Workpiece lifting appliance

Abstract

The utility model discloses a workpiece lifting appliance and belongs to the field of lifting appliances. A workpiece lifting appliance comprises a lifting appliance guide rod and further comprises a lifting appliance guide disc connected to the lifting appliance guide rod in a sliding mode, a connecting point is arranged on the edge of the lifting appliance guide disc, a first connecting part is rotationally arranged on the connecting point, a connecting hole is formed in the lower end of the lifting appliance guide rod, and the first connecting part is connected with the connecting hole through a connecting piece. The second connecting part is arranged at the tail end of the first connecting part, a hook plate is arranged on the second connecting part, and a limiting assembly is arranged on the outer wall of the hook plate; according to the utility model, the stable grabbing of the lifting claw can be kept in the lifting and carrying process, the phenomena of infirmness and unhooking of the lifting claw are prevented, the safety and efficiency during working are improved, time and labor are saved, the production safety is improved, and the safety of enterprises and field operators during construction is ensured.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a workpiece lifting equipment. Background Technology

[0002] In industrial production processes, especially in industries such as machinery manufacturing, heavy equipment assembly, and construction, the handling and hoisting of irregularly shaped and heavy workpieces is a critical task. These workpieces typically have complex shapes and large weights, posing numerous challenges to traditional handling methods.

[0003] In existing technologies, the lifting and handling of irregularly shaped and heavy workpieces are generally divided into two types: manual handling by multiple people and lifting and handling by mechanical lifting tools. Due to the irregular and heavy nature of the workpieces, the structural design of the lifting tools is generally not ideal. During the lifting and handling process, it is very easy for the lifting claws to not grip firmly or for the lifting claws to come off the hook. This is often accompanied by problems of high risk, low efficiency, and time and effort. In some cases, it can even lead to production accidents such as crushing injuries, causing considerable trouble for enterprises and on-site operators. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of unstable gripping and detachment of lifting claws during hoisting and handling in the prior art, which are often accompanied by high danger, low efficiency, and time and labor costs. Therefore, a workpiece hoisting tool is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A workpiece lifting device includes a lifting guide rod and a lifting guide disc slidably connected to the lifting guide rod. The lifting guide disc has a connection point on its edge, a first connecting portion rotatably disposed at the connection point, a connecting hole at the lower end of the lifting guide rod, and the first connecting portion connected to the connecting hole via a connector. A second connecting portion is disposed at the end of the first connecting portion, a hook plate is disposed on the second connecting portion, and a limit assembly is disposed on the outer wall of the hook plate.

[0007] To facilitate the three-point evenly distributed connection of the hook, preferably, the connecting part includes a multi-functional lifting hook and a lifting hook, a lifting block is provided at the connecting point, one end of the multi-functional lifting hook is rotatably connected to the lifting block, and the lifting hook is fixedly connected to the end of the multi-functional lifting hook, and the hook plate is provided on the lifting hook.

[0008] To facilitate the pin connection between the two ends of the connecting rod, the connecting component further includes a lifting rod, and the two ends of the lifting rod are respectively rotatably connected to the lifting guide rod and the lifting multi-functional hook.

[0009] To improve the workpiece gripping effect, preferably, the limiting component includes a support plate, which is fixedly connected to the hook plate, and a limiting block is fixedly connected to the support plate.

[0010] To enable the lifting and transporting function of the lifting guide rod, preferably, a lifting ring is fixedly connected to the top of the lifting guide rod.

[0011] In order to complete the workpiece gripping action, the top of the lifting guide plate is further provided with a lifting guide sleeve, which is sleeved and connected to the lifting guide rod, and the inner wall of the lifting guide sleeve is in contact with the outer wall of the lifting guide rod.

[0012] Compared with the prior art, the present invention provides a workpiece lifting and hoisting tool, which has the following beneficial effects:

[0013] 1. The lifting device for this workpiece can flexibly adjust the installation positions of the three lifting blocks and the three connecting holes at the lower end of the lifting guide rod according to the shape characteristics of the workpiece, so as to ensure that the lifting device maintains the stability of three-point positioning during the gripping process, so as to achieve reliable gripping of workpieces with different shape and structural characteristics.

[0014] 2. The lifting tool for this workpiece utilizes the principle that the heavier the workpiece, the greater the gripping force generated by the three lifting claws, resulting in a more secure grip. This ensures stable gripping during lifting and handling, preventing loose or detached claws, improving safety and efficiency, saving time and effort, enhancing production safety, and guaranteeing the safety of the company and on-site operators during construction.

[0015] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model can keep the lifting claws stable during hoisting and handling, prevent the phenomenon of loose or detached lifting claws, improve safety and efficiency during work, save time and effort, improve production safety, and ensure the safety of enterprises and on-site operators during construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the isometric structure of a workpiece hoisting tool proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the workpiece lifting and hoisting device according to the present invention, showing the workpiece gripping state.

[0018] Figure 3 This is a schematic diagram of the structure of a workpiece hoisting tool in the open state according to the present invention;

[0019] Figure 4 This utility model proposes a workpiece lifting and hoisting tool. Figure 1 A schematic diagram of the structure of part A.

[0020] In the diagram: 1. Lifting ring; 2. Lifting guide rod; 3. Lifting guide sleeve; 4. Lifting guide plate; 5. Lifting block; 6. Multi-functional hook for lifting; 7. Lifting connecting rod; 8. Limit block; 9. Support plate; 10. Lifting hook; 11. Hook plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 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.

[0023] Example:

[0024] Reference Figures 1-4 A workpiece lifting device includes a lifting guide rod 2, and a lifting ring 1 is provided at the top of the lifting guide rod 2 for connecting the lifting guide rod 2 so that the lifting guide rod 2 can be moved conveniently. A lifting guide plate 4 is also slidably connected to the lifting guide rod 2, and a lifting guide sleeve 3 is provided at the top of the lifting guide plate 4. The lifting guide sleeve 3 is sleeved and connected to the lifting guide rod 2, and the inner wall of the lifting guide sleeve 3 is in contact with the outer wall of the lifting guide rod 2, so that the lifting guide plate 4 can reciprocate along the lifting guide rod 2.

[0025] A connection point is provided on the edge of the spreader guide plate 4. A first connecting part is rotatably provided on the connection point. A connecting hole is provided at the lower end of the spreader guide rod 2. The first connecting part is connected to the connecting hole through a connector. The connecting part includes a spreader multi-functional hook 6 and a spreader hook 10. A spreader lifting block 5 is provided on the connection point. One end of the spreader multi-functional hook 6 is rotatably connected to the spreader lifting block 5. The spreader hook 10 is fixedly connected to the end of the spreader multi-functional hook 6. Thus, the spreader multi-functional hook 6 and the spreader hook 10 are connected to the connecting hole through a connector.

[0026] In addition, a second connecting part is provided at the end of the first connecting part, and a hook plate 11 is provided on the second connecting part. A limit component is provided on the outer wall of the hook plate 11, and the hook plate 11 is provided on the lifting hook 10. The connecting part includes the lifting rod 7, and the two ends of the lifting rod 7 are respectively rotatably connected to the lifting guide rod 2 and the lifting multi-functional hook 6. A sharp block is also provided on the hook plate 11 to improve the gripping stability of the device.

[0027] The working principle of this device in both grasping and stationary states is as follows:

[0028] First: By connecting the lifting ring 1 to the lifting equipment, and then connecting the lifting guide rod 2 to the lifting rod 7, the lifting rod 7 is connected to the multi-functional lifting hook 6 and the lifting hook 10. The multi-functional lifting hook 6 and the two lifting hooks 10 are arranged in a circular pattern, thus achieving three-point stability. After the multi-functional lifting hook 6 and the two lifting hooks 10 grab the workpiece, under the action of the workpiece's gravity, the lifting guide sleeve 3 slides axially relative to the lifting guide rod 2, completing the workpiece grabbing action. The limiting mechanism can assist in completing the workpiece grabbing, making its working process stable and reliable. The limiting component includes a support plate 9, which is fixedly connected to the hook plate 11, and a limiting block 8 is fixedly connected to the support plate 9. The limiting block 8 and the support plate 9 are used together and assembled on the hook plate 11, and are fastened by bolts.

[0029] The two limiting blocks 8 mentioned above can be assembled on the support plate 9 at a certain angle, and the support plate 9 is assembled on the hook plate 11. Their installation angle and position have been adjusted according to the shape and structural characteristics of the large steering knuckle being gripped, making the workpiece more stable after gripping. For gripping other types of irregular or heavy workpieces, it is only necessary to appropriately adjust the number, installation angle and position of the limiting blocks 8 and support plates 9 to meet the gripping requirements.

[0030] Second: The lifting ring 1 is connected to the lifting equipment to realize the lifting and handling function; the lifting ring 1 is connected to the lifting guide rod 2 at the bottom, and the lifting guide rod 2 passes through the lifting guide sleeve 3 and the lifting guide plate 4 to connect with the lifting rod 7; the lifting guide sleeve 3 is embedded in the groove of the lifting guide plate 4 and is fastened by bolts;

[0031] To maintain the stability of three-point positioning during the grasping process, three connecting holes are arranged on the lower circumference of the lifting guide rod 2, which are respectively connected to the three lifting rods 7 by pins. The other end of the lifting rod 7 is respectively connected to the lifting multi-functional hook 6 and the lifting hook 10 by pins. The lifting multi-functional hook 6 and the two lifting hooks 10 are respectively connected to the lifting blocks 5 by pins. The three lifting blocks 5 are respectively embedded in the three groove holes distributed on the circumference of the lifting guide plate 4 and are fastened by bolts.

[0032] like Figure 1 As shown, the multi-functional hook 6 and the two hooks 10 of the lifting device are distributed in a circle. The installation positions of the three lifting blocks 5 and the three connecting holes at the lower end of the lifting guide rod 2 can be flexibly adjusted according to the shape characteristics of the workpiece, so as to ensure that the lifting device maintains the stability of three-point positioning during the gripping process, so as to achieve reliable gripping of workpieces with different shape and structural characteristics.

[0033] like Figure 2As shown, after the device grabs the workpiece, since the lifting ring 1 is connected to the lifting equipment, the entire lifting device and the workpiece are suspended in the air together. Under the action of the workpiece's own weight, utilizing the hook-shaped structure characteristics of the multi-functional hook 6 and the two hooks 10, the heavier the workpiece, the greater the gripping force generated by the three claws, and the more firmly the workpiece is gripped. Furthermore, the hook-shaped structure of the multi-functional hook 6 and the two hooks 10 is based on the principle of gravity self-locking. Combining the lifting point of the lifting device, the direction of force transmission in the vertical direction during the lifting process and the possible changes in the direction of force transmission are analyzed. With the principle of safety and stability in the gripping process, a reasonable hook-shaped structure of the multi-functional hook 6 and the two hooks 10 is designed to ensure stable gripping of the claws during the lifting and handling process, prevent the phenomenon of loose or detached claws, improve safety and efficiency during work, save time and labor, improve production safety, and ensure the safety of the enterprise and on-site operators during construction.

[0034] like Figure 3 As shown, when the device is opened, simply move the multi-functional lifting device downwards to contact the ground or other containers while it is in the hoisting state, then grab one of the lifting hooks 10 and pull it outwards gently. The lifting guide plate 4 and the lifting guide sleeve 3 will slide upwards along the lifting guide rod 2. Under the action of the multi-link, the lifting device can be easily opened. The whole process is easy, simple, safe and easy to operate.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A workpiece lifting device, comprising a lifting guide rod (2), characterized in that, Also includes: The lifting guide plate (4) is slidably connected to the lifting guide rod (2). The edge of the lifting guide plate (4) is provided with a connection point, and a first connecting part is rotatably provided on the connection point. The lower end of the lifting guide rod (2) is provided with a connecting hole, and the first connecting part is connected to the connecting hole through a connector. A second connecting part is provided at the end of the first connecting part, and a hook plate (11) is provided on the second connecting part. A limit component is provided on the outer wall of the hook plate (11).

2. The workpiece lifting and hoisting device according to claim 1, characterized in that, The connecting part includes a multi-functional hook (6) and a hook (10). A lifting block (5) is provided at the connecting point. One end of the multi-functional hook (6) is rotatably connected to the lifting block (5), and the hook (10) is fixedly connected to the end of the multi-functional hook (6). A hook plate (11) is provided on the hook (10).

3. The workpiece lifting and hoisting device according to claim 2, characterized in that, The connector includes a lifting rod (7), and the two ends of the lifting rod (7) are rotatably connected to the lifting guide rod (2) and the lifting multi-functional hook (6), respectively.

4. The workpiece lifting and hoisting device according to claim 3, characterized in that, The limiting component includes a tray (9), which is fixedly connected to a hook plate (11), and a limiting block (8) is fixedly connected to the tray (9).

5. The workpiece lifting and hoisting device according to claim 1, characterized in that, The top of the lifting guide rod (2) is fixedly connected to a lifting ring (1).

6. The workpiece lifting and hoisting device according to claim 1, characterized in that, The top of the lifting guide plate (4) is provided with a lifting guide sleeve (3), which is sleeved and connected to the lifting guide rod (2), and the inner wall of the lifting guide sleeve (3) is in contact with the outer wall of the lifting guide rod (2).

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