Lifting tool for tank-shaped container in narrow space

Abstract

The utility model discloses a hoisting tool for a tank-shaped container in a narrow space, and solves the technical problems that when an existing hoisting device is used for hoisting the tank-shaped container, the stability is poor, potential safety hazards exist and the like. The hoisting tool comprises an upper cross beam, a hoisting assembly and a lower cross beam, the two ends of the upper cross beam are each provided with a lifting lug, a clamping groove is formed between each lifting lug and the upper cross beam, the opening directions of the two clamping grooves are the same, and the two lifting lugs are used for being hung on a support above a tank-shaped container; the lifting assembly comprises an upper lifting hook, a tightening piece and a lower lifting hook which are sequentially connected from top to bottom; the upper end of the upper lifting hook is mounted on the upper cross beam through a baffle block; the tightening piece is used for adjusting the length of the lower lifting hook connecting end; the lower end of the lower hook is mounted in the middle of the lower beam; the maximum transverse size of the lower cross beam is larger than the size of the open end of the tank-shaped container, and the lower cross beam is horizontally placed in the tank-shaped container and clamped with the open end of the tank-shaped container. The tool is compact in structure, and stable and efficient lifting operation of the tank-shaped container can be achieved.

Description

Technical Field

[0001] This utility model relates to lifting devices for industrial equipment, specifically to a lifting fixture for a can-shaped container in a confined space. Background Technology

[0002] In the manufacturing industry, tank containers are a common type of storage device. Due to their large size, they generally require lifting equipment to move them to their designated locations. However, in confined or restricted spaces such as factories, basements, and ships, traditional large lifting equipment is often ineffective, making the lifting and movement of tank containers difficult and dangerous. Current solutions largely rely on manual handling or the use of simple lifting tools, but these methods are not only inefficient but also pose safety hazards.

[0003] To address the aforementioned issues, researchers have developed various types of small lifting devices. For example, utility model patent CN206203765U discloses a lifting device that mainly includes two sets of lifting mechanisms and at least two support rods. This type of lifting device can improve efficiency and reduce manual labor intensity. However, this lifting device is mainly used for lifting square cabinets such as transformer integrated distribution cabinets. If used for lifting tank-shaped containers, the lifting mechanism is prone to swaying back and forth, resulting in poor stability during the lifting process, and safety hazards still exist. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of poor stability and safety hazards of existing lifting devices when used for lifting tank-shaped containers, and to provide a lifting fixture for tank-shaped containers in a confined space.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A lifting fixture for a can-shaped container in a confined space, used in conjunction with a support above the can-shaped container in a confined space, is characterized by comprising an upper crossbeam, a lifting assembly, and a lower crossbeam.

[0007] Each end of the upper crossbeam is equipped with a lifting lug, and a slot is formed between each lifting lug and the upper crossbeam. The opening directions of the two slots are the same, and the two lifting lugs are used to suspend the container on the support above the can-shaped container.

[0008] The lifting assembly includes an upper hook, a tightening component, and a lower hook connected sequentially from top to bottom; the upper end of the upper hook is mounted on the upper crossbeam via a stop block; the tightening component is used to adjust the length of the connection end with the lower hook to achieve the lifting of the can-shaped container; the lower end of the lower hook is mounted in the middle of the lower crossbeam.

[0009] The maximum lateral dimension of the lower crossbeam is greater than the dimension of the opening end of the can-shaped container, and it is used to be placed horizontally inside the can-shaped container and snapped into its opening end.

[0010] Furthermore, the upper crossbeam is a long strip structure with a strip-shaped hole in its middle. The upper end of the upper hook passes through the strip-shaped hole and is installed on the upper crossbeam through a stop block.

[0011] The stop block has a strip-shaped limiting block on each side, which is perpendicular to the length direction of the strip hole, and the bottom ends of the strip-shaped limiting block are respectively provided with cylindrical pins; the upper crossbeam has two sets of pin holes on both sides of the strip hole along the length direction, which are adapted to the cylindrical pins, and the strip-shaped limiting block is engaged in the corresponding pin hole by the cylindrical pins.

[0012] Furthermore, it also includes a limiting pin, which is located at the open end of one of the slots and is inserted into the upper crossbeam to prevent the lifting lug from slipping off the bracket.

[0013] Furthermore, at least one reinforcing rib is installed at the bottom of the upper crossbeam.

[0014] Furthermore, there are two reinforcing ribs, located on both sides of the upper hook, and installed along the length of the bottom of the upper crossbeam.

[0015] Furthermore, the lower crossbeam is a rectangular plate structure with a length greater than the inner diameter of the opening end of the can-shaped container; two positioning pins are symmetrically installed at both ends of the lower crossbeam along its length, and the sides of the two positioning pins are respectively used to abut against the inner wall of the opening end of the can-shaped container.

[0016] Furthermore, the tightening component is a ratchet tightener.

[0017] Furthermore, the lifting lug is made of low-carbon alloy steel 8620 and has undergone carburizing and quenching treatment.

[0018] Furthermore, the upper crossbeam is made of medium carbon steel grade 60 and has undergone quenching and tempering heat treatment.

[0019] The advantages of this utility model compared to the prior art are:

[0020] 1. This utility model includes an upper crossbeam, a lifting assembly, and a lower crossbeam. The lifting assembly includes an upper hook, a tightening component, and a lower hook connected sequentially from top to bottom. The upper end of the upper hook is mounted on the upper crossbeam via a stop block. The lower crossbeam is placed horizontally inside the can-shaped container and engaged with its open end. The overall structure is compact, overcoming the limitations of existing technologies in lifting operations in confined spaces, and enabling stable and efficient lifting of can-shaped containers.

[0021] 2. The upper crossbeam of this utility model is provided with a strip-shaped hole, which facilitates the adjustment of the connection position between the upper hook and the stop block, ensuring the adaptability of the overall lifting fixture to the position of the tank-shaped container; at the same time, two strip-shaped limiting blocks are respectively engaged on both sides of the stop block to prevent the stop block from moving left and right on the upper crossbeam, thereby improving the safety of the lifting process.

[0022] 3. This utility model also provides a limiting pin at the opening end of one of the slots. The limiting pin is inserted into the upper crossbeam to prevent the lifting lug from slipping off the bracket.

[0023] 4. This utility model also has at least one reinforcing rib plate installed at the bottom of the upper crossbeam, thereby increasing the rigidity of the upper crossbeam, which not only ensures the stability of lifting, but can also be used for lifting and moving heavy tank containers.

[0024] 5. This utility model has two symmetrically installed positioning pins at both ends of the lower crossbeam along its length, which can prevent the tank-shaped container from swaying left and right during the lifting process, thereby ensuring the stability of the lifting process.

[0025] 6. The tightening component of this utility model is a ratchet tightener, which not only has a strong tensile strength but is also easy to operate. It can lift and lower canister-shaped containers by manual operation, thereby significantly improving the safety and flexibility of working in confined spaces.

[0026] 7. This utility model can be quickly assembled and disassembled without the need for complex tools or professional skills, so as to meet the needs of rapid on-site response.

[0027] 8. This utility model can effectively perform lifting operations of tank-shaped containers even under conditions of limited space, providing great convenience for on-site maintenance, inspection or replacement. Attached Figure Description

[0028] Figure 1 This is a reference diagram showing the usage state of an embodiment of the present utility model;

[0029] Figure 2 This is a schematic diagram of the connection structure between the upper crossbeam and the upper hook in an embodiment of this utility model;

[0030] Figure 3 for Figure 2 The left view;

[0031] Figure 4 for Figure 2 Top view;

[0032] Figure 5 This is a schematic diagram of the lifting lug structure in an embodiment of this utility model;

[0033] Figure 6This is a schematic diagram of the connection structure between the lower crossbeam and the lower hook in an embodiment of this utility model;

[0034] Figure 7 for Figure 6 Top view.

[0035] The attached figures are labeled as follows:

[0036] 1-Stop block, 2-Strip limit block, 3-Limit pin, 4-Lifting lug, 5-Upper crossbeam, 51-Strip hole, 52-Pin hole, 6-Slot, 7-Reinforcing rib plate, 8-Upper hook, 9-Tightening component, 10-Lower hook, 11-Positioning pin, 12-Lower crossbeam, 13-Tank-shaped container. Detailed Implementation

[0037] To make the objectives, advantages and features of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] like Figure 1 As shown, this embodiment provides a lifting fixture for a can-shaped container in a confined space, which is used in conjunction with a support above the can-shaped container 13 in the confined space. It includes an upper crossbeam 5, a lifting assembly, and a lower crossbeam 12. The lifting assembly includes an upper hook 8, a tightening member 9, and a lower hook 10 connected sequentially from top to bottom.

[0039] Combination Figure 2 , Figure 3 , Figure 4 As shown, the upper crossbeam 5 is one of the main supporting structures of the lifting fixture, capable of supporting the lifting device. During support and lifting, it ensures the overall stability of the lifting device and prevents tilting or instability caused by uneven weight distribution or external factors. The upper crossbeam 5 is a long strip structure with a strip-shaped hole 51 in its middle. The main function of the strip-shaped hole 51 is to facilitate the left and right movement of the upper hook 8 on the upper crossbeam, thereby ensuring that when lifting the can-shaped container 13, the can-shaped container 13 moves vertically up and down without swaying left and right or back and forth. In this embodiment, the upper crossbeam 5 is made of medium carbon steel grade 60, which has been heat-treated by quenching and tempering to ensure both its strength and toughness.

[0040] The upper end of the upper hook 8 passes through the strip hole 51 and is installed on the upper crossbeam 5 through the stop block 1. The upper end of the upper hook 8 is threadedly connected to the stop block 1 to ensure that the downward pulling force borne by the upper hook 8 can be effectively transferred to the upper crossbeam 5 when lifting the can-shaped container 13.

[0041] In this embodiment, a strip-shaped limiting block 2 perpendicular to the length direction of the strip-shaped hole 51 is provided on both sides of the stop block 1. A cylindrical pin is provided at each end of the bottom of the strip-shaped limiting block 2. The upper crossbeam 5 has two sets of pin holes 52 adapted to the cylindrical pins, each set containing several holes, located on both sides of the length direction of the strip-shaped hole 51. Once the upper end of the upper hook 8 is positioned on the upper crossbeam 5, it is securely connected to the stop block 1. At this time, the strip-shaped limiting block 2 is engaged with the corresponding pin hole 52 using the cylindrical pin, thereby restraining the left and right movement of the stop block 1 during operation. This effectively prevents the stop block 1 from accidentally separating from the upper crossbeam 5, ensuring the safety of the tank container 13 during lifting and avoiding the risk of it falling.

[0042] To increase the rigidity of the upper crossbeam 5, this embodiment also installs two reinforcing ribs 7 on the upper crossbeam 5. The two reinforcing ribs 7 are located on both sides of the upper hook 8 and are installed along the length of the bottom of the upper crossbeam 5 to prevent deformation of the upper crossbeam 5 when lifting heavy tank-shaped containers 13. Based on stress analysis and material conservation considerations, during the operation of the lifting fixture, reinforcing ribs can be designed only for the key stress-bearing parts of the upper crossbeam 5, which not only ensures the strength of the upper crossbeam 5 but also minimizes the overall weight of the upper crossbeam 5.

[0043] Combination Figure 1 and Figure 5 As shown, a lifting lug 4 is installed at each end of the upper crossbeam 5. Each lifting lug 4 forms a slot 6 between itself and the upper crossbeam 5, and the opening directions of the two slots 6 are the same. The two lifting lugs 4 are used to suspend the can-shaped container 13 from the support above it. The lifting lugs 4 are fastened to the upper crossbeam 5 with four bolts. Their main function is to suspend the entire lifting fixture along with the can-shaped container 13, fixing the final load-bearing point. During the lifting process, the lifting lugs 4 need to withstand the weight of the can-shaped container 13 and also experience wear due to contact with the support. Therefore, the strength and wear resistance of the lifting lugs 4 are key considerations. In this embodiment, the lifting lugs 4 are made of low-carbon alloy steel 8620 and undergo carburizing and quenching treatment, which ensures their strength while enhancing their surface wear resistance.

[0044] like Figure 1 As shown, in this embodiment, a limiting pin 3 is also inserted into the upper crossbeam 5. The limiting pin 3 is located at the open end of one of the slots 6. It is mainly used to effectively prevent the lifting lug 4 from accidentally slipping off the support after the lifting lug 4 is successfully inserted into the support, thereby improving the safety of the lifting process.

[0045] The tightening component 9 is used to adjust the length of the connection end with the lower hook 10, thereby enabling the lifting of the can-shaped container 13. In this embodiment, the tightening component 9 is a multi-functional wire tensioner, specifically a ratchet tensioner, which includes a wire clamping part and a wire tightening part. By operating a special wrench, the anti-reverse action of the pawl is used to wind the wire rope around the ratchet drum, thereby tightening the wire. Of course, other receiving devices that can achieve the same function can also be selected.

[0046] like Figure 6 and Figure 7 As shown, the lower end of the lower hook 10 is installed in the middle of the lower crossbeam 12, thereby ensuring the stability of the lifting process.

[0047] The lower crossbeam 12 has a maximum lateral dimension larger than the opening of the can-shaped container 13, and is used to place it horizontally inside the can-shaped container 13 and engage with its opening. During lifting operations, the lower crossbeam 12 plays a crucial role in lifting the can-shaped container 13. Its dimensional design is extremely critical, requiring comprehensive consideration of factors such as the opening shape and size of the can-shaped container 13, the internal height of the container, and the bulging characteristics of the container. The aim is to ensure that the lower crossbeam 12 can easily penetrate the container while maintaining a horizontal posture during lifting, thereby ensuring the stability and safety of the entire lifting fixture during operation. In this embodiment, the lower crossbeam 12 is a rectangular plate structure, and its length is greater than the inner diameter of the opening of the can-shaped container 13.

[0048] To prevent the canister container 13 from swaying during lifting, two locating pins 11 can be symmetrically installed at both ends of the lower crossbeam 2 along its length. The sides of the two locating pins 11 are used to abut against the inner wall of the opening end of the canister container 13. The position design of the locating pins 11 is crucial and must be precisely configured according to the size of the opening of the canister container 13 to ensure a tight fit between them. The gap between them should be controlled within 3mm to ensure stability and safety.

[0049] In summary, the lifting fixture of this embodiment is specifically designed for tank-shaped containers in confined spaces. It employs a modular construction and standard components, featuring a compact and easy-to-operate design. Its core components have been carefully considered in terms of strength, wear resistance, ease of assembly and disassembly, and compatibility with container dimensions. Through carefully selected materials and optimized structural design, this fixture not only effectively meets the practical needs of efficient operation and safe maintenance in industrial settings, but also, with its clear lifting procedures, ensures safe and efficient lifting operations in confined spaces, significantly improving operational safety and efficiency.

[0050] Combination Figures 1 to 7 The following is a method for lifting a can-shaped container in a confined space according to this embodiment:

[0051] I. On-site assessment and preparation

[0052] (a) Before lifting operations, an on-site assessment of the confined space and the tank container 13 is conducted to confirm the space dimensions, the location of obstacles, and the weight and dimensions of the tank container 13.

[0053] (b) Based on the assessment results, determine the key dimensions of the limit pin 3, lifting lug 4, upper crossbeam 5, positioning pin 11 and lower crossbeam 12, and prepare the corresponding lifting fixtures and auxiliary tools, such as multi-functional tensioners, wire ropes, safety ropes, etc.

[0054] (c) Ensure that all operators are familiar with the hoisting process and are equipped with the necessary safety protection equipment.

[0055] II. Tooling Assembly and Debugging

[0056] (a) Assemble all components of the lifting fixture in a confined space or in an easily accessible location.

[0057] (b) Check that all parts are securely connected and that there is no looseness or damage.

[0058] (c) Use a multi-functional tensioner to perform a pre-tightening test to ensure that the tooling is working properly.

[0059] III. Positioning and Fixing

[0060] (a) Assemble the upper crossbeam assembly, ensuring a secure and reliable connection. Specifically, first, fasten the two lifting lugs 4 to the upper crossbeam 5 with four bolts respectively; then, pass the upper hook 8 through the upper crossbeam 5 and connect it to the stop block 1 via threads; next, install the strip-shaped limiting block 2 on the upper crossbeam 5 to prevent the stop block 1 from rotating left or right; then, suspend the two lifting lugs 4 horizontally on the support of the mobile device, so that the support is engaged in the corresponding slot 6, and insert the limiting pin 3 to prevent the lifting lugs 4 from automatically retracting horizontally; finally, connect the upper hook of the multi-functional tensioner to the upper hook 8, thus completing the assembly of the upper crossbeam assembly.

[0061] (b) Assemble the lower crossbeam assembly as follows: First, raise the lower crossbeam 12 diagonally downward into the can-shaped container 13 and adjust it to a horizontal state; then, connect the lower hook 10 to the lower crossbeam 12 by thread; then, connect the positioning pin 11 to both ends of the lower crossbeam 12 by thread and position it; finally, connect the lower hook 10 to the lower hook of the multi-functional wire tensioner, thus completing the assembly of the lower crossbeam assembly.

[0062] (c) By adjusting the position of the upper hook 8, the upper hook 8, the multi-functional tensioner and the lower hook 10 are placed on the same vertical extension line to prevent left and right swinging during the lifting process, thereby reducing safety hazards.

[0063] IV. Lifting and Moving

[0064] (a) The operator uses a multi-functional wire tensioner to tighten the wire rope and slowly lifts the can-shaped container 13 through the lower hook 10 and the lower crossbeam 12.

[0065] (b) During the lifting process, closely monitor the condition of the tank container 13 and changes in the surrounding environment to ensure safety.

[0066] (c) Adjust the length of the wire rope as needed to achieve smooth movement of the can container 13.

[0067] V. Placement and Inspection

[0068] (a) After placing the canister 13 smoothly in the predetermined position, release the multi-functional tensioner to allow the canister 13 to descend slowly.

[0069] (b) Inspect the lifting equipment and tank container 13 for damage to ensure there are no safety hazards.

[0070] (c) Remove the lifting equipment and clean up the site.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

Claims

1. A lifting fixture for a can-shaped container in a confined space, used in conjunction with a support above the can-shaped container (13) in a confined space, characterized in that: Includes the upper crossbeam (5), lifting assembly and lower crossbeam (12); Each end of the upper crossbeam (5) is equipped with a lifting lug (4), and each lifting lug (4) and the upper crossbeam (5) form a slot (6), and the opening directions of the two slots (6) are the same. The two lifting lugs (4) are used to suspend the can-shaped container (13) on the support above. The lifting assembly includes an upper hook (8), a tightening member (9), and a lower hook (10) connected sequentially from top to bottom; the upper end of the upper hook (8) is mounted on the upper crossbeam (5) via a stop block (1); the tightening member (9) is used to adjust the length of the connection end with the lower hook (10) to achieve the lifting of the tank container (13); the lower end of the lower hook (10) is mounted in the middle of the lower crossbeam (12); The maximum lateral dimension of the lower crossbeam (12) is greater than the dimension of the opening end of the can-shaped container (13), and it is used to be placed horizontally inside the can-shaped container (13) and engaged with its opening end.

2. The lifting fixture for can-shaped containers in confined spaces according to claim 1, characterized in that: The upper crossbeam (5) is a long strip structure with a strip hole (51) in the middle. The upper end of the upper hook (8) passes through the strip hole (51) and is installed on the upper crossbeam (5) through the stop block (1). The stop block (1) has a strip-shaped limiting block (2) on each side, which is perpendicular to the length direction of the strip hole (51), and the bottom ends of the strip-shaped limiting block (2) are respectively provided with cylindrical pins; the upper crossbeam (5) has two sets of pin holes (52) on both sides of the strip hole (51) that are adapted to the cylindrical pins, and the strip-shaped limiting block (2) is engaged in the corresponding pin hole (52) by the cylindrical pins.

3. The lifting fixture for can-shaped containers in confined spaces according to claim 2, characterized in that: It also includes a limiting pin (3), which is located at the open end of one of the slots (6) and is inserted into the upper crossbeam (5) to prevent the lug (4) from slipping off the bracket.

4. The lifting fixture for can-shaped containers in confined spaces according to claim 3, characterized in that: At least one reinforcing rib plate (7) is also installed at the bottom of the upper crossbeam (5).

5. The lifting fixture for can-shaped containers in confined spaces according to claim 4, characterized in that: There are two reinforcing ribs (7), located on both sides of the upper hook (8) and installed along the length of the bottom of the upper crossbeam (5).

6. The lifting fixture for can-shaped containers in confined spaces according to any one of claims 1 to 5, characterized in that: The lower crossbeam (12) is a rectangular plate structure, and its length is greater than the inner diameter of the opening end of the can-shaped container (13). Two positioning pins (11) are symmetrically installed at both ends of the lower crossbeam (12) along its length. The sides of the two positioning pins (11) are respectively used to abut against the inner wall of the opening end of the can-shaped container (13).

7. The lifting fixture for can-shaped containers in confined spaces according to claim 6, characterized in that: The tightening component (9) is a ratchet tightener.

8. The lifting fixture for can-shaped containers in confined spaces according to claim 7, characterized in that: The lifting lug (4) is made of low-carbon alloy steel 8620 and has been carburized and quenched.

9. The lifting fixture for a can-shaped container in a confined space according to claim 8, characterized in that: The upper crossbeam (5) is made of medium carbon steel grade 60 and has undergone heat treatment.

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