A lifting fixture for a container panel

Abstract

The present application relates to a lifting fixture for container panels, belonging to the technical field of lifting equipment. It includes a top rod for connecting with a traveling crane, two side rods slidably connected to the top rod, and a main hydraulic cylinder for driving the side rods to slide on the top rod. The top rod and the two side rods form a clamping cavity for clamping multiple panels. The main hydraulic cylinder is connected to the top rod, and the piston rod of the main hydraulic cylinder is connected to the side rod. A plurality of clamping members are arranged on the side of the side rod close to the other side rod, and the plurality of clamping members are arranged at intervals along the length direction of the side rod. Each clamping member includes a chuck for clamping the panel and a sub-hydraulic cylinder for driving the chuck to move. The sub-hydraulic cylinder is fixedly connected to the side rod, and the chuck is fixedly connected to the piston rod of the sub-hydraulic cylinder. The lifting fixture can clamp multiple panels at one time, and the traveling crane can transport multiple panels at one time, improving the working efficiency of the lifting fixture and the transportation efficiency of the traveling crane.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and particularly relates to a lifting fixture for container panels. Background Art

[0002] A container is assembled by splicing multiple panels. When manufacturing a container, the panels need to be lifted to the assembly station for splicing at the assembly station.

[0003] In the related art, generally, a panel is lifted by a traveling crane. The traveling crane is connected with a lifting tool, and the lifting tool is connected with one panel, so that the traveling crane drives the panel to move; there are multiple assembly stations, and the multiple assembly stations are arranged at intervals along the moving direction of the traveling crane.

[0004] The panels are stacked in the warehouse from bottom to top. When assembling the panels, first connect the lifting tool with the panel, and then drive the lifting tool to move through the traveling crane. The lifting tool drives the panel to move, so that the panel moves to the assembly station.

[0005] In view of the above related art, the inventor believes that when transporting panels to multiple assembly stations through the above-mentioned lifting tool, it is necessary to transport back and forth multiple times, and the working efficiency is relatively low. Summary of the Invention

[0006] In order to improve the working efficiency of the lifting fixture, the present application provides a lifting fixture for container panels.

[0007] A lifting fixture for container panels provided by the present application adopts the following technical solutions:

[0008] A lifting fixture for container panels includes a top rod for connecting with a traveling crane, two side rods slidably connected to the top rod, and a main hydraulic cylinder for driving the side rods to slide on the top rod. The top rod and the two side rods form a clamping cavity for clamping multiple panels. The main hydraulic cylinder is connected to the top rod, and the piston rod of the main hydraulic cylinder is connected to the side rod;

[0009] On the side of the side rod close to the other side rod, a plurality of clamping members are provided. The plurality of clamping members are arranged at intervals along the length direction of the side rod. Each clamping member includes a chuck for clamping the panel and a sub-hydraulic cylinder for driving the chuck to move. The sub-hydraulic cylinder is fixedly connected to the side rod, and the chuck is fixedly connected to the piston rod of the sub-hydraulic cylinder.

[0010] By adopting the above technical solution, the ejector rod is pre-connected to the overhead crane. When the lifting fixture clamps the box board, the overhead crane lowers the lifting fixture, so that the ejector rod is located above the box board, and the two side rods are respectively located on both sides of the box board. At this time, the box board is located in the clamping cavity, and multiple clamping members correspond to multiple box boards one by one. Then, the main hydraulic cylinder is started, and the main hydraulic cylinder drives the two side rods to approach each other. Next, the auxiliary hydraulic cylinder is started, and the auxiliary hydraulic cylinder drives the chuck to move until the chuck is embedded in the groove of the box board, so that the lifting fixture can clamp multiple box boards at one time, and the overhead crane can transport multiple box boards at one time, improving the working efficiency of the lifting fixture and the transportation efficiency of the overhead crane.

[0011] Among them, the main hydraulic cylinder is mainly used to adjust the distance between the two side rods, so that the lifting fixture can adapt to box boards of different sizes. The auxiliary hydraulic cylinder is mainly used to clamp the box board, so that the box board is not easy to fall off the lifting fixture.

[0012] In addition, when the overhead crane moves the box board to the assembly station, the auxiliary hydraulic cylinder at the bottom is started, and the chuck at the bottom withdraws from the groove of the box board, so that the box board at the bottom is loosened, that is, one box board is unloaded. If only one box board is needed at this assembly station, the overhead crane can still transport the remaining box boards to the next assembly station; since each box board is separately clamped by the clamping member, the lifting fixture can transport box boards for multiple assembly stations.

[0013] Optionally, pressing members are arranged on a set of opposite side surfaces of the chuck. The pressing member includes a pressing block connected to the chuck and a positioning piece for pressing the box board. The positioning piece is connected to the pressing block, and the pressing block, the positioning piece and the chuck form a slot.

[0014] By adopting the above technical solution, when the chuck is embedded in the groove of the box board, the side plate of the box board is inserted into the slot, and the side plate is not easily deformed by the abutment of the pressing block against the side plate and the pressing of the positioning piece against the side plate.

[0015] When the lifting fixture drives the box board to move, on the one hand, the chuck is embedded in the groove of the box board, and the box board is clamped by the two chucks. On the other hand, the box board is lifted by the chuck. When the chuck lifts the box board, the chuck acts on the side plate. Since the side plate is relatively thin, when the force exerted by the chuck on the side plate is too large, the side plate is easily bent, resulting in deformation of the side plate. By inserting the side plate into the slot, the pressing member abuts against the side plate, and the positioning piece presses on the side of the side plate away from the chuck, making the side plate not easily bend and deform.

[0016] Optionally, the chuck is provided with a sliding groove, a sliding block is arranged in the sliding groove of the chuck, the sliding block slides in the sliding groove along the moving direction of the chuck, and the pressing block is connected to the sliding block; an elastic member for pushing the sliding block in a direction away from the side rod is arranged in the sliding groove of the chuck.

[0017] By adopting the above technical solution, the sliding block slides in the sliding groove, and the pressing block is connected to the sliding block, enabling the pressing block to move on the chuck, so that the position of the pressing block can be changed and the size of the slot can be adjusted, thus adapting to side plates of different lengths. In addition, by pushing the sliding block with an elastic member, the sliding block always has a tendency to move away from the side rod. When the side plate is inserted into the slot, the pressing block abuts against the side plate, and the positioning piece covers the largest area of the side plate.

[0018] Optionally, the elastic member includes an abutting block for abutting against the pressing block and a compression spring for pushing the abutting block to move towards the sliding block. The abutting block slides in the sliding groove. One end of the compression spring is fixedly connected to the groove wall of the sliding groove, and the other end is fixedly connected to the abutting block.

[0019] By adopting the above technical solution, the abutting block has a tendency to always move towards the sliding block under the action of the compression spring, so that the abutting block always abuts against the sliding block, and the abutting block pushes the sliding block to move in the sliding groove.

[0020] Optionally, the end of the positioning piece protrudes from one end of the chuck away from the side rod.

[0021] By adopting the above technical solution, the end of the positioning piece protrudes from the end of the chuck, making the positioning piece larger, thereby increasing the area of the positioning piece covering the side plate. In addition, when the clamping member clamps the box board, the chuck is embedded in the groove of the box board. Since the side plate of the box board is relatively thin, if there is a deviation when the auxiliary hydraulic cylinder drives the chuck to move, the chuck may abut against the side plate of the box board, easily squeezing and deforming the side plate. After the end of the positioning piece protrudes from the chuck, before the chuck is embedded in the groove of the box board, the two positioning pieces first clamp the box board to pre-position the box board, facilitating the alignment of the chuck with the groove.

[0022] Optionally, a rotating shaft is rotatably inserted through the sliding block, the pressing block is fixedly connected to the rotating shaft, and a torsion spring for always flipping the positioning piece towards the direction of covering the box board is sleeved on the rotating shaft.

[0023] By adopting the above technical solution, the pressing block is connected to the rotating shaft, and the rotating shaft is rotatably inserted through the sliding block, enabling the pressing block to rotate around the rotating shaft on the sliding block, so that the positioning piece can rotate on the chuck, and the distance between the positioning piece and the chuck can be changed. When the clamping member clamps the box board, there is a process of alignment and adjustment between the chuck and the box board. When the chuck is embedded in the groove, the positioning piece may collide with the side plate of the box board. At this time, the positioning piece rotates on the chuck, so that the positioning piece does not exert too much force on the side plate, and the side plate is not easily deformed. Then, adjust the position of the box board or the chuck so that the side plate is inserted into the slot and the positioning piece is horizontal, and then embed the chuck into the groove.

[0024] Optionally, the pressing block has a rotating arc surface that abuts against the abutting block; the pressing block is vertically connected to the positioning piece.

[0025] By adopting the above technical solution, since the abutting block always abuts against the sliding block, when the positioning piece rotates, the pressing block will also rotate. At this time, the rotating arc surface abuts against the abutting block, making the rotation of the pressing block smoother. In addition, after the side plate is inserted into the slot, the side plate abuts against the pressing block. Since the pressing block is perpendicular to the positioning piece, it is not easy for the positioning piece to rotate on the chuck after the side plate abuts against the pressing block, and thus the positioning piece covers the side plate more stably.

[0026] Optionally, the main hydraulic cylinder is rotatably connected to the ejector rod, the side rod is slidably connected with a pushing block that slides along the arrangement direction of a plurality of clamping members, and the piston rod of the main hydraulic cylinder is rotatably connected to the pushing block.

[0027] By adopting the above technical solution, after the main hydraulic cylinder is started, the main hydraulic cylinder drives the side rod to move on the ejector rod. While the piston rod of the main hydraulic cylinder extends, the pushing block slides on the side rod, making the main hydraulic cylinder gradually tilt, reducing the extension amount of the main hydraulic cylinder in the sliding direction of the side rod, and slowing down the moving speed of the side rod on the ejector rod, which is convenient for the clamping members to correspond to the box board.

[0028] Optionally, the side rod is provided with a pushing groove for the pushing block to slide, and a tension spring for moving the pushing block towards the middle of the side rod is arranged in the pushing groove. One end of the tension spring is fixedly connected to the groove wall of the pushing groove, and the other end is fixedly connected to the pushing block.

[0029] By adopting the above technical solution, under the action of the tension spring, the pushing block moves towards the middle of the side rod when the main hydraulic cylinder extends, making the movement of the pushing block smooth; at the same time, when the main hydraulic cylinder stops extending, the force of the main hydraulic cylinder mainly acts on the pushing block. At this time, the pushing block is located in the middle of the side rod or near the middle of the side rod, making the force of the main hydraulic cylinder act on the middle position of the side rod, so that the two side rods clamp the box board more stably.

[0030] Optionally, a guiding rod is arranged on a set of opposite side surfaces of the pushing block, and a guiding groove for the guiding rod to slide is formed on a set of opposite groove walls of the pushing groove, and the guiding rod slidably penetrates through the guiding groove.

[0031] By adopting the above technical solution, the pushing block is not easy to slide out of the pushing groove through the sliding of the guiding rod in the guiding groove.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The hoisting fixture can hold multiple box boards at a time, and the overhead traveling crane can transport multiple box boards at a time, improving the working efficiency of the hoisting fixture and the transportation efficiency of the overhead traveling crane.

[0034] 2. By inserting the side plate into the slot, the pressing member abuts against the side plate, and the positioning piece presses on the side of the side plate away from the chuck, making it difficult for the side plate to bend and deform.

[0035] 3. The pushing block is located in the middle of the side rod or near the middle of the side rod, so that the force of the main hydraulic cylinder acts on the middle position of the side rod, making the two side rods hold the box board more stably. Description of the Drawings

[0036] Figure 1 It is a schematic diagram of the overall structure of the box board of the present application document.

[0037] Figure 2 It is a schematic diagram of the structure of the cross bar of the present application document.

[0038] Figure 3 It is a schematic diagram of the state after the box board of the embodiment of the present application is connected to the hoisting fixture.

[0039] Figure 4 It is a schematic diagram of the overall structure of the hoisting fixture of the embodiment of the present application.

[0040] Figure 5 It is a schematic diagram of the structure of the hoisting fixture of the embodiment of the present application from another perspective.

[0041] Figure 6 It is a schematic diagram of the structure after the main hydraulic cylinder is connected to the side rod of the embodiment of the present application.

[0042] Figure 7 It is an exploded view of the pushing block and the side rod of the embodiment of the present application.

[0043] Figure 8 It is a schematic diagram of the clamping member on the side rod of the embodiment of the present application.

[0044] Figure 9 It is a schematic diagram of the overall structure of the clamping member of the embodiment of the present application.

[0045] Figure 10 It is a schematic diagram of the structure of the chuck of the embodiment of the present application.

[0046] Figure 11 It is a schematic diagram of the structure of the chuck of the embodiment of the present application from another perspective.

[0047] Figure 12 It is a schematic diagram of the torsion spring on the sliding block of the embodiment of the present application.

[0048] Figure 13It is a schematic structural diagram after the pressing member of the embodiment of the present application is turned by a certain angle.

[0049] Explanation of reference numerals: 1, box board; 11, cross bar; 12, connecting rod; 13, vertical board; 14, side board; 15, groove; 2, ejector rod; 21, hook hole; 22, moving groove; 23, clamping cavity; 3, side rod; 31, moving block; 32, pushing groove; 33, inlet; 34, guiding groove; 35, tension spring; 36, pushing block; 361, guiding rod; 4, main hydraulic cylinder; 5, clamping member; 51, auxiliary hydraulic cylinder; 52, chuck; 521, sliding groove; 53, pressing member; 531, pressing block; 532, positioning piece; 533, slot; 534, rotating arc surface; 54, sliding block; 541, rotating shaft; 542, torsion spring; 543, limiting block; 55, elastic member; 551, compression spring; 552, abutting block. Detailed implementation manners

[0050] The following Figures 1 - 13 further elaborates on the present application in detail.

[0051] An embodiment of the present application discloses a lifting fixture for a container box board. The lifting fixture is connected to a traveling crane and is used for lifting the container box board 1.

[0052] Refer to Figure 1 and Figure 2 , the container box board 1 includes two cross bars 11 and a plurality of connecting rods 12. The two cross bars 11 are relatively parallel and spaced apart, and the plurality of connecting rods 12 are all located between the two cross bars 11. Both ends of each connecting rod 12 are fixedly connected to the two cross bars 11 respectively.

[0053] Among them, the cross bar 11 is a C-shaped channel steel; the cross bar 11 includes a vertical board 13 and two side boards 14. The two side boards 14 are integrally connected to the same side of the vertical board 13. The two side boards 14 are parallel and oppositely arranged, and the vertical board 13 and the two side boards 14 form an inwardly concave groove 15.

[0054] Refer to Figure 3 and Figure 4 , the lifting fixture includes an ejector rod 2, two side rods 3 and a main hydraulic cylinder 4. The two side rods 3 are both located below the ejector rod 2, and the two side rods 3 are both slidably connected to the ejector rod 2. The ejector rod 2 and the two side rods 3 form a clamping cavity 23 for clamping a plurality of box boards 1; the main hydraulic cylinder 4 is fixed on the ejector rod 2, and the side rods 3 are driven to slide on the ejector rod 2 through the main hydraulic cylinder 4.

[0055] When the lifting fixture is in use, the box board 1 is located in the clamping cavity 23, and the main hydraulic cylinder 4 drives the side rods 3 to move, so that the two side rods 3 clamp the box board 1, so that the lifting fixture can drive the box board 1 to move.

[0056] Specifically, there is a hook hole 21 above the ejector rod 2. The hook of the traveling crane is hooked at the hook hole 21, so that the traveling crane is connected to the ejector rod 2, and further the traveling crane is connected to the lifting fixture.

[0057] See Figure 5 With Figure 6 , a moving groove 22 is formed on the lower side surface of the ejector rod 2, and the moving groove 22 penetrates through both end faces of the ejector rod 2; the side rod 3 is provided with a moving block 31, and the moving block 31 is slidably inserted into the moving groove 22. By moving the moving block 31 in the moving groove 22, the side rod 3 slides on the ejector rod 2.

[0058] Wherein, in order to prevent the moving block 31 from easily sliding out of the moving groove 22, in this embodiment, the moving block 31 is a T-shaped slider, and the moving groove 22 is a T-shaped sliding groove.

[0059] There are two main hydraulic cylinders 4, and the two main hydraulic cylinders 4 are arranged in one-to-one correspondence with the two side rods 3. The main hydraulic cylinder 4 is located in the moving groove 22, the main hydraulic cylinder 4 is connected to the groove wall of the moving groove 22, and the piston rod of the main hydraulic cylinder 4 is connected to the side rod 3. By driving the two main hydraulic cylinders 4, the two side rods 3 can move relatively or away from each other.

[0060] Each side rod 3 is provided with a plurality of clamping members 5, and the plurality of clamping members 5 are arranged at intervals along the length direction of the side rod 3. The clamping members 5 are located on the side surface of the side rod 3 close to the other side rod 3, and the clamping members 5 of the two side rods 3 are arranged oppositely. When the lifting fixture is in use, one clamping member 5 corresponds to and clamps one box board 1, and the number of the clamping members 5 is set according to the actual situation. In this embodiment, three clamping members 5 are arranged on each side rod 3.

[0061] When the lifting fixture clamps the box board 1, the lifting fixture is lowered by the traveling crane, so that the ejector rod 2 is located above the box board 1, and the two side rods 3 are respectively located on both sides of the box board 1. At this time, the box board 1 is located in the clamping cavity 23, and the box board 1 is corresponded to the clamping members 5. Then the main hydraulic cylinder 4 is started, and the main hydraulic cylinder 4 drives the two side rods 3 to approach each other, so that the clamping members 5 are connected to the box board 1. Finally, the lifting fixture is lifted by the traveling crane, so that the traveling crane drives the box board 1 to move.

[0062] See Figure 6 With Figure 7 , wherein, a long strip-shaped pushing groove 32 is formed on the side surface of the side rod 3 away from the other side rod 3, a pushing block 36 is arranged in the side rod 3 in the pushing groove 32, and the pushing block 36 slides in the pushing groove 32. And the pushing groove 32 is communicated with the side surface of the side rod 3 close to the ejector rod 2, and the notch is the inlet 33, so that the pushing block 36 can slide into the pushing groove 32 from the inlet 33.

[0063] In addition, the main hydraulic cylinder 4 is hinged to the groove wall of the moving groove 22, and the piston rod of the main hydraulic cylinder 4 is hinged to the pushing block 36, so that both ends of the main hydraulic cylinder 4 can rotate.

[0064] To prevent the pushing block 36 from easily slipping out of the pushing groove 32, a guiding rod 361 is integrally provided on a set of opposite side surfaces of the pushing block 36, and a guiding groove 34 for the guiding rod 361 to slide is provided on a set of opposite groove walls of the pushing groove 32. When the pushing block 36 slides in the pushing groove 32, the guiding rod 361 slides in the guiding groove 34.

[0065] In addition, a tension spring 35 is provided on the side rod 3 in the pushing groove 32. One end of the tension spring 35 is fixedly connected to the pushing block 36, and the other end is fixedly connected to the groove wall of the pushing groove 32 away from the inlet 33. Through the action of the tension spring 35, the pushing block 36 always has a tendency to move in the direction away from the inlet 33.

[0066] Before clamping the box board 1, the distance between the two side rods 3 is the farthest, and the main hydraulic cylinder 4 is in a horizontal state; when clamping the box board 1, when the piston rod of the main hydraulic cylinder 4 acts and drives the side rod 3 to move in the direction close to the other side rod 3, the side rod 3 slides in the moving groove 22, and at this time the pushing block 36 moves in the direction away from the inlet 33 driven by the tension spring 35, making the main hydraulic cylinder 4 gradually tilt; when the distance between the two side rods 3 is the closest, the pushing block 36 is located at the middle position of the side rod 3, the pushing block 36 corresponds to the clamping member 5 in the middle, and the force of the main hydraulic cylinder 4 acts on the side rod 3 through the pushing block 36. The force of the main hydraulic cylinder 4 acts on the middle part of the side rod 3, making the two side rods 3 more stable when clamping multiple box boards 1.

[0067] See Figure 8 And Figure 9 , further, each clamping member 5 includes a sub-hydraulic cylinder 51 and a chuck 52. The sub-hydraulic cylinder 51 is fixedly connected to the side rod 3, and the chuck 52 is fixedly connected to the piston rod of the sub-hydraulic cylinder 51, so that the sub-hydraulic cylinder 51 drives the chuck 52 to move in the direction away from the side rod 3. When clamping the box board 1, the chucks 52 on the two side rods 3 move relatively driven by the sub-hydraulic rods, so that the chucks 52 on the two side rods 3 are respectively inserted into the grooves 15 of the two cross bars 11.

[0068] A set of opposite side surfaces of the chuck 52 are both provided with pressing members 53. In this embodiment, the pressing members 53 are located on the upper and lower sides of the chuck 52; each pressing member 53 includes a pressing block 531 and a positioning piece 532. The pressing block 531 is slidably connected to the chuck 52, and the positioning piece 532 is vertically connected to the pressing block 531. The pressing block 531, the positioning piece 532 and the chuck 52 form a slot 533 for the side plate 14 of the cross bar 11 to be inserted into. When the clamping member 5 is connected to the box board 1, the chuck 52 is inserted into the groove 15 of the cross bar 11, and the two side plates 14 of the cross bar 11 are respectively inserted into the two slots 533, making the connection between the chuck 52 and the box board 1 stable, and at this time the positioning piece 532 covers the side plate 14. Through the action of the positioning piece 532, the side plate 14 is not easily deformed.

[0069] The positioning piece 532 protrudes from one end of the chuck 52 away from the auxiliary hydraulic cylinder 51. Before the clamping piece 5 is connected to the box board 1, the box board 1 is located between the two side rods 3. At this time, both positioning pieces 532 protrude from the chuck 52. Move the box board 1 between the two positioning pieces 532, and then start the auxiliary hydraulic cylinder 51. The auxiliary hydraulic cylinder 51 drives the chuck 52 to move. The chuck 52 is embedded in the groove 15 of the cross bar 11. Through the limitation of the two positioning pieces 532, the chuck 52 corresponds to the groove 15, so that the chuck 52 can be more accurately embedded in the groove 15.

[0070] See Figure 10 And Figure 11 , both the upper and lower sides of the chuck 52 are provided with sliding grooves 521. The length direction of the sliding grooves 521 is the same as the telescopic direction of the auxiliary hydraulic cylinder 51. A sliding block 54 is arranged in the chuck 52 in the sliding grooves 521. The sliding block 54 slides in the sliding grooves 521, and the pressing block 531 is connected to the sliding block 54, so that the sliding block 54 drives the pressing block 531 to slide on the chuck 52.

[0071] An elastic member 55 is arranged in the chuck 52 in the sliding grooves 521. Through the action of the elastic member 55, the sliding block 54 always has a tendency to move away from the auxiliary hydraulic cylinder 51. The elastic member 55 includes an abutting block 552 and a compression spring 551. The abutting block 552 slides in the sliding grooves 521. One end of the compression spring 551 is fixedly connected to the groove wall of the sliding grooves 521, and the other end is fixedly connected to the abutting block 552. Under the action of the compression spring 551, the abutting block 552 always has a tendency to move towards the sliding block 54; by pushing the abutting block 552 with the compression spring 551, and the abutting block 552 then pushing the sliding block 54, after the side plate 14 of the cross bar 11 is inserted into the slot 533, the pressing block 531 always abuts against the side plate 14.

[0072] See Figure 11 And Figure 12 , wherein, a rotating shaft 541 is arranged through the sliding block 54. Both ends of the rotating shaft 541 are rotatably connected to the sliding block 54, so that the rotating shaft 541 rotates on the sliding block 54; the pressing block 531 is fixedly connected to the rotating shaft 541, so that the pressing block 531 can rotate together with the rotating shaft 541. In this embodiment, the rotating shaft 541 is fixedly arranged through the pressing block 531.

[0073] Since the abutting block 552 always abuts against the pressing block 531 under the action of the compression spring 551, in order to make the pressing block 531 rotate smoothly, the pressing block 531 has a rotating arc surface 534. When the pressing block 531 abuts against the abutting block 552, the rotating arc surface 534 abuts against the abutting block 552, so that the pressing block 531 rotates smoothly.

[0074] In addition, a torsion spring 542 is sleeved on the rotating shaft 541. The force - applying arm of the torsion spring 542 abuts against the pressing block 531, and the force - receiving arm of the torsion spring 542 abuts against the sliding block 54. Due to the action of the torsion spring 542, the pressing block 531 always has a tendency to flip away from the abutting block 552. Among them, in the normal state, the pressing block 531 is perpendicular to the chuck 52, and at this time the torsion spring 542 is in a relaxed state; when an external force is applied to make the pressing block 531 rotate towards the abutting block 552, the torsion spring 542 is twisted and gives a force to the pressing block 531. After the external force disappears, the torsion spring 542 has a restoring deformation force and drives the pressing block 531 to rotate around the rotating shaft 541 as the central axis, so that the pressing block 531 returns to the state perpendicular to the chuck 52 again.

[0075] See Figure 12 With Figure 13 , the sliding block 54 is integrally provided with a limiting block 543. When the pressing block 531 squeezes the torsion spring 542 and rotates by a certain angle, the limiting block 543 abuts against the pressing block 531, making it difficult for the pressing block 531 to rotate further, so that the positioning piece 532 is not likely to abut against the adjacent clamping member 5. The maximum rotation angle of the pressing block 531 is set according to the actual situation. In this embodiment, the pressing block 531 can rotate up to 30 degrees at most.

[0076] The implementation principle of a lifting fixture for a container box panel in an embodiment of the present application is as follows: When the lifting fixture is in use, first place the box panel 1 in the clamping cavity 23 and align the box panel 1 with the clamping member 5. Then start the main hydraulic cylinder 4, and the main hydraulic cylinder 4 drives the side rod 3 to move, so that the side plate 14 is inserted into the slot 533. Then adjust the position of the box panel 1 and start the auxiliary hydraulic cylinder 51. The auxiliary hydraulic cylinder 51 drives the chuck 52 to move, so that the chuck 52 is embedded in the groove 15. At this time, the side plate 14 abuts against the pressing block 531, and the positioning piece 532 covers the side plate 14, and the clamping members 5 on the two side plates 14 clamp the box panel 1.

[0077] When the box panel 1 needs to be lowered, start the auxiliary hydraulic cylinder 51. The auxiliary hydraulic cylinder 51 drives the chuck 52 to move away from the box panel 1, so that the chuck 52 slides out of the groove 15, and the side plate 14 slides out of the slot 533. The side plate 14 no longer abuts against the pressing block 531, and the box panel 1 is removed from the two clamping members 5.

[0078] The above are all preferred embodiments of the present application. Without limiting the protection scope of the present application accordingly, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A lifting fixture for container panels, characterized in that: it includes a top rod (2) for connecting with a crane, two side rods (3) slidably connected to the top rod (2), and a main hydraulic cylinder (4) for driving the side rods (3) to slide on the top rod (2). The top rod (2) and the two side rods (3) form a clamping cavity (23) for clamping a plurality of panels (1). The main hydraulic cylinder (4) is connected to the top rod (2), and the piston rod of the main hydraulic cylinder (4) is connected to the side rod (3); on the side of the side rod (3) close to the other side rod (3), a plurality of clamping members (5) are arranged. The plurality of clamping members (5) are arranged at intervals along the length direction of the side rod (3). Each clamping member (5) includes a chuck (52) for clamping the panel (1) and a sub-hydraulic cylinder (51) for driving the chuck (52) to move. The sub-hydraulic cylinder (51) is fixedly connected to the side rod (3), and the chuck (52) is fixedly connected to the piston rod of the sub-hydraulic cylinder (51); on a set of opposite sides of the chuck (52), pressing members (53) are arranged. The pressing member (53) includes a pressing block (531) connected to the chuck (52) and a positioning piece (532) for pressing the panel (1). The positioning piece (532) is connected to the pressing block (531), and the pressing block (531), the positioning piece (532) and the chuck (52) form a slot (533); the chuck (52) is provided with a sliding slot (521). A sliding block (54) is arranged in the sliding slot (521) of the chuck (52). The sliding block (54) slides in the sliding slot (521) along the moving direction of the chuck (52), and the pressing block (531) is connected to the sliding block (54); in the sliding slot (521) of the chuck (52), an elastic member (55) is arranged to push the sliding block (54) in a direction away from the side rod (3).

2. The lifting fixture for container panels according to claim 1, characterized in that: the elastic member (55) includes an abutting block (552) for abutting against the pressing block (531) and a compression spring (551) for pushing the abutting block (552) to move in a direction close to the sliding block (54). The abutting block (552) slides in the sliding slot (521). One end of the compression spring (551) is fixedly connected to the wall of the sliding slot (521), and the other end is fixedly connected to the abutting block (552).

3. The lifting fixture for container panels according to claim 1, characterized in that: the end of the positioning piece (532) protrudes from the end of the clamping block away from the side rod (3).

4. The lifting fixture for container panels according to claim 1, characterized in that: a rotating shaft (541) is rotatably penetrated through the sliding block (54). The pressing block (531) is fixedly connected to the rotating shaft (541). A torsion spring (542) is sleeved on the rotating shaft (541) to always turn the positioning piece (532) in a direction covering the panel (1).

5. The lifting fixture for a container board according to claim 2, characterized in that: the pressing block (531) has a rotating arc surface (534) that abuts against the abutting block (552); the pressing block (531) is perpendicularly connected to the positioning piece (532).

6. The lifting fixture for a container board according to claim 1, characterized in that: the main hydraulic cylinder (4) is rotatably connected to the ejector rod (2), the side rod (3) is slidably connected with a pushing block (36) that slides along the arrangement direction of a plurality of clamping members (5), and the piston rod of the main hydraulic cylinder (4) is rotatably connected to the pushing block (36).

7. The lifting fixture for a container board according to claim 6, characterized in that, the side rod (3) is provided with a pushing groove (32) for the pushing block (36) to slide, a tension spring (35) for moving the pushing block (36) towards the middle of the side rod (3) is arranged in the pushing groove (32), one end of the tension spring (35) is fixedly connected to the groove wall of the pushing groove (32), and the other end is fixedly connected to the pushing block (36).

8. The lifting fixture for a container board according to claim 7, characterized in that, a guiding rod (361) is arranged on a group of opposite side surfaces of the pushing block (36), a guiding groove (34) for the guiding rod (361) to slide is formed on a group of opposite groove walls of the pushing groove (32), and the guiding rod (361) slidably penetrates through the guiding groove (34).

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