Lifting and locking device

Abstract

The utility model belongs to the technical field of lifting and locking, particularly relates to a lifting and locking device, and aims to solve the problems that the packaging quality and efficiency are influenced due to position deviation of an existing charging basket in the lifting and packaging processes, the stability of the lifted charging basket is difficult to guarantee, and the packaging requirements of charging baskets with different heights cannot be flexibly met. Two third connecting bases are fixed to the top of the bottom plate, second connecting bases are arranged on the outer sides of the third connecting bases, and first connecting bases are welded to the tops of the second connecting bases. According to the barrel bottom positioning device, the accurate conical positioning table and a barrel bottom groove are matched for positioning, and an anti-inclination backing ring is matched, so that the positioning accuracy is guaranteed; the lifting process is ensured to be stable through stable oil cylinder pushing and guide rod guiding structures, the tray is effectively prevented from falling back through a reliable mechanical self-locking piece, the packaging height is ensured to be stable, and the tray lifting device is suitable for packaging charging baskets with different heights through the design of an adjustable adjusting pad and is high in universality.

Description

Technical Field

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

[0002] In the process of sealing material barrels, it is often necessary to lift the barrels to a specific height for sealing operations. However, existing barrel lifting devices have many problems.

[0003] 1. In the material barrel positioning process, traditional methods are difficult to achieve accurate center positioning, which can easily cause the material barrel to shift in position during lifting and sealing, affecting the sealing quality and efficiency. In addition, there is a lack of effective anti-tilting measures, and the material barrel is prone to shaking or tilting during transportation, which further increases the positioning difficulty.

[0004] 2. The stability of the material barrel after it is lifted is difficult to guarantee. The existing lifting device lacks a reliable locking mechanism after lifting the material barrel. When the driving cylinder experiences pressure relief or other issues, the material barrel is very likely to fall, affecting the normal progress of the packaging process and potentially causing a safety accident.

[0005] 3. Different sizes of material bins have different requirements for lifting height, but most existing devices have a fixed height, which cannot flexibly adapt to the sealing needs of material bins of different heights and has poor versatility. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the displacement of the material barrel during lifting and sealing, which affects sealing quality and efficiency, difficulty in ensuring the stability of the barrel after lifting, and inability to flexibly adapt to the sealing needs of material barrels of different heights. Therefore, a lifting and locking device is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A lifting and locking device includes: a base plate, two third connecting seats fixed to the top of the base plate, a second connecting seat provided on the outer side of the third connecting seats, a first connecting seat welded to the top of the second connecting seats, and a tray connected to the top of the two first connecting seats.

[0009] The top of the base plate is fixed with two fourth connecting seats located outside the third connecting seat. A second hydraulic cylinder is installed inside the fourth connecting seat, and the output end of the second hydraulic cylinder abuts against the tray.

[0010] The top of the tray is provided with a positioning component, which includes a sleeve rod welded between two third connecting seats. A second guide rod is slidably connected inside the sleeve rod. The top of the tray is provided with a groove, and a conical positioning platform is provided inside the groove. The positioning platform is fixed to the top of the second guide rod. A tension spring is sleeved on the second guide rod, and the two ends of the tension spring abut against the bottom of the tray and the top of the sleeve rod, respectively.

[0011] Two brackets are fixed to the top of the base plate. The top of the brackets is provided with a locking component. The locking component includes a first hydraulic cylinder fixed to the top of the bracket. Two locking blocks are slidably connected to the top of the bracket. The two locking blocks are connected to the output end of the first hydraulic cylinder.

[0012] When the second hydraulic cylinder pushes the tray up to a set height, the first hydraulic cylinder drives the locking block to form a mechanical self-lock with the bottom of the tray.

[0013] As a further improvement to the above technical solution:

[0014] The top of the sleeve rod and the outer wall of the second guide rod are both equipped with electromagnet rings. When the electromagnet rings are de-energized, the tension spring drives the positioning platform to rise and engage with the groove at the bottom of the barrel for positioning.

[0015] The output end of the first hydraulic cylinder is fixed with a stepped rod. The stepped rod is fitted with a connecting plate and a spring. The two ends of the spring abut against the connecting plate and the large end of the stepped rod respectively through spring seats. The end of the stepped rod is threaded with a nut ring and locked by a pin.

[0016] A replaceable adjustment pad is provided between the bracket and the base plate.

[0017] Two guide sleeves are embedded in the top of the fourth connecting seat. A first guide rod is slidably connected inside the guide sleeve. A support plate is fixed to the output end of the two first guide rods and the second oil cylinder. The top of the support plate abuts against the tray.

[0018] The angle between the inclined surface of the locking block and the inclined surface at the bottom of the support plate is less than the self-locking angle of the steel component, forming a mechanical self-locking structure.

[0019] In this utility model, the lifting and locking device uses a conical positioning platform that engages with the groove at the bottom of the barrel. This allows for quick and accurate center positioning of the barrel. When the electromagnet ring is closed, the second guide rod moves the positioning platform upward under the tension of the spring. The engagement of the conical surface with the groove at the bottom of the barrel ensures the accurate positioning of the barrel on the tray, improving the precision and quality of the packaging. The pad ring further ensures the stability of the barrel during transport. Its inner diameter matches the outer diameter of the positioning platform, effectively preventing the barrel from tilting during transport and providing a good foundation for subsequent positioning and packaging operations.

[0020] In this invention, the lifting and locking device uses a second hydraulic cylinder to push a support plate, which in turn pushes the pallet upward, thus lifting the bucket. The support plate is welded to two first guide rods and the output end of the second hydraulic cylinder. The guide sleeve and the first guide rods provide vertical guidance for the support plate, ensuring that the pallet remains stable during the lifting process without shaking or shifting, thereby improving the stability and reliability of the lifting process.

[0021] In this utility model, the lifting and locking device uses a first hydraulic cylinder to push a connecting plate, which in turn pushes two locking blocks to move until the top of the locking blocks contacts the bottom of the support plate, thus limiting the support plate. This effectively prevents the tray from falling due to pressure relief in the second hydraulic cylinder, ensuring the height stability of the barrel during the sealing process and providing reliable support for the sealing operation. The angle between the inclined surface of the support plate and the inclined surface of the locking block is less than the self-locking angle of the steel material, forming a mechanical self-lock, which further enhances the reliability of the locking. Even if the first hydraulic cylinder malfunctions or there are pressure fluctuations, the locking blocks can still effectively limit the support plate.

[0022] In this utility model, the lifting and locking device has an adjusting pad between the bracket and the base plate. By replacing the adjusting pad with different thicknesses, the height of the bracket can be easily adjusted, so that the lifting and locking device can adapt to the sealing requirements of material barrels of different heights, improving the versatility and flexibility of the device and reducing the cost of equipment replacement and adjustment.

[0023] In this invention, a precise conical positioning platform is used in conjunction with the groove at the bottom of the barrel for positioning, and an anti-tilting pad ring is added to ensure positioning accuracy. A stable hydraulic cylinder push and a guide rod structure ensure smooth lifting. A reliable mechanical self-locking locking component effectively prevents the tray from falling back and ensures stable packaging height. An adjustable adjustment pad design adapts to packaging barrels of different heights, making it highly versatile. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of a lifting and locking device proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the main structure of a lifting and locking device proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the first oil cylinder and the locking block of the lifting locking device proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the second oil cylinder and support plate of the lifting and locking device proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the mounting structure of the positioning plate and the tray of the lifting and locking device proposed in this utility model.

[0029] In the diagram: 1. Bracket; 2. First hydraulic cylinder; 3. Spring; 4. Locking block; 5. Tray; 6. Contact; 7. Support frame; 8. First proximity switch; 9. Second proximity switch; 10. Base plate; 11. Adjusting shim; 12. First connecting seat; 13. Second connecting seat; 14. Third connecting seat; 15. Fourth connecting seat; 16. Connecting plate; 17. Nut ring; 18. Pin; 19. Second hydraulic cylinder; 20. Support plate; 21. Guide sleeve; 22. First guide rod; 23. Pressure pin; 24. Groove; 25. Washer ring; 26. Positioning platform; 27. Second guide rod; 28. Electromagnetic ring; 29. ​​Tension spring; 30. Sleeve rod. Detailed Implementation

[0030] 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.

[0031] Example 1

[0032] Reference Figures 1-5 A lifting and locking device, used in barrel sealing equipment, for lifting and lowering the barrel, includes: a base plate 10, a connecting seat assembly, a tray 5, a positioning assembly, a locking element, a support guide assembly, and an adjusting pad 11.

[0033] At the top of the base plate 10, two third connecting seats 14 are symmetrically connected by bolts. A second connecting seat 13 is located outside the third connecting seats 14. A first connecting seat 12 is welded to the top of the second connecting seat 13. The tops of the two first connecting seats 12 are connected to a tray 5 by bolts. The tray 5 is used to support the barrel. At the top of the base plate 10, outside the third connecting seats 14, two fourth connecting seats 15 are symmetrically connected by bolts. A second hydraulic cylinder 19 is bolted into the fourth connecting seat 15. When the second hydraulic cylinder 19 extends, it can move upward against the tray 5, thereby lifting the sealed barrel.

[0034] A positioning assembly is positioned on top of the tray 5 for center positioning of the barrel. A sleeve rod 30 is welded between the two third connecting seats 14, and a second guide rod 27 is slidably mounted within the sleeve rod 30. A groove 24 is formed on the top of the tray 5, and a positioning platform 26 is set within the groove 24. The positioning platform 26 is conical and can cooperate with the groove at the bottom of the sealed barrel to position the barrel. The positioning platform 26 is bolted to the top of the second guide rod 27. Electromagnetic rings 28 are bolted to the top of the sleeve rod 30 and the outer wall of the second guide rod 27. A tension spring 29 is fitted onto the outer wall of the second guide rod 27, with its two ends abutting against the electromagnetic rings 28 at the bottom and top of the tray 5, respectively. When the electromagnet ring 28 is closed, the second guide rod 27 moves upward under the tension of the tension spring 29, driving the positioning platform 26 to move upward. The positioning platform 26 and the groove 24 at the bottom of the barrel are used to position the barrel. At the same time, during the transportation of the sealed barrel, the two electromagnet rings 28 can be activated to attract each other, which can overcome the force of the tension spring 29 and drive the positioning platform 26 to move downward, so that the positioning platform 26 is flush with the top of the tray 5. In addition, a pad ring 25 is placed in the groove 24. The pad ring 25 is set to ensure that the barrel will not tilt during the transportation process, and the inner diameter of the pad ring 25 matches the outer diameter of the positioning platform 26, forming a matching device.

[0035] Two guide sleeves 21 are fixedly embedded in the top of the fourth connecting seat 15 by pressure pins 23, making it easy to replace the guide sleeves 21 after wear. A first guide rod 22 is slidably arranged inside the guide sleeve 21. The two first guide rods 22 and the output end of the second cylinder 19 are welded to the same support plate 20, which can provide vertical guidance for the support plate 20 using the guide sleeves 21 and the first guide rods 22. The top of the support plate 20 abuts against the tray 5. When the second cylinder 19 extends, it pushes the support plate 20 to move upward, thereby pushing the tray 5 to move upward.

[0036] The locking mechanism includes two brackets 1 symmetrically connected by bolts on the top of the base plate 10. An adjusting shim 11 is provided between the bracket 1 and the base plate 10. By replacing the adjusting shims 11 with different thicknesses, the height of the bracket 1 can be adjusted. A first hydraulic cylinder 2 is bolted to the top of the bracket 1. Two locking blocks 4, which cooperate with the tray 5, are slidably mounted on the top of the bracket 1 via a slider groove. Both locking blocks 4 are connected to the output end of the first hydraulic cylinder 2, enabling the height positioning of the tray 5 through the cooperation of the locking blocks 4 and the tray 5.

[0037] This application can be used in the field of lifting and positioning, or in other fields applicable to this application.

[0038] Example 2

[0039] refer to Figures 1-5An improvement on Embodiment 1: A lifting and locking device applied to the field of lifting and positioning. A stepped rod is welded to the output end of the first hydraulic cylinder 2. A connecting plate 16 is fitted onto the outer wall of the stepped rod, and a spring 3 is also fitted onto the outer wall of the stepped rod. The two ends of the spring 3 respectively abut against one side of the connecting plate 16 and the large end of the stepped rod via spring seats. A nut ring 17 is threaded onto the other end of the stepped rod, and a pin 18, which mates with the nut ring 17, is inserted into the outer wall of the stepped rod. When the first hydraulic cylinder 2 extends, the spring 3 pushes the connecting plate 16 to move, and the connecting plate 16 pushes the two locking blocks 4 to move until the top of the locking blocks 4 contacts the bottom of the support plate 20, limiting the support plate 20 and preventing the second hydraulic cylinder 19 from releasing pressure.

[0040] Furthermore, the inclined surface of the support block 19 has the same inclination angle as the locking block 4, and the locking block 4 moves horizontally under the action of the first spring 3. Because the angle between the inclined surface of the support plate 19 and the inclined surface of the locking block 4 is less than the self-locking angle of the steel material, a mechanical self-locking is formed.

[0041] Meanwhile, a support frame 7 is bolted to the top of the base plate 10. A first proximity switch 8 and a second proximity switch 9 are installed on one side of the support frame 7. A contact 6 that works with the two proximity switches is installed on one side of the second connecting seat 13. When the contact 6 approaches the two proximity switches, the start and stop of the two cylinders can be controlled by an external controller, so that the limit position of the tray 5 rising and falling is always kept in the set position. On the one hand, this ensures the reliability of lifting the packaging barrel, and on the other hand, it prevents the mechanical lifting over-displacement problem and ensures the safety of the device.

[0042] In use, the filling barrel is transported to the pallet 5 by the conveyor and positioned on the positioning platform 26. Then the electromagnet ring 28 is closed. At this time, the second guide rod 27 can move upward under the tension of the tension spring 29. During the upward movement, the filling barrel can be positioned by the conical surface on the positioning platform 26 and the groove 24 on the bottom of the barrel.

[0043] When the two second hydraulic cylinders 19 are activated, they can push the support plate 20 upward during the extension process. The upward movement of the support plate 20 can push the tray 5 upward. The upward movement of the tray 5 can drive the first connecting seat 12 and the second connecting seat 13 upward until the contact 6 corresponds to the first proximity switch 8. At this time, the controller closes the second hydraulic cylinder 19 and activates the first hydraulic cylinder 2 to extend. During the extension process of the first hydraulic cylinder 2, the spring 3 can push the connecting plate 16 to move. The movement of the connecting plate 16 can push the two locking blocks 4 to move until the top of the locking block 4 contacts the bottom of the support plate 20, which can limit the support plate 20 and prevent the second hydraulic cylinder 19 from releasing pressure.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of the first hydraulic cylinder 2, the first proximity switch 8, the second proximity switch 9, the second hydraulic cylinder 19, and the electromagnet ring 28 are commonplace and belong to conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] 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 lifting and locking device, characterized in that, include: The base plate (10) has two third connecting seats (14) fixed on its top. The outer side of the third connecting seat (14) is provided with a second connecting seat (13). The top of the second connecting seat (13) is welded with a first connecting seat (12). The top of the two first connecting seats (12) is connected with a tray (5). The top of the base plate (10) is fixed with two fourth connecting seats (15) located outside the third connecting seat (14). A second oil cylinder (19) is installed inside the fourth connecting seat (15), and the output end of the second oil cylinder (19) abuts against the tray (5). The top of the tray (5) is provided with a positioning component, which includes a sleeve rod (30) welded between two third connecting seats (14). A second guide rod (27) is slidably connected inside the sleeve rod (30). The top of the tray (5) is provided with a groove (24). A conical positioning platform (26) is provided inside the groove (24). The positioning platform (26) is fixed to the top of the second guide rod (27). A tension spring (29) is provided on the outer sleeve of the second guide rod (27). The two ends of the tension spring (29) abut against the bottom of the tray (5) and the top of the sleeve rod (30) respectively. The top of the base plate (10) is fixed with two brackets (1), and the top of the brackets (1) is provided with a locking element. The locking element includes a first oil cylinder (2) fixed on the top of the bracket (1). The top of the bracket (1) is slidably connected with two locking blocks (4), and the two locking blocks (4) are connected to the output end of the first oil cylinder (2). In this process, after the second cylinder (19) pushes the tray (5) to rise to a set height, the first cylinder (2) drives the locking block (4) to form a mechanical self-lock with the bottom of the tray (5).

2. The lifting and locking device according to claim 1, characterized in that, Electromagnetic rings (28) are provided on the top of the sleeve rod (30) and the outer wall of the second guide rod (27). When the electromagnetic ring (28) is de-energized, the tension spring (29) drives the positioning platform (26) to rise and cooperate with the groove at the bottom of the barrel for positioning.

3. The lifting and locking device according to claim 1, characterized in that, The output end of the first cylinder (2) is fixed with a step rod. The step rod is fitted with a connecting plate (16) and a spring (3). The two ends of the spring (3) are respectively connected to the connecting plate (16) and the large end of the step rod through spring seats. The end of the step rod is threaded with a nut ring (17) and locked by a pin (18).

4. The lifting and locking device according to any one of claims 1 to 3, characterized in that, A replaceable adjusting pad (11) is provided between the bracket (1) and the base plate (10).

5. The lifting and locking device according to claim 1, characterized in that, The top of the fourth connecting seat (15) is fitted with two guide sleeves (21), and a first guide rod (22) is slidably connected inside the guide sleeve (21). The output ends of the two first guide rods (22) and the second oil cylinder (19) are fixed with a support plate (20), and the top of the support plate (20) abuts against the tray (5).

6. The lifting and locking device according to claim 5, characterized in that, The angle between the inclined surface of the locking block (4) and the inclined surface at the bottom of the support plate (20) is less than the self-locking angle of the steel part, forming a mechanical self-locking structure.

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