Lifting mechanism

Abstract

The utility model relates to a lifting mechanism. The lifting mechanism comprises a frame body; the moving part is configured to be capable of moving along the frame body; the supporting assembly comprises a first connecting rod, the first end of the first connecting rod is hinged to the frame body, and the first connecting rod is configured to rotate around the first end of the first connecting rod; the second connecting rod is in contact with the first connecting rod and extends outwards along the contact part of the second connecting rod and the first connecting rod; the supporting assembly is connected with the moving part. The lifting mechanism has the lifting function of the frame body and the lifting function of the supporting piece at the same time, the forklift structure can be simplified, the forklift cost is reduced, and the forklift size is reduced.

Description

Technical Field

[0001] This application relates to the field of forklift robot devices, and in particular to a lifting mechanism. Background Technology

[0002] AGV pallet trucks are a type of forklift robot. Existing AGV pallet trucks mainly rely on inserting forks into the bottom holes of the pallet to lift and raise the goods, and then carry out the transportation of the pallet and goods, thereby realizing the automatic picking and transportation of pallets and goods.

[0003] Existing AGV pallet trucks are generally only suitable for handling zigzag pallets, metal pallets, or goods with forklift access. They are not suitable for handling grid pallets or goods with bottom barriers. If the vehicle is forced to pick up a grid pallet or goods with bottom barriers, the vehicle's wheels will interfere with the bottom edge of the pallet or the bottom barriers as they roll forward. This requires the wheels to roll over the bottom edge of the pallet or the bottom barriers of the goods, generating a significant impact force that can damage the pallet and greatly reduce its lifespan. Utility Model Content

[0004] This application aims to solve at least one of the above-mentioned technical problems by providing a lifting mechanism to ensure that the applicability of the forklift robot is improved and the service life of the forklift robot is increased.

[0005] The lifting mechanism provided in this application adopts the following technical solution:

[0006] A lifting mechanism, comprising:

[0007] Framework body;

[0008] A movable element configured to move along the frame body;

[0009] Support component, the support component includes:

[0010] A first link, the first end of which is hinged to the frame body, is configured to rotate about its first end;

[0011] The second link is in contact with the first link and extends outward along the point of contact between them;

[0012] The support component is connected to the moving part.

[0013] Optionally, there are multiple sets of support components, which are connected by a third link, and at least one set of support components is connected to the moving part.

[0014] Optionally, the lifting mechanism is used for a forklift; the lifting mechanism further includes a driving component; the driving component includes a driving source, a driving component, and a driven component;

[0015] The drive source is connected to the driving member, and the driving member is connected to the driven member; the drive source drives the driving member to move, the movement of the driving member drives the driven member to move, and the driven member performs linear movement;

[0016] The second link is rotatably connected to the driven member, and the first link is rotatably connected to the second link; the frame body is connected to the first link; the movement of the driven member drives the movement of the second link, and the first link restricts the movement of the second link.

[0017] Furthermore, the transmission method by which the movement of the driving member drives the movement of the driven member is one or more of the following: screw drive, lead screw drive, linear motor drive, hydraulic drive, pneumatic drive, gear and rack drive, belt drive, and chain drive.

[0018] Furthermore, the transmission method by which the movement of the driving member drives the movement of the driven member is screw transmission, wherein the driving member is a screw and the driven member is a nut;

[0019] Alternatively, the transmission method in which the movement of the driving member drives the movement of the driven member is a lead screw drive, wherein the driving member is a lead screw and the driven member is a nut.

[0020] Optionally, the support assembly further includes a support member; the support member is connected to the second link.

[0021] Optionally, the number of the second connecting rods in the support assembly is 2, and the number of the first connecting rods in the support assembly is 2.

[0022] Furthermore, the number of support components is two.

[0023] Furthermore, the number of the driven members is one or more.

[0024] Furthermore, the forklift component also includes a slide rail and a slider; the slide rail is connected to the frame body, and the slider is movably connected to the slide rail; the slider is connected to the third link or the driven member.

[0025] In summary, this application provides a lifting mechanism that integrates the lifting of the forklift's frame body with the lifting of the support component. The lifting of the support component allows the forklift to avoid interference with the bottom edge of the pallet or the bottom support of the goods when picking up a grid pallet or a pallet with a bottom stop bar, eliminating the need for the support component to roll over these surfaces. This avoids damage to the pallet caused by the impact force generated when the support component rolls over the bottom edge of the pallet or the bottom support of the goods, thus preventing a reduction in the pallet's lifespan. It also prevents cracking damage to the support component after being subjected to large impact forces, which would affect the normal use of the vehicle. Furthermore, it avoids vehicle posture deviation caused by large impact forces, which could lead to uncontrollable changes in vehicle positioning and navigation, thereby affecting the entire forklift's ability to pick up pallets or goods.

[0026] The integrated lifting design of the forklift's frame and support components allows the lifting mechanism to simultaneously perform the lifting functions of both the frame and the support components. This simplifies the forklift's structure, reduces costs, and minimizes its size. No additional lifting mechanism is needed to lift the support components. Attached Figure Description

[0027] Figure 1 This is a first structural schematic diagram of the lifting mechanism according to an embodiment of this application;

[0028] Figure 2 This is a schematic diagram of the second structure of the lifting mechanism in an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the third structure of the lifting mechanism in the embodiments of this application;

[0030] Figure 4 This is a schematic diagram of the fourth structure of the lifting mechanism in the embodiments of this application;

[0031] Figure 5 This is a first working schematic diagram of the lifting mechanism according to an embodiment of this application;

[0032] Figure 6 This is a second working schematic diagram of the lifting mechanism in an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 10. Drive component; 11. Drive source; 12. Driving component; 13. Driven component; 14. Third link; 15. Coupling; 16. Fixed end support; 17. Support end support; 18. Moving component; 20. Support assembly; 21. Second link; 22. First link; 23. Support component; 24. Connecting rod; 30. Forklift component; 31. Frame body; 32. Slide rail; 33. Slider; 34. Guide wheel; 35. Width limiting wheel; 36. Lifting component; 40. Ground; 50. Forklift; 60. Pallet. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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 this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0037] This application discloses a lifting mechanism. See also... Figure 1-6 A lifting mechanism may include a drive component 10, a support component 20, and a forklift component 30.

[0038] The drive component 10 may include a drive source 11, a driving component 12, a driven component 13, a third link 14, a coupling 15, a fixed end support 16, a supporting end support 17, and a moving component 18. The support assembly 20 may include a second link 21, a first link 22, a support component 23, and a connecting rod 24. The forklift component 30 may include a frame body 31, a slide rail 32, a slider 33, a guide wheel 34, a width limiting wheel 35, and a lifting component 36.

[0039] The drive source 11 is connected to the driving element 12 via a coupling 15, and the driving element 12 is connected to the driven element 13. The drive source 11 drives the driving element 12 to rotate, and the rotation of the driving element 12 causes the driven element 13 to move linearly.

[0040] Driven member 13 is connected to movable member 18. Movable member 18 is connected to third link 14. Fixed end support 16 and supporting end support 17 are connected to frame body 31. Driven member 12 passes through fixed end support 16 and supporting end support 17. Slide rail 32 is connected to frame body 31, slider 33 is connected to slide rail 32, and slider 33 can move on slide rail 32. Slider 33 is connected to third link 14.

[0041] The movement of the driven member 13 causes the moving member 18 to move, the movement of the moving member 18 causes the third link 14 to move, and the movement of the third link 14 causes the slider 33 to move along the slide rail 32.

[0042] The slider 33 and the slide rail 32 are configured to ensure the movement guidance of the follower 13 and facilitate the positioning of the movement distance of the follower 13. They also share the pressure and improve the load-bearing capacity.

[0043] The guide wheel 34 and the width limiting wheel 35 connect to the frame body 31. The guide wheel 34 facilitates the lifting and lowering movement of the entire lifting mechanism, improving the smoothness of the lifting and lowering movement and also facilitating the guidance of the lifting and lowering direction. The width limiting wheel 35 further improves the smoothness of the lifting and lowering movement, facilitates the guidance of the lifting and lowering direction, and also improves the anti-overturning ability during the lifting and lowering process, thereby enhancing the stability of the entire lifting mechanism.

[0044] The second link 21 is rotatably connected to the third link 14, and the first link 22 is rotatably connected to the second link 21. The first link 22 is connected to the frame body 31. The second link 21 is connected to the support member 23. The support member 23 is designed to prevent wear and tear on the second link 21 and to improve the service life of the lifting mechanism.

[0045] The movement of the third link 14 causes the second link 21 to move, and under the constraint of the first link 22, the second link 21 moves towards the ground, until the support member 23 contacts the ground. The movement of the third link 14 continues to drive the movement of the second link 21. Due to the constraint of the ground, the first link 22 lifts the frame body 31, thereby causing the frame body 31 to move up and down. The lifting and lowering of the frame body 31 drives the lifting and lowering of the tray.

[0046] The lifting member 36 is connected to the frame body 31, and the first connecting rod 22 is connected to the lifting member 36. The lifting member 36 facilitates the transmission of power by the first connecting rod 22, allowing the first connecting rod 22 to lift the frame body 31. Specifically, the lifting member 36 is fixedly connected to the frame body 31, and the first connecting rod 22 is rotatably connected to the lifting member 36.

[0047] There can be two support components 20. Each support component 20 is connected to a third link 14. The support components 20 are arranged along the direction of the frame body 31. Specifically, the second link 21 of one support component 20 is connected to one end of the third link 14; the second link 21 of the other support component 20 is connected to the other end of the third link 14.

[0048] By setting the third link 14, the movement of the two support components 20 can be synchronized, ensuring that the second links 21 of the two support components 20 move the same distance and the first links 22 lift the frame body 31 to the same height. This ensures the consistency of the lifting mechanism's raising and lowering and improves its stability.

[0049] Specifically, the support assembly 20 may include two second connecting rods 21, two first connecting rods 22, and two support members 23. Two third connecting rods 14 may also be provided. The third connecting rods 14 may be positioned on both sides of the movable member 18. One end of the connecting rod 24 is connected to one second connecting rod 21, and the other end is connected to the other second connecting rod 21. This allows for synchronized movement of the two second connecting rods 21, ensuring consistency.

[0050] Specifically, the driving element 12 can be a screw, and the driven element 13 can be a nut. The driving element 12 and the driven element 13 can be driven by the screw. Alternatively, the driving element 12 can be a lead screw, and the driven element 13 can be a nut. The driving element 12 and the driven element 13 can be driven by the lead screw.

[0051] Understandably, this application integrates the lifting mechanism design with the lifting of the frame body 31 and the support member 23 on the forklift 50. The lifting of the support member 23 allows the forklift 50 to avoid interference with the bottom edge of the pallet or the bottom support of the goods when picking up a grid pallet or a pallet with a bottom stop bar, eliminating the need for the support member 23 to roll over the bottom edge of the pallet or the bottom support bar. This prevents the impact force generated by the support member 23 rolling over the bottom edge of the pallet or the bottom support bar from damaging the pallet 60 and reducing its service life; it also prevents the support member 23 from cracking after being subjected to a large impact, affecting the normal use of the vehicle; and it avoids vehicle posture deviation caused by a large impact, which could lead to uncontrollable changes in vehicle positioning and navigation, thus affecting the forklift 50's ability to pick up the pallet 60 or goods.

[0052] The lifting mechanism of the frame body 31 and the support member 23 on the forklift 50 is integrated into one design, so that the lifting mechanism can simultaneously perform the lifting functions of the frame body 31 and the support member 23. This simplifies the structure of the forklift 50, reduces its cost, and minimizes its size. No additional lifting mechanism is needed to lift the support member 23.

[0053] It is understood that the support assembly 20 may include two second connecting rods 21, two first connecting rods 22, and two support members 23 as a preferred embodiment of this application. This application does not impose specific limitations on the exact number of the second connecting rods 21, first connecting rods 22, and support members 23. The exact number of the second connecting rods 21, first connecting rods 22, and support members 23 does not affect the technical solution of this application from achieving its function and technical effect. That is, the number of second connecting rods 21, first connecting rods 22, and support members 23 can be one or more.

[0054] It is understood that the connecting rod 24 is a preferred embodiment of this application. The support component 20 may not include the connecting rod 24. This does not affect the functionality and technical effect of the technical solution of this application.

[0055] It is understood that the number of support components 20 can be two, which is a preferred embodiment of this application. This application does not impose a specific limitation on the number of support components 20, and the specific number of support components 20 does not affect the technical solution of this application from achieving its function and technical effect. That is, the number of support components 20 can be one or more.

[0056] It is understood that the connection between slider 33 and third link 14 is a preferred embodiment of this application. Slider 33 can also be connected to moving member 18, and slider 33 can also be connected to driven member 13. This does not affect the technical solution of this application from realizing its function and achieving its technical effect.

[0057] It is understood that the configuration of slider 33 and slide rail 32 is a preferred embodiment of this application. The forklift component 30 may not include slider 33 and slide rail 32 without affecting the functionality and technical effect of the technical solution of this application.

[0058] It is understood that the movable component 18 is a preferred embodiment of this application. The driving component 10 may not include the movable component 18, and the third link 14 may be directly connected to the driven component 12. This does not affect the technical solution of this application from achieving its function and technical effect.

[0059] It is understood that the third link 14 is a preferred embodiment of this application. The drive component 10 may not include the third link 14. The support component 20 may be directly connected to the driven component 12. This does not affect the technical solution of this application from achieving its function and technical effect.

[0060] It is understood that this application does not impose a specific limit on the number of follower 12. The specific number of follower 12 does not affect the functionality and technical effect of the technical solution of this application.

[0061] For example, there can be multiple support components 20 and multiple driven members 12. The driven members 12 are connected to the support components 20, and the driving member 11 drives multiple simultaneous driven members 12 to move, thereby driving the support components 20 to perform lifting and lowering movements.

[0062] Alternatively, there can be multiple support components 20 and multiple driven members 12. The driven members 12 are connected to the third link 14. The driving member 11 drives multiple simultaneous driven members 12 to move, thereby driving the third link 14 to move, and thus driving the support components 20 to perform lifting and lowering movements.

[0063] Alternatively, slots may be provided at the positions where multiple driven members 12 are connected to the third link 14 to ensure that the movement of the driven members 12 has a certain degree of redundancy, thereby avoiding placing excessively high requirements on the consistency of the movement distance of multiple driven members 12 simultaneously driven by the driving member 11.

[0064] It is understood that this application does not impose specific restrictions on the transmission method between the driving member 11 and the driven member 12. The transmission method can be one or more of the following: screw drive, lead screw drive, linear motor drive, hydraulic drive, pneumatic drive, gear and rack drive, belt drive, and chain drive. This does not affect the functionality and technical effect of the technical solution of this application.

[0065] It is understood that this application does not limit the specific form of the support member 23. The support member 23 can be a wheel, a bearing, or a foot pad. This application does not impose any restrictions on this, as long as the support member 23 can be used for ground support.

[0066] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A lifting mechanism, characterized by: include: Framework body; A movable element configured to move along the frame body; Support component, the support component includes: A first link, the first end of which is hinged to the frame body, is configured to rotate about its first end; The second link is in contact with the first link and extends outward along the point of contact between them; The support component is connected to the moving part.

2. The lifting mechanism of claim 1, wherein, The support components are in multiple sets, which are connected by a third link, and at least one set of the support components is connected to the moving part.

3. A lifting mechanism according to claim 2, wherein: The lifting mechanism is used in a forklift; the lifting mechanism also includes a drive component; the drive component includes a drive source, a driving component, and a driven component; The drive source is connected to the driving member, and the driving member is connected to the driven member; the drive source drives the driving member to move, the movement of the driving member drives the driven member to move, and the driven member performs linear movement; The second link is rotatably connected to the driven member, and the first link is rotatably connected to the second link; the frame body is connected to the first link; the movement of the driven member drives the movement of the second link, and the first link restricts the movement of the second link.

4. A lifting mechanism according to claim 3, wherein: The transmission method by which the movement of the driving member drives the movement of the driven member is one or more of the following: screw drive, lead screw drive, linear motor drive, hydraulic drive, pneumatic drive, gear and rack drive, belt drive, and chain drive.

5. A lifting mechanism according to claim 4, wherein: The transmission method in which the movement of the driving member drives the movement of the driven member is screw transmission, wherein the driving member is a screw and the driven member is a nut; Alternatively, the transmission method in which the movement of the driving member drives the movement of the driven member is a lead screw drive, wherein the driving member is a lead screw and the driven member is a nut.

6. A lifting mechanism according to claim 1, characterized in that: The support assembly further includes a support member; the support member is connected to the second link.

7. A lifting mechanism according to claim 1, wherein: The support assembly has two second connecting rods and two first connecting rods.

8. A lifting mechanism according to claim 2, wherein: The number of support components is 2.

9. A lifting mechanism according to claim 3, wherein: The number of the driven members is one or more.

10. A lifting mechanism according to claim 9, wherein: The lifting mechanism further includes a slide rail and a slider; the slide rail is connected to the frame body, and the slider is movably connected to the slide rail; the slider is connected to the third link or the driven member.

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