A pre-opening and closing lifting device for stacked boards

Abstract

This utility model relates to the field of sheet metal processing technology, and in particular to a pre-opening and closing lifting device for stacked sheet metal, comprising a main frame, a lifting assembly fixedly connected within the main frame, a connecting rod assembly movably sleeved at the lower end of the lifting assembly, a left pressure assembly fixedly sleeved on the left side of the connecting rod assembly, and a right pressure assembly fixedly sleeved on the right side of the connecting rod assembly. When the lifting equipment lifts the lifting frame, the frame body and the second bearing drive the second U-shaped frame to rotate, and the crossbar pulls the movable leaf of the connecting rod assembly, causing the fixed rod to drive the sleeve rod to slide within the sleeve, thereby driving the left and right pressure assemblies to close and clamp the sheet metal, achieving automatic locking. During lifting, the position can be adjusted via the handle to complete the lifting. The overall structure does not require frequent manual adjustment of the positioning, and the automatic locking of the sheet metal prevents slippage, improving the efficiency and safety of stacked sheet metal lifting.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing technology, and in particular to a pre-opening and closing lifting device for stacking sheet metal. Background Technology

[0002] In the field of board processing, the handling of stacked boards is a high-frequency operation that requires the use of lifting equipment to achieve efficient transfer. Currently, the commonly used lifting equipment for stacked boards in the industry is either a fixed hook type or a manually adjustable type: the fixed hook type lifting equipment lifts the boards by hooking the edge of the stack or a preset lifting point, while the manually adjustable type lifting equipment requires manual operation of bolts and buckles to adjust the clamping width to adapt to different specifications of stacked materials. Traditional lifting devices of this type have the following problems in practical applications: they lack pre-opening and closing functions and automatic locking mechanisms. Before lifting, the position of the lifting device needs to be manually adjusted repeatedly to align with the stack of boards. This operation is cumbersome and has low positioning accuracy, which not only reduces work efficiency but also easily leads to misalignment between the lifting device and the boards due to improper manual intervention, causing safety hazards such as boards slipping or tilting. Therefore, we have introduced a pre-opening and closing jacking lifting device for stacked boards. Utility Model Content

[0003] The main objective of this invention is to provide a pre-opening and closing lifting device for stacked boards, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pre-opening and closing lifting device for stacked boards includes a main frame, characterized in that: a lifting assembly is fixedly connected inside the main frame, a connecting rod assembly is movably sleeved at the lower end of the lifting assembly, a left pressure assembly is fixedly sleeved on the left side of the connecting rod assembly, and a right pressure assembly is fixedly sleeved on the right side of the connecting rod assembly, the left pressure assembly and the right pressure assembly have the same structure and are symmetrically distributed from left to right.

[0005] Preferably, the linkage assembly includes two fixed rods. A connecting plate is fixedly connected to the middle of the upper ends of the two fixed rods. A sleeve rod is fixedly connected to the front and rear of the upper end of the connecting plate. Several reinforcing rods are fixedly connected to the lower ends of the two fixed rods. A first bearing is movably connected to the front and rear ends of the two fixed rods. Movable flaps are fixedly sleeved on the outer surfaces of the four first bearings. A through-hole is opened at the front end of each of the four movable flaps.

[0006] By adopting the above technical solution: the sleeve rod and the lifting assembly cooperate to achieve up and down sliding, and the first bearing allows the movable page to rotate flexibly, ensuring the smooth transmission of the pre-opening and clamping actions of the lifting device.

[0007] Preferably, the main frame includes a frame body, with movable slots at the four corners of the lower end of the frame body, and two shaft holes at the front and rear ends of the frame body.

[0008] By adopting the above technical solution, the movable slots at the four corners of the lower end provide space for the left and right pressure components to move, making it easier for the left and right pressure components to open and close during hoisting.

[0009] Preferably, the four shaft holes pass through the corresponding movable slots and extend to the front inner wall and rear inner wall of the frame, respectively.

[0010] Preferably, the hoisting assembly includes a hanger, with fixed plates fixedly connected to both the front and rear ends of the hanger, sleeves fixedly connected to the middle of the outer sides of the two fixed plates, the lower end of the hanger being fixedly connected to the upper end of the frame, and the left and right ends of the two fixed plates being fixedly connected to the inner wall of the frame.

[0011] By adopting the above technical solution, the jack can be connected to external lifting equipment to provide a lifting fulcrum for the entire lifting device.

[0012] Preferably, the two sleeve rods are respectively movably sleeved in the corresponding sleeves, and the plurality of reinforcing rods are distributed in pairs at equal distances.

[0013] By adopting the above technical solution, the sleeve rod and the sleeve are movably connected, so that the connecting rod assembly can slide up and down along the sleeve, providing a transmission path for the opening and closing actions of the left and right pressing assemblies.

[0014] Preferably, the right pressing assembly includes a first U-shaped frame, a second U-shaped frame is fixedly connected to the inner wall of the first U-shaped frame, a connecting rod is fixedly connected to the front inner wall and the rear inner wall of the second U-shaped frame, a handle is fixedly connected to the right end of the second U-shaped frame and the right end of the connecting rod, a crossbar is fixedly connected to the front inner wall and the rear inner wall of the second U-shaped frame above the connecting rod, and a second bearing is inserted and connected to both the front end and the rear end of the second U-shaped frame.

[0015] By adopting the above technical solution, the handle makes it easier for workers to adjust the position of the plate during hoisting, thus improving the ease of operation.

[0016] Preferably, the upper part of the second U-shaped frame is movably sleeved in the corresponding movable groove, the inner sides of the two second bearings are respectively movably sleeved in the corresponding shaft holes, and the crossbar is fixedly sleeved in the corresponding fixed hole.

[0017] By adopting the above technical solution: the second bearing cooperates with the shaft hole to provide a stable rotation fulcrum for the left and right pressure components, ensuring that the left and right pressure components rotate around the shaft hole; The crossbar is fixedly connected to the fixing hole to realize the transmission connection between the connecting rod assembly and the left and right pressure assembly. This allows the sliding of the connecting rod assembly to synchronously drive the opening and closing of the left and right pressure assembly, ensuring the realization of the pre-opening and automatic locking functions of the lifting device.

[0018] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the lifting frame of the hoisting component is connected to an external lifting device. In its natural state, the left and right pressure components are in a pre-opening state, which facilitates the quick placement of stacked boards. When the lifting device raises the lifting frame, the second U-shaped frame is rotated through the frame body and the second bearing. The crossbar pulls the movable page of the connecting rod assembly, causing the fixed rod to slide the sleeve rod inside the sleeve, thereby driving the left and right pressure components to close and clamp the boards, achieving automatic locking. During hoisting, the position can be adjusted by the handle to complete the hoisting. The overall structure does not require frequent manual adjustment of the positioning and automatically locks the boards to prevent them from slipping, improving the efficiency and safety of hoisting stacked boards. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a pre-opening and closing lifting device for stacked boards according to the present invention; Figure 2 This is a schematic diagram of the main frame of a pre-opening and closing lifting device for stacked boards according to the present invention; Figure 3 This is a structural schematic diagram of a lifting assembly for a pre-opening and closing type lifting device for stacked boards according to the present invention; Figure 4 This is a schematic diagram of the connecting rod assembly of a pre-opening and closing lifting device for stacked boards according to the present invention. Figure 5 This utility model relates to a pre-opening and closing lifting device for stacked boards. Figure 4 Enlarged view of the structure at point A in the image; Figure 6 This is a schematic diagram of the right pressing component of a pre-opening and closing lifting device for stacking boards according to the present invention.

[0020] In the diagram: 1. Main frame; 2. Lifting assembly; 3. Connecting rod assembly; 4. Left pressure assembly; 5. Right pressure assembly; 11. Frame body; 12. Movable groove; 13. Shaft hole; 21. Hanger; 22. Fixing plate; 23. Sleeve; 31. Fixing rod; 32. Connecting plate; 33. Sleeve rod; 34. Reinforcing rod; 35. First bearing; 36. Movable flap; 37. Fixing hole; 51. First U-shaped frame; 52. Second U-shaped frame; 53. Connecting rod; 54. Handle; 55. Crossbar; 56. Second bearing. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-6 This utility model provides a technical solution: A pre-opening and closing lifting device for stacked boards includes a main frame 1, characterized in that: a lifting assembly 2 is fixedly connected inside the main frame 1, a connecting rod assembly 3 is movably sleeved at the lower end of the lifting assembly 2, a left pressure assembly 4 is fixedly sleeved on the left side of the connecting rod assembly 3, and a right pressure assembly 5 is fixedly sleeved on the right side of the connecting rod assembly 3, the left pressure assembly 4 and the right pressure assembly 5 have the same structure and are symmetrically distributed from left to right.

[0025] In this embodiment, the linkage assembly 3 includes two fixed rods 31. A connecting plate 32 is fixedly connected to the middle of the upper ends of both fixed rods 31. Sleeve rods 33 are fixedly connected to the front and rear ends of the upper ends of the connecting plate 32. Several reinforcing rods 34 are fixedly connected to the lower ends of both fixed rods 31. First bearings 35 are movably connected to the front and rear ends of both fixed rods 31. Movable flaps 36 are fixedly sleeved on the outer surfaces of the four first bearings 35. The front end of each component has a through-hole 37; the main frame 1 includes a frame body 11, with movable slots 12 at the four corners of the lower end of the frame body 11, and two shaft holes 13 at both the front and rear ends of the frame body 11; the four shaft holes 13 pass through the corresponding movable slots 12 and extend to the front and rear inner walls of the frame body 11 respectively; the hoisting assembly 2 includes a hanger 21, with fixed plates 22 fixedly connected to the front and rear ends of the hanger 21, and sleeves 23 fixedly connected to the middle of the outer sides of the two fixed plates 22. The lower end of frame 21 is fixedly connected to the upper end of frame body 11, and the left and right ends of the two fixing plates 22 are fixedly connected to the inner wall surface of frame body 11; two sleeve rods 33 are respectively movably sleeved in the corresponding sleeves 23, and several reinforcing rods 34 are distributed in pairs at equal distances; the right pressing assembly 5 includes a first U-shaped frame 51, and a second U-shaped frame 52 is fixedly connected to the inner wall surface of the first U-shaped frame 51. The front inner wall surface and the rear inner wall surface of the second U-shaped frame 52 are jointly fixedly connected to a connecting rod 53. The right end of the second frame 52 and the right end of the connecting rod 53 are both fixedly connected to a handle 54. The front inner wall and the rear inner wall of the second frame 52, located above the connecting rod 53, are both fixedly connected to a crossbar 55. The front end and the rear end of the second frame 52 are both connected to second bearings 56. The upper part of the second frame 52 is movably sleeved in the corresponding movable groove 12. The inner sides of the two second bearings 56 are movably sleeved in the corresponding shaft holes 13. The crossbar 55 is fixedly sleeved in the corresponding fixed hole 37.

[0026] It should be noted that this utility model is a pre-opening and closing lifting device for stacked boards. In use, the lifting frame 21 of the lifting assembly 2 is first connected to the external lifting equipment. In its natural state, the left pressing assembly 4 and the right pressing assembly 5 are in a pre-opening and closing state. After the lifting equipment moves the frame 11 of the main frame 1 above the stacked boards, the worker places the stacked boards between the left pressing assembly 4 and the right pressing assembly 5. Then, the lifting equipment lifts the lifting frame 21 upward. The lifting frame 21 drives the frame 11 to rise through the fixing plate 22. The second bearing 56 in the shaft hole 13 of the frame 11 drives the second U-shaped frame. 52 rotates within the movable slot 12. The crossbar 55 on the second U-shaped frame 52 pulls the movable page 36 of the connecting rod assembly 3 through the fixing hole 37. The movable page 36 rotates around the first bearing 35 and drives the two fixed rods 31 to move. The connecting plate 32 at the upper end of the fixed rod 31 drives the sleeve rod 33 to slide within the sleeve 23, thereby driving the left pressing assembly 4 and the right pressing assembly 5 to close inward. The first U-shaped frame 51 and the second U-shaped frame 52 clamp the two sides of the stacked plates, achieving automatic locking. Then, the handle 54 is locked. During the hoisting process, the worker can adjust the position of the plates through the handle 54 to complete the lifting and hoisting operation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pre-opening and closing lifting device for stacked boards, comprising a main frame (1), characterized in that: The main frame (1) is fixedly connected to a hoisting assembly (2). The lower end of the hoisting assembly (2) is movably sleeved with a connecting rod assembly (3). The left part of the connecting rod assembly (3) is fixedly sleeved with a left pressure assembly (4), and the right part of the connecting rod assembly (3) is fixedly sleeved with a right pressure assembly (5). The left pressure assembly (4) and the right pressure assembly (5) have the same structure and are symmetrically distributed from left to right. The linkage assembly (3) includes a fixed rod (31), and there are two fixed rods (31). The upper middle part of the two fixed rods (31) is fixedly connected to a connecting plate (32). The upper front and upper rear parts of the connecting plate (32) are fixedly connected to a sleeve rod (33). The lower ends of the two fixed rods (31) are fixedly connected to several reinforcing rods (34). The front and rear ends of the two fixed rods (31) are movably connected to a first bearing (35). The outer surfaces of the four first bearings (35) are fixedly fitted with movable flaps (36). The front ends of the four movable flaps (36) are all opened with a through fixed hole (37).

2. The pre-opening and closing lifting device for stacked boards according to claim 1, characterized in that: The main frame (1) includes a frame (11), and each of the four corners of the lower end of the frame (11) has a movable groove (12), and each of the front and rear ends of the frame (11) has two shaft holes (13).

3. A pre-opening and closing lifting device for stacked boards according to claim 2, characterized in that: The four shaft holes (13) pass through the corresponding movable slots (12) and extend to the front inner wall and rear inner wall of the frame (11).

4. A pre-opening and closing lifting device for stacked boards according to claim 2, characterized in that: The hoisting assembly (2) includes a hanger (21), with fixed plates (22) fixedly connected to the front and rear ends of the hanger (21). Sleeves (23) are fixedly connected to the middle of the outer side of the two fixed plates (22). The lower end of the hanger (21) is fixedly connected to the upper end of the frame (11), and the left and right ends of the two fixed plates (22) are fixedly connected to the inner wall of the frame (11).

5. A pre-opening and closing lifting device for stacked boards according to claim 1, characterized in that: The two sleeve rods (33) are respectively movably sleeved in the corresponding sleeve (23), and the several reinforcing rods (34) are distributed in pairs at equal distances.

6. A pre-opening and closing lifting device for stacked boards according to claim 2, characterized in that: The right pressing assembly (5) includes a first frame (51), a second frame (52) is fixedly connected to the inner wall of the first frame (51), a connecting rod (53) is fixedly connected to the front inner wall and the rear inner wall of the second frame (52), a handle (54) is fixedly connected to the right end of the second frame (52) and the right end of the connecting rod (53), a crossbar (55) is fixedly connected to the front inner wall and the rear inner wall of the second frame (52) above the connecting rod (53), and a second bearing (56) is inserted and connected to the front end and the rear end of the second frame (52).

7. A pre-opening and closing lifting device for stacked boards according to claim 6, characterized in that: The upper part of the second frame (52) is movably sleeved in the corresponding movable groove (12), the inner sides of the two second bearings (56) are movably sleeved in the corresponding shaft holes (13), and the crossbar (55) is fixedly sleeved in the corresponding fixed hole (37).

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