Lifting mechanism for loading and unloading equipment

Abstract

The invention provides a lifting mechanism for loading and unloading equipment, which relates to the technical field of loading and unloading and comprises a frame, a plurality of upright posts are fixedly connected to two sides of the frame, a side plate is mounted between every two adjacent upright posts, rotating rods are rotatably connected to the top ends of the upright posts, and the top ends of the rotating rods on the upright posts on the same side are rotatably connected to the same sliding rail. Two parallel sliding rails are formed, two hydraulic rods are installed on the frame, the middle of a rotating rod connected with one end of each sliding rail is rotationally connected with the telescopic end of the corresponding hydraulic rod, sliding blocks are connected to the two sliding rails in a sliding mode, a supporting rod is fixed between the two sliding blocks, and a hook is connected to the lower portion of the supporting rod in a sliding mode. A stable horizontal moving frame is constructed through a parallel supporting structure formed by the rotating rods at the top ends of the stand columns and the sliding rails, the lifting mode that the hydraulic rods drive the rotating rods to rotate is matched, flexible adjustment of the height of the sliding rails is achieved, no space is occupied, meanwhile, the hooks can reach all corners of the vehicle frame, and therefore dead-corner-free transportation is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of loading and unloading, in particular to a lifting mechanism for loading and unloading equipment. BACKGROUND

[0002] With the continuous expansion of logistics transportation, emergency rescue and special operation scenarios, amphibious vehicles have been increasingly widely applied in the fields of cargo transfer and field operation due to their characteristics of being able to travel in both land and water environments. The core advantage of such vehicles is that they can break through the terrain restrictions and realize continuous operation across water and land, but the problems in the process of loading and unloading of such vehicles are also brought about. Not only do they need to meet the requirements of loading and unloading efficiency of conventional land vehicles, but they also need to adapt to the unstable working conditions that may occur during the conversion of vehicles between land and water, and match the structural characteristics of the vehicles to realize efficient and safe transfer of goods on the vehicle body.

[0003] At present, the loading and unloading lifting equipment for ordinary land vehicles is relatively mature, but when it is directly applied to amphibious vehicles, there are often many adaptability problems. On the one hand, traditional lifting mechanisms only have a single lifting function and need to rely on additional handling equipment to realize the position transfer of goods between the front and rear of the vehicle. This process not only increases the operation steps and labor intensity, but also reduces the overall loading and unloading efficiency due to the intervention of additional equipment. Especially in the scene of lack of auxiliary equipment in the field and water area, the operation limitation is more prominent. On the other hand, some loading and unloading equipment integrated with moving function has complex structure design and large self-weight, which not only occupies the already tight carrying space of amphibious vehicles, but also may affect the buoyancy balance and driving stability of the vehicles, and cannot meet the demand of lightweight and compactness of the equipment for amphibious operation. In addition, the amphibious vehicle often needs to face the uneven temporary operation surface during loading and unloading, and the stability and adjustment flexibility of the traditional lifting mechanism are insufficient, which is easy to cause lifting imbalance and goods shaking. Not only may it cause damage to the goods, but also there is a certain safety hazard.

[0004] Therefore, aiming at the operation characteristics of amphibious vehicles, a lifting mechanism for loading and unloading equipment with stable lifting function and efficient horizontal transfer function is developed to realize the continuous and smooth movement of goods from the front to the rear of the vehicle, which has become a key requirement to improve the operation efficiency of amphibious vehicles and expand their application scenarios. SUMMARY

[0005] The present application aims to solve the problem of the complex structure and large self-weight of the existing mobile equipment which is not suitable for the limited carrying space of amphibious vehicles.

[0006] To address the aforementioned problems, this invention provides a lifting mechanism for loading and unloading equipment, comprising a frame, with several columns fixedly connected to both sides of the frame, and a side plate installed between two adjacent columns. A rotating rod is rotatably connected to the top of each column, and the top of the rotating rod on the same side column is rotatably connected to the same slide rail, forming two parallel slide rails. Two hydraulic rods are installed on the frame, and the middle part of the rotating rod connected to one end of the slide rail is rotatably connected to the telescopic end of the hydraulic rod. A slider is slidably connected to each of the two slide rails, and a support rod is fixed between the two sliders. A hook is slidably connected to the bottom of the support rod.

[0007] The lifting mechanism for loading and unloading equipment provided by this invention has, but is not limited to, the following beneficial effects compared to the prior art: The parallel slide rail structure formed by the rotating rod at the top of the column and the slide rail creates a stable horizontal moving frame. Combined with the lifting method of the rotating rod driven by the hydraulic rod, the height of the slide rail can be flexibly adjusted. When the hydraulic rod extends or retracts, it drives the slide rail to rise or fall through the lever action of the rotating rod, which can adapt to different loading and unloading height requirements. The slider on the slide rail cooperates with the support rod, so that the hook can move along the slide rail direction, directly realizing the horizontal transfer of heavy objects from the front to the rear of the vehicle. From the overall structure, the slide rail is located above the goods, which does not occupy space, and the hook can reach all corners of the frame, thus achieving transportation without dead angles.

[0008] Furthermore, the columns are symmetrically and equidistantly distributed on both sides of the vehicle frame, and the columns are fixedly connected to the vehicle frame by welding.

[0009] Furthermore, both ends of the rotating rod are rotatably connected to the top of the column and the bottom of the slide rail via bearings, and the length of the rotating rod on the same side is consistent.

[0010] Furthermore, the extension and retraction of the hydraulic rod can drive the rotating rods on both sides to rotate around their connection point with the column, thereby adjusting the height of the slide rail.

[0011] Furthermore, the two hydraulic rods can be controlled independently to drive the rotating rods on their respective sides to rotate.

[0012] Furthermore, the side wall of the slider is provided with a locking bolt for positioning. The end of the locking bolt can abut against the side wall of the slide rail to fix the slider on the slide rail.

[0013] Furthermore, the corner of one side of the column is an L-shaped notch, and the two sides of the side plate are integrally formed with flanges that are adapted to the L-shaped notch. A groove is opened in the L-shaped notch, and a sealing strip is adhered in the groove.

[0014] Furthermore, both ends of the bottom of the slide rail are provided with limiting blocks, and the inner side of the limiting blocks is provided with a buffer rubber pad.

[0015] Furthermore, a slide rail is provided below the support rod along its length, and a pulley that cooperates with the slide rail is provided on the upper part of the hook.

[0016] Furthermore, a lighting lamp is slidably connected to the support rod, and the lighting lamp is fixedly connected to the pulley. The illumination direction of the lighting lamp is perpendicular to the length direction of the slide rail. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the lifting mechanism of the present invention in the lifting working state; Figure 2 This is a schematic diagram of the lifting mechanism of the present invention in its unlifted working state.

[0018] Figure 3 For the present invention Figure 1 Enlarged view of the structure at point A in the middle.

[0019] Explanation of reference numerals in the attached figures: 1. Frame; 2. Side panel; 3. Column; 4. Rotating rod; 5. Slide rail; 6. Slider; 7. Support rod; 8. Hydraulic rod; 9. Hook; 10. Groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., 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 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. Therefore, they should not be construed as limitations on this invention.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.

[0025] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0026] See Figure 1 and 2 An embodiment of the present invention provides a lifting mechanism for loading and unloading equipment, comprising a frame 1, wherein a plurality of columns 3 are fixedly connected to both sides of the frame 1, and a side plate 2 is installed between two adjacent columns 3. A rotating rod 4 is rotatably connected to the top of the column 3, and the top of the rotating rod 4 located on the same side column 3 is rotatably connected to the same slide rail 5, forming two parallel slide rails 5. Two hydraulic rods 8 are installed on the frame 1, and the middle part of the rotating rod 4 connected to one end of the slide rail 5 is rotatably connected to the telescopic end of the hydraulic rod 8. A slider 6 is slidably connected to both slide rails 5, and a support rod 7 is fixed between the two sliders 6. A hook 9 is slidably connected to the bottom of the support rod 7.

[0027] In this embodiment, the two ends of the frame 1 are the front and rear of the vehicle, respectively. The combination structure of the two ends of the frame 1 and the uprights 3 and side plates 2 on both sides of the frame 1 forms a barrier around the cargo inside the frame 1. The parallel support structure formed by the rotating rod 4 at the top of the upright 3 and the slide rail 5 creates a stable horizontal moving frame. With the lifting method of the rotating rod 4 driven by the hydraulic rod 8, the height of the slide rail 5 can be flexibly adjusted. When the hydraulic rod 8 extends or retracts, it drives the slide rail 5 to rise or fall through the lever action of the rotating rod 4, which can adapt to different loading and unloading height requirements. The slider 6 on the slide rail 5 cooperates with the support rod 7, so that the hook 9 can move along the direction of the slide rail 5, directly realizing the horizontal transfer of heavy objects from the front to the rear of the vehicle. The sliding connection between the hook 9 and the support rod 7 further improves the flexibility of the hook 9. From the overall structure, the slide rail 5 is located above the cargo and does not occupy space. At the same time, the hook 9 can reach all corners of the frame, and the position of the hook 9 can be adjusted according to the position of the cargo, realizing all-round cargo transportation within the frame 1.

[0028] See Figure 2 Optionally, the columns 3 are symmetrically and equidistantly distributed on both sides of the frame 1, and the columns 3 are fixedly connected to the frame 1 by welding.

[0029] In this embodiment, the symmetrical and equidistant distribution design ensures that the force exerted on the frame 1 by the column 3 is evenly distributed, avoiding the deformation of the frame 1 caused by the concentrated force on one side of the column 3. Especially when the amphibious vehicle is carrying heavy loads or floating on water, it can ensure the overall center of gravity of the vehicle is balanced and reduce the impact of uneven force on the vehicle's buoyancy and driving stability.

[0030] Optionally, both ends of the rotating rod 4 are rotatably connected to the top of the column 3 and the bottom of the slide rail 5 via bearings, and the length of the rotating rod 4 on the same side is consistent.

[0031] In this embodiment, the consistent length of the rotating rods 4 on the same side ensures that the rotating rods 4 on the same side rotate synchronously, keeping the slide rail 5 in a horizontal state at all times. This effectively improves the safety and stability of the operation, especially when hoisting precision or fragile goods.

[0032] Optionally, the extension and retraction of the hydraulic rod 8 can drive the rotating rods 4 on both sides to rotate around their connection point with the column 3, thereby adjusting the height of the slide rail 5.

[0033] In this embodiment, the hydraulic drive method itself has the advantages of large output force, stable operation and high adjustment precision, which can meet the needs of amphibious vehicles for lifting heavy objects.

[0034] Optionally, the two hydraulic rods 8 can be controlled independently to drive the rotating rods 4 on their respective sides to rotate.

[0035] In this embodiment, when the amphibious vehicle is operating, it often faces an uneven temporary working surface. At this time, by independently controlling the hydraulic rods 8 on both sides, a height difference can be formed between the two slide rails 5, so as to realize the tilt adjustment of the slide rails 5 and ensure that the slide rails 5 always remain parallel to the cargo placement surface, which facilitates the smooth transfer of cargo.

[0036] Optionally, the side wall of the slider 6 is provided with a locking bolt for positioning. The end of the locking bolt can abut against the side wall of the slide rail 5 to fix the slider 6 on the slide rail 5.

[0037] In this embodiment, after the hook 9 lifts the goods, when the goods are pushed along the slide rail 5 from the front to the rear of the vehicle, the slider 6 needs to drive the support rod 7 to move synchronously with the hook 9. When the goods reach the target position, the end of the slider 6 can be quickly fixed on the slide rail 5 by tightening the locking bolt to make it press against the side wall of the slide rail 5, thus preventing the slider 6 from sliding on its own due to vehicle vibration, road bumps or water swaying, and avoiding the goods from shifting or falling.

[0038] See Figure 3 Optionally, the corner of one side of the column 3 is an L-shaped notch, and the two sides of the side plate 2 are integrally formed with flanges that are adapted to the L-shaped notch. A groove 10 is provided in the L-shaped notch, and a sealing strip is adhered in the groove 10.

[0039] In this embodiment, when the amphibious vehicle is operating in water, water can easily seep into the frame 1 through the gap between the column 3 and the side plate 2, causing water to enter the cargo. The sealing strip can fill the connection gap and form a waterproof sealing layer to effectively prevent water intrusion.

[0040] Optionally, both ends of the bottom of the slide rail 5 are provided with limiting blocks, and the inner side of the limiting blocks is provided with a buffer rubber pad.

[0041] In this embodiment, the limiting blocks are set at both ends of the slide rail 5, which can effectively limit the movement range of the slider 6 and prevent the slider 6 from slipping off the end of the slide rail 5 due to operational errors or inertia, thus avoiding the hook 9 and the goods from falling.

[0042] Optionally, a slide rail is provided below the support rod 7 along its length, and a pulley that cooperates with the slide rail is provided on the hook 9.

[0043] In this embodiment, the sliding structure of the support rod 7 and the hook 9 allows the operator to easily push the hook 9 along the length of the support rod 7 to adjust its position without having to drag it. Especially when hoisting large goods, the spacing between multiple hooks 9 can be quickly adjusted to ensure that the hooks are evenly stressed and to prevent the goods from tilting due to uneven stress.

[0044] Optionally, a lighting lamp is slidably connected to the support rod 7, the lighting lamp is fixedly connected to the pulley, and the illumination direction of the lighting lamp is perpendicular to the length direction of the slide rail 5.

[0045] In this embodiment, the lighting lamp not only serves to achieve the lighting effect, but more importantly, the direction of the lighting lamp is perpendicular to the slide rail 5, that is, it points in the direction of pushing the goods, which can play a role in adjusting the position.

[0046] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A lifting mechanism for a cargo handling apparatus, characterized by comprising: The utility model relates to a kind of movable frame, including frame (1), the both sides of the frame (1) are fixedly connected with several columns (3), side plate (2) is installed between adjacent two columns (3), the top of the column (3) is rotatably connected with rotating rod (4), the top of rotating rod (4) on the same side column (3) is rotatably connected on the same slide rail (5), form two parallel slide rails (5), two hydraulic rods (8) are installed on the frame (1), the middle part of rotating rod (4) connected with one end of slide rail (5) is rotatably connected with the telescopic end of hydraulic rod (8), slide block (6) is slidably connected on two slide rails (5), support rod (7) is fixed between two slide blocks (6), hanger (9) is slidably connected below support rod (7).

2. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized in that, The column (3) is symmetrically equidistantly distributed on the both sides of the frame (1), and the column (3) is fixedly connected with the frame (1) by welding.

3. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized in that, Both ends of the rotating rod (4) are rotatably connected with the top of the column (3) and the bottom of the slide rail (5) through bearings, and the rotating rods (4) on the same side are consistent in length.

4. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized by The telescoping of the hydraulic rod (8) can drive the rotating rods (4) on both sides to rotate around the connecting points thereof with the columns (3), so as to adjust the height of the slide rail (5).

5. The lifting mechanism for a cargo handling apparatus according to claim 4, wherein The two hydraulic rods (8) can be independently controlled to drive the rotating rods (4) on the corresponding sides to rotate, respectively.

6. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized by The sidewall of the slide block (6) is provided with locking bolts for positioning, the end of the locking bolt can abut against the sidewall of the slide rail (5), so as to fix the slide block (6) on the slide rail (5).

7. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized by The corner of one side of the column (3) is an L-shaped notch, the side plate (2) is integrally formed with a flange matching the L-shaped notch on both sides, a groove (10) is formed in the L-shaped notch, and a sealing rubber strip is adhered in the groove (10).

8. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized by Both ends of the bottom of the slide rail (5) are provided with limiting stoppers, and the inner side of the limiting stopper is provided with a buffer rubber pad.

9. The lifting mechanism for a cargo handling apparatus according to claim 1, characterized by The lower portion of the support rod (7) is provided with a slide along the length direction thereof, and the upper portion of the hanger (9) is provided with a pulley matched with the slide.

10. The lifting mechanism for a cargo handling apparatus according to claim 9, characterized in that The support rod (7) is slidably connected with a lighting lamp, the lighting lamp is fixedly connected with the pulley, and the irradiation direction of the lighting lamp is perpendicular to the length direction of the slide rail (5).

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