equipment loss of control caused by the shift of the center of gravity.

[0048] Specifically, the working method includes: S110: The movable pair 200 moves along the lifting frame 100; S120: The impact part 320 separates from the fastening part 310; S130: After the moving pair 200 stops moving, the impact part 320 impacts the fastening part 310 under the action of elastic force to reset the center of gravity of the fork body 300.

[0049] In summary, this invention provides a forklift, a quick-release fork for the forklift, and a method for operating the forklift. The quick-release fork for the forklift includes: a lifting frame 100; two sliding joints 200 slidably disposed on the lifting frame 100; and a fork body 300 fastened to the sliding joints 200. A fastening hole 210 is provided in the middle of the sliding joint 200. The top of the fork body 300 is hook-shaped and fastened to the top of the sliding joint 200. A fastening member 310 is provided at the mating point between the fork body 300 and the fastening hole 210. Impact portions 320 are provided on both sides of the fastening member 310, and the impact portions 320 are elastically connected to the fastening member 310. After the sliding joint 200 moves left and right along the lifting frame 100, the impact portions 320 on the fastening member 310 impact the fastening member 310 to reset the center of gravity of the fork body 300. By setting an impact part 320 on the fastening part 310, after the moving part 200 moves left and right along the lifting frame 100, the impact part 320 will impact the fastening part 310, resetting the center of gravity of the fork body 300. This avoids the center of gravity of the fork body 300 being established due to metal gaps, prevents the fork body 300 from getting stuck or tilting, ensures that the fork body 300 is always in a stable state, and avoids risks such as cargo falling or equipment loss of control caused by the shift of the center of gravity.

[0050] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0051] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0052] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0053] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0054] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A quick detachable front fork for a fork lift truck, characterized by, include: Lifting frame (100); Two movable joints (200) are slidably disposed on the lifting frame (100); The fork body (300) is fastened to the sliding joint (200); The movable pair (200) has a fastening hole (210) in the middle. The top of the fork body (300) is hook-shaped and is fastened to the top of the sliding joint (200); The fork body (300) is provided with a fastening element (310) at the mating point with the fastening hole (210). The fastener (310) is provided with impact parts (320) on both sides, and the impact parts (320) are elastically connected to the fastener (310). After the moving part (200) moves left and right along the lifting frame (100), the impact part (320) on the fastener (310) impacts the fastener (310) to reset the center of gravity of the fork body (300).

2. The quick-release forklift fork as described in claim 1, characterized in that, Impact grooves are provided on both sides of the end of the fastener (310); The impact groove is frustum-shaped; The impact part (320) is elastically connected to the impact groove via a return spring.

3. The quick-release forklift fork as described in claim 1, characterized in that, When the impact part (320) impacts the fastener (310), the impact of the impact part (320) is guided by the frustum-shaped impact groove.

4. The quick-release forklift fork as described in claim 2, characterized in that, The impact portion (320) includes: An insertion shaft (321) is inserted into the impact groove at one end; The impact disc (322) is fixedly disposed on the insertion shaft (321) away from the impact groove; The length of the insertion shaft (321) is less than the length of the impact groove.

5. The quick-release forklift fork as described in claim 1, characterized in that, The lifting frame (100) and the impact part (320) are provided with a sliding groove at the fitting point; A damping layer is provided inside the chute; The impact part (320) is slidably disposed in the groove and abuts against the damping layer in the groove; When the movable pair (200) moves left and right along the lifting frame (100), it causes the corresponding impact part (320) to separate from the fastener (310). After the movable pair (200) stops moving, the impact part (320) impacts the fastener (310) under the action of elastic force to reset the center of gravity of the fork body (300).

6. The quick-release forklift for claim 5, characterized in that, The groove is an arc-shaped groove; Furthermore, the curvature of the arc groove is adapted to the impact part (320).

7. The quick-release fork for a forklift as described in claim 1, characterized in that, The fastening element (310) includes: An insert block (311) is fixedly mounted on the fork body (300); A limiting block (312) is disposed below the insertion block (311), and the limiting block (312) abuts against the back of the lifting frame (100); The insertion block (311) and the limiting block (312) are connected by a pin (313).

8. The quick-release forklift for claim 7, characterized in that, The limiting block (312) is inverted L-shaped; Furthermore, the upper side (3122) of the limiting block (312) abuts against the back of the fork body (300); The lower side (3121) of the limiting block (312) abuts against the back of the lifting frame (100).

9. A fork lift truck characterised in that, include: Forklift body; The quick-release forklift as described in claim 1; The forklift features a quick-release fork mounted on the mast of the forklift body.

10. A method for operating a forklift quick-release fork as described in claim 1, characterized in that, include: The movable pair (200) moves along the lifting frame (100); The impact part (320) separates from the fastener (310); After the moving pair (200) stops moving, the impact part (320) impacts the fastener (310) under the action of elastic force to reset the center of gravity of the fork body (300).

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